9 citations
,
August 2007 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Sheep wool follicles absorb different amino acids at various rates and locations, which could affect wool growth based on diet and genetics.
March 2026 in “Indian Dermatology Online Journal” Hair dye ingredient PPD can cause severe allergic reactions, including facial swelling.
September 1998 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” Hair changes could indicate neurological diseases and help monitor treatment.
January 2009 in “ScholarlyCommons (University of Pennsylvania)” The P133R mutation in AKR1D1 enzyme causes harmful bile acid buildup, explaining related health issues.
44 citations
,
June 1967 in “The journal of nutrition/The Journal of nutrition” Lack of essential fatty acids in diet causes reproductive issues and poor health in male rabbits.
5 citations
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June 2023 in “BMC genomics” A specific gene mutation causes long hair in Angora rabbits.
July 2021 in “PARIPEX INDIAN JOURNAL OF RESEARCH” Knuckle darkening can be an early sign of vitamin B12 deficiency.
37 citations
,
February 2005 in “Journal of Investigative Dermatology” Overexpression of SSAT causes hair loss and skin issues, but reducing putrescine can help.
January 2024 in “Arquivos de Neuro-Psiquiatria” Consider THPP in patients with muscle weakness and low potassium, as it is often underdiagnosed.
38 citations
,
October 2014 in “Current Opinion in Endocrinology, Diabetes and Obesity” 5-alpha reductase deficiency leads to male sexual development issues and treatments like finasteride help with prostate enlargement and hair loss.
16 citations
,
June 2015 in “The journal of investigative dermatology/Journal of investigative dermatology” The enzyme DHHC13 is essential for healthy hair and skin, and its deficiency leads to hair loss and skin problems.
2 citations
,
January 2012 in “Journal of Clinical & Experimental Dermatology Research” Fexofenadine reduces discomfort but doesn't significantly improve hair regrowth in Alopecia Areata treatment.
85 citations
,
March 2008 in “Journal of Cell Science” The mutation causing Hutchinson-Gilford progeria syndrome leads to severe skin problems and early death in mice.
November 2025 in “Journal of Investigative Dermatology” A new genetic mutation causing Xeroderma Pigmentosum was found in an 8-year-old girl, affecting her DNA repair.
June 2021 in “Asian Journal of Medical Sciences” Vitamin B12 deficiency can cause reversible skin darkening.
7 citations
,
January 2015 in “Dermatology” Two gene variations, rs6493497 and rs7176005, may be linked to female hair loss in Chinese people.
124 citations
,
July 1997 in “Journal of Biological Chemistry” Overexpressing a specific enzyme in mice causes hair loss and female infertility.
3 citations
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May 2024 in “Amino Acids” Disrupted cysteine metabolism may cause hair breakage in Alopecia Areata, suggesting potential treatments like N-acetylcysteine.
January 2026 in “Frontiers in Medicine” A child has a rare hair and skin disorder due to specific gene variants, suggesting broader genetic testing is needed.
2 citations
,
July 2022 in “Pediatric dermatology” A toddler with a rash and developmental delays improved after treatment for severe malnutrition caused by a diet lacking in protein.
1 citations
,
October 2024 in “Canine Medicine and Genetics” The MLPH gene is not linked to seasonal hair loss in Rhodesian Ridgeback dogs.
November 2024 in “Jurnal Biomedika dan Kesehatan” Premature graying in young children can affect self-esteem, and addressing underlying health issues may reverse it.
8 citations
,
June 2012 in “PloS one” Mutations in Plcd1 and Plcd3 together cause severe hair loss in mice.
19 citations
,
August 1999 in “European journal of endocrinology” The study concluded that testing hormone levels after stimulation is not reliable for identifying carriers of 21-hydroxylase deficiency; genetic testing is necessary.
17 citations
,
May 2013 in “Journal of Investigative Dermatology” Mutations in β1 integrins cause embryonic death but have milder effects on skin.
28 citations
,
April 2017 in “Journal of cosmetic dermatology” Low vitamin D can worsen pediatric alopecia areata.
2 citations
,
May 2023 in “Indian Journal of Dermatology Venereology and Leprology” A new genetic mutation in the CAST gene may link PLACK syndrome to alopecia areata.
February 2026 in “Endokrynologia Polska” Early diagnosis and treatment are crucial for managing Berardinelli–Seip syndrome.
42 citations
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February 1996 in “Journal of Investigative Dermatology” Polyamines, especially spermidine, are essential for hair growth.
April 2015 in “Archives of disease in childhood” A chubby child can still be malnourished.