Different hair growth phases affect how follicles respond to X-rays, and hormones like testosterone and dihydrotestosterone play a key role in baldness; transplanted hair can grow on bald scalp areas.
January 2022 in “Current Enzyme Inhibition” New nonsteroidal molecules can potentially increase dihydrotestosterone in neurons by blocking certain enzymes, without affecting prostate and seminal vesicle weight.
April 2009 in “11th European Congress of Endocrinology” Taking 1 mg finasteride for a year reduces dihydrotestosterone levels in men with early hair loss, but doesn't change their metabolic state.
1040 citations,
October 1992 in “The New England Journal of Medicine” Finasteride effectively treats BPH but may increase sexual dysfunction risk.
370 citations,
September 1999 in “The New England Journal of Medicine” Finasteride and minoxidil are effective for hair loss, but continued research is needed for better treatments.
305 citations,
February 2007 in “Hormone and metabolic research” Human skin makes sexual hormones that affect hair growth, skin health, and healing; too much can cause acne and hair loss, while treatments can manage these conditions.
229 citations,
August 2002 in “Experimental Gerontology” AGA causes hair loss by shrinking hair follicles due to DHT binding, and can be treated with finasteride and minoxidil.
227 citations,
January 1998 in “Journal of biological chemistry/The Journal of biological chemistry” Mutations at Val-889 and Arg-752 disrupt key interactions in the androgen receptor, affecting its function.
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.
211 citations,
November 1990 in “The Journal of Steroid Biochemistry and Molecular Biology” Finasteride effectively treats BPH, but needs more trials to understand potential.
209 citations,
September 2008 in “Dermatologic Therapy” Androgens can both increase and decrease hair growth in different parts of the body.
209 citations,
March 1998 in “Biochemical and biophysical research communications” Scientists found new nonsteroidal compounds that can act like natural male hormones and might help treat male fertility and hormone 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.
165 citations,
December 2002 in “Molecular and Cellular Endocrinology” Male hormones, particularly DHT, are linked to male pattern hair loss, and treatments like finasteride can help, but they don't work for postmenopausal women's hair loss, which may have different causes.
160 citations,
April 2008 in “Baillière's best practice and research in clinical endocrinology and metabolism/Baillière's best practice & research. Clinical endocrinology & metabolism” DHT in the human prostate is produced through multiple pathways, not just from testosterone.
153 citations,
April 2009 in “Urology” Prostate cancer was a major health issue in 2009, especially for Black men, and targeting the 5alpha-reductase enzyme could help in its prevention and treatment.
149 citations,
January 2011 in “Nature reviews. Urology” Hormonal interactions, especially involving DHT and estrogen, play a key role in BPH development and treatment.
142 citations,
February 1985 in “Fertility and sterility” Spironolactone reduced hair thickness and some testosterone levels in women with excessive hair growth.
136 citations,
March 1996 in “Journal of the American Chemical Society” Finasteride effectively blocks enzyme causing male pattern baldness.
129 citations,
January 2004 in “Journal of medicinal chemistry” Researchers developed new compounds that target the androgen receptor effectively with fewer side effects.
124 citations,
September 1992 in “Endocrinology” The human type II 5α-reductase gene, linked to certain male health conditions, has a specific structure and low similarity to other related genes.
123 citations,
December 1997 in “Calcified Tissue International” Higher androgen levels and site-specific AR expression cause sex-related skeletal differences, and certain steroids can boost AR expression and androgen effects in bone cells.
122 citations,
November 2010 in “Journal of Dermatological Science” Male pattern baldness involves hormones and cell signals affecting hair growth.
118 citations,
May 2003 in “Toxicological Sciences” Exposure to finasteride in the womb caused lasting reproductive issues in male rats.
111 citations,
May 2001 in “Human reproduction update” Insufficient androgen action in male fetuses can cause genital development issues due to genetic mutations or environmental chemicals.
110 citations,
January 2014 in “The Journal of Sexual Medicine” Testosterone treatment in trans men increases body and facial hair and may lead to hair loss over time, but severe skin issues are rare.
108 citations,
February 2008 in “The Journal of urology/The journal of urology” Inhibiting 5α-reductase can help reduce prostate cancer risk and improve treatment.
102 citations,
July 2020 in “International journal of molecular sciences” Hormones like testosterone and estrogen significantly affect hair growth and structure.
101 citations,
April 1994 in “Baillière's clinical endocrinology and metabolism” 5α-reductase is essential for male sexual development and its inhibitors have potential in treating various conditions related to hormone action.
98 citations,
November 2017 in “Elsevier eBooks” Male accessory sex glands in rats rarely develop tumors and respond to hormones.