Abstract:
:Apoptotic cell death is associated with condensation and fragmentation of the nuclear chromatin into apoptotic bodies. Such nuclei occur frequently following cerebral hypoxia-ischemia in 1 week old rats but seem sparse in older animals. We investigated the age dependence by counting pyknotic or punctate chromatin containing cells in the cerebral cortex of 1,2 and 4 week old animals subjected to cerebral hypoxia-ischemia. In 1 week old animals the majority of injured neurons in the cortex had nuclei with punctate condensed chromatin but few were pyknotic. In the 2 and 4 week old animals the majority of injured cells were pyknotic (P < 0.002). Electron microscopic studies demonstrated the presence of apoptotic bodies. The results suggest that immature brain retains a part of the developmental cell death "program' that is activated following hypoxia-ischemia.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Sidhu RS,Tuor UI,Del Bigio MRdoi
10.1016/s0304-3940(97)13426-7subject
Has Abstractpub_date
1997-02-21 00:00:00pages
129-32issue
2eissn
0304-3940issn
1872-7972pii
S0304-3940(97)13426-7journal_volume
223pub_type
杂志文章abstract::Agonist-induced turnover or release of inositolphosphates (IP) was studied in the dorsal and the ventral hippocampus 24 h, 1 month, and 3 months after the last electrical stimulus of kindled rats. A significant increase in acetylcholine (ACh)-stimulated IP turnover was observed in dorsal, but not ventral, hippocampus ...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(90)90248-8
更新日期:1990-10-02 00:00:00
abstract::The effects of morphine (0.2-200 micrograms/kg) administered into the brain stem via a vertebral artery on the somatosympathetic A- and C-reflexes evoked in a cardiac sympathetic nerve by electrical stimulation of somatic myelinated (A) and unmyelinated (C) afferent nerve fibers in anesthetized cats were examined. The...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(92)90916-u
更新日期:1992-04-27 00:00:00
abstract::Ca2+ signals regulate most aspects of animal cell life. They are of particular importance to the nervous system, in which they regulate specific functions, from neuronal development to synaptic plasticity. The homeostasis of cell Ca2+ must thus be very precisely regulated: in all cells Ca2+ pumps transport it from the...
journal_title:Neuroscience letters
pub_type: 杂志文章,评审
doi:10.1016/j.neulet.2017.11.005
更新日期:2018-01-10 00:00:00
abstract::beta-N-Oxalylamino-L-alanine (BOAA) and beta-N-methylamino-L-alanine (BMAA) were tested for their ability to produce acute excitotoxicity in in embryonic chick retina. gamma-Aminobutyric acid (GABA) release and histology were monitored in retina treated with various concentrations of BOAA, BMAA, kainate (KA), N-methyl...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(89)90093-1
更新日期:1989-07-31 00:00:00
abstract::Using the novel substituted benzamide drug [3H]raclopride in combination with in vitro receptor autoradiography, the distribution of dopamine D-2 receptors was studied in the monkey brain. Highest densities of D-2 receptors are present in dopamine-rich areas and the distribution shows the following rank order: caudatu...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(86)90170-9
更新日期:1986-05-06 00:00:00
abstract::Nerve growth factor (NGF) protein has been implicated in alterations of cognitive function either following brain damage, selective lesions or aging. Groups of rats were given long-term (48 weeks) oral barbital treatment or tap water and following an extended period of abstinence (14 weeks) were tested for spatial lea...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(92)90299-m
更新日期:1992-03-16 00:00:00
abstract::Ischemic preconditioning is considered to be the most robust endogenous neuroprotectant. However, the conventional ischemic preconditioning protocol is both invasive and impractical to apply. The aim of the present study was to evaluate whether preconditioning with +Gz centrifuge acceleration (head-to-foot inertial lo...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2008.08.067
更新日期:2008-11-07 00:00:00
abstract::A brief hammer tap applied passively (by the experimenter) to the forearm elicits a short-latency reflex response in the forearm flexors and extensors. When the same tap is performed actively (by the subject) using the opposite forearm, the reflex response is preceded by a short-lasting anticipatory reduction in the m...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(93)90812-y
更新日期:1993-09-03 00:00:00
abstract::Brain pericytes are involved in neurovascular dysfunction, neurodegeneration and/or neuroinflammation. In the present study, we focused on the proinflammatory properties of brain pericytes to understand their participation in the induction of inflammation at the neurovascular unit (NVU). The NVU comprises different ce...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2014.06.052
更新日期:2014-08-22 00:00:00
abstract::It has been shown that Fasciculins (FAS), polypeptides isolated from the venom of the green mamba Dendroaspis angusticeps, provoke a powerful inhibition of peripheral acetylcholinesterase (AChE). In the present study, 0.5 microliter of increasing concentrations (10-500 micrograms/ml) of FAS were injected into the stri...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(87)90612-4
更新日期:1987-06-01 00:00:00
abstract::The objective of this study was to determine if yohimbine, a central norepinephrine enhancing drug, increases cortico-motoneuronal excitability in intact humans. Transcranial magnetic stimulation was used to assess excitability of the motor system reflected in the parameters motor threshold, recruitment curve, intraco...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(01)01921-8
更新日期:2001-07-06 00:00:00
abstract::Intracellular regulation of NMDA-receptor-mediated currents in cultured rat spinal dorsal horn neurons was investigated by means of simultaneously recording whole-cell currents and intracellular Ca2+ concentration ([Ca2+]i). During recordings in which EGTA (11 mM) was used to buffer intracellular Ca2+, NMDA currents s...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(93)90732-z
更新日期:1993-07-23 00:00:00
abstract::The availability of choline during the prenatal period influences neural and cognitive development. Here we report that choline supplementation during a six-day gestational period protects against neurodegeneration in the posterior cingulate and retrosplenial cortices of adult female rats produced by systemic administ...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(03)00119-8
更新日期:2003-05-01 00:00:00
abstract:RATIONALE:Some investigations have shown that the glutamate receptors play a critical role in cognitive processes such as learning and anxiety. OBJECTIVES:The possible involvement of the cholinergic system of the dorsal hippocampus in the anxiolytic-like response induced by MK-801, NMDA receptor antagonist, was invest...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2011.08.009
更新日期:2011-11-14 00:00:00
abstract::Galanin- and bethanechol-activated whole cell currents were studied in dissociated mudpuppy parasympathetic neurons kept in 12.5 mM KCl. The bethanechol-induced current was reduced when generated during a galanin-induced current. The galanin and bethanechol currents reversed at -45 mV and exhibited inward rectificatio...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(92)90675-w
更新日期:1992-06-08 00:00:00
abstract::Elongation factor-2 kinase (eEF-2K) is a Ca(2+)/calmodulin-dependent protein kinase that is highly specific for eukaryotic elongation factor-2. In the present study, we examined the developmental expression of eEF-2K messenger RNA (mRNA) in the mouse brain. At E13, the expression of eEF-2K mRNA is already evident in b...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(02)00715-2
更新日期:2002-09-13 00:00:00
abstract::The epsilon4 allele of the apolipoprotein E gene (APOE) has repeatedly been associated with increased risk for Alzheimer's disease (AD). Bullido and colleagues recently identified a polymorphism in the promoter region of the APOE gene (-491A/T) and found that -491A homozygosity predicted AD independently of APOE epsil...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(98)00567-9
更新日期:1998-08-14 00:00:00
abstract::Sexual receptivity was suppressed in female rats immediately after the male had ejaculated. The inhibition was prevented by intravaginal injection of naloxone (100 micrograms) before testing and intravaginal injection of beta-endorphin (1.0 micrograms) inhibited sexual behavior in female rats in a manner comparable to...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(90)90523-c
更新日期:1990-07-17 00:00:00
abstract::The effects of nifedipine, niguldipine, nimodipine and nitrendipine on the high K+-induced intracellular Ca2+ ([Ca2+]i) transient in dibutyryl cAMP-differentiated neuroblastoma x glioma hybrid NG 108-15 cells were studied by using the fluorescent Ca2+ indicator fura-2. It was observed that nifedipine at the concentrat...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(97)00481-3
更新日期:1997-07-18 00:00:00
abstract::The effect of 4-aminopyridine (4-AP) on long-term potentiation (LTP) was studied in the hippocampal slice preparation of the rat. Field excitatory postsynaptic potentials (EPSPs) were recorded and evoked in the stratum radiatum of the CA1. Both the low frequency EPSP and LTP of the EPSP were significantly increased by...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(86)90446-5
更新日期:1986-09-25 00:00:00
abstract::We compared cerebrospinal fluid (CSF) apolipoprotein (apo) A-I and apo E concentrations in early- and late-onset Alzheimer's disease (EOAD (n = 11), LOAD (n = 15), respectively) with those in control subjects (n = 23). CSF apo A-I levels in both EOAD and LOAD were consistent with control subjects. However, CSF apo E l...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(97)00558-2
更新日期:1997-08-15 00:00:00
abstract::Neurotrophic factors maintain and modulate neuron function in adults. We tested the hypothesis that neurotrophic factors rapidly alter intracellular calcium concentrations, thereby affecting neuron excitability. The majority of rat nodose neurons express TrkA, TrkB and TrkC receptor after 1 day in culture. Addition of...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(02)01223-5
更新日期:2003-01-09 00:00:00
abstract::Vlgr1 (very large G-protein coupled receptor 1) knockout mice against hybrid backgrounds of the 129/Ola and C57BL/6 mouse strains show hearing deficit and high susceptibility to audiogenic seizures. The present study examined how hearing impairment and susceptibility to audiogenic seizures in Vlgr1-deficient mice chan...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2009.06.012
更新日期:2009-09-18 00:00:00
abstract::Astrocytes are effectively involved in the pathophysiological processes in the central nervous system (CNS) and may contribute to or protect against development of inflammatory and degenerative diseases. Sildenafil is a potent and selective phosphodiesterase-5 (PDE-5) inhibitor, which induces cyclic GMP accumulation. ...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2016.07.029
更新日期:2016-09-06 00:00:00
abstract::Functionally active N-methyl-D-aspartate (NMDA) receptors on cat medullary respiratory neurones were revealed by local iontophoretic application of DL-2-amino-7-phosphonoheptanoic acid (AP7). Blockade of NMDA receptors by systemic administration of NMDA antagonists (MK-801, phencyclidine, ketamine, AP7) in vagotomized...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(88)90452-1
更新日期:1988-05-03 00:00:00
abstract::Following sciatic nerve injury sympathetic invasion and basket formation is seen in dorsal root ganglia. We examined whether this phenomenon occurs in trigeminal ganglion (TG) following axotomy (IOAx) or chronic constriction injury to the infraorbital nerve (IOCCI). The IOCCI rats developed hyperresponsiveness to pinp...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(00)01681-5
更新日期:2001-01-19 00:00:00
abstract::Life choice (e.g. occupation choice) often includes situations with two or more possible answers. How does the brain respond to such conflict-ridden situations? We investigated whether the dorsal anterior cingulate cortex (dACC) evaluates the degree of conflict between possible answers. Additionally, we investigated w...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2009.04.056
更新日期:2009-07-31 00:00:00
abstract::Pannexins form single membrane channels that regulate the passage of ions, small molecules and metabolites between the intra- and extracellular compartments. In the central nervous system, these channels are integrated into numerous signaling cascades that shape brain physiology and pathology. Post-translational modif...
journal_title:Neuroscience letters
pub_type: 杂志文章,评审
doi:10.1016/j.neulet.2017.09.019
更新日期:2019-03-16 00:00:00
abstract::Neuroinflammation can lead to either damage of astrocytes or astrogliosis. Astrocyte loss may be caused by cytotoxic T cells as seen in Rasmussen encephalitis, auto-antibodies such as in neuromyelitis optica (aquaporin-4 antibodies), or cytokines such as TNF-α in major depressive disorder. Interleukins-1 and -6 appear...
journal_title:Neuroscience letters
pub_type: 杂志文章,评审
doi:10.1016/j.neulet.2013.10.012
更新日期:2014-04-17 00:00:00
abstract::Neurons containing the peptide corticotropin-releasing factor (CRF) are thought to play a pivotal role in orchestrating autonomic and behavioral responses to stress. CRF afferents to the thalamus are almost entirely concentrated in the midline nuclei, especially in the paraventricular thalamic nucleus. In chloral hydr...
journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(95)12148-w
更新日期:1995-12-01 00:00:00