Abstract：
:Although the cerebral cortical dopamine D(1) receptor is considered to play a role in normal and abnormal brain function, little information is available on its characteristics in human brain. We compared dopamine-stimulated adenylyl cyclase (AC) activity in homogenates of cerebral cortex (frontal, temporal, parietal, occipital and cingulate cortex) of autopsied brain of neurologically normal subjects to that in striatum. Cerebral cortical AC activity was modestly and dose-dependently stimulated by dopamine (maximal 20-30%) with low microM EC50s and such stimulation was inhibited by the selective dopamine D1 receptor antagonist SCH23390. The magnitude of the maximal stimulation by dopamine was similar in autopsied and biopsied cerebral cortex. The extent of maximal stimulation was similar to that in dopamine-rich striatum (caudate, putamen and nucleus accumbens), despite much lower density of dopamine D1 receptors in cerebral cortex vs. striatum. The EC50 for dopamine stimulation in cerebral cortex (approximately 1 microM) was lower than that for caudate and putamen (approximately 3 microM). No detectable dopamine stimulation was observed in cerebellar cortex, thalamus or hippocampus. Dopamine stimulation in both cerebral cortex and striatum was independent of calcium activation. We conclude that dopamine stimulated AC can be measured in cerebral cortex of human brain allowing for the possibility that this process can be examined in human brain disorders in which dopaminergic abnormalities are suspected.
journal_name
Neurochem Intjournal_title
Neurochemistry internationalauthors
Tong J,Ross BM,Sherwin AL,Kish SJdoi
10.1016/s0197-0186(01)00016-xsubject
Has Abstractpub_date
2001-08-01 00:00:00pages
117-25issue
2eissn
0197-0186issn
1872-9754pii
S0197-0186(01)00016-Xjournal_volume
39pub_type
杂志文章abstract：:We demonstrated that genetically modified fibroblasts can be encapsulated into biocompatible, biodegradable spheres retaining their viability and capacity to continuously secrete nerve growth factor (NGF) for at least two months. Genetically engineered rat fibroblasts producing NGF were encapsulated in an alginate-pol...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(93)90089-n
更新日期：1993-08-01 00:00:00
abstract：:Bindings of glutamate receptor agonists and related modulators were investigated in 10 discrete tissues from gerbil brain using a biochemical technique. There appeared considerable discrepancies, in respect of intrahippocampal profiles, from reported data by autoradiography on rat brain. In the gerbil, an almost equiv...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(93)90066-e
更新日期：1993-01-01 00:00:00
abstract：:Diisopropyl phosphorofluoridate (DFP) produces Type I organophosphorus compound-induced delayed neurotoxicity (OPIDN) in adult female chickens. We have proposed that calcium/calmodulin protein kinase II (CaM kinase II) plays a role in the development of OPIDN by increasing the phosphorylation of cytoskeletal proteins....
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(93)90009-t
更新日期：1993-02-01 00:00:00
abstract：:Control of serotonin release and synthesis by amino acid neurotransmitters was investigated in rat rostral and caudal rhombencephalic raphe cells in primary cultures respectively. Endogenous amounts of taurine, glycine, GABA and glutamate were measured in both types of cultures. These amino acids were spontaneously re...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(93)90118-o
更新日期：1993-09-01 00:00:00
abstract：:In the present study we have investigated the relationship between serotonergic receptor(s) (5-HTR) and muscarinic cholinergic receptor (mAChR) activation, leading to the arachidonic acid (AA) release and inositol phosphates (IPs) formation in adult and aged brain cortex synaptoneurosomes. It was observed that seroton...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(95)00001-o
更新日期：1995-06-01 00:00:00
abstract：:The effect of subcutaneous injections of saline (0.9% NaCl, 10-40 ?l/g b. wt) to 5- and 20-day old rats on the concentrations of tyrosine (Tyr) and tryptophan (Trp) in the serum and the brain and on the levels of biogenic amines and their metabolites in the developing brain at 6 h p.i. is described. At day 5 the conce...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(85)90071-3
更新日期：1985-01-01 00:00:00
abstract：:In the present study, we investigated the neuroprotective role of p38 inhibition on experimental stroke in rats. p38 inhibition treatment alleviated the brain infarction volume and neurological deficits following ischemia, promoted the activation of Extracellular signal-regulated kinases (ERK1/2), suppressed the activ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2015.06.010
更新日期：2015-11-01 00:00:00
abstract：:Receptors for transmitters, as varied as those expressed by neurons, have been described on primary astrocyte cultures prepared from new-born rats and mice. A variety of functional effects and considerable cell-to-cell and regional heterogeneity have been observed for such receptors in vitro. The various systems avail...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/0197-0186(94)00118-e
更新日期：1995-01-01 00:00:00
abstract：:Electroacupuncture has been shown to induce a preconditioning effect in the brain. The mechanisms for this protection are not fully elucidated. We hypothesize that this protection is mediated by excitatory amino acid transporters (EAATs) that have been shown to be neuroprotective. To test this hypothesis, two-month ol...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2013.06.017
更新日期：2013-10-01 00:00:00
abstract：:Acetylcholinesterase release in the guinea-pig substantia nigra has been previously investigated 'on-line', using a sensitive chemiluminescent system. Since histological observations suggest that there is a difference in acetylcholinesterase distribution in the rat substantia nigra compared to that of the guinea-pig, ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(96)00057-5
更新日期：1996-12-01 00:00:00
abstract：:Traumatic brain injury (TBI) is one of the major cause of morbidity and mortality and it affects more than 1.7 million Americans each year. Depending on its location and severity, TBI leads to structural and functional damage in several parts of the brain such as cranial nerves, optic nerve tract or other circuitry in...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2017.01.019
更新日期：2017-12-01 00:00:00
abstract：:Deficiency of 5-methyltetrahydrofolate (5-MTHF) in cerebrospinal fluid (CSF) is associated with a number of neurometabolic conditions including mitochondrial electron transport chain defects. Whilst failure of the active transport of 5-methyltetrahydrofolate (5-MTHF) into the CSF compartment has been proposed as a pot...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2013.10.002
更新日期：2013-12-01 00:00:00
abstract：:Glutaminase mediates the recycling of neurotransmitter glutamate, supporting most excitatory neurotransmission in the mammalian central nervous system. A constitutive heterozygous reduction in GLS1 engenders in mice a model of schizophrenia resilience and associated increases in Gln, reductions in Glu and activity-dep...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2019.104508
更新日期：2019-10-01 00:00:00
abstract：:Lithium is well established as a treatment of manic-depressive illness. As for the mechanism of action of lithium, it is proposed that lithium has effects on intracellular calcium ion (Ca2+) movement. But there are few reports in which the effects of lithium on intracellular Ca2+ movement are observed in the mammalian...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(94)00130-m
更新日期：1995-03-01 00:00:00
abstract：:The Mg(2+)-ATPase associated with highly purified cholinergic synaptic vesicles isolated from the Torpedo electric organ can be activated by millimolar concentrations of Ca(2+) only to a maximum of 46%. ATP is hydrolyzed in preference to other tri-nucleotides on Mg(2+)-activation but not on Ca(2+)-activation of the en...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(87)90156-2
更新日期：1987-01-01 00:00:00
abstract：:The worldwide prevalence of stroke continues to rise despite recent successes in treating acute ischemic stroke. With limited patient eligibility and associated risk of tPA and mechanical thrombectomy, new preventive and therapeutic modalities are needed to stave the rising wave of stroke. Inflammation plays a key rol...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2016.10.007
更新日期：2017-07-01 00:00:00
abstract：:Sodium- and energy-dependent accumulation of [(3)H]l-glutamic acid (Glu) into rat cerebral cortical slices was inhibited by relatively high concentrations (40-100 ?M) of calmodulin antagonists, such as N-(6-aminohexyl)-1-naphthalenesulfonamide and N-(6-aminohexyl)-5-chloro-1-naphthalenesulfonamide, in concentration-de...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(89)90071-5
更新日期：1989-01-01 00:00:00
abstract：:The immunostains of GD3, c-pathway polysialogangliosides and gangliotetraosylgangliosides belonging to the a- and b-pathways were analyzed in embryo optic lobe cells. Cells were cultured in serum free media with, and without, bovine brain ganglioside mixture (largely gangliotetraosylgangliosides). Control cells differ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(94)90110-4
更新日期：1994-04-01 00:00:00
abstract：:Previously we demonstrated that p53 mediates dopaminergic neurotoxicity via inducing mitochondrial burdens and proapoptotsis. However, little is known about the role of p53 in the excitotoxicity induced by psychostimulant, such as cocaine. Cocaine-induced kindling (convulsive) behaviors significantly increased p53 exp...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2018.12.017
更新日期：2019-03-01 00:00:00
abstract：:Prenatal exposure to diazepam (DZ), a positive allosteric modulator of the gamma-aminobutyric acid(A) (GABA(A)) receptor complex, exerts profound effects that become more evident during puberty and in many cases are sex-specific, suggesting that such exposure interferes with the activity of steroid hormones. Apart fro...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(02)00226-7
更新日期：2003-07-01 00:00:00
abstract：:The present study was carried out to clarify whether the imidazolines clonidine, moxonidine and cirazoline as well as the guanidine aganodine inhibit noradrenaline release in the rat and rabbit brain via imidazoline receptors, alpha 2-adrenoceptors and/or histamine H3 receptors. Slices or synaptosomes from the rat or ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(96)00045-9
更新日期：1997-01-01 00:00:00
abstract：:Nerve terminals from the head ganglia of Locusta migratoria were isolated by means of a modified microscale flotation technique. Enzymatic, ultrastructural and chemical analysis revealed that the synaptosomal fraction was highly enriched in well-preserved nerve endings containing almost no free mitochondria. Cholinerg...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(81)90035-8
更新日期：1981-01-01 00:00:00
abstract：:Local excitation of the hippocampus with N- methyl- d,l -aspartic acid caused a rapid release of specific proteins into the extracellular fluid. The proteins were recovered from the effluent of a small implanted tubing, permeable to macromolecules, and analyzed by sodium dodecyl sulphate electrophoresis. ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(86)90031-8
更新日期：1986-01-01 00:00:00
abstract：:Some biochemical and histological studies of Parkinson's disease patients' brains and 6-OHDA-lesioned rats suggest that dopaminergic dennervation of the striatum leads to the nitrergic system hypofunction in this structure. Hence, recently the modulation of nitric oxide (NO)- soluble guanylyl cyclase-cyclic GMP signal...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2013.09.021
更新日期：2013-12-01 00:00:00
abstract：:Sprague-Dawley rats exposed to uncontrollable shock can be separated by a subsequent shock escape test into two groups: a "helpless" (LH) group which demonstrates a deficit in escape behavior, and a "nonlearned helpless" (NLH) group which shows no escape deficit and acquires the escape response as readily as naive con...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(92)90065-y
更新日期：1992-07-01 00:00:00
abstract：:A purification procedure to obtain peroxisomes (microperoxisomes) from the brain of suckling rats is reported. A P2 fraction, (crude light mitochondria) frozen and thawed seven times, was subfractionated yielding a P4 fraction, 4-fold enriched in catalase activity with respect to the cytoplasmic extract S1. The P4 fra...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(93)90116-m
更新日期：1993-09-01 00:00:00
abstract：:A pre-requisite to understanding the physiological mechanisms of action of melatonin is the identification of the target sites where the hormone acts. The radioligand 2-[125I]iodo-melatonin has been used extensively to localize binding sites in both the brain and peripheral tissues. In general these binding sites have...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/0197-0186(94)90100-7
更新日期：1994-02-01 00:00:00
abstract：:Precise anatomical distribution of 5HT1 binding sites has been investigated in the nuclei raphe dorsalis, raphe centralis and locus caeruleus of the rat brain. An original pattern of distribution was observed in the raphe nuclei, closely correlated to the already known distribution of 5HT containing elements. This pat...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(85)90156-1
更新日期：1985-01-01 00:00:00
abstract：:Long term consequence of non-fatal overdose in people who use opioids are not well understood. The intermittent exposure to non-fatal overdose leads to a tauopathy that is often accompanied by abrogated neuroprotective response, abnormal amyloid processing and other pathologies. The scope and limitations of available ...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2020.104936
更新日期：2020-12-10 00:00:00
abstract：:There is experimental evidence from radioligand binding experiments for the existence of strong antagonistic interactions between different subtypes of adenosine and dopamine receptors in the striatum, mainly between adenosine A1 and dopamine D1 and between adenosine A2A and dopamine D2 receptors. These interactions s...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(99)00008-x
更新日期：1999-03-01 00:00:00
