Abstract:
:Acoustic overstimulation causes apoptotic cell death in the cochlea. This death process is mediated, in part, by the mitochondrial signaling pathway involving Bcl-2 family proteins. Myeloid cell leukemia sequence 1 (Mcl-l) is an antiapoptotic member of the Bcl-2 family. Its involvement in noise-induced hair cell death has not been characterized. Here we report the endogenous expression and the noise-induced expression of Mcl-1 in Sprague Dawley rat cochleae. In the sensory epithelia of normal cochleae, there is strong constitutive expression of Mcl-1 mRNA, with an expression level higher than that of many other Bcl-2 family genes. The Mcl-1 protein is preferentially expressed in outer hair cells. After exposure to a high level of continuous noise at 115-dB sound pressure level for 1 hr, Mcl-1 expression displays a time-dependent alteration, with up-regulation of Mcl-1 mRNA at 4 hr postexposure and protein up-regulation at 1 day postexposure. Western blot analysis reveals the up-regulated Mcl-1 as the full-length form of Mcl-1. Immunolabeling of the Mcl-1 protein reveals the early increase in Mcl-1 immunoreactivity in the nuclear region of the hair cells displaying apoptotic phenotypes and a subsequent increase in survival hair cells. These results suggest that Mcl-1 is involved in the regulation of hair cell pathogenesis resulting from acoustic stress, possibly by influencing the nuclear events of apoptosis.
journal_name
J Neurosci Resjournal_title
Journal of neuroscience researchauthors
Hu BH,Cai Qdoi
10.1002/jnr.22333subject
Has Abstractpub_date
2010-06-01 00:00:00pages
1812-21issue
8eissn
0360-4012issn
1097-4547journal_volume
88pub_type
杂志文章abstract::Damage to the lateral nucleus of the septum in the rat resulted in atypical learning to a previously meaningless stimulus. Nonreinforced preexposure to a stimulus normally makes more difficult subsequent use of that stimulus for learning. The effect of this preexposure on learning is termed latent inhibition and was d...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490040309
更新日期:1979-01-01 00:00:00
abstract::Understanding the pathway for amyloid percursor protein (APP) catabolism has become an important line of investigation. APP is a ubiquitous membrane bound protein that is rapidly cleaved at the membrane, yielding a secreted protein identical to protease nexin II and an internalized 11.5 kDa 100 residue C terminal deri...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490330121
更新日期:1992-09-01 00:00:00
abstract::Alterations in the 5-HT2A receptor gene expression in the prefrontal cortex have been suggested to play a role in the pathophysiology and pharmacotherapy of schizophrenia. This study measured mRNA encoding 5-HT2A receptor in the left superior frontal gyrus from chronic elderly schizophrenics (n = 21) with varying neur...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:
更新日期:2000-01-15 00:00:00
abstract::Abdominal muscle electromyograms were monitored in response to graded mechanical loads added to either inspiration or expiration in anesthetized cats. The surgical preparation, the apparatus, and the levels of loads applied (resistive, tracheal occlusion, and continuous positive pressure) were matched with those emplo...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490130413
更新日期:1985-01-01 00:00:00
abstract::Fast-scan cyclic voltammetry (FSCV) is an established method for measuring dopamine (DA) levels in the brain in real time. However, it is difficult to discriminate DA from other monoamines such as serotonin (5-hydroxytryptamine, 5-HT) and norepinephrine (NE). We report a novel DA-specific biosensor consisting of a car...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.24193
更新日期:2018-05-01 00:00:00
abstract::In an effort to identify genes involved in neuronal differentiation, we have used representational difference analysis (RDA) to clone cDNAs that are preferentially induced by nerve growth factor (NGF) vs. epidermal growth factor (EGF) in PC12 pheochromocytoma cells. We now report the cloning of a previously unknown pr...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.1058
更新日期:2001-04-15 00:00:00
abstract::Transient global ischemia causes delayed white matter injury to the brain with oligodendrocyte (OLG) death and myelin breakdown. There is increasing evidence that hypoxia may be involved in several diseases of the white matter, including multiple sclerosis, vascular dementia, and ischemia. Matrix metalloproteinases (M...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.22257
更新日期:2010-03-01 00:00:00
abstract::Preterm birth results in significant cognitive and motor disabilities, but recent evidence suggests that there is variable recovery over time. One possibility that may explain this variable recovery entails variable neurogenic responses in the subventricular zone (SVZ) following the period of chronic hypoxia experienc...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21597
更新日期:2008-05-01 00:00:00
abstract::Experiments were conducted with the aid of intracellular microelectrodes to study physiological properties of neuropile glial cells in the central nervous system of the medicinal leech. The results showed significant contributions of both K+ and Cl- ions to the membrane potential. The transmitter substance 5-hydroxytr...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490070108
更新日期:1982-01-01 00:00:00
abstract::A novel approach was developed to raise a panel of monoclonal antibodies (mAb) against brain antigens using Xenopus oocytes as immunological vectors. Xenopus oocytes were injected to express proteins encoded by brain-derived mRNA extracted from rat cerebral cortex. A crude membrane preparation from mRNA-injected oocyt...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490290109
更新日期:1991-05-01 00:00:00
abstract::The effects of cations on the spontaneous and potassium-stimulated taurine release from mouse cerebral cortex slices were assessed with an emphasis on the as yet unestablished calcium dependence of the stimulated release. Spontaneous and stimulated GABA release was analyzed for comparison. A depolarizing concentration...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490170316
更新日期:1987-01-01 00:00:00
abstract::The analysis of proteins in damaged myelin is crucial to clarify the mechanisms of dysmyelination and demyelination. In the present study, proteomic analysis of myelin using a modified two-dimensional electrophoresis (2-DE) method was carried out to obtain a better understanding of myelin biology. Although standard 2-...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21547
更新日期:2008-03-01 00:00:00
abstract::Activation of proteolytic enzymes, including the caspase family of proteinases, is a feature characteristic of the apoptotic program. In the present study, we examined a potential role of intracellular proteinases in the death of neuronal PC12 and primary cultured rat microglial cells induced by 6-hydroxydopamine (6-O...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4547(19981015)54:2<214::AID-JNR
更新日期:1998-10-15 00:00:00
abstract::Neuron expression of the cytokine tumor necrosis factor-alpha (TNF), and the regulation of the levels of TNF by alpha(2)-adrenergic receptor activation were investigated. Adult rat hippocampal neurons and phorbol ester (PMA)-differentiated SH-SY5Y cells were examined. Intracellular levels of TNF mRNA accumulation, as ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.10101
更新日期:2002-01-15 00:00:00
abstract::Leptin is a potent AMP kinase (AMPK) inhibitor that induces neuroprotection, neurogenesis, and angiogenesis when administered immediately after stroke. To dissociate these effects, we explored the effects of delayed administration of leptin, at 10 days after stroke onset, on neurogenesis and angiogenesis after stroke....
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.23147
更新日期:2013-02-01 00:00:00
abstract::The effects of treatment with a high dose of nandrolone or testosterone on nerve growth factor (NGF) levels and NGF low-affinity receptor (p75-NGFr) distribution in the brain were analyzed. Nandrolone, subcutaneously injected in rats for several weeks, caused an increase of NGF levels in the hippocampus and septum and...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(sici)1097-4547(19970115)47:2<198::aid-jnr
更新日期:1997-01-15 00:00:00
abstract::Dissociated embryonic rat ventral mesencephalon containing the developing A8-A10 dopamine (DA) neurons was cultured alone or in the presence of a 10 mm segment of adult rat sciatic nerve that had been explanted and maintained in separate culture for 72 hours prior to introduction to mesencephalic cultures. Nerve segme...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490270318
更新日期:1990-11-01 00:00:00
abstract::The brain acid-soluble protein BASP1 (CAP-23, NAP-22) belongs to the family of growth-associated proteins, which also includes GAP-43, a protein recently shown to regulate neural cell adhesion molecule (NCAM)-mediated neurite outgrowth. Here, the effects of BASP1 overexpression were investigated in PC12E2 cells and pr...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21678
更新日期:2008-08-01 00:00:00
abstract::Huntington's disease (HD) is a progressive neurodegenerative disorder caused by an expanded CAG repeat within the huntingtin (HTT) gene. The Q140 and HdhQ150 knock-in HD mouse models were generated such that HdhQ150 mice have an expanded CAG repeat inserted into the mouse Htt gene, whereas in the Q140s, mouse exon 1 H...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.24493
更新日期:2019-12-01 00:00:00
abstract::Inhibitory luminopsins (iLMO2) integrate opto- and chemo-genetic approaches and allow for cell-type specific inhibition of neuronal activity. When exposed to a Renilla luciferase substrate, Coelenterazine (CTZ), iLMO2 generates bioluminescence-mediated activation of its amino-terminal halorhodopsin, resulting in neuro...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.24109
更新日期:2020-03-01 00:00:00
abstract::The types of cells contacted by growth cones were examined in chick-quail and vice versa chimeras. Simultaneously, the presence of nonspecific cholinesterase (nChE) was monitored in developing peripheral nerves of these embryos. In all the chimeras studied, the growth cones were in contact with both Schwann cell proge...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490310211
更新日期:1992-02-01 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::Monoamine oxidase B (MAO-B) is well known as a therapeutic target for Parkinson's disease (PD). MAO-B inhibitors retain antiparkinsonism abilities to improve motor function and prevent neuronal loss by decreasing dopamine metabolism and oxidative stress in the brain. From the study to find novel antiparkinsonism drugs...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.23577
更新日期:2015-08-01 00:00:00
abstract::Grafting fetal ventral mesencephalon has been utilized to alleviate the symptoms of Parkinson's disease. One obstacle in using this approach is the limited outgrowth from the transplanted dopamine neurons. Thus, it is important to evaluate factors that promote outgrowth from fetal dopamine neurons. Proteoglycans (PGs)...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21465
更新日期:2008-01-01 00:00:00
abstract::Barbiturates are regularly used as an anesthetic for animal experimentation and clinical procedures and are frequently provided with solubilizing compounds, such as ethanol and propylene glycol, which have been reported to affect brain function and, in the case of (1)H NMR experiments, originate undesired resonances i...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.22212
更新日期:2010-02-01 00:00:00
abstract::Few diseases in clinical medicine cause as much diagnostic consternation as central nervous system (CNS) vasculitis because of its varying modes of presentation and frequently overlapping clinical and pathological features. There are no pathognomonic clinical or laboratory findings. The purpose of the present retrospe...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.10180
更新日期:2002-03-15 00:00:00
abstract::Nitric oxide (NO) is produced by the enzyme nitric oxide synthase (NOS) and has been implicated in inter- and intracellular communication in the nervous system. The present study was undertaken to assess the effects of sodium nitroprusside (SNP) and hydroxylamine (HOA), NO donors, on a dopamine (DA)-induced K+ current...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4547(19971101)50:3<450::AID-JNR
更新日期:1997-11-01 00:00:00
abstract::Traumatic injury to the adult central nervous system (CNS) results in a rapid response from resident astrocytes, a process often referred to as reactive astrogliosis or glial scarring. The robust formation of the glial scar and its associated extracellular matrix (ECM) molecules have been suggested to interfere with a...
journal_title:Journal of neuroscience research
pub_type: 杂志文章,评审
doi:10.1002/1097-4547(20010115)63:2<109::AID-JNR1002>3
更新日期:2001-01-15 00:00:00
abstract::Previous studies on the NG2 chondroitin sulfate proteoglycan have shown that NG2 is expressed on A2B5-positive O2A progenitor cells, which are known to respond to platelet-derived growth factor (PDGF). In the accompanying paper (Nishiyama et al.; J Neurosci Res 43:299-314, 1996) we show that on O2A progenitors in the ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4547(19960201)43:3<315::AID-JNR
更新日期:1996-02-01 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