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Søgeord (hepatitis) valgt.
396 emner vises.
BMC Infectious Diseases, 9.12.2023
Tilføjet 9.12.2023
Abstract Background and aims Refugees are at higher risk for hepatitis B (HBV) and hepatitis C (HCV), but often face unique healthcare barriers to vaccination, testing, and treatment. This scoping review aimed to identify and characterize HBV and HCV prevention and care services serving refugee populations globally. Methods A literature search was conducted on Embase, Cochrane, and PubMed databases. Research studies published in English between January 2010 to July 2022 describing an HBV or HCV prevention, testing, or treatment intervention for refugees were included. Results There were a total of 69 articles reporting viral hepatitis prevalence, implementation of services, or economic modelling. Of the 38 implementation studies, 14 were stand-alone HBV and/or HCV interventions, while 24 studies included HBV and/or HCV in an intervention targeting multiple infectious diseases and/or parasitic infections. Interventions commonly included a testing (n = 30) or referral (n = 24) component. Frequently reported features to promote program accessibility included bilingual services (n = 25), community partnerships (n = 21), and multidisciplinary staff members (n = 18), such as cultural and/or linguistic mediators, community health workers, community health leaders, lay health workers, local health staff, members of the refugee community, and social workers. The most commonly reported challenge was the transience of refugees (n = 5). Twenty studies noted funding sources, of which twelve reported governmental funding (not including national health insurance) and eight reported that refugees received national health insurance. Conclusions This is the first scoping review to characterize the types of hepatitis prevention, screening, and treatment interventions serving refugee populations globally. Published experiences of HBV and HCV services for refugee populations remain limited. Additional efforts are needed to disseminate models of hepatitis interventions for refugees to ensure access to care for this key population. To achieve hepatitis elimination globally, best practices must be identified and shared to expand access to hepatitis services for refugee populations.
Læs mere Tjek på PubMedBMC Infectious Diseases, 9.12.2023
Tilføjet 9.12.2023
Abstract Background Aberrant Wnt5a expression contributes to immunity, inflammation and tissue damage. However, it remains unknown whether Wnt5a is associated with liver injury in chronic hepatitis B virus (HBV) infection. We aimed to explore the potential role of Wnt5a expression in liver injury caused by chronic HBV infection. Methods Wnt5a mRNA levels in peripheral blood mononuclear cells (PBMCs) were analyzed in 31 acute-on-chronic hepatitis B liver failure (ACHBLF) patients, 82 chronic hepatitis B (CHB) patients, and 20 healthy controls using quantitative real-time polymerase chain reaction. Intrahepatic Wnt5a protein expression from 32 chronic HBV infection patients and 6 normal controls was evaluated by immunohistochemical staining. Results Wnt5a mRNA expression was increased in CHB patients and ACHBLF patients compared to healthy controls and correlated positively with liver injury markers. Additionally, there was a significant correlation between Wnt5a mRNA expression and HBV DNA load in all patients and CHB patients but not in ACHBLF patients. Furthermore, intrahepatic Wnt5a protein expression was elevated in chronic HBV infection patients compared to that in normal controls. Moreover, chronic HBV infection patients with higher hepatic inflammatory grades had increased intrahepatic Wnt5a protein expression compared with lower hepatic inflammatory grades. In addition, the cut-off value of 12.59 for Wnt5a mRNA level was a strong indicator in predicting ACHBLF in CHB patients. Conclusions We found that Wnt5a expression was associated with liver injury in chronic HBV infection patients. Wnt5a might be involved in exacerbation of chronic HBV infection.
Læs mere Tjek på PubMedFilip, Iulia
AIDS, 9.12.2023
Tilføjet 9.12.2023
Sam Hogan, Andrew Page, Sameer Dixit, Kate A. McBride
PLoS One Infectious Diseases, 9.12.2023
Tilføjet 9.12.2023
by Sam Hogan, Andrew Page, Sameer Dixit, Kate A. McBride Background Hepatitis B virus (HBV) is a major source of disease burden worldwide, with an estimated 296 million individuals living with infections worldwide. Although vaccine programs exist to control infections, certain sub-populations around the world continue to have very high prevalence of HBV infection. Methods A systematic search of studies of HBV published after 2010 was conducted for India, Pakistan, Bangladesh, Nepal, Sri Lanka and Bhutan. Each paper was independently screened for risk of bias and inclusion. Data were extracted from included studies before being analysed to estimate pooled prevalence, and to conduct sub-group analyses. Random-effects models were used for estimating summary prevalence due to a high level of heterogeneity between studies, and funnel plots were combined with Egger’s test to assess publication bias. Meta-regression was conducted to investigate sources of between-study heterogeneity. Results The pooled prevalence of HBV across all studies was 3% (95% CI 0.02, 0.05). For countries with multiple studies, the pooled prevalence in India was 3% (95% CI 0.02, 0.04), in Pakistan 6% (95% CI 0.03, 0.09), in Bangladesh 5% (95% CI of 0.02, 0.12), and in Nepal 1% (95% CI 0.00, 0.08). There was some evidence of publication bias, and a high level of heterogeneity across studies. Risk of bias analysis found most studies to be of fair or moderate quality. Conclusions The prevalence of HBV among countries in the sub-continent was higher than the global average, but was not as high as some other regions. Countries with greater numbers of displaced persons had higher prevalence of HBV, with a wide range of prevalence between subpopulations likely reflecting differential uptake, and implementation, of vaccination programs.
Læs mere Tjek på PubMedBMC Infectious Diseases, 8.12.2023
Tilføjet 8.12.2023
Abstract Background Aberrant Wnt5a expression contributes to immunity, inflammation and tissue damage. However, it remains unknown whether Wnt5a is associated with liver injury in chronic hepatitis B virus (HBV) infection. We aimed to explore the potential role of Wnt5a expression in liver injury caused by chronic HBV infection. Methods Wnt5a mRNA levels in peripheral blood mononuclear cells (PBMCs) were analyzed in 31 acute-on-chronic hepatitis B liver failure (ACHBLF) patients, 82 chronic hepatitis B (CHB) patients, and 20 healthy controls using quantitative real-time polymerase chain reaction. Intrahepatic Wnt5a protein expression from 32 chronic HBV infection patients and 6 normal controls was evaluated by immunohistochemical staining. Results Wnt5a mRNA expression was increased in CHB patients and ACHBLF patients compared to healthy controls and correlated positively with liver injury markers. Additionally, there was a significant correlation between Wnt5a mRNA expression and HBV DNA load in all patients and CHB patients but not in ACHBLF patients. Furthermore, intrahepatic Wnt5a protein expression was elevated in chronic HBV infection patients compared to that in normal controls. Moreover, chronic HBV infection patients with higher hepatic inflammatory grades had increased intrahepatic Wnt5a protein expression compared with lower hepatic inflammatory grades. In addition, the cut-off value of 12.59 for Wnt5a mRNA level was a strong indicator in predicting ACHBLF in CHB patients. Conclusions We found that Wnt5a expression was associated with liver injury in chronic HBV infection patients. Wnt5a might be involved in exacerbation of chronic HBV infection.
Læs mere Tjek på PubMedNambusi Kyegombe, Gbolahan Ajibola, Maureen Sakoi-Mosetlhi, Tsholofelo Rebatenne, Motswedi Anderson, Simani Gaseitsiwe, Joseph Makhema, Una Ngwenya, Sikhulile Moyo, Odile Sauzet, Lucy Mupfumi
PLoS One Infectious Diseases, 8.12.2023
Tilføjet 8.12.2023
by Nambusi Kyegombe, Gbolahan Ajibola, Maureen Sakoi-Mosetlhi, Tsholofelo Rebatenne, Motswedi Anderson, Simani Gaseitsiwe, Joseph Makhema, Una Ngwenya, Sikhulile Moyo, Odile Sauzet, Lucy Mupfumi
Læs mere Tjek på PubMedBMC Infectious Diseases, 3.12.2023
Tilføjet 3.12.2023
Abstract Research has shown that multidimensional approaches to Chagas disease (CD), integrating its biomedical and psycho-socio-cultural components, are successful in enhancing early access to diagnosis, treatment and sustainable follow-up. For the first time, a consulate was selected for a community-based CD detection campaign. Two different strategies were designed, implemented and compared between 2021 and 2022 at the Consulate General of Bolivia and a reference health facility in Barcelona open to all Bolivians in Catalonia. Strategy 1 consisted in CD awareness-raising activities before referring those interested to the reference facility for infectious disease screening. Strategy 2 offered additional in-situ serological CD screening. Most of the 307 participants were Bolivian women residents in Barcelona. In strategy 1, 73 people (35.8% of those who were offered the test) were screened and 19.2% of them were diagnosed with CD. Additionally, 53,4% completed their vaccination schedules and 28.8% were treated for other parasitic infections (strongyloidiasis, giardiasis, eosinophilia, syphilis). In strategy 2, 103 people were screened in-situ (100% of those who were offered the test) and 13.5% received a CD diagnosis. 21,4% completed their vaccination schedule at the reference health facility and 2,9% were referred for iron deficiency anemia, strongyloidiasis or chronic hepatitis C. The fact that the screening took place in an official workplace of representatives of their own country, together with the presence of community-based participants fueled trust and increased CD understanding. Each of the strategies assessed had different benefits. Opportunities for systematic integration for CD based on community action in consulates may enhance early access to diagnosis, care and disease prevention.
Læs mere Tjek på PubMedBMC Infectious Diseases, 3.12.2023
Tilføjet 3.12.2023
Abstract Background Whether different anti-hepatitis B virus (HBV) drugs have different effects on COVID-19 is controversial. We aimed to evaluate the incidence of COVID-19 in chronic hepatitis B (CHB) patients receiving anti-HBV treatment, and to compare the impact of entecavir (ETV) and tenofovir disoproxil fumarate (TDF) on the severity of COVID-19. Methods CHB outpatients were enrolled from December 2022 to February 2023. Questionnaires were used to collect whether subjects were currently or previously had COVID-19 within the past 2 months, and the information of symptoms, duration, and severity if infected. Results Six hundred thirty CHB patients were enrolled, 64.3% (405/630) patients were currently or previously had COVID-19. No COVID-19 patient required hospitalization, intensive care unit admission, oxygen support or died. Majority of patients reported mild (32.8% [133/405]) and moderate (48.1% [195/405]) symptoms. After propensity score matching, 400 matched patients were obtained (ETV: 238; TDF: 162), among which the incidences of COVID-19 were comparable between ETV and TDF-treated patients (60.1% [143/238] vs. 64.2% [104/162], p = 0.468). The proportion of patients complicated with any symptom caused by COVID-19 were also similar (ETV vs. TDF: 90.9% [130/143] vs. 91.3% [95/104], p = 1.000). In addition, the severity of overall symptom was comparable between ETV and TDF-treated patients, in terms of proportion of patients complicated with severe symptom (9.8% vs. 8.7%, p = 0.989), symptom duration (4.3 vs. 4.3 days, p = 0.927), and symptom severity score (4.1 vs. 4.0, p = 0.758). Subgroup analysis supported these results. Conclusions During the current pandemic, the vast majority of CHB patients experienced non-severe COVID-19, and ETV and TDF did not affect COVID-19 severity differently.
Læs mere Tjek på PubMedBMC Infectious Diseases, 2.12.2023
Tilføjet 2.12.2023
Abstract Research has shown that multidimensional approaches to Chagas disease (CD), integrating its biomedical and psycho-socio-cultural components, are successful in enhancing early access to diagnosis, treatment and sustainable follow-up. For the first time, a consulate was selected for a community-based CD detection campaign. Two different strategies were designed, implemented and compared between 2021 and 2022 at the Consulate General of Bolivia and a reference health facility in Barcelona open to all Bolivians in Catalonia. Strategy 1 consisted in CD awareness-raising activities before referring those interested to the reference facility for infectious disease screening. Strategy 2 offered additional in-situ serological CD screening. Most of the 307 participants were Bolivian women residents in Barcelona. In strategy 1, 73 people (35.8% of those who were offered the test) were screened and 19.2% of them were diagnosed with CD. Additionally, 53,4% completed their vaccination schedules and 28.8% were treated for other parasitic infections (strongyloidiasis, giardiasis, eosinophilia, syphilis). In strategy 2, 103 people were screened in-situ (100% of those who were offered the test) and 13.5% received a CD diagnosis. 21,4% completed their vaccination schedule at the reference health facility and 2,9% were referred for iron deficiency anemia, strongyloidiasis or chronic hepatitis C. The fact that the screening took place in an official workplace of representatives of their own country, together with the presence of community-based participants fueled trust and increased CD understanding. Each of the strategies assessed had different benefits. Opportunities for systematic integration for CD based on community action in consulates may enhance early access to diagnosis, care and disease prevention.
Læs mere Tjek på PubMedBMC Infectious Diseases, 2.12.2023
Tilføjet 2.12.2023
Abstract Research has shown that multidimensional approaches to Chagas disease (CD), integrating its biomedical and psycho-socio-cultural components, are successful in enhancing early access to diagnosis, treatment and sustainable follow-up. For the first time, a consulate was selected for a community-based CD detection campaign. Two different strategies were designed, implemented and compared between 2021 and 2022 at the Consulate General of Bolivia and a reference health facility in Barcelona open to all Bolivians in Catalonia. Strategy 1 consisted in CD awareness-raising activities before referring those interested to the reference facility for infectious disease screening. Strategy 2 offered additional in-situ serological CD screening. Most of the 307 participants were Bolivian women residents in Barcelona. In strategy 1, 73 people (35.8% of those who were offered the test) were screened and 19.2% of them were diagnosed with CD. Additionally, 53,4% completed their vaccination schedules and 28.8% were treated for other parasitic infections (strongyloidiasis, giardiasis, eosinophilia, syphilis). In strategy 2, 103 people were screened in-situ (100% of those who were offered the test) and 13.5% received a CD diagnosis. 21,4% completed their vaccination schedule at the reference health facility and 2,9% were referred for iron deficiency anemia, strongyloidiasis or chronic hepatitis C. The fact that the screening took place in an official workplace of representatives of their own country, together with the presence of community-based participants fueled trust and increased CD understanding. Each of the strategies assessed had different benefits. Opportunities for systematic integration for CD based on community action in consulates may enhance early access to diagnosis, care and disease prevention.
Læs mere Tjek på PubMedBMC Infectious Diseases, 1.12.2023
Tilføjet 1.12.2023
Abstract Background Whether different anti-hepatitis B virus (HBV) drugs have different effects on COVID-19 is controversial. We aimed to evaluate the incidence of COVID-19 in chronic hepatitis B (CHB) patients receiving anti-HBV treatment, and to compare the impact of entecavir (ETV) and tenofovir disoproxil fumarate (TDF) on the severity of COVID-19. Methods CHB outpatients were enrolled from December 2022 to February 2023. Questionnaires were used to collect whether subjects were currently or previously had COVID-19 within the past 2 months, and the information of symptoms, duration, and severity if infected. Results Six hundred thirty CHB patients were enrolled, 64.3% (405/630) patients were currently or previously had COVID-19. No COVID-19 patient required hospitalization, intensive care unit admission, oxygen support or died. Majority of patients reported mild (32.8% [133/405]) and moderate (48.1% [195/405]) symptoms. After propensity score matching, 400 matched patients were obtained (ETV: 238; TDF: 162), among which the incidences of COVID-19 were comparable between ETV and TDF-treated patients (60.1% [143/238] vs. 64.2% [104/162], p = 0.468). The proportion of patients complicated with any symptom caused by COVID-19 were also similar (ETV vs. TDF: 90.9% [130/143] vs. 91.3% [95/104], p = 1.000). In addition, the severity of overall symptom was comparable between ETV and TDF-treated patients, in terms of proportion of patients complicated with severe symptom (9.8% vs. 8.7%, p = 0.989), symptom duration (4.3 vs. 4.3 days, p = 0.927), and symptom severity score (4.1 vs. 4.0, p = 0.758). Subgroup analysis supported these results. Conclusions During the current pandemic, the vast majority of CHB patients experienced non-severe COVID-19, and ETV and TDF did not affect COVID-19 severity differently.
Læs mere Tjek på PubMedTamara Prinsenberg, Joël Illidge, Paul Zantkuijl, Maarten Bedert, Maria Prins, Marc van de r Valk, Udi Davidovich
PLoS One Infectious Diseases, 30.11.2023
Tilføjet 30.11.2023
by Tamara Prinsenberg, Joël Illidge, Paul Zantkuijl, Maarten Bedert, Maria Prins, Marc van de r Valk, Udi Davidovich
Læs mere Tjek på PubMedYuchen XiaXiaoming ChengTobias NilssonMin ZhangGaihong ZhaoTadashi InuzukaYan TengYao LiD. Eric AndersonMeghan HoldorfT. Jake LiangaLiver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD 20892bState Key Laboratory of Virology and Hubei Province Key Laboratory of Allergy and Immunology, Institute of Medical Virology, TaiKang Center for Life and Medical Sciences, TaiKang Medical School, Wuhan University, Wuhan 430071, ChinacDepartment of Infectious Diseases, Novartis Institutes for Biomedical Research, Emeryville, CA 94608dAdvanced Mass Spectrometry Core, National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD 20892
Proceedings of the National Academy of Sciences, 29.11.2023
Tilføjet 29.11.2023
Proceedings of the National Academy of Sciences, Volume 120, Issue 49, December 2023.
Læs mere Tjek på PubMedChao Wang, Sihui Zhang, Jun Zhao, Mingting Wang, Qing‐Bin Lu, Bei Liu, Juan Du, Fuqiang Cui
Journal of Medical Virology, 28.11.2023
Tilføjet 28.11.2023
Chuan K. Lim, Ornella Romeo, Bang M. Tran, Dustin J. Flanagan, Emily N. Kirby, Erin M. McCartney, Edmund Tse, Elizabeth Vincan, Michael R. Beard
Journal of Medical Virology, 28.11.2023
Tilføjet 28.11.2023
Clinical Infectious Diseases, 26.11.2023
Tilføjet 26.11.2023
AbstractBackgroundLong-term outcomes of tenofovir-containing antiretroviral therapy (ART) for HBV/HIV coinfection were evaluated in Zambia.MethodsA prospective cohort of adults with HIV and hepatitis B surface antigen (HBsAg)-positivity was enrolled at ART (included tenofovir DF + lamivudine) initiation. On therapy, we ascertained HBV viral load (VL) non-suppression, ALT elevation, serologic end-points, progression of liver fibrosis, based on elastography, and hepatocellular carcinoma (HCC) incidence. We also described a subgroup (low HBV VL and no/minimal fibrosis at baseline) that, under current international guidelines, would not have been treated in the absence of their HIV infection.ResultsAmong 289 participants, at ART start, median age was 34 years, 40·1% were women, median CD4 count was 191 cells/mm3, 44·2% were hepatitis B e antigen-positive, and 28·4% had liver fibrosis/cirrhosis. Over median 5.91 years of ART, 13·6% developed HBV viral non-suppression, which was associated with advanced HIV disease. ALT elevation on ART was linked with HBV VL non-suppression. Regression of fibrosis and cirrhosis were common, progression to cirrhosis was absent, and no cases of HCC were ascertained. HBsAg seroclearance was 9·4% at 2 and 15·4% at 5 years, with higher rates among patients with low baseline HBV replication markers.DiscussionReassuring long-term liver outcomes were ascertained during tenofovir-based ART for HBV/HIV coinfection in Zambia. Higher than expected HBsAg seroclearance during ART underscores the need to include people with HIV in HBV cure research.
Læs mere Tjek på PubMedClinical Infectious Diseases, 26.11.2023
Tilføjet 26.11.2023
AbstractBackgroundWe aimed to evaluate the efficacy of opportunistic treatment of hepatitis C virus (HCV) infection among hospitalized people who inject drugs (PWID).MethodsWe performed a pragmatic, stepped wedge cluster randomized trial recruiting HCV RNA positive individuals admitted for inpatient care in departments of internal medicine, addiction medicine, and psychiatry at three hospitals in Oslo, Norway. Seven departments were sequentially randomized to change from control conditions (standard of care referral to outpatient care) to intervention conditions (immediate treatment initiation). The primary outcome was treatment completion, defined as dispensing the final package of the prescribed treatment within six months after enrolment.ResultsA total of 200 HCV RNA positive individuals were enrolled between 1 October 2019 and 31 December 2021 (mean age 47.4 years, 72.5% male, 60.5% injected past 3 months, 20.4% cirrhosis). Treatment completion was accomplished by 67 of 98 (68.4% [95% CI 58.2-77.4]) during intervention conditions and by 36 of 102 (35.3% [95% CI 26.1-45.4]) during control conditions (risk difference 33.1% [95% CI 20.0-46.2]; risk ratio 1.9 [95% CI 1.4-2.6]). The intervention was superior in terms of treatment completion (aOR 4.8 [95% CI 1.8-12.8]; p = 0.002) and time to treatment initiation (aHR 4.0 [95% CI 2.5-6.3]; p
Læs mere Tjek på PubMedWei Li, Hua Zhang, Ao Ren, Wei Fan, Qiong Qin, Ling Zhao, Ruidong Ma, Qiufeng Peng, Shiqiao Luo
Journal of Medical Virology, 24.11.2023
Tilføjet 24.11.2023
The Lancet
Lancet, 24.11.2023
Tilføjet 24.11.2023
The Global Commission on Drug Policy\'s latest report, published ahead of World AIDS Day on Dec 1, describes decriminalisation of drug use as an essential precursor to ending HIV and viral hepatitis as public health threats. Since its formation in 2011 by political, economic, and cultural leaders, the Commission has advocated for decriminalisation as part of a rights-based approach to drug policy, rooted in scientific evidence and principles of public health, to minimise the harms arising from drug use.
Læs mere Tjek på PubMedClinical Infectious Diseases, 24.11.2023
Tilføjet 24.11.2023
BMC Infectious Diseases, 17.11.2023
Tilføjet 17.11.2023
Abstract Background Healthcare utilization is typically adversely affected when the treatment is expensive and requires multiple visits. We examined the determinants of healthcare-seeking for Hepatitis C virus (HCV) infection which is asymptomatic, chronic, and requires costly treatment in an urban tertiary care referral hospital in Vietnam. Methods We conducted a secondary analysis of hospital data for patients attending the Hospital for Tropical Diseases in Ho Chi Minh City, Vietnam between 2017 and 2020 specifically for HCV infection treatment. Poisson regression was used to determine the effect of personal factors (age, sex, comorbidities) and structural factors (health insurance, proximity to the facility, seasonality, year of visit) on the number of hospital visits. Results From 2017 to 2020 a total of 22,052 eligible patients sought treatment in the hospital. Among the patients, 50.4% were males and 58.7% were > 50 years of age. The mean number of visits per person was 2.17. In the multivariate analysis compared to 2017, the number of hospital visits increased by 4% in 2018 and then significantly decreased in 2019 and 2020. Visit numbers were significantly lower (6%) among South East region residents compared to those from Central Highlands and for those who lived further away from the hospital. The visit numbers were significantly higher among older age groups (5–11%), those with health insurance (6%), and those with comorbidities (5%) compared to others. Although the number of hospital visits by females was higher (7%) than males in 2017, it significantly decreased in subsequent years. Conclusions Our study indicated that there are both structural and individual factors affecting the number of visits for HCV treatment. To meet the global strategy for elimination of HCV, Vietnam Government needs to address the structural and personal barriers to healthcare seeking, with a special focus on women.
Læs mere Tjek på PubMedBenard Kibet Langat, Kevin Omondi Ochwedo, Jamie Borlang, Carla Osiowy, Alex Mutai, Fredrick Okoth, Edward Muge, Anton Andonov, Elijah Songok Maritim
PLoS One Infectious Diseases, 15.11.2023
Tilføjet 15.11.2023
by Benard Kibet Langat, Kevin Omondi Ochwedo, Jamie Borlang, Carla Osiowy, Alex Mutai, Fredrick Okoth, Edward Muge, Anton Andonov, Elijah Songok Maritim Background The rapid spread of HBV has resulted in the emergence of new variants. These viral genotypes and variants, in addition to carcinogenic risk, can be key predictors of therapy response and outcomes. As a result, a better knowledge of these emerging HBV traits will aid in the development of a treatment for HBV infection. However, many Sub-Saharan African nations, including Kenya, have insufficient molecular data on HBV strains circulating locally. This study conducted a population-genetics analysis to evaluate the genetic diversity of HBV among Kenyan blood donors. In addition, within the same cohort, the incidence and features of immune-associated escape mutations and stop-codons in Hepatitis B surface antigen (HBsAg) were determined. Methods In September 2015 to October 2016, 194 serum samples were obtained from HBsAg-positive blood donors residing in eleven different Kenyan counties: Kisumu, Machakos, Uasin Gishu, Nairobi, Nakuru, Embu, Garissa, Kisii, Mombasa, Nyeri, and Turkana. For the HBV surface (S) gene, HBV DNA was isolated, amplified, and sequenced. The sequences obtained were utilized to investigate the genetic and haplotype diversity within the S genes. Results Among the blood donors, 74.74% were male, and the overall mean age was 25.36 years. HBV genotype A1 (88.14%) was the most common, followed by genotype D (10.82%), genotype C (0.52%), and HBV genotype E (0.52%). The phylogenetic analysis revealed twelve major clades, with cluster III comprising solely of 68 blood donor isolates (68/194-35.05%). A high haplotype diversity (Hd = 0.94) and low nucleotide diversity (π = 0.02) were observed. Kisumu county had high number of haplotypes (22), but low haplotype (gene) diversity (Hd = 0.90). Generally, a total of 90 haplotypes with some consisting of more than one sequence were observed. The gene exhibited negative values for Tajima’s D (-2.04, p
Læs mere Tjek på PubMedAdane Adugna;
Reviews in Medical Virology, 11.11.2023
Tilføjet 11.11.2023
Hepatitis B virus (HBV)‐associated liver cancer is the third most prevalent cancer‐related cause of death worldwide. Different studies have been done on the histomolecular analysis of HBV induced‐liver cancer including epigenetics which are dynamic molecular mechanisms to control gene expression without altering the host deoxyribonucleic acid, genomics characterise the integration of the viral genome with host genome, proteomics characterise how gene modifies and results overexpression of proteins, glycoproteomics discover different glyco‐biomarker candidates and show glycosylation in malignant hepatocytes, metabolomics characterise how HBV impairs a variety of metabolic functions during hepatocyte immortalisation, exosomes characterise immortalised liver cells in terms of their differentiation and proliferation, and autophagy plays a role in the development of hepatocarcinogenesis linked to HBV infection.
Læs mere Tjek på PubMedNaomi Asahara, Miki Okada-Iwabu, Masato Iwabu, Kouichi Wada, Kozo Oka, Toshimasa Yamauchi, Takashi Kadowaki
Science Advances, 11.11.2023
Tilføjet 11.11.2023
Jie ZhanJian WangZhiyi ZhangRuifei XueSuling JiangJiacheng LiuYilin LiuLi ZhuJuan XiaXiaomin YanWeimao DingChuanwu ZhuYuanwang QiuJie LiRui HuangChao Wua Department of Infectious Diseases, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu, Chinab Department of General Practice, Jiangpu Street Community Health Service Center, Nanjing, Jiangsu, Chinac Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, Chinad Institute of Viruses and Infectious Diseases, Nanjing University, Nanjing, Jiangsu, Chinae Department of Infectious Diseases, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, Chinaf Department of Infectious Diseases, The Affiliated Infectious Diseases Hospital of Soochow University, Suzhou, Jiangsu, Chinag Department of Hepatology, Huai’an No. 4 People’s Hospital, Huai’an, Jiangsu, Chinah Department of Infectious Diseases, The Fifth People’s Hospital of Wuxi, Wuxi, Jiangsu, China
Virulence, 9.11.2023
Tilføjet 9.11.2023
Amandine Pepiot, Virginie Supervie, Romulus Breban
PLoS One Infectious Diseases, 8.11.2023
Tilføjet 8.11.2023
by Amandine Pepiot, Virginie Supervie, Romulus Breban The World Health Organization recommends test-and-treat interventions to curb and even eliminate epidemics of HIV, viral hepatitis, and sexually transmitted infections (e.g., chlamydia, gonorrhea, syphilis and trichomoniasis). Epidemic models show these goals are achievable, provided the participation of individuals in test-and-treat interventions is sufficiently high. We combine epidemic models and game theoretic models to describe individual’s decisions to get tested for infectious diseases within certain epidemiological contexts, and, implicitly, their voluntary participation to test-and-treat interventions. We develop three hybrid models, to discuss interventions against HIV, HCV, and sexually transmitted infections, and the potential behavioral response from the target population. Our findings are similar across diseases. Particularly, individuals use three distinct behavioral patterns relative to testing, based on their perceived costs for testing, besides the payoff for discovering their disease status. Firstly, if the cost of testing is too high, then individuals refrain from voluntary testing and get tested only if they are symptomatic. Secondly, if the cost is moderate, some individuals will test voluntarily, starting treatment if needed. Hence, the spread of the disease declines and the disease epidemiology is mitigated. Thirdly, the most beneficial testing behavior takes place as individuals perceive a per-test payoff that surpasses a certain threshold, every time they get tested. Consequently, individuals achieve high voluntary testing rates, which may result in the elimination of the epidemic, albeit on temporary basis. Trials and studies have attained different levels of participation and testing rates. To increase testing rates, they should provide each eligible individual with a payoff, above a given threshold, each time the individual tests voluntarily.
Læs mere Tjek på PubMedRomina Salpini, Lorenzo Piermatteo, Giulia Torre, Stefano D'Anna, Sohaib Khan, Leonardo Duca, Ada Bertoli, Simone La Frazia, Vincenzo Malagnino, Elisabetta Teti, Marco Iannetta, Pierpaolo Paba, Marco Ciotti, Ilaria Lenci, Simona Francioso, Caterina Paquazzi, Miriam Lichtner, Claudio Mastroianni, Francesco Santopaolo, Giuseppe De Sanctis, Adriano Pellicelli, Giovanni Galati, Alessandra Moretti, Katia Casinelli, Luciano Caterini, Nerio Iapadre, Giustino Parruti, Iacopo Vecchiet, Maurizio Paoloni, Massimo Marignani, Francesca Ceccherini-Silberstein, Leonardo Baiocchi, Sandro Grelli, Loredana Sarmati, Valentina Svicher
International Journal of Infectious Diseases, 7.11.2023
Tilføjet 7.11.2023
Hepatitis D virus (HDV) is the smallest known human virus with a genome of ∼1.7 kb single-stranded circular RNA. HDV is a satellite virus that can infect only in presence of hepatitis B virus (HBV), its helper virus [1]. Indeed, HDV exploits the HBV surface proteins (collectively defined as HBsAg) for the release of its progeny and de novo entry into hepatocytes[1]. HBV+HDV infection causes the most severe form of viral hepatitis, leading to the development of cirrhosis in 15% of cases within 1–2 years and in 70–80% of cases within 5–10 years[2].
Læs mere Tjek på PubMedIbrahim A. Naqid, Ahmed A. Mosa, Shah Vahel Ibrahim, Nizar Hussein Ibrahim, Nawfal R. Hussein
PLoS One Infectious Diseases, 6.11.2023
Tilføjet 6.11.2023
by Ibrahim A. Naqid, Ahmed A. Mosa, Shah Vahel Ibrahim, Nizar Hussein Ibrahim, Nawfal R. Hussein Background and aims Healthcare staff are at high risk of occupational exposure to Hepatitis B and other blood-borne diseases. Lack of education about the knowledge of Hepatitis B virus contributes to an increase in cases. This study aims to determine the knowledge of the Hepatitis B virus among the medical professionals in Duhok province, Kurdistan Region of Iraq, and to determine their knowledge of the importance of vaccination. Materials and methods This cross-sectional study was conducted in Duhok province, Kurdistan Region of Iraq, among medical science students from November 2022 to February 2023 and a total of 511 students participated in the study. A Self-administered questionnaire comprising 22 items categorized into five sections was distributed to the students either electronically or by paper and pen method. The survey utilized a Five-point Likert scale when assessing respondents’ opinions on knowledge, attitude, and practice (KAP). Microsoft Excel and GraphPad Prism 9 were used for statistical analysis. Results A total of 511 responses were collected from medical, dental, pharmacy, and laboratory students. The average age of the participants was 20.74 ±1.43 years. Among the respondents, only 96 (18.8%) were fully vaccinated against the Hepatitis B virus (received 3 or more doses of the vaccine), while 294 (57.5%) were not vaccinated. Lack of vaccination programs was the major reason for not receiving a vaccination (n = 182, 62%). About 286 (55.96%) of the participants had good knowledge, attitude, and practice on Hepatitis B, manifesting median scores of 26, 18, and 20, respectively. Conclusion In our study, half of the students were found to be unvaccinated, mainly due to the absence of vaccination programs. Vaccinated students exhibited better knowledge, attitude, and practice toward the infection than non-vaccinated students. Therefore, we recommend the implementation of a vaccination program as well as training on infection prevention guidelines to increase awareness and encourage vaccination.
Læs mere Tjek på PubMedAndi Krumbholz, Anne Marcic, Malte Valentin, Mathias Schemmerer, Jürgen J. Wenzel
Journal of Medical Virology, 3.11.2023
Tilføjet 3.11.2023
Kantoku Nagakawa, Masaaki Hidaka, Takanobu Hara, Hajime Matsushima, Hajime Imamura, Takayuki Tanaka, Tomohiko Adachi, Akihiko Soyama, Kengo Kanetaka, Susumu Eguchi
PLoS One Infectious Diseases, 2.11.2023
Tilføjet 2.11.2023
by Kantoku Nagakawa, Masaaki Hidaka, Takanobu Hara, Hajime Matsushima, Hajime Imamura, Takayuki Tanaka, Tomohiko Adachi, Akihiko Soyama, Kengo Kanetaka, Susumu Eguchi Background and purpose Serum glycosylated Wisteria floribunda agglutinin-positive Mac-2 binding protein (WFA+-M2BP) is a marker of liver fibrosis and hepatocellular carcinoma (HCC). In this study, we aimed to evaluate the diagnostic ability of WFA+-M2BP for occult HCC, which current diagnostic imaging tests fail to detect. Methods Patients who underwent hepatectomy for liver transplantation (LT) and whose whole liver could be sliced and subjected to histological examination between 2010 and 2018 were eligible for this study (n = 89). WFA+-M2BP levels were measured in samples collected before the LT. Comparison of the postoperative histological test results with the preoperative imaging data grouped the patients into histologically no group (N), histologically detected group (D), histologically increased group (I), and histologically decreased or same group (DS), and the results were compared with the WFA+-M2BP values. In addition, comparisons were made between each data with and without HCC, including occult HCC, and total tumor diameter. Results Irrespective of underlying hepatic disease conditions, there were 6 patients in the N group, 10 in the D group, 41 in the I group, and 32 in the DS group. The median of the serum WFA+-M2BP level for each group was as follows: N group, 8.05 (1.25–11.9); D group, 11.025 (1.01–18.21); I group, 9.67 (0.29–17.83); and DS group, 9.56 (0.28–19.44) confidence of interval. We found no significant differences between the pairings. Comparison of underlying hepatic diseases revealed that liver cirrhosis due to hepatitis B and C and non-B and -C liver cirrhosis had no significant differences. AFP levels, on the other hand, had significant relationships in comparison between the presence or absence of histological HCC, in correlation between total tumor diameter, and in the ROC analysis for the diagnosis of HCC including occult HCC. Conclusion Serum WFA+-M2BP cannot help diagnose occult HCC that is already undetected using imaging tests in decompensated liver cirrhosis patients requiring LT.
Læs mere Tjek på PubMedAmerican Journal of Tropical Medicine and Hygiene, 1.11.2023
Tilføjet 1.11.2023
Journal Name: The American Journal of Tropical Medicine and Hygiene Volume: 109 Issue: 5 Pages: 1161-1165
Læs mere Tjek på PubMedShouyuan Wu, Jianjian Wang, Yaolong Chen
Clinical Microbiology and Infection, 31.10.2023
Tilføjet 31.10.2023
We would like to thank Dr Zhou and his colleague for their interest in our paper and for taking the time to express their concerns. In his letter to the editor, Dr Zhou raised valid concerns regarding the pooled Human immunodeficiency virus (HIV) prevalence of this analysis1,2. We would like to address these concerns and provide our response.
Læs mere Tjek på PubMedBMC Infectious Diseases, 30.10.2023
Tilføjet 30.10.2023
Abstract Background Sexually transmitted and blood-borne infections (STBBIs) is a major public health concern in China. This study assessed the overall trends in STBBIs to improve the comprehensive understanding of the burden of STBBIs and provide evidence for their prevention and control. Methods Data for the period from 2005 to 2021 were analyzed across China on infections with hepatitis B or C; syphilis; gonorrhea; and HIV infection. Trends, annual percent change (APC), and average annual percent change (AAPC) in diagnosis rate was analyzed using joinpoint regression models for the five STBBIs together or individually. Results From 2005 to 2021, the overall diagnosis rate of all five STBBIs increased, with an AAPC of 1.3% [95% confidence interval (CI) -0.5% to 3.1%]. Diagnosis rates of HIV, syphilis and hepatitis C increased individually, but it decreased for infections of hepatitis B and gonorrhea. Joinpoint analysis identified four phases in diagnosis rate of hepatitis C; three phases in diagnosis rate of hepatitis B, HIV infection, and syphilis; two in diagnosis rate of gonorrhea infection. Conclusion Despite national efforts to prevent and control STBBIs, their overall diagnosis rate has continued to rise in China, and they remain an important public health challenge. Further efforts should be made to educate the general population about STBBIs, particularly HIV. Interventions targeting vulnerable groups should be adopted and their efficacy monitored through regular analysis of trends.
Læs mere Tjek på PubMedJournal of Infectious Diseases, 29.10.2023
Tilføjet 29.10.2023
AbstractHepatitis C (HCV) remains a major public health problem, despite the availability of effective treatments. In many areas, the ability to diagnose HCV infection at the point of care is key to scaling up access to care and treatment. To achieve this, an accurate, easy-to-use and affordable diagnostic tool is required – this would enable decentralized testing and the creation of one-stop centers to eliminate gaps in the care cascade, which would help reach the millions of people with undiagnosed HCV in low- and middle-income countries and high-risk populations in high income countries. In this review, we examine the current state of point-of-care molecular technologies, the advantages and limitations of currently available devices (both near- and true-point-of-care), the potential of molecular testing to transform diagnostic medicine in the future, and the challenges that need to be addressed for broader adoption of this technology in routine clinical practice.
Læs mere Tjek på PubMedBMC Infectious Diseases, 28.10.2023
Tilføjet 28.10.2023
Abstract Background Despite the availability of an effective vaccine, chronic hepatitis B virus (HBV) infections remain a major cause of liver cirrhosis and hepatocellular carcinoma. HBV burden in pregnancy, risk factors and the timing of mother to child transmission remain poorly described especially during this era of lifelong use of Tenofovir/Lamivudine/Efavirenz as firstline for HIV treatment. We aimed to determine the burden of HBV in pregnancy and infants receiving their first dose of HBV vaccine 6 weeks after birth in a high HIV-prevalence setting. Methods Pregnant women ≥ 20 weeks’ gestational age were enrolled and followed up as mother-infant dyads from delivery, 6, 24 and 96 weeks after birth. HBV surface antigen (HBsAg) was tested (fresh plasma, immunochromatography) in pregnancy. Women testing HBsAg-seropositive were further evaluated for other four HBV-biomarkers. Maternally HBV exposed babies were tested for HBsAg from birth and HBs-antibodies from 6 months of age. Maternal-infant factors were tested in univariable and multivariable analyses for predictors of HBsAg-seropositivity. Results Six hundred HIV-uninfected and 608 HIV-infected women on Tenofovir/Lamivudine/Efavirenz-regimen with median (interquartile range) 350: (87–1477) days of therapy use were enrolled. The overall HBsAg-seroprevalence was 32/1208: 2.65%, 95% confidence interval (CI) [1.74, 3.55]; being 7/600: 1.17%, 95% CI [0.37, 1.97] and 25/608: 4.11%, 95% CI [2.52, 5.68] in HBsAg-monoinfected and HBsAg/HIV-coinfected respectively, disproportionately detected in 31/32: 96.9%, 95% CI [90.8, 100] women presumably HBV-unvaccinated in infancy. HBV exposed babies tended to be born prematurely (
Læs mere Tjek på PubMedLartey, Margaret; Ganu, Vincent J.; Tachi, Kenneth; Yang, Hongmei; Anderson, Peter L.; Langaee, Taimour; Ojewale, Oluwayemisi; Boamah, Isaac; Obo-Akwa, Adjoa; Antwi, Kenneth; Bushman, Lane R.; Ellison, Lucas; Kwara, Awewura
AIDS, 28.10.2023
Tilføjet 28.10.2023
Objective: Concentrations of tenofovir diphosphate (TFV-DP) and lamivudine triphosphate (3TC-TP) in cells are correlates of medication adherence and antiviral activity. However, studies have yet to characterize the simultaneous relationship between TFV-DP and 3TC-TP concentrations with human immunodeficiency virus (HIV) and hepatitis B virus (HBV) suppression. Methods: Individuals with HIV/HBV coinfection on tenofovir disoproxil fumarate (TDF)-containing antiretroviral therapy (ART) were enrolled. Peripheral blood mononuclear cells (PBMCs) and dried blood spots (DBS) samples were collected and steady-state TFV-DP and 3TC-TP concentrations quantified using validated methods. The relationship between patient factors, TFV-DP and 3TC-TP concentrations in PBMCs and DBS with HBV and HIV viral suppression were examined. Results: Of 138 participants on TDF-containing ART for a median duration (range) of 6 (0.75–15) years, the median age was 43 years and 64% were female. Overall, 128 (92.8%) and 129 (93.5%) had suppressed HIV and HBV viral loads, respectively. Of the 128 participants with suppressed HIV, 122 (95.3%) had suppressed HBV. Self-reported ART adherence, recent change to dolutegravir-based ART, TFV-DP and 3TC-TP concentrations in PBMCs and DBS were associated with HIV RNA suppression, while HBe antigen positivity, HIV suppression and TFV-DP concentrations in DBS were associated with HBV DNA suppression (including six persons with HBV non-suppression and HIV suppression). Conclusions: Long-term TDF/3TC-conatining ART was highly efficacious in individuals with HIV/HBV coinfection. Higher TFV-DP concentrations were predictive of suppression for both viruses. Persistent HBV viremia on TDF/3TC-containg ART requires additional research, but may represent poor adherence and the need for adherence interventions or novel antivirals. Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.
Læs mere Tjek på PubMedBhattacharya, Debika; Guo, Rong; Tseng, Chi-Hong; Emel, Lynda; Sun, Ren; Zhang, Tian-hao; Chiu, Shih-Hsin; Stranix-Chibanda, Lynda; Chipato, Tsungai; Ship, Hannah; Mohtashemi, Neaka Z.; Kintu, Kenneth; Manji, Karim P.; Moodley, Dhayendre; Maldonado, Yvonne; Currier, Judith S.; Thio, Chloe L.
AIDS, 28.10.2023
Tilføjet 28.10.2023
Objectives: To describe the clinical and virologic characteristics of HIV-HBV coinfection, including the predictors of high maternal HBV viral load in pregnant women with HIV in sub-Saharan Africa (SSA). Methods: HPTN 046 was a HIV perinatal transmission clinical trial evaluating infant nevirapine vs placebo. Women-infant pairs (n = 2016) were enrolled in SSA from 2007-2010; 1579 (78%) received antiretrovirals (ARV). Maternal delivery samples were retrospectively tested for hepatitis B surface antigen (HBsAg), and if positive, were tested for hepatitis B e antigen (HBeAg) and HBV viral load (VL). High HBV VL was defined as ≥106 IU/ml. Results: Overall, 4.4% (88/2016) had HBV co-infection, with geographic variability ranging from 2.4-8.7% (p
Læs mere Tjek på PubMedMpebe, Gorata G.A.; Phinius, Bonolo B.; Mutenga, Sharon; Baruti, Kabo; Bhebhe, Lynnette; Choga, Wonderful T.; Jongman, Mosimanegape; Pretorius-Holme, Molly; Gaolathe, Tendani; Mmalane, Mompati; Shapiro, Roger; Makhema, Joseph; Lockman, Shahin; Moyo, Sikhulile; Anderson, Motswedi; Gaseitsiwe, Simani
AIDS, 28.10.2023
Tilføjet 28.10.2023
Objectives: We sought to determine hepatitis B surface antigen (HBsAg) loss and its predictors among people with chronic hepatitis B (CHB) infections and HIV (PWH) in Botswana. Methods: Archived plasma samples from a cohort of PWH in Botswana (2013–2018) with 3 yearly time-points were used. Samples were screened for HBsAg, immunoglobulin M HBV core antibodies (anti-HBc IgM) and HBV e-antigen (HBeAg) at all time points. HBV deoxyribonucleic acid (DNA) quantification was done at baseline. The Wilcoxon rank-sum was used to compare continuous variables while the chi-squared test and Fishers exact test were used for categorical data where appropriate. Logistic regression was used to assess predictors of seroclearance. Results: Of 141 participants with HBsAg positive serology (HBsAg+) at baseline, 92.2% (131/141) [95% CI: 87.4–96.1] were persistently HBsAg+ at year 1. We report a HBsAg loss of 7.1% (10/141) [95% CI: 3.9–12.6] among participants with negative HBeAg and negative IgM serologies. HBsAg loss was 6.3% (7/111) among ART-experienced participants and 10.7% (3/28) [95% CI:0.4–5.0] in ART-naïve participants. Most participants who had positive anti-HBc IgM serology and did not lose HBsAg were on either 3TC-based therapy or non-TDF-based therapy, except for one participant. The participants also had varying HBeAg status. HBsAg loss was independent of HIV viral load, CD4 count, age and sex. Conclusions: We report a HBsAg loss of 6.3% over a 3 year period among ART-experienced CHB participants. Future studies that focus on HBsAg loss in mono-infected patients and the possible correlation between HBeAg status and HBsAg loss are warranted. Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.
Læs mere Tjek på PubMedBMC Infectious Diseases, 26.10.2023
Tilføjet 26.10.2023
Abstract Objective To compare the effectiveness of seven major interventions [Bulevirtide (BLV), Interferon (IFN), Nucleoside analogs (NAs), BLV + IFN, BLV + NAs, IFN + NAs, and Placebo] to treat chronic hepatitis D. Methods We followed PRISMA-NMA guidelines, searched databases (Cochrane Library, PubMed, EMBASE, and Web Of Science) for eligible randomized controlled trials (RCTs), and applied STATA17.0 software to execute the meta-analysis. Results We included 14 randomized controlled trials (814 patients) comparing seven different interventions. The results of the network meta-analysis showed that: ① Sustained virological response (after 24 weeks of follow-up): Four intervention groups (BLV + IFN, IFN alone, IFN + NAs, and NAs alone) were effective (relative risk (RR) = 13.30, 95% confidence interval (Cl) [1.68,105.32], RR = 12.13, 95% Cl [1.46,101.04], RR = 5.05, 95% Cl [1.68,15.19], RR = 5.03, 95% Cl [1.66,15.20]), with no statistically significant differences between the four groups. The top three in probability rankings were: BLV + NAs, BLV + IFN, and BLV alone (surface under the cumulative ranking curve (SUCRA) = 86.8%, 80.3%, and 48.4%; ② Sustained biochemical response (after 24 weeks of follow-up): BLV + IFN and IFN were superior to BLV (RR = 14.71, 95% Cl [1.14,189.07], RR = 16.67, 95% Cl [1.39,199.52]). The top three were BLV alone, BLV + NAs, and BLV + IFN (SUCRA = 86.9%,81.2%, and 64.3%). ③ Histological response: NAs were superior to BLV (RR = 2.08, 95% Cl [1.10,3.93]), whereas the difference between other treatment regimens was not statistically significant, and the top three in the probability ranking were BLV alone, BLV + NAs, and BLV + IFN (SUCRA = 75.6%, 75.6%, and 61.8%). Conclusions IFN, IFN + BLV, and IFN + NAs were effective in clearing HDV RNA and normalizing alanine aminotransferase levels; however, IFN and IFN + NAs had a high rate of viral relapse at 24 weeks post-treatment follow-up. There was no additional benefit of adding NAs to IFN therapy for chronic hepatitis D; however, the combination of IFN + BLV significantly improved short-term HDV RNA clearance, which showed strong synergistic effects. The seven regimens included in the study did not contribute significantly to liver histological improvement. Therefore, the IFN + BLV combination has the most potential as a treatment option to improve the long-term prognosis or even cure chronic hepatitis D. Trial registration This systematic evaluation and meta-analysis was registered with PROSPERO under the registration number: CRD42022314544.)
Læs mere Tjek på PubMedHaozhen Ren, Xun Chen, Jinglin Wang, Ying Chen, Alex Hafiz, Qian Xiao, Shiwei Fu, Advaitha Madireddy, Wei Vivian Li, Xiaolei Shi, Jian Cao
Journal of Medical Virology, 26.10.2023
Tilføjet 26.10.2023
BMC Infectious Diseases, 26.10.2023
Tilføjet 26.10.2023
Abstract Background Intestinal infectious diseases (IIDs) are a significant public health issue in China, and the incidence and distribution of IIDs vary greatly by region and are affected by various factors. This study aims to describe the spatio-temporal trends of IIDs in the Chinese mainland and investigate the association between socioeconomic and meteorological factors with IIDs. Methods In this study, IIDs in mainland China from 2006 to 2017 was analyzed using data obtained from the China Center for Disease Control and Prevention. Spatio-temporal mapping techniques was employed to visualize the spatial and temporal distribution of IIDs. Additionally, mean center and standard deviational ellipse analyses were utilized to examine the spatial trends of IIDs. To investigate the potential associations between IIDs and meteorological and socioeconomic variables, spatiotemporal zero-inflated Poisson and negative binomial models was employed within a Bayesian framework. Results During the study period, the occurrence of most IIDs has dramatically reduced, with uneven reductions in different diseases. Significant regional differences were found among IIDs and influential factors. Overall, the access rate to harmless sanitary toilets (ARHST) was positively associated with the risk of cholera (RR: 1.73, 95%CI: 1.08-2.83), bacillary dysentery (RR: 1.32, 95%CI: 1.06-1.63), and other intestinal infectious diseases (RR: 1.88, 95%CI: 1.52-2.36), and negatively associated with typhoid fever (RR: 0.66, 95%CI: 0.51-0.92), paratyphoid fever (RR: 0.71, 95%CI: 0.55-0.92). Urbanization is only associated with hepatitis E (RR: 2.48, 95%CI: 1.12-5.72). And GDP was negatively correlated with paratyphoid fever (RR: 0.82, 95%CI: 0.70-0.97), and bacillary dysentery (RR: 0.77, 95%CI: 0.68-0.88), and hepatitis A (RR: 0.84, 95%CI: 0.73-0.97). Humidity showed positive correlation with some IIDs except for amoebic dysentery (RR: 1.64, 95%CI: 1.23-2.17), while wind speed showed a negative correlation with most IIDs. High precipitation was associated with an increased risk of typhoid fever (RR: 1.52, 95%CI: 1.09-2.13), and high temperature was associated with an increased risk of typhoid fever (RR: 2.82, 95%CI: 2.06-3.89), paratyphoid fever (RR: 2.79, 95%CI: 2.02-3.90), and HMFD (RR: 1.34, 95%CI: 1.01-1.77). Conclusions This research systematically and quantitatively studied the effect of socioeconomic and meteorological factors on IIDs, which provided causal clues for future studies and guided government planning.
Læs mere Tjek på PubMedBMC Infectious Diseases, 25.10.2023
Tilføjet 25.10.2023
Abstract Background Chronic HBV infection is always accompanied by differences in the balance between regulatory T cells (Tregs) and T-helper 17 (Th17) cells in infection phases. IL-21 plays an important role in the progression of chronic HBV infection. Thus, the aim of our study was to investigate the role of the regulatory function of IL-21 in maintaining the balance between Tregs and Th17 cells in chronic HBV infection. Methods Twenty-five chronic HBV-infected patients in the immune-tolerant (IT) phase and 23 chronic hepatitis B (CHB) patients were recruited in this study. Cytokines production was measured by ELISA. The mRNA expression levels were determined by qPCR. CD4+T cells were stimulated with or without IL-21. Tregs and Th17 cells were measured by flow cytometry. pSTAT3 and STAT3 expression was assessed by Western blotting. Results The concentration of IL-21 in the serum of CHB were significantly higher than that in the serum from IT patients, and IL-21 and IL-21R levels in the PBMCs from CHB were higher than those from IT patients. IL-21 promoted Th17 cells differentiation and function but inhibited Treg cells differentiation and function by activating STAT3 signaling pathways, upregulating RORγt expression, downregulating Foxp3 expression, by increasing IL-17and IL-22 secretion, and decreasing TGF-β secretion in chronic HBV infection. The proportion of Tregs and TGF-β concentrations in CHB was significantly lower than that in IT patients. Furthermore, the percentage of Th17 cells and the IL-17 concentration in CHB was markedly higher than that in IT patients, causing a reduction in the Tregs/Th17 ratio in CHB patients. Conclusions Our results suggest that IL-21 may contribute to inflammation in chronic HBV infection by modulating the balance between Treg and Th17 cells.
Læs mere Tjek på PubMedBMC Infectious Diseases, 25.10.2023
Tilføjet 25.10.2023
Abstract Background Chronic HBV infection is always accompanied by differences in the balance between regulatory T cells (Tregs) and T-helper 17 (Th17) cells in infection phases. IL-21 plays an important role in the progression of chronic HBV infection. Thus, the aim of our study was to investigate the role of the regulatory function of IL-21 in maintaining the balance between Tregs and Th17 cells in chronic HBV infection. Methods Twenty-five chronic HBV-infected patients in the immune-tolerant (IT) phase and 23 chronic hepatitis B (CHB) patients were recruited in this study. Cytokines production was measured by ELISA. The mRNA expression levels were determined by qPCR. CD4+T cells were stimulated with or without IL-21. Tregs and Th17 cells were measured by flow cytometry. pSTAT3 and STAT3 expression was assessed by Western blotting. Results The concentration of IL-21 in the serum of CHB were significantly higher than that in the serum from IT patients, and IL-21 and IL-21R levels in the PBMCs from CHB were higher than those from IT patients. IL-21 promoted Th17 cells differentiation and function but inhibited Treg cells differentiation and function by activating STAT3 signaling pathways, upregulating RORγt expression, downregulating Foxp3 expression, by increasing IL-17and IL-22 secretion, and decreasing TGF-β secretion in chronic HBV infection. The proportion of Tregs and TGF-β concentrations in CHB was significantly lower than that in IT patients. Furthermore, the percentage of Th17 cells and the IL-17 concentration in CHB was markedly higher than that in IT patients, causing a reduction in the Tregs/Th17 ratio in CHB patients. Conclusions Our results suggest that IL-21 may contribute to inflammation in chronic HBV infection by modulating the balance between Treg and Th17 cells.
Læs mere Tjek på PubMedKarthik Gnanapandithan, Maged P. Ghali
PLoS One Infectious Diseases, 24.10.2023
Tilføjet 24.10.2023
by Karthik Gnanapandithan, Maged P. Ghali Hepatitis C virus (HCV) is a global health issue with an estimated prevalence of 2.4 to 3 million people in the US and 58 million worldwide. Previous reports from the US have shown that close to half of those with the infection are unaware of their status. Although the current therapy for HCV is very effective, the primary barrier has been the inability to diagnose a large fraction of those infected. We studied public awareness of HCV in the US using National Health Nutrition and Examination Survey data from 2013 to 2020. Our aim was to measure awareness of infection in individuals with HCV and identify possible barriers to diagnosis. In total, 206 individuals with HCV were included in the weighted analysis. The weighted awareness of infection was 60.1%, suggesting that over 0.8 million are unaware nationally. Awareness was significantly low in the Mexican American and Asian populations. Non-US citizens and non–US-born individuals also had poor awareness. The transaminases were more elevated in those unaware of the infection, suggesting their higher risk of liver fibrosis. Although the proportion of infected people aware of their illness has been rising, over 0.8 million are still unaware of their infection and their risk of liver damage. We believe policy measures focused on further intense screening and educational campaigns, particularly in high-risk groups, are vital in realizing the World Health Organization’s goal of eliminating HCV as a global health threat.
Læs mere Tjek på PubMedKatarey, Dev; Tan, Yishi; Mourad, Adele; Potts, Jonathan R; Vickers, Laura; Beksinska, Alicja; Sharp, Harriet; Parnell, Bethany; Gilleece, Yvonne; Verma, Sumita
Journal of Acquired Immune Deficiency Syndromes, 23.10.2023
Tilføjet 23.10.2023
Abstract: Introduction: Due to improved life expectancy in people living with HIV (PLWH), liver disease is increasingly being recognised. We assessed non-viral chronic liver disease (CLD) burden in PLWH. Methods: The HeAL (HIV non-virAL liver disease) study (2014-2021) prospectively recruited PLWH with elevated serum alanine aminotransferase (ALT) levels and negative hepatitis serology. Clinically significant hepatic fibrosis (CSHF) was defined as liver stiffness measurement (LSM) of >7.1 kPa and hazardous alcohol use as AUDIT score > 8. Primary outcome was prevalence/predictors of CSHF. Results: Total recruited were n=274, 92% male, median age 52 (45-59) years, 96% having undetectable HIV viral load. Overall, n=97 (35%) had hazardous alcohol use, n=72 (26%) had metabolic syndrome (MS) and 17%-27% had exposure to hepatotoxic antiretrovirals (ARV). Prevalence of CSHF was 20% (n=54), prevalence of cirrhosis (LSM >12.5 kPa) being 7% (19/274). Risk factors for CSHF were hazardous alcohol use in 44% (n=24), MS in 46% (n=25) and hepatotoxic ARV in 56% (n=30), majority having more than one risk factor. Independent predictors of CSHF were serum HDL (OR 0.220; 95% CI 0.061-0.790, p=0.020) (inverse relationship); serum AST (OR 1.033, 95% CI 1.001-1.067, p=0.045) and didanosine use (OR 2.878, 95% CI 1.228-6.774, p=0.015). Moderate-severe hepatic steatosis was identified in 52%(n=142). Both FIB-4 and APRI performed poorly in predicting CSHF (PPV 27.3% and 30.6% respectively) and advanced fibrosis(>F3) (PPV 17.6% and 5.9% respectively). Conclusion: In this study, 20% of PLWH had CSHF associated with high prevalence of hazardous alcohol use/MS/potentially hepatotoxic ARV. These potentially modifiable risk factors need addressing. Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.
Læs mere Tjek på PubMedBMC Infectious Diseases, 21.10.2023
Tilføjet 21.10.2023
Abstract Background Despite the preventive policies adopted, reduction in sexually transmitted infections (STIs) among men who have sex with men (MSM) has been limited. The risk of hepatitis C virus (HCV) infection has increased among the most vulnerable population groups, including MSM. The aim of this study was to estimate the prevalence of HCV infection and to assess risky practices among MSM from 12 Brazilian cities. Methods This study was carried out from June to December 2016 using respondent driven sampling (RDS). Participants completed a self-administered questionnaire to collect behavioral, socioeconomic, and demographic variables. In addition, the rapid diagnostic test (RDT) for HCV was offered. Positive results were sent to Instituto Adolfo Lutz for confirmation. Results A total of 4,176 participants were recruited and 23 samples were sent for confirmation. Of these, 16 were confirmed, resulting in a prevalence of 0.7% (95% CI: 0.3%—1.7%). The Southeast region showed a prevalence of 0.9% (95% CI: 0.3—2.6), followed by the South region, with 0.6% (95% CI: 0.2—2.1). The Northeast region had a prevalence of 0.3% (95% CI: 0.1—1.0) and the Midwest 0.1% (95% CI: 0.0—0.7). No positive cases were found in the North. Single men aged 40 years or older were the majority of participants exposed to HCV. High levels of alcohol consumption, illicit drug use, irregular condom use, in addition to infection with other STIs, were associated with exposure to HCV. Conclusions STIs continue to be important health problems in Brazil and globally. Many STIs are inapparent for many years until they bring more serious consequences. Extra investment in HCV is also warranted, given that it can be eliminated. Relying solely on clinical data to provide information about inapparent infection, especially in stigmatized populations, will make that goal more difficult to achieve. Surveillance studies, such as the one reported here need to be repeated over time to demonstrate trends and to provide information for evaluation, program and policies. Investments in the most vulnerable populations are critical to achieve the World Health Organization global health goals including the elimination of viral hepatitis by 2030.
Læs mere Tjek på PubMedBMC Infectious Diseases, 20.10.2023
Tilføjet 20.10.2023
Abstract Background Despite the preventive policies adopted, reduction in sexually transmitted infections (STIs) among men who have sex with men (MSM) has been limited. The risk of hepatitis C virus (HCV) infection has increased among the most vulnerable population groups, including MSM. The aim of this study was to estimate the prevalence of HCV infection and to assess risky practices among MSM from 12 Brazilian cities. Methods This study was carried out from June to December 2016 using respondent driven sampling (RDS). Participants completed a self-administered questionnaire to collect behavioral, socioeconomic, and demographic variables. In addition, the rapid diagnostic test (RDT) for HCV was offered. Positive results were sent to Instituto Adolfo Lutz for confirmation. Results A total of 4,176 participants were recruited and 23 samples were sent for confirmation. Of these, 16 were confirmed, resulting in a prevalence of 0.7% (95% CI: 0.3%—1.7%). The Southeast region showed a prevalence of 0.9% (95% CI: 0.3—2.6), followed by the South region, with 0.6% (95% CI: 0.2—2.1). The Northeast region had a prevalence of 0.3% (95% CI: 0.1—1.0) and the Midwest 0.1% (95% CI: 0.0—0.7). No positive cases were found in the North. Single men aged 40 years or older were the majority of participants exposed to HCV. High levels of alcohol consumption, illicit drug use, irregular condom use, in addition to infection with other STIs, were associated with exposure to HCV. Conclusions STIs continue to be important health problems in Brazil and globally. Many STIs are inapparent for many years until they bring more serious consequences. Extra investment in HCV is also warranted, given that it can be eliminated. Relying solely on clinical data to provide information about inapparent infection, especially in stigmatized populations, will make that goal more difficult to achieve. Surveillance studies, such as the one reported here need to be repeated over time to demonstrate trends and to provide information for evaluation, program and policies. Investments in the most vulnerable populations are critical to achieve the World Health Organization global health goals including the elimination of viral hepatitis by 2030.
Læs mere Tjek på PubMedBMC Infectious Diseases, 20.10.2023
Tilføjet 20.10.2023
Abstract Objective Hepatitis C presents a profound global health challenge. The impact of COVID-19 on hepatitis C, however, remain uncertain. This study aimed to ascertain the influence of COVID-19 on the hepatitis C epidemic trend in Henan Province. Methods We collated the number of monthly diagnosed cases in Henan Province from January 2013 to September 2022. Upon detailing the overarching epidemiological characteristics, the interrupted time series (ITS) analysis using autoregressive integrated moving average (ARIMA) models was employed to estimate the hepatitis C diagnosis rate pre and post the COVID-19 emergence. In addition, we also discussed the model selection process, test model fitting, and result interpretation. Results Between January 2013 and September 2022, a total of 267,968 hepatitis C cases were diagnosed. The yearly average diagnosis rate stood at 2.42/100,000 persons. While 2013 witnessed the peak diagnosis rate at 2.97/100,000 persons, 2020 reported the least at 1.7/100,000 persons. The monthly mean hepatitis C diagnosed numbers culminated in 2291 cases. The optimal ARIMA model chosen was ARIMA (0,1,1) (0,1,1)12 with AIC = 1459.58, AICc = 1460.19, and BIC = 1472.8; having coefficients MA1=-0.62 (t=-8.06, P
Læs mere Tjek på PubMedJournal of Infectious Diseases, 19.10.2023
Tilføjet 19.10.2023
AbstractDespite remarkable therapeutic advanced, hepatitis C virus (HCV) infection continues to be a major global problem. While the development of highly effective direct-acting antivirals (DAAs) has ensured that almost all those who are treated achieve viral cure, progress toward HCV elimination globally has stalled due to challenges upstream of treatment in the cascade of care, namely diagnosis and linkage to care. The major challenge continues to be the relative complexity of HCV diagnosis with the current requirement for a confirmatory HCV RNA test after an initial antibody-positive result. in this review, challenges with the current paradigm are highlighted with a focus on new technologies, as well as simple strategies using existing tools, that may simplify diagnosis and improve linkage to care and treatment. To achieve HCV elimination, improvements in the HCV diagnostics field to allow for a simple single-step diagnosis are required.
Læs mere Tjek på PubMedEmily C. Goins, Lauren E. Wein, Virginia Y. Watkins, Alexa I. K. Campbell, R. Phillips Heine, Brenna L. Hughes, Sarah K. Dotters-Katz, Jerome Jeffrey Federspiel
PLoS One Infectious Diseases, 18.10.2023
Tilføjet 18.10.2023
by Emily C. Goins, Lauren E. Wein, Virginia Y. Watkins, Alexa I. K. Campbell, R. Phillips Heine, Brenna L. Hughes, Sarah K. Dotters-Katz, Jerome Jeffrey Federspiel Objective Hepatitis C virus and intrahepatic cholestasis of pregnancy (ICP) are well-known independent risk factors for adverse outcomes in pregnancy. In addition, it is well-established that there is an association between Hepatitis C and ICP. This study’s objective was to describe the impact of having both Hepatitis C and ICP on maternal and obstetric outcomes compared to patients having either Hepatitis C or ICP. Methods We conducted a retrospective cohort study of the Nationwide Readmissions Database, an all-payor sample of discharges from approximately 60% of US hospitalizations. Deliveries at 24–42+ weeks between 10/2015 and 12/2020 were included. Diagnosis of Hepatitis C and ICP, and outcomes related to severe maternal morbidity were identified using International Classification of Disease-10 codes. Patients were categorized based on Hepatitis C and ICP status. Weighted logistic and negative binomial regression analyses were used to evaluate the association between Hepatitis C and ICP status and outcomes, adjusting for patient and hospital characteristics. The primary outcome was any severe maternal morbidity; secondary outcomes included acute respiratory distress syndrome, acute kidney injury, sepsis, gestational diabetes, cesarean delivery, preterm birth, and hospital length of stay. We modeled interaction terms between ICP and Hepatitis C to assess whether there was a greater or lesser effect from having both conditions on outcomes than we would expect from additive combination of the individual components (i.e., synergy or antagonism). Results A total of 10,040,850 deliveries between 24–42+ weeks were identified. Of these, 45,368 had Hepatitis C only; 84,582 had ICP only; and 1,967 had both Hepatitis C and ICP. Patients with both Hepatitis C and ICP had 1.5-fold higher odds of developing severe maternal morbidity compared to having neither. There was an also an increased odds of severe maternal morbidity in patients with both Hepatitis C and ICP compared to patients with only Hepatitis C or ICP. Having both was also associated with higher odds of preterm birth and length of stay compared to having only Hepatitis C, only ICP, or neither (preterm birth: aOR 5.09, 95% CI 4.87–5.33 vs. neither; length of stay: 46% mean increase, 95% CI 35–58% vs. neither). Associations were additive—no significant interactions between hepatitis C and cholestasis were found on rates of severe maternal morbidity, acute respiratory distress syndrome, acute kidney injury, sepsis, cesarean section, or preterm birth (all p>0.05), and was minimal for gestational diabetes and length of stay. Conclusion Hepatitis C and ICP are independent, additive risk factors for adverse maternal and obstetric outcomes. Despite physiologic plausibility, no evidence of a synergistic effect of these two diagnoses on outcomes was noted. These data may be useful in counseling patients regarding their increased risk of adverse outcomes when ICP presents in association with Hepatitis C versus ICP alone.
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