8 citations
,
January 1986 in “Journal of hepatology” Men with liver cancer have higher levels of a specific testosterone byproduct in their liver and blood, despite overall lower male hormone levels.
7 citations
,
January 2021 in “The Journal of Sexual Medicine” Testosterone with dutasteride improves muscle strength and body composition in trans men.
July 2012 in “The Journal of Urology” Testosterone increases muscle mass regardless of DHT conversion blocking.
19 citations
,
March 2004 in “The Journal of Clinical Endocrinology & Metabolism” Testosterone and letrozole treatment speeds up puberty in boys with delayed development.
May 2019 in “bioRxiv (Cold Spring Harbor Laboratory)” Testosterone significantly affects urination differences between male and female mice.
4 citations
,
December 2014 in “PubMed” Pre-operative hormone treatment for hypospadias surgery might improve outcomes, but more research is needed to confirm.
8 citations
,
May 1982 in “Journal of Endocrinology/Journal of endocrinology” Rat skin takes up and processes testosterone differently than other organs, with testosterone being more important for the skin than its metabolite 5α-DHT.
7 citations
,
January 1989 in “Archives of Dermatological Research” The side gland of Suncus murinus is a good model for studying human sebaceous glands.
16 citations
,
January 2017 in “Asian journal of andrology/Asian Journal of Andrology” Men who start puberty later may have lower sperm quality and different hormone levels in adulthood.
February 2017 in “The Journal of Sexual Medicine” Finasteride for hair loss can cause erectile dysfunction due to tissue fibrosis.
12 citations
,
March 2010 in “Asian Journal of Animal and Veterinary Advances” Young and adult hamsters both respond similarly to testosterone and finasteride treatments, but young hamsters aren't good for testing the inhibitory activity of a specific enzyme.
2 citations
,
April 2007 in “Journal of Labelled Compounds and Radiopharmaceuticals” The conclusion is that tritium-labeled testosterone metabolites can be made and are better converted into dihydrotestosterone in skin cells than in prostate tissue.
6 citations
,
January 2016 in “International Journal of Trichology” The conclusion is that more hair loss (androgenetic alopecia) is linked to larger prostate size, suggesting hair loss could be an early sign of benign prostatic hyperplasia.
October 2025 in “Journal of the Endocrine Society” Early physical exams are crucial for timely Klinefelter syndrome diagnosis.
June 2021 in “Archives of Advances in Biosciences” Finasteride reduces sperm count and quality and alters hormone levels in mice.
April 1974 in “Pediatric Research”
12 citations
,
December 2017 in “Scientific reports” The new test can measure very small amounts of testosterone in hair, and grinding the hair up first gives more accurate results.
June 2011 in “Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT)” Estrogens and androgens are crucial for male fertility.
6 citations
,
September 2020 in “African Journal of Urology” Prostate size varies by ethnic group, age, residence, and blood glucose, but not by body measurements or fat.
11 citations
,
November 1982 in “British journal of dermatology/British journal of dermatology, Supplement” Testosterone and some of its forms can strongly stimulate oil gland growth in skin.
June 2022 in “Journal of Experimental Biology and Agricultural Sciences” Higher testosterone harms sperm motility, while higher estradiol improves sperm survival.
January 1977 in “Case Reports in Medicine” Steroid cell tumors in the ovary are rare, can produce testosterone causing symptoms, and are mainly treated with surgery.
December 2024 in “Reports of Vinnytsia National Medical University” Men with alopecia areata have different body proportions, with shorter legs and longer upper bodies.
April 2019 in “Journal of the Endocrine Society” A woman's severe male-like symptoms were caused by a rare, benign tumor in her ovary that produced male hormones.
1 citations
,
January 2023 in “International journal of urology” Low zinc levels are linked to low testosterone but not to sexual problems.
June 2018 in “The Journal of Sexual Medicine” Finasteride helps female-pattern hair loss.
1 citations
,
May 2025 in “International Journal of Impotence Research” Older age and low testosterone increase the risk of kidney stones in men.
53 citations
,
July 2014 in “American Journal of Physiology-Endocrinology and Metabolism” Testosterone boosts red blood cell production and changes iron metabolism without needing dihydrotestosterone.
10 citations
,
May 2017 in “Symmetry” Higher androgen levels are linked to less asymmetry in !Kung San males.