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Obese children metabolize drugs differently than healthy weight children

Date:
April 28, 2010
Source:
Federation of American Societies for Experimental Biology
Summary:
Researchers have provided the first evidence-based data on changes in drug metabolism in obese children as compared to healthy weight children.

Researchers from the University of Minnesota College of Pharmacy have provided the first evidence-based data on changes in drug metabolism in obese children as compared to healthy weight children.

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The study, conducted by L'Aurelle Johnson and Manoj Chiney in the Department of Experimental and Clinical Pharmacy, evaluated drug metabolism in sixteen healthy weight children and nine obese children.

"We have known for years that drugs metabolize differently in obese adults as compared to healthy weight adults," said Johnson. "But, there has been very little, if any, information available that specifically addresses the consequences of obesity on drug metabolism in children. Without this information, our ability to identify optimal drug dosing in children often relies on trial and error approaches."

In the study, Johnson and Chiney examined drug metabolizing enzyme activity in healthy weight and obese children, age 6 to 10 years old. Specifically, they looked at how the children metabolized caffeine and dextromethorphan, a key ingredient in the cough suppressant Robitussinฎ DM.

They found that obese children metabolized both drugs at different rates than healthy weight children.

Johnson said this finding is the first of many steps in determining the overall effect of obesity on drug absorption, distribution, metabolism and elimination in children. She plans to conduct additional research to define the activity of other drug metabolizing enzymes that may also be altered in the pediatric population as a result of obesity.

"Collectively, such knowledge concerning key factors that impact activity of drug metabolizing enzymes in children will have a significant positive impact on the development of optimal drug dosing regiments in children in order to maximize efficacy, while minimizing potential adverse drug effects, in the treatment of serious diseases such as cancer," said Johnson.

Johnson presented the research, which was funded by the NIH National Center for Research Resources "Multidisciplinary Scholar Development Program" 5K12RR023247, at the American Society for Pharmacology and Experimental Therapeutics annual meeting in a poster titled "The effect of obesity on drug metabolism in African-American children."


Story Source:

The above story is based on materials provided by Federation of American Societies for Experimental Biology. Note: Materials may be edited for content and length.


Cite This Page:

Federation of American Societies for Experimental Biology. "Obese children metabolize drugs differently than healthy weight children." ScienceDaily. ScienceDaily, 28 April 2010. <www.sciencedaily.com/releases/2010/04/100427171800.htm>.
Federation of American Societies for Experimental Biology. (2010, April 28). Obese children metabolize drugs differently than healthy weight children. ScienceDaily. Retrieved November 22, 2014 from www.sciencedaily.com/releases/2010/04/100427171800.htm
Federation of American Societies for Experimental Biology. "Obese children metabolize drugs differently than healthy weight children." ScienceDaily. www.sciencedaily.com/releases/2010/04/100427171800.htm (accessed November 22, 2014).

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