ENS

Linking circadian rhythms to microbiome-gut-brain axis in aging-associated neurodegenerative diseases

ENS, Gut Dysbiosis, Gut Microbiota /

Emerging evidence suggests that both disruption of circadian rhythms and gut dysbiosis are closely related to aging-associated neurodegenerative diseases. Over the last decade, the microbiota-gut-brain axis has been an emerging field and revolutionized studies in pathology, diagnosis, and treatment of neurological disorders. Crosstalk between the brain and gut microbiota can be accomplished via the endocrine, […]

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Recent advances in understanding the roles of the enteric nervous system

ENS, Gut Microbiota, Gut-Brain axis, Parkinson's Disease /

The enteric nervous system (ENS), the intrinsic innervation of the gastrointestinal (GI) tract, is a vast, mesh-like network of neurons and glia embedded within the bowel wall. Through its complex circuitry and neuronal diversity, the ENS is capable of functioning autonomously but is modulated by inputs from the central nervous system (CNS). The communication between

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Gastrointestinal Microbiome and Neurologic Injury

Butyrate, Constipation, ENS, Fecal Transplants (FMT), Gut Dysbiosis, Gut Microbiota, Probiotics, Prebiotics and Symbiotics, Short Chain Fatty Acids /

: Communication between the enteric nervous system (ENS) of the gastrointestinal (GI)tract and the central nervous system (CNS) is vital for maintaining systemic homeostasis. Intrinsicand extrinsic neurological inputs of the gut regulate blood flow, peristalsis, hormone release, andimmunological function. The health of the gut microbiome plays a vital role in regulating the overallfunction and well-being

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Clinical and imaging evidence of brain-first and body-first Parkinson’s disease

A-Synuclein, Autonmic nervous system, Constipation, ENS, Gut Dysbiosis, iRBD, Non-Motor Symptoms, Orthostatic Hypotension, Parkinson's Disease, Pre-PD /

Braak’s hypothesis has been extremely influential over the last two decades. However, neuropathological and clinical evidence suggest that the model does not conform to all patients with Parkinson’s disease (PD). To resolve this controversy, a new model was recently proposed; in brain-first PD, the initial α-synuclein pathology arise inside the central nervous system, likely rostral to

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The link between the gut microbiota and Parkinson’s Disease: A systematic mechanism review with focus on α-synuclein transport

A-Synuclein, ENS, Gut Dysbiosis, Gut Microbiota, Parkinson's Disease, Pre-PD /

Research has suggested a link between the gut microbiota and Parkinson’s Disease (PD), and an early involvement of gastrointestinal dysfunction has been reported in patients. A mechanism review was performed to investigate whether the neurodegenerative cascade begins in the gut; mediated by gut dysbiosis and retrograde transport of α-synuclein. This review provides a summary of

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Digesting recent findings: gut alpha-synuclein, microbiome changes in Parkinson’s disease

A-Synuclein, Constipation, ENS, Gut Dysbiosis, Gut-Brain axis /

Two hallmarks of Parkinson’s disease (PD) are the widespread deposition of misfolded alpha-synuclein (αSyn) protein in the nervous system and loss of substantia nigra dopamine neurons. Recent research has suggested that αSyn aggregates in the enteric nervous system (ENS) lead to prodromal gastrointestinal (GI) symptoms such as constipation in PD, then propagating to the brain stem and eventually triggering neurodegeneration and

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The Baseline Structure of the Enteric Nervous System and Its Role in Parkinson’s Disease

ENS, Parkinson's Disease /

The present manuscript is dedicated to identifying various neuronal cytotypes belonging to ENS in baseline conditions. The second part ofthe study provides evidence on how these very same neurons are altered during Parkinson’s disease.In fact, although being defined as a movement disorder, Parkinson’s disease features a number ofdegenerative alterations, which often anticipate motor symptoms. Among

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Interactions between the microbiota and enteric nervous system during gut-brain disorders

ENS, Gut Microbiota /

The ENS, which is known as the “second brain”, could be under the direct or indirect influence of the gut microbiota and its released factors (short-chain fatty acids, neurotransmitters, gaseous factors, etc.). Thus, in addition to their actions on tissue (adipose tissue, liver, brain, etc.), microbes can have an impact on local ENS activity. This potential

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The Baseline Structure of the Enteric Nervous System and Its Role in Parkinson’s Disease

ENS, Gut Dysbiosis /

The second part ofthe study provides evidence on how these very same neurons are altered during Parkinson’s disease.In fact, although being defined as a movement disorder, Parkinson’s disease features a number ofdegenerative alterations, which often anticipate motor symptoms. Among these, the GI tract is ofteninvolved, and for this reason, it is important to assess its

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Alpha-synuclein induces progressive changes in brain microstructure and sensory-evoked brain function that precedes locomotor decline.

A-Synuclein, ENS /

At 12 weeks post-injection, a separate 43 and distinct pattern of structural and sensory-evoked functional brain activity changes was 44 observed that are co-localized with previously reported regions of α-syn pathology and immune 45 activation. Microstructural changes in the pons at 12 weeks post-injection were found to predict 46 survival time and preceded measurable locomotor

Alpha-synuclein induces progressive changes in brain microstructure and sensory-evoked brain function that precedes locomotor decline. Read More »