Human hair can almost fully recover its structure within about 1,000 minutes after being stretched.
January 2021 in “Skin appendage disorders” The report concludes that atypical Brauer nevus is more common in males, present at birth, and often misdiagnosed due to its unusual scalp locations.
December 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Stress can cause a type of hair loss in mice lacking the CCHCR1 gene.
June 2019 in “Journal of evolution of medical and dental sciences” Dermoscopy is useful for tracking alopecia areata treatment, with yellow dots and new vellus hairs being good indicators of hair regrowth.
July 1997 in “Journal of Cutaneous Medicine and Surgery” Finasteride significantly increases scalp hair and prevents hair loss in young and middle-aged men.
136 citations
,
July 2014 in “Proceedings of the National Academy of Sciences of the United States of America” FGF5 gene mutations cause unusually long eyelashes by affecting hair growth regulation.
115 citations
,
August 2014 in “Jo'jig gonghag gwa jaesaeng uihag/Tissue engineering and regenerative medicine” Human hair keratin can be used in many medical applications.
109 citations
,
February 2018 in “CB/Current biology” ERULUS controls root hair growth by regulating cell wall composition and pectin activity.
76 citations
,
January 2007 in “American Journal of Clinical Dermatology” Women with PCOS often have skin problems like excessive hair, acne, hair loss, and dark patches, which can be treated with hormonal and non-hormonal therapies.
75 citations
,
September 2015 in “Acta biomaterialia” Alkylation of human hair keratin allows for adjustable drug release rates in hydrogels for medical use.
67 citations
,
November 2002 in “Journal of The American Academy of Dermatology” The document concludes that careful evaluation is key to diagnose and treat women with hair loss, with tests for thyroid, iron, and hormones as needed.
47 citations
,
September 2004 in “Journal of Biological Chemistry” Hoxc13 regulates specific hair protein genes on mouse chromosome 16.
39 citations
,
October 2018 in “Lupus Science & Medicine” Different types of hair loss in lupus need careful diagnosis for proper treatment.
39 citations
,
June 2012 in “Journal of Structural Biology” Disulfide bonds are crucial for hair structure during keratinization.
36 citations
,
November 2018 in “BMC plant biology” ROXY proteins help plants respond to nitrate shortage by affecting nutrient sensing and growth.
36 citations
,
January 2012 in “International Journal of Trichology” Losing eyelashes or eyebrows can be a sign of many different health problems and needs a careful approach to treat effectively.
33 citations
,
September 2018 in “Frontiers in Microbiology” Human hair shafts inhibit Gram-positive bacteria growth but not Gram-negative bacteria.
33 citations
,
January 1991 in “The Journal of Dermatologic Surgery and Oncology” Incisional slit grafting for hair transplantation gives natural-looking results and has a high success rate.
25 citations
,
March 2009 in “Dermatologic Surgery” Eyebrow transplantation can be successful for Asians with the right technique and care, but regular maintenance is necessary.
22 citations
,
January 2006 in “Journal of Structural Biology” Hair follicles form hard α-keratin filaments in four steps, showing structural differences.
21 citations
,
May 2005 in “Journal of the American Veterinary Medical Association” The exact cause of growth hormone-responsive alopecia in dogs is unclear.
19 citations
,
July 1994 in “Journal of Dermatological Science” Human hair keratin genes are similar to mouse genes and are specifically expressed in hair follicles.
16 citations
,
February 2018 in “Journal of Cosmetic Dermatology” Carboxytherapy may help increase hair growth in alopecia patients but requires ongoing treatment.
13 citations
,
December 2005 in “Traffic” Syntaxin 9 helps in transporting and signaling of the EGF receptor in skin and stomach cells.
12 citations
,
January 2016 in “Skin appendage disorders” Repeated botulinum toxin injections for forehead wrinkles may cause hairline recession in some women.
10 citations
,
January 2007 in “Journal of cosmetic and laser therapy” The IPL device is safe, effective, and has high patient satisfaction for hair removal.
9 citations
,
February 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” The document concludes that the human keratin gene cluster is complex, with a need for updated naming to reflect over 50 functional genes important for hair and skin biology.
8 citations
,
January 1996 in “Springer eBooks” Male pattern baldness may be caused by factors like poor blood circulation, scalp tension, stress, and hormonal imbalances, but the exact causes are still unclear.
7 citations
,
July 2024 in “Animals” The Shh gene controls cell growth and death in cashmere goat hair follicles, affecting hair growth.
7 citations
,
August 2008 in “Cases Journal” A hair tightly wrapped around a toddler's toe caused severe crying and was treated by surgery.