October 2020 in “Journal of Pakistan Association of Dermatology” Finasteride appears safe for long-term sperm concentration, but more research is needed for clear conclusions.
November 2025 in “bioRxiv (Cold Spring Harbor Laboratory)” Lateral plate mesoderm helps create skin and amnion-like tissues for studying development and therapies.
October 2018 in “bioRxiv (Cold Spring Harbor Laboratory)” Neuronatin is found in various cells of rat tissues and has a unique location in sperm cells.
September 2021 in “Fertility and Sterility” Older men have different fertility histories and factors affecting fertility, suggesting they may benefit from earlier fertility evaluations.
10 citations
,
February 2019 in “Toxicological Sciences” Finasteride exposure affects gene expression and anogenital distance in male rat fetuses.
26 citations
,
January 2014 in “ALTEX” Pesticides can cause reproductive and adrenal health issues.
December 2022 in “Journal of Medical Case Reports” A 20-year-old woman was found to have a rare ovarian tumor causing symptoms like acne and a low-pitched voice, which disappeared after the tumor was removed.
26 citations
,
January 1983 in “PubMed” Trichothiodystrophy involves brittle hair due to low sulfur amino acids, not a transport defect.
28 citations
,
January 1991 in “Reproductive Toxicology” Finasteride temporarily lowers male rat fertility without affecting libido.
70 citations
,
March 2016 in “Urologic Clinics of North America” The document explains how the male reproductive system works, its role in making testosterone, and how conditions like obesity can disrupt it, leading to low testosterone and fertility issues.
June 2003 in “Obstetrical & Gynecological Survey” Postmenopausal ovary stromal cells have a unique makeup and limited steroid production, suggesting androgens come from the adrenal gland.
49 citations
,
March 2018 in “Toxicological sciences” Low doses of mixed chemicals cause permanent reproductive malformations in male rats.
47 citations
,
January 2021 in “Fertility and Sterility” COVID-19 might affect male fertility, but more research is needed to understand the full impact.
26 citations
,
July 2019 in “Fertility and Sterility” Reproductive gynecologists are the main referrers for male infertility evaluations in North America.
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.
7 citations
,
September 2022 in “Communications biology” Omega-6 fats in certain cells boost male hormone production.
38 citations
,
May 1971 in “Clinical genetics” A specific metabolite, not a receptor protein, triggers the production of certain kidney enzymes, but this process is disrupted in mice with a mutation causing testicular feminization.
Finasteride causes reproductive malformations in male rats.
23 citations
,
October 2015 in “Andrology” New male hormonal contraceptives show promise but need more research on long-term effects and funding for larger trials.
38 citations
,
December 2010 in “Fertility and Sterility” Finasteride may cause male infertility, stopping it can help.
Check hormone levels and blood counts before surgery in dogs with abnormal blood cell counts.
104 citations
,
June 2020 in “Journal of Endocrinology” Hyperandrogenism and insulin resistance in PCOS-like rats can lead to pregnancy complications due to increased cell death in the uterus and placenta.
July 2024 in “Reproductive health of woman” Girls conceived via assisted reproductive technologies show early puberty signs and larger ovaries.
April 2026 in “ACS Applied Materials & Interfaces” Sper-12 nanoparticles may help treat hair loss by delivering siRNA to target androgen receptors.
9 citations
,
March 2023 in “Chemosphere” Certain pesticides may delay sexual maturity in teenage boys.
February 2024 in “Animals” Giving selenium yeast to pregnant goats leads to better hair growth and cashmere quality in their babies.
November 2025 in “Archiv für Pathologische Anatomie und Physiologie und für Klinische Medicin” Sporadic trichoblastic neoplasms generally don't recur or spread, with one case showing a specific genetic fusion.
37 citations
,
January 2006 in “Carcinogenesis” Antizyme slows skin tumor growth by reducing cell growth in mice.
305 citations
,
March 2008 in “AJP Endocrinology and Metabolism” SSAT is a key enzyme affecting cell growth and metabolism, with potential but risky use in disease treatment.
January 2023 in “Seven Editora eBooks” A rare ovarian tumor was diagnosed in a woman from North Brazil, and surgery is the preferred treatment.