Publications by authors named "Kellie A Park"

Unlabelled: Select adhesion proteins control the development of synapses and modulate their structural and functional properties. Despite these important roles, the extent to which different synapse-organizing mechanisms act across brain regions to establish connectivity and regulate network properties is incompletely understood. Further, their functional roles in different neuronal populations remain to be defined.

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Growing evidence implicates an increasing number of novel lipids, including eicosanoids, diacylglycerols, lysophosphatidic acids and ceramides, in augmenting the sensitivity of sensory neurons and enhancing pain perception. Many of these lipids are second messengers in signaling pathways that are associated with increasing the sensitivity of sensory neurons, whereas others are putative inflammatory mediators that activate either surface receptors or ion channels in these neurons. Based on the studies we review, it is clear that lipid-derived inflammatory mediators are a novel group of targets for therapeutics to treat inflammation and chronic pain states.

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Article Synopsis
  • Endothelial barrier function is disrupted by soluble mediators released from activated polymorphonuclear leukocytes (PMNs) during inflammation, with glutamate identified as a key player.
  • The study shows that human brain endothelial cells express metabotropic glutamate receptors (mGluRs), and activation of these receptors leads to increased permeability and loss of phosphorylated vasodilator-stimulated phosphoprotein (VASP).
  • Inhibition of mGluRs with selective antagonists reduces the negative effects of glutamate on the endothelial barrier, demonstrating a potential therapeutic target to protect against inflammation-induced permeability changes in the blood-brain barrier.
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