Abstract:
:Hydroxyl free radical production seems to play an important role in the pathogenesis of Parkinson's disease. In the present study, we investigated the dopamine agonists pramipexole and pergolide as well as the nitrone compound S-PBN (N-tert-butyl-alpha-(2-sulfophenyl)nitrone) to reduce hydroxyl radical formation. Microdialysis experiments were carried out in non-anaesthetized Wistar rats. Salicylate was incorporated into the perfusion fluid to measure indirectly hydroxyl radicals indicated by 2,3-dihydroxybenzoic acid (2,3-DHBA). Local perfusion with 0.2 or 2 nmol/2 microl/min 6-hydroxydopamine (6-OHDA) via the microdialysis probe significantly increased 2,3-DHBA levels 14-fold and 47-fold, respectively. Systemic application of either pergolide (0.05 mg/kg) or pramipexole (1 mg/kg) failed to significantly reduce 6-OHDA-induced hydroxyl radical production. In contrast, a 40 min pretreatment with pramipexole (2 and 10 nmol/2 microl/min via the probe) before onset of 6-OHDA perfusion, significantly attenuated 2, 3-DHBA levels compared with vehicle controls. S-PBN pretreatment (2 nmol/2 microl/min) was not effective to reduce 2,3-DHBA levels. In conclusion, pramipexole was able to reduce hydroxyl radical levels induced by 6-OHDA in vivo after local application. This property of pramipexole may be beneficial under conditions of enhanced hydroxyl radical formation in parkinsonian brains and may add to its well known dopamine D(2)-like receptor agonistic effects.
journal_name
Brain Resjournal_title
Brain researchauthors
Ferger B,Teismann P,Mierau Jdoi
10.1016/s0006-8993(00)02929-2subject
Has Abstractpub_date
2000-11-17 00:00:00pages
216-23issue
2eissn
0006-8993issn
1872-6240pii
S0006-8993(00)02929-2journal_volume
883pub_type
杂志文章相关文献
BRAIN RESEARCH文献大全abstract::Inhibitory GABAergic synaptic transmission in the mammalian hippocampus depends upon a hyperpolarized reversal potential for Cl(-) (ECl). To examine the regulation of ECl hyperpolarization we cultured hippocampal neurons for two weeks in either a low- or a high-concentration of KCl (2.6 or 18.7 mM, respectively). Neur...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2008.02.038
更新日期:2008-04-18 00:00:00
abstract::To investigate the effects of ionic changes possibly associated with hibernation, hippocampal slices prepared from golden hamsters were studied in artificial cerebrospinal fluid (ACSF) of variable composition (K+ 3-5 mM, Ca2+ 2-4 mM, Mg2+ 2-4 mM, pH 7.0-7.7) at temperatures of 15-20 degrees C, just above the temperatu...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(95)00524-t
更新日期:1995-08-14 00:00:00
abstract::Many parts of the brainstem are known to be innervated by the cholinergic neurons of the pontomesencephalic tegmentum, but other possible sources of this innervation have rarely been considered. We sought to examine whether other cells in the brainstem were responsible for this cholinergic input using axonal tract tra...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(94)90185-6
更新日期:1994-02-04 00:00:00
abstract::The effects of VIP and of peptides of the VIP family: secretin, glucagon, the porcine histidine isoleucine containing peptide (PHI) and the rat hypothalamic growth hormone-releasing hormone (rhGRF) on the cyclic AMP and inositol phosphate contents of isolated rat superior cervical ganglia were investigated. We demonst...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(86)90200-3
更新日期:1986-06-25 00:00:00
abstract::A newly discovered cell-to-cell communication system involves small, membrane-enveloped nanovesicles, called exosomes. We describe here how these extracellular nanoparticles were discovered and how it became gradually apparent that they play fundamental roles in regulation of physiological functions and pathological p...
journal_title:Brain research
pub_type: 杂志文章,评审
doi:10.1016/j.brainres.2014.09.070
更新日期:2015-08-18 00:00:00
abstract::The enzyme in brain that hydrolyzes 2',3'-cyclic nucleotides to the 2'-mononucleotides has been found by several authors to be concentrated in the myelin fraction. To facilitate further study of the enzyme, one of our objectives has been to develop a method of solubilizing the enzyme without the use of detergents. Whe...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(75)90719-2
更新日期:1975-05-23 00:00:00
abstract::The cholinergic neurotoxin, AF64A-picrylsulfonate, was unilaterally infused into the dorsal hippocampus of Wistar rats (2 nmol/2 microliters/4 min; A 6.2, Ls 1.5, H 6.5, Paxinos and Watson). After 19 days the for immunohistochemical staining of choline acetyltransferase (ChAT). Morphometry and counting of ChAT-immunor...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(86)91125-x
更新日期:1986-04-02 00:00:00
abstract::It is well established that extracellular choline is transported into central cholinergic nerve terminals by 'high' and 'low' affinity processes to form the neurotransmitter acetylcholine (ACh). The intent of the present investigation was to ascertain whether extracellular acetate might also be transported into centra...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(96)01485-0
更新日期:1997-04-04 00:00:00
abstract::The glutamate analogue 2-amino-4-phosphonobutyric acid (AP4) is a potent antagonist at several synapses where an excitatory amino acid appears to be the neurotransmitter. Previous studies identified a Cl-/Ca2+ dependent [3H]glutamate binding site in synaptic plasma membrane (SPM) preparations that was also labeled by ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(86)90977-7
更新日期:1986-06-04 00:00:00
abstract::Numerous preclinical studies demonstrate that vagus nerve stimulation (VNS) paired with motor rehabilitation improves functional recovery after neural injuries such as stroke, traumatic brain injury, and spinal cord injury, in part by driving neural plasticity within the motor cortex. To date, these studies have been ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2020.147099
更新日期:2020-12-01 00:00:00
abstract::The effects of the sulfated octapeptide of cholecystokinin (CCK8-S), the non-sulfated homolog (CCK8-NS) as well as the C-terminal di-, tri- and tetrapeptidic fragments (respectively CCK2, CCK3 and CCK4) were studied in vitro in rat hippocampal slices by extracellular recording of the spontaneous action potential disch...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(88)90776-7
更新日期:1988-06-07 00:00:00
abstract::The distribution of degeneration in the vestibular nuclei (VN) has been studied in transversely cut sections from 9 cats with stereotaxically performed lesions in the main reticular formation (RF) of the brain stem (Nauta of Fink and Heimer method). No projection was found from the mesencephalic reticular formation (R...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(75)90224-3
更新日期:1975-09-05 00:00:00
abstract::Primary afferent neurons in mammalian dorsal root ganglia (DRGs) normally function as independent sensory communication elements. However, it has recently been shown that most DRG neurons are transiently activated when axons of neighboring neurons of the same ganglion are stimulated repetitively and the cross-depolari...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(03)02342-4
更新日期:2003-04-25 00:00:00
abstract::The distribution of bFGF in mouse and rat retinas was established using an antibody generated against a rat specific bFGF sequence. The patterns established with this antibody were distinctly different in comparison to the immunostaining patterns using antibodies prepared against similar regions of bovine and human bF...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(92)91236-8
更新日期:1992-07-10 00:00:00
abstract::Cortical superfusion with 6-aminomethyl-3-methyl, 1-4H-1,2,6-benzothiadiazine-1,1-diazide hydrocholoride (TAG) at a concentration which selectively blocks taurine (Tau) action fails to modify electroencephalographic (EEG) activity, cortical neuronal firing and caudate-induced inhibition of cortical neuronal activity. ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(86)91449-6
更新日期:1986-08-13 00:00:00
abstract::Natural food sources constitute a promising source of new compounds with neuroprotective properties, once they have the ability to reach the brain. Our aim was to evaluate the brain accessibility of quercetin, epigallocatechin gallate (EGCG) and cyanidin-3-glucoside (C3G) in relation to their neuroprotective capabilit...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2016.09.020
更新日期:2016-11-15 00:00:00
abstract::A substantial projection from the retina to the dorsal raphe nucleus (DRN) has been demonstrated in the Chilean degus, a diurnal/crepuscular hystricomorph rodent. Following intraocular injection of cholera toxin subunit B (CTB), immunocytochemically labeled CTB-positive axons and terminals were observed in all major r...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(01)02061-3
更新日期:2001-03-23 00:00:00
abstract::Bilateral intraventricular injections of 6-hydroxydopamine depleted dopamine (DA) in striatal tissue of rats by 88%. Tail shock increased DA in striatal extracellular fluid of these rats from 10 to 17 pg/20 microliters as measured by microdialysis, values less than half those seen in normal striatum. The increase was ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(90)91158-d
更新日期:1990-09-17 00:00:00
abstract::Maternal care is crucial for offspring development and licking/grooming patterns can be induced by sensorial, neuroendocrine, and metabolic variations in the CNS. Important brain functions, such as learning and memory, can be influenced by oxidative stress, which can also modulate pathophysiological processes (e.g., d...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2016.11.010
更新日期:2017-01-15 00:00:00
abstract::Sardinian alcohol non-preferring (sNP) rats, selected for their low ethanol preference and consumption, carry a point mutation (R100Q) in the gene coding for GABA(A) receptor alpha(6) subunit, which becomes more sensitive to diazepam-evoked GABA currents. We performed binding studies in the cerebellum of normal (RR) a...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(02)04230-0
更新日期:2003-03-28 00:00:00
abstract::The lack of the glycine transporter 1 (GlyT1) leads to early postnatal death due to failure of respiratory network activity. Here we demonstrate a segregated expression of GlyT1 on different astroglial cell populations of the ventral respiratory group. In TgN(hGFAP-EGFP) mice a combined immunohistochemical and electro...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2006.08.089
更新日期:2006-11-13 00:00:00
abstract::It has been suggested that individual predisposition to develop amphetamine self-administration is associated with impairment in corticosteroid negative feedback mechanisms. Since corticosteroid receptors, particularly those in the hippocampus, are involved in corticosterone feedback sensitivity, we examined the relat...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(91)91137-p
更新日期:1991-05-10 00:00:00
abstract::[35S]GTPgammaS autoradiography of slide-mounted tissue sections was used to examine G-protein coupling in the rat spinal cord, as stimulated by dopamine, the D1 receptor agonist SKF 38393, noradrenaline, and noradrenaline in the presence of the alpha adrenoceptor antagonist, phentolamine. Measurements were obtained fr...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2005.10.101
更新日期:2006-01-27 00:00:00
abstract::Death receptors are associated with the homeostatic and pathologic induction of cell death. TR3 is a recently characterised member of the death receptor family that is expressed in the adult brain. In order to establish the role of TR3 in acute CNS disease and chronic neurodegeneration, we analysed brain regions from ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(99)02417-8
更新日期:2000-02-28 00:00:00
abstract::Both clinical and experimental studies have indicated that depression and depression-like animal conditions are associated with disruption of the intrinsic plasticity of the brain, resulting in neuronal atrophy. However, little is known about the brain glia in these conditions. Early life stress in the form of infant ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2007.01.039
更新日期:2007-04-20 00:00:00
abstract::Depolarizing actions of 4 conformationally restricted L-glutamate analogues, (2S,3S,4S) isomer (L-CCG-I), (2S,3R,4R) isomer (L-CCG-II), (2S,3S,4R) isomer (L-CCG-III) and (2S,3R,4S) isomer (L-CCG-IV) of L-alpha-(carboxycyclopropyl)-glycine (L-CCG), were investigated in the isolated rat spinal cord by extracellular reco...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(89)90207-2
更新日期:1989-02-20 00:00:00
abstract::The cytoplasmic adaptor protein Disabled-1 (Dab1), which is a key component of the Reelin-signaling pathway, has been suggested to be required for neuronal dendritic development. However, only data from studies on immature cultures [< or = 6 days in vitro (DIV)] and cytoarchitectural analyses of mutant mice have been ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2007.07.035
更新日期:2007-10-03 00:00:00
abstract::Propofol is an intravenous anesthetic with neuroprotective effects against cerebral ischemia-reperfusion (I/R) injury. Few studies regarding the neuroprotective and neurobehavioral effects of propofol have been conducted, and the underlying mechanisms are still unclear. Because I/R may result in neuronal apoptosis, th...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2011.06.060
更新日期:2011-09-02 00:00:00
abstract::The purpose of this study was to determine if motoneurons in the spinal ventral horn express the muscarinic m2 acetylcholine receptor. Motoneurons were retrogradely labelled in adult rats by intramuscular injection of Fluorogold and examined with confocal microscopy for evidence of immunoreactivity for the receptor. T...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(98)01208-6
更新日期:1999-01-30 00:00:00
abstract::At two weeks post-transplantation, sciatic nerves inserted into the lesioned septo-hippocampal pathway contain NGF levels more than twice that of normal nerves. These transplanted nerves also contain regenerating cholinergic axons. Moreover, transplanted animals exhibit septal NGF levels that are significantly greater...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(91)90147-n
更新日期:1991-08-23 00:00:00