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36 Cards in this Set
- Front
- Back
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H. pylori
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G-, curved, flagellated rod
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H. pylory produces this to raise pH
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urease
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H. Pylori is associated with ____ of peptic (stomach and duodenal) ulcers and ____ of gastric ulcers
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90%
80% |
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H. pylori bacteria causes increased _____ production
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acid
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H pylori endoscopy biopsy usually involves this test on tissue biopsy
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urease test
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individuals who have enhanced secretion of _____(pro-inflammatory cytokine) to bacteria have increased risk of ulcers
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IL-1b
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ulcers have a higher incidence in _____ and those with a diet high in ___ and preserved foods
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smokers
salt |
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those with diets high in _________ and______ are often protected from ulcers
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anti-oxidants
vitamin C |
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H. pylori has been linked to a _______ incidence of adenocaracinoma of the lower esophagus
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reduced
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Helicobacter pylori and ulcer Therapy
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two/three different AB plus an acid reducing drug
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B. cereus
S. aureus C. perfringens |
Toxin producers
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V. cholera
ETEC K. pneumoniae |
Enterotoxin
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EPEC
EAEC Giardia Cryptosporidium Helminths |
Enteroadherent
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C. difficile
EHEC |
Cytotoxin producers
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Rotavirus
Norwalk agent inflammation? |
minimal inflammation
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Salmonella
Camylobacter V. parahaemolyticus Yersinia inflammation? |
moderate inflammation
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Shigella
EIEC E. histolytica inflammation? |
severe inflammation
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Traveler’s – 40% of tourists to Latin America, Africa, Asia develop “traveler’s diarrhea”
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ETEC – enterotoxigenic E. coli
Camylobacter Shigella Salmonella |
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Russia, camper’s, swimmers
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Giardia
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Nepal
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Cyclospora
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Chicken, mayonnaise, creams, eggs: picnic, banquet, restaurant
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Salmonella, Campylobacter, Shigella
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Hamburger: undercooked
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EHEC – enterohemorrhagic E. coli
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Fried rice
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B. cereus
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Seafood
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Salmonella, Vibrio, hepatitis A
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Fermented tofu
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C. botulinum
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Daycare participants and their family
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Shigella
Giardia Cryptosporidium rotavirus |
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Institutionalized persons
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nosocomial infections of hospital patients
C. difficile |
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symptoms within 1-6h and last <12hr
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ingestion of a pre-formed toxin
S. aureus and B. cereus |
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symptoms in ~8-16hr (longer)
self limiting, lasting ~24hr |
C. perfringens
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meat/dairy products left at room temperature
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Staphylococcal food poisoning
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Staphylococcus aureus
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Gram positive cocci, clustered, coagulase positive
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Bacillus cereus
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Gram positive rod, chains, SPORE FORMER
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GI pathology of B Cereus
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can be both emeic or diarrheal
self limited |
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flaccid paralysis
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Clostridium botulinum type A
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Clostridium botulinum
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Gram positive rod, spore-former, anaerobic
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Botulism tx
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supportive care (ventilation) and anti-toxins
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