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VEQ in Diagnostica Microbiologica: Elicobacter pylori - V. Sambri

VEQ in Diagnostica Microbiologica: Elicobacter pylori - V. Sambri

VEQ in Diagnostica Microbiologica: Elicobacter pylori - V. Sambri

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• H.<strong>pylori</strong> tipo I:<br />

• PAI cag contiene cagA<br />

• ag superficie cagA ~120 kDa<br />

• vacA e toss<strong>in</strong>a VacA (citotossica - vacuolizzante )<br />

– patologia più severa: PU, GCA, MALT, GC<br />

• H.<strong>pylori</strong> tipo II:<br />

H.<strong>pylori</strong>:patogenesi<br />

• non esprimono cagA<br />

• <strong>in</strong> genere non producono VacA (ma hanno vacA)<br />

– patologia più lieve: moderata gastrite (topo)<br />

veq 22/10/05

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