Endocrine Journal
ORIGINALS
Short Term Effects of Atorvastatin on Endothelial Functions and Oxidized LDL Levels in Patients with Type 2 Diabetes
Aysen AKALINGokhan TEMIZNevbahar AKCARBanu SENSOY
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Volume 55 (2008) Issue 5 Pages 861-866

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Abstract

Objective: This study was designed in order to investigate the short term effects of atorvastatin on endothelial function and oxidized LDL (oxLDL) levels and to evaluate the association of endothelial dysfunction to oxLDL levels and inflammatory markers in type 2 diabetic patients. Material and Methods: Thirty type 2 diabetic and 11 healthy subjects with LDL levels between 100-160 mg/dl. without a history of cardiovascular event were included in the study. Both groups were matched with respect to age, gender, body mass indices and lipid levels. Flow- mediated dilatation (endothelium dependent, FMD) and nitroglycerine-induced dilatation (endothelium independent, NID) were measured in the brachial artery using high-resolution ultrasound in all participants and carotid artery intima media thickness (IMT) were also evaluated. OxLDL levels, lipid parameters, blood glucose, C-peptide, HbA1c and inflammatory markers including C-reactive protein (CRP), fibrinogen, erythrocyte sedimentation rate (ESR) were studied. Type 2 diabetic patients received 10 mg. Atorvastatin for 6 weeks and FMD and NID were reevaluated and oxLDL levels and inflammatory markers remeasured. Results: Basal FMD, NID, IMT and oxLDL levels besides inflammatory markers were not significantly different between patients and controls. No correlation was found between inflammatory markers and FMD and NID. Only IMT correlated with fibrinogen levels obtained before treatment. In non-diabetics, IMT also correlated with oxLDL levels (p: 0.013). FMD and NID significantly improved after atorvastatin therapy ((7.62 ± 7.6 vs. 12.65 ± 7.8, p<0.001 and 18.22 ± 9.57 vs. 21.43 ± 9.6, p: 0.007, respectively). Atorvastatin significantly reduced oxLDL levels (57.85 ± 10.33 vs. 44.36 ± 6.34, p<0.001). Conclusion: Atorvastatin improves endothelial functions and reduces oxLDL levels in type 2 diabetics with average lipid levels in the short term and may have beneficial effects in the prevention of early atherosclerotic changes.

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