March 2016 in “European Urology Supplements” This study identified that methylation of the 5-AR2 gene promoter is linked to reduced expression of 5-AR2 protein, which may explain why some BPH patients are resistant to finasteride treatment.
November 2013 in “Journal of Mazandaran University of Medical Sciences” This study found that a topical solution of caffeine and minoxidil 2.5% was more effective in treating androgenetic alopecia than minoxidil 2.5% alone.
4 citations
,
April 2001 in “Experimental Dermatology” This study used a novel HPLC-radiomatic flow scintillation system to measure 5α-reductase activity in dermal papillae from miniaturized hair follicles of the human occipital scalp, revealing significant variability in enzyme activity across samples.
December 2022 in “Journal of applied biological chemistry” In this study, Betula platyphylla extract, particularly fraction H3-2, promoted human derma papilla cell proliferation and increased expression of certain growth factors, suggesting potential benefits for hair loss prevention.
January 2007 in “日本看護学会抄録集 成人看護1” This study found that specific residues in human steroid 5alpha-reductase types 1 and 2 influence substrate binding and resistance to the inhibitor Finasteride, with certain substitutions significantly affecting these interactions.