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Related Concept Videos

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...
The Retinoblastoma Gene01:20

The Retinoblastoma Gene

Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
The Retinoblastoma Gene01:20

The Retinoblastoma Gene

Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
Cancer Prevention02:59

Cancer Prevention

Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
Cancers Originate from Somatic Mutations in a Single Cell02:21

Cancers Originate from Somatic Mutations in a Single Cell

Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate indefinitely. Though originating from a single mutation event in one of the originator cells, cancer progresses when the mutant cell lines continue to gain more and more mutations, and finally, become malignant. For example, chronic myelogenous leukemia (CML) develops initially as a non-lethal increase in white blood cells, which progressively...
Cancers Originate from Somatic Mutations in a Single Cell02:21

Cancers Originate from Somatic Mutations in a Single Cell

Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate indefinitely. Though originating from a single mutation event in one of the originator cells, cancer progresses when the mutant cell lines continue to gain more and more mutations, and finally, become malignant. For example, chronic myelogenous leukemia (CML) develops initially as a non-lethal increase in white blood cells, which progressively...

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Related Experiment Video

Updated: Jun 23, 2026

Multi-Gene Single Nucleotide Polymorphism Detection in Gastric Cancer Based on Ion Semiconductor Sequencing Platform
06:21

Multi-Gene Single Nucleotide Polymorphism Detection in Gastric Cancer Based on Ion Semiconductor Sequencing Platform

Published on: May 10, 2024

Hereditary gastric cancer.

Carla Oliveira1, Raquel Seruca, Fátima Carneiro

  • 1Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), Porto, Portugal. carlaol@ipatimup.pt

Best Practice & Research. Clinical Gastroenterology
|May 6, 2009
PubMed
Summary

Hereditary Diffuse Gastric Cancer (HDGC) is rare, often linked to CDH1 mutations. Management includes surveillance and prophylactic surgery for carriers.

Area of Science:

  • Oncology
  • Genetics
  • Gastroenterology

Background:

  • Gastric cancer is a leading cause of cancer death globally.
  • Hereditary Diffuse Gastric Cancer (HDGC) accounts for a small fraction of gastric cancer cases.
  • CDH1 germline mutations are identified in approximately 40% of HDGC families.

Purpose of the Study:

  • To review the pathophysiology and clinicopathological features of HDGC.
  • To discuss genetic testing strategies for HDGC.
  • To outline management options for family members and carriers.

Main Methods:

  • Literature review of HDGC pathophysiology.
  • Analysis of clinicopathological features.
  • Discussion of genetic testing and management protocols.

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Genome-Wide Analysis of DNA Methylation in Gastrointestinal Cancer
07:50

Genome-Wide Analysis of DNA Methylation in Gastrointestinal Cancer

Published on: September 18, 2020

Related Experiment Videos

Last Updated: Jun 23, 2026

Multi-Gene Single Nucleotide Polymorphism Detection in Gastric Cancer Based on Ion Semiconductor Sequencing Platform
06:21

Multi-Gene Single Nucleotide Polymorphism Detection in Gastric Cancer Based on Ion Semiconductor Sequencing Platform

Published on: May 10, 2024

Genome-Wide Analysis of DNA Methylation in Gastrointestinal Cancer
07:50

Genome-Wide Analysis of DNA Methylation in Gastrointestinal Cancer

Published on: September 18, 2020

Main Results:

  • HDGC is a distinct hereditary cancer syndrome.
  • CDH1 mutations are a known cause, but other genetic factors remain unidentified.
  • Management involves surveillance and prophylactic gastrectomy for carriers.

Conclusions:

  • Understanding HDGC genetics is crucial for early detection and prevention.
  • Genetic counseling and testing are vital for at-risk families.
  • Prophylactic surgery offers a definitive management option for CDH1 carriers.