Early Screening Necessary to Help Mexican American Children Avoid Chronic Health Problems Due to Metabolic Syndrome

by Kathy Jones on  July 14, 2013 at 8:58 PM General Health News
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Underlining the need for early screening and intervention among Mexican American children in order to prevent chronic health problems later in their lives, a new study conducted by researchers reveals that they are experiencing a number of health problems, such as obesity and pre-diabetes, which usually would have been expected to develop much later in their life.
 Early Screening Necessary to Help Mexican American Children Avoid Chronic Health Problems Due to Metabolic Syndrome
Early Screening Necessary to Help Mexican American Children Avoid Chronic Health Problems Due to Metabolic Syndrome

Directed by Texas Biomed scientist Ravindranath Duggirala, Ph.D., in collaboration with scientists from UT Health Science Center at San Antonio and other institutions, the results of the study were published online in the journal Human Genetics.

The research was funded primarily by the National Institute of Child Health and Human Development, a division of the National Institutes of Health (NIH). Metabolic syndrome is a cluster of early warning signs for diabetes, heart disease, and other major medical problems. These warning signs include increased accumulation of fat around the waist and in the blood, as well as elevated blood pressure and blood sugar, and high insulin levels. An estimated 2.5 million adolescents in the US have metabolic syndrome, with minority groups such as Mexican Americans being particularly vulnerable.

This new study examined 670 non-diabetic boys and girls, between the ages of 6 and 17 years, from predominantly lower-income extended Mexican American families, many of whose adult members have increased risk of diabetes. The study found that nearly 53 percent of the children were overweight or obese, and 13 percent had pre-diabetes. Overall, 19 percent -- almost 1 in 5 -- of the young people exhibited metabolic syndrome. The prevalence of metabolic syndrome rose dramatically with increasing obesity, and among 65 severely obese young people in the study, over two-thirds had already developed the condition. The young study participants were all enrolled in the San Antonio Family Assessment of Metabolic Risk Indicators in Youth (SAFARI) study, and went to the Texas Diabetes Institute for the clinic examinations associated with the project. Because all the children belonged to families whose adult members had previously participated in genetic studies led by Texas Biomed, the researchers were able draw upon extensive family information to identify strong evidence of heritability for the metabolic syndrome and its related traits.

The ultimate goal of SAFARI investigators' efforts is to find better ways to prevent or delay disease. "Much attention has been devoted to environmental and lifestyle contributors to obesity," said Texas Biomed geneticist and SAFARI Principal Investigator Ravindranath Duggirala, Ph.D. "But these data provide insights into the complex genetic architecture underlying risk for metabolic disease in these children. Insights gained through a genetic approach may help to tailor effective dietary, physical-activity and other interventions for high-risk young people." "SAFARI data suggest that if risk-factor screening of high-risk children could be performed by age six, it could provide an opportunity for interventions which might delay or prevent their developing debilitating health conditions later in life," said lead author Sharon Fowler, M.P.H., of the Health Science Center. "For parents and primary care physicians, it's a good motivating factor to intervene early if you discover that your child is at greater-than-average risk of developing diabetes or cardiovascular disease at an early age," said Daniel Hale, M.D., chief of the Division of Pediatric Endocrinology and Diabetes in the Department of Pediatrics at the Health Science Center and medical director of the SAFARI study. Duggirala and other SAFARI investigators are currently conducting further genetic testing to determine which specific genes directly influence disease-related risk factors in these children. Their long-term goal is to develop family-based lifestyle interventions for SAFARI participants who are at greatest risk, in an effort to prevent the development of future serious health problems in these young people.

Source: Eurekalert

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