39 citations
,
November 2009 in “Clinical and Experimental Dermatology” Immune privilege collapse in hair follicles may cause permanent hair loss in certain conditions.
13 citations
,
March 2020 in “Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy” Alopecic hair has more irregular structures and chemical changes than normal hair, reducing its strength.
74 citations
,
October 2012 in “The American Journal of Human Genetics” Mutations in the HOXC13 gene cause hair and nail development issues.
August 2010 in “Journal of Investigative Dermatology” New hair regrowth model introduced, imiquimod kills skin cancer cells, T-cadherin loss makes skin cancer more invasive, no strong link between PTCH1 gene and skin cancer after transplant, and male teens more likely to have hereditary hair loss.
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.
3 citations
,
April 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” ILC1 cells contribute to hair loss in alopecia areata.
25 citations
,
November 2020 in “Proceedings of the National Academy of Sciences” HoxC genes are crucial for normal hair and nail development.
19 citations
,
July 2020 in “EBioMedicine” A gene variant increases the risk of a type of hair loss by affecting hair protein production.
142 citations
,
February 2016 in “Science” Foxc1 helps keep hair follicle stem cells inactive, preventing hair loss.
April 2017 in “Journal of Investigative Dermatology” Certain compounds can protect hair cells from aging and promote growth.
9 citations
,
July 2013 in “Experimental Dermatology” Aging reduces the ability of human hair follicle cells to form new cell colonies.
February 2026 in “Journal of Allergy and Clinical Immunology” Alopecia areata involves immune system issues and specific cell types that disrupt hair growth, leading to hair loss.
2 citations
,
June 2022 in “Scientific reports” Mouse hair follicle stem cells lose their ability to change into different cell types after being grown for a long time.
61 citations
,
January 2011 in “PloS one” Notch signaling is essential for healthy skin and hair follicle maintenance.
178 citations
,
June 1994 in “Journal of Investigative Dermatology” Alopecia areata in these mice is inherited, more common in young females, and can be treated with triamcinolone acetonide.
December 2025 in “ILDS-DEV”
31 citations
,
August 2021 in “Stem Cell Research & Therapy” The conclusion is that understanding how hair follicle stem cells live or die is important for maintaining healthy tissue and repairing injuries, and could help treat hair loss, but there are still challenges to overcome.
10 citations
,
July 2007 in “PubMed” Chemotherapy causes hair loss in cancer patients by affecting both growing and resting hair.
January 2006 in “Yearbook of Dermatology and Dermatologic Surgery” Hair graying is caused by the loss of pigment cells due to poor maintenance of stem cells in the hair follicle.
2 citations
,
October 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” AIRE deficiency causes hair loss similar to alopecia areata in mice.
5 citations
,
September 1997 in “Archives of Dermatology” The boy's hair loss was likely caused by a fungal infection.
August 2007 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Overexpression of a specific receptor in mice skin causes skin thinning, early skin barrier formation, eye issues, and hair loss.
Alopecia areata is an autoimmune disease that targets hair follicles.
May 2026 in “BMC Medicine” ACOD1 deficiency worsens hair loss by causing cell aging and mitochondrial problems, but 4-OI may help.
2 citations
,
June 2022 in “International Journal of Molecular Sciences” Lower levels of certain genes in hair cells improve hair loss treatment outcomes.
8 citations
,
September 2002 in “Genes to Cells” Killing specific cells in hair follicles can lead to hair growth problems in mice.
16 citations
,
August 2012 in “The journal of investigative dermatology/Journal of investigative dermatology” MED1 is essential for normal hair growth and maintaining hair follicle stem cells.
January 2008 in “Catalunya música: Revista musical catalana” Tooth loss can cause premature gray hair due to less chewing.
24 citations
,
January 1985 in “Dermatology” Higher levels of certain immune cells in hair follicles may contribute to alopecia areata.