Premium
Insulin sensitivity independently influences brachial–ankle pulse‐wave velocity in non‐diabetic subjects
Author(s) -
Kasayama S.,
Saito H.,
Mukai M.,
Koga M.
Publication year - 2005
Publication title -
diabetic medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.474
H-Index - 145
eISSN - 1464-5491
pISSN - 0742-3071
DOI - 10.1111/j.1464-5491.2005.01718.x
Subject(s) - medicine , pulse wave velocity , arterial stiffness , blood pressure , cardiology , endocrinology , insulin resistance , diabetes mellitus , brachial artery , ankle , insulin , surgery
Aims Measurement of pulse‐wave velocity (PWV) is a non‐invasive technique for assessing arterial stiffness. Although insulin resistance is associated with intimal–medial thickness of the carotid artery evaluated by B‐mode ultrasonography, it is not known whether it is related to PWV. The aim of this study was to determine the relationship between homeostasis model assessment insulin sensitivity index (HOMA‐%S) and PWV in non‐diabetic subjects. We also examined the effects of oral glucose tolerance test (OGTT) 2‐h glucose and plasma high‐sensitivity C‐reactive protein (CRP) on PWV, as these two parameters are associated with atherosclerosis. Methods A 75‐g oral glucose tolerance test was performed in 1934 Japanese subjects who were undergoing health examinations. Of these subjects, we recruited 1541 non‐diabetic subjects without chronic or acute inflammation, malignant diseases, autoimmune disorders, elevated serum creatinine levels, and abnormal hepatic function tests. Subjects who had an abnormal ankle/brachial blood pressure index of less than 0.9 were also excluded. Brachial‐ankle PWV and plasma high‐sensitivity CRP were measured on 1541 subjects who satisfied the admission criteria. Results PWV was 12.55 ± 1.61 (mean ± sd ) m/s and plasma CRP concentration was 0.4 mg/l (median, range, 0.1–5.8 mg/l) in the study subjects. By multivariate regression analysis, HOMA‐%S was found to be an independent negative risk factor for PWV, while systolic blood pressure, age and triglycerides were positively associated with PWV. OGTT 2‐h glucose was weakly and independently related to PWV in male subjects. Plasma CRP was not independently associated with PWV. Conclusions Insulin resistance is independently associated with PWV in non‐diabetic subjects.