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Plastic changes in glutamatergic synapses that lead to endurance of drug craving and addiction are poorly understood. We examined the turnover and trafficking of NMDA receptors and found that chronic exposure to the psychostimulant amphetamine (AMPH) induced selective downregulation of NMDA receptor NR2B subunits in the confined surface membrane pool of rat(More)
Cognitive deficits are the core symptoms of schizophrenia and major contributors to disability in schizophrenic patients, but effective treatments are still lacking. Previous studies have demonstrated that impaired BDNF/TrkB signaling is associated with the cognitive impairments of schizophrenia. 7,8-Dihydroxyflavone (7,8-DHF) has recently been identified(More)
Deficits in learning and memory accompanied by age-related neurodegenerative diseases are closely related to the impairment of synaptic plasticity. In this study, we investigated the role of thiol redox status in the modulation of the N-methyl-d-aspartate receptor (NMDAR)-dependent long-term potentiation (LTP) in CA1 areas of hippocampal slices. Our results(More)
Many studies have reported a withdrawal-dependent increase in synaptic AMPA receptor (AMPAR) levels in the nucleus accumbens (NAc) of cocaine-sensitized rats; however, the exact relationship between the expression of sensitization and altered AMPAR surface expression in the NAc has not yet been investigated. We demonstrated that the expression of behavioral(More)
BACKGROUND AND PURPOSE Sinomenine (SN), a bioactive alkaloid, has been utilized clinically to treat rheumatoid arthritis in China. Our preliminary experiments indicated that it could protect PC12 cells from oxygen-glucose deprivation-reperfusion (OGD-R), we thus investigated the possible effects of SN on cerebral ischaemia and the related mechanism. (More)
Deficit in synaptic plasticity in the hippocampus frequently occurs during normal aging. Although the protein level and calcium permeability of AMPARs alter with aging, the alteration of AMPARs and their regulatory proteins during aging are far from understanding. Dynamics of GluR2 subunit are dependent on the function of protein interacting with Cα kinase(More)
This paper conducts a Bayesian analysis of inverse Gaussian process models for degradation modeling and inference. Novel features of the Bayesian analysis are the natural manners for incorporating subjective information, pooling of random effects information among product population, and a straightforward way of coping with evolving data sets for on-line(More)
BACKGROUND AND PURPOSE There is growing interest in the physiological functions of flavonoids, especially in their effects on cognitive function and on neurodegenerative diseases. The aim of the current investigation was to evaluate the role of the flavonoid baicalein in long-term potentiation (LTP) in the hippocampal CA1 region and cognitive behavioural(More)
Recent work has demonstrated that a phosphatidylinositol (PI)-linked D(1) dopamine receptor selective agonist, SKF83959, mediates phosphatidylinositol hydrolysis via activation of phospholipase C(beta) in brain. Specific contributions of SKF83959 to synaptic plasticity have not been well elucidated. The aim of the current investigation was to characterize(More)
Plant or food derived polyphenols have received a great deal of attention due to their biological properties including anti-oxidative effects, neuroprotection and memory enhancement. Here, we investigated the roles of 2,3,5,4'-tetrahydroxystilbene-2-O-β-d-glucoside (TSG), an active component of the rhizome extracted from Polygonum multiflorum, in the(More)