Infant gut microbiome composition is associated with non-social fear behavior in a pilot study.

Infant gut microbiome composition is associated with non-social fear behavior in a pilot study.
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在一项试点研究中,婴儿肠道微生物组组成与非社会恐惧行为有关。

DOI:
10.1038/s41467-021-23281-y
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发表时间:
2021-06-02
影响因子:
16.6
通讯作者:
Knickmeyer RC
Knickmeyer RC
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Carlson AL;Xia K;Azcarate-Peril MA;Rosin SP;Fine JP;Mu W;Zopp JB;Kimmel MC;Styner MA;Thompson AL;Propper CB;Knickmeyer RC

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对动物模型中肠道微生物的实验操作改变了恐惧行为和相关的神经回路。对于人类来说,生命的第一年是大脑发育、恐惧感出现和肠道微生物组建立的关键时期。婴儿肠道微生物组的变化此前已被认为与认知发展有关,但其与恐惧行为和神经回路的关系尚不清楚。在这项针对 34 名婴儿的初步研究中,我们发现 1 岁肠道微生物组组成(加权 Unifrac;拟杆菌丰度较低,韦荣球菌、拨号菌和梭状芽胞杆菌丰度增加)与非社交恐惧范式中恐惧行为的增加显着相关。 1个月内微生物组丰富度增加且均匀度降低的婴儿也会表现出更多的非社交恐惧。这项研究表明,人类婴儿肠道微生物组与恐惧行为之间存在关联,并在一个小队列的基础上表明了与恐惧相关的大脑结构之间可能存在的关系。因此,它代表了理解肠道微生物组在人类恐惧行为发展中的作用的重要一步,但需要更多参与者的进一步验证。在动物模型中对肠道微生物组进行实验操作会影响恐惧行为。在这里,作者在一项试点研究中表明,在基于实验室的评估过程中,人类婴儿肠道微生物组的特征与非社交恐惧行为相关。
Experimental manipulation of gut microbes in animal models alters fear behavior and relevant neurocircuitry. In humans, the first year of life is a key period for brain development, the emergence of fearfulness, and the establishment of the gut microbiome. Variation in the infant gut microbiome has previously been linked to cognitive development, but its relationship with fear behavior and neurocircuitry is unknown. In this pilot study of 34 infants, we find that 1-year gut microbiome composition (Weighted Unifrac; lower abundance of Bacteroides, increased abundance of Veillonella, Dialister, and Clostridiales) is significantly associated with increased fear behavior during a non-social fear paradigm. Infants with increased richness and reduced evenness of the 1-month microbiome also display increased non-social fear. This study indicates associations of the human infant gut microbiome with fear behavior and possible relationships with fear-related brain structures on the basis of a small cohort. As such, it represents an important step in understanding the role of the gut microbiome in the development of human fear behaviors, but requires further validation with a larger number of participants. Experimental manipulation of the gut microbiome in animal models impacts fear behaviours. Here, the authors show in a pilot study that features of the human infant gut microbiome are associated with non-social fear behaviours during a laboratory based assessment.
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发表时间: 2016
影响因子: 2.9
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