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+ was between 2-5 microM, but not at higher concentrations. This protection was reproduced with other less specific NOS-inhibitors, such as nitro-arginine and nitro-arginine methylester. 7-nitroindazole did not protect against the dopamine depletion caused by the non-specific mitochondrial chain blocker rotenone. Neither MPP- nor rotenone significantly increased the nitrite concentration in striatal slices, measured as an index of nitric oxide production. The basal production of nitric oxide may be enough to trigger the dopamine depletion at very low concentrations of MPP+, probably acting synergistically with cytosolic calcium increase. Higher concentrations of MPP+ are toxic by themselves without the mediation of nitric oxide. The inhibition of nNOS may protect against dopamine loss at early stages of a neurodegenerative process, and it could then be considered in the treatment or prevention of neurodegenerative human processes such as Parkinson's disease.
journal_name
Neurochem Intjournal_title
Neurochemistry internationalauthors
Cutillas B,Espejo M,Ambrosio Sdoi
10.1016/s0197-0186(05)80006-3subject
Has Abstractpub_date
1998-07-01 00:00:00pages
35-40issue
1eissn
0197-0186issn
1872-9754journal_volume
33pub_type
杂志文章abstract：:The rat retinal ganglion cell (RGC) line RGC-5 constitutes a widely used model for studying physiological processes in retinal cells. In this paper we investigated the expression of clock and immediately early genes, and calcium mediated responses to physiological stimuli in differentiated and mitotically active RGC-5...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2010.05.013
更新日期：2010-10-01 00:00:00
abstract：:Chronic variate stress was seen to decrease the ingestion of sweet food when compared to control rats. Brain monoamines are known to be involved in the control of food intake, serotonin appears to be involved in the mechanisms of satiety, and dopamine in mediating appetite or approach behaviors triggered by incentive ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(02)00080-3
更新日期：2003-01-01 00:00:00
abstract：:Zinc transporter 3 (ZNT3) has been shown to transport zinc ions from the cytosol into presynaptic vesicles in the mammalian brain. Several studies have stated that the zinc ion containing synaptic vesicles of zinc-enriched neurons (ZEN) are loaded with ZNT3 proteins in their membranes. This fact makes it possible to t...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2008.02.008
更新日期：2008-06-01 00:00:00
abstract：:Age is the leading risk factor for many of the most prevalent and devastating diseases including neurodegenerative diseases. A number of herbal medicines have been used for centuries to ameliorate the deleterious effects of ageing-related diseases and increase longevity. Oxidative stress is believed to play a role in ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2012.08.018
更新日期：2013-04-01 00:00:00
abstract：:There is a growing body of evidence on the role of nitric oxide (NO) in retinal physiology. Recently, interest has developed in the functional role of an alternative redox form of NO, namely nitroxyl (HNO/NO(-)), because it is formed by a number of diverse biochemical reactions. The aim of the present report was to co...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2007.04.015
更新日期：2007-11-01 00:00:00
abstract：:Lipid peroxidation has many deleterious effects on cells, and in the nervous system is considered to be involved in the pathogenesis of neurodegenerative diseases. To suppress lipid peroxidation, cells have various defense systems such as glutathione and thioredoxin, and defects in these defense systems will result in...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2010.04.015
更新日期：2010-09-01 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：:Phenylalanine and its phenyl metabolites produced a clear inhibition of chick brain mevalonate 5-pyrophosphate decarboxylase, while mevalonate kinase and mevalonate 5-phosphate kinase were not significantly affected. Phenolic derivatives produced a similar or higher inhibition than that found in the presence of phenyl...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(91)90182-d
更新日期：1991-01-01 00:00:00
abstract：:This paper describes the background in experiment and theory on which present-day studies of the biochemistry of learning and memory are based. It then reviews specifically the use of passive avoidance training in the day-old chick as a model for the analysis of the cellular events associated with memory-formation. It...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(89)90055-7
更新日期：1989-01-01 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：:Previously we have demonstrated the presence of presynaptic nicotinic acetylcholine receptors on the terminals of myenteric neurons in Auerbach's plexus of guinea-pig ileum. During these studies we observed, that the presence of hemicholinium-3, an inhibitor of the high affinity choline uptake significantly influences...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2006.03.001
更新日期：2006-09-01 00:00:00
abstract：:Na+-dependent uptake of excitatory neurotransmitter glutamate in astrocytes increases cell energy demands primarily due to the elevated ATP consumption by glutamine synthetase and Na+, K+-ATPase. The major pool of GLAST/EAAT1, the only glutamate transporter subtype expressed by human fetal astrocytes in undifferentiat...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2006.12.015
更新日期：2007-06-01 00:00:00
abstract：:Cyclooxygenase 2 inhibitors (COX 2) such as parecoxib (par) and valdecoxib (val) are used in the treatment of neuropathic pain. Using the radioligand binding assay it was demonstrated that both the prodrug par as well as its active metabolite val have a specific affinity to the cannabinoid (CB) receptor measured in CB...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2010.10.018
更新日期：2011-01-01 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 objectives of this study are to identify the mechanism of mitochondrial dysfunction during cerebral ischemic/reperfusion (I/R) injury and the therapeutic potential of tetrahydrocurcumin (THC) to mitigate mitochondrial dysfunction in experimental stroke model. In our study, 8-10 weeks old male C57BL/6 wild-type mic...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2018.11.015
更新日期：2019-01-01 00:00:00
abstract：:Neurodegenerative disorders are strongly associated with oxidative stress, which is induced by reactive oxygen species including hydrogen peroxide (H₂O₂). Epidemiological studies have suggested that coffee may be neuroprotective, but the molecular mechanisms underlying this effect have not been clarified. In this stud...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2012.02.004
更新日期：2012-04-01 00:00:00
abstract：:Growing evidence suggests that α-lipoic acid (LA) has neuroprotective effects in various pathological conditions including brain ischemia and neurodegeneration. While anti-oxidative activity has been thought to play a central role in LA-mediated neuroprotection, the precise mechanism and the effect of LA enantiomers (...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2011.09.005
更新日期：2011-12-01 00:00:00
abstract：:Long-term (12 h) incubation of NCB-20 neuroblastoma x Chinese hamster brain cell hybrid cells with phorbol dibutylate caused a decrease in the enzyme activity of protein kinase C (PKC). Under these conditions, the formation of inositol 1,4,5-trisphosphate [Ins(1,4,5)P(3)] and the mobilization of intracellular Ca(2+) t...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/0197-0186(91)90175-d
更新日期：1991-01-01 00:00:00
abstract：:Several glycoproteins in mammalian brains contain α2,8-linked disialic acid residues. We previously showed a constant expression of disialic acid (DiSia) in the hippocampus, olfactory bulb and cortex, and a gradual decrease of expression in the cerebellum from neonatal to senile mice. Previous publications indicate th...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2013.07.013
更新日期：2013-11-01 00:00:00
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journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2007.08.005
更新日期：2008-02-01 00:00:00
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journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2019.104564
更新日期：2019-12-01 00:00:00
abstract：:Taurine is found at millimolar concentration in the retina and retinal pigment epithelium. High concentrations of taurine are essential for maintenance of retinal function. Taurine uptake by retina and retinal pigment epithelium was significantly enhanced by physiological concentrations of insulin as well as by high g...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(99)00072-8
更新日期：1999-10-01 00:00:00
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journal_title：Neurochemistry international
pub_type： 杂志文章,评审
doi：10.1016/j.neuint.2012.05.007
更新日期：2012-07-01 00:00:00
abstract：:Gliotoxin (GT) is a hydrophobic fungal metabolite of the epipolythiodioxopiperazine group which reacts with membrane thiols. When added to a suspension of energized brain mitochondria, it induces matrix swelling of low amplitude, collapse of membrane potential (DeltaPsi), and efflux of endogenous cations such as Ca2+ ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2004.01.001
更新日期：2004-10-01 00:00:00
abstract：:The effects of hypoxia on the metabolism of the central nervous system were investigated in rats submitted to a low oxygen atmosphere (8% O(2); 92% N(2)). [1-(13)C]glucose and [2-(13)C]acetate were used as substrates, this latter being preferentially metabolized by glial cells. After 1-h substrate infusion, the incorp...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(00)00106-6
更新日期：2001-04-01 00:00:00
abstract：:The effects of the peroxovanadium complex potassium bisperoxo(1,10-phenanthroline)-oxovanadate (bpV[phen]) have been studied on dopamine (DA) exocytosis in PC12 cells. Bisperoxo(1,10-phenanthroline)-oxovanadate does not elicit dopamine secretion in PC12 cells. However, treatment of PC12 cells with 30 microM bpV[phen] ...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(01)00093-6
更新日期：2002-04-01 00:00:00
abstract：:Dyskinesia is frequently seen in neurological disorders affecting the basal ganglia. Iminodipropionitrile (IDPN) produces a somewhat similar motor syndrome in rodents, one that is a possible model for dyskinesia. Because in previous studies the compound (N-[2-hydroxy-3-(1-piperidinyl) propoxy]-3 pyridine-carboximidoyl...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/s0197-0186(98)00058-8
更新日期：1998-12-01 00:00:00
abstract：:The inflammatory central nervous system response that involves activated microglia and reactive astrocytes may both heal and harm neurons, as inflammatory mediators lead to neuroprotection or excitation at one dose but to injury at a different concentration. To investigate these complex cellular interactions, L-trans-...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2006.06.008
更新日期：2006-12-01 00:00:00
abstract：:Gastrointestinal peptides and hormones are known to penetrate through the utero-placental barrier and regulate fetal development. In the present study, we tested permeation of maternal brain-derived neurotrophic factor (BDNF) to fetuses, using BDNF-gene deficient mice and exogenous BDNF administration. At embryonic da...
journal_title：Neurochemistry international
pub_type： 杂志文章
doi：10.1016/j.neuint.2008.11.005
更新日期：2009-02-01 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
