Xiangqun Shi

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Alzheimer’s disease (AD) and vascular dementia (VaD) are the two most dominant forms of dementia in elderly people. Due to the large overlap between AD and VaD in clinical observations, great controversies exist regarding the distinction and connection between these two types of senile dementia. Here for the first time, we resort to the gene expression(More)
Damage to synaptic plasticity induced by neurotoxicity of amyloid-beta is regarded to be one of the pathological mechanisms of learning and memory disabilities in Alzheimer's disease patients. This study assumed that the damage of amyloid-beta to learning and memory abilities was strongly associated with the changes in the Fyn/N-methyl-D-aspartate receptor(More)
BACKGROUND The value of percutaneous transluminal angioplasty and stenting (PTAS) in the context of aggressive medical treatment for severe intracranial artery stenosis (ICAS) is under debate. This study compared the effects of PTAS and aggressive medical treatment in patients with severe ICAS and transient ischemic attack or stroke. MATERIAL AND METHODS(More)
—This paper considers a spectrum-sharing cognitive network in which a secondary user shares spectrum with an existing primary user as long as the interference caused by the secondary user to the primary user is below permissible levels. We investigate the delay quality-of-service (QoS) guaranteed capacity gains with imperfect channel state information (CSI)(More)
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