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M94A0640.TXT
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1994-10-21
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Document 0640
DOCN M94A0640
TI Potential molecular competitors for HIV.
DT 9412
AU Pieczenik G; Cook College, Rutgers University, New Brunswick, NJ 08903.
SO Annu Conf Australas Soc HIV Med. 1993 Oct 28-30;5:64 (abstract no. TB5).
Unique Identifier : AIDSLINE ASHM5/94349015
AB The phenotype of clinically non-pathogenic strains of HIV-1 do not
differ dramatically from the clinical picture of pathogenic strain of
HIV-1. A differential diagnosis of a clinical infection with a
non-pathogenic strain is the observation of infectious hypo virulence.
Infectious hypo virulence is an infection of a partner or a cluster of
partners that shows an amelioration of symptoms or no AIDS symptoms over
time. The increased appearance of competitive transdominant
non-pathogenic strains may be the mechanism for ending an epidemic. The
calculated frequency of finding a non-pathogenic strain in a population
is related to the target size for clinical pathogenicity divided by the
size of the HIV-1 genome. A polio-type target size for HIV pathogenicity
(1 in 22 nucleotides) gives a frequency of 1 in 400 to 600 HIV-1
positive individuals carrying a non-pathogenic strain. This polio type
model also predicts that an individual carrying a competitive strain
will, also, have had at least 400-600 different HIV-1 infected partners.
The frequency of CD4+ T-Lymphocytopenia suggest that 1 in 9,500
individuals carry the second 22 nucleotide sequence, which is only
responsible for cytopathology, and none of the rest of the HIV-1 genome.
DE Base Sequence/GENETICS Cytopathogenic Effect, Viral/GENETICS DNA,
Viral/GENETICS Human HIV Infections/*MICROBIOLOGY
HIV-1/*GENETICS/PATHOGENICITY Virulence/GENETICS MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).