22 citations
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April 1972 in “Journal of Steroid Biochemistry” Beard hair follicles convert testosterone to 5α-dihydrotestosterone most intensively.
58 citations
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November 2020 in “International Journal of Molecular Sciences” SHBG may be a useful early indicator and treatment target for PCOS.
January 2024 in “Frontiers in endocrinology” The study suggests that hypothyroidism may cause alopecia areata.
8 citations
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October 2012 in “Transgenic Research” Overexpressing the human H-ferritin gene in mice causes mild growth delay and temporary hair loss.
25 citations
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January 2017 in “Steroids” Allopregnanolone increases growth and changes gene activity in human brain cancer cells.
54 citations
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November 1994 in “Differentiation” Trichohyalin is found in non-hair tissues and works with filaggrin in certain skin areas and conditions.
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August 1999 in “Journal of Investigative Dermatology” New mutations in hair keratin genes cause the rare hair disorder monilethrix.
4 citations
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January 1986 in “PubMed” Serum biotin levels can indicate biotin deficiency in sows.
June 2020 in “Zenodo (CERN European Organization for Nuclear Research)” Controlled microflora in animals delays immune cell maturation and affects immunity.
August 2025 in “BMC Pharmacology and Toxicology” The LTF gene may help predict and manage nonspecific orbital inflammation.
March 2025 in “Journal of Cosmetic Dermatology” Thermus thermophilus extract improves hair growth and scalp health in men with hair loss.
April 2007 in “Linchuang pifuke zazhi” TGF-β1 and 2 may play a role in hair loss in AGA.
13 citations
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December 2005 in “Traffic” Syntaxin 9 helps in transporting and signaling of the EGF receptor in skin and stomach cells.
20 citations
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December 2013 in “PubMed” Quercetin boosts melanin production in mouse hair follicles.
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October 2022 in “international journal of endocrinology and metabolism” People with hypothyroidism and hair loss often have more hair and scalp issues than those without thyroid problems.
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December 2001 in “Dermatologic Therapy” Steroids may not work well for alopecia areata because of high unoccupied receptors and low thioredoxin levels.
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September 2013 in “Steroids” The DHT immunoassay is unreliable due to high cross-reactivity with testosterone.
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.
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March 2005 in “Journal of Investigative Dermatology” Brain-Derived Neurotrophic Factor (BDNF) slows down hair growth and promotes hair follicle regression.
115 citations
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December 1996 in “PubMed” The safe daily selenium intake is up to 819 micrograms.
April 2023 in “Journal of Investigative Dermatology” TGFβ-2 may cause hair loss in androgenetic alopecia.
1 citations
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January 2018 in “bioRxiv (Cold Spring Harbor Laboratory)” Increased PHGDH expression causes early melanin buildup in hair follicles.
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February 2008 in “The American journal of pathology” Controlled delivery of specific RNA and IL-4 restored hair growth in mice with autoimmune alopecia.
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December 2007 in “Pediatric allergy and immunology” Newborns with the common rash Erythema Toxicum have many active mast cells in their skin, but these cells don't produce the LL-37 peptide.
80 citations
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June 2000 in “Modern Pathology” Long-standing benign tumors can become cancerous, especially in people with weakened immune systems.
May 2005 in “Cancer Research” Melanoma cells lose their ability to form tumors when placed in a zebrafish embryo environment.
January 2014 in “Pathology” RET mutation is important in familial medullary thyroid carcinoma, and BRAF mutation in papillary thyroid carcinoma is linked to more aggressive cancer and higher death rates.
December 2023 in “Ukraïnsʹkij žurnal sučasnih problem toksikologìï/Ukraïnsʹkij Žurnal Sučasnih Problem Toksikologìï” Better diagnosis and control of thallium poisoning are needed to prevent severe outcomes.
Biotin boosts wool growth and follicle health in sheep.
24 citations
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January 2011 in “Sexual Development” Intersex frogs have different brain gene activity related to sex and thyroid hormones.