13 citations
,
July 2012 in “International Journal of Trichology” TTD symptoms vary widely, requiring thorough evaluations.
April 2012 in “Neuropediatrics” Trichothiodystrophy is a rare genetic disorder causing hair issues and sometimes linked to DNA repair defects.
2 citations
,
May 2022 in “Stem cell research & therapy” Disrupted stem cell signals in hairpoor mice cause hair loss.
May 2024 in “International Journal of Cosmetic Science” Disulfide bonds are crucial for hair's strength, especially when wet.
5 citations
,
October 2015 in “The American journal of pathology” Mice with a mutated Dsg3 gene showed severe symptoms but not the typical blistering of pemphigus vulgaris.
61 citations
,
April 1980 in “Journal of the American Academy of Dermatology” A new syndrome may link skin, growth, mental, and hair issues.
March 1999 in “Annals of the Academy of Medicine Singapore” Trichotillomania is a chronic condition where people uncontrollably pull out their hair, often needing medication and therapy for treatment.
38 citations
,
October 2011 in “Analytical biochemistry” Hair proteins have weak spots in their α-helical segments.
27 citations
,
February 1991 Cuticle damage doesn't affect hair's tensile strength; the cortex is responsible for it.
1 citations
,
September 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Removing Dicer from pigment cells in newborn mice causes early hair graying and changes in cell migration molecules.
December 1972 in “Archives of Dermatology” The girl has an inflammatory type of scarring hair loss.
April 2018 in “Journal of Investigative Dermatology” Desmoglein 3 organization in cell connections changes without calcium, affecting cell adhesion.
January 2018 in “Springer eBooks” Telogen effluvium is hair loss caused by disruption of the normal hair cycle.
June 2025 in “British Journal of Dermatology” Segmented hair color changes can indicate active alopecia areata.
36 citations
,
January 2012 in “International Journal of Trichology” Losing eyelashes or eyebrows can be a sign of many different health problems and needs a careful approach to treat effectively.
44 citations
,
August 2004 in “Journal of Investigative Dermatology” A gene deletion in DSG4 causes sparse hair in some Pakistani families.
9 citations
,
October 1995 in “Clinical Dysmorphology” The family has a unique form of ectodermal dysplasia similar to Clouston syndrome but with different hair and skin symptoms.
15 citations
,
March 1996 in “PubMed” Anorexia nervosa may cause a hair defect called pili torti due to malnutrition and high vitamin A levels.
January 2007 in “Revista del Centro Dermatológico Pascua” A 2-year-old boy was diagnosed with a rare genetic condition causing fragile hair, intellectual issues, and short stature.
3 citations
,
June 2004 in “Työväentutkimus Vuosikirja” Ectodermal dysplasia syndromes are caused by disruptions in key signaling pathways affecting tooth and hair development.
1 citations
,
December 2013 in “International Journal of Dermatology”
February 2024 in “Buletin Veteriner Udayana” The dog with severe hair loss and itching improved after treatment for ehrlichiosis and demodicosis.
Oxidized hair can naturally regain strength and stability over six months.
47 citations
,
July 1967 in “Science” Not eating enough protein can cause hair roots to shrink and lose color, and hair to become thinner.
January 2017 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” Sunlight and chemical treatments change hair's internal structure differently, needing specific care.
January 2021 in “Skin Appendage Disorders” 81 citations
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March 2006 in “Journal of Investigative Dermatology” Mutations in the DSG4 gene cause specific hair and scalp issues.
September 2018 in “PubMed” Hair becomes thinner, grayer, and may fall out more as people get older, and styling habits can worsen these effects.
May 2019 in “Small Animal Dermatology” The dog has Color Dilution Alopecia, causing hair loss and increased risk of skin infections.