font size

Definition of Pregnancy-associated plasma protein A

Pregnancy-associated plasma protein A: Abbreviated as PAPPA or PAPP-A. A large zinc-binding protein that acts as an enzyme, specifically a metallopeptidase. The gene for PAPPA is in chromosome band 9q33.1. PAPPA has been used in prenatal genetic screening and studies of atherosclerosis. Women with low blood levels of PAPPA at 8 to 14 weeks of gestation have an increased risk of intrauterine growth restriction, trisomy 21, premature delivery, preeclampsia, and stillbirth. PAPPA is present in unstable atherosclerotic plaques, and circulating levels are elevated in acute coronary syndromes which may reflect the instability of the plaques. PAPPA may be a marker of unstable angina and acute myocardial infarction (heart attack).

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=24602
Last Editorial Review: 6/14/2012

Drug Medical Dictionary of Terms by Letter

Top RxList Drug News

Parenting and Pregnancy

Get tips for baby and you.

advertisement
advertisement
Use Pill Finder Find it Now See Interactions

Pill Identifier on RxList

  • quick, easy,
    pill identification

Find a Local Pharmacy

  • including 24 hour, pharmacies

Interaction Checker

  • Check potential drug interactions
Search the Medical Dictionary for Health Definitions & Medical Abbreviations