首页> 外文期刊>Journal of Neuroimmunology: Official Bulletin of the Research Committee on Neuroimmunology of the World Federation of Neurology >Intermittent fasting modulates IgA levels in the small intestine under intense stress: A mouse model
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Intermittent fasting modulates IgA levels in the small intestine under intense stress: A mouse model

机译:间歇性禁食在强烈压力下调节小肠中的IgA水平:小鼠模型

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Intermittent fasting prolongs the lifespan and unlike intense stress provides health benefits. Given the role of the immunoglobulin A (IgA) in the intestinal homeostasis, the aim of this study was to assess the impact of intermittent fasting plus intense stress on secretory IgA (SIgA) production and other mucosal parameters in the duodenum and ileum. Two groups of six mice, with intermittent fasting or fed ad libitum for 12 weeks, were submitted to a session of intense stress by a bout of forced swimming. Unstressed ad libitum fed or intermittently fasted groups were included as controls. After sacrifice, we evaluated intestinal SIgA and plasma adrenal hormones, lamina propria IgA+ plasmacells, mRNA expression of polymeric immunoglobulin receptor, alpha- and J-chains in the liver and intestinal mucosa, as well as pro- (tumor necrosis factor-alpha, interleukin-6 and Interferon-gamma) and anti- (interleukin-2, -4, -10 and transforming growth factor-beta) inflammatory cytokines in mucosal samples. Under intense stress, intermittent fasting down- or up-modulated the levels of most parameters in the duodenum and ileum, respectively while up-regulated corticosterone levels without affecting epinephrine. Our data suggest intermittent fasting plus intense stress elicited neuroendocrine pathways that differentially controlled IgA and pIgR expression in duodenum and ileum. These findings provide experimental foundations for a presumable impact of intermittent fasting under intense stress on the intestinal homeostasis or inflammation by triggering or reducing the IgA production in ileum or duodenum respectively. (C) 2015 Elsevier B.V. All rights reserved.
机译:间歇性禁食可以延长寿命,并且与强烈的压力不同,它可以带来健康益处。考虑到免疫球蛋白A(IgA)在肠道稳态中的作用,本研究的目的是评估间歇性禁食加强压力对十二指肠和回肠分泌性IgA(SIgA)产生及其他黏膜参数的影响。两组六只小鼠,间歇性禁食或随意进食12周,通过一轮强制游泳对它们施加强烈的压力。随意喂养随意或禁食的组作为对照组。处死后,我们评估了肠道SIgA和血浆肾上腺激素,固有层IgA +浆细胞,聚合物免疫球蛋白受体的mRNA表达,肝和肠黏膜中的α-链和J链,以及促肿瘤坏死因子-α,白介素黏膜样本中的-6和干扰素-γ)和抗(白介素2,-4,-10和转化生长因子β)炎症细胞因子。在强烈的压力下,间歇性的禁食分别降低或升高了十二指肠和回肠中大多数参数的水平,而同时升高了皮质酮水平而又不影响肾上腺素。我们的数据表明,间歇性禁食加强烈压力会引起神经内分泌途径,从而差异性控制十二指肠和回肠中的IgA和pIgR表达。这些发现为分别通过触发或减少回肠或十二指肠中IgA的产生,在强压力下间歇性禁食对肠道稳态或炎症的可能影响提供了实验基础。 (C)2015 Elsevier B.V.保留所有权利。

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