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人体肠道微生物产生特定物种的神经活性化合物

Anna M Tingler¹, Charulekha Packirisamy¹, Alyssa Gutierrez¹

¹Department of Regenerative Medicine & Cell Biology, Medical University of South Carolina, Charleston, SC, USA.

|February 3, 2026

概括

肠道细菌从营养物质中产生各种神经活性化合物,如氨酸 (GABA) 和胺. 这突出了肠道微生物群.

科学领域:

微生物学微生物学
神经科学是一个神经科学.
代谢学代谢学代谢学

背景情况:

肠道微生物群在产生神经活性分子中的作用尚未完全理解.
众所周知,共生细菌通过各种代谢物影响宿主生理学.

研究的目的:

为了识别由八种常见的肠道细菌物种产生的特定神经活性代谢物.
研究这些细菌的氨基酸消耗和神经化学物质的产生.

主要方法:

使用有针对性的和非有针对性的液体染色学-并联质谱法 (LC-MS/MS).
分析了八种开始性肠道细菌物种的代谢物概况: * 乳球菌乳球菌*, * 乳球菌乳球菌, * 乳球菌, * 蓝球菌产物, * 密室菌共生体, * 热球菌菌, * 普雷沃特拉·科普里, * 细菌菌易碎, * 和 * 埃舍里希亚大肠杆菌 * 尼斯尔.
量化氨基酸消耗和代谢物生产.

主要成果:

细菌以不同的方式消耗谷氨酸,谷氨酸和酸盐,产生不同的神经活性代谢物.
大肠杆菌和青菌产物产生的高水平的玛-氨基黄油酸 (GABA).
*Prevotella copri* 独特地产生了胺; *Enterococcus faecalis* 合成了胺和多巴胺; *Lactococcus lactis*, *Blautia producta* 和 *Escherichia coli* 产生了L-DOPA.
尽管消费了托,但没有检测到血清素或中间体.
几种物种产生短链脂肪酸 (SCFA).

结论:

开始性肠道微生物产生各种神经活性代谢产物和SCFA.
这些微生物代谢产物有助于宿主神经化学.
调节肠道微生物群具有影响人类健康的治疗潜力.

关键词:

生物科学生物科学微生物学的微生物.自然科学自然科学自然科学

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