October 2024 in “Journal of the Endocrine Society” Estrogen alone can lower testosterone in some transfeminine people.
2 citations
,
August 2013 in “The Lancet. Diabetes & endocrinology” The FDA rejected a testosterone drug again due to safety concerns.
July 2026 in “Veterinary Medicine and Science” Nigella sativa oil with quercetin reduces testosterone-induced testicular damage and stress in rats.
18 citations
,
February 2016 in “The Journal of Clinical Endocrinology and Metabolism” Advancements in male reproductive medicine are ongoing, but more research and improved treatments are needed in several areas.
December 2025 in “IP Indian Journal of Clinical and Experimental Dermatology” Androgenetic alopecia in males is linked to significant psychological distress, highlighting the need for both mental and dermatological care.
April 2015 in “Reactions Weekly” Finasteride toxicity information is limited, poor quality, and biased.
13 citations
,
February 2006 in “Analytical Biochemistry” New method accurately measures finasteride in tablets.
November 2023 in “Acta scientific pharmaceutical sciences” Different methods accurately measure Finasteride in medicines and body fluids.
20 citations
,
January 2003 in “Treatments in Endocrinology” Testosterone therapy can help improve mood, sexual function, and bone health in women with low androgen levels, but more research is needed to establish safe and effective guidelines.
4 citations
,
January 2002 in “Indian Journal of Pharmaceutical Sciences” A new method accurately measures finasteride in tablets using color change and light absorption.
April 2019 in “Journal of the Endocrine Society” A woman's severe insulin resistance improved with treatment, but she still had high testosterone levels due to ovarian issues.
40 citations
,
November 2011 in “American Journal of Human Biology” Stress from being transgender is linked to higher blood pressure at night and more inflammation, which may affect heart health.
1 citations
,
October 2022 in “Springer eBooks” Testosterone is key for male sexual function, and treating hormone imbalances can improve sexual issues.
6 citations
,
July 2018 in “Steroids” Testosterone changes how certain channels work in male rat reproductive tracts, affecting fertility-related fluid balance.
March 2009 in “The Journal of Urology” Low dose finasteride causes only minor changes in PSA levels in men over 50 with BPH.
Lower DHT and higher testosterone levels increase brain activation but don't change behavior in heavy drinkers.
24 citations
,
February 2007 in “Hormone and metabolic research” The substance MK386 effectively blocked testosterone conversion and reduced cell growth in certain skin cells, but inhibiting 5α-reductase alone may not greatly improve acne.
Finasteride and testosterone are the drugs most linked to male infertility, but many other potential drugs may be under-reported.
19 citations
,
April 2019 in “Journal of Midwifery & Women's Health” Transmasculine individuals on testosterone therapy need tailored contraception and fertility advice due to unique risks and benefits of each contraceptive method.
January 2024 in “Experimental and clinical endocrinology & diabetes” A low-glycemic diet improved hormone levels and well-being in overweight women with high androgen levels.
2 citations
,
December 2017 in “Theriogenology” Testosterone increases acidification in the vas deferens by up-regulating V-ATPase.
3 citations
,
October 1994 in “Journal of Labelled Compounds and Radiopharmaceuticals” Scientists made a carbon-14 labeled version of a drug with a 48% yield and over 99% purity.
135 citations
,
March 1984 in “Fertility and sterility” Higher levels of unbound testosterone are linked to increased insulin resistance, especially in women with polycystic ovary syndrome.
January 2005 in “Yaowu fenxi zazhi” The method accurately measures finasteride in human plasma quickly and reliably.
3 citations
,
October 2021 in “Clinica Chimica Acta” Hormone levels in hair vary across the head, with the highest concentration of a key hormone linked to hair loss at the top.
July 2021 in “International Journal of Community Medicine and Public Health” Men with type 2 diabetes often have low testosterone and signs of hypogonadism, especially if they are overweight.
3 citations
,
February 2019 in “Molecular genetics and metabolism” The combination of tadalafil and finasteride improves urinary symptoms and erectile function in men with enlarged prostates.
20 citations
,
June 2017 in “Hormone Molecular Biology and Clinical Investigation” Long-term use of dutasteride for enlarged prostate may worsen blood sugar, cholesterol, and erectile dysfunction.
The FDA did not approve a testosterone drug because of safety concerns.
169 citations
,
November 2009 in “The Journal of Clinical Endocrinology & Metabolism” Prepubertal girls have higher sex steroid levels than boys, possibly leading to earlier puberty.