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Cited by 307

The DOI matches its Crossref record; 50 of the 50 references it cites were found in a registry or an index.

Role of Microbiota-Gut-Brain Axis in Regulating Dopaminergic Signaling

Open access
Hamamah, Sevag, Aghazarian, Armin, Nazaryan, Anthony, Hajnal, Andras, Covasa, Mihai·2022·Biomedicines

Abstract

Dopamine is a neurotransmitter that plays a critical role both peripherally and centrally in vital functions such as cognition, reward, satiety, voluntary motor movements, pleasure, and motivation. Optimal dopamine bioavailability is essential for normal brain functioning and protection against the development of neurological diseases. Emerging evidence shows that gut microbiota have significant roles in maintaining adequate concentrations of dopamine via intricate, bidirectional communication known as the microbiota-gut-brain axis. The vagus nerve, immune system, hypothalamus–pituitary–adrenal axis, and microbial metabolites serve as important mediators of the reciprocal microbiota-gut-brain signaling. Furthermore, gut microbiota contain intrinsic enzymatic activity that is highly involved in dopamine metabolism, facilitating dopamine synthesis as well as its metabolite breakdown. This review examines the relationship between key genera of gut microbiota such as Prevotella, Bacteroides, Lactobacillus, Bifidobacterium, Clostridium,Enterococcus, and Ruminococcus and their effects on dopamine. The effects of gut dysbiosis on dopamine bioavailability and the subsequent impact on dopamine-related pathological conditions such as Parkinson’s disease are also discussed. Understanding the role of gut microbiota in modulating dopamine activity and bioavailability both in the periphery and in the central nervous system can help identify new therapeutic targets as well as optimize available methods to prevent, delay, or restore dopaminergic deficits in neurologic and metabolic disorders.

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Crossref · 10.3390/biomedicines10020436

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Metadata

Authors
Hamamah, S., Aghazarian, A., Nazaryan, A., Hajnal, A., & Covasa, M.
Venue
Biomedicines
Publisher
MDPI AG
Published
2022-02-13
Volume
10
Issue
2
Pages
436
ISSN
2227-9059 (ISSN-L)
OpenAlex
W4213012461
Cited by
307
References
50
FWCI
16.37
Type
journal article
Language
en
Open access
gold

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