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Microbiology Lecture 35 Vocab
AIDS
31
Biology
Undergraduate 2
04/21/2009

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Term
AIDS
Definition

The disease caused by the HIV virus

 

Acquired immune deficiency syndrome

Term
HIV-1/ HIV-2
Definition

The two viruses that cause AIDS

 

Human Immunodeficiency Virus

 

1 is prevalent in the US and 2 is prevalent in Africa

Term
gag
Definition
The gene that makes the matrix and capsid proteins for HIV
Term
pol
Definition
The gene that produces RTase, protease, and integrase for HIV
Term
env
Definition
The genes that produce the surface glycoproteins gp120, gp41 for HIV
Term
Matrix Protein
Definition

Produced by the gag gene for HIV

 

structural proteins linking the viral envelope with the virus core

Term
Capsid Protein
Definition

Made by the gag protein for HIV

 

Protein that makes up the capsid of the virus

Term
Reverse Transcriptase
Definition

Enzyme maded by pol for HIV

 

Enzyme that assists in reverse transcription

Term
Integrase
Definition

Produced by pol for HIV

 

enzyme produced by a retrovirus (including HIV) that enables its genetic material to be integrated into the DNA of the infected cell

Term
Protease
Definition

Produced by pol for HIV

 

enzyme that conducts proteolysis, that is, begins protein catabolism by hydrolysis of the peptide bonds that link amino acids together in the polypeptide chain

Term
CD4 Receptor
Definition
Where HIV binds to on a TH cell
Term
CCR5 co-receptor
Definition
Where HIV virus can bind to on TH cells as a co-receptor
Term
Maraviroc
Definition
A CCR5 inhibitor used to prevent HIV from binding to TH cells
Term
CCR5Δ1
Definition
Mutation in CCR5 renders an insensitivity to HIV (Northern European and Austrailian)
Term
Acute Retrovirus Syndrome
Definition

A mild infection about 1 to 6 weeks after infection of HIV

 

Muscle aches, enlarged lymph nodes, rash, malaise

 

Could be mistaken for mono

 

Term
OraQuick HIV
Definition
An indirect ELISA that detects antibodies against HIV to test for HIV
Term
Confimatory Western Blot
Definition
A positive ELISA test for HIV is then screened by this  to look for HIV proteins in the patient's serum
Term
Secondary Infections
Definition
Infections that can be fatal for AIDS patients
Term
Kaposi Sarcoma (HHV-8)
Definition
A latent fection in blood vessel cells induced by HIV-1 to cause blood vessel proliferation (tumors)
Term
Pneumocystal pneumonia
Definition

Caused by an atypical fungus and is common in animals and children

 

Damages the alveoli

 

One of the secondary infections of AIDS

Term
Toxoplasmosis
Definition

A protozoan disease

 

The protozoan reproduces in cats, feces gets inhaled or ingested, sporozoites hatch, encysts tissues, cat eats cysts to complete life cycle

 

A secondary infection of AIDS

Term
Cytomegalovirus
Definition

A herpes virus

 

Most people get infected (as kids), virus persists (latent)

 

This infection reactivates in immunocompromised, damages cells in CNS (including retina --> blindness) and liver

Term
Non-Mtb Tuberculosis
Definition

This secondary infection is due to a weaker mycobacterial species than a normal infection

 

Often the terminal disease of AIDS

Term
Oral candidiasis
Definition

A fungal infection on the mucus membrane of the mouth

 

Also known as Thrush

 

A secondary infection of AIDS

Term
HAART
Definition

One of the types of chemotherapy for AIDS patients

 

It is a combination of two RT inhibitors

 

Highly active anti-retroviral therapy

Term
RT Inhibitor
Definition
A drug that inhibits reverse transcriptase in the HIV virus to prevent reverse transcription
Term
NRTI
Definition
An RT inhibitor that is a nucleoside analog so it competes with other factors that try to promote reverse transcriptase
Term
NNRTI
Definition

An RT inhibitor that is a non-nucleoside analog

 

It allosterically inhibits RTase (doesn't compete with other things)

Term
Protease Inhibitor
Definition

Inhibits the processing of the poly protein

 

Can dramatically lower HIV titer, but the provirus is still there so the virus can begin replicating again

Term
Atripla
Definition
A type of chemotherapy for AIDS patients that has two NRTIs and one NNRTI in one pill
Term
Canarypox Virus
Definition
It is the prefered host for recombinant vaccines like the ones attempted for AIDS
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