Changes in Blood Gene Expression After Bariatric Surgery in Obese Diabetics
Author Information
Author(s): Berisha Stela Z., Serre David, Schauer Philip, Kashyap Sangeeta R., Smith Jonathan D.
Primary Institution: Cleveland Clinic
Hypothesis
Bariatric surgery will alter whole blood gene expression profiles in obese subjects with type 2 diabetes.
Conclusion
Bariatric surgery significantly changes gene expression in whole blood, which may serve as biomarkers for type 2 diabetes susceptibility and treatment response.
Supporting Evidence
- Bariatric surgery led to significant reductions in body mass index and fasting plasma glucose.
- 204 transcripts were significantly altered after surgery, indicating changes in gene expression.
- Changes in gene expression were correlated with improvements in diabetes-related clinical traits.
Takeaway
This study looked at how surgery to help people lose weight affects genes in their blood. It found that many genes change after the surgery, which might help doctors understand diabetes better.
Methodology
Whole blood samples were collected from 11 obese subjects with type 2 diabetes before and after bariatric surgery, and gene expression was analyzed using microarrays.
Potential Biases
Potential biases due to the small sample size and lack of randomization.
Limitations
The small sample size limited the ability to analyze differences between types of surgery and increased the false discovery rate.
Participant Demographics
11 obese subjects with type 2 diabetes (5 females, 6 males; average age 50.5 years).
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
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