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1996-03-09
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Document 0153
DOCN M9650153
TI Dynamics of viral replication in infants with vertically acquired human
immunodeficiency virus type 1 infection.
DT 9605
AU De Rossi A; Masiero S; Giaquinto C; Ruga E; Comar M; Giacca M;
Chieco-Bianchi L; Institute of Oncology, InterUniversity Center for
Cancer; Research, AIDS Reference Center, University of Padova, Italy.
SO J Clin Invest. 1996 Jan 15;97(2):323-30. Unique Identifier : AIDSLINE
MED/96149157
AB About one-third of vertically HIV-1 infected infants develop AIDS within
the first months of life; the remainder show slower disease progression.
We investigated the relationship between the pattern of HIV-1
replication early in life and disease outcome in eleven infected infants
sequentially studied from birth. Viral load in cells and plasma was
measured by highly sensitive competitive PCR-based methods. Although all
infants showed an increase in the indices of viral replication within
their first weeks of life, three distinct patterns emerged: (a) a rapid
increase in plasma viral RNA and cell-associated proviral DNA during the
first 4-6 wk, reaching high steady state levels (> 1,000 HIV-1
copies/10(5) PBMC and > 1,000,000 RNA copies/ml plasma) within 2-3 mo of
age; (b) a similar initial rapid increase in viral load, followed by a
2.5-50-fold decline in viral levels; (c) a significantly lower (>
10-fold) viral increase during the first 4-6 wk of age. All infants
displaying the first pattern developed early AIDS, while infants with
slower clinical progression exhibited the second or third pattern. These
findings demonstrate that the pattern of viral replication and clearance
in the first 2-3 mo of life is strictly correlated with, and predictive
of disease evolution in vertically infected infants.
DE Disease Transmission, Vertical DNA, Viral/ANALYSIS Human HIV
Infections/*MICROBIOLOGY HIV-1/*GROWTH & DEVELOPMENT/GENETICS Infant
Infant, Newborn Polymerase Chain Reaction/METHODS Proviruses/CHEMISTRY
RNA, Viral/ANALYSIS Support, Non-U.S. Gov't Virion/CHEMISTRY Virus
Replication JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).