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Ann Nutr Metab. 2010;56(4):267-72. doi: 10.1159/000294752. Epub 2010 Apr 22.

People with impaired glucose tolerance and impaired fasting glucose are similarly susceptible to cardiovascular disease: a study in first-degree relatives of type 2 diabetic patients.

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1
Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.

Abstract

BACKGROUND/AIMS:

To compare the cardiovascular disease (CVD) risk factors between subjects with impaired fasting glucose (IFG) and those with impaired glucose tolerance (IGT) in the first-degree relatives (FDR) of type 2 diabetic patients.

METHODS:

A cross-sectional study, conducted between 2004 and 2006 in 1,893 (1,412 females and 481 males) FDR of type 2 diabetic outpatients of the Isfahan Endocrine and Metabolism Research Center. In all participants, blood pressure, weight, height, waist circumference, serum lipids and HbA1c were measured and a standard 75-g 2-hour oral glucose tolerance test was performed. The diagnosis of IGT, IFG and diabetes was made according to American Diabetes Association criteria.

RESULTS:

Isolated IGT and isolated IFG, and both IFG and IGT were observed in 8.8%, 17.4% and 11.2% of subjects, respectively. In comparison to subjects with normal glucose levels and tolerance (control group): the mean waist circumference was significantly higher in both IFG and IGT groups; BMI, HDL-c and LDL-c in the IFG group; and triglycerides in the IGT group. The means of all studied CVD risk factors were significantly higher in the IGT+IFG group than the control group, except for blood pressure, HDL-c and HbA1c. No significant differences were found regarding CVD risk factors between IFG and IGT groups.

CONCLUSIONS:

The prevalence of IFG and IGT is high in FDR of type 2 diabetic patients. CVD risk factors are similar in these 2 groups and higher than in the control group. More attention should be paid to screening and treatment of this high-risk population.

PMID:
20413967
DOI:
10.1159/000294752
[Indexed for MEDLINE]
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