scholarly journals A Quantitative Trait Locus on Chromosome 13q Affects Fasting Glucose Levels in Hispanic Children

2007 ◽  
Vol 92 (12) ◽  
pp. 4893-4896 ◽  
Author(s):  
Guowen Cai ◽  
Shelley A. Cole ◽  
Nancy F. Butte ◽  
V. Saroja Voruganti ◽  
Anthony G. Comuzzie

Abstract Objective: The prevalence of childhood obesity has increased dramatically in the United States. Early presentation of type 2 diabetes has been observed in children and adolescents, especially in the Hispanic population. The genetic contribution of glucose homeostasis related to childhood obesity is poorly understood. The objective of this study was to localize quantitative trait loci influencing fasting serum glucose levels in Hispanic children participating in the Viva La Familia Study. Design: Subjects were 1030 children ascertained through an overweight child from 319 Hispanic families. Fasting serum glucose levels were measured enzymatically, and genetic linkage analyses were conducted using SOLAR software. Results: Fasting glucose was heritable, with a heritability of 0.62 ± 0.08 (P < 0.01). Genome-wide scan mapped fasting serum glucose to markers D13S158–D13S173 on chromosome 13q (LOD score of 4.6). A strong positional candidate gene is insulin receptor substrate 2, regulator of glucose homeostasis and a candidate gene for obesity. This region was reported previously to be linked to obesity- and diabetes-related phenotypes. Conclusions: A quantitative trait locus on chromosome 13q contributes to the variation in fasting serum glucose levels in Hispanic children at high risk for obesity.

Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Song Vogue Ahn ◽  
Hyeon Chang Kim ◽  
Chung Mo Nam ◽  
Hyun Chul Lee ◽  
Il Suh

Objective: Diabetic women have a greater relative risk of coronary heart disease than diabetic men. However, gender difference in the impact of blood glucose levels below diabetic range on risk of coronary heart disease is unclear. The aim of this study is to evaluate whether the association between nondiabetic blood glucose levels and the incident risk of coronary heart disease is different in men and women. Methods: We measured fasting serum glucose levels and other cardiovascular risk factors in 172,580 Koreans (108,461 men and 64,119 women), aged 35–59 years in 1990 and 1992. Our primary outcomes were hospital admissions and deaths from coronary heart disease in 11 year follow-up from 1993 to 2003. Cox proportional hazard models were used to estimate the hazard ratios for coronary heart disease according to the baseline fasting serum glucose levels, after adjustment for age, body mass index, blood pressure, total cholesterol level, and cigarette smoking. Results: During the 11 years, 3,769 coronary heart disease events occurred. Risk of coronary heart disease in men was significantly increased at fasting serum glucose levels of diabetic range (≥ 126 mg/dL), although risk of coronary heart disease in women was significantly increased from impaired fasting glucose levels ≥ 110 mg/dL. In fasting serum glucose levels ≥ 110 mg/dL, the hazard ratios for coronary heart disease incidence were higher in women than in men compared with women and men with fasting glucose levels <80mg/dL, respectively. There was no association between impaired fasting glucose from 100 to 109 mg/dL and risk of coronary heart disease neither in men nor in women. Conclusions: The stronger impact of fasting serum glucose levels on relative risk of coronary heart disease in women compared with in men was significant from impaired fasting glucose levels ≥ 110 mg/dL. Adjusted Hazard Ratios (HRs) for Coronary Heart Disease by Fasting Serum Glucose Levels


Obesity ◽  
2006 ◽  
Vol 14 (9) ◽  
pp. 1596-1604 ◽  
Author(s):  
Guowen Cai ◽  
Shelley A. Cole ◽  
Nancy Butte ◽  
Carlos Bacino ◽  
Vincent Diego ◽  
...  

2003 ◽  
Vol 24 (10) ◽  
pp. 776-778 ◽  
Author(s):  
Stephen J. Wilson ◽  
Daniel J. Sexton

AbstractWe conducted a case-control study to investigate the relationship between preoperative fasting serum glucose and postoperative mediastinitis in patients undergoing open heart surgery. Multivariate analysis revealed that a glucose level of 126 mg/dL or greater was associated with a significantly increased risk of mediastinitis (OR, 5.25; P = .002).


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