November 2012 in “Experimental and Clinical Endocrinology & Diabetes” A new genetic mutation causes severe Leydig cell hypoplasia, affecting sexual development.
6 citations
,
March 1996 in “Journal of Investigative Dermatology”
Trichodysplasia spinulosa can occur after a heart transplant due to immunosuppressive drugs.
2 citations
,
January 1960 in “Australian Journal of Biological Sciences” The Naked gene in mice causes abnormal sebaceous glands and disrupts hair follicle organization.
December 2009 in “Cancer Research” Over-expression of Sp2 can lead to cancer by preventing proper stem cell differentiation.
46 citations
,
December 1992 in “The Journal of Steroid Biochemistry and Molecular Biology” Affected males are born with ambiguous genitalia, raised as females, but develop male traits at puberty due to enzyme deficiency.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Deleting the Hoxc13 gene in frogs shows its crucial role in developing skin structures similar to hair.
July 2025 in “Journal of the American Academy of Dermatology” Hair diameter diversity helps assess hair loss, but its standard measure varies by individual and ethnicity.
49 citations
,
January 2006 in “Developmental Dynamics” Noggin gene inactivation causes skeletal defects in mice, varying by genetic background.
98 citations
,
April 2003 in “Die Naturwissenschaften” January 1996 in “Studia iuridica” Two new gene mutations cause a rare hair disorder.
23 citations
,
December 1977 in “Virchows Archiv B Cell Pathology”
February 2026 in “International Journal of Homoeopathic Sciences” Plica Polonica is a rare hair disorder causing severe matting, managed by detangling or cutting, and prevented with regular hair care.
Polarized microscopy helps identify hair irregularities in genetic disorders.
March 1997 in “The Lancet” Hirsutism is abnormal male-pattern hair growth in females due to excess androgens.
10 citations
,
November 2008 in “Veterinary Dermatology” The mouse hairy ears mutation causes longer ear hair due to changes in gene expression.
January 2026 in “Repository of the Academy's Library (Library of the Hungarian Academy of Sciences)” Hungarian women feel societal pressure to remove body hair.
8 citations
,
March 2017 in “Journal of Mind and Medical Sciences” Human sexuality involves complex mental processes unique to humans.
8 citations
,
January 2007 in “International journal of experimental pathology” Hairless HRS/J mice resist Bacillus anthracis skin infections due to high numbers of immune cells, not because they lack hair follicles.
1 citations
,
August 2019 in “Evidence-Based Practice” Spironolactone and finasteride are equally effective for hirsutism in transgender women.
20 citations
,
October 1996 in “Journal of the American Academy of Dermatology”
61 citations
,
September 2008 in “Stem Cells” Most hair follicle stem cells do not protect their DNA by dividing it unevenly.
4 citations
,
April 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” The improved genome of the African spiny mouse helps study its tissue regeneration.
September 2025 in “Media Kedokteran Hewan” 90% of African pygmy hedgehogs in the study had fungal infections.
65 citations
,
September 2014 in “Orphanet Journal of Rare Diseases” Different STUB1 gene mutations cause varied symptoms in autosomal recessive ataxias.
1 citations
,
April 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” People with Hidradenitis Suppurativa have less diverse skin bacteria and different bacterial metabolism than healthy individuals.
5 citations
,
January 2009 in “International Journal of Trichology” Two siblings had a rare hair condition with banded hair, which doesn't need treatment.
14 citations
,
January 1977 in “PubMed” The hair keratin variant is mostly found in Caucasians.
April 2024 in “Indian dermatology online journal” A rare hair follicle disorder can cause itchy, bluish-black bumps on the body.
19 citations
,
November 2014 in “Journal of Comparative Physiology A” Spider joint hair sensilla are adapted to sense movement during walking.