July 2021 in “Advances in laboratory medicine” Diagnosing sex development disorders requires combining medical history, physical exams, imaging, lab tests, and genetic data.
March 2012 in “Journal of Pediatric and Adolescent Gynecology” Doctors vary in how they initially test for PCOS, but most agree on using oral contraceptives and lifestyle changes as first treatments.
October 2003 in “Journal of Investigative Dermatology Symposium Proceedings” Mice treatments didn't grow hair, a patient treatment may affect immune response, and people with hair loss often feel anxious or depressed.
245 citations,
October 2015 in “Nature medicine” Hair follicle-derived IL-7 and IL-15 are crucial for maintaining skin-resident memory T cells and could be targeted for treating skin diseases and lymphoma.
192 citations,
March 2017 in “Cell host & microbe” Hair follicle development and microbes help regulatory T cells gather in newborn skin.
64 citations,
March 2006 in “Food Chemistry” The triterpenoids from Ganoderma lucidum can block testosterone effects and may help treat enlarged prostate.
60 citations,
February 2010 in “Gynecological Endocrinology” Metformin combined with lifestyle changes improves insulin resistance and reduces testosterone levels in women with PCOS more than lifestyle changes alone.
56 citations,
July 2008 in “European journal of endocrinology” Metformin and rosiglitazone improve blood vessel function in women with PCOS, with metformin also reducing insulin resistance and testosterone levels.
51 citations,
November 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Beard cells, unlike scalp cells, produce growth factors in response to testosterone, which may explain differences in hair growth.
48 citations,
November 1992 in “Clinical Endocrinology” Long-term finasteride use doesn't change bone density or metabolism.
46 citations,
May 2012 in “Molecular and Cellular Endocrinology” Human skin produces sex hormones like estrogen and testosterone, influenced by ARO and StAR, which may affect skin elasticity and hair growth.
46 citations,
October 2009 in “Archives of Dermatology” Loose anagen hair syndrome, often affecting young girls, can be diagnosed with a hair-pull test and usually gets better on its own, but severe cases may need treatment.
42 citations,
May 2007 in “Endocrinology and metabolism/American journal of physiology: endocrinology and metabolism” Testosterone can build muscle and bone without enlarging the prostate when a specific enzyme is blocked.
39 citations,
April 2019 in “The journal of immunology/The Journal of immunology” Malt1 protease is essential for regulatory T cell function and could be targeted to boost antitumor immunity.
24 citations,
November 2015 in “Annals of Nutrition and Metabolism” Certain SHBG gene variants, like rs727428, are linked to higher testosterone levels in women with PCOS.
23 citations,
June 2015 in “Clinica Chimica Acta” Researchers found potential urine markers for polycystic ovary syndrome, including testosterone-glucuronide and 11α-hydroxyprogesterone, which may help diagnose the condition.
22 citations,
August 2011 in “Endocrine Practice” Most hirsutism cases are due to PCOS, and treatment focuses on lowering testosterone and blocking its effects.
19 citations,
August 1999 in “European journal of endocrinology” The study concluded that testing hormone levels after stimulation is not reliable for identifying carriers of 21-hydroxylase deficiency; genetic testing is necessary.
19 citations,
March 1998 in “Endocrinology” Male rats have more somatostatin neurons than females due to testosterone converting to estrogen during early development.
19 citations,
January 1997 in “Endocrinology” Testosterone can slow hair growth in adult monkeys, but a blocker called RU 58841 can counteract this and potentially help hair regrow.
14 citations,
October 2016 in “Physiological Research” Alfacalcidiol and metformin together lowered testosterone in women with PCOS, but did not significantly improve acne, hair growth, or pregnancy rates.
12 citations,
December 2020 in “Comprehensive psychoneuroendocrinology” Hormone levels in hair change during pregnancy, with progesterone increasing significantly compared to non-pregnant women.
12 citations,
October 2018 in “Aging male/The aging male” Higher BMI and lower testosterone are linked to more aggressive prostate cancer.
12 citations,
August 2000 in “Fertility and Sterility” Topical finasteride doesn't reduce DHT levels, hinting at an endocrine role in hair loss.
9 citations,
October 1993 in “The Journal of Clinical Pharmacology” Finasteride doesn't affect antipyrine metabolism, so interactions with cytochrome P-450 enzyme drugs are unlikely.
8 citations,
April 1988 in “Journal of endocrinological investigation” Topical spironolactone cream doesn't cause hormone-related side effects in the body.
8 citations,
January 1986 in “Journal of hepatology” Men with liver cancer have higher levels of a specific testosterone byproduct in their liver and blood, despite overall lower male hormone levels.
6 citations,
April 2016 in “Journal of the Formosan Medical Association” Metformin improved insulin resistance and BMI in overweight Taiwanese women with PCOS, and a 2-hour insulin test may be a good screening tool.
3 citations,
February 2020 in “Dermatologic Therapy” Reducing micro-inflammation didn't change hair growth patterns in AGA.
2 citations,
January 2022 in “Clinical, Cosmetic and Investigational Dermatology” The refined wash test is a reliable way to measure daily hair loss and can tell the difference between different types of hair loss.