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Ethnicity and type 2 diabetes: focus on Asian Indians
1Department of Internal Medicine, Center for Human Nutrition, Division of Endocrinology and Metabolism, UT Southwestern Medical Center at Dallas, Dallas, TX, USA. nicola.abate@swmed.edu
Journal of Diabetes and Its Complications
|November 17, 2001
Summary
Asian Indians have higher type 2 diabetes rates than Caucasians, despite lower obesity. Excessive insulin resistance, potentially due to genetics or environment, is a key factor. Understanding this can improve diabetes prevention and treatment for all ethnic groups.
Area of Science:
- Endocrinology
- Metabolic Diseases
- Epidemiology
Background:
- Type 2 diabetes prevalence is rising globally, with notable ethnic disparities.
- Asian Indians exhibit higher type 2 diabetes rates than Caucasians, irrespective of obesity levels.
- Lifestyle factors alone do not fully explain the increased diabetes risk in Asian Indians.
Purpose of the Study:
- To investigate the reasons behind the disproportionately high prevalence of type 2 diabetes in Asian Indians.
- To explore the role of excessive insulin resistance and its potential environmental or genetic causes in this ethnic group.
- To discuss the implications for type 2 diabetes prevention and treatment strategies.
Main Methods:
- Review of epidemiological studies on type 2 diabetes prevalence and risk factors across ethnic groups.
- Analysis of factors contributing to insulin resistance, including lifestyle and potential genetic influences.
- Discussion of the role of free fatty acids (FFA) in insulin resistance.
Main Results:
- Asian Indians demonstrate significantly higher insulin resistance compared to Caucasians.
- Obesity rates do not fully account for the observed differences in type 2 diabetes incidence.
- Westernized lifestyle factors contribute but are insufficient to explain the trend.
Conclusions:
- Excessive insulin resistance is a critical factor in the elevated type 2 diabetes risk among Asian Indians.
- Identifying the etiology of insulin resistance in Asian Indians can inform targeted prevention and treatment.
- Understanding these ethnic-specific mechanisms enhances the broader comprehension of type 2 diabetes pathophysiology and management.