Effects of eicosapentaenoic acid on platelet activation markers and cell adhesion molecules in hyperlipidemic patients with Type 2 diabetes mellitus.
We compared the levels of microparticles, platelet activation markers, soluble cell adhesion molecules, soluble selectins, and antioxidized low-density lipoprotein (anti-Ox LDL) antibody between patients with hyperlipidemia and control subjects. Binding of anti-glycoprotein (GP) IIb/IIIa and anti-GPIb monoclonal antibodies to platelets did not differ significantly between the hyperlipidemic patients and controls. However, expression of activation markers (CD62P, CD63, PAC-1, and annexin V) by platelets was higher in the hyperlipidemic patients with Type 2 diabetes. The levels of platelet-derived microparticles (PDMPs) and monocyte-derived microparticles (MDMPs) were significantly different in hyperlipidemic patients with Type 2 diabetes and controls. Soluble P-selectin (sP-selectin), soluble E-selectin (sE-selectin), and anti-Ox LDL antibody also showed higher levels in the hyperlipidemic patients with Type 2 diabetes. After treatment with eicosapentaenoic acid (EPA), the levels of CD62P, CD63, annexin V, PDMPs, and MDMPs, sE-selectin, and oxidized LDL antibody were reduced significantly. Triglyceride (TG) and total cholesterol levels were also decreased. Anti-Ox LDL antibodies and MDMPs were correlated positively with platelet CD62P (plt-CD62P) levels. These findings suggest that in hyperlipidemic patients with Type 2 diabetes, EPA may prevent complications caused by oxidized LDL, E-selectin, and activated platelets or monocytes.
First Department of Internal Medicine, Kansai Medical University, 10-15 Fumizonocho, Moriguchi, Osaka 570-8507, Japan. shosaku-n@mbp.sphere.ne.jp
Shosaku
S
Nomura
Shigenori
S
Kanazawa
Shirou
S
Fukuhara
D015703:Antigens, CD / Q000097:blood; D001323:Autoantibodies / Q000097:blood; D015815:Cell Adhesion Molecules / Q000097:blood*; D003924:Diabetes Mellitus, Type 2 / Q000097:blood* / Q000150:complications / Q000276:immunology; D015118:Eicosapentaenoic Acid / Q000494:pharmacology*; D005260:Female; D006801:Humans; D006949:Hyperlipidemias / Q000097:blood* / Q000150:complications / Q000276:immunology; D007958:Leukocyte Count; D008297:Male; D008875:Middle Aged; D015539:Platelet Activation / Q000187:drug effects / Q000502:physiology*; D010976:Platelet Count; D019039:Platelet Glycoprotein GPIIb-IIIa Complex / Q000032:analysis; D012016:Reference Values; D014280:Triglycerides / Q000097:blood
D015703:Antigens, CD; D001323:Autoantibodies; D015815:Cell Adhesion Molecules; D019039:Platelet Glycoprotein GPIIb-IIIa Complex; D014280:Triglycerides; D015118:Eicosapentaenoic Acid