32 citations
,
December 1969 in “The Lancet” Children with marasmus have more resting hair follicles and thinner, less pigmented hair, showing long-term malnutrition.
2 citations
,
May 2022 in “Stem cell research & therapy” Disrupted stem cell signals in hairpoor mice cause hair loss.
4 citations
,
January 2018 in “Indian dermatology online journal” Trichoscopy helped diagnose and cure a child's hair loss caused by a fungal infection.
9 citations
,
December 2022 in “Genes” CNVs influence hair length in Tianzhu white yaks.
18 citations
,
January 1992 in “Dermatology” A 4-year-old girl has a rare condition causing hairlessness and skin bumps, but normal teeth and sweating.
Hairlessness in mammals is caused by combined changes in genes and regulatory regions.
9 citations
,
November 2021 in “Current Opinion in Genetics & Development” Wounds can cause new hair growth in adult mice, influenced by Wnt signaling.
95 citations
,
January 2009 in “Journal of Biomedical Optics” Nanoparticles penetrate hair follicles better when their size matches the cuticula thickness.
56 citations
,
January 1970 in “Cell and Tissue Research” 2 citations
,
September 2023 in “Journal of the Egyptian Womenʼs Dermatologic Society” Exclamation mark hairs and broken hairs best indicate active alopecia areata.
5 citations
,
March 2009 in “Pediatric Dermatology” The study found that pili bifurcati causes hair to intermittently split into two branches, each with its own outer layer.
18 citations
,
January 2011 in “International journal of trichology” Hair casts, also called pseudonits, are often mistaken for other conditions.
142 citations
,
February 2016 in “Science” Foxc1 helps keep hair follicle stem cells inactive, preventing hair loss.
July 2024 in “Journal of Investigative Dermatology” January 2024 in “Updates in clinical dermatology”
143 citations
,
October 2008 in “Journal of The American Academy of Dermatology” Comma hairs are a specific sign of tinea capitis when viewed with videodermatoscopy.
17 citations
,
December 2010 in “Journal of Investigative Dermatology” Flightless I protein affects hair growth, with low levels delaying it and high levels increasing hair length in rodents.
June 2019 in “Journal of evolution of medical and dental sciences” Dermoscopy is useful for tracking alopecia areata treatment, with yellow dots and new vellus hairs being good indicators of hair regrowth.
April 2018 in “Journal of Investigative Dermatology”
2 citations
,
September 2017 in “Plastic and Aesthetic Research” Healthy Han Chinese have lower hair density than whites and Africans, and transplanting 300 hair units can nearly restore normal hair density.
18 citations
,
January 2019 in “Animal Biotechnology” A newly found RNA in Cashmere goats may play a role in hair growth and development.
26 citations
,
January 2012 in “Journal of the American Academy of Dermatology” Eflornithine cream makes laser hair removal more effective for treating pseudofolliculitis barbae.
2 citations
,
November 2022 in “Skin research and technology” 5% topical minoxidil improves hair density and quality in monilethrix patients.
1 citations
,
January 2018 in “Acta dermato-venereologica” A teenager's hair with alternating white and dark bands, known as Pili annulati, is a genetic condition that is usually harmless and often considered attractive.
21 citations
,
April 2000 in “Journal of Cutaneous Pathology” The hamartoma is an abnormal hair growth with limited development in the upper hair follicle.
October 2024 in “Dermatology Practical & Conceptual” Trichoscopy effectively diagnoses eyebrow hair loss in certain conditions.
1 citations
,
May 2024 in “Preprints.org” Rex rabbit fur is best harvested at 120 days for optimal hair density and quality.
2 citations
,
September 2023 in “Journal of the European Academy of Dermatology and Venereology” Trichoscopy is a useful tool for diagnosing different types of female hair loss without needing a biopsy.
March 1998 in “Journal of dermatological science” Protease Nexin-1 is found in human hair growth cells and is affected by male hormones.
September 2002 in “대한피부과학회지” Koreans have lower hair density, larger hair diameter, and slower hair growth than Caucasians.