March 2021 in “AACE clinical case reports” A man with both Klinefelter syndrome and primary hyperparathyroidism showed a rare combination of symptoms and genetic patterns.
June 2014 in “The Journal of Dermatology” A patient with a rare chromosome condition also had a rare type of hair loss.
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.
47 citations
,
November 1966 in “Archives of Dermatology” Trichorrhexis nodosa is mainly caused by hair trauma, not a metabolic defect.
19 citations
,
April 2024 in “Nature Cell Biology” 2 citations
,
January 1990 in “PubMed” Perforating folliculitis is a skin condition with small bumps that may be linked to other diseases and is hard to treat.
October 2023 in “Indian Journal of Ophthalmology - Case Reports” Kallmann syndrome can cause eye issues and other health problems, requiring various treatments.
3 citations
,
January 1989 in “The Nishinihon Journal of Dermatology” A hair cyst can become cancerous, showing specific keratins from the hair sheath.
34 citations
,
December 1984 in “Journal of Cutaneous Pathology” Monilethrix hair issues are due to problems in the hair's internodes.
1 citations
,
January 1992 in “DNA sequence” Researchers found a non-functional sheep keratin gene due to mutations.
5 citations
,
June 2008 in “British Journal of Dermatology”
2 citations
,
May 2023 in “Cancer medicine” KRT80 may worsen cancer by increasing growth and spread, but its full effects on treatment and outcomes need more research.
1 citations
,
July 2025 in “JCI Insight” Hair follicle stem cells help maintain skin health by moving to and supporting the skin's surface layers.
January 2019 in “Advances in stem cells and their niches” Krox20 is important for cell differentiation in the brain and hair follicles.
January 2005 in “Journal of Cutaneous Pathology” A unique type of complex cyst was found on a man's scrotum.
51 citations
,
December 2006 in “Mammalian Genome”
40 citations
,
June 2013 in “Scientific Reports” A gene variant in KRT71 causes the curly fur in Selkirk Rex cats.
2 citations
,
February 2021 in “FEBS open bio” Human hair keratins K85 and K35 create unique filament patterns important for early hair formation.
April 2024 in “bioRxiv (Cold Spring Harbor Laboratory)” GRK2 is essential for healthy hair follicle function, and its absence can lead to hair loss and cysts.
November 2013 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Keratin 79 cells help form and regenerate hair canals.
20 citations
,
November 2003 in “American Journal Of Pathology” Fibroblasts from healthy donors can prevent changes seen in recessive epidermolysis bullosa simplex.
3 citations
,
February 2020 in “The journal of gene medicine” A mutation in the HR gene causes a rare form of irreversible hair loss in two Kashmiri families. Whole exome sequencing is effective for finding such mutations.
3 citations
,
March 2009 in “Hirosaki University Repository for Academic Resources (Hirosaki University)” Hirosaki hairless rats have sparse, twisted hair due to missing hair keratin genes.
43 citations
,
September 2001 in “Annals of Neurology” Hair root analysis can effectively detect somatic mosaicism in double cortex syndrome.
16 citations
,
October 2014 in “Oral surgery, oral medicine, oral pathology and oral radiology” Keratoacanthoma comes from hair follicle cells.
9 citations
,
November 2013 in “Dermatologic Surgery” Hair transplant complications were likely due to deep graft placement and rough handling.
April 2019 in “Journal of Investigative Dermatology” BRG1 is essential for skin cells to move and heal wounds properly.
18 citations
,
July 2006 in “British Journal of Dermatology” Connexin 30 is usually absent in normal skin but can appear in certain skin conditions.
January 1995 in “Skin Cancer” The outer root sheath in hair follicles changes during growth, with different keratinization processes in its layers.
October 2025 in “Journal of the Endocrine Society” Rathke’s cleft cysts can rarely cause Cushing disease, and surgery can improve symptoms.