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1996-03-09
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Document 0075
DOCN M9650075
TI Deoxyglucose uptake by mouse astrocytes: effects of temperature and
retrovirus infection.
DT 9605
AU Vann JM; Goldman AJ; Szurek PF; Brooks BR; Neurology Service, William S.
Middleton Memorial Veterans; Hospital, Madison, WI 53705-2286, USA.
SO Neurochem Res. 1995 Sep;20(9):1013-20. Unique Identifier : AIDSLINE
MED/96117160
AB Deoxyglucose uptake by FVB/N mouse astrocytes was studied before and
after infection by ts1 retrovirus which causes a neurodegenerative
disease in mice similar to HIV-1 encephalopathy in man. The
Michaelis-Menten kinetic parameters, Km and Vmax, of 2-deoxy-D-glucose
uptake by brain and cerebellar astrocytes were measured following
culture at 34 degrees C where ts1 retrovirus replicates optimally, and
at 37 degrees C. Compared to astrocytes cultured at 37 degrees C,
astrocytes cultured at 34 degrees C had increased Km and decreased
deoxyglucose uptake despite increased or unchanged Vmax. Following ts1
retrovirus infection, brain astrocyte deoxyglucose uptake doubled [132%]
associated with decreased Km but unchanged Vmax, whereas cerebellar
astrocyte deoxyglucose uptake doubled [102%] associated with increased
Vmax but unchanged Km. These observations of altered deoxyglucose uptake
kinetic parameters following retrovirus infection indicate different
neurochemical mechanisms for the regional variation in deoxyglucose
uptake observed following retrovirus infection of the CNS in vivo.
DE Animal Astrocytes/*METABOLISM AIDS Dementia Complex/*METABOLISM
Cells, Cultured Comparative Study Deoxyglucose/*METABOLISM
Fibroblasts/METABOLISM *Heat Human Kinetics Mice Retroviridae
Infections/*METABOLISM Support, Non-U.S. Gov't Support, U.S. Gov't,
Non-P.H.S. JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).