Association between advanced oxidation protein products (AOPP) and vascular calcification in uremic patients

OBJECTIVE: To investigate the correlation between serum advanced oxidation protein products (AOPP) and vascular calcification in uremic patients.

PATIENTS AND METHODS: The general data of included subjects were collected, and the serum AOPP, intact parathyroid hormone (iPTH), creatinine (Cre), Urea, calcium (Ca), phosphorus (P), total cholesterol (TC), triglyceride (TG), low density lipoprotein cholesterin (LDL-C), hemoglobin (Hb) and albumin (ALB) were detected. Coronary artery computed tomography (CT) scan was performed and the coronary arterial calcification score (CACS) was calculated; the whole abdomen CT scan was performed and abdominal aortic calcification index (AACI) was calculated. SPSS l9.0 software was used for data analysis.

RESULTS: The coronary artery CT and detection of serum indexes showed that AOPP in positive coronary arterial calcification group was significantly increased compared with that in negative coronary arterial calcification group (59.14 ± 14.57 vs. 37.59 ± 5.31) μmol/L. The whole abdomen CT and detection of serum indexes showed that AOPP in positive abdominal aortic calcification group was significantly increased compared with that in negative abdominal aortic calcification group (60.32 ± 15.43 vs. 39.57 ± 6.25) μmol/L. AOPP in severe calcification group was significantly higher than negative group (70.72 ± 18.18 vs. 39.57 ± 6.25) μmol/L. There were no significant differences in AOPP between hypertension and non-hypertension groups, diabetic nephropathy and non-diabetic nephropathy groups. Correlation analysis showed that AOPP of uremic patients had a significantly positive correlation with logl0[CACS+1] and had a significantly positive correlation with inferior AACI.

CONCLUSIONS: AOPP in positive coronary arterial calcification group and positive abdominal aortic calcification group was higher than that in negative group and AOPP in severe calcification group was significantly higher than that in negative group. AOPP of uremic patients has a significantly positive correlation with CACS and AACI.

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