Proinflammatory and prothrombotic state in subjects with different glucose tolerance status before cardiovascular disease.

BACKGROUND: Inflammation has been associated with insulin resistance, type 2 diabetes mellitus (T2DM), and atherothrombosis. AIM: To determine differences in levels of proinflammatory and prothrombotic markers such as high sensitivity C-reactive protein (hs-CRP) and fibrinogen in subjects with normal glucose tolerance (NGT), prediabetes, and T2DM and to establish their relationship with other cardiovascular risk factors before clinical manifestations of cardiovascular disease. METHODS: We conducted a nonrandomized, cross-sectional assay in a hospital at México City. The levels of hs-CRP and fibrinogen were measured and compared according to glucose tolerance status. RESULTS: We enrolled 1047 individuals and they were distributed into NGT n = 473, pre-DM n = 250, and T2DM n = 216. There was a statistical difference between NGT and T2DM groups for fibrinogen (P = 0.01) and hs-CRP (P = 0.05). Fibrinogen and hs-CRP showed a significant positive correlation coefficient (r = 0.53, P<0.0001). In a multiple stepwise regression analysis, the variability in fibrinogen levels was explained by age, HbA1c, and hs-CRP (adjusted R² = 0.31, P<0.0001), and for hs-CRP it was explained by BMI and fibrinogen (adjusted R² = 0.33, P<0.0001). CONCLUSION: Inflammation and prothrombotic state are present in people with T2DM lacking cardiovascular disease. Fibrinogen and Hs-CRP are positively correlated. Fibrinogen and hs-CRP concentrations are predominantly determined by BMI rather than glucose levels.

Hepatitis C virus infection and type 2 diabetes mellitus in Mexican patients.

OBJECTIVE: to measure the frequency of type 2 diabetes mellitus (T2DM) in patients with confirmed HCV infection. METHODS: we studied 125 adults reactive to anti-HCV antibodies (62.4 % women, mean age 46.8 years) who received confirmatory RT-PCR testing for viremia (63.2 % HCV-RNA-positive). RESULTS: twenty-two patients had T2DM (17.6 %, 95 % confidence interval: 11.8-25.3 %; mean National prevalence: 14.4 %), more frequent among patients with detectable viremia than in negative cases (23.3 % vs. 9.6 %, respectively; p = 0.04), and among those with advanced liver disease, than in compensated patients (28.9 % vs. 11.3 %, respectively; p = 0.01). Fourteen (17.7 %) patients received interferon-based treatment and 6 (42.8 %) had sustained virology response. None of the 6 responders had T2DM, but 2 of the 8 (25 %) non-responders had diabetes. T2DM patients were older than those without diabetes (57.7 vs. 44.5 years, p < 0.001), and after multivariate analysis, only age was significantly associated with diagnosis of T2DM. CONCLUSIONS: T2DM was highly prevalent among patients with chronic HCV infection. Age was the most important determining factor.

Prevalence of metabolic syndrome components in an urban Mexican sample: comparison between two classifications.

Background. The aim of this study was to examine the prevalence of metabolic syndrome (MS) components in an urban Mexican sample. Methods. A total of 854 subjects were included. Anthropometric, blood pressure measurements, clinical data, and overnight fasting blood samples were obtained from all subjects. Results. In accordance with definitions by the American Heart Association/ National Heart, Lung, and Blood Institute (AHA/NHLBI) and the International Diabetes Federation (IDF), the prevalence of MS among participants was 59.7 and 68.7%, respectively. The prevalence of MS was higher in women and in individuals older than 45 years of age. More than 40% of the subjects fulfilled four criterions of MS according to both definitions. Conclusions. There was a high prevalence of MS components in an urban Mexican sample. Therefore, strong strategies had to be developed for early detection of MS and its components to prevent DMT2 and atherothrombotic complications in these patients.