Arginine deficiency hinders hair growth in androgenetic alopecia, but restoring it can promote hair regeneration.
4 citations
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January 2011 in “Annals of Dermatology” Researchers found a new mutation in the HR gene linked to a rare hair loss condition.
34 citations
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October 1975 in “Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis” November 2023 in “International Journal of Trichology” Alopecia areata may be linked to kidney issues, but more research is needed.
5 citations
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April 1946 in “PubMed” Liver extract treatment improved anemia and hair growth in a pig.
152 citations
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April 2002 in “The journal of investigative dermatology/Journal of investigative dermatology” A new mutation in the Connexin 26 gene was found in a patient with KID syndrome, expanding the known disorders linked to this gene.
4 citations
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January 2014 in “Indian dermatology online journal” Monilethrix is a genetic hair disorder causing fragile, beaded hair with no effective treatment.
March 2021 in “AACE clinical case reports” A man with both Klinefelter syndrome and primary hyperparathyroidism showed a rare combination of symptoms and genetic patterns.
2 citations
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August 2017 in “British Journal of Dermatology” Hair loss in Cronkhite-Canada syndrome may be due to an autoimmune response.
6 citations
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August 2012 in “The Journal of Pediatrics” A 12-year-old girl was diagnosed with monilethrix, a genetic condition causing fragile, beaded hair that breaks easily, with no effective treatment available.
April 2025 in “Indian Journal of Paediatric Dermatology” Zinc supplements improved the girl's skin and hair condition.
November 2015 in “Clin-Alert” Some medications and supplements can cause serious side effects, including hair loss, heart rhythm problems, liver injury, and other health issues.
47 citations
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November 1966 in “Archives of Dermatology” Trichorrhexis nodosa is mainly caused by hair trauma, not a metabolic defect.
February 2016 in “Acta Medica Marisiensis” A woman with chronic hepatitis C had a rare skin condition linked to her illness.
11 citations
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June 1979 in “British Journal of Dermatology” The enzyme system in hair follicles is similar to the liver's and is affected by certain inhibitors.
4 citations
,
January 1989 in “Journal of Steroid Biochemistry” Women with hyperandrogenism have higher androgen levels and lower SHBG, which may contribute to conditions like excessive hair growth and early puberty.
4 citations
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November 2020 in “Acta Dermato Venereologica” Tofacitinib effectively improved severe skin symptoms in a patient with Hypohidrotic Ectodermal Dysplasia.
December 2024 in “European journal of medical research” October 2025 in “Clinical and Experimental Pediatrics” A novel CLDN1 mutation in a 2-month-old with NISCH showed improvement with symptom management.
2 citations
,
October 2023 in “Philosophical transactions - Royal Society. Biological sciences” Enzymes that change arginine to citrulline are important for skin barrier and hair formation, and their malfunction can lead to skin conditions and hair disorders.
18 citations
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August 2018 in “The FASEB journal” Rabbits lacking the Hoxc13 gene show similar hair and skin issues to humans with ECTD-9, making them good for research on this condition.
6 citations
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July 1994 in “Journal of Dermatological Science” Introducing the rat OTC gene normalized hair growth in SPF-ASH mice.
February 2024 in “Sučasna gastroenterologìâ” The patient was diagnosed with celiac disease after a long delay, showing the need for better awareness and earlier detection.
1 citations
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November 2024 in “Diabetes Metabolic Syndrome and Obesity” A specific gene variant is linked to severe insulin resistance and hormone imbalance in a teenage girl.
6 citations
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July 2022 in “The FASEB Journal” Methionine helps improve hair growth in heat-stressed rabbits.
Copper levels in green hair decreased significantly after treatment.
Hirsutism is excessive male-pattern hair growth in women, often treated cosmetically or with hormone therapy if contraception is also desired.
9 citations
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January 2011 in “Journal of X-ray science and technology” Perming and bleaching damage hair differently, with bleached hair having more cysteic acid in the cuticle.
9 citations
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May 2001 in “Journal of the American Veterinary Medical Association” A cat's hyperactivity and hair loss were caused by eating valproic acid but improved after stopping access to the drug.
1 citations
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October 2024 in “JCEM Case Reports” 5α-reductase deficiency can cause ambiguous genitalia and gender dysphoria, treatable with testosterone.