Viral Patho/Pharmaco Flashcards

1
Q

Obligate Intracellular Parasite does what?

A

Introduces nucleic acids into the cell in a capsid with some tegument (loose proteins)

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2
Q

Glycopeptides determine what?

A

Host range

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3
Q

Virus’ are not?

A

Cells and have no reproductive system

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4
Q

How do they survive?

A

Host processes
Disrupt cell function
Impair synthesis and predispose to infection
Lyse out or become dormant

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5
Q

DNA Viruses are?

A
Small pox
Chickenpox
Herpes
Hep B
CMV
HPV
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6
Q

RNA Non-retro viruses are?

A
Rabies
Polio
Influenza
Colds
Measles Mump Rubella
Hep A/C
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7
Q

RNA Retroviral Viruses are?

A

HIV and HTLV (leukemia)

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8
Q

Absorption/attachment of virus

A

Determines host range

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9
Q

Entry

A

Penetration into the host cell

Fusion with cell membrane

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10
Q

Uncoating

A

Release of the viral nucleic acids

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11
Q

Replication

A

Prophage (lie dormant)

Lysogeny (replicate to lyse)

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12
Q

Assembly

A

New replicated viral prepare for inclusion

New glycoproteins and structures are staged and then assembled

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13
Q

Release

A

Lysis as a naked capsid virus or bud as an enveloped virus

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14
Q

Acyclovir and Valacyclovir MOA

A

Acts like guanine and causes termination

Needs thymidine kinase to add first phosphate

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15
Q

Valganciclovir is very good against?

A

CMV

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16
Q

Famciclovir is special how?

A

GI absorption

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17
Q

High Dose and IV -Cyclovirs have what ADRs

A

Myelosuppresion
Nephrotoxicity
Neuro

18
Q

Cidofovir MOA

A

Acts like cytosine and causes termination

Doesn’t need thymidine kinase

19
Q

Cidofovir activty

A

HSV, VZV, CMV

20
Q

Cidofovir ADR

A

Nephro

Bone Marrow Suppresion

21
Q

Foscarnet MOA

A

Bind DNA pol at the pyrophosphate binding site and inhibits elongation

22
Q

Foscarnet is given?

23
Q

Foscarnet ADRs?

A

Nephro
Neuro
Hypocalcemia

24
Q

Fomivirsen MOA

A

Gene silencing - inhibits replication

25
Amatadine and Rimatadine MOA
Cyclic primary Inhibit viral uncoating Inhibit assembly
26
Amatadine and Rimatadine is given?
PO
27
Oseltamivir & Zanamivir
Tamiflu and Relenza Analog of sialic acid Inhibit neuramidase and block release of new viruses
28
Oseltamivir is given?
PO
29
Oseltamivir ADR?
Psychiatric
30
Zanamivir is given?
Intranasal or inhalation
31
Hep B and Hep C treatment?
Adefovir Interferons Lamivudine and Telbivudine Ribavirin
32
Adefovir MOA
Mimics adensosine Acyclic Inhibits DNA pol
33
Adefovir is given?
PO
34
High dose adefovir can cause?
Nephro
35
Interferons MOA
Activate JACK-STAT and upregulate host cell proteins that affect viral production
36
Interferons are given?
IV
37
Interferons ADR
Myelosuppresion | CYP
38
Lamivudine MOA
Acts like cytosine
39
Telbivudine MOA
Acts like thymine
40
Lamivudine and Telbivudine are given?
PO
41
Ribavirin MOA
Tribavirin Decrease GTP synthesis Inhibits post-transcriptional process of viruses (capping)
42
Ribavirin is given?
PO or IV