The conclusion is that there's a link between high testosterone levels, insulin resistance, and certain skin conditions, regardless of obesity.
2 citations
,
January 1987 in “PubMed” Woolly hair syndrome is a genetic condition causing frizzy, fragile hair.
1 citations
,
April 2024 in “Animal Genetics” A genetic defect in an Appenzeller Mountain Dog caused skin issues, improved with ketoconazole, showing the importance of advanced genetic testing.
28 citations
,
July 1980 in “British Journal of Dermatology” The hair disorder was caused by abnormal protein formation, making hair easily damaged.
March 2026 in “Mendeley Data” March 2026 in “Mendeley Data” January 2026 in “Mendeley Data”
1 citations
,
January 2013 in “Nasza Dermatologia Online” Vitamin B12 deficiency can cause reversible hair color loss in children.
5 citations
,
February 2015 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” OCT can non-invasively diagnose follicular keratosis and other hair follicle disorders.
7 citations
,
March 2000 in “CRC Press eBooks”
August 2024 in “Veterinary Dermatology” Topical ceramide treatment partially improves the skin condition in Jack Russell Terriers with a genetic skin disorder.
A 14-year-old girl with a condition that makes her hair easy to pull out also has a hair-pulling disorder, and treatment helped but she relapsed after a year.
2 citations
,
February 2025 in “Poultry Science” TBX5 gene influences feathered feet in Guangxi chickens by affecting cell growth and movement.
June 2004 in “Journal of Investigative Dermatology” Increased pigmentation may protect skin from UVB, new targets for skin disease treatments were identified, sunscreen ingredients don't affect hormones, TNF-α inhibitors may help diabetic wounds, and certain treatments could prevent chemotherapy-induced hair loss.
The woman's skin and health issues were due to a severe zinc deficiency.
139 citations
,
September 2001 in “The journal of investigative dermatology/Journal of investigative dermatology” Mutations in the Vitamin D receptor gene can cause hair loss similar to mutations in the Hairless gene.
July 2024 in “International Journal of Pharmaceutical Sciences and Medicine” Nyctanthes arbor-tristis is effective for treating many health issues.
14 citations
,
October 2020 in “Scientific reports” Hair greying is linked to reduced ATM protein in hair cells, which protects against stress and damage.
22 citations
,
August 2009 in “Evidence-based Complementary and Alternative Medicine” The composition with carnitine, thioctic acid, and saw palmetto extract may effectively reduce inflammation in hair follicle cells.
4 citations
,
April 1978 in “PubMed” Netherton syndrome in a boy caused skin and hair issues, and treatment didn't work.
2 citations
,
January 2003 in “Dermatologic surgery” The 800-nm pulsed diode laser is a safe and effective long-term treatment for trichostasis spinulosa in dark-skinned individuals.
2 citations
,
October 2016 in “Nutrition in clinical practice” Vitamin B12 deficiency can cause facial dark spots that go away with treatment.
Hair dysplasias involve various hair disorders causing fragility, breakage, and poor hair adhesion.
November 2019 in “European journal of internal medicine” A Laotian man with unusual skin changes and multiple growths in his gut was diagnosed with Cronkhite-Canada Syndrome and improved with nutritional and immune-based treatments.
17 citations
,
August 2012 in “Journal of Medical Genetics” A new mutation in the XEDAR gene might cause a rare skin condition called hypohidrotic ectodermal dysplasia.
7 citations
,
January 2020 in “Journal of Dermatology” Cantu syndrome, which causes excessive hair growth and skin issues, is due to a mutation in the ABCC9 gene, and understanding this could help develop new treatments for hair diseases.
1 citations
,
October 2022 in “Dermatology practical & conceptual” Isolated patchy heterochromia with pili annulati can occur without other health issues.
5 citations
,
March 2005 in “Journal of The American Academy of Dermatology”
9 citations
,
January 2008 in “Medical mycology” A dog's skin infection caused by the fungus Chaetomium globosum was effectively treated with ketoconazole.
6 citations
,
February 2016 in “International Journal of Dermatology” The true cause of hair suddenly turning white is still unknown.