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SARS-CoV-2 and male infertility: from short- to long-term impacts
1Institute of Reproductive Medicine, Medical School of Nantong University, Nantong, People's Republic of China.
Insights
The COVID-19 virus (SARS-CoV-2) negatively impacts male fertility by disrupting the HPG axis, affecting spermatogenesis and the epididymis. Vaccines are crucial for reducing infection rates and long-term risks.
Area of Science:
- Reproductive Endocrinology
- Virology
- Public Health
Background:
- The COVID-19 pandemic, caused by SARS-CoV-2, has had severe global health consequences, with higher complication and mortality rates observed in males.
- The SARS-CoV-2 receptor's expression in the male reproductive tract and links between testosterone levels and viral infection highlight potential impacts on male fertility.
Purpose of the Study:
- To review the effects of COVID-19 on the male reproductive system.
- To investigate the impact of SARS-CoV-2 vaccines on male reproductive health.
- To discuss mechanisms, asymptomatic infection effects, and long-term consequences of COVID-19 on male reproduction.
Main Methods:
- A literature search was conducted using keywords: SARS-CoV-2, COVID-19, endocrine, spermatogenesis, epididymis, prostate, and vaccine.
- Databases searched included PubMed, Web of Science, and Google Scholar.
- The review covered peer-reviewed articles and reviews published between 2020 and 2022.
Main Results:
- COVID-19 disrupts the hypothalamic-pituitary-gonadal (HPG) axis.
- Negative impacts on spermatogenesis and epididymis function were observed.
- The review explored mechanisms of viral impact and potential effects of SARS-CoV-2 vaccines on male reproductive health.
Conclusions:
- COVID-19 negatively affects male reproductive health, specifically spermatogenesis and the epididymis, necessitating further research.
- Vaccine development against SARS-CoV-2 variants is vital for reducing infection rates and mitigating long-term health risks.
Purpose:
The coronavirus 2019 (COVID-19) pandemic-caused by a new type of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-has posed severe impacts on public health worldwide and has resulted in a total of > 6 million deaths. Notably, male patients developed more complications and had mortality rates ~ 77% higher than those of female patients. The extensive expression of the SARS-CoV-2 receptor and related proteins in the male reproductive tract and the association of serum testosterone levels with viral entry and infection have brought attention to COVID-19's effects on male fertility.
Methods:
The peer-reviewed articles and reviews were obtained by searching for the keywords SARS-CoV-2, COVID-19, endocrine, spermatogenesis, epididymis, prostate, and vaccine in the databases of PubMed, Web of Science and Google Scholar from 2020-2022.
Results:
This review summarizes the effects of COVID-19 on the male reproductive system and investigates the impact of various types of SARS-CoV-2 vaccines on male reproductive health. We also present the underlying mechanisms by which SARS-CoV-2 affects male reproduction and discuss the potentially harmful effects of asymptomatic infections, as well as the long-term impact of COVID-19 on male reproductive health.
Conclusion:
COVID-19 disrupted the HPG axis, which had negative impacts on spermatogenesis and the epididymis, albeit further investigations need to be performed. The development of vaccines against various SARS-CoV-2 variations is important to lower infection rates and long-term COVID risks.
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