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 from a molecular signaling perspective. For a long time, astrocytic proliferation was merely considered a byproduct of neuroinflammation, but by the time being, it is clear that astrocytic dysfunction plays a far more important role in PD pathophysiology. Indeed, ongoing experimental evidence suggests the importance of astrocytes and dopaminergic neurons' cross-linking signaling pathways. The Wnt-1 (wingless-type MMTV integration site family, member 1) pathway regulates several processes including neuron survival, synapse plasticity, and neurogenesis. In PD animal models, Frizzled (Fzd) neuronal receptors' activation by the Wnt-1 normally released by astrocytes following injuries leads to β-catenin-dependent gene expression, favoring neuron survival and viability. The transient receptor potential vanilloid 1 (TRPV1) capsaicin receptor also participates in experimental PD genesis. Activation of astrocyte TRPV1 receptors by noxious stimuli results in reduced inflammatory response and increased ciliary neurotrophic factor (CNTF) synthesis, which enhances neuronal survival and differentiation. Another major pathway involves IκB kinase (IKK) downregulation by ARL6ip5 (ADP-ribosylation-like factor 6 interacting protein 5, encoded by the cell differentiation-associated, JWA, gene). Typically, IKK releases the proinflammatory NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells) molecule from its inhibitor. Therefore, by downregulating NF-κB inhibitor, ARL6ip5 promotes an anti-inflammatory response. The evidence provided by neurotoxin-induced PD animal models guarantees further research on the neuroprotective potential of normalizing astrocyte function in PD.
journal_name
Neural Plastjournal_title
Neural plasticityauthors
Udovin L,Quarracino C,Herrera MI,Capani F,Otero-Losada M,Perez-Lloret Sdoi
10.1155/2020/1859431subject
Has Abstractpub_date
2020-02-07 00:00:00pages
1859431eissn
2090-5904issn
1687-5443journal_volume
2020pub_type
杂志文章,评审abstract::We do not all grow older in the same way. Some individuals have a cognitive decline earlier and faster than others who are older in years but cerebrally younger. This is particularly easy to verify in people who have maintained regular physical activity and healthy and cognitively stimulating lifestyle and even in the...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2017/7219461
更新日期:2017-01-01 00:00:00
abstract::The GABA-withdrawal syndrome (GWS) is a model of local status epilepticus following the interruption of a chronic GABA infusion into the rat somatomotor cortex. GWS is characterized by focal epileptic electroencephalographic discharges and associated contralateral myoclonus. In neocortical slices obtained from GWS rat...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/NP.2000.9
更新日期:2000-01-01 00:00:00
abstract::Transcranial direct current stimulation (tDCS) can enhance the effect of conventional therapies in post-stroke neurorehabilitation. The ability to predict an individual's potential for tDCS-induced recovery may permit rehabilitation providers to make rational decisions about who will be a good candidate for tDCS thera...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2020/8859394
更新日期:2020-11-25 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::Introduction. Bipolar disorder (BD) implies risk of suicide. The age at onset (AAO) of BD carries prognostic significance. Substance abuse may precede the onset of BD and cannabis is the most common illicit drug used. The main goal of this study is to review the association of cannabis use as a risk factor for early o...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2015/434127
更新日期:2015-01-01 00:00:00
abstract::Mastoparan-7 (Mas-7), an analogue of the peptide mastoparan, which is derived from wasp venom, is a direct activator of Pertussis toxin- (PTX-) sensitive G proteins. Mas-7 produces several biological effects in different cell types; however, little is known about how Mas-7 influences mature hippocampal neurons. We exa...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2016/4258171
更新日期:2016-01-01 00:00:00
abstract:Objective:To determine whether and how longitudinal acupuncture modulates the impaired default mode network (DMN) in chronic migraine (CM) patients without aura. Methods:Resting-state functional magnetic resonance imaging (fMRI) data from 14 CM patients treated with longitudinal pre- and postacupuncture treatment (PPA...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2019/5047463
更新日期:2019-03-18 00:00:00
abstract::Histamine H4 receptor has been confirmed to play a role in evoking peripheral pruritus. However, the ionic and intracellular signaling mechanism of activation of H4 receptor on the dorsal root ganglion (DRG) neurons is still unknown. By using cell culture and calcium imaging, we studied the underlying mechanism of act...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2016/1682972
更新日期:2016-01-01 00:00:00
abstract::Noninvasive brain stimulation (NBS), such as repetitive transcranial magnetic stimulation (rTMS) or transcranial direct current stimulation (tDCS), has been used in stroke patients with motor impairment. NBS can help recovery from brain damage by modulating cortical excitability. However, the efficacy of NBS varies am...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2019/3826495
更新日期:2019-04-07 00:00:00
abstract:Background:Despite intensive rehabilitation efforts, most stroke survivors have persistent functional disability of the paretic arm and hand. These motor impairments may be due in part to maladaptive changes in structural and functional connections between brain regions. The following early stage clinical trial study p...
journal_title:Neural plasticity
pub_type: 杂志文章,随机对照试验
doi:10.1155/2018/9875326
更新日期:2018-03-12 00:00:00
abstract::Although quantitative analysis of the sleep electroencephalogram (EEG) has uncovered important aspects of brain activity during sleep in adolescents and adults, similar findings from preschool-age children remain scarce. This study utilized our time-frequency method to examine sleep oscillations as characteristic feat...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2017/6160959
更新日期:2017-01-01 00:00:00
abstract:Background:Sudden sensorineural hearing loss (SSNHL) is an otologic emergency and could lead to social difficulties and mental disorders in some patients. Although many studies have analyzed altered brain function in populations with hearing loss, little information is available about patients with idiopathic SSNHL. Th...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2020/9460364
更新日期:2020-09-22 00:00:00
abstract::Ionizing radiation is omnipresent. We are continuously exposed to natural (e.g., radon and cosmic) and man-made radiation sources, including those from industry but especially from the medical sector. The increasing use of medical radiation modalities, in particular those employing low-dose radiation such as CT scans,...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2016/1243527
更新日期:2016-01-01 00:00:00
abstract::Neuropathic pain increases the risk of cardiovascular diseases including hypertension with the characteristic of sympathetic overactivity. The enhanced tonically active glutamatergic input to the rostral ventrolateral medulla (RVLM) contributes to sympathetic overactivity and blood pressure (BP) in cardiovascular dise...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2017/4174010
更新日期:2017-01-01 00:00:00
abstract::There is a general consensus that sleep is strictly linked to memory, learning, and, in general, to the mechanisms of neural plasticity, and that this link may directly affect recovery processes. In fact, a coherent pattern of empirical findings points to beneficial effect of sleep on learning and plastic processes, a...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2013/103949
更新日期:2013-01-01 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::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::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::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::Functional and morphological studies in children affected by Attention Deficit Hyperactivity Disorder (ADHD) suggest a prefrontal cortex (PFc) dysfunction. This cortical region is regulated by subcortical systems including noradrenergic (NEergic), dopaminergic (DAergic), cholinergic, serotonergic, and histaminergic pa...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/NP.2004.133
更新日期:2004-01-01 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::We have previously shown that spontaneous release of glutamate in the entorhinal cortex (EC) is tonically facilitated via activation of presynaptic NMDA receptors (NMDAr) containing the NR2B subunit. Here we show that the same receptors mediate short-term plasticity manifested by frequency-dependent facilitation of ev...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2008/872456
更新日期:2008-01-01 00:00:00
abstract::The role of attentional mechanisms in peripheral vision loss remains an outstanding question. Our study was aimed at determining the effect of genetically determined peripheral retinal dystrophy caused by Retinitis Pigmentosa (RP) on visual cortical function and tested the recruitment of attentional mechanisms using f...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2019/8136354
更新日期:2019-06-25 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
abstract::Associative fear learning, in which stimulation of whiskers is paired with mild electric shock to the tail, modifies the barrel cortex, the functional representation of sensory receptors involved in the conditioning, by inducing formation of new inhibitory synapses on single-synapse spines of the cognate barrel hollow...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2016/9828517
更新日期:2016-01-01 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::Glaucoma is an irreversible blinding eye disease which produces progressive retinal ganglion cell (RGC) loss. Intraocular pressure (IOP) is currently the only modifiable risk factor, and lowering IOP results in reduced risk of progression of the disorder. The endocannabinoid system (ECS) has attracted considerable att...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2016/9364091
更新日期:2016-01-01 00:00:00
abstract:Background:One in three survivors of stroke experience poststroke depression (PSD). PSD has been linked with poorer recovery of function and cognition, yet our understanding of potential mechanisms is currently limited. Alterations in resting-state functional MRI have been investigated to a limited extent. Fluctuations...
journal_title:Neural plasticity
pub_type: 杂志文章
doi:10.1155/2019/2357107
更新日期:2019-07-28 00:00:00
abstract::Functional and effective connectivity of cortical areas are essential for normal brain function under different behavioral states. Appropriate cortical activity during sleep and wakefulness is ensured by the balanced activity of excitatory and inhibitory circuits. Ultimately, fast, millisecond cortical rhythmic oscill...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2016/1478684
更新日期:2016-01-01 00:00:00
abstract:UNLABELLED:Objective. Magnetic seizure therapy (MST) is a novel, experimental therapeutic intervention, which combines therapeutic aspects of electroconvulsive therapy (ECT) and transcranial magnetic stimulation, in order to achieve the efficacy of the former with the safety of the latter. MST might prove to be a valua...
journal_title:Neural plasticity
pub_type: 杂志文章,评审
doi:10.1155/2015/521398
更新日期:2015-01-01 00:00:00