Abstract：
:Choline acetyltransferase activity was detected in extensively washed membranes prepared from rat and guinea pig synaptosomes. When these preparations were treated with the non-ionic detergent Triton X-114 and heated to 37 degrees C to cause phase separation, a significant percentage was found to associate with the detergent-rich phase, indicating that the enzyme might be an integral membrane-bound protein. In guinea pigs receiving septal lesions, a large reduction in both total and in Triton X-114-extractable choline acetyltransferase in hippocampal synaptosomes was observed indicating that the detergent-extracted form is associated with cholinergic nerve terminals. When membrane-bound choline acetyltransferase from lysed, washed synaptosomes was incubated in Triton X-114, 30% of the membrane-associated enzyme could be extracted into the detergent-rich phase. This extraction could be improved by reducing the chloride content of the extraction medium. When the chloride content of synaptosomes, prepared from rat cerebral cortex, was manipulated, by either exposure to ?-aminobutyric acid, muscimol or to a medium containing reduced levels of chloride, the ability of antibodies against choline acetyltransferase to specifically immunolyse (in the presence of complement) the cholinergic synaptosome population was enhanced. These results suggest that the choline acetyltransferase found in the nerve terminal region exists in at least two forms (a soluble and a lipophilic form) which are partially interconvertible. The conversion between the two forms can be influenced by chloride ions.
journal_name
Neurochem Intjournal_title
Neurochemistry internationalauthors
Docherty M,Bradford HFdoi
10.1016/0197-0186(88)90111-8subject
Has Abstractpub_date
1988-01-01 00:00:00pages
119-27issue
1eissn
0197-0186issn
1872-9754pii
0197-0186(88)90111-8journal_volume
13pub_type
杂志文章abstract：:Alzheimer's disease as well as prion-related encephalopathies are neurodegenerative disorders of the central nervous system, which cause mental deterioration and progressive dementia. Both pathologies appear to be primarily associated with the pathological accumulation and deposit of β-amyloid or prion peptides in the...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2011.01.019
更新日期：2011-05-01 00:00:00
abstract：:A single molecular species of GTP-binding protein (G protein) has been purified from the bovine cerebral cortex. The immunoblot analysis indicated that the isolated G protein might be Gi1 or Gi2 but not Go, since it was reacted by specific antibodies, anti-Gi alpha 1-2 and anti-Gi alpha 1-1, but not anti-Go alpha. Whe...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(96)00138-6
更新日期：1997-07-01 00:00:00
abstract：:Vascular bed calcification is a common feature of ends stage renal disease that may lead to a complication in cardiovascular and cerebrovascular beds, which is a promoting cause of myocardial infarction, stroke, dementia and aneurysms. Sodium thiosulfate (STS) due to its multiple properties such as antioxidant and cal...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2015.09.004
更新日期：2015-11-01 00:00:00
abstract：:The results of the present study showed the presence of a high-affinity and saturable binding of [3H]-ketanserin to frontal and parietal brain membranes obtained postmortem from bipolar, depressed, schizophrenic patients and normal controls. The human brain samples (60 frontal cortex and 51 parietal cortex), were dona...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(02)00093-1
更新日期：2003-05-01 00:00:00
abstract：:The present studies were performed in order to examine the possible role of cyclic GMP-stimulated phosphodiesterase (cGMP-PDE) activity in the inhibitory action of the inflammatory peptide bradykinin on cyclic AMP (cAMP) accumulation in D384 cells. Bradykinin decreased the forskolin-stimulated cAMP accumulation in the...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(92)90149-l
更新日期：1992-09-01 00:00:00
abstract：:A significant loss of dopamine was found in rat striatal slices incubated with 1-methyl-4-phenylpyridinium ion (MPP+) at a concentration of 2 microM or higher. The addition of 7-nitroindazole, a specific inhibitor of neuronal nitric oxide synthase (nNOS), prevented this effect on dopamine when the concentration of MPP...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(05)80006-3
更新日期：1998-07-01 00:00:00
abstract：:Various populations of bovine adrenal chromaffin cells were isolated first by successive digestions with collagenase (original cell preparation) followed by sedimentation through a stepwise bovine serum albumin gradient (cell layers I, II and III). At the fine structural level, the ratios between the number of adrenal...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(83)90114-6
更新日期：1983-01-01 00:00:00
abstract：:Alzheimer's disease (AD) is defined both by its progressive cognitive deterioration and hallmark increase in neuronal Aβ plaque formation. However, many of the underlying neurobiological facets of this disease are still being elucidated. Previous research has demonstrated that production of neuronal hydrogen sulfide (...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2014.01.004
更新日期：2014-02-01 00:00:00
abstract：:The present experiments investigated the effect of a neurotoxin purified from the venom of the spider Phoneutria nigriventer. This toxic component, P. nigriventer toxin 3-6 (PnTx3-6), abolished Ca(2+)-dependent glutamate release with an IC(50) of 74.4nM but did not alter Ca(2+)-independent secretion of glutamate when ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(02)00130-4
更新日期：2003-03-01 00:00:00
abstract：:The discovery of nonsynaptic communication in the 1960s and 1970s was an important milestone in investigating the function of the nervous system, and it revolutionized our view about information transmission between neurons. In addition, nonsynaptic communication has a practical importance not only within the nervous ...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2007.06.001
更新日期：2008-01-01 00:00:00
abstract：:E1 mice are an animal model of human epilepsy (idiopathic complex partial seizures). We have previously demonstrated abrupt poly(A)(+) RNA expression in liver from 1-day-old E1 mouse [Mita et al., 1991. Devl. Brain Res. 64, 27-35]. In the present study, we constructed a cDNA library of the poly(A)(+) RNA. By analyzing...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(00)00089-9
更新日期：2001-04-01 00:00:00
abstract：:The transmitter dopamine and the protein acetylcholinesterase are released within the substantia nigra from the dendrites of nigrostriatal neurons. These phenomena do not correspond to the familiar events involved in information transfer at the classic axons synapse. It is possible that both dopamine and acetylcholine...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(85)90136-6
更新日期：1985-01-01 00:00:00
abstract：:Copper is an essential element that is required for a variety of important cellular functions. Since not only copper deficiency but also excess of copper can seriously affect cellular functions, the cellular copper metabolism is tightly regulated. In brain, astrocytes appear to play a pivotal role in the copper metabo...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2012.08.017
更新日期：2013-04-01 00:00:00
abstract：:Synaptic degeneration is one of the earliest hallmarks of Alzheimer disease (AD) and results in loss of cognitive function. One of the causative agents for the synaptic degeneration is the amyloid β-peptide (Aβ), which is formed from its precursor protein by two sequential cleavages mediated by β- and γ-secretase. We ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2012.03.016
更新日期：2012-07-01 00:00:00
abstract：:Astrocytes, besides supporting metabolic and scaffolding functions, play a prominent role in the modulation of neuronal communication. In particular, they are responsible for clearing synaptically-released glutamate via highly specific transporters located on their plasma membrane. Since glutamate is the main excitato...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2003.07.005
更新日期：2004-07-01 00:00:00
abstract：:The effects of membrane lipid disturbances induced by ischemia and exogenously added lipids on the uptake of GABA and Ca(2+) were investigated in gerbil brain synaptosomes. Ischemia was produced by bilateral ligation of common carotid arteries in Mongolian gerbil for 10 min. The level of the free fatty acids (FFA) inc...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(86)90101-4
更新日期：1986-01-01 00:00:00
abstract：:The consequences of irreversibly-inhibiting D2 dopaminergic receptors on the expression of D1 and D2 dopamine receptor mRNAs and proenkephalin mRNA and on the levels of mu- and delta-opioid receptors in rat striatum were studied following single or repeated administration of the irreversibly-acting D2 dopamine recepto...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(94)90143-0
更新日期：1994-10-01 00:00:00
abstract：:Marked age-related changes are noted in the neurotensin distribution of the human hippocampus. Different neuronal structures containing neurotensin are detected by immunohistochemistry during postnatal brain growth from birth to 4 years but no later. They are the neurotensin-immunoreactive pyramidal cells of the subic...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(89)90114-9
更新日期：1989-01-01 00:00:00
abstract：:Differentiating granule cells develop survival requirements in vitro which can be met by treatment with high K+ or excitatory amino acids. Promotion of cell survival by N-methyl-D-aspartate (NMDA) or kainate has already been established and here we report that treatment of the cells with alpha-amino-3-hydroxy-5-methyl...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(94)90067-1
更新日期：1994-09-01 00:00:00
abstract：:Glycine transporter GlyT1 plays important role in maintaining accurate glycine concentration in local brain microenvironment. Transporting efficiency of GlyT1 is strongly affected by the state of its distal C-terminus, which regulates transporter trafficking and cellular surface density. Using selected range of antibo...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2010.06.003
更新日期：2010-10-01 00:00:00
abstract：:Nitrite therapy is more effective in cerebral ischemia when administered earlier. It would be beneficial during the hyperacute stages of stroke if the nitrite effect is demonstrated in intracerebral hemorrhage (ICH). When nitrite is injected intravenously 3h after ICH induction in rats, most doses of nitrite provided ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2011.05.018
更新日期：2011-08-01 00:00:00
abstract：:To elucidate the role of Ca(2+)-activated K(+) (K(Ca)) channels in the presynaptic acetylcholine (ACh) release from splanchnic nerve endings and the postsynaptic catecholamine release from chromaffin cells, we applied microdialysis technique to the left adrenal medulla of anesthetized rats and investigated the effects...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2009.10.010
更新日期：2010-01-01 00:00:00
abstract：:Amyloid deposition within the brains of Alzheimer's Disease patients results in the activation of microglial cells and the induction of a local inflammatory response. The interaction of microglia or monocytes with beta-amyloid (A beta) fibrils elicits the activation a complex tyrosine kinase-based signal transduction ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(01)00052-3
更新日期：2001-11-01 00:00:00
abstract：:Neural stem (NS) cells are multipotent cells defined by their capacity to proliferate and differentiate into all neuronal and glial phenotypes. NS cells can be obtained from specific regions of the adult brain, or generated from embryonic stem cells (ESCs). NS cells differentiate into neural progenitor (NP) cells and ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2011.04.002
更新日期：2011-09-01 00:00:00
abstract：:The dopaminergic projection from the substantia nigra to the neostriatum is vulnerable to several neurotoxins including 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), amphetamine, and 5-hydroxydopamine. We have treated rats or mice with these agents and examined various regions of their brains with a combination...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/0197-0186(94)00110-g
更新日期：1995-02-01 00:00:00
abstract：:Iron accumulation is considered to be involved in the pathogenesis of Parkinson's disease. To demonstrate the relationship between peripheral iron overload and dopaminergic neuron loss in rat substantia nigra (SN), in the present study we used fast cyclic voltammetry, tyrosine hydroxylase (TH) immunohistochemistry, Pe...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2007.03.006
更新日期：2007-07-01 00:00:00
abstract：:There has been limited success with blood-based biomarkers of neurodegeneration. One perceived reason is that blood has no direct contact to the brain. Recently developed blood-based biomarkers of tau-degradation have shown promise as potential tools for peripheral assessment of neurodegeneration; however, factors con...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2017.05.002
更新日期：2017-09-01 00:00:00
abstract：:The 12/15-lipoxygenase (12/15-LOX) enzymes react with polyunsaturated fatty acids producing active lipid metabolites that are involved in plethora of human diseases including neurological disorders. A great many of elegant studies over the last decades have contributed to unraveling the mechanism how 12/15-lipoxygenas...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2018.04.002
更新日期：2018-09-01 00:00:00
abstract：:The onset of attention-deficit-hyperactivity-disorder (ADHD) in childhood is characterized by developmentally inappropriate levels of hyperactivity, impulsivity and inattention. A chronic deficit of serotonin (5-HT) at the synapse may trigger symptoms of ADHD. This review focuses on neuro-anatomical, experimental and ...
journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2015.02.001
更新日期：2015-03-01 00:00:00
abstract：:The effects of ?-amino-n-butyric acid (GABA), (+)bicuculline, isoguvacine and 3-(4-chlorophenyl)-4-aminobutyrate [(+/-)baclofen] on the K-induced release of [(3)H]acetylcholine (ACh) were studied in the superior cervical ganglia of the rat in vitro. GABA and isoguvacine inhibited [(3)H]ACh release and these inhibition...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(86)90193-2
更新日期：1986-01-01 00:00:00
