Genetic Variants and Type 2 Diabetes Risk
Author Information
Author(s): Paul Arora, Bibiana Garcia-Bailo, Zari Dastani, Darren Brenner, Andre Villegas, Suneil Malik, Timothy D Spector, Brent Richards, Ahmed El-Sohemy, Mohamed Karmali, Alaa Badawi
Primary Institution: Public Health Agency of Canada
Hypothesis
The study investigates the association between genetic polymorphisms in innate immunity-related inflammatory pathways and metabolic factors related to type 2 diabetes.
Conclusion
Genetic variants in the innate immunity pathway are associated with some metabolic risk factors for type 2 diabetes, suggesting their potential as biomarkers for early disease risk prediction.
Supporting Evidence
- Six out of 18 SNPs were significantly associated with metabolic phenotypes after Bonferroni correction.
- Fasting insulin was associated with SNPs in IL6 and TNFA.
- Serum HDL-C was associated with variants of TNFA and CRP.
- CRP variants significantly modulated serum levels of sCRP.
- Each additional allele of CRP rs1205 was associated with a 39.2% decrease in serum CRP level.
- Each additional allele of CRP rs1417938 was associated with a 67.3% increase in serum CRP level.
- Cross-correlation analysis showed significant associations among metabolic factors related to T2DM.
Takeaway
The study found that certain genes related to inflammation can affect the risk of developing type 2 diabetes by influencing metabolic factors like insulin and cholesterol levels.
Methodology
A cross-sectional study was conducted using data from the TwinsUK Registry to evaluate the association between 18 SNPs in five genes and metabolic phenotypes related to type 2 diabetes.
Limitations
The study focused on a selected panel of SNPs and did not investigate a comprehensive set of genome-wide variants.
Participant Demographics
The cohort consisted mostly of Caucasian female volunteers aged 16 to 83 years, with a mean age of 48 years.
Statistical Information
P-Value
p < 0.0001
Confidence Interval
95%CI: 29.5-47.6% for CRP rs1205; 95%CI: 44.5-93.8% for CRP rs1417938
Statistical Significance
p ≤ 0.0027
Digital Object Identifier (DOI)
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