216 citations
,
November 1999 in “Fertility and Sterility” Testing basal 17-HP levels is a good way to screen for nonclassic adrenal hyperplasia in women with high androgen levels.
24 citations
,
May 2019 in “PLOS genetics” Mutations in the HEPHL1 gene cause abnormal hair and cognitive issues.
403 citations
,
November 2005 in “Journal of Endocrinology” Dehydroepiandrosterone (DHEA) is a prohormone important for producing sex steroids and has potential health benefits.
December 2017 in “Elsevier eBooks” The vitamin D receptor helps maintain hair and bone health even without binding vitamin D.
11 citations
,
May 1996 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” The main enzyme found in pubic skin that could be targeted to treat excessive hair growth is 5 alpha-R2.
11 citations
,
January 2017 in “Biochemical and biophysical research communications” 1α,25-dihydroxyvitamin D3 directly affects cartilage growth and development.
January 2025 in “Pakistan Journal of Health Sciences” The Cyp11a1 gene variation has a weak link to PCOS, but higher di-hydro-testosterone levels are found in PCOS patients.
218 citations
,
December 2011 in “Advances in Urology” The document concludes that the 5 alpha-reductase enzymes are important in steroid metabolism and related to various human diseases, with inhibitors used to treat conditions like male pattern baldness and prostate issues.
4 citations
,
January 2010 in “Acta dermato-venereologica” Low androgen levels can still cause female pattern hair loss.
53 citations
,
May 1996 in “The Journal of Clinical Endocrinology & Metabolism” Different mutations in the 5 alpha-reductase-2 gene were found in affected individuals in the Dominican Republic, suggesting no common ancestry.
22 citations
,
January 2008 in “Physiological Research” Steroid sulfatase is important for activating hormones that affect memory, brain function, and certain diseases, and could be a target for treating hormone-related disorders.
August 2025 in “International Journal of Contemporary Pediatrics” HLD10 can include increased body hair and Mongolian spots.
2 citations
,
September 1992 in “Steroids” New A-homo-B, 19-dinor steroids showed strong antiandrogenic activity without affecting the enzyme 5α-reductase or androgen receptor binding.
26 citations
,
August 2009 in “Journal of Pediatric Gastroenterology and Nutrition” Hoyeraal-Hreidarsson syndrome in infants causes severe gastrointestinal issues.
179 citations
,
May 1982 in “The Journal of clinical investigation/The journal of clinical investigation” High levels of 3 alpha-diol glucuronide in the blood are a marker of increased androgen action in women with excessive hair growth of unknown cause.
232 citations
,
January 2002 in “Mechanisms of development” Different enzymes are active in different parts of developing mouse organs.
11-oxyandrogens are linked to excess hair growth in PCOS, but don't help diagnose it.
May 2026 in “BMC Medicine” ACOD1 deficiency worsens hair loss by causing cell aging and mitochondrial problems, but 4-OI may help.
40 citations
,
March 2016 in “The Journal of Clinical Endocrinology & Metabolism” Young girls whose mothers have PCOS may have higher activity of a specific enzyme that could lead to developing PCOS later.
3 citations
,
December 2000 in “International Journal of Cosmetic Science” The study created a new method to test drugs that affect hormone processing in skin.
22 citations
,
January 2017 in “Journal of steroid biochemistry and molecular biology/The Journal of steroid biochemistry and molecular biology” A new method accurately measures nine specific hormones in human blood.
4 citations
,
February 2023 in “Journal of steroid biochemistry and molecular biology/The Journal of steroid biochemistry and molecular biology” The study found that certain mutations in the vitamin D receptor can cause rickets and potentially affect hair growth.
53 citations
,
May 2010 in “Journal of Cellular Physiology” Mice without Vitamin D receptors have hair growth problems because of issues in the hedgehog signaling pathway.
1 citations
,
January 2003 in “Expert Opinion on Therapeutic Patents” Steroid sulfatase inhibitors could potentially treat hormone-related disorders like certain cancers, hair loss, acne, and improve cognitive dysfunction.
October 1990 in “Pediatric Research” Nocturnal calcium infusions improved a boy's severe rickets without causing hair loss.
510 citations
,
August 2006 in “Endocrinology” The vitamin D receptor is involved in multiple body functions beyond calcium regulation, including immune response and rapid reactions not related to gene activity.
42 citations
,
April 2013 in “Steroids” Non-classic congenital adrenal hyperplasia is a common disorder causing symptoms like acne and infertility, and it's managed based on symptoms, not just test results. Treatment can improve fertility and reduce miscarriage risk.
2 citations
,
November 2024 in “JCEM Case Reports” Inhaled substances in e-cigarettes can cause hormone imbalances similar to congenital adrenal hyperplasia.
November 2023 in “Scientific reports” The research identified and described a gene important for hormone conversion in endangered catfish, which varies in activity during different reproductive stages and after hormone treatment.
65 citations
,
December 1986 in “The Journal of Clinical Endocrinology & Metabolism” The woman had a genetic condition causing high cortisol and androgen levels, treatable with dexamethasone.