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1996-03-30
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Document 0964
DOCN M9650964
TI Concurrence of high levels of interferons alpha and beta in cord and
maternal blood and simultaneous presence of interferon in trophoblast in
an African population.
DT 9505
AU Ebbesen P; Hager H; Norskov-Lauritsen N; Aboagye-Mathiesen G; Zdravkovic
M; Villadsen J; Liu X; Petersen PM; Bambra C; Nyongo A; et al; Danish
Cancer Society, Department of Virus and Cancer, Aarhus.
SO J Interferon Cytokine Res. 1995 Feb;15(2):123-8. Unique Identifier :
AIDSLINE MED/96172466
AB A high concentration of interferon-alpha (IFN-alpha) (> 5 U/ml) in cord
blood was used as the criterion for establishing our study group. In a
collection from deliveries by 269 Kenyan women, 16 such cord samples
with matching maternal blood and placental biopsies were identified.
These 16 were studied in detail together with 23 randomly selected among
those with low cord IFN-alpha levels. The levels of IFN- in retal blood
correlated with levels in their mothers for both IFN-alpha and beta but
not for IFN-gamma. IFN-alpha was furthermore demonstrated in villous and
decidual trophoblast from 15 (94%) placentae from donors with high
IFN-alpha in the cord blood but not in the placenta of any low IFN level
donors. In contrast, IFN-beta was not demonstrated in any placenta.
These observations suggest simultaneous IFN induction in the three
compartments, transplacental IFN transport, or trophoblast production of
IFN to both circulations. Looking for IFN inducers, we did serologic
tests for nonspecific indicators of inflammation and for specific virus
and protozoan infections, but these showed no relation to elevated IFN
levels. Immunohistology also revealed no evidence of a number of
placental infections. The cause of the high levels of IFN-alpha could
still be infectious but remains unexplained and may be noninfectious.
DE Biopsy C-Reactive Protein/BIOSYNTHESIS Case-Control Studies
Comparative Study Female Fetal Blood/*IMMUNOLOGY Human HIV
Seronegativity/IMMUNOLOGY HIV Seropositivity/IMMUNOLOGY
Immunoglobulins/BIOSYNTHESIS Interferon-alpha/BIOSYNTHESIS/*BLOOD
Interferon-beta/BIOSYNTHESIS/*BLOOD Kenya Placenta/IMMUNOLOGY Random
Allocation Support, Non-U.S. Gov't Trophoblast/*IMMUNOLOGY JOURNAL
ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).