5 citations
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June 2022 in “Biophysical Journal” TGF-β and TNF influence hair follicle cell fate, with TNF being more effective in triggering cell death.
231 citations
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December 1999 in “Journal of Investigative Dermatology” Hair follicle size is mainly influenced by the number of cells and extracellular matrix volume, with cell number having a larger impact.
10 citations
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June 1999 in “Veterinary Dermatology” Two cows had a rare hair disorder causing hair loss but were otherwise healthy.
19 citations
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December 2008 in “Journal of The American Academy of Dermatology” The authors suggest that a new type of hair loss exists, which is different from alopecia areata.
6 citations
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December 1990 in “PubMed” Keratinocytes in hair follicles differentiate similarly to skin cells, with specific patterns in different regions.
19 citations
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September 2016 in “Journal of the European Academy of Dermatology and Venereology” Trichofolliculoma is a unique benign tumor mainly affecting middle-aged adults' faces, often misdiagnosed without histopathology.
November 2022 in “Journal of the Endocrine Society” A woman's small ovarian tumor causing high androgen levels was missed by several scans but found during surgery.
148 citations
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October 1997 in “Journal of Investigative Dermatology”
December 2007 in “CRC Press eBooks” Alopecia areata incognita causes widespread hair loss without patches and needs a scalp biopsy for diagnosis.
5 citations
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January 2017 in “Dermatologic Surgery” Storing hair follicle micrografts for longer times can cause them to enter a state similar to the natural hair shedding phase, which might impact hair transplant results.
July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair growth cycles need varied signals in space and time.
40 citations
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June 2013 in “Biomaterials” Scientists created 3D hair-like structures that could help study hair growth and test treatments.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Developing hair follicles form from ring-shaped patterns, with future stem cells originating from the outer ring, not the upper layers, as previously thought.
8 citations
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February 1994 in “Archives of Dermatology” Basaloid follicular hamartoma's appearance can be similar to other skin conditions, and diagnosis should consider both the look and behavior of the tumor.
7 citations
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January 2020 in “Scientific Reports” Rabbit skin analysis showed changes in hair growth and identified miRNAs that may regulate hair follicle development.
July 2020 in “Experimental Dermatology” Aging causes hair thinning in women due to changes in the scalp environment.
March 2004 in “Journal of The American Academy of Dermatology” Women with lupus experienced non-scarring hair loss with fewer hair follicles, and the test for lupus in hair was not helpful.
8 citations
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September 2024 in “BMC Genomics” circCFAP20DC helps goat ovarian cells grow, aiding follicle development.
6 citations
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April 2009 in “Fertility and Sterility” Finasteride helps induce ovulation in nonresponder PCOS women.
May 2025 in “Journal of the ASEAN Federation of Endocrine Societies” Postmenopausal women with unusual hair growth should be checked for ovarian tumors.
5 citations
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November 2001 in “PubMed” An 80-year-old woman's severe hair loss was caused by a hormone-secreting ovarian tumor.
44 citations
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January 2006 in “Biological & Pharmaceutical Bulletin” Androgen hormones cause hair follicle scarring in hair loss, and finasteride helps reduce it.
April 2017 in “Journal of Investigative Dermatology” Scientists created a tiny, 3D model of a hair follicle that grows and acts like a real one.
January 2024 in “International Journal of Trichology” Recognizing perinevoid alopecia and concentric regrowth is important for diagnosing and treating alopecia areata.
2 citations
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May 2015 in “PloS one” Hair follicle pores help cell survival and growth, even after radiation.
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.
October 2025 in “The Sri Lanka Journal of Dermatology” Inverted follicular keratosis can look like cancer but is actually a harmless tumor.
Lack of Fgf21 slows hair growth by affecting gene interactions.
19 citations
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July 2004 in “Clinical and experimental dermatology” Acneiform follicular mucinosis can be controlled with systemic corticosteroids.
26 citations
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October 1996 in “Journal of Endocrinology/Journal of endocrinology” Goat hair follicles have insulin-like growth factor-I receptors that might affect hair growth, but no melatonin receptors were found.