Related Experiment Video

Updated: Jun 3, 2026

Surgical Models of Gastroesophageal Reflux with Mice
05:19

Surgical Models of Gastroesophageal Reflux with Mice

Published on: August 25, 2015

[Condition of the gastric mucosa in patients with duodeno-gastric reflux]

E S Lapchenko, T M Preobrazhenskaia, E V Galaeva

    Eksperimental'Naia I Klinicheskaia Gastroenterologiia = Experimental & Clinical Gastroenterology
    |March 25, 2011
    PubMed

    More Related Videos

    Effects of Desmodium caudatum on Gastrointestinal Hormones and Intestinal Flora in Rats with Gastritis03:48

    Effects of Desmodium caudatum on Gastrointestinal Hormones and Intestinal Flora in Rats with Gastritis

    Published on: March 1, 2024

    Gastric Point of Care Ultrasound in Adults: Image Acquisition and Interpretation05:50

    Gastric Point of Care Ultrasound in Adults: Image Acquisition and Interpretation

    Published on: September 22, 2023

    Related Concept Videos

    Gastritis-II: Pathophysiology01:17

    Gastritis-II: Pathophysiology

    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...
    Gastroesophageal Reflux Disease01:25

    Gastroesophageal Reflux Disease

    Gastroesophageal reflux disease (GERD) is the backward flow of stomach contents (acid, pepsin, or bile) into the esophagus, causing mucosal inflammation known as esophagitis. It results from failure of antireflux mechanisms, mainly the lower esophageal sphincter (LES), influenced by mechanical and physiological factors.Etiology and Risk FactorsGERD develops when LES function is weakened or when intra-abdominal pressure increases. Risk factors include aging, obesity, and sliding hiatal hernia,...
    Mucosal Barrier of the Stomach01:25

    Mucosal Barrier of the Stomach

    The gastric glands contain parietal cells that secrete hydrochloric acid (HCl) for digestion. The cells secrete HCl because it is highly corrosive and essential for breaking down food. To achieve this, they secrete hydrogen and chloride ions into the lumen of the gastric glands, which combine to form HCl.
    Within parietal cells, carbonic acid is first formed through the reaction of water and carbon dioxide. The dissociation of carbonic acid releases bicarbonate and hydrogen ions. The bicarbonate...
    Gastritis II: Pathophysiology01:26

    Gastritis II: Pathophysiology

    The pathophysiology of gastritis begins with the colonization of the stomach lining by Helicobacter pylori (H. pylori). This bacterium spreads mainly via the oral-oral route through saliva or shared utensils, and can also be transmitted in overcrowded or unhygienic environments through contaminated water, despite its brief survival outside the body.ColonizationOnce ingested, H. pylori enters the stomach and begins colonization by navigating through the mucus layer lining the stomach wall. It...
    Gastroesophageal Reflux Disease I: Meaning and Pathophysiology01:29

    Gastroesophageal Reflux Disease I: Meaning and Pathophysiology

    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...
    Peptic Ulcer Disease II: Pathophysiology01:28

    Peptic Ulcer Disease II: Pathophysiology

    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.