Gastroparesis: The Complex Interplay with Microbiota and the Role of Exogenous Infections in the Pathogenesis of the Disease

Author:

Mandarino Francesco Vito1ORCID,Sinagra Emanuele2,Barchi Alberto1ORCID,Verga Maria Chiara3,Brinch Daniele24,Raimondo Dario2,Danese Silvio1

Affiliation:

1. Division of Gastroenterology and Gastrointestinal Endoscopy, San Raffaele Hospital, Vita-Salute San Raffaele University, 20132 Milan, Italy

2. Gastroenterology & Endoscopy Unit, Fondazione Istituto G. Giglio, Contrada Pietra Pollastra Pisciotto, 90015 Cefalù, Italy

3. Gastroenterology and Digestive Endoscopy Unit, ASST Cremona, Viale Concordia 1, 26100 Cremona, Italy

4. Gastroenterology & Hepatology Section, PROMISE, University of Palermo, 90127 Palermo, Italy

Abstract

Gastroparesis (GP) is a disorder of gastric functions that is defined by objective delayed gastric emptying in the absence of mechanical obstruction. This disease is characterized by symptoms such as nausea, post-prandial fullness, and early satiety. GP significantly impacts patients’ quality of life and contributes to substantial healthcare expenses for families and society. However, the epidemiological burden of GP is difficult to evaluate, mainly due its significant overlap with functional dyspepsia (FD). GP and FD represent two similar diseases. The pathophysiology of both disorders involves abnormal gastric motility, visceral hypersensitivity, and mucosal inflammation. Moreover, both conditions share similar symptoms, such as epigastric pain, bloating, and early satiety. The latest evidence reveals that dysbiosis is directly or indirectly connected to gut–brain axis alterations, which are the basis of pathogenesis in both FD and GP. Furthermore, the role of microbiota in the development of gastroparesis was demonstrated by some clinical studies, which found that the use of probiotics is correlated with improvements in the gastric emptying time (GET). Infections (with viruses, bacteria, and protozoa) represent a proven etiology for GP but have not been sufficiently considered in current clinical practice. Previous viral infections can be found in about 20% of idiopathic GP cases. Moreover, delayed gastric emptying during systemic protozoal infections represents a huge concern for compromised patients, and few data exist on the topic. This comprehensive narrative review analyzes the relationship between microorganisms and GP. We explore, on the one hand, the correlation between gut microbiota dysbiosis and GP pathogenesis, including treatment implications, and, on the other hand, the association between exogenous infections and the etiology of the disease.

Publisher

MDPI AG

Subject

Virology,Microbiology (medical),Microbiology

Reference139 articles.

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