To those outside of the medical professions, metabolic syndrome may seem like a relatively new phenomenon, and indeed the numbers of patients diagnosed with this particular syndrome have skyrocketed in the past decade. Research shows even young people - university students in the prime of life – are now showing signs of metabolic syndrome on a widespread basis. (1)
The etiology of metabolic syndrome was actually first recognized in the 1930’s by Himsworth, who questioned the understanding of his day, that all diabetes was caused by deficiency of insulin (as in Type 1 diabetes). He proposed that diabetes could also arise from inefficient action of insulin at the tissues – now called insulin resistance and understood to be the key step in the pathogenesis of Type 2 diabetes. (2)
In 1988, Gerald Reaven gave the name Syndrome X to the clustering of independent coronary heart disease (CHD) and Type 2 diabetes risk factors in the same patient, which included impaired glucose tolerance, high triglycerides, low HDL, and hypertension. (3)
Syndrome X,” or “the deadly quartet” is now known as metabolic syndrome. Metabolic syndrome is a group of risk factors that includes high blood pressure, high blood sugar, a large waist circumference, high triglycerides and low HDL. Each of these risk factors increases cardiovascular disease risk, and presentation of 3 or more is considered adequate to diagnose metabolic syndrome. All of the features of metabolic syndrome can be traced to one essential – and modifiable- cause: insulin resistance due in large part to lack of exercise, high glycemic diet and, in the majority of cases, obesity.
Unfortunately, many patients underestimate the risks of metabolic syndrome and overestimate the role of genetics in developing diabetes. Metabolic syndrome and Type 2 diabetes do have a genetic component – but the genetic predisposition is triggered by environmental factors that include sedentary lifestyle, high-fat refined-carbohydrate diet, and the development of abdominal obesity in particular.
Communicating the risks associated with insulin resistance, as well as educating patients about the effect of environment and behavior on genetic risk, may help improve compliance with nutrition and lifestyle changes, ultimately improving patient outcome.
DISCLAIMER: The information contained in this article is for informational purposes only, and is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.
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