The research found that people's hair proteins vary by individual and body part, with some differences between ethnic groups, which could help in forensics.
April 2020 in “Journal of animal research” Canine hair follicles have stem cells in the bulge region.
2 citations
,
February 2017 in “International Journal of Molecular Sciences” Erdr1 could be a new marker for diagnosing hair loss.
12 citations
,
November 2007 in “Journal of Investigative Dermatology” CD200 is not a reliable marker for identifying stem cells in all skin types.
9 citations
,
September 2022 in “Frontiers in Physics” The technique accurately identifies and evaluates hair follicle structures in skin.
2 citations
,
September 2021 in “Journal of Pathology of Nepal” Most skin cysts were common types found in unusual body parts, and examining tissue samples is important for accurate diagnosis.
1 citations
,
March 2023 in “International Wound Journal” CCN1 may aid wound healing, but more research with larger samples is needed.
1 citations
,
May 2020 in “Journal of The American Academy of Dermatology” Inflammation and fibrosis are important factors in hair loss, but more research with better control samples is needed.
February 2025 in “BMC Veterinary Research” Keratin proteins are crucial for hair growth in cashmere goats.
June 2024 in “Archives of Dermatological Research” SFRP2 and PTGDS may be key factors in female hair loss.
August 2013 in “International Wound Journal” Non-hairy skin cells might be used to regenerate hair, helping with baldness and skin wounds.
June 2010 in “DR-NTU (Nanyang Technological University)” Hair coloring and chlorine change hair strength differently.
April 2023 in “Journal of Investigative Dermatology” TGFβ-2 may cause hair loss in androgenetic alopecia.
March 2005 in “Journal of the American Academy of Dermatology” Hair loss affects men's physical health and women's mental health differently.
567 citations
,
October 2007 in “Clinical and investigative medicine” Hair cortisol can be used to measure long-term stress exposure.
199 citations
,
July 2007 in “General and Comparative Endocrinology” Hair cortisol can reliably indicate chronic stress in cats and dogs.
189 citations
,
January 2014 in “Journal of Visualized Experiments” Hair cortisol analysis effectively measures long-term stress.
158 citations
,
January 2003 in “Journal of Forensic Sciences” Hair testing can detect a single GHB exposure, useful for documenting sexual assault.
128 citations
,
January 1996 in “Journal of analytical toxicology.” Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.
117 citations
,
August 2005 in “Ultramicroscopy” Human hair's strength and flexibility vary by ethnicity, damage, and treatment.
90 citations
,
July 2014 in “Conservation Physiology” Hair cortisol levels in brown bears can be affected by both long-term and short-term stress.
80 citations
,
January 2011 in “Clinical Chemistry and Laboratory Medicine (CCLM)” Hair cortisol levels can reflect salivary cortisol levels in humans.
74 citations
,
March 2006 in “Journal of Chromatography B” Hair analysis is promising for detecting drug misuse in livestock.
72 citations
,
February 1990 in “British Journal of Clinical Pharmacology” Hair analysis can track haloperidol dosage history.
69 citations
,
January 2002 in “Journal of biomedical optics” Dyes can penetrate human skin and hair follicles up to 1.2 mm deep and the sebaceous gland can store dye; Indocyanine Green lotion was made for safe dyeing and monitoring.
68 citations
,
August 2014 in “PeerJ” Human hair proteins vary by individual, body site, and ethnicity, useful for forensics.
63 citations
,
August 1996 in “Forensic Science International” Cosmetic treatments like bleaching and perming can greatly reduce opiate levels in hair, possibly leading to false-negative drug tests.
53 citations
,
November 1997 in “Journal of Forensic Sciences” Darker hair in guinea pigs holds more codeine than lighter hair.
50 citations
,
July 2018 in “Psychoneuroendocrinology” Hair cortisol can indicate long-term stress levels, but hair growth rate differences may affect accuracy.
44 citations
,
February 2016 in “Zoology” Hair cortisol levels in primates are useful for stress assessment but vary by age, sex, species, and hair collection methods.