Abstract:
:The ability of membrane-associated peptidases from the brains of spontaneously hypertensive rats (SHRs) and normotensive Wistar-Kyoto (WKY) rats to metabolize iodinated angiotensin (125I-Ang II) and 125I-Ang III was compared. 125I-Ang II was metabolized to 125I-Ang III and other fragments exclusively by membrane-associated peptidases. In contrast to 125I-Ang III which was effectively degraded by both membrane-associated and residual cytosolic peptidases, 125I-Ang II was unaltered by contaminating cytosolic enzymes. The ability of SHR-derived membranes to metabolize 125I-Ang II and produce 125I-Ang III was enhanced when compared to membranes from WKY rats. No difference was observed in the ability of membrane or cytosolic enzymes from SHR and WKY rats to degrade 125I-Ang III. These data are consistent with an increased availability of Ang III in the brains of SHRs.
journal_name
Brain Resjournal_title
Brain researchauthors
Cook VI,Wright JW,Wright SA,Harding JWdoi
10.1016/0006-8993(90)90844-2subject
Has Abstractpub_date
1990-10-08 00:00:00pages
320-3issue
1-2eissn
0006-8993issn
1872-6240pii
0006-8993(90)90844-2journal_volume
529pub_type
杂志文章相关文献
BRAIN RESEARCH文献大全abstract::Neuropeptide Y (NPY) presynaptically inhibits excitatory transmission in area CA1 of rat hippocampus. As postsynaptic NPY receptors in certain other tissues have been shown to be coupled to G-proteins, we have tested the hypothesis that the hippocampal NPY effects are also mediated by G-proteins. Pretreatment of rats ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(89)90403-4
更新日期:1989-09-25 00:00:00
abstract::The pleiotropic cytokine tumor necrosis factor-alpha (TNFalpha) is implicated in the development of persistent pain through its actions in the periphery and in the central nervous system (CNS). Activation of the alpha(2)-adrenergic receptor is associated with modulation of pain, possibly through its autoregulatory eff...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(00)01965-x
更新日期:2000-03-17 00:00:00
abstract::The two primary categories of stroke, ischemic and hemorrhagic, both have fundamentally different mechanisms and thus different treatment options. These two stroke categories were applied to rat models to identify potential biomarkers that can distinguish between them. Ischemic stroke was induced by middle cerebral ar...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2013.09.051
更新日期:2013-12-02 00:00:00
abstract::Nerve fibers and terminals immunoreactive for cholecystokinin (CCK) were demonstrated in the nucleus of the solitary tract (NTS) of the rat using light and electron microscopic immunocytochemistry. The following morphological and biochemical evidence suggests that CCK in the NTS seems to be of extrinsic, most probably...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(82)90408-5
更新日期:1982-12-09 00:00:00
abstract::The peroxidase-antiperoxidase (PAP) immunohistochemical technique was used to identify neurons in the basolateral amygdaloid nucleus (BL) that contain vasoactive intestinal polypeptide (VIP), somatostatin (SOM) or cholecystokinin (CCK). Examination of immunostained neurons demonstrated that most, if not all, of these ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(85)90266-5
更新日期:1985-07-08 00:00:00
abstract::Obesity and related metabolic disorders are important side effects of some antipsychotic drugs (APs). The currently available animal model of AP-induced bodyweight gain (BWG) in rats is based on administration of sulpiride (SUL). However, this model has important limitations. For example, SUL is a pure dopamine antago...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(02)03616-8
更新日期:2002-12-06 00:00:00
abstract::Source memory for the speaker's voice (male or female) was investigated when semantic knowledge (gender stereotypes) could and could not inform the episodic source judgment while event-related potentials (ERPs) were recorded. Source accuracy was greater and response times were faster when stereotypes could predict the...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2012.11.013
更新日期:2013-01-23 00:00:00
abstract::Administration of aminooxyacetic acid, (an inhibitor of gamma-aminobutyric acid (GABA)-transaminase which enhances the hypothalamic GABA content) increased luteinizing hormone (LH) and follicle stimulating hormone (FSH) levels in prepubertal rats (16 days of age), and decreased the levels of these pituitary hormones i...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(91)91508-x
更新日期:1991-11-01 00:00:00
abstract::About 45% of the serotonergic raphe neurons are reported to express nerve growth factor (NGF) receptors. We therefore investigated whether selective serotonergic lesions of the median or dorsal raphe nuclei are associated with changes in NGF protein levels of the brain and whether the loss of serotonergic function alt...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(01)02611-7
更新日期:2001-07-13 00:00:00
abstract::In synaptosomal preparations from rat cerebral cortex, ouabain-sensitive Rb+ uptake was stimulated by ethanol (20-80 mM). Based on differential sensitivity to ouabain, 80% of this Na+,K(+)-ATPase activity represented activity of the alpha 1 isozyme while 20% was due to the alpha 2 and/or alpha 3 isozymes (alpha 2/ alp...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(94)90386-7
更新日期:1994-08-08 00:00:00
abstract::The intracellular pH, 7.54 +/- 0.03 (mean +/- S.D., n = 15), determined with the Neutral red method, of the hippocampal brain slice preparation under baseline incubation conditions is considerably more alkaline than the bath buffer pH. Neutralization by amiloride suggests that the alkalinity was due to Na+/H+ exchange...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(96)00512-4
更新日期:1996-08-26 00:00:00
abstract::The vestibular system produces a variety of compensatory responses to accelerations of the head, which include reflex responses recorded from respiratory muscle nerves of the thorax and abdomen. In order to better understand the functional significance of vestibulo-respiratory reflexes, we investigated the extent to w...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(96)00674-9
更新日期:1996-10-14 00:00:00
abstract::To account for deficits in interval timing observed in Parkinson's Disease (PD) patients, we develop a model based on the accumulating firing rate of a neural population with recurrent excitation. This model naturally produces the curvilinear accumulation of neural activity introduced to timing psychophysics by Miall ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2005.10.070
更新日期:2006-01-27 00:00:00
abstract::Leumorphin, an opioid peptide whose functions are unknown, is found in mammalian brain and pituitary and stimulates lordosis behavior in estrogen-treated female rats. To elucidate the role of leumorphin in the physiological control of female sexual behavior, the levels of immunoreactive (ir) leumorphin as well as ir d...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(86)90417-8
更新日期:1986-05-28 00:00:00
abstract::Steps of torque were applied to the human forearm during intentional flexion movements with peak velocities of 40-500 degrees/sec and during ballistically initiated flexion movements. The question asked was whether or not the motor ouput to both agonist and antagonist muscles is independent of sensory input data or is...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(78)90656-x
更新日期:1978-07-07 00:00:00
abstract::The hindpaw was partially denervated by the tibial nerve transection in adult rats. At post-transection intervals varying from 2 to 168 days, the hindpaw was stimulated bilaterally by subcutaneous injection of formalin. The excitability of dorsal horn neurons was expressed as the percentage ratio of the number of form...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(94)90942-3
更新日期:1994-04-11 00:00:00
abstract::Application of the cholinergic agonist, carbachol, produced theta-like rhythmical waveforms, recorded in the stratum moleculare of the dentate gyrus in the cat hippocampal formation slices. This effect of carbachol was antagonized by atropine but not D-tubocurarine. These results provide first direct evidence that the...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(92)90223-v
更新日期:1992-04-24 00:00:00
abstract::In anesthetized rats, out of 48 paraventricular (PaV) and 19 periventricular (PeV) neurosecretory cells, 12 PaV and 6 PeV cells increased and 10 PaV cells decreased the electrical activities statically in response to preoptic and anterior hypothalamic warming. Four PaV and 2 PeV cells responded dynamically to the ther...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(83)90036-7
更新日期:1983-12-19 00:00:00
abstract::Since it has been proposed that oxidized protein accumulation plays a critical role in brain aging, we have investigated their contents in synaptic mitochondria from five age groups of mice. Protein carbonyl content in synaptic mitochondria showed a significant positive correlation with age (r = 0.95, P = 0.01). A lin...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(96)00708-1
更新日期:1996-08-26 00:00:00
abstract::Habituation kinetics were found to vary considerably in different polysynaptic pathways of the brain stem in man. The exteroceptive reflex of the digastric muscle habituates markedly, even for stimuli repeated at 1-min intervals. The second component of the blink reflex habituates for intervals below about 8 sec, but ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(76)90070-6
更新日期:1976-04-16 00:00:00
abstract::In order to examine the relationship between myelination and sensitivity to anoxia in adult white matter, we studied action potential conduction in the spinal cord dorsal column of adult rats in which focal demyelinating lesions had been produced using ethidium bromide/X-irradiation. Acutely isolated spinal cords from...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(97)01171-2
更新日期:1998-01-01 00:00:00
abstract::Although Rolling mouse Nagoya (RMN) has been considered to demonstrate cerebellar dysfunction, our previous metabolic and electrophysiological studies also revealed a dysfunction of the basal ganglia, with the presumable primary site of dysfunction being the striatum. In the present study, we investigated the neuroche...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(95)01577-9
更新日期:1996-04-01 00:00:00
abstract::We measured the effect of high PCO (500-550 Torr) on the pHi and [Ca2+]i in cultured glomus cells of adult rat carotid body (CB) as a test of the two models currently proposed for the mechanism of CB chemoreception. The metabolic model postulates that the rise in glomus cell [Ca2+]i, the initiating reaction in the sig...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(98)00607-6
更新日期:1998-08-24 00:00:00
abstract::Size matched male green anoles (Anolis carolinensis) were paired in a neutral setting and allowed to engage in aggressive displays. Winners and losers were apparent in each pair within 90min, resulting in stable dominant/subordinate dyads. Androgen receptor (AR) expression was assessed at three time points after the i...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2014.07.028
更新日期:2014-09-25 00:00:00
abstract::In rats anaesthetised with alphaxalone/alphadolone, electrical stimulation in the dorsolateral part of the periaqueductal grey matter (PAG; 10 s trains of 1 ms pulses at 80 Hz, 40-80 microA) evoked a pressor response accompanied by tachycardia. Both components of the response were attenuated following microinjection o...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(94)90702-1
更新日期:1994-07-18 00:00:00
abstract::Stereotaxically placed intracerebral microinjections of 6-hydroxydopamine (6-OHDA) were used to produce selective and extensive lesions of either the dopaminergic nigro-neostriatal bundle or the dorsal and ventral noradrenergic projections in the rat. The extensive damage of the noradrenergic pathways which is typical...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(75)90182-1
更新日期:1975-08-15 00:00:00
abstract::Recent work in our laboratory has demonstrated that spontaneous or evoked climbing fiber inputs are associated with an increased responsiveness of Purkinje cells to mossy fiber inputs activated by natural peripheral stimuli. These experiments were designed to test the hypothesis that this increased responsiveness occu...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(84)91027-8
更新日期:1984-08-20 00:00:00
abstract::To better understand the contributions of effort on cortical activation associated with motor tasks, healthy participants with varying capacities for isolating the control of individual finger movements performed tasks consisting of a single concurrent abduction of all digits (Easy) and paired finger abduction with di...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2009.09.005
更新日期:2009-12-08 00:00:00
abstract::Diabetes mellitus can lead to functional and structural deficits in both the peripheral and central nervous system. The pathogenesis of these deficits is multifactorial, probably involving, among others, microvascular dysfunction and alterations in intracellular calcium homeostasis. The present study examined the effe...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2004.12.025
更新日期:2005-02-21 00:00:00
abstract::Electrical and pharmacological properties of currents induced by compounds having affinities for putative sigma receptors were investigated with NCB20 cells by use of the whole-cell patch-clamp technique. Antipsychotics and naloxone induced inward currents with a decrease in membrane conductance at a holding potential...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(94)91232-7
更新日期:1994-02-21 00:00:00