April 2011 in “Medical Journal of Tabriz University of Medical Sciences and Health Services” Many patients with Alopecia Areata have underlying autoimmune disorders, especially thyroid issues.
25 citations
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December 2018 in “Journal of Investigative Dermatology” TRPV4 slows hair growth by affecting hair follicle cells.
November 1993 in “PubMed” Hirsutism, excessive male-pattern hair in women, can be caused by high androgens or skin sensitivity, diagnosed by testosterone levels, and treated with hair removal and hormone therapy.
15 citations
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January 2012 in “International journal of trichology” The HairCheck® device is effective for measuring hair loss and growth in people with alopecia.
January 2009 in “The Chinese Journal of Dermatovenereology” Higher doses of Tribulus terrestris extract increase MC-1R expression in mouse hair follicles.
32 citations
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February 2024 in “Growth Hormone & IGF Research” Dihydrotestosterone (DHT) stops hair growth in mice by lowering a growth factor important for hair.
30 citations
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January 2009 in “Nuclear Receptor Signaling” Hairless protein is crucial for healthy skin and hair, and its malfunction can cause hair loss.
33 citations
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May 2006 in “Journal of Investigative Dermatology” PTHrP and its receptor can control blood vessel growth and hair development in mouse skin.
1 citations
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August 2013 in “PubMed” Testosterone changes reduce thyroxin levels in rats.
46 citations
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November 2014 in “The Journal of Clinical Endocrinology & Metabolism” Men with isolated hypogonadotropic hypogonadism have partial steroid deficiencies, while those with panhypopituitarism have severe deficiencies.
October 2024 in “Journal of the Endocrine Society” Managing recurrent painless thyroiditis is challenging and should be personalized based on episode frequency, severity, symptoms, and patient preferences.
February 2024 in “Folia Medica” Platelet-rich plasma treatment is effective for hair loss in patients regardless of their thyroid antibody levels.
22 citations
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January 1992 in “PubMed” Higher CSF 5-HIAA levels may predict better response to serotonin re-uptake inhibitors in trichotillomania.
19 citations
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August 1999 in “European journal of endocrinology” The study concluded that testing hormone levels after stimulation is not reliable for identifying carriers of 21-hydroxylase deficiency; genetic testing is necessary.
11 citations
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September 2012 in “Journal of obstetrics and gynaecology Canada” Testosterone therapy seems safe for short-term use in postmenopausal women with low sexual desire, but more research on long-term effects is needed.
April 2020 in “Journal of the Endocrine Society” Hair cortisol measurement can help diagnose and monitor Cushing’s disease.
9 citations
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October 1991 in “Archives of Dermatological Research” Testosterone, DHT, and estradiol significantly affect hair cell growth.
66 citations
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July 2010 in “Journal of Proteome Research” Trichohyalin may trigger the immune response causing alopecia areata.
1 citations
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April 2015 in “Current problems in dermatology” The document concludes that the trichogram is a useful tool for diagnosing hair loss and suggests semi-organ cultures for practical trichological research.
6 citations
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April 1996 in “Journal of histochemistry and cytochemistry/The journal of histochemistry and cytochemistry” TGF-alpha is present in sheep and ferret skin and may affect hair growth without directly stimulating cell proliferation.
12 citations
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March 2000 in “Clinical Chemistry” Chronic DHEA supplementation slightly increases testosterone in hair but stays within safe limits.
15 citations
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April 2022 in “Ginekologia Polska” Higher thyroid hormone levels may be linked to certain types of polycystic ovary syndrome.
October 2025 in “Journal of the Endocrine Society” Hormone Replacement Therapy improves skin health in postmenopausal women by boosting collagen and hydration.
November 2025 in “Вопросы современной педиатрии” Treating Netherton syndrome with growth hormone and dupilumab improves growth safely.
September 2016 in “Journal of Dermatological Science” A gene mutation worsens skin irritation in mice due to a lack of certain fats.
October 2014 in “Archives of Disease in Childhood” Growth hormone therapy can improve symptoms and growth in children with Vitamin-D Dependent Rickets Type-2.
4 citations
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April 1983 in “The Journal of Dermatology” A 15-year-old girl with hypothyroidism had excess hair and skin issues due to blocked hair follicles.
55 citations
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July 1997 in “Clinical Endocrinology” Growth hormone therapy boosts androgen effects on skin in men.
July 2021 in “British Journal of Dermatology” Low testosterone levels may contribute to female pattern hair loss in men.
10 citations
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January 1987 in “PubMed” Thyroid hormone and epidermal growth factor affect hair angle, tooth eruption, and ear development in rats.