Thursday, December 10, 2009

Carbs & ancestry   posted by Razib @ 12/10/2009 11:43:00 PM

Stable Patterns of Gene Expression Regulating Carbohydrate Metabolism Determined by Geographic Ancestry:
Methodology/Principal Findings
Using a combination of genetic/genomic and bioinformatics approaches, we identified a large number of genes that were both differentially expressed between American subjects self-identified to be of either African or European ancestry and that also contained single nucleotide polymorphisms that distinguish distantly related ancestral populations. Several of these genes control the metabolism of simple carbohydrates and are direct targets for the SREBP1, a metabolic transcription factor also differentially expressed between our study populations.

These data support the concept of stable patterns of gene transcription unique to a geographic ancestral lineage. Differences in expression of several carbohydrate metabolism genes suggest both genetic and transcriptional mechanisms contribute to these patterns and may play a role in exacerbating the disproportionate levels of obesity, diabetes, and cardiovascular disease observed in Americans with African ancestry.

Figure 2 had me thinking of Me, Myself & Irene.

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