10 citations
,
November 2018 in “Developmental Psychobiology” Hair can effectively measure DHEA and testosterone levels in children.
October 2025 in “Česká gynekologie” Hyperprolactinemia is the most common cause of secondary amenorrhea, followed by drug use.
October 2022 in “The Korean Journal of Physiology and Pharmacology” Targeting the PGD2-DP2 pathway may help treat hair loss.
January 2022 in “Figshare” Melatonin affects when and how goat hair follicle genes turn on and off during growth cycles.
Hair follicles supply a crucial brain development protein to the brain via platelets.
115 citations
,
May 2016 in “Clinical Medicine & Research” TSH is usually the only test needed to check thyroid function in primary care.
53 citations
,
July 1981 in “Journal of Endocrinology” α-MSH and cyclic AMP boost melanin production, while cyclic GMP and melatonin reduce it.
21 citations
,
March 2019 in “Experimental Dermatology” Immune cells around hair follicles help control hair growth and could be targets for treating hair disorders.
4 citations
,
August 2021 in “Frontiers in Cell and Developmental Biology” Stress can cause hair loss by affecting nerve-related hair growth, and noradrenaline might help prevent this.
4 citations
,
November 2018 in “Endocrinology, Diabetes & Metabolism Case Reports” GnRH analogue can help diagnose ovarian causes of high testosterone in postmenopausal women when scans don't show the cause.
7 citations
,
December 2021 in “Archives of Dermatological Research” Adiponectin reduces hair pigmentation and affects hair growth signals.
April 2023 in “Journal of Investigative Dermatology” The study found that aging hair follicle stem cells change behavior, leading to hair loss, but drugs targeting these cells may help restore hair growth.
16 citations
,
February 1978 in “Journal of steroid biochemistry/Journal of Steroid Biochemistry” Dihydrotestosterone specifically binds to hamster sebaceous glands, with a higher affinity than testosterone.
October 2022 in “Hair Transplantation” Hair disorders are caused by genetics, environment, hormones, or inflammation, and treatments focus on normalizing hair growth and density.
113 citations
,
September 2005 in “Journal of Investigative Dermatology” Applying a special compound can promote hair growth without harmful side effects.
51 citations
,
March 2004 in “Hormone and Metabolic Research” Women with Polycystic Ovary Syndrome have higher levels of the hormone ghrelin, which may be linked to the cause of the condition.
8 citations
,
April 2014 in “Anti-Cancer Drugs” A hormone linked to collagen helps hair grow back in mice after chemotherapy, and may also prevent bone loss.
13 citations
,
October 2013 in “The Journal of Dermatology” Cepharanthine may help hair growth by increasing IGF-I in scalp cells.
101 citations
,
March 2019 in “Cell Stem Cell” Certain immune cells in the skin release a protein that stops hair growth by keeping hair stem cells inactive.
May 2017 in “DOAJ (DOAJ: Directory of Open Access Journals)” Using GnRHa agonists helps diagnose and treat ovarian hyperthecosis when surgery isn't possible.
January 2022 in “Figshare” Melatonin affects when and how goat hair follicle genes turn on and off during growth cycles.
1 citations
,
February 2022 in “Case reports in endocrinology” An unusual growth of Leydig cells in a woman's ovaries caused her excessive hair growth, which was treated successfully with surgery.
January 1987 in “Journal of steroid biochemistry/Journal of Steroid Biochemistry” Norethisterone (jenapharm) therapy is effective for endometrial cancer.
August 2019 in “Journal of archaeological science: Reports/Journal of archaeological science: reports” Ancient hair can preserve hormones, revealing health and fertility insights.
October 2025 in “Journal of the Endocrine Society” A rare pituitary tumor in an 18-year-old male caused hormonal issues and vision loss, requiring surgery and further treatment.
2 citations
,
October 1999 in “Annals of the New York Academy of Sciences” Melatonin and cortisol affect mink winter hair growth, but β-endorphin levels do not.
40 citations
,
April 2014 in “Genes & Development” Hormones during pregnancy and lactation keep skin stem cells inactive, preventing hair growth.
30 citations
,
March 1980 in “European Journal of Endocrinology” Adrenal androgens are important for puberty and are influenced by genetics.
49 citations
,
March 2004 in “Journal of Investigative Dermatology” The hHa7 gene is regulated by androgens in certain body hair, not scalp hair.
19 citations
,
November 2017 in “General and comparative endocrinology” BMP2 and BMPR-IA may stop hair growth while Noggin may encourage it in yak skin.