CHOLESTEROL is a sterol in the cell membranes, and is transported in the bloodstream of all animals. Elevated levels (hypercholesterolemia) have been associated with cardiovascular diseases such as atherosclerosis; whereas, low levels (hypocholesterolemia) may be linked to depression, cancer and cerebral hemorrhage. Amiscience's Cholesterol Assay uses a single Working Reagent that combines cholesterol ester hydrolysis, oxidation and color reaction in one step. The fluorescence intensity, measured using FluoroQuik handheld fluorometer (ex/em = 530/590nm), is directly proportional to total cholesterol concentration in the sample.