Covid-19 and the Testes

Jinzang

Member
This preprint explores the effects of Covid-19 on sexual hormone levels in men. The study finds that LH levels are elevated, FSH and testosterone levels are the same. And they hypothesize that Covid-19 impairs testosterone production, so the body boosts LH levels to compensate, bringing testosterone back to its previous level. Possibly there is some effect on sperm production, but this study did not look for that. As they note, the medical literature says that the testes are the tissue with the highest expression of ACE2 receptors in the body.

The full paper is downloadable at the linked url.
 
As they note, the medical literature says that the testes are the tissue with the highest expression of ACE2 receptors in the body.

Does that mean that men on long-term TRT with suppressed testicular function have lower ACE2 expression?
 
I don't know and have doubts that the question has ever been studied. Before Covid-19 I had not heard of the ACE2 receptor and I don't understand why some tissues express it more than others. Orgasm, of course, is a function of blood flow, so perhaps that is the connection.
 
I bet eventually, when CRP decreases, testicular function will improve. I wish they had said how long these men have had full recovery.
 
There's an article in SCMP about this study:

Though still preliminary and not peer reviewed, the study is the first clinical observation of the potential impact of Covid-19, the disease caused by the coronavirus, on the male reproductive system, especially among younger groups.
 

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A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

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Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038

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