The Role of Bifidobacterium bifidum novaBBF7, Bifidobacterium longum novaBLG2 and Lactobacillus paracasei TJB8 to Improve Mechanisms Linked to Neuronal Cells Protection against Oxidative Condition in a Gut-Brain Axis Model

• Published in: International journal of molecular sciences Vol. 24; no. 15; p. 12281
• Main Authors: Ferrari, Sara, Galla, Rebecca, Mulè, Simone, Rosso, Giorgia, Brovero, Arianna, Macchi, Valentina, Ruga, Sara, Uberti, Francesca
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 31.07.2023; MDPI
• Subjects: Alzheimer's disease; Anxiety; Brain research; Cardiovascular disease; Cognition & reasoning; Cognitive ability; cognitive decline; Communication; Coronary vessels; Digestive system; Growth factors; gut microbiome; gut-brain axis; Hyperlipidemia; Hypertension; Memory; Metabolism; Metabolites; Microbiota; Nervous system; oral supplementation; Oxidative stress; probiotic; Probiotics; Quadratic programming; Vein & artery diseases; probiotic; gut microbiome; cognitive decline; oral supplementation; gut-brain axis
• ISSN: 1422-0067; 1661-6596; 1422-0067
• DOI: 10.3390/ijms241512281

Despite the identification of several innovative targets for avoiding cognitive decline, there has yet to be a widely accepted approach that deals with minimising the deterioration of cognitive function. In this light, recent studies suggest that regulating the gut-brain axis with probiotics is a potential therapeutic strategy to support brain health. For this reason, in vitro models were used to examine the efficacy of different probiotic combinations to enhance intestinal homeostasis and positively affect the brain. Therefore, the new formulation has been evaluated for its capacity to modify intestinal barrier functions in a 3D in vitro model without any adverse effects and directly impact the mechanisms underlying cognitive function in a gut-brain axis model. According to our findings, novaBBF7 10 mg/mL, novaBLG2 5 mg/mL and TJB8 10 mg/mL may successfully modify the intestinal barrier and improve SCFA production. Successively, the probiotics studied caused no harm at the neuronal level, as demonstrated by iNOS, mitochondrial potential, and cell viability tests, confirming their safety features and enhancing antioxidant mechanisms and antineuroinflammation activity. Additionally, the damage caused by oxidative stress was also healed, and critical pathways that result in cognitive impairment were changed by synergetic action, supporting the hypothesis that brain ageing and neurodegeneration are slowed down. All these findings demonstrate the ability of probiotics to affect cognitive processes and their ability to sustain the mechanisms underlying cognitive function by acting on intestinal function.