Journal of Atherosclerosis and Thrombosis
Online ISSN : 1880-3873
Print ISSN : 1340-3478
ISSN-L : 1340-3478
Original Article
Pitavastatin Reduces Elevated IL-18 Levels in Japanese Subjects with Hypercholesterolemia: Sub-analysis of Kansai Investigation of Statin for Hyperlipidemic Intervention in Metabolism and Endocrinology (KISHIMEN)
Yoshio FujiokaAkira FukudaTatsuro IshidaShinji KagimotoYoshio NakamuraAkane IwakuraKyoko HaraTaizo YamamotoAkira KuroeMichihiro OhyaShinpei FujimotoYoshiyuki HamamotoSachiko HonjoHiroki IkedaKoichiro NabeKinsuke TsudaAtaru TaniguchiKiyoshi TanakaHiroyuki KoshiyamaNoriaki KumeKen-ichi Hirata
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2011 年 18 巻 1 号 p. 8-15

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Aim: Pitavastatin significantly improved lipid profiles and reduced serum high-sensitivity C-reactive protein (hs-CRP) levels in a multi-center and prospective study. The aim of this study was to explore the effect of pitavastatin on serum levels of another inflammatory biomarker, interleukin-18 (IL-18), in a sub-analysis of the previous multi-center prospective study.
Methods: The subjects were 83 patients derived from the KISHIMEN study. Pitavastatin (1-2 mg/day) was administered for 12 months. Serum total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), remnant-like particle cholesterol (RLP-C), triglycerides (TG), IL-18, and high sensitivity C-reactive protein (hs-CRP) levels were measured.
Results: TC, LDL-C, and RLP-C levels were significantly reduced by 18.3%, 30.1%, and 21.0% (mean values) at 12 months after pitavastatin administration. TG levels were decreased by 9.8% in subjects whose basal TG levels were above 150 mg/dL. HDL-C levels were significantly increased at 6 months (11.9%). Pitavastatin did not significantly alter IL-18 levels in overall subjects, but reduced IL-18 levels in the highest quartile by 24.5% (median value) at 12 months. Pitavastatin significantly reduced hs-CRP levels by 28.6% in overall subjects and by 62.4% in the highest quartile at 12 months. There was a significant correlation between IL-18 and hs-CRP at baseline after both values were transformed into logarithms (Pearson's correlation coefficient, r=0.259, p=0.0181); however, percent changes in these levels were not significantly correlated.
Conclusion: Pitavastatin significantly improves lipid profiles, and reduces enhanced inflammation monitored by IL-18, as well as by hs-CRP, in hypercholesterolemic subjects.

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この記事はクリエイティブ・コモンズ [表示 - 非営利 - 継承 4.0 国際]ライセンスの下に提供されています。
https://creativecommons.org/licenses/by-nc-sa/4.0/deed.ja
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