68 citations
,
December 1991 in “Annals of the New York Academy of Sciences” Hair growth can be induced by certain cells found at the base of hair follicles, and these cells may also influence hair development and regeneration.
May 2018 in “Journal of Investigative Dermatology” Activating Wnt in skin cells controls the number of hair follicles by directing cell movement and fate.
7 citations
,
November 2014 in “Histochemistry and Cell Biology” The we/we wal/wal mice have defects in hair growth and skin layer formation, causing hair loss, useful for understanding alopecia.
January 2000 in “BioScience” The document concludes that understanding hair biology is key to treating hair disorders, with gene therapy showing potential as a future treatment.
7 citations
,
January 1981 in “Springer eBooks” The document concludes that hair biology is complex and there are still unanswered questions about hair loss and follicle changes.
1 citations
,
March 2024 in “Genes & Diseases” EBF1 controls hair type and length.
January 2023 in “Advances in pharmacology and clinical trials” Human hair is a significant sample for various tests in clinical, nutritional, archaeological, and forensic studies.
2 citations
,
January 2020 in “Methods in molecular biology” Scientists created early-stage hair follicles from human skin cells, which could help treat baldness and study hair growth.
45 citations
,
January 1986
127 citations
,
March 2016 in “PLoS ONE” Key genes and pathways crucial for hair follicle development in cashmere goats were identified, aiding fleece production improvement.
August 2012 in “Nature Cell Biology” Hair grows when stem cell offspring in the follicle base proliferate, influenced by the dermal papilla.
235 citations
,
July 1999 in “Journal of biological chemistry/The Journal of biological chemistry” Human hair is made up of different keratins, some strong and some weak, with specific types appearing at various stages of hair growth.
24 citations
,
November 1978 in “Biochemistry” α-type filaments in guinea pig hair follicles have unique structural features.
January 1997 in “Han-guk hyeonmigyeong hakoeji/Applied microscopy” The hair follicle's connection to connective tissue is weaker than the skin's.
81 citations
,
September 2009 in “Birth defects research” Different body areas in mice produce different hair types due to interactions between skin layers.
14 citations
,
July 1983 in “Acta Dermato Venereologica” A method was developed to grow millions of hair cells from a single hair for research and storage.
86 citations
,
June 1998 in “Journal of Investigative Dermatology” The hairless gene mutation causes baldness by disrupting hair follicle structure.
January 2016 in “프로그램북(구 초록집)” Hormones and neuropeptides affect hair growth, with androgens having opposite effects on beard and scalp hair.
Hair can't be as strong as Rapunzel's because it's impractical to scale up due to defects.
13 citations
,
January 2001 in “Pediatric dermatology” A dark-haired Chinese girl had hair that looked banded under certain light but was normal under a microscope.
3 citations
,
July 1990 in “PubMed” Human hair follicles can grow and form structures in a collagen gel, useful for studying hair cell growth.
3 citations
,
March 2009 in “Hirosaki University Repository for Academic Resources (Hirosaki University)” Hirosaki hairless rats have sparse, twisted hair due to missing hair keratin genes.
39 citations
,
February 1990 in “The journal of cell biology/The Journal of cell biology” Trichohyalin, a hair follicle protein, has a part with repeating patterns of 23 amino acids.
April 2017 in “Journal of Investigative Dermatology” A virus protein can activate a pathway that may lead to abnormal hair follicle development.
34 citations
,
July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Human hair growth is influenced by androgen hormones, and red deer mane follicles have similar hormone receptors.
2 citations
,
February 2025 in “Journal of Investigative Dermatology” Progenitor cells randomly decide their roles to maintain hair follicle growth.
14 citations
,
January 2010 in “Dermatology” Some people with congenital triangular alopecia have a central tuft of hair in the bald patch, but the cause is unknown.
2 citations
,
February 2022 in “Genomics” Researchers discovered new cell types in goat hair follicles that could help understand hair regrowth and human hair loss.
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.