Postbiotics as a Therapeutic Tool in Alzheimer's Disease: Insights into Molecular Pathways and Neuroprotective Effects

Ageing Research Reviews, Journal Year: 2025, Volume and Issue: unknown, P. 102685 - 102685

Published: Feb. 1, 2025

Language: Английский

---

The Neurobehavioral Impact of Zinc Chloride Exposure in Zebrafish: Evaluating Cognitive Deficits and Probiotic Modulation

Toxics, Journal Year: 2025, Volume and Issue: 13(3), P. 193 - 193

Published: March 8, 2025

Zinc contamination in aquatic environments has become a growing concern due to its potential bioaccumulate and induce neurotoxic effects organisms. As an essential trace element, zinc plays crucial role various physiological processes, but excessive exposure can disrupt the gut–brain axis, leading cognitive behavioral impairments. Recent studies have suggested that probiotics may offer protective against environmental neurotoxins by modulating gut microbiota associated neurological functions. The zebrafish (Danio rerio) emerged as valuable model organism for studying biological mechanisms underlying neurotoxicity therapeutic interventions. This study aimed assess of on impairments induced chloride (ZnCl2) zebrafish. Specifically, were exposed ZnCl2 at concentrations 0.5 mg/L 1.0 96 h, followed 7-day post-exposure period (Bifidobacterium longum, Bifidobacterium animalis lactis, Lactobacillus rhamnosus). these is already known neuromotor deficits resembling Alzheimer’s disease-like symptoms models, making it suitable evaluating neuroprotective probiotics. Behavioral assessments including sociability tests along with short- long-term memory evaluations conducted using EthoVision XT 16 software. Memory demonstrated impaired functions, while probiotic treatment did not significantly ameliorate deficits. In social behavior test, resulted marked decrease sociability, whereas significant changes. However, administration following intoxication exhibited anxiolytic effect These findings suggest exhibit partial neurobehavioral benefits chloride-induced toxicity, particularly mitigating anxiety-like behaviors rather than Further investigations are needed elucidate precise which interact axis context heavy metal neurotoxicity.

Language: Английский

---

Could a Mediterranean Diet Modulate Alzheimer’s Disease Progression? The Role of Gut Microbiota and Metabolite Signatures in Neurodegeneration

Foods, Journal Year: 2025, Volume and Issue: 14(9), P. 1559 - 1559

Published: April 29, 2025

Neurodegenerative disorders such as Alzheimer’s disease (AD), the most common form of dementia, represent a growing global health crisis, yet current treatment strategies remain primarily palliative. Recent studies have shown that neurodegeneration through complex interactions within gut–brain axis largely depends on gut microbiota and its metabolites. This review explores intricate molecular mechanisms linking dysbiosis to cognitive decline, emphasizing impact microbial metabolites, including short-chain fatty acids (SCFAs), bile acids, tryptophan neuroinflammation, blood–brain barrier (BBB) integrity, amyloid-β tau pathology. The paper highlights major microbiome signatures associated with disease, detailing their metabolic pathways inflammatory crosstalk. Dietary interventions promise in modulating composition, potentially mitigating neurodegenerative processes. critically examines influence dietary patterns, Mediterranean Western diets, microbiota-mediated neuroprotection. Bioactive compounds like prebiotics, omega-3 polyphenols exhibit neuroprotective effects by reducing neuroinflammation. Furthermore, it discusses emerging microbiome-based therapeutic strategies, probiotics, postbiotics, fecal transplantation (FMT), potential for slowing progression. Despite these advances, several knowledge gaps remain, interindividual variability responses need large-scale, longitudinal studies. study proposes an integrative, precision medicine approach, incorporating science into paradigms. Ultimately, cognizance at mechanistic level could unlock novel avenues, offering non-invasive, diet-based strategy managing improving health.

Language: Английский

---

Molecular mechanisms of zinc oxide nanoparticles neurotoxicity

Chemico-Biological Interactions, Journal Year: 2024, Volume and Issue: unknown, P. 111245 - 111245

Published: Sept. 1, 2024

Language: Английский

---