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Renal disease: environment, race, or genes?
1David Geffen School of Medicine at UCLA, Los Angeles Biomedical Research Institute at Harbor-UCLA, Division of Nephrology and Hypertension, 1124 West Carson St, Torrance, CA 90502, USA. sadler@LABiomed.org
Ethnicity & Disease
|June 16, 2006
Summary
Diabetic nephropathy disproportionately affects people of color due to genetic and environmental factors. Research is ongoing to identify specific genes contributing to this kidney disease for new therapeutic targets.
Area of Science:
- Nephrology
- Genetics
- Epidemiology
Background:
- Diabetic nephropathy (DN) disproportionately affects minority populations, suggesting underlying genetic and environmental influences.
- While access to care and adherence are studied, genetic predisposition remains a significant factor in DN development.
- Understanding the genetic basis of DN is crucial for addressing health disparities.
Purpose of the Study:
- To review current genetic approaches for identifying genes predisposing to diabetic nephropathy.
- To highlight the challenges and progress in genetic research for diabetic nephropathy.
- To emphasize the need for large-scale genomic studies to uncover novel therapeutic targets.
Main Methods:
- Review of genetic methodologies including candidate gene approaches, linkage analysis, and genome-wide association studies.
- Analysis of findings from various ethnic groups and phenotypic definitions.
- Examination of studies investigating genetic influences on glomerular filtration rate and proteinuria.
Main Results:
- Several candidate genes have been proposed, with renin-angiotensin system genes showing some confirmation.
- Linkage analysis studies have yielded inconsistent results across different ethnic groups.
- Genomic regions associated with glomerular filtration rate and proteinuria do not consistently overlap.
Conclusions:
- Despite challenges, genetic research is vital for understanding diabetic nephropathy disparities.
- Genome-wide scanning in large cohorts is expected to identify key genes and chromosomal regions conferring risk.
- Identification of genetic risk factors may lead to novel therapeutic strategies for diabetic nephropathy.