Blue poo: impact of gut transit time on the gut microbiome using a novel marker.

Blue poo: impact of gut transit time on the gut microbiome using a novel marker.
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蓝色粪便:使用一种新的标记,肠道通过时间对肠道微生物组的影响。

DOI:
10.1136/gutjnl-2020-323877
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发表时间:
2021-09
期刊:
Gut
影响因子:
24.5
通讯作者:
Berry SE
Berry SE
中科院分区:
医学1区
文献类型:
--
作者:
Asnicar F;Leeming ER;Dimidi E;Mazidi M;Franks PW;Al Khatib H;Valdes AM;Davies R;Bakker E;Francis L;Chan A;Gibson R;Hadjigeorgiou G;Wolf J;Spector TD;Segata N;Berry SE

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肠道通过时间是宿主-微生物组相互作用的关键调节因子,但这一点经常被忽视,部分原因是可靠的方法通常昂贵或繁琐。这项单组、单盲干预研究的目的是评估(1)肠道通过时间与人类肠道微生物组之间的关系,以及(2)“蓝色染料”方法作为一种廉价且可扩展的测量通过时间的技术的实用性。我们评估了来自PREDICT 1研究的863名健康个体的肠道微生物组的分类和功能潜力概况(通过鸟枪宏基因组测序进行分析),肠道通过时间(通过蓝色染料法测量),心脏代谢健康和饮食之间的相互作用。我们发现,肠道微生物组分类组成可以准确区分肠道通过时间类别(受试者工作特征曲线下面积为0.82),较长的肠道通过时间与特定的微生物物种(如嗜粘蛋白阿克曼氏菌、拟杆菌属和Alistipes属)有关(错误发现率调整p值<0.01)。肠道通过时间的蓝色染料测量与肠道微生物组的相关性最强,超过了典型的通过时间代理,如粪便稠度和频率。通过蓝色染料法测量的肠道通过时间是肠道微生物组功能的一个比传统的粪便稠度和频率测量更有信息量的标志物。蓝色染料法可用于大规模流行病学研究,以推进饮食-微生物组-健康研究。临床试验注册网站https://clinicaltrials.gov/ct2/show/NCT03479866和试验编号NCT 03479866。
Gut transit time is a key modulator of host–microbiome interactions, yet this is often overlooked, partly because reliable methods are typically expensive or burdensome. The aim of this single-arm, single-blinded intervention study is to assess (1) the relationship between gut transit time and the human gut microbiome, and (2) the utility of the ‘blue dye’ method as an inexpensive and scalable technique to measure transit time. We assessed interactions between the taxonomic and functional potential profiles of the gut microbiome (profiled via shotgun metagenomic sequencing), gut transit time (measured via the blue dye method), cardiometabolic health and diet in 863 healthy individuals from the PREDICT 1 study. We found that gut microbiome taxonomic composition can accurately discriminate between gut transit time classes (0.82 area under the receiver operating characteristic curve) and longer gut transit time is linked with specific microbial species such as Akkermansia muciniphila, Bacteroides spp and Alistipes spp (false discovery rate-adjusted p values <0.01). The blue dye measure of gut transit time had the strongest association with the gut microbiome over typical transit time proxies such as stool consistency and frequency. Gut transit time, measured via the blue dye method, is a more informative marker of gut microbiome function than traditional measures of stool consistency and frequency. The blue dye method can be applied in large-scale epidemiological studies to advance diet-microbiome-health research. Clinical trial registry website https://clinicaltrials.gov/ct2/show/NCT03479866 and trial number NCT03479866.
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影响因子: 7.6
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