October 1991 in “Archives of Dermatology” The woman has a skin condition involving nodules, scars, and hair loss.
82 citations
,
March 2012 in “Development” Drosha and Dicer are essential for hair follicle health and preventing DNA damage in skin cells.
11 citations
,
March 2004 in “Journal of Comparative Pathology” Norfolk Terriers have a genetic skin defect causing scaling and blisters due to a keratin issue.
A six-year-old girl with extra hair on her elbows was treated with hair removal methods.
17 citations
,
June 2011 in “The journal of investigative dermatology/Journal of investigative dermatology” The G60S Connexin43 mutation causes hair growth issues and poor hair quality in mice, similar to human ODDD patients.
9 citations
,
June 2020 in “JAAD Case Reports” Dissecting cellulitis may have genetic links and can cause permanent hair loss.
5 citations
,
March 1981 in “PubMed” A girl grew extra hair in areas where she had insect bites.
49 citations
,
April 2010 in “International Journal of Cosmetic Science” Hair ages as the cuticle wears down, especially beyond 1 meter from the root, affecting its strength and shine.
January 2023 in “Figshare” Mouse skin and hair aging starts at 200 days, with changes in hair follicles and more white hairs as signs of aging.
6 citations
,
July 2015 in “Journal of Investigative Dermatology” Chicken feather gene mutation helps understand human hair disorders.
73 citations
,
May 2009 in “Proceedings of the National Academy of Sciences” Disrupting the Sox21 gene in mice causes hair loss and regrowth cycles.
Sheep can lose wool quickly due to stress, but it doesn't cause itching or pain.
72 citations
,
July 1984 in “Journal of Investigative Dermatology”
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.
81 citations
,
June 2012 in “European journal of human genetics” Inherited ichthyoses cause widespread skin scaling and thickening due to gene mutations.
March 2015 in “Zagazig University Medical Journal” Damage to hair follicle stem cells may cause permanent hair loss and scarring in PCA.
January 2019 in “Global Dermatology” Genetic hair shaft abnormalities can be seen with microscopes and often affect scalp hair.
November 2024 in “Journal of Investigative Dermatology” Scalp hair follicle cells help protect and heal skin in certain skin conditions.
63 citations
,
April 2005 in “Mechanisms of development” Mice with too much Claudin-6 have skin barrier problems and abnormal hair growth.
15 citations
,
July 2016 in “Biochemical Journal” Wnt proteins from certain skin cells are crucial for normal hair growth and renewal.
4 citations
,
June 2015 in “Connective tissue research” The research found changes in gene expression related to cell death in mouse skin that help understand hair follicle development and skin health.
165 citations
,
September 2001 in “Genes & development” CDP is crucial for lung and hair follicle cell development.
8 citations
,
January 2002 in “Piel” Postmenopausal women may experience frontal hairline and eyebrow loss due to cicatricial fibrosis.
29 citations
,
December 2004 in “Developmental biology” cDermo-1 causes dense skin, feathers, and scales in chickens.
19 citations
,
May 2016 in “Matrix Biology” Deleting a specific protein in skin cells disrupts normal hair growth and development.
July 2025 in “Journal of Investigative Dermatology” Secreted inhibitors of Wnt and IGF signaling control hair and tooth development, creating species-specific patterns.
January 2025 in “Journal of Fungi” Advanced dermoscopy techniques improve diagnosis and treatment monitoring for Kerion celsi but don't guarantee full hair regrowth.
17 citations
,
April 1997 in “American Journal of Dermatopathology” PC-associated alopecia has unique microscopic features.
March 2020 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” The dermal sheath's contraction is crucial for hair follicle regression and stem cell relocation.
19 citations
,
November 2001 in “Journal of Investigative Dermatology Symposium Proceedings” Human hair follicles can regenerate and recover after severe injury by going through a brief abnormal resting phase before growing again.