79 citations
,
June 1993 in “Molecular and Cellular Biology” The K5 promoter controls gene expression in skin cells, with specific DNA segments crucial for targeting and regulation.
13 citations
,
October 2002 in “Journal of Investigative Dermatology” The upper half of a human hair follicle can grow a new hair in a mouse, but success is rare.
December 2000 in “Kirk-Othmer Encyclopedia of Chemical Technology” Hair care products are regulated, with shampoos, conditioners, dyes, and styling products designed for cleaning, enhancing, and maintaining hair.
46 citations
,
April 2014 in “PLOS ONE” Gray hair may be caused by lower antioxidant activity in hair cells.
February 2019 in “Psychoneuroendocrinology” Hair samples can reliably show average long-term hormone levels in young women.
December 2023 in “The journal of physical chemistry. B (1997 : Online)” Human hair keratin might be good for filtering out harmful substances from water.
January 2023 in “Research Square (Research Square)” Hair cortisol may be a good indicator of recent mood in people with bipolar disorder.
89 citations
,
December 1998 in “The Journal of Steroid Biochemistry and Molecular Biology” Human hair can be used to measure reproductive hormones.
November 2025 in “Psychoneuroendocrinology” Hair proteomics could be a useful, non-invasive tool for identifying stress-related disorders.
March 2025 in “medRxiv (Cold Spring Harbor Laboratory)” Hair proteomics could be a promising non-invasive way to identify stress-related disorders.
October 2022 in “Linköping University medical dissertations” The method shows hair testosterone levels reflect those in saliva, but are affected by various factors and may indicate a risk for heart attack.
Distal hair cortisol is not a reliable measure of early pregnancy cortisol levels.
October 2008 in “Experimental and Clinical Endocrinology & Diabetes” Long-term unemployment leads to higher stress levels.
18 citations
,
January 2019 in “Experimental Dermatology” Certain cells outside the hair follicle's bulge area can quickly regenerate damaged hair follicles, potentially helping to reduce hair loss from cancer treatments.
Prussian Blue causes hair cuticles to detach, weakening the hair.
27 citations
,
October 1998 in “Differentiation” Basonuclin helps identify and track hair follicle development and cycling in mice.
27 citations
,
January 1995 Melanin in black hair protects it from sun damage better than light-brown hair.
13 citations
,
January 2001 in “Pediatric dermatology” A dark-haired Chinese girl had hair that looked banded under certain light but was normal under a microscope.
12 citations
,
April 2015 in “BMC research notes” Root hairs in cereal crops can grow beyond the usual zone, and using Turface® clay helps study this.
11 citations
,
January 2011 in “Journal of Cutaneous and Aesthetic Surgery” Follicular unit transplant successfully repigmented vitiligo patch on upper lip.
7 citations
,
April 2000 in “Mammalian Genome” A new mutation in mice causes crooked whiskers and messy hair.
5 citations
,
January 1994 in “Skin Pharmacology and Physiology” DNA flow cytometry effectively evaluates how different conditions affect hair growth cell activity.
2 citations
,
September 2008 in “International Journal of Cosmetic Science” Brushing causes more long hair breaks than combing, especially with bleached or wet hair.
November 2021 in “International journal of research - granthaalayah” The document suggests that human hair has electrical charges because of a gap in nerve cell coverage that affects electromagnetic radiation.
July 2005 in “The American Journal of Human Genetics” The AR gene is linked to male-pattern baldness, TNFSF4 to heart disease, SLC19A3 to BBGD, MCT8 to a syndrome, and segmental duplications to genetic variation.
January 1998 in “Differentiation” Basonuclin is crucial for hair follicle development and cycling in mice.
10 citations
,
September 2020 in “Metabolites” Hair color and length affect metabolite profiles in hair, so they should be considered in hair analysis.
23 citations
,
October 2008 in “Experimental and Clinical Endocrinology & Diabetes” Hair can show increased cortisol levels during late pregnancy.
2 citations
,
July 2009 in “Medical hypotheses” Identifying specific hair follicle parts could lead to better hair loss treatments.
1 citations
,
October 2020 Hair can reliably measure average estradiol levels over months in humans and monkeys.