Is Gut Involvement a Cause or Effect of COVID-19?
Journal name: The Malaysian Journal of Medical Sciences
Original article title: Is Gut Involvement a Cause or Effect of COVID-19?
The Malaysian Journal of Medical Sciences (MJMS) is a peer-reviewed, open-access journal published online at least six times a year. It covers all aspects of medical sciences and prioritizes high-quality research.
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Original source:
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Khairil Khuzaini ZULKIFLI, Phei Oon TAN, Nazri MUSTAFFA, Yoen Young CHUAH, Raman MUTHUKARUPPAN, Zheng Feei MA, Yeong Yeh LEE
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The Malaysian Journal of Medical Sciences:
(A peer-reviewed, open-access journal)
Full text available for: Is Gut Involvement a Cause or Effect of COVID-19?
Year: 2021 | Doi: 10.21315/mjms2021.28.6.14
Copyright (license): CC BY 4.0
Summary of article contents:
Introduction
The study explores the gastrointestinal (GI) implications of COVID-19, which may resemble post-infectious functional gastrointestinal disorder (PI-FGID). The presence of SARS-CoV-2 in the gastrointestinal tract suggests that the virus can lead to digestive symptoms, such as diarrhea and abdominal pain, particularly in older adults with pre-existing gastric conditions. As the pandemic progressed, the World Health Organization (WHO) declared COVID-19 a global health crisis, with broad impacts across various nations, where some experienced higher infection rates and more severe illness, particularly among older populations.
Gut Involvement in COVID-19: SARS-CoV-2 and ACE2 Receptor
One significant finding discussed in the article is the role of the angiotensin-converting enzyme 2 (ACE2) receptor in the infection process. SARS-CoV-2 utilizes ACE2 to enter intestinal cells, which may disrupt gut microbiota homeostasis and contribute to inflammation. This dysregulation could explain the digestive symptoms associated with COVID-19 and the potential for individuals to develop PI-FGID following infection. Furthermore, the persistence of viral RNA in stool samples raises concerns regarding fecal transmission, suggesting the need for careful management during lower GI procedures and highlighting the importance of understanding the gastrointestinal effects of the virus.
Conclusion
Understanding the gut's involvement in COVID-19 is crucial, as gastrointestinal symptoms are frequently reported and can significantly impact patient outcomes. The presence of SARS-CoV-2 in the GI tract, aided by factors such as ACE2 receptor dysregulation and gastric hypochlorhydria, poses many questions regarding its clinical implications. Moving forward, further research is warranted to clarify whether gut involvement is a consequence of SARS-CoV-2 infection or a contributing factor to the severity of COVID-19 symptoms, particularly in vulnerable populations like the elderly.
FAQ section (important questions/answers):
What are the gastrointestinal symptoms associated with COVID-19?
Gastrointestinal symptoms in COVID-19 include diarrhea, nausea, vomiting, and abdominal pain. These symptoms may precede respiratory symptoms and can occur as the sole manifestation of the illness. Studies indicate that around 16% of COVID-19 patients reported gastrointestinal symptoms exclusively.
How does SARS-CoV-2 reach the gastrointestinal tract?
SARS-CoV-2 can reach the gastrointestinal tract via saliva, anal/rectal swabs, and stool specimens. Factors such as gastric hypochlorhydria, often seen in the elderly, can facilitate viral transit, allowing it to bypass stomach acidity and infect the gut.
What role does ACE2 play in COVID-19's gastrointestinal effects?
ACE2 serves as an entry receptor for SARS-CoV-2 in the gut. Once the virus binds to ACE2, it disrupts gut microbiota homeostasis and alters intestinal permeability, potentially leading to post-infectious functional gastrointestinal disorders (PI-FGID).
Is there a correlation between COVID-19 and liver injury?
Liver injury in COVID-19 patients appears to be a collateral effect. While COVID-19 can lead to elevated liver enzymes, the damage seems to result from immune response rather than direct viral invasion of liver cells.
Glossary definitions and references:
Scientific and Ayurvedic Glossary list for “Is Gut Involvement a Cause or Effect of COVID-19?”. This list explains important keywords that occur in this article and links it to the glossary for a better understanding of that concept in the context of Ayurveda and other topics.
1) Disease:
Disease refers to a pathological condition of a bodily part, an organism, or system resulting from various causes, including infection, genetic defects, or environmental factors. In the context of COVID-19, it signifies the health crisis caused by the SARS-CoV-2 virus, leading to a range of symptoms affecting multiple organ systems.
2) Viru:
The term likely refers to 'virus,' which is a microscopic infectious agent that can replicate only inside living host cells. In the context of the discussed article, SARS-CoV-2 serves as the virus responsible for causing COVID-19 and its associated gastrointestinal complications, leading to extensive studies and medical research.
3) Study (Studying):
A study is a systematic investigation of a particular topic to discover or revise facts, theories, and applications. In the context of COVID-19 and associated gastrointestinal disorders, numerous studies have been conducted to understand the effects of the virus on digestive health and the potential implications of symptoms.
4) Cina:
China is the country where the first known cases of COVID-19 were identified in December 2019. Its geographical significance has made it the focal point of early research and epidemiological tracking of the SARS-CoV-2 outbreak, influencing global responses to the pandemic and implications for disease management.
5) Transmission:
Transmission refers to the process by which infectious diseases spread from one individual to another. In the context of COVID-19, understanding the transmission dynamics of SARS-CoV-2 is crucial for public health measures, including interventions to reduce spread, such as social distancing, mask-wearing, and hygiene practices.
6) Inflammation:
Inflammation is the body's response to injury or infection, characterized by redness, swelling, heat, and pain. In the context of COVID-19, inflammation plays a critical role in the disease's severity, affecting various organs, including the gastrointestinal tract, liver, and respiratory system, leading to potential complications.
7) Post:
Post refers to conditions or symptoms that arise after an initial event or infection. The term is significant in discussions about post-infectious functional gastrointestinal disorders (PI-FGID), highlighting how survivors of COVID-19 may experience lingering gastrointestinal symptoms long after clearing the virus.
8) Chan:
Chan could refer to a surname common in Asian cultures. In the context of COVID-19 studies, individuals with this surname might be researchers, healthcare providers, or patients involved in relevant studies or case reports impacting understanding of the virus and its effects on public health.
9) Kumar:
Kumar is a common South Asian surname, frequently appearing in academic publications and clinical studies. In the discussion of COVID-19, it's likely associated with researchers or healthcare practitioners who contribute to understanding the epidemiology, clinical manifestations, and implications of SARS-CoV-2 infections.
10) Drug:
A drug is a substance used in the diagnosis, treatment, or prevention of disease. The search for effective drugs to combat COVID-19 has intensified research efforts, with several existing medications being reevaluated for their effectiveness against SARS-CoV-2 and its associated symptoms, including gastrointestinal issues.
11) Life:
In the context of health and disease, life refers to the condition of living organisms. The COVID-19 pandemic has significantly impacted life across the globe, affecting physical, emotional, and social well-being due to health concerns, economic challenges, and lifestyle changes resulting from the public health crisis.
12) Epidemic:
An epidemic is the widespread occurrence of an infectious disease in a community at a particular time. The COVID-19 pandemic, deemed an epidemic initially, has highlighted how quickly diseases can spread globally, necessitating prompt public health interventions and underscoring the importance of early detection and prevention strategies.
13) Death:
Death refers to the cessation of all biological functions that sustain a living organism. In the context of COVID-19, fatalities from the disease have prompted extensive assessment of its severity, health system response, and long-term implications on healthcare policies and public health strategies to minimize mortality rates.
14) Pain:
Pain is an unpleasant sensory and emotional experience associated with actual or potential tissue damage. It may arise in COVID-19 patients suffering from gastrointestinal symptoms, leading healthcare providers to explore the relationship between COVID-19 infection, its manifestations, and appropriate pain management strategies.
15) Observation:
Observation involves the active acquisition of information through the senses, crucial in clinical settings for diagnosing and understanding disease progression. In the context of COVID-19, observations pertaining to symptomatology, virus behavior, and treatment responses are pivotal for advancing knowledge and improving patient care.
16) Mutation:
Mutation refers to changes in nucleotide sequences that can affect genetic information. The study of mutations in SARS-CoV-2 is essential to understanding the virus's evolution, transmissibility, and potential effectiveness of vaccines, impacting public health responses and global strategies in managing the pandemic.
17) Allergy:
Allergy is the body's immune response to a substance that it deems harmful, which may result in various symptoms. Understanding allergies in the context of COVID-19 is crucial as some symptoms like respiratory distress may overlap, complicating diagnoses and treatment strategies for affected individuals.
18) Sharman (Sarma, Sharma, Sarman):
Sharma is a common Indian surname associated with various professionals, including researchers and healthcare workers. In the realm of COVID-19 discussions, individuals with this surname could be identified among those who have contributed to various studies, adding significant insights into the pandemic's effects in their communities.
19) Indian:
Indian refers to a national identity, with a diverse population characterized by a wide array of languages, cultures, and health challenges. The discussion around COVID-19 includes examining how this pandemic affects public health systems and morbidity in India, influencing research, policy-making, and healthcare delivery.
20) Papa:
Papa can refer to a surname and possibly a contributor to studies on COVID-19. While the specific relevance in this context may vary, individuals with this name could be key researchers, helping investigate the disease's impact on digestive health or other clinical implications.
21) Chau:
Chau could signify a surname, prevalent in Asia. In the context of public health research on COVID-19, notable figures with this name may have conducted studies that inform our understanding of the virus's transmission, clinical manifestations, and potential therapeutic interventions.
22) Ter:
Ther might be a shorthand for 'therapy' or 'therapeutic,' which refers to the treatment of diseases or disorders. In the context of COVID-19, research focuses on developing effective therapies to combat the virus, alleviate associated symptoms, and improve patient outcomes through innovative medical advancements.
23) Mental health:
Mental health describes cognitive, emotional, and social well-being, affecting how individuals think, feel, and act. The COVID-19 pandemic has brought significant mental health challenges, as fear, isolation, and uncertainties related to illness and mortality can heighten anxiety and stress among affected populations.
24) Vomiting:
Vomiting is the involuntary, forceful expulsion of stomach contents through the mouth. It is recognized as one of the gastrointestinal symptoms associated with COVID-19, drawing attention to the need for comprehensive symptom management strategies and further research to understand its underlying mechanisms in affected individuals.
25) Activity:
Activity refers to the state of being active, which can relate to physical, mental, or social engagement. The COVID-19 pandemic has significantly impacted daily activities, with lockdowns and social distancing measures affecting people's health, routine, and overall quality of life during the crisis.
26) Surface:
Surface refers to the outer layer or boundary of an object. In the context of infectious diseases like COVID-19, surface contamination is of significant concern, as the virus can survive on surfaces, contributing to transmission and necessitating rigorous sanitization practices to curb spread.
27) Nausea:
Nausea is the sensation of unease and discomfort that often precedes vomiting. It's a common symptom reported by individuals infected with COVID-19, highlighting the broad range of gastrointestinal manifestations of the virus, necessitating awareness for early identification and effective management of patients.
28) Reason:
Reason refers to the explanation or justification for something happening. In discussions surrounding COVID-19, understanding the reasons behind the varied clinical manifestations and potential complications is crucial for developing targeted treatments and public health strategies to mitigate the impact of the virus.
29) Table:
Table can refer to a structured arrangement of data or information. In the context of medical research, tables are often utilized to present findings, summarizing critical data regarding COVID-19 symptoms, treatment efficacy, or population characteristics to facilitate analysis and communication of results.
30) Shan (San):
Shan could relate to a surname or denote a geographic context. In relevant studies on COVID-19, individuals with this name may hold important roles in research or clinical settings, contributing valuable insights into the disease, its effects, and potential management strategies for healthcare systems.
31) Bile:
Bile is a digestive fluid produced by the liver that aids in the digestion and absorption of fats. In discussions regarding liver involvement and damage during COVID-19, the role of bile and the liver's health become significant as the infection may affect gastrointestinal function.
32) Genu:
Genu refers to a knee or bend, often used in anatomical terms. While it may not directly relate to COVID-19, understanding bodily functions and structures is important in the broader context of how diseases can impact functionality, potentially leading to physiological issues in patients.
33) Hand:
Hand commonly refers to the appendage at the end of the arm, crucial for many human activities. During the COVID-19 pandemic, hand hygiene has become a primary focus for infection control, emphasizing the need for vigilant washing and sanitizing practices to prevent virus transmission.
34) Cai (Caí):
Chai can refer to a type of tea popular across many cultures, particularly in Asia. While not directly linked to COVID-19, the cultural practices surrounding food and drink, such as tea consumption, can influence community health behaviors and social interactions during the pandemic.
35) Male:
Male refers to the sex of organisms that typically produce sperm. In various COVID-19 studies, gender differences are examined as males have been reported to have more severe infections and outcomes compared to females, necessitating investigations into gender-specific health strategies and responses.
Other Health Sciences Concepts:
Discover the significance of concepts within the article: ‘Is Gut Involvement a Cause or Effect of COVID-19?’. Further sources in the context of Health Sciences might help you critically compare this page with similair documents:
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