January 2024 in “Inflammation and regeneration” Th22 cells are essential for Tβ15-induced hair growth in mice.
October 2022 in “Linköping University medical dissertations” The method shows hair testosterone levels reflect those in saliva, but are affected by various factors and may indicate a risk for heart attack.
6 citations
,
November 1997 in “International Journal of Dermatology” Women with acne and irregular periods had higher active testosterone levels, which could suggest the usefulness of antiandrogen treatment.
10 citations
,
February 2008 in “Photochemistry and photobiology” Vitamin D receptor can control the hairless gene linked to hair loss even without vitamin D.
24 citations
,
September 2014 in “PloS one” Thyroid hormone receptors are essential for hair growth and wound healing.
September 2024 in “Pediatrics in Review” Parental support and gender-affirming care are crucial for the mental health of transgender adolescents.
166 citations
,
July 1999 in “American Journal Of Pathology” The hairless (hr) gene is essential for normal hair follicle function and its mutation leads to hair loss.
57 citations
,
February 1983 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” Dihydrotestosterone increases the activity of an enzyme in pubic skin cells that converts testosterone to dihydrotestosterone.
35 citations
,
November 1989 in “Journal of steroid biochemistry/Journal of Steroid Biochemistry” Epitestosterone may act as a weak antiandrogen and can inhibit an enzyme involved in testosterone metabolism.
28 citations
,
January 2012 in “Biological & pharmaceutical bulletin” Hairless protein can both repress and activate vitamin D receptor functions, affecting gene regulation.
66 citations
,
October 1987 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” Measuring androstanediol glucuronide in blood is useful for assessing and tracking treatment in women with excessive hair growth.
9 citations
,
November 2013 in “Gynecological Endocrinology” A woman had high testosterone due to an ovarian issue, which was fixed with surgery.
June 2019 in “Journal of Akhtar Saeed Medical & Dental College” Prolactin levels are higher in women with hirsutism but don't relate to its severity.
October 2024 in “Journal of the Endocrine Society” Ovarian stromal hyperplasia can cause high testosterone in postmenopausal women and is treated by removing the ovaries.
December 2020 in “Journal of Drugs in Dermatology” The document concludes that more research is needed to confirm if blood tests for things like iron and vitamin D are helpful for hair loss from Telogen effluvium.
8 citations
,
March 2010 in “Gynecological Endocrinology” Free Testosterone Index, bioavailable testosterone, and androstenedione are the most accurate for diagnosing excess male hormones in PCOS.
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.
2 citations
,
March 2003 in “Endocrine Practice” The woman's symptoms and tests suggest her adrenal glands are producing too many male hormones.
4 citations
,
April 1986 in “Cancer Letters” GSH-T levels in hair follicles are similar in smokers and non-smokers and don't increase with certain treatments.
March 2025 in “Dermatology Online Journal” Dermatologists should guide transgender patients on effective hair growth and loss treatments during hormone therapy.
April 2023 in “Journal of The American Academy of Dermatology” Some drugs linked to growth hormones may increase the chance of hair loss in women.
9 citations
,
January 2017 in “Annals of Dermatology” The study found genetic differences related to hair development that may explain hair loss in a patient with Trichorhinophalangeal syndrome type I.
7 citations
,
January 2002 in “Biological Trace Element Research” Children with pituitary dwarfism have higher zinc and copper, lower manganese, and similar iron levels in hair compared to normal children.
25 citations
,
September 2015 in “Clinical Endocrinology” Using 17-hydroxyprogesterone levels to diagnose nonclassic congenital adrenal hyperplasia can result in many incorrect diagnoses.
6 citations
,
October 2011 in “ISRN Ophthalmology” Higher testosterone and dehydroepiandrosterone sulphate levels may help diagnose meibomian gland dysfunction.
229 citations
,
March 2001 in “European journal of endocrinology” Testosterone levels influence male behaviors and physical traits, but this relationship is complex and influenced by both internal and external factors.
27 citations
,
November 2000 in “Journal of Veterinary Medicine Series B” Iodine deficiency in lambs causes poor growth, less wool, and delayed sexual maturity.
July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Thymic stromal lymphopoietin (TSLP) promotes hair growth by stimulating specific skin cells.
3 citations
,
January 1988 in “PubMed” High prolactin levels can cause skin and hair symptoms similar to those caused by hormone imbalances.
19 citations
,
May 2020 in “American journal of men's health” Testosterone therapy helps boys with hormone deficiencies develop normal male characteristics and grow properly.