Applying thyroid hormones to the scalp can help hair grow.
January 2020 in “Research Square (Research Square)” Stress hormone CRF causes hair loss and stops hair cell growth.
January 2008 in “HAL (Le Centre pour la Communication Scientifique Directe)” The mutant HR bmh protein affects hair follicle formation by failing to repress vitamin D receptor activity.
135 citations
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October 1997 in “Journal of biological chemistry/The Journal of biological chemistry” Trichohyalin is modified by enzymes to form strong structures in hair cells.
34 citations
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May 1987 in “European Journal of Pediatrics” Buserelin safely and effectively suppresses early puberty, potentially improving final height.
January 2002 in “Agritrop (Cirad)” The hr gene is linked to hair loss in Valle del Belice sheep.
44 citations
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March 1947 in “Endocrinology” Thiourea compounds affect hair growth and pigmentation in black rats.
39 citations
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February 1990 in “The journal of cell biology/The Journal of cell biology” Trichohyalin, a hair follicle protein, has a part with repeating patterns of 23 amino acids.
January 2024 in “Inflammation and regeneration” Th22 cells are essential for Tβ15-induced hair growth in mice.
34 citations
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March 2007 in “Biochemical and Biophysical Research Communications” Thioredoxin reductase 1 does not affect glucocorticoid receptor activity in hair follicle cells.
14 citations
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December 2021 in “International journal of molecular sciences” Growth hormone levels affect hair growth and loss, with too much causing excess hair and too little leading to hair loss.
15 citations
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May 2017 in “Journal of Cellular Biochemistry” The hairless protein is important for skin, hair, and may influence cancer development.
137 citations
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September 2005 in “Proceedings of the National Academy of Sciences of the United States of America” The HR protein helps hair grow by blocking a hair growth inhibitor, aiding in hair follicle regeneration.
8 citations
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March 1942 in “Journal of Endocrinology” Thyroid hormone treatments help thyroidectomized rats grow normally.
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.
1 citations
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September 2023 in “eLife” TLR2 is important for hair growth and can be targeted to treat hair loss.
14 citations
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February 2015 in “Journal of the American Animal Hospital Association” Dogs exposed to their owners' hormone therapy developed hair loss, but symptoms resolved after stopping the therapy.
67 citations
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January 2020 in “Cellular & Molecular Immunology/Cellular & molecular immunology” Tissue-resident memory T cells can protect against infections and cancer but may also contribute to autoimmune diseases.
30 citations
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March 2015 in “PLoS ONE” Thyroxine can adjust the body's peripheral clock, potentially helping treat clock-related diseases.
October 2023 in “Journal of the Endocrine Society” A woman's excessive hair growth was linked to a rare case of high testosterone caused by a prolactin-producing pituitary tumor.
April 2025 in “Annals of Medicine” CRH can cause hair loss by promoting cell death in hair growth cells.
24 citations
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October 1995 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” The nafarelin test can reliably distinguish between gonadotropin deficiency and delayed puberty in teenage boys.
4 citations
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July 2018 in “Molecules” Gene expression in milk cells and blood can help detect illegal rbST use in cows.
15 citations
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June 2015 in “PLoS ONE” Thymosin beta-4 promotes hair growth in mice.
78 citations
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November 2005 in “Endocrinology” Hairless protein can block vitamin D activation in skin cells.
April 2025 in “Journal of Investigative Dermatology” High LH levels cause hair loss by damaging and aging hair follicles.
17 citations
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February 2019 in “Journal of Clinical Medicine” Testosterone replacement therapy should be used for men with low testosterone levels and symptoms of hypogonadism, after careful diagnosis and considering individual needs.
91 citations
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May 2003 in “American Journal of Pathology” Prolactin affects hair growth cycles and can cause early hair follicle regression.
6 citations
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November 2010 in “Histochemistry and cell biology” The proteins transthyretin and megalin are more present in the growth phase of hair, suggesting they might affect hair health and growth.
13 citations
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January 2021 in “Journal of Cellular and Molecular Medicine” Thymosin β4 may boost hair growth by aiding stem cell movement and blood vessel formation.