近年来,随着以变应性鼻炎（AR）和变应性哮喘为代表的呼吸道变应性疾病在全球范围内发病率的升高,与之发病机制密切相关的CD4＋CD25＋T细胞及其特异性标志物Foxp3成为近年来的研究热点。在此前的实验中,我们对AR小鼠外周调节性T细胞（re...近年来,随着以变应性鼻炎（AR）和变应性哮喘为代表的呼吸道变应性疾病在全球范围内发病率的升高,与之发病机制密切相关的CD4＋CD25＋T细胞及其特异性标志物Foxp3成为近年来的研究热点。在此前的实验中,我们对AR小鼠外周调节性T细胞（regulatory T cell,Treg）的表达特征进行了研究,发现实验组与正常对照组外周血表达有显著性差异,而脾脏表达两组间无显著性差异[1]。展开更多
Obesity and diabetes mellitus are common metabolic diseases prevalent worldwide.Mice are commonly used to study the pathogenesis of these two conditions.Obesity and diabetes mellitus are induced by administering a hig...Obesity and diabetes mellitus are common metabolic diseases prevalent worldwide.Mice are commonly used to study the pathogenesis of these two conditions.Obesity and diabetes mellitus are induced by administering a high-fat diet in many studies although other diet-induced models are also used.Several factors may influence the outcome of the studies done to study diet-induced obesity in mice.The immune system plays a crucial role in the susceptibility of mice to develop obesity and metabolic disease.In this article,the reasons for differences in susceptibility to develop obesity and diabetes mellitus in mice in response to high-fat-diet feeding and the influence of immunological bias of the mice strain used in studies are evaluated.Mice strains that induce proinflammatory and Th1-type immune responses are found to be susceptible to high-fat-diet-induced obesity.A few studies which directly compared the effect of a high-fat diet on obesity and diabetic phenotype in Th1-and Th2-biased mice strains were briefly analyzed.Based on the observations,it is proposed that the liver and adipose tissue may respond differently to high-fat-diet feeding regimens in Th1-and Th2-biased mice strains.For instance,in Th1-biased mice,adipose tissue fat content was high both in the baseline as well as in response to a high-fat diet whereas in the liver,it was found to be less.It can be inferred that the immune responses to diet-induced models may provide insights into the pathogenesis of obesity and diabetes mellitus.展开更多
文摘近年来,随着以变应性鼻炎（AR）和变应性哮喘为代表的呼吸道变应性疾病在全球范围内发病率的升高,与之发病机制密切相关的CD4＋CD25＋T细胞及其特异性标志物Foxp3成为近年来的研究热点。在此前的实验中,我们对AR小鼠外周调节性T细胞（regulatory T cell,Treg）的表达特征进行了研究,发现实验组与正常对照组外周血表达有显著性差异,而脾脏表达两组间无显著性差异[1]。
文摘Obesity and diabetes mellitus are common metabolic diseases prevalent worldwide.Mice are commonly used to study the pathogenesis of these two conditions.Obesity and diabetes mellitus are induced by administering a high-fat diet in many studies although other diet-induced models are also used.Several factors may influence the outcome of the studies done to study diet-induced obesity in mice.The immune system plays a crucial role in the susceptibility of mice to develop obesity and metabolic disease.In this article,the reasons for differences in susceptibility to develop obesity and diabetes mellitus in mice in response to high-fat-diet feeding and the influence of immunological bias of the mice strain used in studies are evaluated.Mice strains that induce proinflammatory and Th1-type immune responses are found to be susceptible to high-fat-diet-induced obesity.A few studies which directly compared the effect of a high-fat diet on obesity and diabetic phenotype in Th1-and Th2-biased mice strains were briefly analyzed.Based on the observations,it is proposed that the liver and adipose tissue may respond differently to high-fat-diet feeding regimens in Th1-and Th2-biased mice strains.For instance,in Th1-biased mice,adipose tissue fat content was high both in the baseline as well as in response to a high-fat diet whereas in the liver,it was found to be less.It can be inferred that the immune responses to diet-induced models may provide insights into the pathogenesis of obesity and diabetes mellitus.
