OBJECTIVE: To explore the relationship between metabolic syndrome (MS) and the risk for chronic kidney disease (CKD) in premenopausal and postmenopausal women. METHODS: We conducted a cross-sectional study among 1346 community-based women from June to October 2012 and collected the data of personal history, lifestyle, physical measures and laboratory indicators. The diagnosis of CKD was established for an eGFR of less than 60 mL/min per 1.73 m or albuminuria. The diagnosis of metabolic syndrome was based on the International Diabetes Federation Guide. According to an epidemiological survey in Guangdong province, women older than 48.9 years were classified as having a postmenopausal status. The prevalence of MS and CKD was determined in both the premenopausal and postmenopausal women, and the association between MS and CKD was analyzed using logistic regression models. RESULTS: MS was significantly correlated with CKD in premenopausal women in both unadjusted analyses (OR=3.10, 95% : 1.32-7.28, =0.009) and in analysis after adjustment for potential confounders (OR=4.09, 95% : 1.63- 10.32, =0.003). When adjusted for diabetes, hypertension, and hyperuricemia, no correlation was found between MS and CKD in premenopausal women (OR=1.56, 95% : 0.31-7.63, = 0.592); in the unadjusted analyses, MS was significantly correlated with CKD in postmenopausal women ( < 0.001). After further adjustment for age, education status, current smoking, physical inactivity, and current drinking, MS was still significantly correlated with CKD (OR=2.60, 95% : 1.69-3.99, < 0.001). When adjusted for diabetes, hypertension, and hyperuricemia, the correlation between MS and CKD was still significant (OR=1.61, 95% : 1.09-2.37, =0.018). In the unadjusted model, a high blood pressure (OR=2.77, 95%CI: 1.57-4.89, < 0.001), an elevated serum triglyceride level (OR=1.84, 95%: 1.16-2.90, =0.009) and a high fast glucose level (OR=2.07, 95%: 1.30-3.28, =0.002) were all significantly correlated with CKD in postmenopausal women. After adjusting for age, current smoking, current alcohol use, education status and physical inactivity, a high blood pressure (OR=2.28, 95%: 1.22-4.26, =0.01), a high serum triglyceride level (OR=1.71, 95%: 1.03-2.86, =0.039) and a high fast glucose (OR=2.25, 95%: 1.36-3.73, =0.002) were still significantly correlated with CKD in postmenopausal women. Blood pressure, serum triglyceride level, fast glucose, serum HDL cholesterol level and central obesity were not correlated with CKD in either the unadjusted model or adjusted model in premenopausal women ( > 0.05). CONCLUSIONS MS is correlated with CKD in both premenopausal and postmenopausal women, and the association is dependent on diabetes, hypertension, and hyperuricemia in premenopausal women but not in postmenopausal women.
Cross-Sectional Studies ; Female ; Humans ; Metabolic Syndrome ; Postmenopause ; Premenopause ; Renal Insufficiency, Chronic ; Risk Factors

OBJECTIVETo evaluate the effect of dibutyl phthalate (DBP) and di-(2-ethylhexyl) phthalate (DEHP) on urine superoxide dismutase (SOD) activity and malondialdehyde (MDA) content in rats.

METHODSAccording to 2×2 factorial analysis, 60 adult male SD rats were randomized into 10 groups (n=6), including a control group (fed with sesame oil), 3 DBP groups (fed with DBP at the doses of 30, 100 and 300 mg/kg), 3 DEHP groups (with DEHP at 50, 150, and 450 mg/kg), and 3 DBP+DEHP groups (with 30 mg/kg DBP+50 mg/kg DEHP, 100 mg/kg DBP+150 mg/kg DEHP, and 300 mg/kg DBP +450 mg/kg DEHP). The agents were administered in a single dose through gavage in a volume of 2 ml. After the treatments, the 24, 48, 72, and 96 h urine samples were collected to determine the SOD activity and MDA content.

RESULTSDBP and DEHP, either alone or in combination, significantly decreased SOD activity and increased MDA content in the urine collected at 24 h but not at the other time points. Such changes were gradually reversed with time.

CONCLUSIONDBP or DEHP treatment alone can result in significant oxidative damage in the kidney of rats, and the toxic effect of the combined exposure is even more obvious.

Animals ; Dibutyl Phthalate ; toxicity ; Diethylhexyl Phthalate ; toxicity ; Environmental Pollutants ; toxicity ; Kidney ; drug effects ; physiopathology ; Male ; Malondialdehyde ; urine ; Oxidative Stress ; drug effects ; Rats ; Rats, Sprague-Dawley ; Superoxide Dismutase ; metabolism ; urine