(03-10-06) Obesity-related diabetes found riskiest in children

Study cites shorter life, kidney failure
By Lindsey Tanner, Associated Press

CHICAGO -- Children who get obesity-related diabetes face a much higher risk of kidney failure and death by middle age than people who develop diabetes as adults, a study suggests.
The study offers some of the first strong evidence of the consequences of the nation's growing epidemic of Type 2 diabetes in children, said Dr. William Knowler, a co-author who is a researcher with the National Institute of Diabetes and Digestive and Kidney Diseases.
The research also lends support to warnings that diabetes and other obesity-related ills are on the verge of shortening average life span in the United States.
The study involved Pima Indians in Arizona, who have disproportionately high rates of diabetes and obesity.
They may be ``the tip of the iceberg, letting us know what's in the future for the rest of America if we don't do something about the childhood obesity epidemic," said Dr. David Ludwig, director of the obesity program at Children's Hospital Boston. He was not involved in the research.
The study appears in today's Journal of the American Medical Association.
It involved a group of Indians whom National Institutes of Health researchers have been tracking since 1965.
Of the 1,865 participants with Type 2 diabetes, 96 developed it in childhood.
The average age of youth-onset diabetes was about 17, although the disease was diagnosed in children as young as 3 1/2.
During at least 15 years of follow-up, 15 children -- or 16 percent -- of those with childhood-onset Type 2 diabetes developed end-stage kidney failure or died from diabetic kidney disease by age 55. That's compared with 133, or 8 percent , of those who developed diabetes after age 20.
The researchers calculated that the incidence of end-stage kidney failure and death by age 55 was nearly five times higher in people who developed Type 2 diabetes before age 20 than in those who developed diabetes in adulthood.
Most of the 20 million Americans with diabetes are adults with Type 2. While Type 2 diabetes in children was almost unheard of a generation ago, the incidence has increased substantially in the past decade, largely because of obesity and lack of exercise.
Diabetes impairs the body's ability to regulate blood sugar levels. That can lead to damage to the kidneys and blood vessels throughout the body.

Source: thebostonglobe.com

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