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Kuopio [Finland], July 11 : According to a study, arterial stiffness may represent a new risk factor for metabolic syndrome in adolescents.The findings that was published in the American Journal of Physiology-Heart and Circulatory Physiology.The metabolic syndrome is defined by the World Health Organization as the presence of three or more of abdominal obesity, insulin resistance, hypertension, and hyperlipidemia. In middle-aged persons in the US, the prevalence of metabolic syndrome is 30%, and it rises to 50% in those over 60. In Finland, men are 30% more likely than women to have metabolic syndrome. The risk of developing type 2 diabetes, cardiovascular disease, obesity, and early death increases with the presence of metabolic syndrome.Globally, the prevalence of metabolic syndrome already stands at about 3% among children aged 6 to 12 and about 5% among teenagers aged 13 to 18 years. The prevalence of metabolic syndrome in children is 12% in those who are overweight, whereas it is 29% in those who are obese. This global increase in the prevalence of metabolic syndrome highlights the need to find new causes and develop treatments to halt or reverse the condition.A new risk factor for childhood and adolescent metabolic disease such as obesity and insulin resistance is arterial stiffness. This risk factor is being established as a potential cause of type 2 diabetes among adults globally. However, it is not clear whether arterial stiffness causes metabolic syndrome.The current study included 3,862 adolescents (1,719 males and 2,413 females) aged 17 years who were followed up until age 24 years. These adolescents had dual-energy Xray absorptiometry measurement for trunk fat mass and skeletal muscle mass, as well as fasting blood samples such as glucose, insulin, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, triglyceride, and high sensitivity C-reactive protein, in addition to smoking status, socio-economic status, family history of cardiovascular disease, and moderate-to-vigorous physical activity. Arterial stiffness was measured with carotid-femoral pulse wave velocity and the presence of any three of high blood pressure, high trunk fat mass, high fasting glucose, high fasting triglyceride, or low fasting high-density lipoprotein cholesterol was considered to describe metabolic syndrome.The prevalence of metabolic syndrome in the study was 5% in males and 1.1% in females at age 17 years but 8.8% in males and 2.4% in females at age 24 years. This significant sex-difference in the prevalence of metabolic syndrome is due to a higher proportion of males having elevated systolic blood pressure, hyperglycemia, elevated triglyceride, and reduced high-density lipoprotein cholesterol compared to females. However, females had significantly higher trunk fat mass than males.During the 7-year follow-up, worsening arterial stiffness was associated with a 9% risk of metabolic syndrome in males but there was no statistically significant risk among females. It was also observed that arterial stiffness potentially caused metabolic syndrome; however, metabolic syndrome did not cause arterial stiffness. The pathway through which arterial stiffness caused metabolism syndrome could be partly explained by an increase in fasting insulin (12% contribution) and low-density lipoprotein cholesterol (9% contribution)."We are seeing for the first time that arterial stiffness in adolescents is an unknown risk factor for metabolic syndrome which may initiate a cascade of disease processes that might lead to type 2 diabetes, cardiovascular disease, and premature death. Early intervention might likely reduce high fasting insulin and low-density lipoprotein cholesterol thereby cutting off 20% of the potential causal effect of arterial stiffness on metabolic syndrome," says Andrew Agbaje, a physician and clinical epidemiologist at the University of Eastern Finland."Pending when randomized clinical trials will be successful in reversing and treating arterial stiffness, it is expedient for caregivers, pediatricians, public health experts, and policymakers to focus on ways to reduce high fasting insulin or insulin resistance and low-density lipoprotein cholesterol, particularly from adolescence through improvement in diet and physical activity," Agbaje continues.Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

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