Yee Kee J Leung

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The kynurenine pathway has been implicated as a major component of the neuroinflammatory response to brain injury and neurodegeneration. We found that the neurotoxic kynurenine pathway intermediate quinolinic acid (QUIN) is rapidly expressed, within 24 h, by reactive microglia following traumatic injury to the rodent neocortex. Furthermore, administration(More)
A number of intracellular proteins that are protective after brain injury are classically thought to exert their effect within the expressing cell. The astrocytic metallothioneins (MT) are one example and are thought to act via intracellular free radical scavenging and heavy metal regulation, and in particular zinc. Indeed, we have previously established(More)
Following central nervous system injury, astrocytes rapidly respond by undergoing a stereotypical pattern of molecular and morphological alterations termed "reactive" astrogliosis. We have reported previously that metallothioneins (MTs) are rapidly expressed by reactive astrocytes and that their secretion and subsequent interaction with injured neurons(More)
Metallothionein (MT) expression is rapidly up-regulated following CNS injury, and there is a strong correlation between the presence or absence of MTand improved or impaired (respectively) recovery from such trauma.We now report that a distinct subset of NG2-positive, GFAP-negative glial cells bordering the injury tract express MT following focal injury to(More)
framework using particle swarm optimization for classification method PROAFTN. Simulated annealing and genetic algorithms for minimizing mean flow time in an open shop. heuristic for the multi-dimensional knapsack problem. multi-objective binary optimization problems, with an application to the Multi-Objective Knapsack Problem. K. (1999). Artificial neural(More)
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