Human Immunodeficiency Virus-HIV Flashcards
Sexual Transmission of HIV ?
- Homosexual-Male common
- Heterosexual
688
Parental transmission of HIV ??
- Blood & B products
- Drug abusers
- Contaminated needles
688
Vertical transmission of HIV ??
- During birth
- Transplacental
- Breast feeding
688
Other method of HIV ??
- Denoted organs
- Denoted semen
- Skin piercing
- Sharping sharp razors
689
why no vaccine of HIV ?
p24 - variation beshiiii
HIV + HBV
konta age Tx ?
HBV
HIV 1 vs HIV 2 = ??
HIV-1
worldwide
infectivity more
Incubation period - short
virulence - more
Types of HIV ?
HIV - 1+2
nucleocapsid core protein of HIV ?
p-24
p-17
envelope Atg of HIV ?
gp-120
gp-41
enzyme atg-p53
cancer associated with HIV ?
Non-hodgkin
kaposi sarcoma
burkitts lymphoma
cervical & anogenital cancer
late / immunodeficiency phase CD4+ T cells count in HIV ?
«_space;400 cells / micro L
when opportunistic infection by HIV ?
CD4+ T cells «_space;200 cells / micro L
why persistant infection in HIV ?
integration of viral DNA into the DNA of infected cells
regulatory genes in HIV required for replication ?
tat
rev
stage of HIV ?
early/acute
middle latent
late/immunodeficiency
tat function ?
activation of transport of viral genes
rev function ?
transport of mRNA from Nucleus to cytoplasm
sturctural genes found in retrovirus ?
gag
pol
env
gag type ?
p24 p7
p17
p17 of gag function ?
matrix
p24 / p7 of gag fucntion ?
nucelocapsid
env type >
Gp 120
Gp 41
Gp 120 function ?
attachment of CD4 protein
Gp 41 fucntion ?
fusion with host cells
pol genes types ?
RT
protease
integrase
Which suppression is marked in AIDS ?
CMI ==== Immunosuppressiomn
acute stage of HIV infection time ?
2-4 weeks
latent stage time ?
7-11 years
seequestrated site of HIV during latent phase ?
lymph node
why HIV more in female ?
viral load +++ beshi
sexual intercourse - microtrauma
larger mucosal surface
vaginal mucosa —- virus entry
how CD4+ t cells are destryoed in AIDS ?
689
anti-retroviral drugs name ?
zidovudine
etravirine
HAART full form ?
highly active anti-retroviral therapy
HAART drugs name ?
nucleoside /tide reverse transcriptase inhibitors +
one protease inhibitor
combination therapy of HAART ?
NRTI + PI
/
NRTI + NNRTI 696
How to monitor HIV ?
CD4+ T cell count
HIV RNA load
p24 Atg detection
how to detect viral load ?
RT-PCR
best & most consistent index for monitoring HIV ?
HIV RNA load
opportunistic fungal infections by HIV ?
Candida
cryptococcus
coccidioides
histoplasma
pneumocystosis jiroveci
Other protozoal infection ?
toxoplasma
strongyloides stercoralis
serological test / detection of AB ?
ELISA
western blot
detection of vrisal antigen >
p24 atg
detetion of viral RNA process ?
PCR
Immune function test ?
CD4+ cells «_space;200/mm3
why western blot not in use now ?
inability to detect acute infection
protential to misclassify HIV-2 infection as an HIV-1