Abstract:
:The efficacy of funnel-freezing of rat brain to inactivate metabolic processes and preserve in vivo tissue glucose concentration was validated by comparing the results obtained by funnel-freezing with those obtained with freeze-blowing of brain. The arterial plasma glucose level was clamped at 9 mM in halothane-anesthetized rats to produce identical glucose levels in brain tissue prior to freeze fixation. In funnel-frozen and freeze-blown brains, tissue glucose concentrations were 2.47 +/- 0.05 and 2.47 +/- 0.06 mumol/g (means +/- SEM), respectively. Lactate levels in funnel-frozen brains were slightly but significantly higher than those in freeze-blown brains, i.e., 1.56 +/- 0.05 mumol/g versus 1.30 +/- 0.05 mumol/g (means +/- SEM; p less than 0.05). Regional analysis in funnel-frozen brains revealed that glucose concentrations in superficial and basal brain areas remained approximately equal at 2.30 +/- 0.1 mumol/g and 2.31 +/- 0.09 mumol/g (means +/- SEM), respectively. Our findings indicate that in the anesthetized rat, funnel-freezing of brain is suitable for the measurement of regional in vivo glucose concentrations.
journal_name
J Neurochemjournal_title
Journal of neurochemistryauthors
Mies G,Cruz N,Sokoloff Ldoi
10.1111/j.1471-4159.1991.tb02066.xsubject
Has Abstractpub_date
1991-05-01 00:00:00pages
1673-6issue
5eissn
0022-3042issn
1471-4159journal_volume
56pub_type
杂志文章abstract::The mouse myelin proteolipid protein (PLP) gene has been studied in normal and jimpymsd mice. Potential upstream regulatory regions of the normal gene have been cloned and mapped, but when these regions were studied in jimpymsd mice by Southern blots, no alterations were observed, relative to the normal gene. To asses...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1991.tb02576.x
更新日期:1991-01-01 00:00:00
abstract::To differentiate the effect of muscle contractile activity from that of motor nerve on oxidative processes in type I muscle, oxidative processes were studied in muscle after immobilization and after denervation. The two processes led to similar atrophy of muscle weight and of the mean diameter of muscle fibers. Disuse...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1980.tb09009.x
更新日期:1980-12-01 00:00:00
abstract::We report the distribution of choline acetyltransferase (ChAT) activity in the laminae of the rat olfactory tubercle. Within its posterior medical portion, the tubercle contains three parallel histological laminae that can be separated by cutting tangential sections from frozen tissue. ChAT was measured in homogenates...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1983.tb12655.x
更新日期:1983-01-01 00:00:00
abstract::Pigment epithelium-derived factor (PEDF), purified from human fetal retinal pigment epithelium cell culture medium, was shown to potentiate the differentiation of human Y-79 retinoblastoma cells. To investigate potential neurotrophic effects of PEDF on neurons other than those of retinal derivation, we used cultures o...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1995.64062509.x
更新日期:1995-06-01 00:00:00
abstract::The epitope for HNK-1 and patient's monoclonal autoantibodies in demyelinating polyneuropathy associated with immunoglobulin M gammopathy is borne by different types of N-linked oligosaccharide structures in human P0 and myelin-associated glycoprotein (MAG). Fourteen glycopeptide fractions bearing different oligosacch...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1992.tb09335.x
更新日期:1992-03-01 00:00:00
abstract::We studied the time course of oxidatively modified proteins in the nigrostriatal dopaminergic system following transection of the medial forebrain bundle by quantifying the number of carbonyl groups coupled to striatal and nigral protein homogenates, an index of metal-catalyzed oxidations. We found a striking effect o...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1997.68062458.x
更新日期:1997-06-01 00:00:00
abstract::Neuroleptics are thought to exert their anti-psychotic effects by counteracting a hyper-dopaminergic transmission. Here, we have examined the dopaminergic status of STOP (stable tubule only polypeptide) null mice, which lack a microtubule-stabilizing protein and which display neuroleptic-sensitive behavioural disorder...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2005.03166.x
更新日期:2005-07-01 00:00:00
abstract::Despite the increasing knowledge of Alzheimer's disease (AD) management with novel pharmacologic agents, most of them are only transiently fixing symptomatic pathology. Currently there is rapid growth in the field of neuroprotective pharmacology and increasing focus on the involvement of mitochondria in this devastati...
journal_title:Journal of neurochemistry
pub_type: 杂志文章,评审
doi:10.1111/j.1471-4159.2010.06814.x
更新日期:2010-08-01 00:00:00
abstract::Circulating antibody to the bovine white matter proteolipid apoprotein was detected in rabbits 1 month ater a single injection of the water-soluble form of the apoprotein. By double immunodiffusion, the antiserum reacted specifically with the delipidated proteolipid apoprotein and the crude proteolipid fraction contai...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1981.tb02383.x
更新日期:1981-01-01 00:00:00
abstract::This article is a critique of the paper by Khairnar et al. in the current issue of the Journal of Neurochemistry which describes the use of a sophisticated magnetic resonance imaging technique, diffusion kurtosis imaging, to investigate microstructural changes in the brain of TNWT-61 mice that are over-expressing α-sy...
journal_title:Journal of neurochemistry
pub_type: 社论
doi:10.1111/jnc.13522
更新日期:2016-03-01 00:00:00
abstract::Epinephrine (Epi) mediates various physiological effects via alpha2A-adrenergic receptors (alpha2A-ARs). Studies in mice with a point mutation in the gene for alpha2A-AR have shown that these receptors are responsible for the centrally mediated depressor effects of alpha2-AR agonists. These studies underscore the impo...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1998.70010086.x
更新日期:1998-01-01 00:00:00
abstract::Increasing reports support that air pollution causes neuroinflammation and is linked to central nervous system (CNS) disease/damage. Diesel exhaust particles (DEP) are a major component of urban air pollution, which has been linked to microglial activation and Parkinson's disease-like pathology. To begin to address ho...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.12231
更新日期:2013-06-01 00:00:00
abstract::Human brain aldose reductase and hexonate dehydrogenase are inhibited by alrestatin (AY 22,284) and sorbinil (CP 45,634). Inhibition by alrestatin is noncompetitive for both enzymes, and slightly stronger for hexonate dehydrogenase (KI values 52-250 microM) than for aldose reductase (KI values 170-320 microM). Sorbini...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1982.tb07964.x
更新日期:1982-09-01 00:00:00
abstract::A previous report has described the presence of t-[35S]-butylbicyclophosphorothionate binding sites and GABA-gated Cl- flux in the human neuroblastoma IMR-32 cell line. We now report the further characterisation of this binding site and, even more important, the identification of the GABAA receptor alpha 3 sub-unit ex...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1993.tb02182.x
更新日期:1993-08-01 00:00:00
abstract::Pretreatment of striatal membranes with N-ethylmaleimide in the presence of a D1-specific agonist inactivated endogenous guanine nucleotide binding proteins (G proteins), but not D1 dopamine receptors, resulting in a loss of high-affinity agonist binding sites. Such D1 receptors were solubilized, mixed with exogenous ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1991.tb08312.x
更新日期:1991-10-01 00:00:00
abstract::The role of protein kinase C (PKC) in modulating the release of the octapeptide cholecystokinin (CCK-8) was investigated in rat hippocampal nerve terminals (synaptosomes). The PKC-activating phorbol ester 4beta-phorbol 12,13-dibutyrate (beta-PDBu) dose dependently (5-5,000 nM) increased CCK-8 release in a strictly Ca2...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1998.70010341.x
更新日期:1998-01-01 00:00:00
abstract::N-Acetyl-L-aspartic acid was identified and determined in human cerebrospinal fluid. The concentration in lumbar fluid was about 2 nmol/ml and about 20 nmol/ml in ventricular fluid. There was no difference between healthy subjects and schizophrenic patients. ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1990.tb01208.x
更新日期:1990-05-01 00:00:00
abstract::A procedure is described for the rapid preparation of nerve ending particles (synaptosomes) from 11 regions of one rat brain. The synaptosomal fractions have been characterized by electron microscopy and determination of four marker enzymes, i.e., glutamate decarboxylase (GAD), acetylcholinesterase, succinate dehydrog...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1985.tb04076.x
更新日期:1985-09-01 00:00:00
abstract::The primary structure of the second transmembrane (M2) segment of resistant to dieldrin (RDL), an ionotropic γ-aminobutyric acid receptor (GABAR) subunit, and the structure-function relationships in RDL are well conserved among insect species. An amino acid substitution at the 2' position in the M2 segment (Ala to Ser...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.15179
更新日期:2020-12-01 00:00:00
abstract::The NMDA receptor/channel has been shown to be inhibited by ethanol in the clinically relevant range 25-100 mM. We studied heteromeric assemblies (NR1b/NR2) of the NMDA receptor, expressed in oocytes, to address three questions regarding this inhibition, and discovered the following: (1) The inhibition was nearly equi...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1995.65010140.x
更新日期:1995-07-01 00:00:00
abstract::gamma-Aminobutyric acidB (GABAB) receptor recognition sites that inhibit cyclic AMP formation, open potassium channels, and close calcium channels are coupled to these effector systems by guanine nucleotide binding proteins (G proteins). These G proteins are ADP-ribosylated by islet-activating protein (IAP), also know...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1989.tb11769.x
更新日期:1989-09-01 00:00:00
abstract::Autoimmune optic neuritis (AON), a model of multiple sclerosis-associated optic neuritis, is accompanied by degeneration of retinal ganglion cells (RGCs) and optic nerve demyelination and axonal loss. In order to investigate the role of N-methyl-d-aspartate (NMDA) receptors in mediating RGC degeneration, upstream chan...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.14980
更新日期:2020-06-01 00:00:00
abstract::Mechanical strain in neural tissues can lead to the up-regulation and release of multiple cytokines including interleukin 6 (IL-6). In the retina, the mechanosensitive release of ATP can autostimulate P2X7 receptors on both retinal ganglion cell neurons and optic nerve head astrocytes. Here, we asked whether the purin...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.13998
更新日期:2017-05-01 00:00:00
abstract::The effects of a potent adenosine deaminase inhibitor, deoxycoformycin, on purine and amino acid neuro-transmitter release from the ischemic rat cerebral cortex were studied with the cortical cup technique. Cerebral ischemia (20 min) was elicited by four-vessel occlusion. Purine and amino acid releases were compared f...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1991.tb08198.x
更新日期:1991-02-01 00:00:00
abstract::The tracers 6-[18F]fluoro-L-3,4-dihydroxyphenylalanine (6-[18F]fluoro-L-DOPA) and L-[14C]DOPA were injected simultaneously into rhesus monkeys, and the time course of their metabolites was measured in the striatum and in the occipital and frontal cortices. In the striatum, 6-[18F]fluoro-L-DOPA was metabolized to 6-[18...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1987.tb05629.x
更新日期:1987-04-01 00:00:00
abstract::The aim of this study was to examine the effects of the phorbol ester O-tetradecanoylphorbol 13-acetate (TPA) and forskolin on delta-opioid receptor gene transcription. Treatment of NG108-15 cells with TPA (100 nM) for 48 h increased delta-opioid receptor mRNA levels, whereas different concentrations of forskolin indu...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2000.0741355.x
更新日期:2000-04-01 00:00:00
abstract::The nicotinic acetylcholine receptor (AChR) exhibits at least four different conformational states varying in affinity for agonists such as acetylcholine (ACh). Photoaffinity labeling has been previously used to elucidate the topography of the AChR. However, to date, the photosensitive probes used to explore the choli...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1996.67062557.x
更新日期:1996-12-01 00:00:00
abstract::The effect of nociceptin (an endogenous ligand of the ORL1 receptor) on mesolimbic dopamine release and simultaneous horizontal locomotion was studied in freely moving mice undergoing microdialysis of the nucleus accumbens. Intracerebroventricular (i.c.v.) administration of nociceptin (7 nmol) induced a long-lasting s...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2003.02322.x
更新日期:2004-04-01 00:00:00
abstract::Proteins that control the excitability of neurons, including voltage-dependent ion channels and neurotransmitter receptors, reside in a membrane lipid environment that includes sphingomyelin, but the influence of the metabolism of this lipid on excitability is unknown. Sphingomyelin in the plasma membrane can be cleav...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2010.06779.x
更新日期:2010-07-01 00:00:00
abstract::Platelet-activating factor (PAF) may be a neuromodulator involved in neural cell differentiation, cerebral inflammation, and ischemia. The PAF receptor is a member of the G protein-coupled receptor superfamily. In the present study, we sought to define the specific G protein(s) that mediate PAF-stimulated phosphoinosi...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1996.67041478.x
更新日期:1996-10-01 00:00:00