Abstract:
:Cathepsin D-like activity in homogenates of five brain areas of 3-month-old and 24-month-old Fischer 344 rats was measured. With hemoglobin as substrate at pH 3.2, more than 90% of the activity was inhibited by pepstatin. In each area studied, activity was more than twice as high in the old rat brain: 140-160% higher in the cortex, cerebellum, pons-medulla, and striatum and 90-100% higher in the hippocampus and spinal cord. The greatly increased metabolic capacity in the absence of an increase in protein turnover may have a role in age-related pathological degeneration in the brain.
journal_name
J Neurosci Resjournal_title
Journal of neuroscience researchauthors
Kenessey A,Banay-Schwartz M,DeGuzman T,Lajtha Adoi
10.1002/jnr.490230412subject
Has Abstractpub_date
1989-08-01 00:00:00pages
454-6issue
4eissn
0360-4012issn
1097-4547journal_volume
23pub_type
杂志文章abstract::We have used adult mouse superior cervical ganglia (SCG) to study the role of mitogen activated protein (MAP) kinase activity during axonal outgrowth in vitro. An initial peak in activity within the first hours of culture was followed by a substantially higher activity after 1 to 2 days, a time when axons were activel...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4547(19980515)52:4<453::AID-JNR
更新日期:1998-05-15 00:00:00
abstract::Despite a large body of literature on the nociceptin (NC) opioid system in pain modulation, the mechanism of action of NC remains largely unexplored. Here, we investigated the role and mode of action of the spinal NC system in inflammatory pain. Preemptive intrathecal administration of NC attenuated thermal hyperalges...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21272
更新日期:2007-05-15 00:00:00
abstract::Ca(2+) influx through L-type Ca(2+) channels regulates several different cellular processes in developing Purkinje neurons, including activation of transcription factors and expression of cellular proteins. In the current studies, we examined the age dependence of these actions of Ca(2+) during the early developmental...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.20844
更新日期:2006-06-01 00:00:00
abstract::The induction of an inflammatory response and release of cytokines such as TNF may be involved in the age-related etiology of Alzheimer disease (AD). In the brain, microglia have been shown to produce a wide variety of immune mediators, including the pro-inflammatory cytokine tumor necrosis factor (TNF). We hypothesiz...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.1097
更新日期:2001-06-01 00:00:00
abstract::Damselfish neurofibromatosis is a naturally occurring disease of a tropical marine fish species. Affected fish exhibit peripheral nerve sheath tumors which contain morphologically abnormal Schwann cells (SC), similar to tumors encountered in the human disease neurofibromatosis type 1. Unitary A-type K channels in cell...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:
更新日期:1997-05-15 00:00:00
abstract::Using a canine model of classical late-infantile neuronal ceroid lipofuscinosis (CLN2 disease), a study was conducted to evaluate the potential pharmacological activity of recombinant human tripeptidyl peptidase-1 (rhTPP1) enzyme replacement therapy administered directly to the cerebrospinal fluid (CSF). CLN2 disease ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.23423
更新日期:2014-11-01 00:00:00
abstract::Both the adenosine analogue 2-chloro-adenosine (2-CA) and the reducing sugar deoxy-D-ribose (dRib) induce apoptosis of astroglial cells in rat brain primary cultures (Abbracchio et al.: Biochem Biophys Res Commun 213:908-915, 1995). The present study was undertaken to elucidate by both morphological and cytofluorimetr...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(sici)1097-4547(19970215)47:4<372::aid-jnr
更新日期:1997-02-15 00:00:00
abstract::Amyotrophic lateral sclerosis (ALS) is a progressive and fatal disease caused by the selective death of motor neurons. Between 5% and 10% of ALS patients have a genetically inherited form of the disease known as familial ALS (FALS), and approximately 20% of FALS patients have mutations in the SOD1 gene. Although the m...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21902
更新日期:2009-03-01 00:00:00
abstract::The c-Jun N-terminal kinase (JNK) is induced by cerebral ischemia and injurious blood components acutely after subarachnoid hemorrhage (SAH). We hypothesized that inhibition of JNK will prevent damage to the neurovascular unit in the early brain injury period after SAH. Ninety-nine male SD rats (300-350 g) were random...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21281
更新日期:2007-05-15 00:00:00
abstract::The function of the prion protein is unknown despite suggestions it binds copper. Radioactive copper (Cu(67)) was used to demonstrate that histidine-dependent uptake of copper by cerebellar cells in culture is related to the level of PrP(c) expression. Copper is released by neurones at the synapse. Veratridine-induced...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:
更新日期:1999-12-01 00:00:00
abstract::We present here a fast protocol that could be used to obtain highly purified cultures of maximal proliferating adult rat Schwann cells. These adult rat Schwann cells can be transfected in a nonbiological way using the physical transfection method of electroporation. Schwann cells are decisive in recovery of peripheral...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.20166
更新日期:2004-08-01 00:00:00
abstract::Heme oxygenase-1 (HO1) catalyzes oxidation of the heme molecule in concert with NADPH-cytochrome P450 reductase following the specific cleavage of heme into carbon monoxide, iron, and biliverdin, which is rapidly metabolized to bilirubin. HO1 is a stress-inducible protein that protects cells against oxidative injury, ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.10514
更新日期:2003-02-15 00:00:00
abstract::Brain-derived neurotrophic factor (BDNF) plays an important role in the differentiation, development, and survival of neural stem cells. In this study, we analyzed its effects on the stimulation of human umbilical cord blood-derived mesenchymal stem cells in terms of their potential to differentiate into neuron-like c...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21669
更新日期:2008-08-01 00:00:00
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journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.10136
更新日期:2002-02-15 00:00:00
abstract::The neonatal lesion with 6-hydroxydopamine (6-OHDA) in rodents induces juvenile hyperactivity and paradoxical hypolocomotor response to psychostimulants, in striking contrast to what is observed when similar lesions are carried out in adults. The early disruption of central dopaminergic pathways is followed by increas...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.20245
更新日期:2004-10-15 00:00:00
abstract::Microglia, the resident macrophages of the central nervous system, are the primary cells to respond to injury in the brain, both in inflammation, e.g., in multiple sclerosis, and trauma. Chemokines are potential mediators of microglial cell recruitment to sites of injury; thus, the ability of microglia to migrate in r...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4547(19990101)55:1<17::AID-JNR3
更新日期:1999-01-01 00:00:00
abstract::The extension of filopodia from growth cones of regenerating neurites from rat superior cervical ganglion neurons in tissue culture was studied. Cultures were grown on a thin layer of fibrous collagen and maintained in a medium containing serum and nerve growth factor. Time-lapse cinematography and computer-assisted m...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490130111
更新日期:1985-01-01 00:00:00
abstract::We used the Plp1-overexpressing transgenic mouse model to investigate whether progressive demyelination of axons results in adaptive changes involving mitochondria within the axons. These models have myelinated axons from birth but gradually lose myelin and develop axonal loss associated with progressive neurological ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21867
更新日期:2009-02-01 00:00:00
abstract::Contacts between horizontal and bipolar cells are described in the retina of the teleost Eugerres plumieri. A single, long expansion observed in the external cone horizontal cells makes contact by means of a terminal button with the cell body of a bipolar. It represents the only contact between this class of horizonta...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490060111
更新日期:1981-01-01 00:00:00
abstract::We have examined the expression and distribution of the extracellular matrix molecule tenascin-C in and around lesions of the thoracic dorsal columns in adult rats 3 days to 8 weeks after injury, using in situ hybridization, immunofluorescence, electron microscopy and immunoelectron microscopy. Numerous tenascin-C mRN...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:
更新日期:1997-08-15 00:00:00
abstract::In the rat brain, a heteromeric association between adenosine A(1) and purinergic P2Y(1) receptors has been demonstrated. It is suggested that this association plays an important role in the control of purine-mediated responses during pathophysiological conditions. Recently, we have demonstrated that these receptors c...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21727
更新日期:2008-10-01 00:00:00
abstract::gammadelta T cells represent a small subpopulation of T cells expressing a restricted repertoire of T-cell receptors and, unlike alphabeta T cells, function more as cells of the innate immune system. These cells are found in skin and mucosal sites as well as secondary lymphoid tissues and frequently act as first line ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章,评审
doi:10.1002/jnr.22176
更新日期:2010-01-01 00:00:00
abstract::Granulocyte colony-stimulating factor (G-CSF) and its related mechanisms were investigated to assess the potential for this factor to exert neuroprotective effects against spinal cord injury in mice. Recombinant human granulocyte colony-stimulating factor (rhG-CSF) was injected into mice spinal cord hemisection models...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.23362
更新日期:2014-06-01 00:00:00
abstract::We generated a new cell line, N38, by conditionally immortalizing mouse oligodendrocytes (OLs) at early stages of maturation. The morphology and marker expression pattern suggest N38 cells are similar to immature OLs. N38 cells were sensitive to changes in serum concentrations, and forcing the cells to differentiate i...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/1097-4547(20001101)62:3<319::AID-JNR1>3.0.
更新日期:2000-11-01 00:00:00
abstract::We used cDNA arrays to investigate molecular aspects of the differentiation of an immortalized line of oligodendroglial progenitors, and of immunopan-purified primary cultures of oligodendroglial progenitors, to immature oligodendroglia. Developmental regulation of the proteolipid and 2-hydroxyacylsphingosine 1-galact...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4547(20000201)59:3<430::AID-JNR
更新日期:2000-02-01 00:00:00
abstract::Here we assess the potential functional role of increased aquaporin 9 (APQ9) in astrocytes. Increased AQP9 expression was achieved in primary astrocyte cultures by transfection of a plasmid-containing green fluorescent protein fused to either wild-type or mutated human AQP9. Increased AQP9 expression and phosphorylati...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.24061
更新日期:2018-02-01 00:00:00
abstract::Little is known about the structural neural substrates that may contribute to sex differences in risk-taking propensity (RTP). A close association between risk-seeking behavior and the emotional-regulation network led us to hypothesize that the sex differences in RTP would be associated with sex differences in brain m...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.24504
更新日期:2020-02-01 00:00:00
abstract::We have shown previously that in oligodendrocytes, the transcription factor cyclic AMP response element binding protein (CREB) is maximally expressed immediately prior to the most rapid period of myelination in rat brain. We have begun to investigate the role of this protein during myelination by downregulating CREB s...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4547(19961001)46:1<98::AID-JNR1
更新日期:1996-10-01 00:00:00
abstract::The citric acid cycle forms a major metabolic hub and as such it is involved in many disease states involving energetic imbalance. In spite of the fact that it is being branded as a "cycle", during hypoxia, when the electron transport chain does not oxidize reducing equivalents, segments of this metabolic pathway rema...
journal_title:Journal of neuroscience research
pub_type: 杂志文章,评审
doi:10.1002/jnr.23196
更新日期:2013-08-01 00:00:00
abstract::A rodent model of Parkinson's disease, the 1-methyl-4-(2'-methylphenyl)-1,2,3,6-tetrahydropyridine treated mouse, was used to determine whether striatal dopamine levels recover following grafting adrenal medulla into the striatum. Four types of grafts were performed: 1) adult mouse adrenal medulla, 2) adult adrenal me...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490250303
更新日期:1990-03-01 00:00:00