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Effects of ATP on Pacemaker Activity of Interstitial Cells of Cajal from the Mouse Small Intestine

Park IK, Kim JH, Park CG, Kim MY, Parajuli S, Hong CS, Choi S, Jun JY

Purinergic receptors play an important role in regulating gastrointestinal (GI) motility. Interstitial cells of Cajal (ICCs) are pacemaker cells that regulate GI smooth muscle activity. We studied the functional roles...
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Extracellular ATP stimulates Na+ and Cl- transport through the activation of multiple purinergic receptors on the apical and basolateral membranes in M-1 mouse cortical collecting duct cells

Jung JS, Hwang SM, Lee RH, Kang SK, Woo JS, Kim YK

  • KMID: 1606942
  • Korean J Physiol Pharmacol.
  • 2001 Jun;5(3):231-241.
The mammalian cortical collecting duct (CCD) plays a major role in regulating renal NaCl reabsorption, which is important in Na+ and Cl- homeostasis. The M-1 cell line, derived from the mouse cortical collecting...
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Vascular Reactivity by Purinoceptor Activation in Rat Inferior Vena Cava

Lee BS, Chung HS, Park KS, Kong ID, Jeong SW, Lee JW

BACKGROUND: Extracellular ATP, released from platelets and nerve endings, plays significant roles in the regulation of circulation. The effects of ATP depend on the location of the vessels and the...
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Antidepressant-like Effects Induced by Chronic Blockade of the Purinergic 2X7 Receptor through Inhibition of Non-like Receptor Protein 1 Inflammasome in Chronic Unpredictable Mild Stress Model of Depression in Rats

Aricioglu , Ozkartal C, Bastaskin , Tüzün E, Kandemir C, Sirvanci S, Kucukali C, Utkan T

OBJECTIVE: Purinergic 2X7 receptor (P2X7R) activation is known to be involved in pathogenesis of depression. Our aims were to investigate P2X7R-activated inflammasome pathways in parallel with induction of depression and...
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Cross talk between P2 purinergic receptors modulates extracellular ATP-mediated interleukin-10 production in rat microglial cells

Seo DR, Kim SY, Kim KY, Lee HG, Moon JH, Lee JS, Lee SH, Kim SU, Lee YB

Previously we demonstrated that ATP released from LPS-activated microglia induced IL-10 expression in a process involving P2 receptors, in an autocrine fashion. Therefore, in the present study we sought to...
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Calcium-dependent and -independent mechanisms of P2Y receptor regulated anion secretion in polarized epithelia

Wong HY, Ko WH

No abstract available.
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Monitoring Platelet Inhibition by Clopidogrel Using Rapid Platelet Function Assay in Patients With Ischemic Stroke

Kim JG, Kim HI, Shin HE, Lee BR, Chun JU, Lee SJ

  • KMID: 2343323
  • J Korean Neurol Assoc.
  • 2008 Nov;26(4):301-307.
BACKGROUND: Clopidogrel inhibits platelet P2Y12 adenosine diphosphate (ADP) receptors and has been widely used in patients with ischemic stroke. However, a considerable number of patients suffer from cerebrovascular events despite...
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Platelet Function Assay for Clopidogrel and Ticlopidine in Patients With Ischemic Stroke

Kim JG, Lee SJ, Jo SR, Kim JO, Kim HJ, Yun DJ, Ko Y, Oh GS, Lee SJ

  • KMID: 2343402
  • J Korean Neurol Assoc.
  • 2011 Aug;29(3):184-191.
BACKGROUND: The rapid platelet function assay (RPFA) has recently been developed and used to monitor the antiplatelet effects on the P2Y12 ADP receptor. We describe the platelet response to clopidogrel...
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Effects of adenosine tetraphosphate (ATPP) on vascular tone in the isolated rat aorta

Lee JW, Kong ID, Park KS, Jeong SW

Effects of a platelet-released, naturally occurring nucleotide, adenosine 5'-tetraphosphate (ATPP) on vascular tone were analyzed in the isolated rat aorta. Under resting tension ATPP (1 approximately 100 microM) elicited concentration-dependent...
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The Relationship of P2Y1 ADP Receptor Polymorphisms and Ischemic Vascular Disease

Park E, Kim HS, Park SH, Park JS, Kim IH, Park S, Park SY, Kim JH, Hong YC, Yun HS, Lee SJ

BACKGROUND: The platelet ADP receptor P2Y1 plays a key role in platelet aggregation. METHODS: We tested eight sites of P2Y1 and studied the possible link between the presence of P2Y1 polymorphisms...
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Activation of nicotinic acetylcholine receptor prevents the production of reactive oxygen species in fibrillar beta amyloid peptide (1-42)-stimulated microglia

Moon JH, Kim SY, Lee HG, Kim SU, Lee YB

Recent studies have reported that the "cholinergic anti-inflammatory pathway" regulates peripheral inflammatory responses via alpha7 nicotinic acetylcholine receptors (alpha7 nAChRs) and that acetylcholine and nicotine regulate the expression of proinflammatory...
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ATP released from beta-amyloid-stimulated microglia induces reactive oxygen species production in an autocrine fashion

Kim SY, Moon JH, Lee HG, Kim SU, Lee YB

  • KMID: 1091077
  • Exp Mol Med.
  • 2007 Dec;39(6):820-827.
Present study demonstrated that fibrillar beta-amyloid peptide (fAbeta(1-42)) induced ATP release, which in turn activated NADPH oxidase via the P2X(7) receptor (P2X(7)R). Reactive oxygen species (ROS) production in fAbeta(1-42)-treated microglia...
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The Impact of Generic Clopidogrel Bisulfate on Platelet Inhibition in Patients with Coronary Artery Stents: Results of the ACCEL-GENERIC Study

Jeong YH, Koh JS, Kang MK, Ahn YJ, Kim IS, Park Y, Hwang SJ, Kwak CH, Hwang JY

BACKGROUND/AIMS: In patients with coronary artery stents, the cost of clopidogrel has been cited as a factor in the premature discontinuation of therapy. Thus, the introduction of lower-cost generic clopidogrel...
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