November 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Skin cells and certain hair follicle areas produce hemoglobin, which may help protect against oxidative stress like UV damage.
4 citations
,
April 2018 in “Journal of Investigative Dermatology” Hydroxypinacolone retinoate is a potent anti-aging ingredient for skin that is more effective and less irritating than other forms of retinoids.
7 citations
,
June 2015 in “European Journal of Plastic Surgery” PRGF treatment safely and effectively helps hair loss.
15 citations
,
April 2016 in “Hormones” Mutations in the NR3C1 gene cause a rare condition that affects hormone signaling and can lead to various symptoms, with dexamethasone as a treatment option.
July 2025 in “The Egyptian Journal of Hospital Medicine” Estrogen affects hair growth, and GPER-1 levels might help identify hair loss types.
35 citations
,
April 2008 in “Journal of Biological Chemistry” Hirosaki hairless rats lack hair due to missing DNA with key keratin genes.
September 2021 in “Yearbook of pediatric endocrinology” Stress hormone stops a growth signal and keeps hair stem cells inactive, reducing hair growth.
39 citations
,
January 2019 in “Cells” Gene therapy has potential as a future treatment for Hutchinson-Gilford progeria syndrome.
29 citations
,
January 2003 in “KARGER eBooks” HVDRR is caused by VDR gene mutations, leading to vitamin D resistance, treatable with high calcium doses, but alopecia remains permanent.
31 citations
,
July 2004 in “Molecular Medicine” Certain defective glucocorticoid receptor mutants move faster inside cell nuclei and work less effectively.
April 2014 in “The FASEB Journal” Geranium Sibiricum L extract may promote hair growth by increasing growth factors and decreasing inhibitory factors under stress.
34 citations
,
March 2007 in “Biochemical and Biophysical Research Communications” Thioredoxin reductase 1 does not affect glucocorticoid receptor activity in hair follicle cells.
62 citations
,
November 2009 in “Aging Cell” Hedgehog signaling helps keep hair follicle stem cells the same in both young and old human skin.
90 citations
,
December 2008 in “Journal of Investigative Dermatology” Thyroid-stimulating hormone affects hair follicles but doesn't change hair growth or color.
September 2025 in “Journal of Intellectual Disability Research” Measuring hair glucocorticoids for stress is moderately feasible, especially in females and those with moderate intellectual disabilities.
October 2023 in “Psychiatry research. Case reports” A new HRAS gene variant may cause a range of symptoms including intellectual disability and psychiatric issues.
Ganoderma lucidum extract may help treat stress-related hair loss.
14 citations
,
July 2010 in “Experimental Dermatology” A new mutation in the HR gene causes hair loss in a specific family.
8 citations
,
April 1997 in “Experimental Dermatology” hHbl gene is active in hair shaft cells and some pilomatricomas.
26 citations
,
October 2002 in “Journal of Investigative Dermatology” A specific gene mutation causes congenital hair loss.
5 citations
,
May 2021 in “Veterinary medicine and science” Injecting cosyntropin into grizzly bears increases blood cortisol but doesn't change hair cortisol levels.
47 citations
,
August 2000 in “Endocrine Reviews” The document concludes that more research is needed to understand excessive hair growth in women with normal hormone levels and regular ovulation.
86 citations
,
February 2009 in “Journal of Neuroscience” Pregnancy increases certain GABAA receptors in rat brains, influenced by steroid levels.
11 citations
,
October 2023 in “mSphere” PrrH sRNA controls pyochelin production in *Pseudomonas aeruginosa*.
1 citations
,
June 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” GTL1 is needed to control root hair growth and prevent problems when there are too many nutrients.
February 1990 in “PubMed” Higher DHEA-S levels in hirsute females affect hair growth phases.
181 citations
,
January 2009 in “Nature Genetics” Certain mutations in a hair growth-related gene cause a type of genetic hair loss.
October 2025 in “Journal of the Endocrine Society” Goserelin injections can effectively manage hyperandrogenism symptoms in postmenopausal women who can't have surgery.
12 citations
,
May 2012 in “Endocrinology and metabolism/American journal of physiology: endocrinology and metabolism” Human scalp hair follicles can be used to study how prolactin affects hair growth and cell death.
June 1984 in “Clinical Biochemistry” Hair chromium levels might indicate chromium status and relate to glucose metabolism issues.