Evidence map›Paper›PMID 34072107›Full record

ReviewJournal of clinical medicine2021

The Microbiota-Gut-Brain Axis and Alzheimer Disease. From Dysbiosis to Neurodegeneration: Focus on the Central Nervous System Glial Cells.

Maria Grazia Giovannini, Daniele Lana, Chiara Traini, Maria Giuliana Vannucchi

Abstract readReview
In one paragraph

Review in Journal of clinical medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed.

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  13. Virulence · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Maria Grazia GiovanniniDepartment of Health Sciences, Section of Clinical Pharmacology and Oncology, University of Florence, Viale G. Pieraccini, 6, 50139 Florence, Italy.ORCID 0000-0003-4563-0420
Daniele LanaDepartment of Health Sciences, Section of Clinical Pharmacology and Oncology, University of Florence, Viale G. Pieraccini, 6, 50139 Florence, Italy.ORCID 0000-0002-5193-0019
Chiara TrainiDepartment of Experimental and Clinical Medicine, Research Unit of Histology and Embryology, University of Florence, Viale G. Pieraccini, 6, 50139 Florence, Italy.
Maria Giuliana VannucchiDepartment of Experimental and Clinical Medicine, Research Unit of Histology and Embryology, University of Florence, Viale G. Pieraccini, 6, 50139 Florence, Italy.ORCID 0000-0001-6025-2400

Funding

FCRF 2020.1456Intesa san paolo B/2019/0236University of Florence RICATEN (MGV2020)
6 · The paper itself

Abstract

The microbiota-gut system can be thought of as a single unit that interacts with the brain via the "two-way" microbiota-gut-brain axis. Through this axis, a constant interplay mediated by the several products originating from the microbiota guarantees the physiological development and shaping of the gut and the brain. In the present review will be described the modalities through which the microbiota and gut control each other, and the main microbiota products conditioning both local and brain homeostasis. Much evidence has accumulated over the past decade in favor of a significant association between dysbiosis, neuroinflammation and neurodegeneration. Presently, the pathogenetic mechanisms triggered by molecules produced by the altered microbiota, also responsible for the onset and evolution of Alzheimer disease, will be described. Our attention will be focused on the role of astrocytes and microglia. Numerous studies have progressively demonstrated how these glial cells are important to ensure an adequate environment for neuronal activity in healthy conditions. Furthermore, it is becoming evident how both cell types can mediate the onset of neuroinflammation and lead to neurodegeneration when subjected to pathological stimuli. Based on this information, the role of the major microbiota products in shifting the activation profiles of astrocytes and microglia from a healthy to a diseased state will be discussed, focusing on Alzheimer disease pathogenesis.

Indexed as

amyloid-βclasmatodendrosiscytokinesendotoxinneurovascular unitshort chain fatty acidsToll-like receptor 4vagus nerve

Identifiers

PMID34072107
PMCPMC8199461

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.