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Journal of Undergraduate Research

Keywords

Nd1, Mtdna gene, polymorphisms, energy metabolism, obesity, Peruvian, Native Americans

College

Life Sciences

Department

Nutrition, Dietetics, and Food Science

Abstract

Mitochondria are involved in the conversion of energy in the cell. Metabolic energy from the food we eat is converted in mitochondria to ATP by the electron transport system (ETS) and oxidative phosphorylation. The enzyme complexes involved in the ETS contain thirteen subunits which are encoded by mitochondrial DNA (mtDNA). Non-silent polymorphisms (sites in the DNA where the nucleotide differs between individuals) in mtDNA will affect these enzymes and may thereby alter metabolic efficiency and therefore metabolic rate. A lower metabolic rate is a risk factor for weight gain and a higher body mass index (BMI, a measure of obesity) (1).

Included in

Food Science Commons

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