February 2009 in “Journal of the American Academy of Dermatology” Transverse sections are better for non-scarring hair loss, vertical sections are better for lichen planopilaris, and either method works for other scarring hair loss types.
47 citations
,
September 2002 in “Journal of Bone and Mineral Research” A mutation in the vitamin D receptor causes severe resistance to vitamin D, affecting bone health but not hair growth.
October 2021 in “Authorea (Authorea)” New hair perming method using tyrosine is gentler and can be done with a blow-dryer.
46 citations
,
December 1998 in “Journal of Biological Chemistry” Keratin 19 forms less stable and shorter filaments than keratin 14, giving unique traits to certain skin cells.
11 citations
,
January 2017 in “Biochemical and biophysical research communications” 1α,25-dihydroxyvitamin D3 directly affects cartilage growth and development.
2 citations
,
September 2024 in “Asian Journal of Andrology” New SRD5A2 variants may disrupt protein function, aiding diagnosis and treatment of related disorders.
13 citations
,
December 2018 in “Development, Growth & Differentiation” Sex hormones, especially estradiol, can change chicken feather shapes and colors.
2 citations
,
September 2004 in “Experimental Dermatology” Keratinocyte adhesion problems can cause skin and hair disorders.
June 2023 in “Journal of biological chemistry/The Journal of biological chemistry” Sdr16c5 and Sdr16c6 genes regulate a key point in lipid production that affects eye and skin gland function.
November 2025 in “Advanced Healthcare Materials” Charge-conversion chemistry improves hair-rebonding by enhancing penetration and strength.
5 citations
,
January 2014 in “Molecular Simulation” A new compound may treat benign prostatic hyperplasia better than finasteride.
62 citations
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December 2007 in “Journal of biological chemistry/The Journal of biological chemistry” A specific chemical change in the S100A3 protein leads to the formation of a four-part structure important for hair formation.
56 citations
,
July 2005 in “Journal of The American Academy of Dermatology” Using both vertical and transverse sections gives a better diagnosis of alopecia than using one method alone.
November 2023 in “Вопросы современной педиатрии” Genetic testing can diagnose hair loss linked to DSG4 gene variants.
98 citations
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April 2003 in “Die Naturwissenschaften” 
25 citations
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April 2007 in “Journal of The American Academy of Dermatology” The document suggests "anisotrichosis" as a new term for hair thickness variation in common baldness.
May 2021 in “FEBS open bio” 3 citations
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June 2004 in “Työväentutkimus Vuosikirja” Ectodermal dysplasia syndromes are caused by disruptions in key signaling pathways affecting tooth and hair development.
7 citations
,
January 1990 
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” DKK2 and SOSTDC1 together are necessary for the normal timing of the first regression phase in the hair growth cycle.
1 citations
,
March 1998 in “Journal of Dermatological Science” 21 citations
,
January 1995 in “Molecular Biology Reports” Scientists discovered two versions of a new human hair keratin gene.
NuMA-microtubule interactions are vital for proper skin structure formation and function.
4 citations
,
June 1990 in “PubMed” Hair protein differences help identify species and individuals in forensic science.
38 citations
,
July 1993 in “Journal of Investigative Dermatology” September 2015 in “Photodiagnosis and Photodynamic Therapy” 
193 citations
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August 1985 in “Endocrinology” Different animals have unique versions of the enzyme that changes testosterone into another hormone, which is important for creating effective treatments for prostate and hair loss conditions.
33 citations
,
October 1996 in “Journal of Investigative Dermatology” January 2026 in “Aging and Disease” The Dickkopf (DKK) protein family, known for regulating the Wnt signaling pathway, has been increasingly recognized for its roles in non-cancerous diseases such as osteoporosis, arthritis, chronic kidney disease, myocardial injury, neurodegenerative conditions like Alzheimer's disease, and dermatological issues including alopecia. Recent research highlights the potential of DKK proteins as diagnostic biomarkers and therapeutic targets in these disorders. This review synthesizes findings from the past three years, exploring the DKK family's pathophysiological roles and clinical relevance, and discusses the challenges and opportunities in leveraging these proteins for diagnosis and treatment.
22 citations
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January 1990