1.Effect of Omega-3 Fatty Acids on Low Density Lipoprotein Subfraction, Adiponectin and Apolipoprotein B in Type 2 Diabetic Patients.
Haejung JUN ; Junghae KO ; Hyesook JUNG ; Changshin YOON ; Taekyoon KIM ; Minjeong KWON ; Soonhee LEE ; Jihye SUK ; Mikyung KIM ; Dukkyu KIM ; Jeong Hyun PARK
Endocrinology and Metabolism 2011;26(3):218-224
BACKGROUND: Omega-3 fatty acids derived from fish oil have been reported to exert a beneficial effect on reducing cardiovascular disease. Reports about their mechanism have generated several interesting findings, including a change in small dense low density lipoprotein (sdLDL) cholesterol proportion, adiponectin, and apolipoprotein B (apoB), in addition to changes in the lipid profile. The principal objective of our study was to evaluate the effects of omega-3 fatty acids on plasma sdLDL, adiponectin, apoB100, and B48 in type 2 diabetic patients with hypertriglyceridemia. METHODS: We randomized 28 type 2 diabetic patients in a placebo-controlled, double-blind trial to receive either omega-3 fatty acids or placebo, both administered at a dose of 4 g daily for 12 weeks. LDL subfractions prior to and after treatment were separated via low-speed ultracentrifugation and analyzed via immunoelectrophoresis. Adiponectin, apoB100, and B48 levels were measured using an ELISA kit. RESULTS: sdLDL proportions were reduced in the omega-3 fatty acids group by 11% after 12 weeks of treatment (n = 17, P = 0.001), and were reduced by 4% in the control group (n = 11, P = 0.096). The patients receiving the omega-3 fatty acids evidenced a significant reduction in the levels of triglyceride (P = 0.001), apoB100, and B48 after 12 weeks (P = 0.038 and P = 0.009, respectively) relative to the baseline. Omega-3 fatty acids supplementation increased fasting blood glucose (P = 0.011), but the levels of HbA1c in each group did not change to a statistically significance degree. The adiponectin value was not reduced in the omega-3 fatty acids group (P = 0.133); by way of contrast, the placebo group evidenced a significant reduction in adiponectin value after 12 weeks (P = 0.002). CONCLUSION: Omega-3 fatty acid treatment proved effective in the reduction of atherogenic sdLDL and apoB in type 2 diabetic patients (Clinical trials reg. no. NCT 00758927, clinicaltrials.gov).
Adiponectin
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Apolipoprotein B-48
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Apolipoproteins
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Apolipoproteins B
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Blood Glucose
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Cardiovascular Diseases
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Cholesterol
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Diabetes Mellitus, Type 2
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Enzyme-Linked Immunosorbent Assay
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Fasting
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Fatty Acids, Omega-3
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Humans
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Immunoelectrophoresis
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Lipoproteins
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Plasma
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Ultracentrifugation