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1996-03-30
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Document 1094
DOCN M9651094
TI Detection of IgM antibodies to human herpesvirus 6 in Romanian children
with nonprogressive human immunodeficiency virus disease.
DT 9505
AU Nigro G; Luzi G; Krzysztofiak A; D'Orio F; Aiuti F; Pediatric Institute,
La Sapienza University, Rome, Italy.
SO Pediatr Infect Dis J. 1995 Oct;14(10):891-4. Unique Identifier :
AIDSLINE MED/96117428
AB The prevalence of human herpesvirus 6 (HHV-6) infection and the course
of human immunodeficiency virus (HIV) disease were investigated in 25
Romanian children with nosocomial HIV-1 infection. HHV-6 IgM and IgG
antibodies were detected by enzyme immunoassay (EIA) and
immunofluorescence assay (IFA) at the beginning of the study and after
18 months, concomitantly with collection of virologic, immunologic and
clinical data. The initial HHV-6 seropositivity was 92% by EIA and 76%
by IFA, whereas final testing showed 100% positivity by EIA and 84% by
IFA. Positive HHV-6 IgM antibodies were detected in 10 children (40%) by
EIA and IFA. Of these 9 children (36%) by EIA and 6 (24%) by IFA had
both initial and final IgM antibodies. Children with HHV-6 IgM
antibodies had a higher prevalence of pneumonitis than those without
(100% vs. 53.3%; P < 0.01). In addition they more frequently showed
positive p24 antigen detection (67% vs. 40%) and positive HIV-1 culture
(80% vs. 69%). Nevertheless the patients with HHV-6 IgM antibodies
showed a slight increase in the final mean CD4+ T cell count (from 1.140
to 1.185 x 10(6)/liter), whereas those with HHV-6 IgG alone showed a
statistically significant (P = 0.01) decrease (from 1.395 to 968 CD4+
T-cells x 10(6)/liter). Therefore current or recent HHV-6 infection, as
revealed by positive HHV-6 IgM antibodies, appeared to be associated
with the development of pneumonitis but not with progression of HIV
disease. A possible competitive inhibition of HIV-1 by HHV-6 or a
stimulating effect of HHV-6 on CD4+ T-cell production may be suggested.
DE Antibodies, Viral/*BLOOD AIDS-Related Opportunistic
Infections/*DIAGNOSIS/EPIDEMIOLOGY Child, Preschool Cross Infection
Disease Progression Female Fluorescent Antibody Technique, Indirect
Herpesviridae Infections/COMPLICATIONS/*DIAGNOSIS/EPIDEMIOLOGY
Herpesvirus 6, Human/*IMMUNOLOGY Human HIV Antibodies/BLOOD HIV
Infections/COMPLICATIONS/IMMUNOLOGY/*PHYSIOPATHOLOGY *HIV-1 IgG/*BLOOD
IgM/*BLOOD Immunoenzyme Techniques Infant Male Prevalence
Romania/EPIDEMIOLOGY Support, Non-U.S. Gov't JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).