November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” The study found markers indicating that cells responsible for hair color are differentiating in specific areas of the hair follicle.
2 citations
,
October 1931 in “Archives of Dermatology and Syphilology” A rare scalp infection in a child developed into a kerion with additional skin symptoms.
22 citations
,
February 2008 in “Journal of Dermatological Science” EPR spectroscopy showed that spontaneous hair growth results in thicker skin and less pigmented hair than depilation-induced growth.
19 citations
,
April 1999 in “British Journal of Dermatology” Keratin 2e shows a unique pattern in developing fetal skin, different from other keratins.
46 citations
,
July 2007 in “Journal of comparative neurology” Manatee whiskers are specially adapted for touch in water.
July 2025 in “Journal of Investigative Dermatology” Secreted inhibitors of Wnt and IGF signaling control hair and tooth development, creating species-specific patterns.
2 citations
,
April 1970 in “Archives of Dermatology” Ichthyosis serpentina may be a variant linked to bamboo hair, with a possible genetic component.
3 citations
,
January 2011 in “International Journal of Trichology” Tinea capitis affects only a specific hair area, not deeper parts.
February 2026 in “Veterinary Dermatology” Coat-type differences in Pomeranians affect Alopecia X diagnosis and treatment.
January 2022 in “Journal of Skin and Stem Cell” Trichodynia is a painful scalp condition needing targeted treatments beyond symptom management.
64 citations
,
January 1995 in “Cells Tissues Organs” Merkel cells develop independently of nerves and are linked to specific hair follicles in mice.
87 citations
,
July 2009 in “The journal of investigative dermatology/Journal of investigative dermatology” Human beard hair medulla contains a unique and complex mix of keratins not found in other human tissues.
August 2024 in “Archives of Dermatological Research” CHI3L1 and CXCL5 proteins help promote hair growth.
A 5-year-old girl has sparse, dry, and brittle hair but is otherwise healthy.
81 citations
,
January 1987 in “Current topics in developmental biology/Current Topics in Developmental Biology” Keratins change and are modified differently in skin layers and body parts.
1 citations
,
February 2009 in “Journal of Investigative Dermatology” Lipase H is important for hair follicle function and shaping hair fibers.
24 citations
,
September 2002 in “Dermatologic Surgery” The study found that hair follicles are above muscle connections in the scalp, which may help protect stem cell areas.
198 citations
,
November 1989 in “The Journal of Cell Biology” Keratin K14 expression varies between hair follicles and epidermis, affecting cell differentiation.
The human scalp has different types of pigment cells in hair follicles with varying abilities to produce pigment.
April 2017 in “Journal of Investigative Dermatology” Early and late matrix progenitors in hair follicles create different cell layers, with early ones forming the companion layer and later ones forming the inner root sheath and hair shaft.
January 2023 in “Journal of Veterinary and Animal Sciences” Dogs with skin lesions often have blood abnormalities and damaged hair.
January 2007 in “Durham e-Theses (Durham University)” Hair growth and shedding involve specific cell changes and gene roles.
18 citations
,
August 2014 in “Lipids” Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.
A runner developed tangled armpit hairs from shirt friction, preventable by shaving or wearing smooth shirts.
January 2024 in “International Journal of Advanced Research” Topical 6% salicylic acid effectively reduced skin plaques in a patient with wooly hair and palmoplantar keratoderma.
10 citations
,
April 2017 in “PLoS ONE” White rhinoceroses have a unique skin structure with thick epidermis and no hair or oil glands.
73 citations
,
January 2016 in “International review of cell and molecular biology” Cornification evolved from keratinization in vertebrates, with differences between mammals and sauropsids.
4 citations
,
June 2014 in “The Journal of Dermatology” Elkonyxis, a rare nail condition, improved when patients stopped their nail-picking habits.
12 citations
,
March 2004 in “Journal of Investigative Dermatology” 49 citations
,
July 2000 in “Journal of Histochemistry & Cytochemistry” POMC-derived peptides are important for skin functions like immune response and stress management.