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Antivirals
Concepts
39
Biology
4th Grade
12/11/2012

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Term
Based on genomic structure, RNA + must be switched to RNA - before becoming mRNA
Definition
Baltimore classification of viruses
Term
Meningitis: viral
Definition
mild, self limiting
Term
Meningitis: bacterial
Definition
if left untreated die within 48 hours
Term
Meningitis: fungal
Definition
rare in general population, common in immunocompromised
Term
Gastroenteritis: viral
Definition
relatively mild
Term
Gastroenteritis: bacterial
Definition
much more serious, not self limiting
Term
Pneumonia: viral
Definition
self limiting
Term
Pneumonia: bacterial and fungal
Definition
much more serious
Term
Three major categories of chemotherapy of viral infections
Definition
Virucidal, antiviral, immunomodulating
Term
Vaccination
Definition
smallpox, polio, #1 means of control
Term
Disinfection
Definition
bleach, gluteraldehyde
Term
usually too toxic, directly kill viruses in their free form (ex: gluteraldehyde, used to disinfect things)
Definition
Virucidal
Term
inhibits viral replication, reversible (nothing says it is killing the virus, like a bacteriostatic agent)
Definition
Antiviral
Term
alters host response (interferon's, anti-nodes, don't act on viruses directly but alters host response
Definition
Immunomodulating
Term
Hepatitis A
Definition
15%
Term
Hepatitis B
Definition
> 40% (Hepadnavirus, dsDNA)
Term
HSV-1 and HSV-2
Definition
Herpes simplex
Term
chickenpox, zoster
Definition
Varicella (VZV)
Term
severe in AIDS
Definition
Cytomegalovirus (CMV)
Term
mononucleosis, burkitt's lymphoma, nasopharyngeal carcinoma
Definition
Epstein Barr (EBV)
Term
Influenza (A and B)
Definition
Orthomyxoviridae, ssRNA
Term
all renally excreted unchanged; prodrugs that are step-wise activated by kinases
Definition
Nucleoside analogs
Term
Nuceleoside analogs
Definition
generally teratogenic and mutagenic in vitro
Term
has ribose = OH
Definition
RNA
Term
has deeoxyribose, H on sugar
Definition
DNA
Term
Acyclovir used topically
Definition
Primary and recurrent genital herpes,herpetic keratitis; generally more effective in primary than recurrent episodes
Term
Acyclovir used orally
Definition
suppression of recurrent genital herpes and mucocutaneous infections in immunocompromised hosts; varicella zoster w/in 72 hours; varicella w/in 24 hours
Term
Acyclovir used IV
Definition
HSV encephalitis; rapid infusion causes crystalline nephropathy
Term
Gangliciclovir used orally
Definition
Poor (<5%) oral bioavailability
Term
Gangliciclovir treatment
Definition
serious CMV infections in immunocompromised host; retinitis, esophagitis, colitis, cholangitis, pneumonia; prophylactic use emerging
Term
Gangliciclovir severe toxicity
Definition
anemia, neutropenia, thrombocytopenia (<40%)
Term
Gangliciclovir CNS toxicity
Definition
headache, psychosis, convulsions(not limited to nucleoside analogues)
Term
Major use in LRTI due to respiratory syncytial virus (RSV) in pediatric with underlying disease
Definition
Ribavirin
Term
Active against most HSV and CMV; administered IV
Definition
Foscarnet
Term
Foscarnet adverse effects
Definition
renal insufficiency, malaise, N/V; tremor, seizures, irritability, hallucinations
Term
Also used in Parkinson's disease: increases nigrostriatal DAergic output
Definition
Amantadine
Term
Amantadine Treatment and chemoprophylaxis
Definition
influenza A only; compatibile with influenza vaccine
Term
Amantadine side effects
Definition
dry mouth, constipation, urinary constriction (AntiACh releated effects)
Term
Reduces severity and duration of influenza symptoms; well tolerated; first influenza-specific family of drugs
Definition
oseltamivir and zanamivir
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