The enduring effects of early-life stress on the microbiota-gut-brain axis are buffered by dietary supplementation with milk fat globule membrane and a prebiotic blend.

Autor: O'Mahony SM; APC Microbiome Ireland, University College Cork, Cork, Ireland.; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland., McVey Neufeld KA; APC Microbiome Ireland, University College Cork, Cork, Ireland., Waworuntu RV; Mead Johnson Pediatric Nutrition Institute, Evansville, IN, USA., Pusceddu MM; APC Microbiome Ireland, University College Cork, Cork, Ireland., Manurung S; Mead Johnson, Nijmegen, The Netherlands., Murphy K; Teagasc Food Research Centre, Moorepark, Co., Cork, Ireland., Strain C; Teagasc Food Research Centre, Moorepark, Co., Cork, Ireland., Laguna MC; APC Microbiome Ireland, University College Cork, Cork, Ireland., Peterson VL; APC Microbiome Ireland, University College Cork, Cork, Ireland., Stanton C; APC Microbiome Ireland, University College Cork, Cork, Ireland.; Teagasc Food Research Centre, Moorepark, Co., Cork, Ireland., Berg BM; Mead Johnson Pediatric Nutrition Institute, Evansville, IN, USA., Dinan TG; APC Microbiome Ireland, University College Cork, Cork, Ireland.; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland., Cryan JF; APC Microbiome Ireland, University College Cork, Cork, Ireland.; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland.
Jazyk: angličtina
Zdroj: The European journal of neuroscience [Eur J Neurosci] 2020 Feb; Vol. 51 (4), pp. 1042-1058. Date of Electronic Publication: 2019 Aug 06.
DOI: 10.1111/ejn.14514
Abstrakt: Nutritional interventions targeting the microbiota-gut-brain axis are proposed to modulate stress-induced dysfunction of physiological processes and brain development. Maternal separation (MS) in rats induces long-term alterations to behaviour, pain responses, gut microbiome and brain neurochemistry. In this study, the effects of dietary interventions (milk fat globule membrane [MFGM] and a polydextrose/galacto-oligosaccharide prebiotic blend) were evaluated. Diets were provided from postnatal day 21 to both non-separated and MS offspring. Spatial memory, visceral sensitivity and stress reactivity were assessed in adulthood. Gene transcripts associated with cognition and stress and the caecal microbiota composition were analysed. MS-induced visceral hypersensitivity was ameliorated by MFGM and to greater extent with the combination of MFGM and prebiotic blend. Furthermore, spatial learning and memory were improved by prebiotics and MFGM alone and with the combination. The prebiotic blend and the combination of the prebiotics and MFGM appeared to facilitate return to baseline with regard to HPA axis response to the restraint stress, which can be beneficial in times where coping mechanisms to stressful events are required. Interestingly, the combination of MFGM and prebiotic reduced the long-term impact of MS on a marker of myelination in the prefrontal cortex. MS affected the microbiota at family level only, while MFGM, the prebiotic blend and the combination influenced abundance at family and genus level as well as influencing beta-diversity levels. In conclusion, intervention with MFGM and prebiotic blend significantly impacted the composition of the microbiota as well as ameliorating some of the long-term effects of early-life stress.
(© 2019 Federation of European Neuroscience Societies and John Wiley & Sons Ltd.)
Databáze: MEDLINE
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