helicobacter pylori Flashcards

1
Q

como es el LPS de helicobacter?

A

poco antigénico

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2
Q

que coloniza cronicamente el helicobacter?

A

el estomago

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3
Q

que producción bloquea helicobacter?

A

la de acido gástrico o lo neutralizan (ureasa)

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4
Q

en qué paises prevalece mas el helicobacter?

A

paises en desarrollo (pobres)

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5
Q

unico reservorio de helicobacter

A

humano

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6
Q

principal FP de helicobacter

A

ureasa

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7
Q

para que es factor de riesgo helicobacter?

A
  • gastritis
  • ulceras gastricas
  • adenoma gastrico
  • linfomas tipo MALT
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8
Q

para que puede ser un factor protector estar colonizados por helicobacter?

A

para
* reflujo gastroesofágico
* adenocarcinoma esofágico

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9
Q

con que esta muy relacionada helicobacter?

A
  • ulceras gastricas (85%)
  • ulceras duodenales (95%)
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10
Q

como se dx helicobacter?

A
  • prueba de la ureasa
  • microscopia en biopsia
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11
Q

por que helicobacter es de cultivo dificil?

A

por:
* microaerofilia
* baja temp
* medios complejos

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