Androgenetic alopecia, or hair loss, is caused by a mix of genetics, hormones, and environment, where testosterone affects hair growth and causes hair to become smaller and grow for a shorter time.
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April 2021 in “Journal of The American Academy of Dermatology” Some overweight or obese men with long-term frontal fibrosing alopecia may have abnormal sex hormone levels.
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June 2010 in “The journal of sexual medicine” Testosterone undecanoate increases lean mass and causes various physical changes in female-to-male transsexuals.
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January 2011 in “Sexual Development” Intersex frogs have different brain gene activity related to sex and thyroid hormones.
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July 2015 in “The Journal of Membrane Biology” Testosterone increases certain proteins in the uterus, reducing fluid volume.
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April 2016 in “Journal of Investigative Dermatology” KB2115 (eprotirome) can safely extend the hair growth phase without damaging cells or changing hair color.
16 citations
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August 2007 in “Histopathology” A woman's rare adrenal tumor caused high testosterone and cortisol levels, which normalized after the tumor was removed.
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June 2022 in “Transgender Health” Oocyte retrieval is possible for transgender men on testosterone therapy without affecting fertility outcomes.
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March 2017 in “Arteriosclerosis, thrombosis, and vascular biology” Testosterone helps prevent skin damage in males by acting through both estrogen and androgen pathways.
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January 2020 in “in Vivo” Testosterone changes important cell communication proteins in pregnant rats' uteruses, which might affect pregnancy success.
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July 2022 in “Han'gug sigpum yeong'yang gwahag hoeji/Journal of the Korean society of food science and nutrition” Eurycoma longifolia extract may help increase testosterone levels and reduce andropause symptoms.
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January 2010 in “uO Research (University of Ottawa)” Atrazine and finasteride disrupt hormone signaling and affect frog development.
November 2022 in “Journal of Investigative Dermatology” Growth hormone-releasing hormone (GHRH) boosts hair growth and human scalp hair follicles have their own growth hormone system.
January 2024 in “Journal of Medicinal Food” Rambutan extract can help reverse hair loss caused by testosterone.
March 2015 in “CRC Press eBooks” Telogen effluvium is a type of hair loss in women caused by many factors, and iron and thyroid tests are recommended for diagnosis.
March 2014 in “Journal of The American Academy of Dermatology” Vitamin D deficiency is common in temporary hair loss, and stress is often a suspected cause.
162 citations
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April 2016 in “The Lancet Diabetes & Endocrinology” Testosterone therapy in transgender men has both desired effects like increased muscle mass and potential health risks such as higher cardiovascular risk.
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October 2005 in “European journal of pharmaceutics and biopharmaceutics” Polymers increased skin permeation and stability of steroid hormones in liposomal formulations.
February 2018 in “Zenodo (CERN European Organization for Nuclear Research)” High doses of Lagenaria siceraria fruit powder lower FSH and LH hormone levels in male rats.
October 2023 in “Indian Journal of Ophthalmology - Case Reports” Kallmann syndrome can cause eye issues and other health problems, requiring various treatments.
5 citations
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January 1993 in “Hormone and Metabolic Research” DHEA and DHEA-S help maintain underarm hair in older women.
April 2018 in “The journal of investigative dermatology/Journal of investigative dermatology” Androgens increase growth factors in skin cells, which may lead to acne.
7 citations
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June 1989 in “Steroids” Researchers successfully made new compounds for hormone level tests, but one attempt led to an unexpected product, correcting a past error.
January 2024 in “Biology of sex differences” Dihydrotestosterone makes arteries stiffer in female mice by reducing estrogen receptor expression.
September 1997 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” Blocking IL-1 could help treat some hair loss conditions; alopecia affects liver detox systems; spironolactone is better than finasteride for female hair growth; focusing on the catagen hair phase could lead to new alopecia treatments.
37 citations
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May 2018 in “Transgender health” Oral estradiol works for many transgender women but needs personalized dosing and monitoring.
18 citations
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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.
12 citations
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February 2020 in “The Journal of Clinical Endocrinology & Metabolism” More body hair in young Australian women is linked to higher androstenedione levels.
12 citations
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March 2018 in “Medicine” A postmenopausal woman's hirsutism and high testosterone levels improved after surgery for an ovarian tumor not seen on ultrasound.
April 2026 in “Open MIND” Microbes in the small intestine may cause Post-Finasteride Syndrome symptoms.