Type 2 Diabetes and ABCA1 Function
Author Information
Author(s): Dipesh C. Patel, Christiane Albrecht, Darrell Pavitt, Vijay Paul, Celine Pourreyron, Simon P. Newman, Ian F. Godsland, Jonathan Valabhji, Desmond G. Johnston
Primary Institution: Imperial College London
Hypothesis
There is a glycaemia-mediated impairment of reverse cholesterol transport (RCT).
Conclusion
ABCA1 expression and protein concentrations in leukocytes, as well as function in cultured skin fibroblasts, are reduced in Type 2 diabetes.
Supporting Evidence
- ABCA1 expression fell with increasing HbA1c and fasting glucose levels.
- Leukocyte ABCA1 protein concentration was lower in patients with Type 2 diabetes.
- Apolipoprotein-A1-mediated cholesterol efflux was reduced in Type 2 diabetes.
Takeaway
People with Type 2 diabetes have trouble getting rid of cholesterol from their cells, which can lead to heart problems.
Methodology
Leukocyte ABCA1, LXRα, and PPARγ expression was measured by PCR in 63 men, and ABCA1 function was quantified in a subgroup of 25 men using cholesterol efflux assays.
Potential Biases
Potential bias due to the exclusion of patients on hypoglycaemic or lipid-lowering medications.
Limitations
The study was limited to men and did not include women, and the findings may not be generalizable to other populations.
Participant Demographics
63 men aged over 18 years, including 18 with Type 2 diabetes and 27 healthy controls.
Statistical Information
P-Value
p=0.03
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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