Short Report: Association of IL-15 with Peripheral and Hepatic Insulin Sensitivity in Healthy Middle-Aged Men

作     者：Yuichiro Nishida Kumpei Tokuyama Shoichiro Nagasaka Akira Kiyonaga Yasuki Higaki Megumi Hara Keitaro Tanaka Hiroaki Tanaka 

作者机构：Department of Preventive Medicine Faculty of Medicine Saga University Saga Japan Division of Endocrinology and Metabolism Department of Medicine Jichi Medical University Tochigi Japan Laboratory of Biochemistry of Exercise and Nutrition Institute of Health and Sport Sciences University of Tsukuba Ibaraki Japan Laboratory of Exercise Physiology Faculty of Health and Sports Science Fukuoka University Fukuoka Japan 

出 版 物：《Open Journal of Endocrine and Metabolic Diseases》 (内分泌与新陈代谢疾病期刊（英文）)

年 卷 期：2014年第4卷第3期

页      面：59-67页

学科分类：1002[医学-临床医学] 100201[医学-内科学(含：心血管病、血液病、呼吸系病、消化系病、内分泌与代谢病、肾病、风湿病、传染病)] 10[医学] 

主　　题：Inflammatory Cytokine Interleukin Adipokine Insulin Sensitivity 

摘      要：Rodent study suggests that interleukin (IL)-15 administration enhances insulin sensitivity. Although it is well known that circulating levels of typical inflammatory markers (C-reactive protein [CRP] and IL-6) are positively associated with homeostasis model assessment-insulin resistance (HOMA-IR), there are no studies investigating the associations of other inflammatory markers including IL-15 with peripheral/hepatic insulin sensitivity in humans. The current study aimed to examine the relationship between the levels of adiopokines or inflammatory cytokines and insulin sensitivity in 8 healthy middle-aged men. Circulating levels of 10 insulin sensitizing adipokines or inflammatory cytokines (total adiponectin [APN], high molecular weight adiponectin [HMW-APN], IL-4, IL-5, IL-6, IL-8, IL-15, interferon [IFN]-γ, tumor necrosis factor [TNF]-α, and TNF-β) were measured. A stable-labeled frequently sampled intravenous glucose tolerance test was performed to assess peripheral () and hepatic () insulin sensitivity estimated by 2-compartment minimal model. The levels of 3 inflammatory cytokines (IL-4, IL-6, and IL-15) were significantly and inversely correlated with either and . The association between IL-15 and either or was significant even after adjusting for age and percent body fat (p 0.01). The current study showed a possible inverse association between serum IL-15 level and peripheral/hepatic insulin sensitivity in healthy middle-aged males, independent of percent body fat;this association in humans warrants further study.