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2022-06-01

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cc-by (c) Rosell-Cardona, Cristina et al., 2022
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/193982

The Neuroprotective Effects of Spray-Dried Porcine Plasma Supplementation Involve the Microbiota-Gut-Brain Axis

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https://doi.org/10.3390/nu14112211

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Dietary supplementation with spray-dried porcine plasma (SDP) reduces the Alzheimer's disease (AD) hallmarks in SAMP8 mice. Since gut microbiota can play a critical role in the AD progression, we have studied if the neuroprotective effects of SDP involve the microbiota-gut-brain axis. Experiments were performed on two-month-old SAMP8 mice fed a standard diet and on six-month-old SAMP8 mice fed a control diet or an 8% SDP supplemented diet for four months. Senescence impaired short- and long-term memory, reduced cortical brain-derived neurotrophic factor (BDNF) abundance, increased interleukin (Il)-1β, Il-6, and Toll-like receptor 2 (Tlr2) expression, and reduced transforming growth factor β (Tgf-β) expression and IL-10 concentration (all p < 0.05) and these effects were mitigated by SDP (all p < 0.05). Aging also increased pro-inflammatory cytokines in serum and colon (all p < 0.05). SDP attenuated both colonic and systemic inflammation in aged mice (all p < 0.05). SDP induced the proliferation of health-promoting bacteria, such as Lactobacillus and Pediococcus, while reducing the abundance of inflammation-associated bacteria, such as Johnsonella and Erysipelothrix (both q < 0.1). In conclusion, SDP has mucosal and systemic anti-inflammatory effects as well as neuroprotective properties in senescent mice; these effects are well correlated with SDP promotion of the abundance of probiotic species, which indicates that the gut-brain axis could be involved in the peripheral effects of SDP supplementation. Keywords: Alzheimer's disease; aging; dietary supplementation; microbiota; spray-dried porcine plasma.

Matèries

Malaltia d'Alzheimer, Microbiota, Envelliment

Matèries (anglès)

Alzheimer's disease, Microbiota, Aging

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Articles publicats en revistes (Bioquímica i Fisiologia)
Articles publicats en revistes (Farmacologia, Toxicologia i Química Terapèutica)

Citació

ROSELL-CARDONA, Cristina, et al. The Neuroprotective Effects of Spray-Dried Porcine Plasma Supplementation Involve the Microbiota-Gut-Brain Axis. Nutrients. 2022. Vol. 14, num. 11. ISSN 2072-6643. [consulted: 11 of August of 2026]. Available at: https://hdl.handle.net/2445/193982

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