February 2024 in “Journal of Dermatological Science” Curved hair can develop when hair cells merge abnormally during growth.
January 2023 in “Indian Dermatology Online Journal” Uncombable hair syndrome is linked to Zellweger syndrome.
March 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Beard hair medulla cells have a unique and varied keratin pattern.
March 2009 in “Chinese Journal of Dermatology” Melanocytes in the outer root sheath are likely stem cells that grow fast but stay immature.
2 citations
,
November 2017 in “Histochemistry and Cell Biology” Polyamines are abundant in certain parts of rat hair follicles and may play a key role in hair growth.
March 2022 in “Folia Medica Indonesiana” The lump on a woman's scalp was a rare, potentially cancerous tumor from the hair follicle, not a common cyst.
22 citations
,
September 2000 in “Journal of Investigative Dermatology” μ-Crystallin may help hair growth by affecting thyroid hormone levels in mouse hair follicles.
16 citations
,
October 2014 in “Oral surgery, oral medicine, oral pathology and oral radiology” Keratoacanthoma comes from hair follicle cells.
4 citations
,
October 2016 in “The journal of investigative dermatology/Journal of investigative dermatology” Using an anti-ICAM-1 antibody with rapamycin improves hair transplant survival in monkeys.
March 2026 in “Current Bioactive Compounds” Plumbago europaea root extract may help regrow hair.
June 2017 in “Journal of the American Academy of Dermatology” Plucked hair can help diagnose pemphigus vulgaris early.
115 citations
,
January 2014 in “Journal of Cutaneous and Aesthetic Surgery” Platelet-rich plasma (PRP) is a cheap and easy treatment for hair loss, but not suitable for everyone. It also helps in healing ulcers, rejuvenating skin, and improving hair transplants.
100 citations
,
September 1999 in “British Journal of Dermatology” The study found that two enzymes linked to hair loss are located in different parts of the scalp, supporting a common treatment's effectiveness.
35 citations
,
January 2011 in “Journal of Biological Chemistry” sPLA2-X is crucial for normal hair growth and follicle health.
5 citations
,
March 2017 in “Laser Physics Letters” Different scalp imaging methods are important for studying hair and scalp health and require more volunteers for better evaluation.
5 citations
,
March 2001 in “Journal of biomechanics” Growing hairs are easier to pull out than resting hairs due to different anchorage strengths.
4 citations
,
January 2018 in “Advances in Experimental Medicine and Biology” The document concludes that hair follicles have a complex environment and our understanding of it is growing, but there are limitations when applying animal study findings to humans.
November 2025 in “Scientific Reports” COVID-19 may cause hair loss by affecting hair follicles.
August 2019 in “Journal of Investigative Dermatology” Skin may help in getting rid of excess iron through the process of skin cell renewal.
26 citations
,
September 1999 in “Canadian Journal of Botany” The RHD4 gene is crucial for consistent root hair growth in Arabidopsis thaliana.
6 citations
,
February 2013 in “Veterinary Dermatology” A young cat had a rare hair condition with twisted hair shafts but stayed healthy.
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.
120 citations
,
August 2008 in “The journal of investigative dermatology/Journal of investigative dermatology” Cytokeratin 19 and cytokeratin 15 are key markers for monitoring the quality and self-renewing potential of engineered skin.
45 citations
,
March 2001 in “Journal of Investigative Dermatology” A new protein, mK6irs, is found in specific hair layers and may help understand hair growth and diseases.
8 citations
,
June 2022 in “Scientific Reports” LGR5 is a common marker of hair follicle stem cells in different animals and is important for hair growth and regeneration.
6 citations
,
July 2022 in “World journal of stem cells” Using extracellular vesicles from stem cells can help hair grow by affecting scalp cells and hair follicles.
132 citations
,
August 2008 in “Development” Dlx3 is essential for hair growth and regeneration.
101 citations
,
July 1985 in “Journal of the American Academy of Dermatology” Biotin improved hair growth and combability in one child with uncombable hair syndrome.
97 citations
,
March 2010 in “The American Journal of Human Genetics” A mutation in the KRT74 gene causes tightly curled hair.
97 citations
,
January 2005 in “Wear” Human hair and skin friction vary by ethnicity, hair type, and environmental conditions.