Abstract：
:The TgCRND8 mouse model of Alzheimer's disease exhibits progressive cortical and hippocampal β-amyloid accumulation, resulting in plaque pathology and spatial memory impairment by 3 months of age. We tested whether TgCRND8 cognitive function is disrupted prior to the appearance of macroscopic plaques in an object recognition task. We found profound deficits in 8-week-old mice. Animals this age were not impaired on the Morris water maze task. TgCRND8 and littermate controls did not differ in their duration of object exploration or optokinetic responses. Thus, visual and motor dysfunction did not confound the phenotype. Object memory deficits point to the frontal cortex and hippocampus as early targets of functional disruption. Indeed, we observed altered levels of brain-derived neurotrophic factor (BDNF) messenger ribonucleic acid (mRNA) in these brain regions of preplaque TgCRND8 mice. Our findings suggest that object recognition provides an early index of cognitive impairment associated with amyloid exposure and reduced brain-derived neurotrophic factor expression in the TgCRND8 mouse.
journal_name
Neurobiol Agingjournal_title
Neurobiology of agingauthors
Francis BM,Kim J,Barakat ME,Fraenkl S,Yücel YH,Peng S,Michalski B,Fahnestock M,McLaurin J,Mount HTdoi
10.1016/j.neurobiolaging.2010.04.003subject
Has Abstractpub_date
2012-03-01 00:00:00pages
555-63issue
3eissn
0197-4580issn
1558-1497pii
S0197-4580(10)00160-0journal_volume
33pub_type
杂志文章abstract：:CR1 is a novel Alzheimer's disease (AD) gene identified by genome-wide association studies (GWAS). Recently, we showed that AD risk could be explained by an 18-kilobase insertion responsible for the complement component (3b/4b) receptor 1 (CR1)-S isoform. We investigated the relevance of the CR1 isoforms to AD in a Ca...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2012.07.001
更新日期：2012-12-01 00:00:00
abstract：:As a major characteristic of aging process, neuroinflammation is involved in the pathogenesis of several aging-related diseases including Alzheimer's disease (AD). Triggering receptor expressed on myeloid cells 2 (TREM2) is a newly identified risk gene for AD, which regulates inflammatory process in peripheral tissues...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2013.11.026
更新日期：2014-06-01 00:00:00
abstract：:Superficial layers I to III of the human cerebral cortex are more vulnerable toward Aβ peptides than deep layers V to VI in aging. Three models of layers were used to investigate this pattern of frailty. First, primary neurons from E14 and E17 embryonic murine cortices, corresponding respectively to future deep and su...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2013.08.005
更新日期：2014-02-01 00:00:00
abstract：:Pertinent animal models of age-related learning deficiencies are required to elucidate the mechanism of age-related learning deficiencies and to develop novel therapeutic drugs for age-related diseases such as learning defects. Among many strains of accelerated senescence prone, senescence-accelerated mouse (SAM), SAM...
journal_title：Neurobiology of aging
pub_type： 杂志文章,评审
doi：10.1016/s0197-4580(99)00006-8
更新日期：1999-03-01 00:00:00
abstract：:Amyotrophic lateral sclerosis (ALS) is a complex fatal neurodegenerative disease characterized by progressive degeneration and loss of upper motor neurons in the cerebral cortex and lower motor neurons in brainstem and spinal cord. We established the frequencies of mutations in 4 major ALS-associated genes, SOD1, TARD...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2014.11.011
更新日期：2015-03-01 00:00:00
abstract：:Previous studies found that polymorphisms rs2736990 and rs356220 in the alpha-synuclein (SNCA) gene increase the risk for Parkinson's disease (PD) in a Caucasian population. In consideration of the overlapping of clinical manifestations and pathologic characteristics among PD, amyotrophic lateral sclerosis (ALS), and ...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2014.07.014
更新日期：2014-12-01 00:00:00
abstract：:A study on familial Parkinson disease (PD) described 4 variants in the gene TMEM230 (Chr. 20p13) as the cause of PD. The aim of this study was to test if variants in the TMEM230 gene are associated with PD in 2 independent American European data sets. No variants in the TMEM230 region were found associated with PD, ag...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2017.03.014
更新日期：2017-08-01 00:00:00
abstract：:RACK1 (receptor for activated C-kinase 1), an anchoring protein that shuttles activated PKC to cellular membranes, plays an important role in PKC-mediated signal transduction pathways. A significant loss of RACK1 has been found in the brain of aging animals and Alzheimer's disease (AD) patients, which implicates the p...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2009.10.017
更新日期：2011-10-01 00:00:00
abstract：:The present study investigated if a causal relation exists between serum concentrations of precursors and metabolites of cholesterol and cognitive performance in a healthy aging population. Cognitive function addressing four domains of 144 individuals (30-80 years) was tested at baseline and after 6 years of follow-up...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/s0197-4580(02)00061-1
更新日期：2003-01-01 00:00:00
abstract：:APOE is the major known genetic risk factor for late-onset Alzheimer's disease. Though relationships between APOE-encoded apolipoprotein E and β-amyloid are increasingly well described, mounting evidence supports wide-ranging effects of APOE on the brain. Specifically, APOE appears to affect brain network activity and...
journal_title：Neurobiology of aging
pub_type： 杂志文章,评审
doi：10.1016/j.neurobiolaging.2012.10.011
更新日期：2013-04-01 00:00:00
abstract：:Long-term ovariectomy attenuates several neuroendocrine-dependent changes in reproductive function of aging female rodents, but the sites affected and underlying mechanisms are not known. This study was designed to identify effects of aging on hypothalamic-preoptic neurocytoarchitecture and to determine whether long-t...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/0197-4580(89)90005-5
更新日期：1989-11-01 00:00:00
abstract：:Studies in vitro have suggested that acetylcholinesterase (AChE) may interact with beta-amyloid to promote deposition of amyloid plaques in the brain of patients with Alzheimer's disease. To test that hypothesis in vivo, we crossed Tg2576 mice, which express human amyloid precursor protein and develop plaques at 9 mon...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/s0197-4580(02)00230-0
更新日期：2003-10-01 00:00:00
abstract：:Age-related impairments in episodic memory have been related to a deficiency in semantic processing, based on the finding that elderly adults typically benefit less than young adults from deep, semantic as opposed to shallow, nonsemantic processing of study items. In the present study, we tested the hypothesis that el...
journal_title：Neurobiology of aging
pub_type： 临床试验,杂志文章
doi：10.1016/s0197-4580(03)00032-0
更新日期：2003-11-01 00:00:00
abstract：:Despite recognition that Alzheimer's disease (AD) is a polygenic and heterogeneous dementing neurodegenerative disorder, there is continued merit in defining the AD phenotype by the presence of progressive cognitive impairments and the pathological brain lesions (senile plaques, neurofibrillary tangles) as originally ...
journal_title：Neurobiology of aging
pub_type： 杂志文章,评审
doi：10.1016/s0197-4580(97)00075-4
更新日期：1997-07-01 00:00:00
abstract：:The mechanism by which amyloid beta (Aβ) causes neuronal dysfunction and/or death in Alzheimer's disease (AD) is unclear. Previously, we showed that Aβ inhibits several microtubule-dependent kinesin motors essential for mitosis and also present in mature neurons. Here, we show that inhibition of kinesin 5 (Eg5) by Aβ ...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2014.02.006
更新日期：2014-08-01 00:00:00
abstract：:Humans carrying the prevalent rs9939609 A allele of the fat mass and obesity-associated (FTO) gene are more susceptible to developing obesity than noncarries. Recently, polymorphisms in the FTO gene of elderly subjects have also been linked to a reduced volume in the frontal lobe as well as increased risk for incident...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2011.02.006
更新日期：2011-06-01 00:00:00
abstract：:Neuroimaging biomarkers differ between patients with early-onset Alzheimer's disease (EOAD) and late-onset Alzheimer's disease (LOAD). Whether these changes reflect cognitive heterogeneity or differences in disease severity is still unknown. This study aimed at investigating changes in neuroimaging biomarkers, accordi...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2017.02.010
更新日期：2017-06-01 00:00:00
abstract：:Distortions in the rest-activity rhythm in aging are commonly observed. Neurodegenerative changes of the suprachiasmatic nucleus have been proposed to underlie this disrupted rhythm. However, based on previous studies, it can be proposed that white matter hyperintensities (WMH) may also play a role in the altered rest...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2007.02.014
更新日期：2008-08-01 00:00:00
abstract：:Recent findings seem to converge towards a unified hypothesis trying to relate Down's syndrome (DS), trisomy 21 and Alzheimer's disease (AD). The majority of DS individuals develop neuropathological characteristics of AD by the age of 40. Previous cytogenetic studies performed by us showed an increased frequency of an...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2005.03.025
更新日期：2006-05-01 00:00:00
abstract：:Elevated serum and cerebrospinal fluid concentrations of S100β, a protein predominantly found in glia, are associated with intracranial injury and neurodegeneration, although concentrations are also influenced by several other factors. The longitudinal association between serum S100β concentrations and brain health in...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2018.05.029
更新日期：2018-09-01 00:00:00
abstract：:Progranulin (PGRN) mutations account for an average of 15% of familial frontotemporal dementia (FTD) cases and 20% of total FTD cases worldwide. Here, we investigated the frequency of PGRN mutations in FTD patients (n = 116) from a clinical cohort of south India and detected one novel mutation located on exon 12 in a ...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2015.11.026
更新日期：2016-03-01 00:00:00
abstract：:Using a dosing paradigm and an automated behavioral testing procedure designed to maximize potential drug efficacy, we evaluated the ability of clonidine to improve performance of aged monkeys on a trial-specific memory task. These results indicated that neither acutely administered (0.0025-0.04 mg/kg) or subchronical...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/s0197-4580(88)80089-7
更新日期：1988-07-01 00:00:00
abstract：:APOE-ε4 is a major genetic risk factor for late-onset Alzheimer's disease that interacts with other risk factors, but the nature of such combined effects remains poorly understood. We quantified the impact of APOE-ε4, family history (FH) of dementia, and obesity on white matter (WM) microstructure in 165 asymptomatic ...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2020.06.014
更新日期：2020-10-01 00:00:00
abstract：:Overproduction of amyloid precursor protein (APP) and beta-amyloid likely contribute to neurodegeneration in Alzheimer's disease (AD). In an effort to understand neuronal APP gene regulation, we identified a 52 base element (52sce) immediately downstream from the stop codon that stabilizes APP mRNA. Deletion of this d...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2006.03.003
更新日期：2006-06-01 00:00:00
abstract：:The 'amyloid hypothesis' has guided research into Alzheimer's disease (AD) for more than a decade. A detailed review of the relevant data led us to conclude that some data, particularly those from transgenic mice, are inconsistent with the predictions of the amyloid hypothesis. Instead, most data are consistent with t...
journal_title：Neurobiology of aging
pub_type： 评论,杂志文章,评审
doi：10.1016/s0197-4580(02)00050-7
更新日期：2002-11-01 00:00:00
abstract：:Alzheimer's disease (AD) is the most common dementia among the elderly that involves complex neurodegenerative alterations. Multiple cellular processes including regulation of amyloid-β peptide, tau, inflammation, and cell death have been suggested to associate with AD, but it remains largely unknown if long noncoding...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2015.07.015
更新日期：2015-11-01 00:00:00
abstract：:A group of alterations in the structure of cortical microvessels is described in the brain tissue of neuropathologically confirmed patients with Alzheimer's disease. These changes include irregular thickening of the vessel walls, infiltration with amyloid and the serum P component of amyloid, loss of the perivascular ...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/s0197-4580(88)80014-9
更新日期：1988-01-01 00:00:00
abstract：:Brain injury increases the risk of Alzheimer's disease (AD) through unknown mechanisms. We studied deposition of amyloid-beta protein (Abeta) in cells exposed to transforming growth factor beta1 (TGFbeta1), a cytokine that regulates cell metabolism during brain injury, and apolipoproteinE (apoE), the major lipid trans...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/s0197-4580(02)00095-7
更新日期：2003-03-01 00:00:00
abstract：:Changes of performance monitoring during and after learning of stimulus-response (S-R) associations were examined in younger and older adults using event-related brain potentials (ERPs). To determine whether age-related differences in performance monitoring are attenuated when learning performance is equalized between...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2009.07.016
更新日期：2011-07-01 00:00:00
abstract：:Progranulin (GRN) gene mutations have been genetically associated with frontotemporal dementia (FTD) and are present in about 23% of patients with familial FTD. However, the neurobiology of this secreted glycoprotein remains unclear. Here, we report the identification of 3 pedigrees of Southern Italian extraction in w...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2016.12.030
更新日期：2017-05-01 00:00:00
