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首页> 外文期刊>Parasitology >Effects of high-fat chow on heart tissue in acute and chronic experimental murine schistosomiasis mansoni.
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Effects of high-fat chow on heart tissue in acute and chronic experimental murine schistosomiasis mansoni.

机译:高脂食物对曼氏急性和慢性实验性小鼠血吸虫病心脏组织的影响。

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SUMMARY This study aimed to investigate myocardial injuries in mice infected with Schistosoma mansoni and fed a high-fat chow. Sections of myocardial tissue from S. mansoni-infected mice, and controls that had been killed 9 and 17 weeks post-infection, were stained with H&E and Picrosirius red. Histopathological examination, stereological design-based method (optical disector) and morphometry (vessels, cardiomyocytes and an amount of collagen) were used. Data were analysed using two-way ANOVA. Regardless of time of infection, myocardial tissue from the infected mice fed high-fat chow showed myocarditis characterized by a higher number of inflammatory foci, several areas displaying coagulation of cardiac fibres, a greater loss of cardiomyocytes and fibroblast proliferation than in the standard chow control. Comparing infected mice from acute and chronic infections, a higher cardiomyocyte hyperplasia (P??0·05) than in the standard chow control. Altogether the data supported the view that a double burden has a synergistic deleterious effect on the myocardial tissue.
机译:概述这项研究旨在调查曼氏血吸虫感染和高脂食物对小鼠的心肌损伤。用H&E和Picrosirius红染色感染曼氏沙门氏菌的小鼠的心肌组织切片,以及在感染后9和17周被杀死的对照。使用组织病理学检查,基于立体设计的方法(光学解剖器​​)和形态测定法(血管,心肌细胞和一定量的胶原蛋白)。使用双向方差分析对数据进行分析。不论感染时间长短,高脂食物喂养的被感染小鼠的心肌组织均表现出炎性灶数量多,心肌纤维凝结,心肌细胞损失和成纤维细胞增殖损失多于标准食物对照组的特征。 。比较急性和慢性感染的受感染小鼠,与标准食物对照组相比,观察到较高的心肌细胞增生(P 0·0001)和较高的胶原蛋白含量(P 0·05)。此外,所有饲喂高脂食物的动物均显示出比标准动物更低的数值密度和总心肌细胞数量(P0 0·05),较厚的血管壁和狭窄的腔内心肌内血管(P0> <0·05>)。控制食物。总体而言,数据支持这样的观点,即双重负担对心肌组织具有协同的有害作用。

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