Abstract:
:In this study we have examined the susceptibility of the mitochondrial respiratory chain of astrocytes and astrocytes depleted of glutathione to peroxynitrite exposure. Astrocytes, as reported previously by us, appeared resistant to the actions of peroxynitrite. In contrast, depletion (-94%) of astrocytic glutathione rendered the cells susceptible with mitochondrial complexes I and II/III being decreased in activity by 80 and 64%, respectively, after peroxynitrite exposure. Furthermore, cell death, as judged by lactate dehydrogenase release, was significantly increased (+81%) in the glutathione-depleted astrocytes exposed to peroxynitrite. Glutathione depletion alone had no effect on any of the measured parameters. It is concluded that glutathione is an important intracellular defence against peroxynitrite and that when glutathione levels are compromised the mitochondrial respiratory chain is a vulnerable target and cell death ensues. In view of the relative paucity of neuronal glutathione, it is possible that astrocyte-derived peroxynitrite may, in certain pathological conditions, be released and diffuse into neighboring neurones where mitochondrial damage may occur.
journal_name
Dev Neuroscijournal_title
Developmental neuroscienceauthors
Barker JE,Bolaños JP,Land JM,Clark JB,Heales SJdoi
10.1159/000111432subject
Has Abstractpub_date
1996-01-01 00:00:00pages
391-6issue
5-6eissn
0378-5866issn
1421-9859journal_volume
18pub_type
杂志文章abstract::Evidence from retroviral marking techniques and immortalized cell lines indicates that multipotential stem cells exist in many areas of the developing central nervous system. However, the factors that influence the commitment of these stem cells into distinct neuronal or glial lineages are not known. We have created a...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000111301
更新日期:1995-01-01 00:00:00
abstract::The metabolism of [1-13C]D-glucose by astrocytes, neurons and mixed astroglial/neuronal cultures derived from the striatum of fetal rats was studied using NMR. Metabolic activity was studied in resting and depolarized cells (55 mM K+), with dibutyryl cyclic-AMP added to the medium to promote cell differentiation, and ...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000111346
更新日期:1993-01-01 00:00:00
abstract::The cell line MN9D, a fusion of embryonic ventral mesencephalic and neuroblastoma cells, is extensively used as a model of dopamine (DA) neurons because it expresses tyrosine hydroxylase and synthesizes and releases DA. These cells are also used to test mechanisms and potential therapeutics relevant to the loss of DA ...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000095115
更新日期:2006-01-01 00:00:00
abstract::The current work tested the hypothesis that the zinc status of a cell influences its sensitivity to iron-induced oxidative stress. Human IMR-32 neuroblastoma cells were cultured for 24 h in nonchelated control media (5 microM zinc; 4.5 microM iron), or in media that was treated with DTPA to reduce its zinc content (ch...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000065691
更新日期:2002-01-01 00:00:00
abstract::The Notch signaling pathway is important at several stages of retinal development including the differentiation of retinal ganglion cells and Muller glia. The downstream effectors of Notch signaling, Hes1 and Hes5, have been shown to be critical in the retina as well. While Notch activity directly regulates Hes1 and H...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000090759
更新日期:2006-01-01 00:00:00
abstract::The effect of undernutrition on the activity of glutamate decarboxylase (GAD) and choline acetyltransferase (ChAc) (markers for the GABA-ergic and the cholinergic transmitter system, respectively) was studied in various parts of the rat brain at the age of 10, 15 and 21 days, and at day 54 following 33 days of rehabil...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000112551
更新日期:1978-01-01 00:00:00
abstract::The myelin-associated glycoprotein (MAG) is a 100 K-dalton, integral membrane glycoprotein containing 30% carbohydrate that is in central and peripheral myelin sheaths. Recent research on its function during normal myelinogenesis and possible roles in the pathology of demyelinating diseases is reviewed. Emphasis is pl...
journal_title:Developmental neuroscience
pub_type: 杂志文章,评审
doi:10.1159/000112356
更新日期:1983-01-01 00:00:00
abstract::NeuroD is a basic helix-loop-helix (bHLH) transcription factor cloned from a two hybrid screen designed to search for new bHLH proteins. In our previous studies, we showed that NeuroD could convert Xenopus ectoderm into fully differentiated neurons and that it could prematurely differentiate neural precursor cells in ...
journal_title:Developmental neuroscience
pub_type: 杂志文章,评审
doi:10.1159/000111182
更新日期:1997-01-01 00:00:00
abstract::Hypoxic-ischemic brain injury is a leading cause of neurodevelopmental morbidities in preterm and full-term infants. Blood-brain barrier dysfunction represents an important component of perinatal hypoxic-ischemic brain injury. The extracellular matrix (ECM) is a vital component of the blood-brain barrier. Matrix metal...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000489700
更新日期:2018-01-01 00:00:00
abstract::Our previous studies of H218, a sphingosine 1-phosphate (S1P) receptor and a member of the G-protein-coupled receptor superfamily, suggest that it may participate in mammalian nervous system development. Thus, brain levels of H218 mRNA are higher during early neurogenesis than postnatally. In addition, embryonic H218 ...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000017452
更新日期:2000-01-01 00:00:00
abstract::We have shown that the developmentally regulated appearance of the two myelin-associated glycoprotein (MAG) polypeptides in normal mouse brain myelin does not reflect the developmental pattern of differential splicing of primary gene transcripts as determined earlier by RNase protection assays. Contrary to expectation...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000111857
更新日期:1990-01-01 00:00:00
abstract::In the presence of nerve growth factor (NGF) PC12 pheochromocytoma cells develop properties of sympathetic neurons and extend long microtubule-containing neurites. PC12 cell microtubule protein was isolated using an assembly and disassembly procedure, either directly from an unlabeled cell extract or by copolymerizati...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000112330
更新日期:1983-01-01 00:00:00
abstract::The effects of hyperbaric exposure with high oxygen concentration on the physical activity of developing male rats were investigated. Five-week-old male rats were exposed to an atmospheric pressure of 1.25 with an oxygen concentration of 36.0% for 12 h (7.00-19.00 h) and exercised voluntarily for 12 h (19.00-7.00 h) d...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000097319
更新日期:2007-01-01 00:00:00
abstract::Preterm birth is an important cause of perinatal brain injury (PBI). Neurological injury in extremely preterm infants often begins in utero with chorioamnionitis (CHORIO) or inflammation/infection of the placenta and concomitant placental insufficiency. Studies in humans have shown dysregulated inflammatory signaling ...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000497273
更新日期:2019-03-28 00:00:00
abstract::This study of the molecular forms of acetylcholinesterase in several rat brain regions using sucrose gradient centrifugation has revealed only two major forms throughout postnatal development: the 4S and 10S. In all regions studied (cerebral cortex, cerebellum, caudate nucleus, hippocampus, pons-medulla and superior c...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000112383
更新日期:1980-01-01 00:00:00
abstract::Primary cultures of cerebellum from 5-day-old rats indicated that proliferating neuroblasts synthesize and release nerve growth factor (NGF). Since NGF promotes DNA synthesis in these cells, our findings demonstrate that the early developing cerebellum is a suitable physiological model for studying the autocrine mitog...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000111673
更新日期:1992-01-01 00:00:00
abstract::The rate of glutaminase-dependent metabolism of glutamine in intact astrocytes was determined under conditions in which the extracellular concentration of glutamine was varied between 0.2 and 3.2 mM glutamine for control and dibutyryl cyclic AMP (dBcAMP)-treated cells. Glutamine metabolism by intact cells increased wi...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000111410
更新日期:1996-01-01 00:00:00
abstract::The medial frontal cortex (MFC) is involved in the temporal organization of behaviour. It receives timing information from the master circadian clock in the suprachiasmatic nucleus (SCN), and exhibits daily oscillations in gene expression itself. In this study, we evaluate various properties of circadian rhythms of lo...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000232559
更新日期:2009-01-01 00:00:00
abstract::Cell polarity is one of the most basic properties of all normal cells and loss of polarity is a hallmark of cancer. While multiple proteins have been implicated in the maintenance of cell polarity, the functionally related neoplastic tumor suppressors Lethal giant larvae (Lgl), Scribble and Disks large comprise a uniq...
journal_title:Developmental neuroscience
pub_type: 杂志文章,评审
doi:10.1159/000090749
更新日期:2006-01-01 00:00:00
abstract::The myelin-associated glycoprotein (MAG) in primary cultures of oligodendrocytes is subject to phosphorylation in the absence of neurons. The positive response of this phosphorylation to vanadate suggests that one of the modified sites in MAG is phosphotyrosine. We found that phosphorylation was enhanced by brief trea...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000112192
更新日期:1991-01-01 00:00:00
abstract::The auditory system of the cricket has the unusual ability to respond to deafferentation by compensatory growth and synapse formation. Auditory interneurons such as ascending neuron 2 (AN-2) in the cricket Gryllus bimaculatus possess a dendritic arbor that normally grows up to, but not over, the midline of the prothor...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000322887
更新日期:2011-01-01 00:00:00
abstract::Maternal inflammation has been linked to neurodevelopmental and neuropsychiatric disorders such as cerebral palsy, schizophrenia, and autism. We had previously shown that intrauterine inflammation resulted in a decrease in serotonin, one of the tryptophan metabolites, and a decrease in serotonin fibers in the sensory ...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000471509
更新日期:2017-01-01 00:00:00
abstract::In some cells, the development of voltage-gated channels requires synaptic input, while in others it does not. Here we investigate whether the sodium and potassium currents in the skeletal muscle of zebrafish sofa potato (sop(-/-)) mutants develop normally. Zebrafish sop(-/-) mutants do not express nicotinic acetylcho...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000207794
更新日期:2009-01-01 00:00:00
abstract::Striatal neurons are highly vulnerable to hypoxia-ischemia (HI) in term newborns. In a piglet model of HI, striatal neurons develop oxidative stress and organelle disruption by 3-6 h of recovery and ischemic cytopathology over 6-24 h of recovery. We tested the hypothesis that early treatment with the antioxidants EUK-...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000327243
更新日期:2011-01-01 00:00:00
abstract::Developmental changes in gangliosides in the course of neurite outgrowth were examined in dissociated fetal rat cerebral neurons in culture. About a 2-fold increase in ganglioside levels was seen with the progression of neurite formation for up to 24 h in predominantly neuronal cultures. Ganglioside patterns appeared ...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000111647
更新日期:1992-01-01 00:00:00
abstract::Dissociated cells of cerebral hemispheres from 8-day-old chick embryos were cultivated for 8 days in polylysine-coated Petri dishes. Changes of DNA, RNA, total proteins, putrescine, spermidine, spermine, free amino acids and enzymes involved in polyamine and GABA metabolism were studied throughout neuronal development...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000112755
更新日期:1981-01-01 00:00:00
abstract::Adult neuronal ceroid lipofuscinosis (NCL), also called Kufs' disease, is clinically distinct from the other NCLs. It is a rare condition which is difficult to diagnose. More than 50% of the reported cases of Kufs' disease are not adult NCL and correspond very likely to a heterogeneous spectrum of lipidoses. Various c...
journal_title:Developmental neuroscience
pub_type: 杂志文章,评审
doi:10.1159/000112182
更新日期:1991-01-01 00:00:00
abstract::A total of 216 male and female albino Wistar rats (Rattus norvegicus) between 10 and 60 days old from 42 litters were studied to determine mast cell characteristics within the thalamus. Whereas the mean numbers of mast cells within both the parenchyma and leptomeninges (combined) did not change appreciably after 15 da...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000112759
更新日期:1981-01-01 00:00:00
abstract::Perinatal hypoxic ischemic (HI) brain injury is a leading cause of long-term neurological handicap in newborn babies. Recently, excessive activity of matrix metalloproteinases (MMPs), and in particular MMP-9, has been implicated in the aetiology of HI injuries to the immature brain. Our previous study suggested that M...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000343257
更新日期:2012-01-01 00:00:00
abstract::The cytoskeleton of a newly isolated mouse embryo brain-derived cell line and of dissected mesencephalon-rhombencephalon samples of the 10- to 11-day-old mouse embryo, constituted of a ventricular zone only, has been examined by immunocytochemistry, electrophoretic separation and Western blotting techniques. In accord...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000111612
更新日期:1987-01-01 00:00:00