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Related Concept Videos

Gastritis-I: Introduction and Types01:27

Gastritis-I: Introduction and Types

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Gastritis, defined by the inflammation or irritation of the stomach lining or gastric mucosa, manifests in several distinct forms: acute, chronic, reactive, and a specific subtype known as autoimmune metaplastic atrophic gastritis.
Acute gastritis presents as a sudden inflammation triggered by various stressors to the stomach lining, such as exposure to corrosive agents, local irritants like aspirin and other NSAIDs, alcohol consumption, radiation therapy, physical trauma, severe burns, sepsis,...
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Gastritis-II: Pathophysiology01:17

Gastritis-II: Pathophysiology

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Gastritis is marked by disruption of the mucosal barrier that usually protects the stomach tissue from digestive juices and manifests in acute and chronic forms.
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
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Gastritis III: Clinical Manifestations and Management01:23

Gastritis III: Clinical Manifestations and Management

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The clinical manifestations of gastritis can vary depending on the cause and type of gastritis, but some common symptoms may include the following.
Clinical manifestations of acute gastritis
The patient with acute gastritis may have a rapid onset of symptoms, such as epigastric pain or discomfort, dyspepsia, anorexia, hiccups, or nausea and vomiting, which can last from a few hours to a few days. Erosive or hemorrhagic gastritis may cause bleeding, which may manifest as blood in vomit or as...
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Pathophysiology of Vomiting01:22

Pathophysiology of Vomiting

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Vomiting is a complex physiological response to expel harmful or irritating substances from the body. It's a defensive mechanism triggered by stimuli like poisons, microbial toxins, cytotoxic drugs, and mechanical abdominal distension. The process is centrally coordinated by the vomiting (or emetic) center located in the medulla of the brainstem. This area, rich in muscarinic M1, histamine H1, neurokinin 1 (NK1), and serotonin 5-HT3 receptors, coordinates the act of vomiting through...
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Gastrointestinal Motility Disorders01:20

Gastrointestinal Motility Disorders

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Gastrointestinal or GI motility disorders are characterized by irregular gastrointestinal tract movements, disrupting food transit from the mouth to the anus. They are caused by damage or dysfunction in gut muscles or nerves. These disorders can cause symptoms such as severe constipation, diarrhea, abdominal pain, and swallowing difficulties. Disorders can affect any segment of the GI tract and range widely in severity, from common conditions like GERD to life-threatening conditions like...
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Gastroesophageal Reflux Disease I: Meaning and Pathophysiology01:29

Gastroesophageal Reflux Disease I: Meaning and Pathophysiology

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Gastroesophageal Reflux Disease (GERD) involves the recurrent backflow of the stomach or duodenal contents into the esophagus, leading to troublesome symptoms and potential esophageal mucosal damage. Although GERD is often referred to as a disease, it is more accurately described as a syndrome, as it encompasses a range of symptoms and complications rather than a singular pathological entity, impacting a large number of individuals as the most prevalent upper gastrointestinal problem. Roughly...
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Updated: Dec 24, 2025

Adapting Gastrointestinal Organoids for Pathogen Infection and Single Cell Sequencing under Biosafety Level 3 BSL-3 Conditions
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[Viral gastroenteritis].

W Zingg1

  • 1Service de prévention et contrôle de l'infection, Hôpitaux universitaires de Genève, 24 rue Micheli-du-Crest, 1211 Genève 14, Schweiz.

Der Gastroenterologe : Zeitschrift Fur Gastroenterologie Und Hepatologie
|April 15, 2020
PubMed
Summary
This summary is machine-generated.

Acute gastroenteritis, caused by rotaviruses and noroviruses, affects all ages globally. This overview covers viral pathogenesis, epidemiology, and management strategies for effective control.

Keywords:
GastroenteritisNorovirusProbioticsRotavirus

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EPA Method 1615. Measurement of Enterovirus and Norovirus Occurrence in Water by Culture and RT-qPCR. II. Total Culturable Virus Assay
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Area of Science:

  • Virology
  • Infectious Diseases
  • Public Health

Context:

  • Acute gastroenteritis is a significant global health concern, prevalent in both developing nations and Europe.
  • Viral pathogens, particularly rotaviruses and noroviruses, are leading causes of gastroenteritis across all age groups.
  • Outbreaks frequently occur in institutional settings like hospitals, nurseries, and childcare centers, posing challenges for management.

Purpose:

  • To provide a comprehensive overview of the pathogenesis, epidemiology, and management of major viral agents causing acute gastroenteritis.
  • To synthesize current knowledge on rotavirus and norovirus infections, highlighting their distinct clinical presentations and public health impact.
  • To inform healthcare professionals and public health officials on effective strategies for handling and controlling viral gastroenteritis outbreaks.

Summary:

  • Rotaviruses are a primary cause of severe gastroenteritis in infants, while noroviruses affect all age groups with generally milder symptoms.
  • Effective rehydration is crucial for infants and neonates, though general viral gastroenteritis management is often straightforward.
  • Outbreak management requires diligent and time-consuming efforts, emphasizing the need for robust epidemiological surveillance and control measures.

Impact:

  • Enhanced understanding of viral gastroenteritis pathogenesis and epidemiology can lead to improved prevention and treatment strategies.
  • Effective outbreak management protocols can minimize disease transmission in vulnerable populations and healthcare settings.
  • This overview serves as a valuable resource for clinicians and researchers, aiding in the control of a widespread infectious disease.