Abstract:
:Changes of 5'-nucleotidase (5'-N) activity during subcultivation of C6 clonal rat glioma cells were studied histochemically, cytochemically and biochemically. Two different cell populations were seeded with high or low cell density respectively. 5'-N activity in cultured cells increased continuously in both populations. The enzyme activity was always higher in the cells growing in high density than in those growing in low density, and this difference became statistically significant after 6 days of subcultivation. It seemed likely that the increase in 5'-N activity depended on cell density, not on the frequency of mitosis. Cytochemically, enzyme activity was detected on the outer surface of the plasma membrane of cell bodies or cell processes. Strong activity was found on the processes and cell membranes where cells touched each other. In the regions where cells had intimate cell-to-cell contact, marked elevation of the enzyme activity was seen. Increased 5'-N activity, which appeared to depend on cell density, was considered to be related with this cell-to-cell contact.
journal_name
Neuropathol Appl Neurobioljournal_title
Neuropathology and applied neurobiologyauthors
Amano S,Sasahara M,Yamada E,Kataoka H,Hazama Fdoi
10.1111/j.1365-2990.1985.tb00014.xsubject
Has Abstractpub_date
1985-05-01 00:00:00pages
161-70issue
3eissn
0305-1846issn
1365-2990journal_volume
11pub_type
杂志文章abstract:AIMS:Limb-girdle muscular dystrophy R9 (LGMDR9) is an autosomal recessive disorder caused by mutations in the fukutin-related protein gene (FKRP), encoding a glycosyltransferase involved in α-dystroglycan modification. Muscle atrophy, a significant feature of LGMDR9, occurs by a change in the normal balance between pro...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/nan.12684
更新日期:2020-12-18 00:00:00
abstract::In many experimental models of skeletal muscle damage and in human muscle disease, empty basement membrane tubes remain following the destruction of muscle fibres. In the present study we test the hypothesis that the empty basement membrane tubes play an essential role in the orientation of regenerating muscle fibres....
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.1990.tb01159.x
更新日期:1990-06-01 00:00:00
abstract:AIMS:This study explores the neuroprotective effects and mechanisms of N-acetyl-L-cysteine (NAC) in mice exposed to cadmium (Cd). METHODS:NAC (150 mg/kg) was intraperitoneally administered to mice exposed to Cd (10-50 mg/L) in drinking water for 6 weeks. The changes of cell damage and death, reactive oxygen species (R...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/nan.12103
更新日期:2014-10-01 00:00:00
abstract:AIMS:Increasing evidences suggest a similarity in the pathophysiological mechanisms of neuronal cell death in amyotrophic lateral sclerosis (ALS) and myofibre degeneration in sporadic inclusion body myositis (sIBM). The aim of this study is to elucidate the involvement of ALS-causing proteins in the pathophysiological ...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.2012.01297.x
更新日期:2013-06-01 00:00:00
abstract::Cyclins are important regulators of the cell cycle; there is increasing evidence that some cyclins are positively involved in carcinogenesis. Amplification and translocation of the cyclin genes and overexpression of their mRNAs and proteins have been observed in a variety of tumours. We studied cyclin A protein in ast...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1046/j.1365-2990.1998.00114.x
更新日期:1998-06-01 00:00:00
abstract::Oligodendrocyte progenitors, originating in the ventral ventricular zone of the embryonic rodent spinal cord, migrate and differentiate into the oligodendrocytes myelinating the future white matter. Transcripts for the dm-20 isoform of the proteolipid protein (plp) gene are detectable initially in cells of the ventral...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:
更新日期:1996-06-01 00:00:00
abstract:AIMS:Glioblastomas are highly aggressive and treatment resistant. Increasing evidence suggests that tumour-associated macrophages/microglia (TAMs) facilitate tumour progression by acquiring a M2-like phenotype. Our objective was to investigate the prognostic value of TAMs in gliomas using automated quantitative double ...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/nan.12428
更新日期:2018-02-01 00:00:00
abstract::Alzheimer's and Parkinson's diseases (AD, PD) are among the most common neurodegenerative disorders in adults. Both AD and PD have a complex aetiology, and it is widely considered that genetic factors, acting independently or in concert with other genetic and/or environmental factors, modify the risk of developing the...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:
更新日期:1997-08-01 00:00:00
abstract::Dementia with Lewy bodies (DLB) is characterized by the widespread presence of Lewy bodies (LBs) in the brain. alpha-Synuclein, the main component of LBs, is expressed as two main isoforms (112 and 140), but little is known about their differential expression in the brain. We compared alpha-synuclein 112 and alpha-syn...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.2004.00572.x
更新日期:2004-12-01 00:00:00
abstract::The development of granule cells and the formation of synapses with mossy fibres were investigated in cerebella from jaundiced (j/j) Gunn rats with hereditary hyperbilirubinemia. The external granular layer was thinner than that in cerebella from heterozygous (+/j) Gunn rats without hyperbilirubinemia on days 12 and 1...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.1993.tb00445.x
更新日期:1993-08-01 00:00:00
abstract::A few nanograms of tetanus toxin injected into a rat hippocampus causes a chronic epileptic syndrome characterized by brief seizures that recur intermittently for about 6 weeks. Cognitive and other behavioural impairments persist after the seizures and other epileptic electrographic activity have remitted, and may be ...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.1992.tb00764.x
更新日期:1992-02-01 00:00:00
abstract::Although intrinsic tumours of the brain seldom metastasize to distant sites, their diffuse, infiltrative-invasive growth within the brain generally precludes successful surgical and adjuvant therapy. Hence, attention has now focused on novel therapeutic approaches to combat brain tumours that include the use of anti-i...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1046/j.0305-1846.2000.00298.x
更新日期:2001-02-01 00:00:00
abstract::Semliki Forest virus infections in mice produce an encephalitis with demyelination. If before giving the virus the mice are treated with muramyl dipeptide in Freund's incomplete adjuvant, there is a significant increase in demyelination. If ovalbumin is added to the above and then followed after an interval by a secon...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.1988.tb01339.x
更新日期:1988-11-01 00:00:00
abstract::Productive infection of the central nervous system by HIV predominantly involves the white matter and basal ganglia. Involvement of the cerebral cortex with neuronal loss is also described in AIDS patients but not in asymptomatic HIV-positive patients. The mechanism of neuronal damage is unknown. To enquire whether ne...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.1995.tb01053.x
更新日期:1995-06-01 00:00:00
abstract::We have previously demonstrated that amyloid beta (Abeta) peptide is acutely toxic to retinal neurones in vivo and that this toxicity is mediated by an indirect mechanism. We have now extended these studies to look at the chronic effect of intravitreal injection of Abeta peptides on retinal ganglion cells (RGC), the p...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.2005.00666.x
更新日期:2005-10-01 00:00:00
abstract::Total protein, alphafetoprotein, albumin, prealbumin, alpha-1-antitrypsin, transferrin and ceruloplasmin levels were measured in samples of human fetal and neonatal cerebrospinal fluid (CSF) (97 cases), obtained between 12 and 41 weeks of gestation. In 39 of these cases (13 to 40 weeks gestation) plasma was also avail...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.1991.tb00748.x
更新日期:1991-12-01 00:00:00
abstract::The epidermal growth factor receptor (EGFR) is a protooncogene that is frequently observed with alterations in late stage gliomas, suggesting an important role of this gene in glial tumorigenesis and progression. In this study we evaluated an antisense EGFR approach as an alternative therapeutic modality for glioblast...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1046/j.1365-2990.1998.00128.x
更新日期:1998-10-01 00:00:00
abstract:AIMS:Normal neurovascular coupling, mediated by the fine interplay and communication of cells within the neurovascular unit, is critical for maintaining normal brain activity and cognitive function. This study investigated whether, with advancing age there is disruption of neurovascular coupling and specific cellular c...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/nan.12375
更新日期:2017-10-01 00:00:00
abstract:AIMS:Nakajo-Nishimura syndrome (NNS) is an autosomal recessive disease caused by biallelic mutations in the PSMB8 gene that encodes the immunoproteasome subunit β5i. There have been only a limited number of reports on the clinicopathological features of the disease in genetically confirmed cases. METHODS:We studied cl...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/nan.12614
更新日期:2020-10-01 00:00:00
abstract::Sarcoplasmic masses contain disorganized myofibrillar material and are a striking feature of myotonic dystrophy. However their significance is still unclear. Using immunocytochemistry we studied the expression of cytoskeletal proteins (desmin and vimentin), dystrophin, markers of myogenic differentiation (foetal myosi...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.2004.00602.x
更新日期:2005-02-01 00:00:00
abstract::The nature of the glial and inflammatory cell responses to infection in scrapie-affected brains was studied in terminally-affected mice of five scrapie models. There were marked astrocytic and microglial responses. Microglia showed increased staining of the surface antigens F4/80, leucocyte-common antigen, type 3 comp...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.1994.tb00956.x
更新日期:1994-02-01 00:00:00
abstract::Telomerase is a ribonucleoprotein enzyme complex that synthesizes telomere DNA. It is detected in 85-90% of malignant tumours in humans, but not in most somatic cells. Because telomerase plays a critical role in cell immortality, it represents an important target for anticancer therapies. We have previously shown that...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.2006.00776.x
更新日期:2006-12-01 00:00:00
abstract::Dysfunction of the ubiquitin-dependent proteolytic pathway contributes to progressive accumulation of ubiquitinated protein inclusions in neurodegenerative disorders, such as Parkinson's disease (PD). Ubiquitin C-terminal hydrolase-L1 (UCH-L1), alternatively designated protein gene product 9.5 (PGP9.5), is a neural de...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1046/j.1365-2990.2001.00313.x
更新日期:2001-04-01 00:00:00
abstract:AIMS:Apolipoprotein A-I (apoA-I), the principal apolipoprotein associated with high-density lipoproteins in the periphery, is also found at high concentrations in the cerebrospinal fluid. Previous studies have reported either no impact or vascular-specific effects of apoA-I knockout (KO) on β-amyloid (Aβ) pathology. Ho...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/nan.12556
更新日期:2019-12-01 00:00:00
abstract:AIMS:Insufficient oligodendroglial differentiation of oligodendroglial progenitor cells (OPCs) is suggested to be responsible for remyelination failure and astroglial scar formation in Theiler's murine encephalomyelitis (TME). The aim of the present study is to identify molecular key regulators of OPC differentiation i...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/nan.12133
更新日期:2015-04-01 00:00:00
abstract::Professional boxers and other contact sport athletes are exposed to repetitive brain trauma that may affect motor functions, cognitive performance, emotional regulation and social awareness. The term of chronic traumatic encephalopathy (CTE) was recently introduced to regroup a wide spectrum of symptoms such as cerebe...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2990.2011.01186.x
更新日期:2011-10-01 00:00:00
abstract::Tubular vesicular and net-like dissolution of myelin sheaths associated with complete demyelination and preservation of axons, is described in the brain, obtained within 4 h of death, from a patient who died with acute multiple sclerosis (MS). It was rare, being found in only three out of twenty-three blocks examined,...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.1979.tb00627.x
更新日期:1979-08-01 00:00:00
abstract::It has previously been suggested that the pathological abnormalities seen in muscle biopsies from patients with motor neuron disease (MND) are of predictive value in relation to the rate of progression of the disease. In this study, quadriceps muscle biopsies from 19 patients with MND and 20 age matched controls were ...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.1987.tb00071.x
更新日期:1987-11-01 00:00:00
abstract::Clinicopathological observations suggest there is considerable overlap between vascular dementia (VaD) and Alzheimer's disease (AD). We used immunochemical methods to compare quantities of amyloid-beta (Abeta) peptides in post mortem brain samples from VaD, AD subjects and nondemented ageing controls. Total Abeta pept...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.2006.00696.x
更新日期:2006-04-01 00:00:00
abstract:INTRODUCTION:Magnetic resonance imaging (MRI) cerebral microbleeds (CMB) arise from ferromagnetic haemosiderin iron assumed to derive from extravasation of erythrocytes. Light microscopy of ageing brain frequently reveals foci of haemosiderin from single crystalloids to larger, predominantly perivascular, aggregates. T...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/nan.12062
更新日期:2014-04-01 00:00:00