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Plasma soluble CD36, carotid intima-media thickness and cognitive function in patients with type 2 diabetes
Xiaozhen Jiang1, Xiaohui Zhao2, Ruihua Chen1
1Department of Endocrinology, Shanghai Pudong New Area People's Hospital, Shanghai, China.
Insights
In type 2 diabetes, soluble CD36 (sCD36) is linked to carotid intima-media thickness (IMT), a marker of atherosclerosis. While IMT correlates with cognitive function, sCD36 itself did not show a direct association with cognitive scores in this study.
Area of Science:
- Endocrinology
- Cardiovascular Medicine
- Neuroscience
Background:
- Diabetes and atherosclerosis are established risk factors for cognitive deficits.
- Scavenger receptor CD36 (sCD36) is implicated in diabetes and atherosclerosis, suggesting a potential role in cognitive impairment.
Purpose of the Study:
- To investigate the relationship between plasma soluble CD36 (sCD36) levels and carotid intima-media thickness (IMT) in patients with type 2 diabetes.
- To determine the association of sCD36 and IMT with cognitive function, assessed using the Montreal Cognitive Assessment (MoCA) scoring system.
Main Methods:
- Evaluated plasma sCD36, blood lipids, glucose control (fasting blood glucose, HbA1c), carotid IMT, and MoCA scores in 357 type 2 diabetic patients.
- Statistical analyses included ANOVA and correlation analyses, with adjustments for relevant clinical characteristics.
Main Results:
- Patients with lower IMT exhibited lower sCD36 levels and higher MoCA scores.
- Higher sCD36 levels were associated with increased fasting blood glucose, LDL-C, and carotid IMT.
- Plasma sCD36 showed a significant positive correlation with carotid IMT (r=0.202, p<0.001) after adjustments.
- Carotid IMT was inversely associated with MoCA scores (r=0.284, p<0.001) after adjustments.
- No significant correlation was found between sCD36 and MoCA scores (r=-0.038, p=0.470).
Conclusions:
- Soluble CD36 (sCD36) is associated with carotid intima-media thickness (IMT) in type 2 diabetic patients.
- Carotid IMT is inversely correlated with cognitive function in this population.
- This study did not detect a cross-sectional association between sCD36 levels and cognitive function (MoCA scores).
Introduction:
Diabetes and atherosclerosis are both risk factors of cognitive deficits. Scavenger receptor CD36 is associated with increasing risk of diabetes and atherosclerosis, and may play a role in cognitive deficits. The aim of this study is to determine the correlations of plasma soluble CD36 concentrations with carotid intima-media thickness (IMT) and cognitive function in patients with type 2 diabetes.
Material And Methods:
We determined the levels of soluble CD36 (sCD36), blood lipids, fasting blood glucose, glycosylated hemoglobin, carotid atherosclerosis as IMT, cognitive function by the Montreal Cognitive Assessment (MoCA) scoring system, and other clinical characteristics in 357 patients with type 2 diabetes.
Results:
Diabetic patients with the lowest quartile of IMT (Q1) had lower sCD36 concentrations (ANOVA, ptrend < 0.05) and higher MoCA scores than upper ones (Q2-Q4) (ptrend < 0.05), and those with the highest quartile of sCD36(Q4) had higher FBG, LDL-C and carotid IMT than lower ones (Q1-Q3) (ptrend < 0.05 for all). Plasma log10(sCD36) was significantly correlated with carotid IMT (r = 0.202, p < 0.001) after adjustment for age, gender, and education level. Carotid IMT was significantly associated with MoCA scores (r = 0.284, p < 0.001) after adjustment for, age, gender, education level, duration of DM and hypertension. There were no correlations between sCD36 and MoCA scores (r = -0.038, p = 0.470).
Conclusions:
Our study shows that sCD36 is associated with carotid IMT, and carotid IMT is inversely correlated with cognitive function in type 2 diabetic patients. Nevertheless, no cross-sectional association between sCD36 and MoCA scores was detected in this study.
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