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Taking a brisk walk several times a week for exercise appears to reduce black women’s risk of developing type 2 diabetes, according to a study published this month in the American Journal of Epidemiology, Reuters Health reports. Few studies have been conducted on the benefits of exercise among black women, according to Reuters. For the study, Julie Palmer of Boston University and colleagues used data from the ongoing Black Women’s Health Study that followed 45,000 black women from 1995 to 2005.

Researchers found that those who said they walked for a minimum of five hours weekly for exercise were one-third less likely to develop type 2 diabetes than those who did not walk. The risk of being diagnosed with the disease was significantly lower among women who said they regularly took a brisk walk even when taking into account possible contributing factors such as age, income and diet. The study included a large number of obese women and they too appeared to have a lower risk for developing diabetes if they exercised regularly.

Palmer said, “This is important, because it suggests a way to reduce diabetes risk even among the women who are at highest risk of the disease,” adding, “The finding that brisk walking for a few hours a week or longer reduces diabetes risk may be the most important finding of all. This is something almost all women can do in the course of their daily lives.”

Researchers also found that women who watched television for five or more hours a day were 86% more likely to develop diabetes than those who watched less than one hour per day (Norton, Reuters Health, 12/18).

An abstract of the study is available online.

Reprinted with kind permission from http://www.kaisernetwork.org. You can view the entire Kaiser Daily Health Policy Report, search the archives, or sign up for email delivery at http://www.kaisernetwork.org/dailyreports/healthpolicy. The Kaiser Daily Health Policy Report is published for kaisernetwork.org, a free service of The Henry J. Kaiser Family Foundation.

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ScienceDaily (Dec. 23, 2008) — Overweight siblings of children with type 2 diabetes are four times more likely to have abnormal glucose levels compared to other overweight children. Because abnormal glucose levels may indicate risk for diabetes or diabetes itself, these children could benefit from screening tests and diabetes prevention education. Researchers from The Children’s Hospital of Philadelphia published their findings December 9 in the online edition of the Journal of Pediatrics.
“To our knowledge, previous studies have not specifically looked at the risk of abnormal glucose tolerance among siblings of children diagnosed with type 2 diabetes. This group has a unique combination of genetic and environmental risk factors,” said Sheela N. Magge, M.D., M.S.C.E., a pediatric endocrinologist at The Children’s Hospital of Philadelphia and primary author of the study. “Clinical experience suggests that children with type 2 diabetes often have an obese sibling, which makes siblings an appropriate target for prevention trials.”
The study looked at 62 children: 20 obese subjects with a sibling who had type 2 diabetes and a control group of 42 obese children. The groups were similar for age, gender, racial distribution (predominantly African American), pubertal status and body mass index over 95th percentile.

The researchers found that overweight siblings of children with type 2 diabetes had four times greater odds of having abnormal glucose levels (impaired glucose tolerance or type 2 diabetes) than other overweight children. However, investigators found no significant differences in insulin resistance, as measured by the homeostasis model assessment.
Type 2 diabetes is caused by a combination of both genetic and environmental factors. Known risks include obesity, decreased physical activity, race/ethnicity, family history and insulin resistance. Obesity decreases insulin sensitivity, as does puberty, when all adolescents experience a period of relative insulin resistance. In obese adolescents already at risk of developing type 2 diabetes, the increase in insulin resistance during puberty may be enough to unmask disease. Family history is also important; 74 to 100 percent of children with type 2 diabetes have a first- or second-degree relative who also has the condition.
Not all children with a family history of type 2 diabetes, insulin resistance or obesity develop type 2 diabetes, cautions Dr. Magge.
The researchers also add that identifying groups at high risk for type 2 diabetes during childhood, such as obese siblings of children with type 2 diabetes, could help guide screening of obese children for abnormal glucose tolerance by primary care providers. This could also help to identify children who might benefit from participation in future type 2 diabetes prevention studies.
Dr. Magge’s coauthors were Nicolas Stettler, M.D., M.S.C.E.; Abbas Jawad, M.Sc., Ph.D.; and Lorraine E. Levitt Katz, M.D.; all of The Children’s Hospital of Philadelphia and the University of Pennsylvania.

The research was supported by grants from the National Institutes of Health and the National Center for Research Resources.

Children’s Hospital of Philadelphia (2008, December 23). Overweight Siblings Of Children With Type 2 Diabetes Likely To Have Abnormal

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ALBANY, New York (CNN) — Like many New Yorkers, I remember a time when nearly everyone smoked. In 1950, Collier’s reported that more than three-quarters of adult men smoked. This epidemic had a devastating and long-lasting impact on public health.

Today, we find ourselves in the midst of a new public health epidemic: childhood obesity.

What smoking was to my parents’ generation, obesity is to my children’s generation. Nearly one out of every four New Yorkers under the age of 18 is obese. In many high-poverty areas, the rate is closer to one out of three.

That is why, in the state budget I presented last Tuesday, I proposed a tax on sugared beverages like soda. Research has demonstrated that soft-drink consumption is one of the main drivers of childhood obesity.

For example, a study by Harvard researchers found that each additional 12-ounce soft drink consumed per day increases the risk of a child becoming obese by 60 percent. For adults, the association is similar.

If we are to succeed in reducing childhood obesity, we must reduce consumption of sugared beverages. That is the purpose of our proposed tax. We estimate that an 18 percent tax will reduce consumption by five percent.

Our tax would apply only to sugared drinks — including fruit drinks that are less than 70 percent juice — that are non diet. The $404 million this tax would raise next year will go toward funding public health programs, including obesity prevention programs, across New York state.

The surgeon general estimates that obesity was associated with 112,000 deaths in the United States every year. Here in New York state, we spend almost $6.1 billion on health care related to adult obesity — the second-highest level of spending in the nation.

Last year, legitimate concerns about links between consumption of fast food and the prevalence of heart disease prompted New York City to ban the use of trans fats in restaurant food.

No one can deny the urgency of reducing the rate of obesity, including childhood obesity. Obesity causes serious health problems like type 2 diabetes, high blood pressure and high cholesterol. It puts children at much greater risk for life-threatening conditions such as cardiovascular disease and cancer.

We must never stigmatize children who are overweight or obese. Yet, for the sake of our children’s health, we have an obligation to address this crisis. I believe we can ultimately curb the obesity epidemic the same way we curbed smoking: through smart public policy.

In recent decades, anti-smoking campaigns have raised awareness. Smoking bans have been enacted and enforced. And, perhaps most importantly, we have raised the price of cigarettes.

In June, New York state raised the state cigarette tax an additional $1.25. According to the Campaign for Tobacco Free Kids, this increase alone will prevent more than 243,000 kids from smoking, save more than 37,000 lives and produce more than $5 billion in health care savings.

These taxes may be unpopular, but their benefits are undeniable. Last month, the Centers for Disease Control and Prevention reported that, for the first time in generations, fewer than 20 percent of Americans smoked. Lung cancer rates have finally begun to decline. As a result, we are all healthier.

Just as the cigarette tax has helped reduce the number of smokers and smoking-related deaths, a tax on highly caloric, non-nutritional beverages can help reduce the prevalence of obesity.

To address the obesity crisis, we need more than just a surcharge on soda. We need to take junk food out of our schools. We need to encourage our children to exercise more. And we need to increase the availability of healthy food in underserved communities.

But to make serious progress in this effort, we need to reduce the consumption of high-calorie drinks like nondiet soda among children and adults.

I understand that New Yorkers may not like paying a surcharge for their favorite drinks. But surely it’s a small price to pay for our children’s health.

The opinions expressed in this commentary are solely those of David Paterson.

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