title: Leptin, triglycerides, and interleukin 6 are independently associated with C-reactive protein in Japanese type 2 diabetic patients.
abstract: The aim of the present study was to investigate the factors contributing to the concentration of serum C-reactive protein in type 2 diabetic patients. One hundred and 48 Japanese type 2 diabetic patients were studied. In conjunction with C-reactive protein (CRP), BMI, systolic and diastolic blood pressure, glycosylated hemoglobin (HbA1c), fasting concentrations of plasma glucose, and serum lipids (triglycerides, HDL cholesterol, and total cholesterol), interleukin 6 (IL-6), and leptin were measured. Insulin resistance was also estimated by the insulin resistance index of homeostasis model assessment (HOMA-IR). With univariate analysis, serum CRP was positively correlated with BMI (r=0.281, P<0.001), diastolic blood pressure (r=0.176, P=0.048), triglycerides (r=0.293, P<0.001), HOMA-IR (r=0.294, P<0.001), IL-6 (r=0.323, P<0.001), and leptin (r=0.330, P<0.001), and negatively correlated with HDL cholesterol (r=-0.181, P=0.028). Multiple regression analyses showed that serum CRP was independently predicted by the level of IL-6 (P<0.001, F=4.04), leptin (P<0.001, F=7.09), and triglycerides (P<0.001, F=15.13), which explained 17.6% of the variability of serum CRP concentration in these patients. From these results, it can be concluded that along with IL-6 and triglycerides, leptin is another important independent factor that is associated with CRP in Japanese type 2 diabetic patients.
authors.affiliation: Division of Diabetes and clinical Nutrition, Kansai-Denryoku Hospital, Osaka Japan.
authors.forename: Takiko
authors.initials: T
authors.lastname: Yanagawa
authors.forename: Ataru
authors.initials: A
authors.lastname: Taniguchi
authors.forename: Mitsuo
authors.initials: M
authors.lastname: Fukushima
authors.forename: Yoshikatsu
authors.initials: Y
authors.lastname: Nakai
authors.forename: Shoichiro
authors.initials: S
authors.lastname: Nagasaka
authors.forename: Minako
authors.initials: M
authors.lastname: Ohgushi
authors.forename: Kazunari
authors.initials: K
authors.lastname: Matsumoto
authors.forename: Akira
authors.initials: A
authors.lastname: Kuroe
authors.forename: Michihiro
authors.initials: M
authors.lastname: Ohya
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Seino
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002097:C-Reactive Protein / Q000378:metabolism*; D002784:Cholesterol / Q000097:blood; D003924:Diabetes Mellitus, Type 2 / Q000097:blood*; D005260:Female; D006442:Glycated Hemoglobin / Q000378:metabolism; D006801:Humans; D015850:Interleukin-6 / Q000097:blood*; D007564:Japan; D020738:Leptin / Q000097:blood*; D008297:Male; D008875:Middle Aged; D012044:Regression Analysis; D014280:Triglycerides / Q000097:blood*
chemical_list: D002097:C-Reactive Protein; D002784:Cholesterol; D006442:Glycated Hemoglobin; D015850:Interleukin-6; D020738:Leptin; D014280:Triglycerides