21 citations
,
October 2009 in “Dermatology” This study found that male pattern hair loss may be associated with differences in serum levels of androstenedione, cortisol, 17 beta-estradiol, and luteinizing hormone, compared to controls.
16 citations
,
March 2000 in “Clinical Biochemistry” In this study, women with androgenic alopecia showed increased excretion of steroid metabolites and heightened 5α-reductase activity, suggesting these may contribute to the condition's hormonal abnormalities.
24 citations
,
October 1994 in “Fertility and Sterility” This study suggests that in women with androgenic alopecia and men with premature balding, enhanced 5α-reductase activity and altered androgen conjugation, favoring sulfurylation, may be involved in scalp hair loss.
51 citations
,
January 1989 in “Journal of Investigative Dermatology” This study found that sebaceous glands in bald scalp have greater androgen binding affinity and capacity than those in hairy scalp, possibly contributing to the androgenic response seen in male pattern baldness.
52 citations
,
March 1987 in “Journal of the American Academy of Dermatology” This study found that men with rapidly progressive male pattern baldness had elevated serum dehydroepiandrosterone sulfate levels, suggesting that adrenal hyperactivity may contribute to alopecia in genetically susceptible young men.
29 citations
,
September 1983 in “British Journal of Dermatology” This study found that men with androgenetic alopecia had significantly lower levels of sex hormone binding globulin and higher salivary testosterone compared to controls, while plasma testosterone levels did not differ.
