April 2017 in “Journal of Investigative Dermatology” A virus protein can activate a pathway that may lead to abnormal hair follicle development.
January 2026 in “International Journal of Dermatology” APKH in young males may signal early hair loss and needs early attention.
March 2023 in “Scientific reports” Hair growth-related cells need the enzyme SCD1 to help maintain the area that supports hair growth.
27 citations
,
March 2018 in “Journal of Experimental Biology” Wool fibre curvature is due to longer orthocortical cells compared to paracortical cells.
17 citations
,
February 1987 in “Journal of the American Academy of Dermatology” The hair cuticle acts as a barrier against fungal infection, which occurs only deep within the hair follicle.
19 citations
,
January 2015 in “Skin appendage disorders” The report found a new type of hair loss in African-American women that affects more areas of the scalp than previously thought.
2 citations
,
January 2019 in “Dermatology Review” Pigmented vellus and upright regrowing hairs predict hair regrowth in severe alopecia.
184 citations
,
November 2014 in “Developmental Cell” Hair follicle dermal stem cells are key for regenerating parts of the hair follicle and determining hair type.
5 citations
,
February 2019 in “PloS one” Bald thigh syndrome in sighthounds is caused by structural defects in hair shafts due to downregulated genes and proteins.
36 citations
,
September 1996 in “PubMed” DP and DS cells are different from DF cells in structure and function.
Trichorrhexis nodosa causes hair to break easily, often affecting young to middle-aged black women.
September 1972 in “大会学術講演梗概集. 構造系” The document explains common hair disorders and the basics of hair anatomy and life cycle.
18 citations
,
June 1992 in “Acta Histochemica” Human hair follicles have a unique cell distribution and differentiation pattern during growth.
April 2025 in “Ukrainian Journal of Veterinary and Agricultural Sciences” Adding a water-soluble fatty acid complex to sheep diets improves wool growth by increasing primary hair follicle size and density.
January 2020 in “Revista Dermatológica Centro Uraga” Recognizing trichoscopic features is crucial for diagnosing various hair loss conditions.
February 2019 in “bioRxiv (Cold Spring Harbor Laboratory)” Cashmere goat hair growth follows a cycle with distinct growth, regression, and resting periods, influenced by specific genes.
4 citations
,
May 2015 in “Indian Journal of Dermatology, Venereology and Leprology” Congenital triangular alopecia can occur outside the typical fronto-temporal region.
Curly hair may be caused by a muscle contraction, and muscle relaxants might help treat it.
January 1997 in “Elsevier eBooks” Hair and nails are skin parts that develop early and serve protective and functional roles.
9 citations
,
April 2019 in “Journal of Structural Biology” Keratin fibers in hair twist left-handed.
9 citations
,
January 2003 The evolution of mammal body hair remains a mystery.
January 2022 in “Clinical Cases in Dermatology” A 12-year-old boy has a rare, harmless hair loss on his chin with no need for treatment.
Acitretin improved monilethrix symptoms temporarily, but they returned after stopping treatment.
January 2011 in “Shiyong kouqiang yixue zazhi” Dermal papilla cells and bulge stem cells can help reconstruct hair follicles.
117 citations
,
August 2005 in “Ultramicroscopy” Human hair's strength and flexibility vary by ethnicity, damage, and treatment.
28 citations
,
May 1998 in “Journal of the American Academy of Dermatology” Scalp inflammation can cause multiple hairs to grow from one follicle.
18 citations
,
January 2011 in “International journal of trichology” Hair casts, also called pseudonits, are often mistaken for other conditions.
10 citations
,
January 1925 in “Archives of Dermatology” Trichostasis spinulosa is a rare skin condition with hair-filled plugs in hair follicles.
4 citations
,
April 2019 in “Cosmetics” Hair stiffness is higher when it has more para-like cortical cells.
53 citations
,
October 2003 in “Genetics” The mK6irs1/Krt2-6g gene likely causes wavy hair in mice.