Insulin and Glucose's Role in Foam Cell Formation
Author Information
Author(s): Shashkin Pavel N, Jain Nitin, Miller Yury I, Rissing Benjamin A, Huo Yuqing, Keller Susanna R, Vandenhoff George E, Nadler Jerry L, McIntyre Thomas M
Primary Institution: Cardiovascular Research Center, University of Virginia
Hypothesis
Do hyperinsulinemic hyperglycemic conditions affect foam cell differentiation?
Conclusion
Exposure of macrophages to modified low density lipoproteins in hyperglycemic hyperinsulinemic conditions affects insulin signaling and promotes the release of proinflammatory stimuli.
Supporting Evidence
- Modified LDL upregulated Akt phosphorylation and expression of insulin-regulated aminopeptidase.
- Proinflammatory cytokines IL-lβ, IL-12, and IL-6 levels increased in hyperinsulinemic hyperglycemic conditions.
- Insulin receptor and glucose-6-phosphate dehydrogenase were upregulated by modified LDL.
Takeaway
When certain fats mix with high sugar and insulin levels, they can make cells in our body act differently, which might lead to diabetes.
Methodology
The study examined gene expression, cytokine production, and Akt phosphorylation in human monocyte-derived macrophages exposed to modified LDL under hyperinsulinemic hyperglycemic conditions.
Participant Demographics
Healthy human subjects, no restrictions on sex, age, or ethnicity.
Statistical Information
P-Value
p<0.000001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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