Biology Questions and Answers
banks nowadays use the PCR
(polymerase test that is not chain rdistorted eaction) fby the windowor HIV, a (^)
phase since it is not antibody-based.
Using specific primers, the PCR detectsthe presence of DNA generated by
reverse transcription of the HIV RNA.
- What are some strategies
of the anti-retroviral drugs
used in the AIDS treatment?
Anti-retroviral drugs used in AIDS
treatmseveral steps oent try to af the HIV life cycle. Tpproach any of thehere (^)
are three main groups of drugs: the
reverse attempt to transcriptasedisallow the inhibitors, thatformation of
DNA from the viral RNA (zidovudine, or
AZT, defavirenz, etc.); dI, d4T, 3TC, nevirapithe protease inhibitors,ne, (^)
that block the enzyme protease
necessary fovirus (saquinavir, ritor the assemblagnavir, nelfinavir,e of new (^)
indinavir); and the group of entry
inhibitors (incluthat try to block thdes fusion inhibitors),e entry of HIV into (^)
the host cell (enfuvirtide, a fusion
inhibitor).
- Why is the AIDS treatment
often done with a drug
cocktail?
The treatment odeficiency syndrome is of acquired immuften done withne (^)
one or more anti-retroviral drugs of
different groups, fprotease inhibitor plus a reverseor example, a (^)
transcriptase inhibitor in an attempt to
approach stages of the HIV life cycle. Besidin one single time two or morees
that, the high mutation rate of the virus
may makfor this reason the the treatmee use of the drugnt ineffective and
cocktail allows physicians to choose
other different drug combinatioescape the viral resistance. ns to
- What are some
prophylactic measures against
HIV infection?
The main pHIV infection rophylacticare: the use of condoms i measures againstn (^)
sexual relations, nand needles, careful handling ofot to share syrin ges
contaminated medical and nosocomial
material, uthe virus and its mode of transmission.p-to-date information about
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