umls-concept:C0002191 | skos:definition | MSH: Plasma glycoprotein member of the serpin superfamily which inhibits TRYPSIN; NEUTROPHIL ELASTASE; and other PROTEOLYTIC ENZYMES.,CSP: inflammation-inducible serine protease inhibitor synthesized primarily in liver, then secreted into blood where it accounts for the bulk of blood protease inhibitor activity; is an important regulator of neutrophil elastase. | lld:umls |