Fig. 4From: Screening of Natural Compounds for CYP11A1 Stimulation Against Cell Renal Cell CarcinomaSpecificity of the LC–MS/MS method established for quantitation of cholesterol and pregnenolone. Chromatographic profiles of cholesterol (A) and pregnenolone (B) in blank and treated samples. CYP11A1 activity was determined based on the levels of cholesterol and pregnenoloneBack to article page