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Comparison of the effects of soluble corn fiber and fructooligosaccharides on metabolism, inflammation and gut microbiome of high-fat diet fed mice.
American Journal of Physiology-Endocrinology and Metabolism ( IF 4.2 ) Pub Date : 2020-08-24 , DOI: 10.1152/ajpendo.00108.2020
Matthias Van Hul 1 , Kavita Karnik 2 , Kirstie Canene-Adams 2 , Mervyn De Souza 2 , Pieter Van den Abbeele 3 , Massimo Marzorati 3, 4 , Nathalie M Delzenne 1 , Amandine Everard 1 , Patrice D Cani 1
Affiliation  

Dietary fibers are essential components of a balanced diet and have beneficial effects on metabolic functions. To gain insight into their impact on host physiology and gut microbiota, we performed a direct comparison of two specific prebiotics fibers in mice. During an 8-week follow up, mice fed a high-fat diet (HFD) were compared to mice on a normal diet (basal condition, controls) and to mice fed the HFD but treated with one of the following prebiotics: Fructooligosaccharides (FOS) or soluble corn fiber (SCF). Both prebiotic fibers led to a similar reduction of body weight and fat mass, lower inflammation and improved metabolic parameters. However, these health benefits were the result of different actions of the fibers, as SCF impacted on energy excretion, whereas FOS did not. Interestingly, both fibers had very distinct gut microbial signatures with different short chain fatty acid profiles, indicating that they do not favor the growth of the same bacterial communities. Although the prebiotic potential of different fibers may seem physiologically equivalent, our data show that the underlying mechanisms of action are different and this by targeting different gut microbes. Altogether our data provide evidence that beneficial health effects of specific dietary fibers must be documented to be considered a prebiotic, and that studies devoted to understanding how structures relate to specific microbiota modulation and metabolic effects are warranted.

中文翻译:

比较可溶性玉米纤维和低聚果糖对高脂饮食喂养小鼠的代谢,炎症和肠道微生物组的影响。

膳食纤维是均衡饮食的重要组成部分,对代谢功能具有有益作用。为了深入了解它们对宿主生理和肠道菌群的影响,我们对小鼠中两种特定的益生元纤维进行了直接比较。在为期8周的随访中,将高脂饮食(HFD)的小鼠与正常饮食(基础条件,对照)的小鼠和高脂饮食但经以下益生元之一治疗的小鼠进行了比较:低聚果糖(FOS) )或可溶性玉米纤维(SCF)。两种益生元纤维均导致类似的体重和脂肪减少,炎症减少和代谢参数改善。然而,这些健康益处是纤维的不同作用的结果,因为SCF影响能量排泄,而FOS则不然。有趣的是 两种纤维都具有非常独特的肠道微生物特征,并具有不同的短链脂肪酸谱,这表明它们不利于相同细菌群落的生长。尽管不同纤维的益生元潜力在生理上似乎是等效的,但我们的数据表明其潜在的作用机制是不同的,并且其针对的是不同的肠道微生物。总而言之,我们的数据提供了证据,表明必须将特定膳食纤维的有益健康作用记录为益生元,并且有必要进行专门研究以了解结构与特定微生物群调节和代谢作用之间的关系的研究。尽管不同纤维的益生元潜力在生理上似乎是等效的,但我们的数据表明其潜在的作用机制是不同的,并且这通过针对不同的肠道微生物来实现。总而言之,我们的数据提供了证据,表明必须将特定膳食纤维的有益健康作用记录为益生元,并且有必要进行专门研究以了解结构与特定微生物群调节和代谢作用之间的关系的研究。尽管不同纤维的益生元潜力在生理上似乎是等效的,但我们的数据表明其潜在的作用机制是不同的,并且这通过针对不同的肠道微生物来实现。总而言之,我们的数据提供了证据,表明必须将特定膳食纤维的有益健康作用记录为益生元,并且有必要进行专门研究以了解结构与特定微生物群调节和代谢作用之间的关系的研究。
更新日期:2020-08-24
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