Symptomatology and microbiology of the gastrointestinal tract in post‐COVID conditions

Abstract Post‐COVID conditions, also known as post‐acute sequelae of SARS‐CoV‐2 (PASC), refer to the persistence of symptoms in COVID‐19 long‐haulers. Various manifestations of post‐COVID conditions are general symptoms and/or manifestations of damage in multiple organs. Besides, SARS‐CoV‐2 can invo...

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Main Authors: Mohamad Norouzi Masir, Milad Shirvaliloo
Format: Article
Language:English
Published: Wiley 2022-10-01
Series:JGH Open
Subjects:
Online Access:https://doi.org/10.1002/jgh3.12811
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author Mohamad Norouzi Masir
Milad Shirvaliloo
author_facet Mohamad Norouzi Masir
Milad Shirvaliloo
author_sort Mohamad Norouzi Masir
collection DOAJ
description Abstract Post‐COVID conditions, also known as post‐acute sequelae of SARS‐CoV‐2 (PASC), refer to the persistence of symptoms in COVID‐19 long‐haulers. Various manifestations of post‐COVID conditions are general symptoms and/or manifestations of damage in multiple organs. Besides, SARS‐CoV‐2 can involve the gastrointestinal tract, resulting in sequelae such as diarrhea, abdominal pain, nausea, anorexia, vomiting, constipation, abdominal distension, acid reflux, and/or gastrointestinal bleeding. Previous investigations point to SARS‐CoV‐2 entry into enterocytes enhances by the angiotensin‐converting enzyme 2 (ACE2) receptors. Interestingly, ACE2 receptors are abundantly expressed in the gut, implying infection with SARS‐CoV‐2 might occur through this route as well as in the respiratory tract. According to mounting evidence, SARS‐CoV‐2 RNA has been identified in fecal specimens of patients with COVID‐19 during and beyond the acute phase. In addition, studies have shown gut microbiome composition is altered in patients with PASC, hence, another putative mechanism linked to gastrointestinal symptoms is gut dysbiosis. The presence of the gut‐lung axis in COVID‐19 might have major implications for disease pathogenesis and treatment. This review discussed the prevalence of gastrointestinal symptoms and pathophysiology underlying possible infection of the gut in patients with PASC. Also, SARS‐COV‐2 induced NLRP3 inflammasome‐dependent inflammatory pathways are briefly addressed.
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spelling doaj.art-5983a54940f243a58d43b65995958c0a2022-12-22T02:23:53ZengWileyJGH Open2397-90702022-10-0161066767610.1002/jgh3.12811Symptomatology and microbiology of the gastrointestinal tract in post‐COVID conditionsMohamad Norouzi Masir0Milad Shirvaliloo1Student Research Committee School of Medicine, Shahrekord University of Medical Sciences Shahrekord IranInfectious & Tropical Diseases Research Center Tabriz University of Medical Sciences Tabriz IranAbstract Post‐COVID conditions, also known as post‐acute sequelae of SARS‐CoV‐2 (PASC), refer to the persistence of symptoms in COVID‐19 long‐haulers. Various manifestations of post‐COVID conditions are general symptoms and/or manifestations of damage in multiple organs. Besides, SARS‐CoV‐2 can involve the gastrointestinal tract, resulting in sequelae such as diarrhea, abdominal pain, nausea, anorexia, vomiting, constipation, abdominal distension, acid reflux, and/or gastrointestinal bleeding. Previous investigations point to SARS‐CoV‐2 entry into enterocytes enhances by the angiotensin‐converting enzyme 2 (ACE2) receptors. Interestingly, ACE2 receptors are abundantly expressed in the gut, implying infection with SARS‐CoV‐2 might occur through this route as well as in the respiratory tract. According to mounting evidence, SARS‐CoV‐2 RNA has been identified in fecal specimens of patients with COVID‐19 during and beyond the acute phase. In addition, studies have shown gut microbiome composition is altered in patients with PASC, hence, another putative mechanism linked to gastrointestinal symptoms is gut dysbiosis. The presence of the gut‐lung axis in COVID‐19 might have major implications for disease pathogenesis and treatment. This review discussed the prevalence of gastrointestinal symptoms and pathophysiology underlying possible infection of the gut in patients with PASC. Also, SARS‐COV‐2 induced NLRP3 inflammasome‐dependent inflammatory pathways are briefly addressed.https://doi.org/10.1002/jgh3.12811COVID‐19gastrointestinal sequelaegut dysbiosisgut microbiotagut‐lung axislong COVID
spellingShingle Mohamad Norouzi Masir
Milad Shirvaliloo
Symptomatology and microbiology of the gastrointestinal tract in post‐COVID conditions
JGH Open
COVID‐19
gastrointestinal sequelae
gut dysbiosis
gut microbiota
gut‐lung axis
long COVID
title Symptomatology and microbiology of the gastrointestinal tract in post‐COVID conditions
title_full Symptomatology and microbiology of the gastrointestinal tract in post‐COVID conditions
title_fullStr Symptomatology and microbiology of the gastrointestinal tract in post‐COVID conditions
title_full_unstemmed Symptomatology and microbiology of the gastrointestinal tract in post‐COVID conditions
title_short Symptomatology and microbiology of the gastrointestinal tract in post‐COVID conditions
title_sort symptomatology and microbiology of the gastrointestinal tract in post covid conditions
topic COVID‐19
gastrointestinal sequelae
gut dysbiosis
gut microbiota
gut‐lung axis
long COVID
url https://doi.org/10.1002/jgh3.12811
work_keys_str_mv AT mohamadnorouzimasir symptomatologyandmicrobiologyofthegastrointestinaltractinpostcovidconditions
AT miladshirvaliloo symptomatologyandmicrobiologyofthegastrointestinaltractinpostcovidconditions