May 2024 in “Frontiers in medicine” A genetic mutation in the LIPH gene causes tightly curled hair that stops growing in some Japanese individuals.
1 citations
,
June 1998 in “Journal of Forestry Research” Mammalian hair scales change from smooth to wavy due to friction.
June 2022 in “Authorea (Authorea)” A 59-year-old woman was diagnosed with a rare hair loss condition called lipedematous alopecia.
53 citations
,
July 2002 in “Journal of Investigative Dermatology” The Dfl mutation in mice causes poor sebaceous gland function and complete hair loss.
7 citations
,
May 1988 in “International Journal of Dermatology” The patient's hair has unique structural differences with alternating bright and dark bands.
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.
18 citations
,
April 2019 in “Archives of Dermatological Research” Lactoferrin helps mice grow hair by increasing cell growth and hair follicle development.
13 citations
,
November 1959 in “Annals of the New York Academy of Sciences” Human hair follicles can grow back.
103 citations
,
July 2001 in “Proceedings of the National Academy of Sciences” TGFβ1 expression in skin causes hair loss and skin thickening, but these effects are reversible.
Researchers found genes in sheep that may affect hair growth and wool quality.
November 2025 in “Skin Health and Disease” Autosomal recessive woolly hair is rare and involves tightly coiled hair without other health issues.
April 2020 in “International journal of research in dermatology” An 8-year-old girl has a rare, irreversible hair loss condition caused by a genetic mutation.
3 citations
,
September 2014 in “SpringerPlus” Human hair loss may have evolved to help increase brain size.
24 citations
,
May 2022 in “BMC Veterinary Research” lncRNAs play a key role in hair follicle development, affecting cashmere quality and yield.
Vogt–Koyanagi–Harada disease can cause rare hair growth on normally hairless thumb skin.
32 citations
,
December 1969 in “The Lancet” Children with marasmus have more resting hair follicles and thinner, less pigmented hair, showing long-term malnutrition.
September 1978 in “Journal of steroid biochemistry/Journal of Steroid Biochemistry”
42 citations
,
September 2000 in “British Journal of Dermatology” Some children are born with unusually short, fine hair because their hair growth phase is short, but this often gets better by itself during puberty.
15 citations
,
December 1972 in “Journal of Investigative Dermatology” 5 citations
,
April 2019 in “DOAJ (DOAJ: Directory of Open Access Journals)” Stopping shaving or removing hair follicles usually resolves Pseudofolliculitis barbae.
33 citations
,
January 2002 Latanoprost, a glaucoma drug, showed potential for promoting hair growth in bald monkeys, especially at higher doses.
August 2018 in “Journal of Investigative Dermatology” Humans evolved to have less hair and more sweat glands than chimpanzees and macaques.
May 2024 in “JAAD Case Reports” A young man was diagnosed with a rare hair loss condition usually seen in older women.
5 citations
,
August 2001 in “International Journal of Dermatology” A 20-year-old had hair loss and skin issues from lichen planopilaris starting at age 10.
13 citations
,
October 2020 in “BMC Genomics” Long non-coding RNAs play a key role in yak hair growth cycles.
2 citations
,
September 1998 in “Der Hautarzt” A gene mutation causes a rare hereditary hair loss, offering potential for new treatments.
July 2025 in “Frontiers in Medicine” Mutations in the LIPH gene cause woolly hair in a child.
1 citations
,
April 2016 in “Journal of The American Academy of Dermatology” The study concludes that Loose Anagen Hair Syndrome is a benign condition that usually improves with age but can be hard to diagnose and stressful for the family.
53 citations
,
August 2015 in “The Italian Journal of Pediatrics/Italian journal of pediatrics” Excessive body hair can signal complex health issues.