Insulin Resistance - The Role of Ethnicity: Evidence from Caucasian and African Cohorts

Abstract

The risk for insulin resistance and subsequent type 2 diabetes varies between different ethnic populations due to differences in the genetic and environmental background. However, obesity and unhealthy lifestyle, crucial determinants of insulin resistance, are on the rise throughout all population groups though the susceptibility towards those factors may differ. Up to the present day it is not clear whether insulin resistance is based on metabolic changes due to lifestyle modifications or rather an ethnic and thus genetic grounded phenomenon. Genetic variations in secretion products of the active fat tissue (adipokines), a different pathophysiology of changes in glucose metabolism and the deep impact of urbanization (environmental factors) are discussed as primary determinants for differences in manifestation of insulin resistance between Caucasian and African populations. These factors may be influenced or modified by a central theme: visceral obesity. This mini review will elaborate on these issues illustrated by observations from Caucasian and African cohorts.

Key words

insulin resistance - ethnicity - African population - obesity - urbanization

References

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