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). Sorbinil inhibits hexonate dehydrogenase far more potently than aldose reductase, KI values being 5 5 microM for hexonate dehydrogenase and 150 microM for aldose reductase. The inhibition of hexonate dehydrogenase by sorbinil is noncompetitive with respect to both aldehyde and NADPH substrates, and is thus kinetically similar to the inhibition by alrestatin. However, sorbinil inhibition of aldose reductase is uncompetitive with respect to glyceraldehyde and noncompetitive with NADPH as the varied substrate. Inhibition of human brain aldose reductase by these two inhibitors is much less potent than that reported for the enzyme from other sources.
journal_name
J Neurochemjournal_title
Journal of neurochemistryauthors
O'Brien MM,Schofield PJ,Edwards MRdoi
10.1111/j.1471-4159.1982.tb07964.xsubject
Has Abstractpub_date
1982-09-01 00:00:00pages
810-4issue
3eissn
0022-3042issn
1471-4159journal_volume
39pub_type
杂志文章abstract::High-affinity binding sites (apparent KD = 1.5 nM) for [3H]desipramine have been demonstrated and characterized in membranes prepared from rat brain. The binding of [3H]desipramine was found to be saturable, reversible, heat-sensitive, sodium-dependent, and regionally distributed among various regions of the brain. Hi...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1982.tb05326.x
更新日期:1982-04-01 00:00:00
abstract::Complementary DNAs that encode two forms of the chicken gamma-aminobutyric acid type A (GABAA) receptor beta 2 subunit have been isolated. These polypeptides differ by the presence of (beta 2L) or absence (beta 2S) of 17 amino acids, which contain a possible target for phosphorylation by protein kinase C, in the large...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1994.62010010.x
更新日期:1994-01-01 00:00:00
abstract::Interleukin-6 (IL-6) is involved in the pathophysiology of various diseases of the CNS. Because the molecular mechanism of action of this cytokine in human neurons is not well understood, we were interested in characterizing and defining a model system for IL-6-induced activation of signal transduction cascades, trans...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:
更新日期:1999-11-01 00:00:00
abstract::Previous studies from this laboratory have shown that synthesis of GT3, the precursor of c series gangliosides, occurs in proximal Golgi compartments, as has been shown for the synthesis of GM3 and GD3, the precursors of a and b series gangliosides, respectively. In this work we studied whether the synthesis of GM3, G...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1996.67041393.x
更新日期:1996-10-01 00:00:00
abstract::Lysophosphatidic acid (LPA) is a potent lipid biomediator that is likely to have diverse roles in the brain. Thus, LPA-induced events in astrocytes were defined. As little as 1 nM LPA induced a rapid increase in the concentration of intracellular free calcium ([Ca2+]i) in astrocytes from neonatal rat brains. This incr...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1997.69031073.x
更新日期:1997-09-01 00:00:00
abstract::The I1-imidazoline receptor (I1R) is a proposed target for drug action relevant to blood pressure and glucose control. The imidazoline receptor antisera-selected (IRAS) gene, also known as Nischarin, has several characteristics of an I1R. To test the contribution of IRAS to I1R binding capacity and cell-signaling func...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2006.04413.x
更新日期:2007-04-01 00:00:00
abstract::Antisera were raised in rabbits against the alpha subunit of a GTP-binding protein, Go. Because the antisera cross-reacted weakly with the alpha subunit of inhibitory GTP-binding protein of adenylate cyclase (Gi), they were purified with a Go alpha-coupled Sepharose column. Purified antibodies reacted only with Go alp...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1987.tb05710.x
更新日期:1987-05-01 00:00:00
abstract::We examined the effects of orally administered 5'-cytidinediphosphocholine (CDP-choline) on arterial plasma choline and cytidine levels and on brain phospholipid composition in rats. Animals receiving a single oral dose of 100, 250, or 500 mg/kg showed peak plasma choline levels 6-8 h after drug administration (from 1...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1995.65020889.x
更新日期:1995-08-01 00:00:00
abstract::The lipids of gastrocnemius muscle from normal and dystrophic (dy) mice of the Bar Harbor, 129Re strain were studied. Animals were fed diets containing either 3.1% or 1.1% of total calories as linoleic acid. Lipid analyses were also done on muscle from a new mouse mutant, A2G-adr, which has abnormal muscle function, c...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1985.tb05502.x
更新日期:1985-07-01 00:00:00
abstract::A neutral, mannose-rich, concanavalin A (Con A)-binding glycopeptide fraction was obtained by proteolytic digestion of defatted beef brain tissue. Hydrazinolysis followed by gel filtration of the reaction products provided three oligosaccharides. A portion of each oligosaccharide was treated by exhaustive digestion wi...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1983.tb04746.x
更新日期:1983-08-01 00:00:00
abstract::In the present study we have used perfused hippocampal slices to examine the hypothesis that nitric oxide (NO) can evoke the release of adenosine from nervous tissue. ATP stores were labeled by incubation with [3H]adenine. Electrical field stimulation at 5 Hz for 5 min evoked the release of 3H-purines, and this was en...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1996.67010186.x
更新日期:1996-07-01 00:00:00
abstract::Aging was associated with an increase in the density of specific binding sites for [3H]imipramine in postmortem specimens of human hypothalamus, frontal cortex, and parietal cortex. In general, [3H]imipramine binding was not affected by factors considered difficult to control in postmortem studies, i.e., time from dea...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1985.tb07203.x
更新日期:1985-11-01 00:00:00
abstract::Several mechanisms have been implicated in pathological neuronal death including zinc neurotoxicity, calcium excitotoxicity and oxidative injury. Glutathione (GSH) serves to provide reducing equivalents for the maintenance of oxidant homeostasis, and also plays roles in intracellular and intercellular signaling in the...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2003.01691.x
更新日期:2003-04-01 00:00:00
abstract::The ontogenesis of alpha 2-adrenoceptors and GTP-binding proteins and their coupling activity were investigated in telencephalon membranes of developing rats. The manganese-induced elevation of [3H]clonidine binding was increased in an age-dependent manner but the guanosine 5'-O-(3-thio)triphosphate-induced decrease i...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1989.tb07321.x
更新日期:1989-07-01 00:00:00
abstract::We applied our in vivo fatty acid method to examine concentrations, incorporation, and turnover rates of docosahexaenoic acid (22:6 n-3) in brains of rats subject to a dietary deficiency of alpha-linolenic acid (18:3 n-3) for three generations. Adult deficient and adequate rats of the F3 generation were infused intrav...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2000.0752392.x
更新日期:2000-12-01 00:00:00
abstract::This Editorial highlights a study by Baglietto-Vargas et al. 2015 published in this issue of J. Neurochem. Stress is one of the environmental factors that can contribute to Alzheimer's disease pathogenesis. However, the role of modern-life stress has not been investigated yet. The authors reveal that modern-life stres...
journal_title:Journal of neurochemistry
pub_type: 评论,社论
doi:10.1111/jnc.13210
更新日期:2015-09-01 00:00:00
abstract::Beta-amyloid peptides (A beta) are deposited in an aggregated fibrillar form in both diffuse and senile plaques in the brains of patients with Alzheimer's disease. The neurotoxicity of A beta in cultured neurons is dependent on its aggregation state, but the factors contributing to aggregation and fibril formation are...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1998.70031182.x
更新日期:1998-03-01 00:00:00
abstract::Cultures of chromaffin cells isolated from the bovine adrenal medulla have been extremely useful for investigating secretory mechanisms, but such cultures used up to the present time represent mixed populations of adrenergic and noradrenergic cells. This report describes how, with slight modifications to standard proc...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1991.tb03761.x
更新日期:1991-08-01 00:00:00
abstract::Bradykinin, a mediator of inflammation, is produced in the brain during trauma and stroke. It is thought to open the blood-brain barrier, although the mechanism is unclear. We have investigated, therefore, the effect of bradykinin on the expression of interleukin-6 (IL-6), a putative modulator of the blood-brain barri...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1999.0731461.x
更新日期:1999-10-01 00:00:00
abstract::The subcellular distribution of the ectoenzyme, 5'-nucleotidase, in cerebral cortex and cerebellum of the rat was studied both biochemically and cytochemically. The fractions were characterized biochemically by marker enzymes. The localization of 5'-nucleotidase activity was also investigated cytochemically in the mye...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1984.tb12832.x
更新日期:1984-10-01 00:00:00
abstract::Frame-shifted amyloid precursor protein (APP(+1)), which has a truncated out-of-frame C-terminus, accumulates in the neuropathological hallmarks of patients with Alzheimer's disease pathology. To study a possible involvement of APP(+1) in the pathogenesis of Alzheimer's disease, we expressed APP695 and APP(+1) in the ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2004.02528.x
更新日期:2004-08-01 00:00:00
abstract::The effect of selective inhibition of monoamine oxidase (MAO) subtypes A and B on striatal metabolism of DOPA to dopamine (DA), 3,4-dihydroxyphenylacetic acid (DOPAC), and 4-hydroxy-3-methoxyphenylacetic acid (homovanillic acid; HVA) was studied in halothane-anesthetized rats 3 weeks after unilateral 6-hydroxydopamine...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1995.65031213.x
更新日期:1995-09-01 00:00:00
abstract::Edaravone (Eda) is a potent scavenger of hydroxyl radicals and has been demonstrated to be beneficial for patients with acute ischemic stroke. This study was set out to investigate whether Eda protect against MPP(+)-induced cytotoxicity in rat primary cultured astrocytes. The results showed that pre-treatment with Eda...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2008.05573.x
更新日期:2008-09-01 00:00:00
abstract::In vitro studies indicate that p42/p44MAPK phosphorylate both nuclear and cytoplasmic proteins. However, the functional targets of p42/p44MAPK activation in vivo remain unclear. To address this question, we localized activated p42/p44MAPK in hippocampus and cortex and determined their signaling effects after electroco...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1998.70020558.x
更新日期:1998-02-01 00:00:00
abstract::Kainate receptors (KARs) have been described as modulators of synaptic transmission at different synapses. However, this role of KARs has not been well characterized in the amygdala. We have explored the effect of kainate receptor activation at the synapse established between fibers originating at medial geniculate nu...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2012.07665.x
更新日期:2012-04-01 00:00:00
abstract::This study evaluated the developmental gene and protein expression of proton-coupled oligopeptide transporters (POTs: peptide transporter, PepT1 and PepT2; peptide-histidine transporter, PhT1 and PhT2) in different regions of rodent brain, and the age-dependent uptake of a POT substrate, glycylsarcosine (GlySar), in b...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.12687
更新日期:2014-06-01 00:00:00
abstract::The suprachiasmatic nucleus houses the central circadian clock and is characterized by the timely regulated expression of clock genes. However, neurons of the cerebellar cortex also contain a circadian oscillator with circadian expression of clock genes being controlled by the suprachiasmatic nucleus. It has been sugg...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.14128
更新日期:2017-09-01 00:00:00
abstract::Adult neurogenesis was first observed nearly 60 years ago, and it has since grown into an important neurochemistry research field. Much recent research has focused on the treatment of brain diseases through neuronal regeneration with endogenously generated neurons. In the adult brain, immature neurons called neuroblas...
journal_title:Journal of neurochemistry
pub_type: 杂志文章,评审
doi:10.1111/jnc.14002
更新日期:2017-06-01 00:00:00
abstract::Protein synthesis in the brain is known to be affected by a wide range of treatments. The detailed analysis of the mechanisms that are involved would be facilitated by the development of cell-free translation systems derived from brain tissue. To date, brain cell-free systems have not been fully characterized to demon...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1981.tb01696.x
更新日期:1981-03-01 00:00:00
abstract::Transient exposure to ethanol (EtOH) results in a massive neurodegeneration in the developing brain leading to behavioral and cognitive deficits observed in fetal alcohol syndrome. There is now compelling evidence that K+ channels play an important role in the control of programmed cell death. The aim of the present w...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2009.06197.x
更新日期:2009-08-01 00:00:00