Diabetes Care, Vol 20, Issue 5 829-831, Copyright © 1997 by American Diabetes Association

ARTICLES

Carotid atherosclerosis and serum lipoprotein(a) concentrations in patients with NIDDM

M Yamamoto, G Egusa and M Yamakido
Second Department of Internal Medicine, Hiroshima University School of Medicine, Japan. maki@mcai.med.hiroshima-u.ac.jp

OBJECTIVE: To investigate the association of carotid atherosclerosis and serum lipoprotein(a) [Lp(a)] concentrations in subjects with NIDDM. RESEARCH DESIGN AND METHODS: We measured carotid intima-media thickness (IMT) and Lp(a) concentrations in 117 NIDDM subjects. Subjects were divided into tertiles according to IMT values and number of plaques. RESULTS: Serum Lp(a), but not lipid and apoprotein levels, increased significantly with increasing IMT (20.0 +/- 2.3, 24.7 +/- 3.3, and 39.8 +/- 4.3 mg/dl [mean +/- SE], respectively, P < 0.001). Serum Lp(a) increased with increasing number of plaques (18.4 +/- 2.5 mg/dl in 59 subjects with no plaques, 25.8 +/- 2.5 mg/dl in 24 subjects with 1 plaque, and 38.7 +/- 5.1 mg/dl in 34 subjects with more than 1 plaque; P < 0.05). Furthermore, the mean IMT and Lp(a) levels in the subjects with cerebrovascular disease (CD) were significantly higher than in those without CD (1.25 +/- 0.04 mm and 41.2 +/- 4.7 mg/dl vs. 1.08 +/- 0.03 mm and 22.2 +/- 1.9 mg/dl; P < 0.005). The mean IMT and Lp(a) levels were higher in subjects with ischemic heart disease (IHD) than in those without IHD, although statistical significance was not observed (1.21 +/- 0.06 mm and 31.7 +/- 4.7 mg/dl vs. 1.10 +/- 0.03 mm and 27.0 +/- 2.4 mg/dl, respectively). CONCLUSIONS: Elevated serum Lp(a) concentrations are associated with carotid atherosclerosis in NIDDM subjects.
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