20 citations
,
January 2007 in “Fertility and Sterility” A woman developed male traits from accidental contact with her husband's testosterone gel.
11 citations
,
November 2006 in “Journal of Veterinary Diagnostic Investigation” An alpaca acted like a male and couldn't have babies because of a benign tumor in its ovary that caused high testosterone levels.
12 citations
,
January 2016 in “Endocrinology, diabetes & metabolism case reports” Testosterone therapy improved physical and social health in a male with 49,XXXXY syndrome.
3 citations
,
April 2011 in “Expert Review of Dermatology” Male hair loss is caused by inactive hair follicle stem cells.
110 citations
,
April 2002 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” Dihydrotestosterone gel improved well-being and sexual function in older men without negatively affecting prostate health.
4 citations
,
December 2018 in “Case reports in endocrinology” A 63-year-old woman's male-like symptoms were caused by a rare testosterone-producing ovarian tumor, treated by removing her ovaries and fallopian tubes.
1 citations
,
October 2020 in “The Egyptian Journal of Histology” Ginseng was more effective than finasteride in treating enlarged prostate in rats.
64 citations
,
August 1999 in “The American journal of medicine” The transscrotal testosterone patch normalizes hormone levels in men with AIDS and weight loss but does not improve weight, body mass, or quality of life.
1 citations
,
August 2020 The Shaven mutation in mice affects hair growth and causes a greasy coat due to abnormal lipid content.
July 2025 in “Journal of Investigative Dermatology” 110 citations
,
January 1984 in “Progress in brain research” Gonadal hormones may influence sex differences in play fighting in animals, but their effect on human spatial behavior is unclear and needs more research.
June 1998 in “Biomedicine & Pharmacotherapy” Medical treatments like chemotherapy and radiotherapy can harm sperm production, so freezing sperm before treatment is important for men who want children later.
2 citations
,
January 2014 in “Elsevier eBooks” The document explains how sperm cells are produced, the role of testosterone in this process, and how toxins can reduce sperm count and fertility.
12 citations
,
February 2017 in “International journal of developmental neuroscience” Female guinea pigs exposed to less allopregnanolone before birth showed more anxiety-like behavior.
September 2024 in “International Journal of Molecular Sciences” High doses of testosterone disrupt hormone levels and receptor expression in the uterus, affecting fertility.
November 2021 in “Khyber Medical University Journal” A rare ovarian tumor caused a postmenopausal woman to develop male-like features, which improved after surgery.
8 citations
,
October 1988 in “Clinics in dermatology” The best animal model for studying male-pattern baldness is the stumptailed macaque, not rats or mice.
1 citations
,
September 2013 in “Fertility and Sterility” Finasteride discontinuation increases sperm count in men.
36 citations
,
May 2011 in “The Journal of Clinical Endocrinology & Metabolism” Treatment with a hormone agonist can reduce excess male hormones in postmenopausal women without surgery.
April 1981 in “Pediatric research” Copper treatments increase copper in all tissues, but brindled female mice accumulate much more copper in their kidneys without clinical effects, unlike brindled male mice where brain copper deficiency is clinically significant.
32 citations
,
July 2017 in “Clinical and Experimental Dermatology” Finasteride effectively treats hair loss in transgender men with few side effects.
1 citations
,
August 2015 in “AACE Clinical Case Reports” A new gene mutation causes complete androgen insensitivity in a 16-year-old with a female appearance.
4 citations
,
June 2005 in “Andrology” A woman's diabetes improved after removing ovarian tumors that caused high testosterone levels.
June 2018 in “The Journal of Sexual Medicine” Gray-scale ultrasound effectively detects erectile tissue fibrosis in young men with erectile dysfunction after using finasteride.
20 citations
,
August 2010 in “The Journal of Urology” Ezetimibe effectively reduces prostate size in cases of benign prostatic hyperplasia.
December 2025 in “Microscopy and Microanalysis” Lycopene protects against testicular damage caused by finasteride.
October 2024 in “Journal of the Endocrine Society” A rare ovarian tumor caused high testosterone in a postmenopausal woman, resolved by surgery.
3 citations
,
February 2018 in “Human Reproduction” A man with testotoxicosis was fertile despite low FSH levels, suggesting high testosterone may allow sperm production without FSH.
1 citations
,
January 1988 Topical DHEA safely increases skin oil production.
10 citations
,
February 2008 in “International Journal of Andrology” A combination of nanomilled oral testosterone and dutasteride normalized testosterone levels in men with low testosterone and is safe for short-term use.