April 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” Astrotactin2 affects hair follicle orientation and skin cell polarity.
55 citations
,
November 2018 in “American journal of human genetics” Mutations in the LSS gene cause a rare type of hereditary hair loss.
57 citations
,
August 2002 in “American Journal Of Pathology” Cathepsin L deficiency causes hair and skin issues in mice.
33 citations
,
October 2012 in “Journal of Morphology” Reptile skin hardens by layering beta-proteins on keratin.
3 citations
,
December 2020 in “Skin Appendage Disorders” Genetic testing confirmed a rare disorder causing hair loss and vision problems in a Saudi family, stressing its importance for diagnosis and counseling.
September 2021 in “Mağallaẗ al-Muẖtar li-l-ʿulūm” Two sisters have rare hair disorders causing short, fragile, kinky hair.
41 citations
,
January 1992 in “Journal of medical genetics” The study found that males with KFSD had severe skin and eye symptoms, while female carriers had milder symptoms.
Hirsutism is excessive male-pattern hair growth in women, often treated cosmetically or with hormone therapy if contraception is also desired.
3 citations
,
December 2020 The interdigital gland in crossbred sheep is similar to skin and has specialized structures for secretion.
Lichen spinulosus, usually seen in young people, can rarely occur in adults, as shown by a 52-year-old woman with a rough, bumpy rash.
3 citations
,
August 2010 in “Anais brasileiros de dermatologia/Anais Brasileiros de Dermatologia” A rare genetic disease caused severe, worsening hair loss from early childhood with poor treatment results.
3 citations
,
December 1967 in “Australasian Journal of Dermatology” Becker's Melanosis and Hypertrichosis mainly affects young males, causing brown skin patches and extra hair on one side of the upper body.
28 citations
,
February 2012 in “PLoS ONE” A PKP1 gene mutation causes skin fragility and hair loss in Chesapeake Bay retriever puppies.
24 citations
,
May 2019 in “PLOS genetics” Mutations in the HEPHL1 gene cause abnormal hair and cognitive issues.
47 citations
,
August 2000 in “Endocrine Reviews” The document concludes that more research is needed to understand excessive hair growth in women with normal hormone levels and regular ovulation.
4 citations
,
March 1999 in “International Journal of STD & AIDS” Netherton's syndrome can cause frequent bacterial infections beyond just skin issues.
53 citations
,
October 1984 in “Endocrine reviews” Excessive hair growth in women often has no known cause and is not linked to race or other hormonal symptoms.
26 citations
,
January 1983 in “PubMed” Trichothiodystrophy involves brittle hair due to low sulfur amino acids, not a transport defect.
66 citations
,
December 1999 in “Journal of Investigative Dermatology” New mutations in the hairless gene may cause hair loss and affect bone development.
January 2023 in “Indian dermatology online journal” A child with ectodermal dysplasia-syndactyly syndrome has a new mutation in the NECTIN4 gene.
April 2017 in “IOSR journal of dental and medical sciences” Netherton Syndrome is a non-treatable genetic disorder in children causing skin, hair, and allergy issues.
5 citations
,
February 2003 in “American Journal of Medical Genetics Part A” A chromosomal change may cause ectodermal dysplasia and developmental issues in a child.
September 2001 in “Swiss Medical Forum ‒ Schweizerisches Medizin-Forum” 166 citations
,
July 1999 in “American Journal Of Pathology” The hairless (hr) gene is essential for normal hair follicle function and its mutation leads to hair loss.
21 citations
,
November 1981 in “Archives of Dermatology” Ashy dermatosis may be linked to atopy and thyroid disease and can be treated with topical steroids.
October 2016 in “Veterinary record case reports” A cat had a rare skin disorder with hair loss and scaling, linked to a suspected tumor.
May 2024 in “Animal genetics” A cat's poor wound healing was linked to a genetic deletion in the COL5A1 gene.
January 2021 in “Nasza Dermatologia Online” Plica polonica is a rare condition where hair becomes irreversibly tangled, and the treatment is to cut the matted hair.
2 citations
,
May 2011 in “International Journal of Dermatology” A 12-year-old boy in rural south India had a rare skin condition causing hair loss and inability to sweat.
13 citations
,
August 2005 in “Journal of Investigative Dermatology Symposium Proceedings” Mutations in the DSG4 gene cause fragile, sparse hair in humans, mice, and rats.