Helycobacter Flashcards

1
Q

Morfología y tincion de gram en Helycobacter

A

Bacilo gram negativo, helicoidal

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2
Q

¿Cuánto mide Helycobacter Pylori?

A

.5 a 1 micra

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3
Q

Oxidasa, catalasa y ureasa en helycobacter pylori

A

Oxidasa +
Catalasa +
Ureasa + ( Rosita)

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4
Q

Helycobacter pylori es motil

A

Si, posee 4 flagelos lofotricos en penacho

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5
Q

En qué agar crece Helycobacter Pylori

A

Agar Brucella o BHI

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6
Q

En cuanto a su patogenia, Helycobacter Pylori posee mecanismos de adherencia?

A

Si, se adhiere gracias a proteínas de membrana externa

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7
Q

¿Helicobacter Pylori posee toxinas?

A

Si, son
VacA
Cag

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8
Q

¿Que hace la ureasa para favorecer a la patogenicidad de Helicobacter Pylori?

A

Crea un ambiente en ph neutro donde la bacteria pueda sobrevivir

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9
Q

¿Cuál es la acción de la toxina VacA en la patogenia de Helicobacter Pylori?

A

Ingresa a las células creando vacuolas citoplasma tocas que provocan la apopotosis celular

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10
Q

Helycobacter Pylori es considerado como un agente carcinogénico

A

Verdadero, causa adenocarcinoma gástrico

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11
Q

Diagnóstico

A

Serologia IgG en sangre, antigeno en heces

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12
Q

Tratamiento de Helicobacter Pylori

A

Sales de bismuto + dos antibióticos
Metronidazol
Tetraiclina

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