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Effects of obesity on IL-33/ST2 system in heart, adipose tissue and liver: study in the experimental model of Zucker rats

机译:肥胖对心脏,脂肪组织与肝脏IL-33 / ST2系统的影响:Zucker大鼠实验模型研究

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Suppression of tumorigenicity 2 (ST2) mediates the effect of Interleukin-33 (IL-33). Few data are reported on the relationship between IL-33/ST2 and obesity. We aimed to investigate effects of obesity on IL-33/ST2 system in heart, adipose tissue and liver in a rodent model of obesity. The relationship of cardiac expression of IL-33/ ST2 system with natriuretic peptides (NPs) system and inflammatory mediators was also studied. mRNA expression of IL-33/ ST2 system was evaluated in cardiac, adipose and hepatic biopsies from obese Zucker rats (O) and controls (CO). Expression levels of sST2 was significantly lower in O rats compared with CO (p < 0.05) in all tissues. Besides, the mRNA levels of IL-33 decreased significant in fat of O respect to CO, while, expression levels of ST2L was significantly higher in liver of CO than in O. A strong relationship of IL-33/ ST2 with NPs and classical inflam-matorymediatorswas observed in cardiac tissue. Expression of sST2 in cardiac, adipose and liver tissue decreased in O compared with controls, suggesting an involvement for IL-33/ST2 system in molecular mechanisms of obesity. The strong relationships with NP systems and inflammatory mediators could suggest an involvement for IL33/ST2 in molecular pathways leading to cardiac dysfunction and inflammation associated with obesity. (C) 2017 Elsevier Inc. All rights reserved.
机译:抑制肿瘤肝脏2(ST2)介导白细胞介素-33(IL-33)的作用。报告了IL-33 / ST2与肥胖之间的关系的数据。我们的旨在调查肥胖肥胖模型中肥胖症对IL-33 / ST2系统对IL-33 / ST2系统的影响。还研究了IL-33 / ST2系统与利钠肽(NPS)系统和炎症介质的心脏表达的关系。来自肥胖Zucker大鼠(O)和对照(CO)的心脏,脂肪和肝活组织检查评估IL-33 / ST2系统的mRNA表达。与所有组织中的CO(P <0.05)相比,o大鼠SST2的表达水平显着降低。此外,IL-33的MRNA水平在O的ade上的脂肪脂肪下降,而CO的肝脏的表达水平明显高于O. IL-33 / ST2与NPS和古典焚烧的强大关系 - 在心脏组织中观察到的mmationMediatorswas。与对照组相比,o表达SST2在心脏,脂肪和肝组织中的表达,表明IL-33 / ST2系统在肥胖的分子机制中受累。与NP系统和炎症介质的强烈关系可以提示患有IL33 / ST2的分子途径,导致心脏功能障碍和与肥胖相关的炎症。 (c)2017年Elsevier Inc.保留所有权利。

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