157 citations
,
June 2015 in “Psychoneuroendocrinology” Hair cortisol and cortisone levels increase with age, are higher in diabetics, vary by gender, decrease with frequent hair washing, and are lower in winter.
63 citations
,
September 2009 in “Regenerative Medicine” Scientists found a way to grow human hair cells in a lab that can create new hair when transplanted.
59 citations
,
November 2018 in “Psychoneuroendocrinology” Lower levels of certain brain chemicals are linked to worse PTSD symptoms in men.
48 citations
,
September 2020 in “Frontiers in Immunology” Loss of OGG1 increases skin inflammation and auto-antibodies in lupus.
44 citations
,
September 2012 in “Archives of Dermatology” Hair breakage may be an early sign of a hair loss condition called CCCA in African American women.
39 citations
,
May 2014 in “Frontiers in Pharmacology” Special immune cells called Tregs can help prevent lung scarring by blocking a specific growth factor.
32 citations
,
April 2013 in “Anais Brasileiros de Dermatologia” The document concludes that inherited epidermolysis bullosa is a challenging genetic condition requiring multidisciplinary care and new treatments.
29 citations
,
January 2021 in “Translational Psychiatry” The research suggests that Tourette syndrome is linked to both brain signaling and immune system pathways.
28 citations
,
April 2013 in “Fertility and Sterility” Caucasian and Asian women with PCOS generally show similar symptoms, except Asian women have less chest hair.
27 citations
,
June 2020 in “Genes” Lykoi cats' unique sparse hair is linked to specific genetic variants in the Hairless gene.
26 citations
,
January 2019 in “Journal of The American Academy of Dermatology” Dermatologists are important in helping transgender people with skin issues and physical changes during their transition.
24 citations
,
March 2001 in “PubMed” In Freixo de Espada à Cinta, common skin conditions include melanocytic nevi, hemangiomas, and acne, with variations based on age and sex.
21 citations
,
February 2021 in “BMJ case reports” Anabolic steroid users may face higher risk of severe COVID-19.
19 citations
,
June 2021 in “The world journal of men's health” Using anabolic-androgenic steroids can harm men's reproductive health and increase the risk of heart problems and death.
19 citations
,
December 2020 in “Plastic and Reconstructive Surgery” Platelet-rich plasma is used for facial and hair treatments, showing benefits despite varying methods and limited research.
16 citations
,
April 2012 in “Gynecological Endocrinology” Older obese women with PCOS have higher cardiovascular and metabolic risks despite lower androgen levels.
11 citations
,
March 2020 in “American Journal of Medical Genetics Part A” A mutation in the EDNRA gene causes Oro-Oto-Cardiac syndrome, affecting face and heart development.
9 citations
,
April 2016 in “Clinical Endocrinology” Scalp hair 17-OHP and androstenedione levels can help monitor treatment in CAH patients.
9 citations
,
July 2007 in “Circulation Research” Defects in certain proteins cause major heart abnormalities during early development.
8 citations
,
November 2019 in “Clinical Science” High DHA levels delay wound healing and worsen skin repair quality.
7 citations
,
May 2019 in “British Journal of Dermatology” Transgender and nonbinary individuals experience hair loss, with transmen on testosterone seeing more severe hair loss, while feminizing hormones may stabilize hair loss in transwomen.
6 citations
,
January 2025 in “Differentiation” WNT10A is important for tissue development and linked to various human disorders.
5 citations
,
September 2023 in “Archives of Dermatological Research” Hair loss in children with alopecia areata is more common in winter and linked to climate factors like air pressure and sunlight.
5 citations
,
January 1964 in “Naunyn-Schmiedeberg s Archives of Pharmacology” Iodine is absorbed by hair just below the skin surface.
5 citations
,
July 2025 in “Journal of Clinical Medicine” The guidelines standardize mesotherapy practices for safety and effectiveness in pain, rehabilitation, and skin treatments.
4 citations
,
July 2016 in “Journal of cosmetic dermatology” Dermatologists should use hair relaxers carefully to avoid hair and scalp damage, following specific guidelines for application and maintenance.
3 citations
,
February 2021 in “JAMA Dermatology” Masculinizing hormone therapy increases the risk of hair loss in transgender and gender-diverse patients.
3 citations
,
May 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” The unique coat of lykoi cats is likely caused by new variants in the Hairless gene.
2 citations
,
June 2017 in “Journal of The American Academy of Dermatology” The type of PCOS a woman has doesn't strongly predict her skin or metabolic symptoms; obesity is a more important factor.
2 citations
,
January 2017 in “Folia biologica” The KRTAP7-1 gene is very similar across different cattle and yak breeds and likely plays a role in hair strength and shape.