Abstract：
:The purpose of this study was to determine whether elevated levels of 3,4-dihydroxyphenylacetic acid (DOPAC), the major metabolite of dopamine (DA) in the brain, could decrease the DA content in the striatum. Levels of DA were determined by high pressure liquid chromatography with electrochemical detection (HPLC-EC) in the striatum of male rats 24 h following a single intracerebral administration of DOPAC into the right striatum. DOPAC at 16.8 micrograms reduced the DA content of the infused side by 17%, p = 0.01. In contrast, infusion of 1.68 micrograms of DOPAC or the vehicle had no effect on striatal DA levels. Coapplication of the antioxidant, ascorbic acid, at 0.2 mg/ml with 16.8 micrograms of DOPAC prevented the decrease in DA content. Furthermore, infusion of 18.2 micrograms of homovanillic acid (HVA), the product of DOPAC methylation, had no effect on striatal DA. These results indicate that DOPAC may undergo autoxidation in vivo to produce neurotoxic species which may result in reduction of striatal DA. Formation of such an autoxidation product(s) of endogenous DOPAC was verified in the extracellular fluid of striatal slices in vitro.
journal_name
Brain Res Bulljournal_title
Brain research bulletinauthors
Shiekhattar R,Ghasemzadeh MB,Adams RNdoi
10.1016/0361-9230(92)90161-pkeywords:
subject
Has Abstractpub_date
1992-12-01 00:00:00pages
891-6issue
6eissn
0361-9230issn
1873-2747pii
0361-9230(92)90161-Pjournal_volume
29pub_type
杂志文章abstract：:This study analyzed the projection neurons of the anterior subdivision of the rat basolateral amygdaloid nucleus (BLa) by correlating the morphology of Golgi-stained neurons with the morphology of neurons that were retrogradely labeled by injections into the main terminal fields of BLa. In each animal multiple injecti...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(92)90177-y
更新日期：1992-02-01 00:00:00
abstract：:Bone marrow stromal cells (BMSCs) are promising donor cells for transplantation therapies for a variety of diseases. However, there still lack efficient ways to induce directional differentiation of BMSCs to promote their practical use in transplantation therapy. In this study, we constructed hybrid cells by transferr...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2011.11.001
更新日期：2012-02-10 00:00:00
abstract：:All the opiate-like peptides we tested (Met-enkephalin, (D-Ala2)-Met-enkephalin-NH2, beta-endorphin, (D-Ala2)-beta-endorphin, (D-Ala2)-alpha-endorphin, (D-Ala2)-gamma-endorphin) were capable of reducing distress vocalizations (DV's) in socially-isolated chicks when injected into the vicinity of the fourth ventricle in...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(78)90014-x
更新日期：1978-11-01 00:00:00
abstract：:The influence of gender and stage of the estrous cycle on the levels of acetylcholine, serotonin, and noradrenaline in the hippocampus and on the susceptibility of the cholinergic septo-hippocampal pathway to the neurotoxic effect of ethylcholine aziridinium (AF64A) was investigated in the rat. Levels of acetylcholine...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(93)90019-8
更新日期：1993-01-01 00:00:00
abstract：:The effects of amygdaloid norepinephrine depletion by 6-hydroxydopamine on changes in corticotropin releasing factor-41 (CRF-41) and serum adrenocorticotropic hormone (ACTH) and corticosterone levels, following neural stimuli were investigated. In intact animals, photic or acoustic stimulation caused CRF-41 depletion ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(96)00174-8
更新日期：1996-01-01 00:00:00
abstract：:Investigation of the differentiation of electrical properties of motoneurons has been stimulated by the importance of these neurons for embryonic behavior and facilitated by their experimental accessibility. In this review, we examine the development of different patterns of excitability and their functions, and discu...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/s0361-9230(00)00388-9
更新日期：2000-11-15 00:00:00
abstract：:Neuronal cell bodies in the medial terminal nucleus of the accessory optic system (MTN) were labeled with WGA-HRP which was injected ipsilaterally into the occipital cortex in the rat. We suggest that the label was first transported anterogradely to the pretectal nucleus of the optic tract, then moved transneuronally ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(87)90043-8
更新日期：1987-01-01 00:00:00
abstract：:Songbirds have emerged as extremely important animals for investigating sex steroid hormone effects on the central nervous system. The masculinizing effects of exogenous estrogen on the neural circuits controlling song in female zebra finches are well documented. There is evidence that estrogens are necessary for the ...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/s0361-9230(97)00215-3
更新日期：1997-01-01 00:00:00
abstract：:Evidence concerning the presence or absence of common neuronglia lineages in the postnatal mammalian central nervous system is still a matter of speculation. We address this problem using optic nerve explants, which show an extremely long survival in culture. Morphological, immunocytochemical and immunochemical method...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(92)90225-m
更新日期：1992-01-01 00:00:00
abstract：:Baroreceptor input plays a critical role in body fluid balance and the endocrine response to NaCl consumption [25]. Experiments were performed to characterize the alterations in salt intake that are seen after baroreceptor denervation. Using chronically baroreceptor denervated (SAD) or control (CON) male Sprague-Dawle...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(96)00234-1
更新日期：1997-01-01 00:00:00
abstract：:The olfactory bulbectomized (OBX) rat model of depression has been widely used in studies on the behavioral and neurochemical aspects of human depression. The objective of the present investigation was to assess open field (OF) activity and the brain regional 5-HT(1A) receptor densities of the sham operated (SHX) and ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2007.09.005
更新日期：2008-03-28 00:00:00
abstract：:Using microdialysis, the effects of endogenous dopamine on basal extracellular concentrations of gamma-aminobutyric acid (GABA) and on the increases of GABA produced by glutamate were investigated in the medial prefrontal cortex of the awake rat. The dopamine uptake inhibitor nomifensine (1, 100 and 1000 microM), used...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(00)00353-1
更新日期：2000-10-01 00:00:00
abstract：:Trans-2, 4-dimethoxystibene (S3) is a synthetic stilbenes. In the present study, S3 was investigated to assess its neuroprotective effect against the toxicity induced by Abeta(25-35) in hypercholesterolemic rats. Rats were fed with hypercholesterolemic chow for six weeks, and then received a single intracerebroventric...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2010.04.016
更新日期：2010-07-30 00:00:00
abstract：:We investigated the effects of mild hyperglycemia and insulin treatment on the metabolism of the ischemic brain in spontaneously hypertensive rats with acute hyperglycemia (n = 9), acute hyperglycemia treated with insulin during ischemia (n = 10), and normoglycemia (n = 10). Cerebral blood flow was measured by the H2 ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(96)00052-4
更新日期：1996-01-01 00:00:00
abstract：:The vertebrate neural tube consists of a series of neuromeres along its anteroposterior axis. Between amphioxus that possesses no neuromeres and gnathostomes, the lamprey occupies a critical position in the phylogeny for the origin of the segmented brain. To clarify the rhombomeric configuration of the Japanese lampre...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/s0361-9230(01)00669-4
更新日期：2002-02-01 00:00:00
abstract：:In tests of corticosterone production in vitro, aqueous pineal homogenate (APH) modulates the effect of a short-chain ACTH analogue, ACTH 1-17, added to adrenals from different circadian stages. Adrenal and pineal glands from female B6D2F1 mice, standardized on staggered LD 12:12 regimens, were obtained at the same cl...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(83)90060-6
更新日期：1983-07-01 00:00:00
abstract：:A microscope-enlarger is described which can be used to produce 20 cm by 25 cm negatives of histological sections at magnifications up to 1,000 diameters, without loss of image quality or reduction of resolution. Standard flat-field microscope optics are used, and the apparatus is adjustable for Koehler illumination. ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(76)90058-7
更新日期：1976-01-01 00:00:00
abstract：:To investigate nitric oxide production in the brain of the EL mouse, an inbred mutant strain of the ddY mouse that is susceptible to convulsive seizures, we measured whole brain nitric oxide metabolites, and counted the number of nitric oxide-producing cells in the parietal cortex and striatum. Nitric oxide metabolite...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(99)00194-x
更新日期：1999-11-01 00:00:00
abstract：:Bilateral inferior olive lesions, produced by systemic administration of the neurotoxin 3-acetylpyridine (3AP) produce a proconvulsant state specific for strychnine-induced seizures and myoclonus. We have proposed that these phenomena are mediated through increased excitation of cerebellar Purkinje cells, through acti...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(90)90118-j
更新日期：1990-10-01 00:00:00
abstract：:"Responder" Sprague-Dawley (SD) rats that were sensitive to electroacupuncture (EA) in an acute thermal pain test (i.e. tail flick latency [TFL] test) maintained sensitivity to EA in the warm allodynia test after peripheral nerve injury. Similarly, the "non-responder" SD rats that were insensitive to EA in the TFL tes...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2007.07.006
更新日期：2007-10-19 00:00:00
abstract：:The olfactostriatum is a portion of the basal ganglia of snakes situated ventromedially to the nucleus accumbens proper. It receives a major vomeronasal input from the nucleus sphericus, the primary target of accessory olfactory bulb efferents. Recently, the ophidian olfactostriatum has been characterized on the basis...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/j.brainresbull.2005.02.020
更新日期：2005-09-15 00:00:00
abstract：:Increasing evidence supports that dopamine (DA) plays an important role in the hippocampal function via activation of D1-like receptors (D1Rs). As the entry structure of the hippocampal formation, the hippocampal dentate gyrus (DG) is critically involved in spatial learning and memory. Despite a number of studies inve...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2018.11.010
更新日期：2019-01-01 00:00:00
abstract：:Three models of inducing spinal trauma in experimental animals--weight-dropping model, severance-by-knife model, and laceration-type-lesions model--are reviewed critically. Contributions by these models in understanding paraplegia in anatomical and pathological terms are brought out. Important distinctions between sub...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/0361-9230(89)90123-8
更新日期：1989-01-01 00:00:00
abstract：:In a previous study we showed that healthy highly hypnotizable subjects, during the suggestion of a moderately unpleasant situation administered in awake conditions, exhibited a sympathetic response greatly attenuated with respect to non-hypnotizable individuals. This was interpreted as a natural protection of hypnoti...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2005.12.003
更新日期：2006-03-31 00:00:00
abstract：:Neuronal nitric oxide synthase (nNOS) has been reported to be up-regulated in the hypothalamic supraoptic nucleus (SON) during dehydration which in turn could increase nitric oxide (NO) production and consequently affect arginine vasopressin (AVP) secretion. The anteroventral third ventricle (AV3V) region has strong a...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2011.07.020
更新日期：2011-10-10 00:00:00
abstract：:Inflammation and oxidative stress play an important role in cerebral ischemic pathogenesis. Polydatin has been proved to elicit numerous biological effects through its anti-inflammatory and anti-oxidant properties. However, little is known regard to the mechanism of polydatin's neuroprotection in ischemic stroke. We t...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2011.09.021
更新日期：2012-01-04 00:00:00
abstract：:Single-nucleotide polymorphism (SNP) and Alternative splicing (AS) were found to be implicated in certain diseases, nevertheless, the contributions of mRNA SNPs and AS to pathogenesis in developing rat brains with hypoxic-ischemic encephalopathy (HIE) remained largely vague. Additionally, the disease associated with T...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2019.11.001
更新日期：2020-01-01 00:00:00
abstract：:Interferon-alpha (IFN-alpha, 2.0 x 10(4) units) was bilaterally microinjected into the medial preoptic area and anterior hypothalamus in conscious rats treated 10 min prior with an opioid receptor antagonist, naloxone (NLX, 2 mg/kg, IM) or a prostaglandin synthetase inhibitor, acetaminophen (ACAP, 25 mg/kg, IM). The I...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(94)00259-2
更新日期：1995-01-01 00:00:00
abstract：:Serotonin transporter (SERT) and brain-derived neurotrophic factor (BDNF) are key modulators of molecular signaling, cognition and behavior. Although SERT and BDNF mutant mouse phenotypes have been extensively characterized, little is known about their self-grooming behavior. Grooming represents an important behaviora...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2012.08.004
更新日期：2012-12-01 00:00:00
abstract：:The medial preoptic area is a key structure in the neural control of reproduction. Considerable evidence has accumulated indicating that glutamatergic innervation of the area plays an important role in this control. Sources of the glutamatergic input are unknown. Present investigations were aimed at studying this ques...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(03)00180-1
更新日期：2003-08-30 00:00:00
