blood insulin level serum insulin level 2010-11-11T11:39:21Z CMO:0000358 The amount of insulin, the fuel-regulating peptide hormone which is formed from proinsulin in the beta cells of the pancreatic islets and which promotes the storage of glucose and the uptake of amino acids, increases protein and lipid synthesis, and inhibits lipolysis and gluconeogenesis, in a specified sample of serum, the clear liquid that separates from blood after it has clotted completely, i.e. blood plasma from which fibrinogen has been removed. VT:0001560 clinical_measurement_ontology mshimoyama