Abstract：
:Patients with Mild Cognitive Impairment (MCI), exhibiting both working memory and olfactory deficits are likely to progress to Alzheimer's disease (AD). Targeting this pre-clinical AD population with disease modifying agents or cognitive enhancers represents the best strategy for halting or delaying the impact of this pernicious disease. However, there is a paucity of animal models of MCI with which to assess putative therapeutic strategies. We describe an odour span task which assesses the ability of mice to remember lists of odours, and report subtle cognitive deficits in human amyloid over-expressing (Tg2576) mice, at an age prior to plaque deposition. Four-month-old Tg2576 mice exhibited normal acquisition and performance in the standard 12-span task, but were significantly impaired when memory load was increased to 22 odours. By 8-months, a performance deficit was apparent in the 12-span task and by 1-year mice also exhibited significant acquisition deficits. Thus, by assessing olfactory working memory in Tg2576 mice we can model aspects of MCI in rodents and aid development of future therapeutic strategies for AD.
journal_name
Neurobiol Agingjournal_title
Neurobiology of agingauthors
Young JW,Sharkey J,Finlayson Kdoi
10.1016/j.neurobiolaging.2007.11.018subject
Has Abstractpub_date
2009-09-01 00:00:00pages
1430-43issue
9eissn
0197-4580issn
1558-1497pii
S0197-4580(07)00451-4journal_volume
30pub_type
杂志文章abstract：:Gangliosides have been shown to be necessary for beta-amyloid (Abeta) binding and aggregation. GD3 synthase (GD3S) is responsible for biosynthesis of the b- and c-series gangliosides, including two of the four major brain gangliosides. We examined Abeta-ganglioside interactions in neural tissue from mice lacking the g...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2007.12.022
更新日期：2009-11-01 00:00:00
abstract：:Transcranial electrical stimulation (tES) is a potentially viable tool for boosting cognitive performance in aging. However, most knowledge on tES effects is based on studies involving young adults. Here, we applied tES (transcranial random noise stimulation [tRNS] as an effective stimulation and anodal transcranial d...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2019.07.009
更新日期：2019-10-01 00:00:00
abstract：:Vergence eye movements were recorded with the scleral search-coil system in 32 healthy subjects (ages 19-73 years) to characterize the age-related effects on the dynamic parameters of vergence responses to step (transient components) and ramp or sinusoidal targets (sustained components) under natural viewing condition...
journal_title：Neurobiology of aging
pub_type： 临床试验,杂志文章
doi：10.1016/j.neurobiolaging.2005.01.002
更新日期：2006-01-01 00:00:00
abstract：:Oxidative stress is believed to be a significant cause of Parkinson's disease (PD). DJ-1 is thought to be an oxidative sensor that protects cells from oxidative insult. It was reported that the level of total DJ-1 protein was significantly reduced in the substantia nigra of sporadic PD patients, suggesting that abnorm...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2013.09.027
更新日期：2014-03-01 00:00:00
abstract：:Dogs exhibit both neuroanatomical and cognitive changes as a function of age that parallel those seen in aging humans. This study describes in vivo changes in neuroanatomical and cerebrovascular characteristics of the canine brain as a function of age in a group of dogs ranging from 4 to 15 years old. Dynamic contrast...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/s0197-4580(98)00081-5
更新日期：1998-09-01 00:00:00
abstract：:Iron is essential for triggering oligodendrocytes to myelinate, however, in gray matter (GM) iron increases with age and is associated with age-related degenerative brain diseases. Women have lower iron levels than men, both in the periphery and in the brain, particularly in white matter (WM), possibly due to iron los...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2011.08.002
更新日期：2012-09-01 00:00:00
abstract：:Recent case-control studies reported an association between H. pylori infection and Alzheimer's disease (AD). Our aim was to compare cognitive impairment, neuroinflammation, and cerebrovascular lesion load in a group of AD patients according to their H. pylori status. For the 53 AD patients included, we assessed: clin...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2011.10.021
更新日期：2012-05-01 00:00:00
abstract：:Striatal degeneration may contribute to cognitive impairment in older people. Here, we examine the relation of degeneration of the striatum and substructures to cognitive decline and dementia in subjects with a wide range of cognitive function. Data are from the prospective community-based Honolulu Asia Aging Study of...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2010.09.027
更新日期：2012-02-01 00:00:00
abstract：:C9orf72 repeat expansions are a common cause of amyotrophic lateral sclerosis and frontotemporal dementia. To date, no large-scale study of dementia with Lewy bodies (DLB) has been undertaken to assess the role of C9orf72 repeat expansions in the disease. Here, we investigated the prevalence of C9orf72 repeat expansio...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2016.08.023
更新日期：2017-01-01 00:00:00
abstract：:Parkinson's disease (PD) and Alzheimer's dementia (AD) are often associated with an autonomic neuropathy. The extent of autonomic involvement, however is poorly defined and unpredictable. In order to assess the autonomic cardiovascular regulation baroreflex sensitivity (BRS) was determined non-invasively in 23 patient...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/s0197-4580(01)00210-x
更新日期：2001-05-01 00:00:00
abstract：:The amyloid beta-peptide (A beta)-associated free radical oxidative stress model for neuronal death in Alzheimer's disease (AD) brain predicts that neuronal protein oxidation is a consequence of A beta-associated free radicals [8]. In this study we have used both in vitro and in vivo models of beta-amyloid (A beta) to...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/s0197-4580(99)00056-1
更新日期：1999-05-01 00:00:00
abstract：:Apolipoprotein E (APOE) alleles are associated with longevity in genome-wide scans, with ε4 correlated with shorter life, and ε2 with longer life, than ε3. We hypothesized that rare APOE variants with large individual effects might also contribute to long-term good health. The APOE exons and promoter were resequenced ...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2013.09.010
更新日期：2014-03-01 00:00:00
abstract：:Aging produces a loss in a number of behavioral and cognitive functions, including sleep. Hypocaloric diet is one of the few methods that have been shown to retard the effects due to age. However, the effects of such a diet on sleep have never been investigated. In the present study, 21 months old male F344 rats fed a...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/s0197-4580(02)00030-1
更新日期：2002-09-01 00:00:00
abstract：:While aged monkeys of several species show cerebral amyloid deposition in senile plaques and blood vessels similar to that seen in human aging and Alzheimer's disease (AD), studies of great apes have been limited. Using histological and immunohistochemical methods, we examined the brains of four orangutans aged 10, 28...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/s0197-4580(97)00012-2
更新日期：1997-03-01 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：:Genome-wide association studies (GWASs) have been effective approaches to dissect common genetic variability underlying complex diseases in a systematic and unbiased way. Recently, GWASs have led to the discovery of over 20 susceptibility loci for Alzheimer's disease (AD). Despite the evidence showing the contribution...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2016.04.004
更新日期：2016-10-01 00:00:00
abstract：:An experiment was performed to test the ability of Centrophenoxine to reduce the amount of lipofuscin (age pigment) in the retinal pigment epithelium (RPE) of aged rhesus monkeys. Centrophenoxine is reputed to have this action in neurons of lower mammals. Quantitative electron microscopic analysis was performed on sec...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/0197-4580(86)90148-x
更新日期：1986-03-01 00:00:00
abstract：:Based on evidence that high Mg2+ counteracts age-related declines in synaptic plasticity, and that aged rat hippocampal neurons exhibit prolonged Ca2+-dependent K+ currents, it is proposed that an underlying cause of altered Ca2+ homeostasis during brain aging may be an increased membrane conductance to Ca2+. An appar...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/0197-4580(87)90074-1
更新日期：1987-07-01 00:00:00
abstract：:N-Methyl-D-Aspartate (NMDA) receptors are believed to play a critical role in excitotoxic cell death in the CNS. The distribution of NMDA-preferring binding sites is compared here with the patterns of selective neuronal death observed in Alzheimer's disease and following transient ischemia. The distribution of NMDA re...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/0197-4580(89)90148-6
更新日期：1989-09-01 00:00:00
abstract：:Recent studies suggested that matrix metalloproteinases (MMPs) might play an important role in the pathophysiology of Alzheimer's disease (AD). MMP-9 and MMP-3 are reported to degrade amyloid beta and have several functional polymorphisms associated with other common diseases. Four common polymorphisms in each of MMP-...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2004.09.004
更新日期：2005-07-01 00:00:00
abstract：:Basal forebrain cholinergic neurons (BFCN), a system involved in learning and memory processes, are highly dependent on a continuous supply of biologically active nerve growth factor (NGF). Age-related cholinergic atrophy and cell loss in normal brains is apparently not complemented by reductions in the levels of NGF ...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2011.09.031
更新日期：2012-09-01 00:00:00
abstract：:In simple systems, lifespan can be extended by various methods including dietary restriction, mutations in the insulin/insulin-like growth factor (IGF) pathway or mitochondria among other processes. It is widely held that the mechanisms that extend lifespan may be adapted for diminishing age-associated pathologies. We...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2013.03.014
更新日期：2013-09-01 00:00:00
abstract：:Cluster of Differentiation-200 (CD200) is an anti-inflammatory glycoprotein expressed in neurons, T cells, and B cells, and its receptor is expressed on glia. Both Alzheimer's disease patients and mouse models display age-related or amyloid-β peptide (Aβ)-induced reductions in CD200. The goal of this study was to dete...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2015.07.027
更新日期：2015-11-01 00:00:00
abstract：:Neurogenesis persists in the adult brain as a form of plasticity due to the existence of neural stem cells (NSCs). Alterations in neurogenesis have been found in transgenic Alzheimer's disease (AD) mouse models, but NSC activity and neurogenesis in sporadic AD models remains to be examined. We herein describe a remark...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2013.05.011
更新日期：2013-11-01 00:00:00
abstract：:It was previously reported that in soleus neuromuscular junctions of old mice, synaptic vesicle density was decreased while transmitter release was increased (compared to results in young mice). In the present study, two hypotheses that might resolve this disparity were tested. The first was that the density of readil...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/0197-4580(87)90061-3
更新日期：1987-01-01 00:00:00
abstract：:Alzheimer's disease (AD) is a genetically complex disorder for which the definite diagnosis is only accomplished postmortem. Mutations in 3 genes (APP, PSEN1, and PSEN2) are known to cause AD, but a large number of familial cases do not harbor mutations in these genes and several unidentified genes that contain diseas...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2011.10.009
更新日期：2012-05-01 00:00:00
abstract：:Somatostatin (SOM) cortical levels decline in Alzheimer's disease (AD) in correlation with cognitive impairment severity, the latter being closely related to the presence of neurofibrillary tangles. Impaired olfaction is another hallmark of AD tightly related to tau pathology in the olfactory pathways. Recent studies ...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2014.10.033
更新日期：2015-02-01 00:00:00
abstract：:Advanced age is associated with a higher incidence of stroke and worse functional outcomes. Vagus nerve stimulation (VNS) paired with rehabilitative training has emerged as a potential method to improve recovery after brain injury but to date has only been evaluated in young rats. Here, we evaluated whether VNS paired...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2016.03.030
更新日期：2016-07-01 00:00:00
abstract：:Omegaconotoxin binding was studied in young (3 months) and old (24 months) male Sprague-Dawley rats. In both groups omegaconotoxin binding displayed high affinity, was specific and saturable. The age-related changes are mainly a decrease in the Bmax in striatum and cortex (-29% and -31%, respectively). Binding paramet...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/0197-4580(90)90010-w
更新日期：1990-07-01 00:00:00
abstract：:White matter is frequently involved in ischemic stroke, and progressive ischemic white matter injuries are associated with various neurologic dysfunctions in the elderly population. Demyelination and oligodendrocyte (OL) loss are prominent features of ischemic white matter injury. Endothelin-1 injection into the inter...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2014.01.146
更新日期：2014-07-01 00:00:00
