scholarly journals A Systematic Review of the Extra-Hepatic Manifestations of Hepatitis E Virus Infection

2020 ◽  
Vol 8 (1) ◽  
pp. 9
Author(s):  
Prashanth Rawla ◽  
Jeffrey Pradeep Raj ◽  
Alan Jose Kannemkuzhiyil ◽  
John Sukumar Aluru ◽  
Krishna Chaitanya Thandra ◽  
...  
Keyword(s):  
Systematic Review ◽  
Hepatitis E Virus ◽  
English Language ◽  
Hepatitis E ◽  
Causal Association ◽  
Pubmed Central ◽  
Icosahedral Virus ◽  
Positive Sense ◽  
Number Of Publications ◽  
Hematological Manifestations

Hepatitis E virus (HEV) is a non-enveloped, positive-sense, single-stranded RNA icosahedral virus belongs to the genus Orthohepevirus within the Hepeviridae family. HEV infection can be asymptomatic, or it can cause icteric or fulminant hepatitis. Off late, there have been a number of publications reporting the extra-hepatic manifestations of HEV infection, and this systematic review is aimed at summarizing the available evidence in this regard. Two independent investigators searched PubMed, PubMed Central and Embase databases using the search string “(((hepatitis E) AND (Extrahepatic OR Extra-Hepatic))) OR ((Hepatitis E) AND (Neurology OR Cardiology OR Respiratory OR Lung OR Gastrointestinal OR musculoskeletal OR immunology OR pulmonary)) Filters: Abstract availability, English language, and Human studies”. The extra-hepatic manifestations reported in each of the selected articles were classified and reported as neurological, cardiovascular, and hematological and miscellaneous manifestations. The total number of various manifestations reported in our study were n = 324. These include neurological manifestations (n = 178/324 (54.94%)), cardiovascular and hematological manifestations (n = 113/324 (34.88%)), gastro-intestinal/pancreaticobiliary manifestations (n = 24/324 (7.41%)) and other rarer manifestations involving systems such as renal (n = 4/324; 1.24%), endocrine (n = 1/324; 0.31%), dermatology (n = 1/324; 0.31%), respiratory (n = 1/324; 0.31%), muscular (n = 1/324; 0.31%) and immune system (n = 1/324; 0.31%). Thus, HEV can have extra-hepatic manifestations affecting any system of the human body. Further research is needed to elucidate the underlying pathophysiological manifestations of these extra-hepatic manifestations and to prove causal association with HEV.

scholarly journals Epidemiology of hepatitis E virus infection in animals in Africa: a systematic review and meta-analysis

2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Abdou Fatawou Modiyinji ◽  
Jean Joel Bigna ◽  
Sebastien Kenmoe ◽  
Fredy Brice N. Simo ◽  
Marie A. Amougou ◽  
...  
Keyword(s):  
Systematic Review ◽  
Hepatitis E Virus ◽  
Data Extraction ◽  
Meta Analysis ◽  
Hepatitis E ◽  
Epidemiological Studies ◽  
Cross Sectional ◽  
Resource Limited ◽  
Study Selection ◽  
Language Restriction

Abstract Background Hepatitis E virus (HEV) is a major cause of acute hepatitis in humans worldwide and have high burden in the resource-limited countries. Better knowledge of the epidemiology of hepatitis in animals in Africa can help to understand the epidemiology among humans. The objective of this study was to summarize the prevalence of HEV infection and distribution of HEV genotypes among animals in Africa. Methods In this systematic review and meta-analysis, we comprehensively searched PubMed, EMBASE, African Journals Online, and Africa Index Medicus from January 1st, 2000 to March 22th, 2020 without any language restriction. We considered cross-sectional studies of HEV infection in animals in Africa. Study selection, data extraction, and methodological quality of included studies were done independently by two investigators. Prevalence data were pooled using the random-effects meta-analysis. This review was registered in PROSPERO, CRD42018087684. Results Twenty-five studies (13 species and 6983 animals) were included. The prevalence (antibodies or ribonucleic acid [RNA]) of HEV infection in animals varied widely depending on biological markers of HEV infection measured: 23.4% (95% confidence interval; 12.0–37.2) for anti-HEV immunoglobulins G, 13.1% (3.1–28.3) for anti-HEV immunoglobulins M, and 1.8% (0.2–4.3) for RNA; with substantial heterogeneity. In subgroup analysis, the immunoglobulins G seroprevalence was higher among pigs 37.8% (13.9–65.4). The following HEV genotypes were reported in animals: Rat-HEV genotype 1 (rats and horses), HEV-3 (pigs), HEV-7 (dromedaries), and Bat hepeviruses (bats). Conclusions We found a high prevalence of HEV infection in animals in Africa and HEV genotypes close to that of humans. Some animals in Africa could be the reservoir of HEV, highlighting the need of molecular epidemiological studies for investigating zoonotic transmission.

scholarly journals Burden of hepatitis E virus infection in pregnancy and maternofoetal outcomes: a systematic review and meta-analysis

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Jean Joel Bigna ◽  
Abdou Fatawou Modiyinji ◽  
Jobert Richie Nansseu ◽  
Marie A. Amougou ◽  
Moise Nola ◽  
...  
Keyword(s):  
Systematic Review ◽  
Virus Infection ◽  
Hepatitis E Virus ◽  
Meta Analysis ◽  
Hepatitis E ◽  
In Pregnancy

Prevalence of hepatitis E virus among swine in China from 2010 to 2019: A systematic review and meta-analysis

2021 ◽  
Vol 150 ◽  
pp. 104687
Author(s):  
Yu Chen ◽  
Qing-Long Gong ◽  
Qi Wang ◽  
Wei Wang ◽  
Xin-Yu Wei ◽  
...  
Keyword(s):  
Systematic Review ◽  
Hepatitis E Virus ◽  
Meta Analysis ◽  
Hepatitis E

scholarly journals Human Immunodeficiency Virus Infected Patients are Not at Higher Risk for Hepatitis E Virus Infection: A Systematic Review and Meta-Analysis

2019 ◽  
Vol 7 (12) ◽  
pp. 618
Author(s):  
Pedro Lopez-Lopez ◽  
Mario Frias ◽  
Angela Camacho ◽  
Antonio Rivero ◽  
Antonio Rivero-Juarez
Keyword(s):  
Systematic Review ◽  
Human Immunodeficiency Virus ◽  
Hiv Infection ◽  
Fixed Effects ◽  
Hepatitis E Virus ◽  
Meta Analysis ◽  
Geographical Area ◽  
Hepatitis E ◽  
Immunodeficiency Virus ◽  
Hiv Negative

Hepatitis E virus (HEV) infection is the most common cause of acute hepatitis in the world. It is not well established whether people infected with the human immunodeficiency virus (HIV) are more susceptible to infection with HEV than people not infected with HIV. Many studies have evaluated this relationship, although none are conclusive. The aim of this systematic review and meta-analysis was to assess whether patients with HIV infection constitute a risk group for HEV infection. A systematic review and meta-analysis was performed in line with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA), to find publications comparing HEV seroprevalences among HIV infected and uninfected populations. The analysis was matched by sex, age and geographical area, and compared patients who live with HIV and HIV-negative individuals. The odds ratio (OR) for patients with HIV was 0.87 (95% CI: 0.74–1.03) in the fixed effects meta-analysis and 0.88 (95% CI: 0.70–1.11) in random effects, with I2 = 47%. This study did not show that HIV infection was a risk factor for HEV infection when compared with those who are HIV-negative.

scholarly journals Epidemiology of hepatitis E virus infection in animals in Africa: a systematic review and meta-analysis protocol

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Abdou Fatawou Modiyinji ◽  
Jean Joel Bigna ◽  
Fredy Brice N. Simo ◽  
Moise Nola ◽  
Marie S. Ndangang ◽  
...  
Keyword(s):  
Systematic Review ◽  
Virus Infection ◽  
Hepatitis E Virus ◽  
Meta Analysis ◽  
Hepatitis E ◽  
Analysis Protocol

Epistaxis Risk Associated with Intranasal Corticosteroid Sprays: A Systematic Review and Meta-analysis

2019 ◽  
Vol 161 (1) ◽  
pp. 18-27 ◽  
Author(s):  
Eric L. Wu ◽  
William C. Harris ◽  
Casey M. Babcock ◽  
Bailin H. Alexander ◽  
Charles A. Riley ◽  
...  
Keyword(s):  
Systematic Review ◽  
Allergic Rhinitis ◽  
Relative Risk ◽  
English Language ◽  
Meta Analysis ◽  
Included Study ◽  
Pubmed Central ◽  
Intranasal Corticosteroids ◽  
Language Studies ◽  
Increased Risk

Objective Intranasal corticosteroids (INCSs) are widely utilized for the treatment of allergic rhinitis. Epistaxis is a known adverse effect of INCSs, but it is not known if the risk of epistaxis differs among INCSs. Data Sources Systematic review of primary studies identified through Medline, Embase, Web of Science, PubMed Central, and Cochrane databases. Review Methods Systematic review was conducted according to the PRISMA standard. English-language studies were queried through February 1, 2018. The search identified randomized controlled trials of INCSs for treatment of allergic rhinitis that reported incidence of epistaxis. An itemized assessment of the risk of bias was conducted for each included study, and meta-analysis was performed of the relative risk of epistaxis for each INCS. Results Of 949 identified studies, 72 met the criteria for analysis. Meta-analysis demonstrated an overall relative risk of epistaxis of 1.48 (95% CI, 1.32-1.67) for all INCSs. The INCSs associated with the highest risk of epistaxis were beclomethasone hydrofluoroalkane, fluticasone furoate, mometasone furoate, and fluticasone propionate. Beclomethasone aqueous, ciclesonide hydrofluoroalkane, and ciclesonide aqueous were associated with the lowest risk of epistaxis. Conclusions about epistaxis with use of budesonide, triamcinolone, and flunisolide are limited due to the low number of studies and high heterogeneity. Conclusions While a differential effect on epistaxis among INCS agents is not clearly demonstrated, this meta-analysis does confirm an increased risk of epistaxis for patients using INCSs as compared with placebo for treatment of allergic rhinitis.

scholarly journals Activation of CXCL-8 Transcription by Hepatitis E Virus ORF-1 via AP-1

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Zhubing Li ◽  
Lu Chen ◽  
Qiang Liu
Keyword(s):  
Transcriptional Activation ◽  
Promoter Activity ◽  
Hepatitis E Virus ◽  
Rna Virus ◽  
Ectopic Expression ◽  
Hepatitis E ◽  
Genomic Rna ◽  
Host Interactions ◽  
Positive Sense ◽  
Binding Sequence

Hepatitis E virus (HEV) is a small nonenveloped single-stranded positive-sense RNA virus and is one of the major causes for acute hepatitis worldwide. CXCL-8 is a small multifunctional proinflammatory chemokine. It was reported recently that HEV infection significantly upregulates CXCL-8 gene expression. In this study, we investigated the mechanism of HEV-induced CXCL-8 transcriptional activation. Using CXCL-8 promoter reporters of different lengths ranging from −1400 to −173, we showed that −173 promoter has the highest promoter activity in the presence of HEV genomic RNA, indicating that the −173 promoter contains sequences responsible for CXCL-8 activation by HEV. Ectopic expression of the ORF-1 protein can upregulate the −173 CXCL-8 promoter activity. In contrast, expression of the ORF-2 protein suppresses the CXCL-8 promoter activity and expression of the ORF-3 protein has no effect on the CXCL-8 promoter activity. We further showed that AP-1 is required for CXCL-8 activation because neither HEV genomic RNA nor the ORF-1 protein can upregulate the −173 CXCL-8 promoter in the absence of the AP-1 binding sequence. Taken together, our results showed that HEV and HEV ORF-1 protein activate the CXCL-8 promoter via AP-1. This novel function of HEV ORF-1 protein should contribute to our understanding of HEV-host interactions and HEV-associated pathogenesis.

Hepatitis E virus seroprevalence rate among Eastern Mediterranean and middle eastern countries; A systematic review and pooled analysis

2017 ◽  
Vol 110 ◽  
pp. 252-256 ◽  
Author(s):  
Mohammad Hadi Karbalaie Niya ◽  
Mohammad Saeid Rezaee-Zavareh ◽  
Alireza Ranaei ◽  
Seyed Moayed Alavian
Keyword(s):  
Systematic Review ◽  
Hepatitis E Virus ◽  
Eastern Mediterranean ◽  
Middle Eastern ◽  
Hepatitis E ◽  
Pooled Analysis ◽  
Seroprevalence Rate

scholarly journals RNA 5′-Triphosphatase Activity of the Hepatitis E Virus Helicase Domain

2010 ◽  
Vol 84 (18) ◽  
pp. 9637-9641 ◽  
Author(s):  
Yogesh A. Karpe ◽  
Kavita S. Lole
Keyword(s):  
Hepatitis E Virus ◽  
Hepatitis E ◽  
Open Reading Frame ◽  
Helicase Domain ◽  
Reading Frame ◽  
Essential Step ◽  
Positive Sense ◽  
Rna Triphosphatase ◽  
Rna Duplexes ◽  
Open Reading Frame 1

ABSTRACT Hepatitis E virus (HEV) has a positive-sense RNA genome with a 5′-m7G cap. HEV open reading frame 1 (ORF1) encodes a polyprotein with multiple enzyme domains required for replication. HEV helicase is a nucleoside triphosphatase (NTPase) with the ability to unwind RNA duplexes in the 5′-to-3′ direction. When incubated with 5′-[γ-32P]RNA and 5′-[α-32P]RNA, HEV helicase released 32P only from 5′-[γ-32P]RNA, showing specificity for the γ-β-triphosphate bond. Removal of γ-phosphate from the 5′ end of the primary transcripts (pppRNA to ppRNA) by RNA triphosphatase is an essential step during cap formation. It is suggested that HEV employs the helicase to mediate the first step of 5′ cap synthesis.

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