ph d class
DESCRIPTION
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H.Pylori
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Classification:
Domain BacteriaPhylum proteobacteriaClass EpsilonproteobacteriaOrder CampylobacteralesFamily HelicobacteriaceaeGenus Helicobater
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Classification:Helicobacteraceae:Genera: Helicobacter, Wolinella, Flexispira,Sulfurimonas, Thiomicrospira, and Thiovulum
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Microbiology of H. pylori
- Genome- Morphology-Cell envelope, and LPS-Growth requirements- Metabolism
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CLINICAL ASPECTS OF H. PYLORI ASSOCIATED DISEASES• Acute and chronic gastritis -Acute gastritis -Chronic gastritis
• Peptic ulcer disease -Gastric ulcers -Duodenal ulcers
• Gastric MALT lymphoma• Atrophic gastritis, intestinal metaplasia,
gastric cancer 8
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Natural History of Helicobacter pylori Infection
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Role of H. pylori Virulence Factors
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cag A (“cytotoxin associated gene A”)
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VacA (vacuolating cytotoxin A)
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Pathogenesis of H.pylori
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Pathogenesis of H.pylori
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توجه از تشكر با27 شما