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M9630131.TXT
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1996-02-27
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Document 0131
DOCN M9630131
TI Increased brain levels of platelet-activating factor in a murine
acquired immune deficiency syndrome are NMDA receptor-mediated.
DT 9603
AU Nishida K; Markey SP; Kustova Y; Morse HC 3rd; Skolnick P; Basile AS;
Sei Y; Section on Analytical Biochemistry, National Institute of Mental;
Health, National Institutes of Health, Bethesda, Maryland 20892,; USA.
SO J Neurochem. 1996 Jan;66(1):433-5. Unique Identifier : AIDSLINE
MED/96102965
AB Mice infected with the LP-BM5 murine leukemia virus (MuLV) develop an
immunodeficiency syndrome (murine AIDS) and an encephalopathy
characterized by impaired spatial learning and memory. Because
platelet-activating factor (PAF) has been implicated in the pathogenesis
of HIV-associated dementia complex, brain PAF levels were measured in
LP-BM5 MuLV-infected mice. PAF levels in cerebral cortex and hippocampus
were significantly increased at 6 and 12 weeks after LP-BM5 MuLV
inoculation, whereas significant increases in striatal and cerebellar
PAF levels were observed only at 12 weeks after inoculation.
Administration of the NMDA antagonist MK-801 significantly reduced the
increased PAF levels in the cerebral cortex and hippocampus of LP-BM5
MuLV-infected mice. These results indicate that the LP-BM5 MuLV-induced
increases in brain PAF levels are the results of NMDA receptor
activation and are consistent with the hypothesis that elevated CNS PAF
levels contribute to the behavioral deficits observed in LP-BM5
MuLV-infected mice.
DE Animal AIDS Dementia Complex/*METABOLISM Behavior, Animal/PHYSIOLOGY
*Brain Chemistry *Disease Models, Animal Dizocilpine
Maleate/PHARMACOLOGY Excitatory Amino Acid Antagonists/PHARMACOLOGY
Human Mice Mice, Inbred C57BL Murine Acquired Immunodeficiency
Syndrome/*METABOLISM Platelet Activating Factor/*BIOSYNTHESIS/GENETICS
Receptors, N-Methyl-D-Aspartate/*PHYSIOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).