Openers of SKCa and IKCa channels enhance agonist-evoked nitric oxide synthesis and arteriolar vasodilation.
Jianzhong Sheng, Srikanth Ella, Michael Davis, Michael Hill, Andrew Braun
FASEB Journal 23(4): 1138-1145
This study demonstrates that direct manipulation of select endothelial ion channels is capable of lowering blood pressure in animal models and may thus represent a novel therapeutic strategy in the treatment of hypertensive states associated with vascular disorders.
Andrew Braun: abraun@ucalgary.ca
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Blockade of K(ATP) channels reduces endothelial hyperpolarization and leukocyte recruitment upon reperfusion after hypoxia.
Figura M, Chilton L, Liacini A, Viskovic MM, Phan V, Knight D, Millar TM, Patel K, Kubes P, Giles WR, Tibbles LA
Am J Transplant. 2009 Apr;9(4):687-96. Epub 2009 Mar 9.
Injury of kidney transplants at the time of transplantation can occur due to lack of oxygen when the graft is obtained from the donor, stored, and during the implantation into the recipient. This ischemic damage can result in short term graft dysfunction and long term graft loss. We examined the earliest stages of this damage in blood vessel lining (endothelial) cells, and found that lack of oxygen can affect channels in the cell membrane and lead to changes in the endothelial cells that promote inflammation and leukocyte recruitment. These changes can be altered using a common drug called glybenclamide (glyburide). This may be important in preventing transplant injury, and may also be a mechanism in other ischemic injuries like heart attacks and stroke.
Lee Anne Tibbles: Office ph# 403-220-2064
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Antagonistic interactions among Plexins regulate the timing of intersegmental vessel formation.
Lamont RE, Lamont EJ, Childs SJ.
Dev Biol. 2009 May 5. [Epub ahead of print]
PMID: 19422817 [PubMed - as supplied by publisher]
In this article we show that zebrafish semaphorin3e (sema3e) is expressed by endothelial cells of the dorsal aorta, primary motoneurons, and endodermal cells. Read the rest of this entry »