has part has part has_part characteristic of part of has modifier cholesterol homeostasis abnormal lipid homeostasis abnormal cholesterol homeostasis anomaly in the processes involved in the maintenance of an internal equilibrium of cholesterol, the principal sterol of vertebrates and the precursor of many steroids, including bile acids and steroid hormones; it is a component of the plasma membrane lipid bilayer and of plasma lipoproteins and can be found in all animal tissues MPheno.ontology MP:0005278 quality abnormal