Cholesterol has many physiologic roles.
cholesterol is a component of all cell membranes and membranes of intracellular organelles.
cholesterol is required for synthesis of certain hormones (estrogen, progesterone, testosterone, adrenal corticosteroids) and for
synthesis of bile salts, which are needed to absorb and digest dietary fats.
cholesterol is deposited in the stratum corneum of the skin, where it reduces evaporation of water and blocks
transdermal absorption of water-soluble compounds.
Lehne 2010
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