March 2015 in “Zagazig University Medical Journal” Damage to hair follicle stem cells may cause permanent hair loss and scarring in PCA.
24 citations
,
January 1989 Human papilla cells from hair follicles show unique growth behaviors but don't induce hair growth in vitro.
89 citations
,
May 2005 in “Stem Cells” Mouse skin has special cells in the epidermis that decrease with age and are linked to keratinocyte stem cells.
26 citations
,
January 1992 in “Carcinogenesis” TPA strongly increases ODC activity in certain skin cells, potentially aiding tumor growth.
13 citations
,
February 1995 in “Archives of Dermatological Research” Gamma/delta T cells help defend skin against heavy metals.
29 citations
,
July 2003 in “Experimental Dermatology” The upper hair follicle is stable, while the lower part allows movement during hair growth.
December 2021 in “2021 International Conference on Electronic Information Technology and Smart Agriculture (ICEITSA)” Chemical dyes damage hair's internal structure more than perming, as shown by a special imaging technique.
307 citations
,
November 1968 in “Journal of neurophysiology” Cats' hairy skin has different touch receptors connected by myelinated fibers.
90 citations
,
August 2004 in “Physiological Genomics” Dermal papilla cells help skin stem cells grow into hair.
1 citations
,
March 2019 in “International Journal of Molecular Medicine” Mouse hair follicle cells can become heart-like cells without genetic changes.
June 2025 in “Academic Medical Journal” Restoring hair follicle immune privilege may help treat alopecia areata.
January 2025 in “Open Life Sciences” Overexpression of the HE4 gene in mice causes eye inflammation and cloudiness.
20 citations
,
May 2016 in “Journal of Cutaneous Pathology” Using CD123 to detect certain immune cells helps diagnose a type of hair loss condition.
November 2025 in “Stem Cell Research & Therapy” Human hair follicle cells can help regenerate hair and reduce inflammation, aiding in hair loss treatment.
67 citations
,
January 2020 in “Cellular & Molecular Immunology/Cellular & molecular immunology” Tissue-resident memory T cells can protect against infections and cancer but may also contribute to autoimmune diseases.
April 2023 in “Journal of Investigative Dermatology” Sunlight simulation causes skin inflammation, with different skin types reacting at different levels of exposure.
June 2017 in “Journal of The American Academy of Dermatology” LED light helps hair follicle cells grow and prevents them from dying by activating certain cell pathways.
352 citations
,
August 2003 in “Proceedings of the National Academy of Sciences” Nestin is found in hair follicle progenitor cells, linking them to neural stem cells.
8 citations
,
April 1979 in “Journal of Cutaneous Pathology” Giant cells found in some male pattern baldness cases may help diagnose it and suggest hair is mistakenly seen as foreign by the body.
RXR and RAR proteins in skin may help with cell growth, hair growth, and gland function.
7 citations
,
July 2025 in “The Journal of Physiology” C-tactile nerves are sensitive to hair movement.
1 citations
,
July 2012 in “Nasza Dermatologia Online” CCCA may be caused by both hair traction and an immune response.
14 citations
,
May 2022 in “Stem cell reports” The study created hair-bearing skin models that lack a key protein for skin layer attachment, limiting their use for certain skin disease research.
April 2023 in “Journal of Investigative Dermatology” Hair growth is driven by cells that move and change like a conveyor belt.
Shh and Dhh affect skin development and can cause tumors, while Ihh does not.
June 2019 in “Stem Cell Research” Scientists created MUSIi010-A, a stem cell line from a balding man's scalp, to study hair loss and develop potential treatments.
February 2023 in “Biophysical Journal” Light can be used to stimulate ear hair cells, improving speed and consistency over previous methods.
1 citations
,
October 2015 in “OakTrust (Texas A&M University Libraries)” Harp seals have different innervation patterns in their whiskers, with lateral whiskers having more axons than medial ones.
7 citations
,
May 2020 in “Trends in molecular medicine” The document concludes that the immune-inhibitory environment of the hair follicle may prevent melanoma development.
66 citations
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June 2004 in “Biophysical Journal” Hard α-keratin in hair has a unique, nonordered structure, different from other fibers.