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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...
996
Peptic Ulcer Disease II: Pathophysiology01:28

Peptic Ulcer Disease II: Pathophysiology

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Peptic Ulcer Disease (PUD) is characterized by the development of ulcers in the stomach or duodenal mucosa. Its pathophysiology is complex, involving a balance between damaging and protective elements.
Damaging agents such as Helicobacter pylori, gastric acid, pepsin, and nonsteroidal anti-inflammatory drugs (NSAIDs) can weaken the mucosal defense, allowing hydrogen ions to infiltrate back and harm epithelial cells.
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Pathophysiology of Peptic Ulcer Disease: Injurious Factors01:22

Pathophysiology of Peptic Ulcer Disease: Injurious Factors

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Peptic ulcers are sores on the stomach's inner lining and the upper small intestine, which are the result of disruptions in the mucosal layer that houses parietal cells which produce gastric acid, and chief cells which secrete pepsinogen.
In the antrum region, G cells secrete the gastrin hormone that binds to gastrin-cholecystokinin-B (CCK2) receptors on parietal and enterochromaffin-like (ECL) cells in the fundic glands. Simultaneously, the vagus nerve releases acetylcholine, which binds...
963
Peptic Ulcer Disease IV: Management01:26

Peptic Ulcer Disease IV: Management

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Medical treatment strategies for peptic ulcers encompass various methods. The primary goal of treatment is to diminish gastric acidity and strengthen mucosal defense mechanisms.
The therapeutic approach involves ensuring adequate rest, implementing drug therapy, promoting smoking cessation, making dietary modifications, and emphasizing long-term follow-up care.
Pharmacological management
The prevailing therapy for peptic ulcers involves a combination of managing the patient's current...
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Related Experiment Video

Updated: Dec 18, 2025

Mouse- and Human-derived Primary Gastric Epithelial Monolayer Culture for the Study of Regeneration
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Current Perspectives in Atrophic Gastritis.

Edith Lahner1, Laura Conti1, Bruno Annibale1

  • 1Department of Medical-Surgical Sciences and Translational Medicine, Sant'Andrea Hospital, Sapienza University of Rome, Via di Grottarossa, 1035 -, 00189, Rome, Italy.

Current Gastroenterology Reports
|June 17, 2020
PubMed
Summary
This summary is machine-generated.

Atrophic gastritis, a precursor to gastric cancer, is linked to H. pylori infection or autoimmunity. Early detection via targeted biopsies and understanding its impact on gastric microbiota are crucial for patient outcomes.

Keywords:
Atrophic gastritisChromoendoscopyGastric cancerGastric microbiotaHelicobacter pyloriIntestinal metaplasia

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Area of Science:

  • Gastroenterology
  • Oncology
  • Microbiology

Background:

  • Atrophic gastritis is characterized by gastric atrophy, often stemming from Helicobacter pylori infection or autoimmunity.
  • It presents subtly, impacts general health, and is a significant risk factor for gastric cancer.

Purpose of the Study:

  • To provide an updated review of current knowledge and advancements in atrophic gastritis.
  • To highlight the clinical presentation, diagnosis, and cancer risk stratification of atrophic gastritis.

Main Methods:

  • Review of current literature on atrophic gastritis.
  • Discussion of diagnostic tools including gastric biopsies (Sydney system, OLGA/OLGIM) and electronic chromoendoscopy.
  • Exploration of the role of gastric microbiota in atrophic gastritis and gastric cancer development.

Main Results:

  • Atrophic gastritis commonly affects adults with symptoms like dyspepsia, anemia, or autoimmune diseases, and is associated with long-term PPI use and family history of gastric cancer.
  • Gastric biopsies are the gold standard for diagnosis and cancer risk assessment; electronic chromoendoscopy enables targeted biopsies.
  • Hypochlorhydria in atrophic gastritis alters gastric microbiota, suggesting a role for non-H. pylori microbes in gastric carcinogenesis.

Conclusions:

  • Physicians must recognize the diverse clinical manifestations of atrophic gastritis.
  • Endoscopic monitoring with targeted biopsies is recommended for atrophic gastritis management.
  • Distinct gastric microbial profiles in autoimmune versus H. pylori-induced atrophic gastritis may influence gastric tumorigenesis differently.