The association of plasma adiponectin level with carotid arterial stiffness.
Adiponectin plays important roles in protecting against both insulin resistance and the development of atherosclerosis. The aim of the present study was to investigate the clinical impact of plasma adiponectin on arterial stiffness, a functional property of atherosclerosis, in type 2 diabetic and nondiabetic subjects. We evaluated plasma adiponectin levels and stiffness index beta for the common carotid artery assessed by ultrasound using a phase-locked echo-tracking system for 98 type 2 diabetic subjects and 116 nondiabetic subjects as controls. Plasma adiponectin levels were significantly lower in the diabetic than in the nondiabetic group. The stiffness index beta was significantly higher in the diabetic than in the nondiabetic group. Plasma adiponectin level was significantly correlated with stiffness index beta in the group of all subjects (r=-0.189, P=.006) and the nondiabetic group (r=-0.187, P=.045), but not in the diabetic group (r=0.045, P=.665). On multiple regression analysis, plasma adiponectin level was found to be a significant independent contributor to stiffness index beta in the group of all subjects (beta=-0.232, P=.020) and the nondiabetic group (beta=-0.337, P=.016), but not in the diabetic group. In conclusion, adiponectin is significantly but weakly associated with carotid arterial stiffness independently of known atherogenic factors in the nondiabetic group and that of all subjects, although no significant association between these variables was found in the group of diabetic subjects.
Araki
Takahiro
T
Metabolism, Endocrinology, and Molecular Medicine, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan.
Emoto
Masanori
M
Yokoyama
Hisayo
H
Maeno
Takaaki
T
Hatsuda
Sawako
S
Mori
Katsuhito
K
Koyama
Hidenori
H
Shoji
Tetsuo
T
Inaba
Masaaki
M
Nishizawa
Yoshiki
Y
D052242:Adiponectin / Q000097:blood*; D001794:Blood Pressure / Q000502:physiology; D002097:C-Reactive Protein / Q000032:analysis; D002340:Carotid Artery Diseases / Q000097:blood*; D017536:Carotid Artery, Common / Q000000981:diagnostic imaging / Q000473:pathology*; D002784:Cholesterol / Q000097:blood; D003924:Diabetes Mellitus, Type 2 / Q000097:blood*; D005260:Female; D005919:Glomerular Filtration Rate / Q000502:physiology; D006801:Humans; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D014280:Triglycerides / Q000097:blood; D014463:Ultrasonography
D052242:Adiponectin; D014280:Triglycerides; D002097:C-Reactive Protein; D002784:Cholesterol