VIH Flashcards

1
Q

Virus que causan Hepatitis

A
  • Hep
  • EBV
  • CMV
  • VIH
  • Adenovirus
  • Enterovirus
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2
Q

Familia de VIH

A

Retrovirus

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3
Q

Retrovirus que infectan al ser humano

A
  • Human foamy virus
  • HIV
  • Human T Lymphotrophic Virus (Linfoma de células T - en inmunocomprometidas)
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4
Q

8% del genoma viene de

A

retrovirus endógenos

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5
Q

Epidemiología VIH en 2020

A

37.7 M prevalencia
27.5 M acceso a tratamiento
(dónde queda el resto?)

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6
Q

Poblaciones de riesgo del VIH

4 Hs

A
  1. Homosexuales
  2. Haitianos (social)
  3. Homofílicos (transfusión)
  4. Heroinómanos
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7
Q

Tipos de VIH

A

VIH1 & VIH2

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8
Q

Grupos de VIH1

A
  • MNOP

Remember: “Mi Novio es Obsesivo y Posesivo

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9
Q

VIH estructura

A
  • Envuelto
  • ssRNA (dos copias)
  • glucoprot. gp120
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10
Q

receptores de la gp120

A

receptores CD4 (ej. Lin T CD4+)
+ correceptor de quimiocinas CCR5

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11
Q

Enzimas indispensables del VIH (blanco de antiretrovirales)

A

1) Retrotranscriptasa reversa
2) Integrasa
3) Proteasa

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12
Q

función de la proteasa

A

cambios postraduccionales
paso final para convertirse en un virión

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13
Q

grupo más importante de antiretrovirales para VIH

A

Inhibidoras de la Transcriptsa reversa > 50 tipos

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14
Q

una célula debe expresar ___ y ____ para poder infectarse por VIH

A

CCR5 y CD4

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15
Q

La variabilidad del VIH se debe principalmente a 3 características

A

1) Propensión al error de la RT –> 1 sust. por replicación
2) Rapidez de replidación –> 10^10 viriones / día
3) Recombinación - versiones de VIH

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16
Q

De 10,000 personas transfundidas con sangre VIH
¿Cuántas adquieren el virus?

A

9,250

17
Q

De 10,000 personas transfundidas con sangre VIH
¿Cuántas adquieren el virus?

A

9250