7 citations
,
March 2022 in “Frontiers in Genetics” The research found specific genes that may cause longer hair in Tianzhu White Yak.
39 citations
,
January 2020 in “Frontiers in Genetics” PDGFC gene may help select goats with desirable curly wool traits.
3 citations
,
June 1979 in “The Journal of Dermatology” Glycosaminoglycan levels peak early in hair growth and decrease as the cycle progresses.
8 citations
,
January 2015 in “Genetics and molecular research” Researchers found four key proteins that affect the development of a specific hair type in Yangtze River Delta white goats.
Frizzy hair is fragile and can lead to hair loss and damage if not properly cared for.
264 citations
,
October 1958 in “Archives of Dermatology” A 4-year-old girl has a rare hair condition causing fragile, short hair.
43 citations
,
July 1994 in “Journal of Cell Science” Cross-linked proteins help maintain the structure of hair, feathers, and hagfish teeth.
February 1999 in “The anatomical record” Two mouse mutants have defective hair cuticle cross-linking.
Black hair's diversity in patterns and textures is influenced by follicle shape and keratin, and it holds cultural, artistic, and mathematical significance.
January 1994 in “Nihon Chikusan Gakkaiho” Collagen fibrils in mink skin change structure during hair growth, becoming looser and thicker in the active phase.
83 citations
,
October 1998 in “The American Journal of Human Genetics” A specific gene mutation causes complete hair loss in an Irish Traveller family.
December 2022 in “Scientific Reports” Stem cells from whiskers can be transplanted to stimulate hair growth.
7 citations
,
October 2022 in “Development” Overactive Wnt5a disrupts hair follicle orientation in mice.
March 2023 in “Journal of Student Research” Humans likely became hairless to better regulate body temperature.
29 citations
,
February 2019 in “Pediatric dermatology” Trichotillomania shows specific signs like black dots and uneven hair lengths but lacks certain features of alopecia areata.
July 2025 in “Journal of Investigative Dermatology” Secreted inhibitors of Wnt and IGF signaling control hair and tooth development, creating species-specific patterns.
May 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” The study found that certain genes are important for hedgehog skin appendage development and immunity, with spines possibly evolving for protection and infection resistance.
March 2023 in “International Journal of Dermatology” COVID-19 can cause hair to become progressively kinked.
6 citations
,
January 2017 in “Journal of toxicologic pathology” Rabbit skin with active hair growth shows thicker, redder areas due to larger, more numerous hair follicles and increased blood vessels.
49 citations
,
March 2004 in “Journal of Investigative Dermatology” The hHa7 gene is regulated by androgens in certain body hair, not scalp hair.
August 2016 in “Journal of Investigative Dermatology” Human hair follicles have a scent receptor that can influence hair growth.
2 citations
,
August 2023 in “Development” Hair follicles in the back of the rosette fancy mouse have reversed orientations due to a gene mutation.
26 citations
,
December 1990 in “Journal of Biological Chemistry” Two specific genes are more active during hair growth in mice.
Wavy sinus hairs in cats are linked to feline leukemia virus infection.
3 citations
,
December 2013 in “Journal of Dermatology” Scanning electron microscopy revealed four distinct hair root shapes in alopecia areata, suggesting a less invasive diagnostic method.
July 2024 in “Journal Archives of Health” Woolly hair is a rare genetic condition with no effective treatments.
July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair growth cycles need varied signals in space and time.
1 citations
,
January 2007 in “中国科学通报:英文版” Women's hair has more sulfur, and black hair has more calcium than white hair.
Researchers developed a new model for more realistic computer graphics of hair by considering how light scatters on hair fibers.
5 citations
,
August 2005 in “Anatomy and Embryology” Rat skin has a linear system of nerve fibers linked to hair follicles and muscles.