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M9630123.TXT
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1996-02-27
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Document 0123
DOCN M9630123
TI Mother-to-child transmission of human T-lymphotropic virus type II.
DT 9603
AU Van Dyke RB; Heneine W; Perrin ME; Rudolph D; Starszak E; Woods T;
Switzer WM; Kaplan JE; Department of Pediatrics, Tulane University
School of Medicine,; New Orleans, Louisiana.
SO J Pediatr. 1995 Dec;127(6):924-8. Unique Identifier : AIDSLINE
MED/96101712
AB OBJECTIVE: To determine the frequency of mother-to-child transmission of
human T-lymphotropic virus type II (HTLV-II) and to explore its
association with breast-feeding. DESIGN: Prospective study of children
born to a cohort of HTLV-II-infected pregnant women and a
cross-sectional study of older siblings of these children. METHODS:
Maternal sera were screened with an HTLV-I enzyme immunoassay that
detects antibody to both HTLV-I and HTLV-II. Confirmatory serologic
testing and viral typing were performed by Western blot,
radioimmunoprecipitation assay, enzyme immunoassay with HTLV
type-specific proteins, and polymerase chain reaction (PCR) analysis of
DNA from peripheral blood mononuclear cells. The presence of HTLV was
evaluated in children by serial serologic and PCR testing. Molecular
analysis of PCR products from infected mother-child pairs was performed
by means of restriction fragment length polymorphism of HTLV-II
long-terminal repeated sequences. RESULTS: Twenty-nine HTLV-II-infected
women were identified, and these 29 women had 30 pregnancies during the
study. Of 28 live infants born to infected women, 19 were examined and
none was infected with HTLV-II. Sixteen older children less than 10
years of age who were born previously to the infected women were also
examined; two were infected with HTLV-II. One infected child was breast
fed for 2 months and the second was not breast fed. The viral patterns
of restriction fragment length polymorphism in the two infected children
were distinct, but the viral pattern in each child was identical to that
of her mother's virus, suggesting mother-to-child transmission. Overall,
among examined children, 1 of 7 breast-fed children (14%; 95% confidence
interval: 0, 40) and 1 of 28 children who were not breast fed (3.6%; 95%
confidence interval: 0, 10) were infected with HTLV-II. CONCLUSION:
Mother-to-child transmission of HTLV-II occurs both with and without
breast-feeding and at rates similar to those of HTLV-I. We believe that
this is the first demonstration of mother-to-child transmission of
HTLV-II in the absence of breast-feeding.
DE Blotting, Western Breast Feeding Child Child, Preschool Cohort
Studies Cross-Sectional Studies Female Human HIV-1/ISOLATION & PURIF
HTLV-I/ISOLATION & PURIF HTLV-II/*ISOLATION & PURIF Immunoenzyme
Techniques Infant *Maternal-Fetal Exchange Polymerase Chain Reaction
Polymorphism, Restriction Fragment Length Pregnancy Prospective
Studies Support, U.S. Gov't, P.H.S. JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).