May 2021 in “Journal of the Endocrine Society” A 23-year-old woman's missed periods were caused by a rare genetic disorder treated with hormone patches.
March 2020 in “The Egyptian Journal of Histology” Topical olive oil protects mice skin from harmful electromagnetic radiation.
4 citations
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September 2003 in “Livestock Production Science” Epidermal growth factor reduces hair growth, but cortisol does not.
January 1992 in “Proceedings of the New Zealand Society of Animal Production” Ferret hair growth starts between 0 and 4 days after melatonin treatment, with cell growth peaking in the hair germ and declining as the hair matures.
5 citations
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January 2021 in “Animal Production Science” Lipid metabolism affects wool fiber diameter in sheep.
68 citations
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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.
29 citations
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May 2020 in “npj Regenerative Medicine” Immune cells help regulate hair growth, and better understanding this can improve hair loss treatments.
14 citations
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June 2017 in “Immunity” Special immune cells called Treg cells are important for maintaining and regenerating hair by activating a specific growth signal in hair stem cells.
January 2019 in “ARC journal of pharmaceutical sciences” Acne can be managed with various treatments and requires psychological support due to its emotional impact.
April 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” Stress in hair follicle cells increases certain immune-related proteins, which might contribute to hair loss conditions.
36 citations
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May 2016 in “Biomaterials” Endo-HSE helps grow hair-like structures from human skin cells in the lab.
4 citations
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September 2012 in “Journal of dermatological science” The hair follicle's connective tissue is a key source of a certain collagen in human scalp skin.
1113 citations
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August 1999 in “The New England Journal of Medicine” Hair follicle biology advancements may lead to better hair growth disorder treatments.
759 citations
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February 2009 in “Current Biology” Hair follicles are complex, dynamic mini-organs that help us understand cell growth, death, migration, and differentiation, as well as tissue regeneration and tumor biology.
57 citations
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February 2013 in “Journal of Dermatological Science” Improving the environment and cell interactions is key for creating human hair in the lab.
42 citations
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February 2021 in “Signal Transduction and Targeted Therapy” Hair follicle regeneration possible, more research needed.
42 citations
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March 2008 in “Molecular and Cellular Endocrinology” Hormones and neuroendocrine factors control hair growth and color, and more research could lead to new hair treatment options.
10 citations
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January 2014 in “Genetics and Molecular Research” Liaoning Cashmere goat hair follicles show synchronized growth patterns with lowest activity in May.
6 citations
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November 2013 in “International Journal of Radiation Biology” Gamma-rays exposure during the resting phase of hair growth can damage hair regeneration and color in mice.
4 citations
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January 2018 in “Advances in Experimental Medicine and Biology” The document concludes that hair follicles have a complex environment and our understanding of it is growing, but there are limitations when applying animal study findings to humans.
3 citations
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July 2012 in “Sokoto Journal of Veterinary Sciences” As sheep age, their hair fibers and follicles grow larger and more organized, with no significant differences between males and females.
2 citations
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March 2021 in “Molecular Immunology” Dermal macrophages might help regrow hair.
1 citations
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May 2025 in “Animal Bioscience” Four genes affect hair follicle density in goats.
September 2018 in “Cosmetics” Inositol and arginine solutions improve hair follicle health and turnover.
January 2024 in “Journal of applied biological chemistry” Glehnia littoralis and Andrographis paniculata extracts can significantly boost hair growth.
135 citations
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December 2013 in “Seminars in Cell & Developmental Biology” Stem cells in the hair follicle are regulated by their surrounding environment, which is important for hair growth.
54 citations
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June 2003 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Disruptions in hair follicle fibroblast dynamics can cause hair growth problems.
48 citations
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair growth is controlled by specific gene clusters and proteins, and cysteine affects hair gene expression in sheep.
21 citations
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April 1982 in “Genetics Research” Mice with the naked gene have missing or abnormal hair cells.
11 citations
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April 2020 in “Journal of The American Academy of Dermatology” Microinflammation is more intense in smaller hair follicles and may be linked to hair loss.