Abstract:
:1. Radiotherapy has attracted increasing interest in recent years. It is known that ionizing radiation induces oxygen radical injury, whereas oxidative stress by the radiation can cause cellular responses to defense cellular injury. In this study, the metabolism of antioxidants in response to ionizing radiation to the brain was studied in the brain using experimental rabbits. 2. Ionizing radiation to the hemicerebrum caused an increase in the levels of glutathione (GSH) and the activity of a GSH synthesizing enzyme, gamma-glutamylcysteine synthetase (gamma-GCS), and Cu,Zn-superoxide dismutase (Cu,Zn-SOD). Ionizing radiation also induced DNA-damage estimated by the formation of 8-hydroxydeoxyguanosine. These changes were dependent on the radiation dose. 3. Previous intrathecal-administration of buthionine sulfoximine (100 microM), a specific inhibitor of gamma-GCS, increased DNA damage by radiation in the radiated hemicerebrum. That of S-methyl GSH, on the other hand, resulted in a significant reduction of DNA damage by radiation. 4. These results suggest that synthesis of GSH and Cu,Zn-SOD is responsive to ionizing radiation and this induction of antioxidants may play a role in reducing tissue damage in radiotherapy.
journal_name
Cell Mol Neurobioljournal_title
Cellular and molecular neurobiologyauthors
Shimizu T,Iwanaga M,Yasunaga A,Urata Y,Goto S,Shibata S,Kondo Tdoi
10.1023/a:1022525214871subject
Has Abstractpub_date
1998-06-01 00:00:00pages
299-310issue
3eissn
0272-4340issn
1573-6830journal_volume
18pub_type
杂志文章abstract::1. Effects of 5-hydroxytryptamine (5-HT) on neuronal nicotinic acetylcholine (ACh) receptor channels were investigated by expressing cloned channel subunits in Xenopus oocytes. 2. When channels were expressed with a combination of alpha 3 and beta 4 subunits, 5-HT (10 to 300 microM) reversibly inhibited an inward curr...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/BF02071882
更新日期:1995-08-01 00:00:00
abstract::microRNAs (miRNAs) comprise a class of ~18-25 nucleotide (nt) single-stranded non-coding RNAs (sncRNAs) that are the smallest known carriers of gene-encoded, post-transcriptional regulatory information in both plants and animals. There are many fundamental similarities between plant and animal miRNAs-the miRNAs of bot...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章,评审
doi:10.1007/s10571-017-0547-4
更新日期:2018-01-01 00:00:00
abstract::Secretory phospholipases A2 (sPLA2) form a diverse family of enzymes involved in physiologic and pathologic processes. Common among all sPLA2 is the ability to cleave acyl groups of phospholipids at C2 of the glycerol backbone, thereby releasing fatty acid and a lysophospholipid. Several sPLA2 have been cloned and cha...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/s10571-005-8221-7
更新日期:2005-11-01 00:00:00
abstract::1. Platelet-derived growth factor (PDGF) plays an important role not only in mesenchyme-derived tissues, but also in the mammalian central nervous system. The Patch mutant (Ph/+) lacks one copy of the PDGFR-alpha gene. However, it is not clear whether there are differences in expression of PDGF receptor alpha-subunit ...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/BF02150228
更新日期:1996-08-01 00:00:00
abstract::1. Aminoalkylindoles, typified by WIN 55212-2, bind to G protein-coupled cannabinoid receptors in brain. Although cannabinoids inhibit adenylyl cyclase in NG108-15 neuroblastoma x glioma hybrid cells, cannabinoid receptor binding in these cells has not been described previously. This study compares pharmacological cha...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1023/a:1026306804802
更新日期:1997-10-01 00:00:00
abstract::1. The aims of the present study were (a) to determine the identity of the G proteins with which the endothelin receptor interacts and whether this interaction is subtype specific and (b) to determine whether agonist exposure can result in specific coupling between the endothelin receptor and G proteins. 2. Coupling b...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1023/a:1007010125316
更新日期:2000-06-01 00:00:00
abstract::Mental retardation, which occurs in phenylketonuric patients, is associated with increased levels of phenylalanine, increased oxidative stress, and an imbalance of amino acids in the brain. Recent studies have shown that oxidative stress plays a role in the pathogenesis of phenylketonuria. In this work, we aimed to co...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/s10571-017-0573-2
更新日期:2018-07-01 00:00:00
abstract::1. In the retinal inner nuclear layer of the majority of species, a dopaminergic neuronal network has been visualized in either amacrine cells or the so-called interplexiform cells. 2. Binding studies of retinal dopamine receptors have revealed the existence of both D1- as well D2-subtypes. The D1-subtype was characte...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章,评审
doi:10.1007/BF00711177
更新日期:1990-09-01 00:00:00
abstract::1. Gonadotropin-releasing hormone (GnRH) was originally isolated as a hypothalamic peptide hormone that regulates the reproductive system by stimulating the release of gonadotropins from the anterior pituitary. However, during evolution the peptide was subject to gene duplication and structural changes, and multiple m...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章,评审
doi:10.1007/BF02069556
更新日期:1995-02-01 00:00:00
abstract::The effects of the divalent cations Ca and Mg on the properties of ACh-activated channels at the frog neuromuscular junction were studied using a two-microelectrode voltage clamp. The divalent cation concentration was varied from 2 to 40 mM in solutions containing 50% normal Na. The reversal potential was determined b...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/BF00733590
更新日期:1984-09-01 00:00:00
abstract::In order to guarantee better conditions for competition, the nervous system has developed not only mechanisms controlling muscle effectors, but also retrograde systems that, starting from peripheral structures, may influence brain functions. Under such perspective, physical activity could play an important role in inf...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章,评审
doi:10.1007/s10571-009-9488-x
更新日期:2010-05-01 00:00:00
abstract::Levels of cyclic nucleotides and ornithine decarboxylase (ODC) activity were examined following the application of various kinds of stimuli to superior cervical sympathetic ganglia (SCG), nodose ganglia, and vagus nerve fibers excised from the rat. The level of cyclic GMP in the SCG rose rapidly to about 4.5- to 7.5-f...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/BF00710944
更新日期:1984-03-01 00:00:00
abstract::1. Neurotrophins and serotonin have both been implicated in the pathophysiology of depression and in the mechanisms of antidepressant treatments. 2. Brain-derived neurotrophic factor (BDNF) influences the growth and plasticity of serotonergic (5-HT) neurons via the activation of trkB receptor. 3. Transgenic mice overe...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/s10571-005-8468-z
更新日期:2005-09-01 00:00:00
abstract::Modulation of enzyme activity through nitrosylation has recently been identified as a new physiological activity of nitric oxide (NO). We hypothesized that NO enhances the TNF-α-induced death of retinal neurons through a suppression of nuclear factor-κB (NF-κB) by nitrosylation. In this study, cells from the RGC-5 lin...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/s10571-011-9739-5
更新日期:2012-01-01 00:00:00
abstract::The insulin-like growth factor (IGF) system is linked to CNS pathological states. The functions of IGFs are modulated by a family of binding proteins termed insulin-like growth factor binding proteins (IGFBPs). Here, we demonstrate that IGFBP-6 may be associated with neuronal apoptosis in the processes of intracerebra...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/s10571-016-0453-1
更新日期:2017-10-01 00:00:00
abstract::1. Spatio-temporal changes in phosphorylated (pNFP) and nonphosphorylated (npNFP) neurofilament proteins were assessed immunocytochemicaly in adult rat cerebellum, 2-30 days following unilateral injection of kainic acid (KA) or physiological saline (s.c.). 2. Analysis of the staining intensity and pattern demonstrated...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1023/b:cemn.0000022769.44211.2b
更新日期:2004-06-01 00:00:00
abstract::1. The effects of radiofrequency lesions of the ventral noradrenergic bundle (VNB) on monoamine and metabolite concentrations in several discrete areas of the rat hypothalamus were examined. Monoamines and metabolites were analyzed utilizing high-performance liquid chromatography coupled with electrochemical detection...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/BF00733792
更新日期:1987-12-01 00:00:00
abstract::Thymosin-beta4 (Tbeta4) is a major actin monomer-binding peptide in mammalian tissues and plays a crucial role in the nervous system in synaptogenesis, neuronal survival and migration, axonal growth, and plastic changes of dendritic spines. However, it is unknown whether Tbeta4 is also involved in challenges with exte...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/s10571-009-9439-6
更新日期:2010-01-01 00:00:00
abstract::Anxiety-related disorders are complex illnesses that underlying molecular mechanisms need to be understood. Mitochondria stand as an important link between energy metabolism, oxidative stress, and anxiety. The nuclear factor, erythroid-derived 2,-like 1(Nrf1) is a member of the cap "n" collar subfamily of basic region...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/s10571-015-0236-0
更新日期:2016-05-01 00:00:00
abstract::Gamma-aminobutyric acid (GABA) is one of the most important neurotransmitters in the brain. In an effort to understand the operation of the GABA receptor-ionophore complex, the antagonism of GABA responses by four substances was studied in bullfrog dorsal root ganglion cells by concentration-clamp and internal-perfusi...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/BF00734993
更新日期:1987-03-01 00:00:00
abstract::Diabetes damages the central nervous system, inducing cognitive dysfunction and structural changes, known as diabetic encephalopathy (DE). Some research suggests that the pathogenesis of DE may involve an inflammatory imbalance in the nervous system, along with β-amyloid deposition, similar to Alzheimer's disease. Les...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/s10571-015-0209-3
更新日期:2015-11-01 00:00:00
abstract:OBJECTIVE:The diagnosis of multiple sclerosis (MS) is still challenging recently due to the lack of a specific diagnostic test. Proteomics analysis was applied to biomarkers discovery and their pathways study. METHODS:First, the proteins of CSF from MS patients and control group were analyzed individually with 2D-DIGE...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/s10571-008-9312-z
更新日期:2009-03-01 00:00:00
abstract::1. The analogies between the processing of amyloid precursor protein (APP) and other transmembrane sterol regulatory element binding proteins (SREBPs) inspired us to conduct further studies on whether beta-amyloid (Abeta) affects aromatase by interacting with APP and SREBP. 2. In this study, cultured human neuroblasto...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/s10571-006-9060-x
更新日期:2006-05-01 00:00:00
abstract::The mode of action of the cholinergic antagonist hexamethonium on the excitatory responses of voltage-clamped Aplysia neurons to acetylcholine (ACh) has been examined by voltage- and concentration-jump relaxation analysis. At steady-state concentrations of ACh hyperpolarizing command steps induced inward current relax...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/BF00711070
更新日期:1986-06-01 00:00:00
abstract::1. We measured changes in resting membrane potential (Em) and Na-K pump activity, assayed by ouabain-sensitive 86Rb uptake, in response to carbamylcholine (CCh) and its continued presence in single rat skeletal myotubes in culture. 2. CCh caused immediate depolarization from control Em (-80 to -85 mV) to near 0 follow...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/BF00711225
更新日期:1988-12-01 00:00:00
abstract::Astragalosides (AST) are reported to be neuroprotective in focal cerebral ischemic models in vivo. In this study, the direct effect of AST against oxygen and glucose deprivation (OGD) including neuronal injury and the underlying mechanisms in vitro were investigated. 5 h OGD followed by 24 h of reperfusion [adding bac...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/s10571-014-0059-4
更新日期:2014-08-01 00:00:00
abstract::1. In this study we investigated the effect of 7-nitroindazole (7-NI), a preferential inhibitor of neuronal nitric oxide synthase (nNOS), on kainic acid (KA) induced neurotoxicity in rats. Choline acetyltransferase activity (CAT), a cholinergic marker, and histological changes were employed to assess neurotoxicity. 2....
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1023/a:1021877512519
更新日期:2002-12-01 00:00:00
abstract::1. A novel tridecapeptide was isolated from extracts of bovine adrenal medulla chromaffin vesicles and the primary structure determined to be SVPHFSDEDKDPE. 2. This peptide is identical to the C termini of human and porcine 7B2 and is highly homologous to the same region of the mouse and Xenopus lavis protein. 3. In a...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/BF00733755
更新日期:1993-06-01 00:00:00
abstract::The intention of this review is to emphasize the current knowledge about the extent and importance of the substances co-localized with magnocellular arginine vasopressin (AVP) and oxytocin (OXY) as potential candidates for the gradual clarification of their actual role in the regulation of hydromineral homeostasis. Ma...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章,评审
doi:10.1007/s10571-008-9306-x
更新日期:2008-12-01 00:00:00
abstract::Cerebral cavernous malformations (CCM) are vascular malformations associated with abnormally dilated blood vessels and leaky capillaries that often result in hemorrhages. Despite recent advances, precise understanding of the cellular and molecular mechanism leading to the pathogenesis of CCM remains elusive. Emerging ...
journal_title:Cellular and molecular neurobiology
pub_type: 杂志文章
doi:10.1007/s10571-018-0602-9
更新日期:2018-10-01 00:00:00