61 citations,
September 2010 in “Journal of Dermatological Science” Stress hormones and autoimmune reactions can cause hair loss.
38 citations,
August 2012 in “Biochemical and biophysical research communications” Human leukocytes and beard hair follicle cells have internal daily clocks, and PER1 and PER3 genes may indicate individual circadian rhythms.
7 citations,
January 2013 in “Animal Production Science” Altering maternal cortisol during pregnancy can improve wool growth in Merino sheep.
6 citations,
September 2010 in “Animal” Selecting Angus cattle for earlier puberty lowers prolactin levels but doesn't affect hair growth.
5 citations,
October 2021 in “Signal Transduction and Targeted Therapy” Stress hormone corticosterone suppresses hair growth by affecting stem cell activity and Gas6 protein expression.
1 citations,
December 2018 in “Veterinary dermatology” The hair coat disorder in Schipperkes is similar to Alopecia X and involves increased androstenedione levels and hair cycle arrest.
September 2021 in “Yearbook of pediatric endocrinology” Stress hormone stops a growth signal and keeps hair stem cells inactive, reducing hair growth.
August 2006 in “Experimental dermatology” Human scalp hair follicles can produce and respond to several hormones, affecting hair growth and pigmentation.
May 2021 in “Journal of the Endocrine Society” A woman's hair loss and other symptoms were due to a rare hormone deficiency treatable with steroids.
January 1989 in “Handbook of experimental pharmacology” Drugs can change hair growth and this is important because it can upset people.
21 citations,
January 1991 in “Dermatology” Men with male pattern hair loss have different levels of certain hormones compared to men without hair loss.
4 citations,
May 2021 in “Dermatologic Clinics” The conclusion is that hair loss in women is caused by a mix of hormonal, environmental, and genetic factors, and treatments should target these various causes.
4 citations,
November 2016 in “Dermatologic Therapy” Topical tretinoin may increase beard hair density.
Women with androgenetic alopecia have normal levels of most blood steroids and binding proteins, but higher dehydroepiandrosterone. Some also have low "sex hormone-binding globulin" and "corticosteroide-binding globulin" capacity, and high "free androgen index" and "free cortisol index". Diane treatment can normalize these levels and improve hair conditions.
1 citations,
September 2020 in “Endocrinology, Diabetes & Metabolism Case Reports” The conclusion is that thorough investigation of hypertension and hormonal dysfunctions is important, and there may be a link between these conditions and cancer.
375 citations,
July 2006 in “Journal of Investigative Dermatology” Stress can worsen skin and hair conditions by affecting the skin's immune response and hormone levels.
46 citations,
August 1990 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” Ketoconazole reduced hair growth and improved acne in women, but caused side effects needing careful monitoring.
23 citations,
January 1994 in “Skin Pharmacology and Physiology” Hair loss in men and women is linked to high stress hormone levels and other hormonal imbalances, suggesting treatments should be customized to each person's hormones.
18 citations,
October 1978 in “The journal of investigative dermatology/Journal of investigative dermatology” Excess vitamin A causes lasting gland changes in mouse hair follicles.
1 citations,
September 2017 in “Journal of Investigative Dermatology” Blocking a specific enzyme can reduce the negative impact of stress hormones on hair growth cells.
February 2023 in “Journal of medical primatology” Pair housing reduces stress behaviors and health issues in quarantined rhesus macaques.
May 2020 in “Research Square (Research Square)” Stress hormone CRF causes hair loss and inhibits hair growth in human cells.
January 2020 in “Research Square (Research Square)” Stress hormone CRF causes hair loss and stops hair cell growth.
January 2018 in “Hair transplant forum international” Nutrafol might help reduce hair loss due to inflammation, but more evidence is needed.
August 2015 in “Arquivo Brasileiro de Medicina Veterinária e Zootecnia/Arquivo brasileiro de medicina veterinária e zootecnia” Caffeine intake during pregnancy and lactation can cause skin lesions in mother rats and their babies, not linked to cortisol levels.
December 2011 in “Korean journal of veterinary research” A Miniature Pinscher dog with hair loss and scaling was diagnosed with pattern alopecia and improved with melatonin treatment.
March 2023 in “European journal of internal medicine” The patient's long-term symptoms were due to Sheehan's syndrome, which improved with hormone therapy.
April 2023 in “Research Square (Research Square)” A 24-year-old woman had a rare ovarian tumor that caused male-pattern hair growth and was hard to diagnose and treat.
October 2024 in “World Journal of Psychiatry” Stress worsens hair loss in androgenetic alopecia.
Women with androgenetic alopecia (hair loss) have normal prostate specific antigen levels but higher testosterone levels.