May 2013 in “Trends in Urology & Men's Health” Male-pattern hair loss is normal, often involves hormone effects on hair follicles, and can be treated with medication or surgery, but new treatments are being researched.
February 2006 in “Cambridge University Press eBooks” A 45-year-old woman experienced excessive hair shedding beyond the normal range.
86 citations
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May 2002 in “Journal of Investigative Dermatology” A new keratin, hK6irs1, is found in all layers of the hair follicle's inner root sheath.
21 citations
,
July 2005 in “European Journal of Emergency Medicine” Hair-tourniquet syndrome can cause serious toe injuries in infants but can be treated if found early.
20 citations
,
June 2012 in “British Journal of Dermatology” Bleaching hair damages protein structure, especially keratin, leading to weakened hair.
10 citations
,
June 2019 in “Cosmetics” Mixed-race individuals have hair with varied shapes and more root damage.
9 citations
,
February 2021 in “Frontiers in Cell and Developmental Biology” Older mice have stiffer skin with less elasticity due to changes in collagen and skin structure, affecting aging and hair loss.
7 citations
,
March 1986 in “British Veterinary Journal” Canine skin has two main layers: the epidermis and dermis, with a supportive subcutis layer.
6 citations
,
July 2021 in “The anatomical record” Different whale and dolphin species have unique whisker follicle structures, suggesting they might use their whiskers in various ways.
6 citations
,
January 2016 in “JAMA Dermatology” Dirty dots are a common scalp finding in elderly women and can be washed away with shampoo.
3 citations
,
June 2020 in “Cutis” Poor nutrition can lead to skin diseases in hospitalized patients and should be quickly identified and treated.
1 citations
,
January 2011 in “International Journal of Trichology” Hair follicle stem cells have significant potential for treating various disorders.
July 2025 in “Bioma Berkala Ilmiah Biologi” Wild boar skin from Timor Island has three layers with various structures like hair follicles and glands.
November 2022 in “Journal of Drug Delivery and Therapeutics” Unani medicine links diffuse hair loss to poor skin pore function and body dryness, leading to thinning hair.
The "sinuskissen" in cat hair follicles is mostly connective tissue, affecting fluid flow.
211 citations
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November 2018 in “Nature Cell Biology” Stem cells help heal skin wounds by moving and changing roles, working with other cells, and needing more research on their activation and behavior.
191 citations
,
September 2011 in “Cell stem cell” Hair follicle stem cells use specific chromatin changes to control their growth and differentiation.
28 citations
,
March 2010 in “Histochemistry and cell biology” Skin cells can help create early hair-like structures in lab cultures.
20 citations
,
April 2000 in “Experimental dermatology” ODC transgenic mice can model human hair loss with skin lesions.
10 citations
,
November 2019 in “Cold Spring Harbor Perspectives in Biology” Stem cells are more dynamic and adaptable than previously believed.
8 citations
,
July 2019 in “Cell Proliferation” Researchers found a way to turn skin cells into cells that can grow new hair.
4 citations
,
December 1992 in “The American Journal of Cosmetic Surgery” The modified S pattern for scalp reduction is effective for removing more bald scalp and hiding scars in hair restoration.
3 citations
,
September 2014 in “SpringerPlus” Human hair loss may have evolved to help increase brain size.
3 citations
,
March 2014 in “Turkderm” Hair loss in men can be slowed or reversed with treatments like minoxidil and finasteride, but it resumes if treatment stops. It may also indicate early heart disease and obesity.
2 citations
,
July 2010 in “Clinical and Experimental Dermatology” Delaying hair loss treatment reduces its effectiveness.
2 citations
,
July 1996 in “Annals of Internal Medicine” Taking fluconazole for fungal infections might cause hair loss after about 3 months.
1 citations
,
September 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Removing Dicer from pigment cells in newborn mice causes early hair graying and changes in cell migration molecules.
1 citations
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July 2000 in “Dermatologic Surgery” Propofol can easily cause deep sedation, so caution is needed when using it for procedures.
December 2025 in “BJPsych Open” Semaglutide may worsen eating disorders in vulnerable individuals.
Women with PCOS have lower self-esteem and body image satisfaction.