Does pregnancy-associated plasma protein A have a role in allergic rhinitis?
GROUND: Pregnancy-associated plasma protein A (PAPP-A), also known as insulin-like growth factor binding protein 4 protease, is postulated to be a new inflammatory marker in various clinical situations such as cardiovascular events, dialysis, renal transplantation, and asthma. PAPP-A also is produced in high concentrations by trophoblasts during pregnancy. METHODS: We evaluated PAPP-A levels in allergic rhinitis patients and compared these with levels in healthy subjects. Thirty-one newly diagnosed allergic rhinitis patients and 29 healthy controls were included in the study. Serum PAPP-A, IgE, urea, creatinine, aspartate aminotransferase, creatine kinase (CK), CK-MB isoenzyme, total cholesterol, and triglyceride levels were determined. RESULTS: The serum PAPP-A level was significantly higher (p = 0.013) in the allergic rhinitis group (6.1 +/- 2.9 mU/L) than in the control group (4.5 +/- 1.7 mU/L). The PAPP-A level in patients with allergic rhinitis and asthma (6.1 +/- 2.3 mU/L) was no
