Dantrolene Inhibition of RyR2 requires Calmodulin
نویسندگان
چکیده
منابع مشابه
Essential Role of Calmodulin in RyR Inhibition by Dantrolene.
Dantrolene is the first line therapy of malignant hyperthermia. Animal studies suggest that dantrolene also protects against heart failure and arrhythmias caused by spontaneous Ca(2+) release. Although dantrolene inhibits Ca(2+) release from the sarcoplasmic reticulum of skeletal and cardiac muscle preparations, its mechanism of action has remained controversial, because dantrolene does not inh...
متن کاملEssential Role of Calmodulin in RyR Inhibition by Dantrolene s
Dantrolene is the first line therapy of malignant hyperthermia. Animal studies suggest that dantrolene also protects against heart failure and arrhythmias caused by spontaneous Ca release. Although dantrolene inhibits Ca release from the sarcoplasmic reticulum of skeletal and cardiac muscle preparations, its mechanism of action has remained controversial, because dantrolene does not inhibit sin...
متن کاملDantrolene requires Mg2+ to arrest malignant hyperthermia.
Malignant hyperthermia (MH) is a clinical syndrome of skeletal muscle that presents as a hypermetabolic response to volatile anesthetic gases, where susceptible persons may develop lethally high body temperatures. Genetic predisposition mainly arises from mutations on the skeletal muscle ryanodine receptor (RyR). Dantrolene is administered to alleviate MH symptoms, but its mechanism of action a...
متن کاملDantrolene-Induced Inhibition of Skeletal L-Type Ca2+ Current Requires RyR1 Expression
Malignant hyperthermia (MH) is a pharmacogenetic disorder most often linked to mutations in the type 1 ryanodine receptor (RyR1) or the skeletal L-type Ca(2+) channel (Ca(V)1.1). The only effective treatment for an MH crisis is administration of the hydantoin derivative Dantrolene. In addition to reducing voltage induced Ca(2+) release from the sarcoplasmic reticulum, Dantrolene was recently fo...
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the effect of four inhibitors on calmalulin (cum) were studied by a ftuorescence and ultraviolet techniques. four compounds in - ( 6 - aminohexyt) 5-chloro - i - napthalenesulphonamide] (w-7), 1 - [ bis - (4 - chtorophenyt) methyl] - 3 - [2, 4-dichloro - β - ( 2 , 4 - dichlorobenzyloxyl) phenethyt] imidazolium chloride (r24571), trifluoperazine (tfp) , thiodiphenylamide chloride (tdpac) showed ...
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ژورنال
عنوان ژورنال: Biophysical Journal
سال: 2015
ISSN: 0006-3495
DOI: 10.1016/j.bpj.2014.11.3194