The Relationship between Gut Microbiome and Cognition in Older Australians

Nutrients

Mrudhula Komanduri¹  Karen Savage¹  Con Stough¹  Shakuntla Gondalia¹  Grace McPhee¹  Ana Lea¹  Karen Nolidin¹  Saurenne Deleuil¹ 

[1] Centre for Human Psychopharmacology, Swinburne University of Technology, Hawthorn, VIC 3122, Australia;

关键词: gut microbiome;    cognition;    gut–brain axis;    ageing;   

DOI  :  10.3390/nu14010064

来源: DOAJ

【 摘 要 】

Ageing is associated with changes in biological processes, including reductions in cognitive functions and gut microbiome diversity. However, not much is known about the relationship between cognition and the microbiome with increasing age. Therefore, we examined the relationship between the gut microbiome and cognition in 69 healthy participants aged 60–75 years. The gut microbiome was analysed with the 16S rRNA sequencing method. The cognitive assessment included the Cognitive Drug Research computerised assessment battery, which produced five cognitive factors corresponding to ‘Quality of Episodic Secondary Memory’, ‘Quality of Working Memory’, ‘Continuity of Attention, ‘Speed of Memory’ and ‘Power of Concentration’. Multiple linear regression showed that the bacterial family Carnobacteriaceae explained 9% of the variance in predicting Quality of Episodic Secondary Memory. Alcaligenaceae and Clostridiaceae explained 15% of the variance in predicting Quality of Working Memory; Bacteroidaceae, Barnesiellaceae, Rikenellaceae and Gemellaceae explained 11% of the variance in Power of Concentration. The present study provides specific evidence of a relationship between specific families of bacteria and different domains of cognition.

【 授权许可】

Unknown