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Article in English | WPRIM | ID: wpr-878316


Objective@#The relationship between serum uric acid (SUA) levels and glycemic indices, including plasma glucose (FPG), 2-hour postload glucose (2h-PG), and glycated hemoglobin (HbA1c), remains inconclusive. We aimed to explore the associations between glycemic indices and SUA levels in the general Chinese population.@*Methods@#The current study was a cross-sectional analysis using the first follow-up survey data from The China Cardiometabolic Disease and Cancer Cohort Study. A total of 105,922 community-dwelling adults aged ≥ 40 years underwent the oral glucose tolerance test and uric acid assessment. The nonlinear relationships between glycemic indices and SUA levels were explored using generalized additive models.@*Results@#A total of 30,941 men and 62,361 women were eligible for the current analysis. Generalized additive models verified the inverted U-shaped association between glycemic indices and SUA levels, but with different inflection points in men and women. The thresholds for FPG, 2h-PG, and HbA1c for men and women were 6.5/8.0 mmol/L, 11.0/14.0 mmol/L, and 6.1/6.5, respectively (SUA levels increased with increasing glycemic indices before the inflection points and then eventually decreased with further increases in the glycemic indices).@*Conclusion@#An inverted U-shaped association was observed between major glycemic indices and uric acid levels in both sexes, while the inflection points were reached earlier in men than in women.

Aged , Asian Continental Ancestry Group , Blood Glucose/analysis , China/epidemiology , Cohort Studies , Diabetes Mellitus/blood , Female , Glucose Tolerance Test , Glycated Hemoglobin A/analysis , Glycemic Index , Humans , Male , Middle Aged , Uric Acid/blood
Journal of Preventive Medicine ; (12): 786-789, 2017.
Article in Chinese | WPRIM | ID: wpr-792647


Objective To explore the association between estimated glomerular filtration rate (eGFR) and metabolic syndrome (MS) . Method The data were from the China Health and Nutrition Survey (CHNS) . The data included the physical measurement and biochemical markers of adults of CHNS in 2009. Finally, 7309 individual observations were included in the analysis. Results According to the criteria of MS, 2034 patients were diagnosed as MS, and the prevalence was 27.83%. There were 1508 (74.14%) patients had moderate reduced eGFR in MS patients, and 3357 individuals (63.64%) were diagnosed as moderate reduced eGFR in non-MS patients. There was significant difference between two groups (X2=72.13, P<0.001) . The incident of moderate reduced eGFR was positively associated with fasting plasma glucose (OR=1.22, 95%CI: 1.06-1.42, P=0.005), triglyceride (OR=1.21, 95%CI: 1.05-1.38, P=0.005) and negatively associated with HDL-C (OR=1.23, 95% CI: 1.06-1.41, P=0.004) . Conclusion The MS and its components might be the influencing factors of developing moderate reduced eGFR, and the screening should be focused on the population with MS.

Article in Chinese | WPRIM | ID: wpr-343699


<p><b>OBJECTIVE</b>To investigate the changes in the expression of DNA methyltransferases (DNMTs) and activities of histone acetyltransferase (HAT) and histone deacetylase (HDAC) in the testis of male rats exposed to bromopropanes (BPs).</p><p><b>METHODS</b>Twenty-seven male rats were randomly divided into three groups to be intraperitoneally injected with 1-BP,2-BP, or corn oil (as a control) for two weeks. The sperm count and morphology in the epididymis were evaluated. The mRNA expression of DNMT1, DNMT3a, and DNMT3b and activities of HAT and HDAC in the testis were measured by quantitative real-time PCR and ELISA.</p><p><b>RESULTS</b>Compared with the control group, the BP exposure groups showed significant decreased absolute and relative sperm counts; the proportion of tailless sperm increased in the 1-BP exposure group, while the proportion of sperm with abnormal heads increased in the 2-BP exposure group. The 2-BP exposure group had significantly lower mRNA expression of DNMT1, DNMT3a, and DNMT3b than the control group (P < 0.05). There were no significant differences in the activities of HAT and HDAC between the control group and 1-BP exposure group; the 2-BP exposure group showed significantly higher HAT activity than the control group (P < 0.05), but no significant difference was found in HDAC activity between them.</p><p><b>CONCLUSION</b>Exposure to 2-BP might induce abnormal DNA methylation and histone acetylation, and epigenetic regulation might play an important role in the reproductive toxicity of 2-BP.</p>

Acetylation , Animals , DNA (Cytosine-5-)-Methyltransferase 1 , DNA (Cytosine-5-)-Methyltransferases , Metabolism , DNA Methylation , Histones , Metabolism , Hydrocarbons, Brominated , Toxicity , Male , Rats , Rats, Sprague-Dawley , Sperm Count , Testis , Metabolism