March 2011 in “Hair transplant forum international” Unable to provide a summary as no conclusion is provided in the text.
Shh and Dhh affect skin development and can cause tumors, while Ihh does not.
30 citations
,
February 2010 in “The journal of investigative dermatology/Journal of investigative dermatology” Plet-1 protein helps hair follicle cells move and stick to tissues.
3 citations
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April 2012 in “Bioinformation” Two specific SNPs in the TRPS1 gene cause excessive hair growth by altering the protein's structure.
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.
42 citations
,
September 2003 in “Journal of Investigative Dermatology” A missing mK6irs1 gene causes hair loss in mice.
May 2025 in “Science Advances” PIEZO1 helps keep hair follicle stem cells inactive, affecting hair growth.
9 citations
,
February 2016 in “Cambridge University Press eBooks” The conclusion is that self-concept, shame, and emotion regulation are key factors in hoarding disorder, body dysmorphic disorder, and trichotillomania, and should be targeted in treatment and research.
16 citations
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June 2005 in “Clinical and Experimental Dermatology” Twisted hair is rare in severe anorexia nervosa, found in only 2 out of 30 patients.
September 2022 in “bioRxiv (Cold Spring Harbor Laboratory)” Removing Mediator 1 causes teeth cells to turn into hair cells.
75 citations
,
October 2010 in “Mammalian genome” Sphynx cats are hairless and Devon Rex cats have curly hair due to specific genetic mutations.
49 citations
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September 2004 in “Journal of the European Academy of Dermatology and Venereology” Careful light microscopy is crucial for detecting mild cases of pili annulati, which weakens hair and varies widely in expression.
July 2025 in “Dermatology Practical & Conceptual” A 2-year-old boy has a rare hair disorder causing brittle hair and hair loss, which may improve with age.
January 2000 in “Medical Entomology and Zoology” September 2021 in “CRC Press eBooks” Erosive pustular dermatosis of the scalp causes painful, scarring skin lesions on the scalp, mainly in elderly people with sun-damaged skin.
January 2024 in “Uttar Pradesh journal of zoology” Chemical treatments severely damage hair cuticles, especially in previously treated hair.
1 citations
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January 2025 in “Journal of Cosmetic Dermatology” Maintaining a balanced scalp microbiome can help reduce itchiness.
April 2017 in “Journal of Dermatological Science” Zinc deficiency disrupts hair growth and regeneration, but can be reversed with zinc supplementation.
34 citations
,
December 1984 in “Journal of Cutaneous Pathology” Monilethrix hair issues are due to problems in the hair's internodes.
26 citations
,
October 2016 in “Biomolecules & Therapeutics” 3-Deoxysappanchalcone helps human hair cells grow and stimulates hair growth in mice by affecting certain cell signaling pathways.
July 2025 in “Frontiers in Medicine” Mutations in the LIPH gene cause woolly hair in a child.
June 2018 in “International Journal of Dermatology” April 2019 in “Journal of Investigative Dermatology” Alopecia Areata patients have too many Firmicutes and too few Bacteroides in their gut.
March 2010 in “International Journal of Cosmetic Science” Disulfide bonds affect the melting behavior of hair's crystalline structure, but hair retains some stability even after these bonds are broken.
11 citations
,
March 2021 in “Molecular Carcinogenesis” Twist1 is crucial for UVB-induced skin cancer development.
1 citations
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March 2024 in “Genes & Diseases” EBF1 controls hair type and length.
February 2024 in “Buletin Veteriner Udayana” The dog with severe hair loss and itching improved after treatment for ehrlichiosis and demodicosis.
March 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” Removing a specific gene in certain skin cells causes hair loss on the body by disrupting normal hair development.
2 citations
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July 2015 in “Archives of Dermatological Research” A new gene variant in the DSP gene is linked to a unique type of hair loss.