186 citations
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February 1980 in “Clinical Endocrinology” During puberty, hormone levels rise, with early increases in some steroids and most menstrual cycles becoming regular by six years after menarche.
July 2025 in “Scientific Reports” Serotonin helps hair grow by activating certain cells.
January 2006 in “Advances in developmental biology” The Hairless gene is crucial for healthy skin and hair growth.
1 citations
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June 2024 in “Rehabilitation Medicine” Higher cortisol and cortisone levels in hair may predict mood disorders after a stroke.
26 citations
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February 2022 in “Journal of pineal research” Melatonin affects skin and hair color and protects skin cells, with potential benefits for hair growth and skin health.
35 citations
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October 2017 in “JAMA dermatology” Children with alopecia areata should only have thyroid screening if they have Down syndrome, a history of atopy, family history of thyroid disease, or signs of thyroid problems.
30 citations
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October 2016 in “Current research in translational medicine” Hair follicles on the scalp interact with and respond to the nervous system, influencing their own behavior and growth.
3 citations
,
July 2019 in “Experimental Dermatology” Hair loss patients may have different polyamine levels in various scalp areas.
13 citations
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June 2020 in “Scientific reports” Melatonin stimulates the skin components of ram's scrotum during their non-breeding season.
30 citations
,
October 2021 in “Scientific Reports” Inhibiting glycogen metabolism can promote hair growth.
May 2024 in “Scientific Reports” Androgen receptors in the mouse brain may explain cognitive and mood changes in prostate cancer treatment.
11 citations
,
April 2023 in “Skin Health and Disease” Psychological stress can worsen skin conditions like psoriasis and acne.
1 citations
,
April 2023 in “Journal of Animal Science and Biotechnology” Melatonin helps grow more secondary hair follicles in young goats, improving cashmere production.
7 citations
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March 2017 in “Medical Hypotheses” Aquaporins could be new drug targets for treating polycystic ovary syndrome.
82 citations
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February 1989 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” A three-month treatment with a GnRH agonist significantly lowered androgen levels and 5α-reductase activity in men with benign prostatic hyperplasia.
21 citations
,
September 2021 in “Fertility and Sterility” A blood test level of 3.2 ng/mL of Antimüllerian hormone is good for identifying polycystic ovarian morphology in European women aged 25–45.
39 citations
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November 2021 in “Clinical Endocrinology” Testosterone replacement is recommended for men with low testosterone levels and symptoms of hypogonadism.
4 citations
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February 1953 in “Experimental biology and medicine” Adrenocortical extract is less effective at stopping hair growth in young rats than in adult rats.
1 citations
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August 2012 in “Journal der Deutschen Dermatologischen Gesellschaft” A woman's hyperandrogenism was caused by a genetic mutation leading to non-classic adrenogenital syndrome.
14 citations
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June 2001 in “Endocrinology” Prolactin affects when mice shed and grow hair.
51 citations
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January 2004 in “Domestic animal endocrinology” Melatonin implants and long daylight hours alter the timing of hormone release and hair growth in mouflon sheep.
22 citations
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June 2020 in “iScience” Sox21 is crucial for tooth development and enamel formation by preventing cells from changing into a different type.
July 2012 in “Medical Hypotheses” Artemis dysfunction might cause hair loss through telomere shortening.
October 2022 in “The Korean Journal of Physiology and Pharmacology” Targeting the PGD2-DP2 pathway may help treat hair loss.
November 2023 in “Curēus” Melatonin may help manage PCOS by improving insulin sensitivity, hormone balance, and mood.
1 citations
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January 2021 in “Acta dermatovenerologica Alpina, Pannonica et Adriatica (Tiskana izd.)” High prolactin levels might be linked to hair loss in autoimmune thyroid disease, but more research is needed.
January 2020 in “ScholarWorks (Central Washington University)” NAG-1 may help prevent some metabolic issues related to PCOS.
April 2019 in “Journal of the Endocrine Society” Glucocorticoid treatment lowered androgen levels but didn't improve hirsutism or ovulation and caused weight gain.
109 citations
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December 1998 in “The Journal of Dermatology” Manipulating the catagen and telogen phases of hair growth could lead to treatments for hair disorders.
102 citations
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July 2020 in “International journal of molecular sciences” Hormones like testosterone and estrogen significantly affect hair growth and structure.