© 2005 by the American Diabetes Association, Inc.
Second World Congress on the Insulin Resistance SyndromeMediators, pediatric insulin resistance, the polycystic ovary syndrome, and malignancyZachary T. Bloomgarden, MD, is a practicing endocrinologist in New York, New York, and is affiliated with the Diabetes Center, Mount Sinai School of Medicine, New York, New York
Abbreviations: ACE, American College of Endocrinology ADMA, asymmetric dimethylarginine ATP, Adult Treatment Panel CRP, C-reactive protein CVD, cardiovascular disease DDAH, dimethylarginine dimethylaminohydrolase DHEA, dehydroepiandrosterone DHEAS, DHEA sulfate FFA, free fatty acid iCAM, intercellular adhesion molecule IGFBP, IGF-binding protein IGT, impaired glucose tolerance IL, interleukin PCOS, polycystic ovarian syndrome PKC, protein kinase C vCAM, vascular cell adhesion molecule WHR, waist-to-hip ratio
This is the second in a series of articles on the Second World Congress on the Insulin Resistance Syndrome, Universal City, California, 1820 November 2004. Jacqueline Dekker (Amsterdam, the Netherlands) presented data from the Hoorn Study on the predictive power of insulin resistance syndrome diagnosis, pointing out that the public health role of identifying a person as having insulin resistance syndrome includes the ability to characterize populations to better understand the pathogenesis of adverse outcome, to allow comparison of characteristics of individuals in differing populations, and to serve a communications function in increasing risk awareness, particularly allowing identification of high-risk groups for cardiovascular disease (CVD), cancer, and diabetes. An important question is whether the existing definitions allow optimal diagnosis of high-risk groups. Comparing the Adult Treatment Panel (ATP)-III and American College of Endocrinology (ACE) definitions (1), she noted that the ACE definition starts with high-risk individuals, including non-Caucasian ethnicity, cigarette use, obesity, CVD, hypertension, polycystic ovarian syndrome (PCOS), nonalcoholic fatty liver disease, acanthosis nigricans, history of gestational diabetes or impaired glucose tolerance (IGT), and family history of type 2 diabetes, hypertension, or CVD.
The Hoorn Study included 2,484 individuals aged 5075 in 19891990, with follow-up examination in 19961998, and population registry ascertainment of morbidity and mortality. Of 2,162 without diabetes at baseline, there were 429 deaths, 145 with malignancy and 168 with CVD. Insulin resistance syndrome components for men and women included hypertension in 68 and 66%, abdominal obesity in 16 and 40%, impaired fasting glucose in 14 and 9%, IGT in 21 and 18%, high triglycerides in 35 and 29%, and low HDL cholesterol in 28 and 35%, respectively. Twenty-one and 29% of men and women, respectively, satisfied the ATP-III definition and 46 and 42% the ACE definition of insulin resistance syndrome. Despite the greater number satisfying Causes and mediators of insulin resistance Insulin resistance in children PCOS Insulin resistance and malignancy
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