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Micro > Anaerobias > Flashcards

Anaerobias Flashcards

1
Q

Anaerobios estrictos

Vistos en clase

A

Clostridium spp
Propionibacterium
Actinomyces
Lactobacillus y Bifidobacterium
Bacteroides spp

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2
Q

Son bacterias:

A

Colonizadoras
Patógenos oportunistas

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3
Q

Morfología de Actinomyces spp

A

BGP
Bacilos alargados filamentosos

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4
Q

Metabolismo

Actinomyces spp

A

Anaerobio NO formador de esporas

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5
Q

Coloniza:

Actinomyces spp

A

Vías respiratorias superiores
TGI
Ap. genital femenino

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6
Q

Enfermedades

Actinomyces spp

A

Actinomicosis
Actinomicosis cervicofacial
Osteomielitis asociada a complicaciones periodontales

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7
Q

Actinomicosis

Actinomyces spp

A

Lesiones granulomatosas y supurativas
Abscesos fistulados
Gránulos de azufre al microscopio: bacterias filamentosas unidas por fosfato cálcico

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8
Q

Actinomicosis cervicofacial

Actinomyces spp

A

Mandibular: más común
Torácica
Abdominal
Pélvica

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9
Q

Casi todas las anaerobias son muy:

A

Purulentas

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10
Q

Forman/no forman parte de microbiota

A

Suelen formar parte

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11
Q

Anaerobios producen infecciones:

A

Polimicrobianas

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12
Q

Aislamiento

A

Difícil
- Muestras contaminadas
- Se necesita transporte y cultivo libre de O2
- Dependiente de métodos moleculares

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13
Q

Crecimiento de anaerobios:

A

Lento: > 7 días
Polimicrobiano

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14
Q

Produce infecciones:

Actinomyces spp

A

Crónicas

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15
Q

BGN anaerobio más frecuentemente involucrado a enf. abdominales

A

Bacteroides spp

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16
Q

Morfología de Bacteroides spp

A

BGN pleomórficos

17
Q

Metabolismo

Bacteroides spp

A

Anaerobios NO formadores de esporas

18
Q

Estimula su crecimiento

Bacteroides spp

A

Bilis

19
Q

Cápsula

Bacteroides spp

A

Polisacárida
LPS sin actividad endotoxina

20
Q

Característica importante

Bacteroides spp

A

Alta adherencia
- Fimbrias de adhesión epitelial y peritoneal

21
Q

Toxina

Bacteroides spp

A

Enterotoxina: toxina de B. fragilis estimula secreción de cloro
Produce diarrea acuosa

22
Q

Enfermedad

Bacteroides spp

A

Al salir de su nicho e invadir sitios estériles
Enf. abdominales
Abscesos
Infecciones de piel y tejidos blandos

23
Q

Abscesos

Bacteroides spp

A

Abdominales
Ginecológicos

24
Q

Inf. de piel y tejidos blandos

Bacteroides spp

A

Mordeduras humanas y animales
Heridas contaminadas por materia fecal
Mionecrosis
Fascitis necrosante

25
Q

Agar para Bacteroides

A

BBE: Bacteroides Bilis Esculina
Gentamicina, Bilis, Hierro

26
Q

Tratamiento

Bacterias anaerobias

A

Drenar abscesos
TODOS los anaerobios son intrínsecamente resistentes a AMINOGLUCÓSIDOS

Micro (12 decks)

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