Warning: Undefined variable $zfal in C:\Inetpub\vhosts\kidney.de\httpdocs\mlpefetch.php on line 525
Deprecated: str_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated in C:\Inetpub\vhosts\kidney.de\httpdocs\mlpefetch.php on line 525
Warning: Undefined variable $sterm in C:\Inetpub\vhosts\kidney.de\httpdocs\mlpefetch.php on line 530
Warning: Undefined variable $sterm in C:\Inetpub\vhosts\kidney.de\httpdocs\mlpefetch.php on line 531
English Wikipedia
Nephropedia Template TP (
Twit Text
DeepDyve Pubget Overpricing |
lüll Role of potassium channels in coronary vasodilation Dick GM; Tune JDExp Biol Med (Maywood) 2010[Jan]; 235 (1): 10-22K(+) channels in coronary arterial smooth muscle cells (CASMC) determine the resting membrane potential (E(m)) and serve as targets of endogenous and therapeutic vasodilators. E(m) in CASMC is in the voltage range for activation of L-type Ca(2+) channels; therefore, when K(+) channel activity changes, Ca(2+) influx and arterial tone change. This is why both Ca(2+) channel blockers and K(+) channel openers have such profound effects on coronary blood flow; the former directly inhibits Ca(2+) influx through L-type Ca(2+) channels, while the latter indirectly inhibits Ca(2+) influx by hyperpolarizing E(m) and reducing Ca(2+) channel activity. K(+) channels in CASMC play important roles in vasodilation to endothelial, ischemic and metabolic stimuli. The purpose of this article is to review the types of K(+) channels expressed in CASMC, discuss the regulation of their activity by physiological mechanisms and examine impairments related to cardiovascular disease.|Aging/physiology[MESH]|Animals[MESH]|Cardiomegaly/physiopathology[MESH]|Cardiomyopathies/physiopathology[MESH]|Coronary Artery Disease/physiopathology[MESH]|Coronary Circulation/physiology[MESH]|Coronary Vessels/*physiology/physiopathology[MESH]|Diabetes Mellitus/physiopathology[MESH]|Endothelium, Vascular/physiology[MESH]|Humans[MESH]|Hyperglycemia/physiopathology[MESH]|Hypertension/physiopathology[MESH]|Ischemia/physiopathology[MESH]|KATP Channels/physiology[MESH]|Metabolic Syndrome/physiopathology[MESH]|Models, Cardiovascular[MESH]|Myocytes, Smooth Muscle/physiology[MESH]|Potassium Channels, Calcium-Activated/physiology[MESH]|Potassium Channels, Voltage-Gated/physiology[MESH]|Potassium Channels/chemistry/classification/*physiology[MESH]|Reactive Oxygen Species/metabolism[MESH]|Vasodilation/*physiology[MESH] |