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PYLORUS
| Pronunciation (US): |  | (GB): | |
Irregular inflected form: pylori
I. (noun)
Sense 1
Meaning:
A small circular opening between the stomach and the duodenum
Classified under:
Hypernyms ("pylorus" is a kind of...):
opening; orifice; porta (an aperture or hole that opens into a bodily cavity)
Meronyms (parts of "pylorus"):
musculus sphincter pylori; pyloric sphincter; pyloric valve (the sphincter muscle of the pylorus that separates the stomach from the duodenum)
Derivation:
pyloric (relating to or near the pylorus)
Context examples:
H. pylori infection is usually acquired from contaminated food and water and through person to person spread.
(Helicobacter pylori, NCI Thesaurus)
Helicobacter pylori (H. pylori) is a type of bacteria that causes infection in the stomach.
(Helicobacter Pylori Infections, NIH: National Institute of Diabetes and Digestive and Kidney Diseases)
People with Helicobacter pylori infections may be more likely to develop cancer in the stomach, including MALT (mucosa-associated lymphoid tissue) lymphoma.
(Helicobacter pylori, NCI Dictionary)
It most commonly develops after a long period of atrophic gastritis and is strongly associated with Helicobacter pylori infection.
(Gastric Adenocarcinoma, NCI Thesaurus)
Two major virulence factors of H. pylori are the vacuolating cytotoxin (VacA) and the cag type-IV secretion system (T4SS) and its translocated effector protein, cytotoxin-associated antigen A (CagA).
(Epithelial Cell Signaling Pathway in Helicobacter pylori Infection, NCI Thesaurus/KEGG)
Removal of tissue from the pylorus for microscopic examination, using an endoscope.
(Biopsy of Pylorus, NCI Thesaurus)
It may be caused by infection with the bacterium H. pylori or by certain autoimmune conditions.
(Gastric atrophy, NCI Dictionary)
Gastric involvement is associated with the presence of H. pylori infection.
(Extranodal Marginal Zone Lymphoma of Mucosa-Associated Lymphoid Tissue, NCI Thesaurus/WHO)
Recurrent gastric and duodenal ulcers caused by Helicobacter pylori infections are treated with antibiotic therapy.
(Anti-ulcer Agent, NCI Thesaurus)
People with H. pylori infections may be more likely to develop cancer in the stomach, including MALT (mucosa-associated lymphoid tissue) lymphoma.
(H. pylori, NCI Dictionary)
