Effect of Hepatitis E Virus on the Male Reproductive System: A Review of Current Evidence

Hepatitis E Virus (HEV) is a globally widespread pathogen that causes acute hepatitis infection. Beyond hepatic pathogenesis, HEV has been proven to cause several extrahepatic manifestations, such as neurological, renal, and hematological manifestations. It was also associated with mortality in preg...

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Main Authors: Ahmed A. Kotb, Mohamed A. El-Mokhtar, Ibrahim M. Sayed
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Viruses
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Online Access:https://www.mdpi.com/1999-4915/17/1/66
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author Ahmed A. Kotb
Mohamed A. El-Mokhtar
Ibrahim M. Sayed
author_facet Ahmed A. Kotb
Mohamed A. El-Mokhtar
Ibrahim M. Sayed
author_sort Ahmed A. Kotb
collection DOAJ
description Hepatitis E Virus (HEV) is a globally widespread pathogen that causes acute hepatitis infection. Beyond hepatic pathogenesis, HEV has been proven to cause several extrahepatic manifestations, such as neurological, renal, and hematological manifestations. It was also associated with mortality in pregnant females. Several studies have investigated the impact of HEV on the male reproductive system; however, the available data are limited and conflicting. Assessment of the patients’ ejaculates/semen samples revealed that HEV particles are excreted in these fluids in cases of chronic infection but not acute infection. The excreted HEV particles are infectious to in vivo animal models and in vitro cell culture. However, the effect of HEV infection on male infertility is not confirmed. One study including human samples showed male infertility associated with HEV genotype 4 infection. Studies of HEV infection in animal models such as pigs, gerbils, and mice showed that HEV infection caused distortion on the testes, damage of the blood–testis barrier, and induction of inflammatory responses leading to abnormalities in the sperm. The excretion of HEV in the semen fluids raises concerns about HEV transmission via sexual transmission. However, all available data do not confirm the transmission of HEV through sexual intercourse. This review aims to summarize and critically assess the available studies investigating the influence of different HEV genotypes on the male reproductive system, providing insights into whether HEV contributes to reproductive impairment in men.
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spelling doaj-art-175a7aa373a64891b3db6d1cc78d71b22025-01-24T13:52:27ZengMDPI AGViruses1999-49152025-01-011716610.3390/v17010066Effect of Hepatitis E Virus on the Male Reproductive System: A Review of Current EvidenceAhmed A. Kotb0Mohamed A. El-Mokhtar1Ibrahim M. Sayed2Department of Microbiology and Immunology, Faculty of Pharmacy, Assiut University, Assiut 71515, EgyptGilbert & Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos P.O. Box 36, LebanonDepartment of Biomedical & Nutritional Sciences, Zuckerberg College of Health Sciences, University of Massachusetts Lowell, Lowell, MA 01854, USAHepatitis E Virus (HEV) is a globally widespread pathogen that causes acute hepatitis infection. Beyond hepatic pathogenesis, HEV has been proven to cause several extrahepatic manifestations, such as neurological, renal, and hematological manifestations. It was also associated with mortality in pregnant females. Several studies have investigated the impact of HEV on the male reproductive system; however, the available data are limited and conflicting. Assessment of the patients’ ejaculates/semen samples revealed that HEV particles are excreted in these fluids in cases of chronic infection but not acute infection. The excreted HEV particles are infectious to in vivo animal models and in vitro cell culture. However, the effect of HEV infection on male infertility is not confirmed. One study including human samples showed male infertility associated with HEV genotype 4 infection. Studies of HEV infection in animal models such as pigs, gerbils, and mice showed that HEV infection caused distortion on the testes, damage of the blood–testis barrier, and induction of inflammatory responses leading to abnormalities in the sperm. The excretion of HEV in the semen fluids raises concerns about HEV transmission via sexual transmission. However, all available data do not confirm the transmission of HEV through sexual intercourse. This review aims to summarize and critically assess the available studies investigating the influence of different HEV genotypes on the male reproductive system, providing insights into whether HEV contributes to reproductive impairment in men.https://www.mdpi.com/1999-4915/17/1/66Hepatitis E virusextrahepatic manifestationsmale reproductive systemsemenmale infertilitytesticular tissues
spellingShingle Ahmed A. Kotb
Mohamed A. El-Mokhtar
Ibrahim M. Sayed
Effect of Hepatitis E Virus on the Male Reproductive System: A Review of Current Evidence
Viruses
Hepatitis E virus
extrahepatic manifestations
male reproductive system
semen
male infertility
testicular tissues
title Effect of Hepatitis E Virus on the Male Reproductive System: A Review of Current Evidence
title_full Effect of Hepatitis E Virus on the Male Reproductive System: A Review of Current Evidence
title_fullStr Effect of Hepatitis E Virus on the Male Reproductive System: A Review of Current Evidence
title_full_unstemmed Effect of Hepatitis E Virus on the Male Reproductive System: A Review of Current Evidence
title_short Effect of Hepatitis E Virus on the Male Reproductive System: A Review of Current Evidence
title_sort effect of hepatitis e virus on the male reproductive system a review of current evidence
topic Hepatitis E virus
extrahepatic manifestations
male reproductive system
semen
male infertility
testicular tissues
url https://www.mdpi.com/1999-4915/17/1/66
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AT ibrahimmsayed effectofhepatitisevirusonthemalereproductivesystemareviewofcurrentevidence