Abstract:
:Stimulating regeneration in the brain has the potential to rescue neuronal networks and counteract progressive pathological changes in Alzheimer's disease (AD). This study investigated whether drugs with different mechanisms of action could enhance neurogenesis and improve cognition in mice receiving human neural stem cell (hNSC) transplants. Six- to nine-month-old AD Tg2576 mice were treated for five weeks with the amyloid-modulatory and neurotrophic drug (+)-phenserine or with the partial α7 nicotinic receptor (nAChR) agonist JN403, combined with bilateral intrahippocampal hNSC transplantation. We observed improved spatial memory in hNSC-transplanted non-drug-treated Tg2576 mice but not in those receiving drugs, and this was accompanied by an increased number of Doublecortin- (DCX-) positive cells in the dentate gyrus, a surrogate marker for newly generated neurons. Treatment with (+)-phenserine did however improve graft survival in the hippocampus. An accumulation of α7 nAChR-expressing astrocytes was observed around the injection site, suggesting their involvement in repair and scarring processes. Interestingly, JN403 treatment decreased the number of α7 nAChR-expressing astrocytes, correlating with a reduction in the number of DCX-positive cells in the dentate gyrus. We conclude that transplanting hNSCs enhances endogenous neurogenesis and prevents further cognitive deterioration in Tg2576 mice, while simultaneous treatments with (+)-phenserine or JN403 result in countertherapeutic effects.
journal_name
Neural Plastjournal_title
Neural plasticityauthors
Lilja AM,Malmsten L,Röjdner J,Voytenko L,Verkhratsky A,Ögren SO,Nordberg A,Marutle Adoi
10.1155/2015/370432subject
Has Abstractpub_date
2015-01-01 00:00:00pages
370432eissn
2090-5904issn
1687-5443journal_volume
2015pub_type
杂志文章abstract::Chronic stress can impair hippocampal neurogenesis, increase neuronal apoptosis, and cause depressive-like behaviors. Our previous studies found that Radix Scutellariae (RS) can rescue the stress-induced neuronal injury, but the mechanism is not clear. Here, we continued to investigate the underlying antidepressant me...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2020/8886715
更新日期:2020-11-13 00:00:00
abstract::We have previously reported the crossed-withdrawal reflex in which the rats with nerve injury developed behavioral pain responses of the injured paw to stimuli applied to the contralateral uninjured paw. This reflex indicates that contralateral plastic changes may occur in the spinal cord after unilateral nerve injury...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2015/438319
更新日期:2015-01-01 00:00:00
abstract::Emotionally arousing events are typically better remembered than mundane ones, in part because emotionally relevant aspects of our environment are prioritized in attention. Such biased attentional tuning is itself the result of associative processes through which we learn affective and motivational relevance of cues. ...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2017/6817349
更新日期:2017-01-01 00:00:00
abstract::Matricellular proteins are secreted, nonstructural proteins that regulate the extracellular matrix (ECM) and interactions between cells through modulation of growth factor signaling, cell adhesion, migration, and proliferation. Despite being well described in the context of nonneuronal tissues, recent studies have rev...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2014/321209
更新日期:2014-01-01 00:00:00
abstract:Background:Parkinson's disease (PD) patients experience cognitive impairment which has been related to reduced quality of life and functional disability. These symptoms usually progress until dementia occurs. Some studies have been published assessing the efficacy of cognitive treatments on improving cognition, functio...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2018/2651918
更新日期:2018-05-06 00:00:00
abstract::Increasing research has evidenced that our brain retains a capacity to change in response to experience until late adulthood. This implies that cognitive training can possibly ameliorate age-associated cognitive decline by inducing training-specific neural plastic changes at both neural and behavioral levels. This lon...
journal_title:Neural plasticity
pub_type: 杂志文章,随机对照试验
doi:10.1155/2015/535618
更新日期:2015-01-01 00:00:00
abstract::Dichoptic movie viewing has been shown to significantly improve visual acuity in amblyopia in children. Moreover, short-term occlusion of the amblyopic eye can transiently increase its contribution to binocular fusion in adults. In this study, we first asked whether dichoptic movie viewing could improve the visual fun...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2019/6208414
更新日期:2019-08-28 00:00:00
abstract::We analyzed operant discrimination in detelencephalated pigeons and neuroanatomical substrates after long-term detelencephalation. In Experiment I, experimental pigeons with massive telencephalic ablation and control pigeons were conditioned to key peck for food. Successive discrimination was made under alternating re...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/NP.2003.247
更新日期:2003-01-01 00:00:00
abstract::The development of new strategies to renew and repair neuronal networks using neural plasticity induced by stem cell graft could enable new therapies to cure diseases that were considered lethal until now. In adequate microenvironment a neuronal progenitor must receive molecular signal of a specific cellular context t...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2016/1568145
更新日期:2016-01-01 00:00:00
abstract::Motoneurons develop extensive dendritic trees for receiving excitatory and inhibitory synaptic inputs to perform a variety of complex motor tasks. At birth, the somatodendritic domains of mouse hypoglossal and lumbar motoneurons have dense filopodia and spines. Consistent with Vaughn's synaptotropic hypothesis, we pro...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2016/3423267
更新日期:2016-01-01 00:00:00
abstract::One of the most significant effects of neural plasticity manifests in the case of sensory deprivation when cortical areas that were originally specialized for the functions of the deprived sense take over the processing of another modality. Vision and audition represent two important senses needed to navigate through ...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2019/9603469
更新日期:2019-12-02 00:00:00
abstract:Objective:To compare the effects of training of jaw and finger movements with and without visual feedback on precision and accuracy. Method:Twenty healthy participants (10 men and 10 women; mean age 24.6 ± 0.8 years) performed two tasks: a jaw open-close movement and a finger lifting task with and without visual feedb...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2019/9593464
更新日期:2019-11-18 00:00:00
abstract::Dementia affects millions of elderly worldwide causing remarkable costs to society, but effective treatment is still lacking. Acupuncture is one of the complementary therapies that has been applied to cognitive deficits such as Alzheimer's disease (AD) and vascular cognitive impairment (VCI), while the underlying mech...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2021/8868447
更新日期:2021-01-12 00:00:00
abstract::In this study, we attempted to test whether tyrosine hydroxylase (TH), the first rate-limiting enzyme of catecholamine synthesis, is confined to the perikarya of activated magnocellular vasopressinergic (VPergic) neurons or is also present in their distal axons in the pituitary posterior lobe (PL). In addition, we eva...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/NP.2000.179
更新日期:2000-01-01 00:00:00
abstract::Fragile X syndrome (FXS) is an inheritable neuropsychological disease caused by expansion of the CGG trinucleotide repeat affecting the fmr1 gene on X chromosome, resulting in silence of the fmr1 gene and failed expression of FMRP. Patients with FXS suffer from cognitive impairment, sensory integration deficits, learn...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2016/9353929
更新日期:2016-01-01 00:00:00
abstract::Benzodiazepines are well established as inhibitory modulators of memory processing. This effect is especially prominent when applied before the acquisition phase of a memory task. This minireview concentrates on the putative subtype selectivity of the acquisition-impairing action of benzodiazepines. Namely, recent gen...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/NP.2005.289
更新日期:2005-01-01 00:00:00
abstract::Success in locomotor rehabilitation programs can be improved with the use of brain-computer interfaces (BCIs). Although a wealth of research has demonstrated that locomotion is largely controlled by spinal mechanisms, the brain is of utmost importance in monitoring locomotor patterns and therefore contains information...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2012/375148
更新日期:2012-01-01 00:00:00
abstract::Inhibitors of HMG-CoA reductase (statins), widely used to lower cholesterol in coronary heart and vascular disease, are effective drugs in reducing the risk of stroke and improving its outcome in the long term. After ischemic stroke, cardiac autonomic dysfunction and psychological problems are common complications rel...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2015/585783
更新日期:2015-01-01 00:00:00
abstract::Alzheimer's disease (AD) is the most common form of dementia in elderly people. It is an irreversible and progressive brain disease. In this paper, we utilized diffusion-weighted imaging (DWI) to detect abnormal topological organization of white matter (WM) structural networks. We compared the differences between WM c...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2016/2947136
更新日期:2016-01-01 00:00:00
abstract::Despite the fact that astrocytes are the most abundant glial cells, critical for brain function, few studies have dealt with their possible role in neurodegenerative diseases like Parkinson's disease (PD). This article explores relevant evidence on the involvement of astrocytes in experimental PD neurodegeneration fro...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2020/1859431
更新日期:2020-02-07 00:00:00
abstract::Traumatic brain injury (TBI) is a serious medical and social problem worldwide. Because of the complex pathophysiological mechanisms of TBI, effective pharmacotherapy is still lacking. The microglial cells are resident tissue macrophages located in the brain and have two major polarization states, M1 phenotype and M2 ...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2017/5405104
更新日期:2017-01-01 00:00:00
abstract::Studies have shown that, depending on its severity and context, stress can affect neural plasticity. Most related studies focused on synaptic plasticity and long-term potentiation (LTP) of principle cells. However, evidence suggests that following high-frequency stimulation, which induces LTP in principal cells, modif...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2008/194097
更新日期:2008-01-01 00:00:00
abstract::Dizziness and vertigo frequently occur after cochlear implantation (CI) surgery, particularly during the early stages. It could recover over time but some of the patients suffered from delayed or sustained vestibular symptoms after CI. This study used rat animal models to investigate the effect of unilateral cochleost...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2016/7287180
更新日期:2016-01-01 00:00:00
abstract::The formation of fear memories is a powerful and highly evolutionary conserved mechanism that serves the behavioral adaptation to environmental threats. Accordingly, classical fear conditioning paradigms have been employed to investigate fundamental molecular processes of memory formation. Evidence suggests that a cir...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2017/3750307
更新日期:2017-01-01 00:00:00
abstract::The aim of the present study was to assess the role of action observation treatment (AOT) in the rehabilitation of upper limb motor functions in children with cerebral palsy. We carried out a two-group, parallel randomized controlled trial. Eighteen children (aged 5-11 yr) entered the study: 11 were treated children, ...
journal_title:Neural plasticity
pub_type: 杂志文章,随机对照试验
doi:10.1155/2018/4843985
更新日期:2018-07-04 00:00:00
abstract::Anxiety is most common among Alzheimer's disease (AD) patients with an age at onset under age 65. Apolipoprotein E4 (apoE4) is a risk factor for developing AD at an earlier age and might contribute to this effect. In mice, apoE plays a role in the regulation of anxiety, which might involve histamine receptor-mediated ...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2007/91236
更新日期:2007-01-01 00:00:00
abstract::Proper functioning of the visual system depends on maturation of both excitatory and inhibitory synapses within the visual cortex. Considering that perisomatic inhibition is one of the key factors that control the critical period in visual cortex, it is pertinent to understand its regulation by visual experience. To d...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2009/415135
更新日期:2009-01-01 00:00:00
abstract::The aim of this study was to investigate the effect of subdiaphragmatic vagotomy on insulin sensitivity, secretion, and degradation in metabolic programmed mice, induced by a low-protein diet early in life, followed by exposure to a high-fat diet in adulthood. Weaned 30-day-old C57Bl/6 mice were submitted to a low-pro...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2017/9652978
更新日期:2017-01-01 00:00:00
abstract::The entorhinal cortex (EC) is a nodal and independent mnemonic element of the medial temporal lobe memory circuit as it forms a bidirectional interface between the neocortex and hippocampus. Within the EC, intra- and inter-lamellar associational connections occur via horizontal and columnar projections, respectively. ...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2008/814815
更新日期:2008-01-01 00:00:00
abstract::Accumulating evidence implicates a role for brain structures outside the ascending auditory pathway in tinnitus, the phantom perception of sound. In addition to other factors such as age-dependent hearing loss, high-level sound exposure is a prominent cause of tinnitus. Here, we examined how noise exposure altered the...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2021/8833087
更新日期:2021-01-14 00:00:00