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Open AccessJournal ArticleDOI

Impact of microbiota on central nervous system and neurological diseases: the gut-brain axis.

TLDR
The biological interplay between gut-brain axis is discussed, and how this communication may be dysregulated in neurological diseases is explored, and new insights in modification of gut microbiota composition are highlighted.
Abstract
Development of central nervous system (CNS) is regulated by both intrinsic and peripheral signals. Previous studies have suggested that environmental factors affect neurological activities under both physiological and pathological conditions. Although there is anatomical separation, emerging evidence has indicated the existence of bidirectional interaction between gut microbiota, i.e., (diverse microorganisms colonizing human intestine), and brain. The cross-talk between gut microbiota and brain may have crucial impact during basic neurogenerative processes, in neurodegenerative disorders and tumors of CNS. In this review, we discuss the biological interplay between gut-brain axis, and further explore how this communication may be dysregulated in neurological diseases. Further, we highlight new insights in modification of gut microbiota composition, which may emerge as a promising therapeutic approach to treat CNS disorders.

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Journal ArticleDOI

Toxicity of Microplastics and Nanoplastics in Mammalian Systems

TL;DR: The prevailing data suggest that micro- and nanoplastic accumulation in mammalian and human tissues would likely have negative, yet unclear long-term consequences, and there is a need for cellular and systemic toxicity due to micro-and nanoplastics to be better illuminated, and the underlying mechanisms defined by further work.
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The Gut-Brain Axis: How Microbiota and Host Inflammasome Influence Brain Physiology and Pathology.

TL;DR: The status of the knowledge and the open questions in the field focusing on the function of intestinal microbial metabolites or products on CNS cells during healthy and inflammatory conditions, such as multiple sclerosis, Alzheimer's and Parkinson’s diseases, and also neuropsychiatric disorders are discussed.
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Role of gut-brain axis, gut microbial composition, and probiotic intervention in Alzheimer's disease.

TL;DR: As aging together with poor diet and gut-derived inflammatory response due to dysbiosis contributes to the pathogenesis of AD, modification of gut microbial composition by uptake of probiotic-rich food can act as a preventive/therapeutic option for AD.
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Current and Future Trends on Diagnosis and Prognosis of Glioblastoma: From Molecular Biology to Proteomics.

TL;DR: Both benefits and pitfalls of molecular biology and proteomics analyses are discussed, including the different mass spectrometry-based analytical techniques, highlighting how these investigation strategies are powerful tools to study the biology of glioblastoma, as well as to develop advanced methods for the management of this pathology.
Journal ArticleDOI

Gut microbial molecules in behavioural and neurodegenerative conditions.

TL;DR: Bacterial metabolites with known or suspected neuromodulatory activity are described, mechanisms of signalling pathways from the gut microbiota to the brain are defined and direct effects that gut bacterial molecules are likely exerting on specific brain cells are discussed.
References
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Journal ArticleDOI

Gut microbiome influences efficacy of PD-1–based immunotherapy against epithelial tumors

Bertrand Routy, +76 more
- 05 Jan 2018 - 
TL;DR: It is found that primary resistance to ICIs can be attributed to abnormal gut microbiome composition, and Antibiotics inhibited the clinical benefit of ICIs in patients with advanced cancer.
Journal ArticleDOI

Role of the Microbiota in Immunity and Inflammation

TL;DR: In high-income countries, overuse of antibiotics, changes in diet, and elimination of constitutive partners, such as nematodes, may have selected for a microbiota that lack the resilience and diversity required to establish balanced immune responses.
Journal ArticleDOI

Metabolites produced by commensal bacteria promote peripheral regulatory T-cell generation

TL;DR: The results suggest that bacterial metabolites mediate communication between the commensal microbiota and the immune system, affecting the balance between pro- and anti-inflammatory mechanisms.
Journal ArticleDOI

Interleukin-23 rather than interleukin-12 is the critical cytokine for autoimmune inflammation of the brain

TL;DR: It is shown that the perceived central role for IL-12 in autoimmune inflammation, specifically in the brain, has been misinterpreted and that IL-23, and not IL- 12, is the critical factor in this response.
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