March 2026 in “Journal of Skin and Sexually Transmitted Diseases” Long hair can cause hair loss in the middle of the scalp, and cutting it shorter helps.
37 citations
,
January 2008 in “Gynecological Endocrinology” Shorter CAG repeats in a specific gene may increase male hormone activity and symptoms like acne and excess hair in women with PCOS.
173 citations
,
January 2014 in “Nature Cell Biology” Wnt signaling controls whether hair follicle stem cells stay inactive or regenerate hair.
1 citations
,
March 2024 in “Genes & Diseases” EBF1 controls hair type and length.
22 citations
,
March 1994 in “Journal of Heredity” A mutation in mice causes hair loss and immune problems.
5 citations
,
September 2015 in “PLoS ONE” Gelfoam® histoculture supports long-term hair and nerve growth in mouse whisker follicles.
March 2014 in “Journal of The American Academy of Dermatology” Vitamin D deficiency is common in temporary hair loss, and stress is often a suspected cause.
September 2016 in “Journal of dermatological science” The conclusion is that the variation in hair thinness in patients is mostly due to the amount of underdeveloped hairs, and treatments that thicken fine hairs might work for those with mild to severe conditions.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” T cells with memory features grow in number and gather around hair follicles when there are not enough immune cells.
20 citations
,
December 2015 in “Journal of Pharmacopuncture” Thread-embedding therapy helped hair grow back in mice and might do the same in humans.
287 citations
,
July 2001 in “Journal of Cell Science” The study found 65 intermediate filament genes, including new keratins, and suggested updating keratin naming.
52 citations
,
February 2012 in “PloS one” Lack of Ctip2 in skin cells delays wound healing and disrupts hair follicle stem cell markers in mice.
26 citations
,
March 1986 in “Clinical and Experimental Dermatology” Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.
59 citations
,
September 2007 in “Biochemical and Biophysical Research Communications” The TRPV3 gene mutation affects hair growth by keeping mice in the growth phase longer, which could help treat hair loss.
37 citations
,
January 1993 in “Journal of Investigative Dermatology”
May 2012 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” A simple method using the wash test and dermatoscopy can help differentiate between two hair loss conditions, androgenetic alopecia and chronic telogen effluvium.
November 2021 in “Zenodo (CERN European Organization for Nuclear Research)” Understanding the 2D:4D digit ratio in vitiligo patients may help in clinical assessments.
1 citations
,
June 2017 in “Nature Reviews Immunology” Immune cells called Treg cells are essential for hair growth and regeneration.
6 citations
,
January 2010 in “Springer eBooks” SA linked to mitochondrial issues and oxidative stress, while AGA involves disrupted hair growth genes.
3 citations
,
March 2012 in “Pediatric Dermatology” The girl with long eyelashes and hair loss was monitored over time to understand and manage her condition better.
92 citations
,
February 2005 in “Journal of Investigative Dermatology”
9 citations
,
January 2017 in “Annals of Dermatology” The study found genetic differences related to hair development that may explain hair loss in a patient with Trichorhinophalangeal syndrome type I.
2 citations
,
December 2015 in “International Journal of Dermatology” Washing test helps identify hair loss type, low iron levels significant.
6 citations
,
January 2012 in “Springer eBooks” Trichoscopy is not specific for diagnosing telogen effluvium and both telogen effluvium and androgenetic alopecia often occur together.
April 2018 in “Journal of Investigative Dermatology” Older hair follicle stem cells have a reduced ability to renew themselves, leading to more hair loss.
1 citations
,
June 2011 in “Journal of Genetics” Some human genetic markers work for genetic studies in pig-tailed and stump-tailed macaques, which can help in their conservation.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Researchers made a detailed map of gene activity for different parts of human hair follicles to help create targeted hair disorder treatments.
62 citations
,
March 2008 in “American Journal of Human Genetics” Hair loss gene found on chromosome 3q26.
August 2025 in “Animal Bioscience” m6A methylation affects the thickness of Alpine Merino wool fibers.
75 citations
,
October 1996 in “Dermatologic Clinics” Chronic Telogen Effluvium is a hair loss condition in middle-aged women that usually doesn't lead to complete baldness.