The Sarcoplasmic Reticulum of Skeletal Muscle Cells: A Labyrinth of Membrane Contact Sites [PDF]
The sarcoplasmic reticulum of skeletal muscle cells is a highly ordered structure consisting of an intricate network of tubules and cisternae specialized for regulating Ca2+ homeostasis in the context of muscle contraction.
Daniela Rossi +5 more
doaj +2 more sources
MYOM1 deficiency leads to dilated cardiomyopathy by disrupting the homeostasis of sarcoplasmic reticulum [PDF]
MYOM1, a major component of the vertebrate myofibrillar M band, binds myosin, titin, and light meromyosin, has been linked to cardiomyopathy and unexpected sudden death, yet the pathogenic mechanisms remain unclear.
Jinghua Ruan +15 more
doaj +2 more sources
Hypoxia-Induced Sarcoplasmic Reticulum Ca2+ Leak Is Reversed by Ryanodine Receptor Stabilizer JTV-519 in HL-1 Cardiomyocytes [PDF]
Background: To assess whether hypoxia, as can be found in obstructive sleep apnea syndrome, is causally associated with the development of heart failure through a direct effect on calcium leakage from the sarcoplasmic reticulum.
Minh Duc Trinh +6 more
doaj +2 more sources
TRPC1 channels underlie stretch-modulated sarcoplasmic reticulum calcium leak in cardiomyocytes [PDF]
Transient receptor potential canonical 1 (TRPC1) channels are Ca2+-permeable ion channels expressed in cardiomyocytes. An involvement of TRPC1 channels in cardiac diseases is widely established.
Molly E. Streiff +8 more
doaj +2 more sources
Decreased sarcoplasmic reticulum phospholipids in human skeletal muscle are associated with metabolic syndrome [PDF]
Metabolic syndrome affects more than one in three adults and is associated with increased risk of diabetes, cardiovascular disease, and all-cause mortality.
Samantha E. Adamson +12 more
doaj +2 more sources
Intracoronary Sarcoplasmic Reticulum Calcium-ATPase Gene Therapy in Advanced Heart Failure Patients with reduced Ejection Fraction: A Prospective Cohort Study [PDF]
OBJECTIVE: Heart failure is a progressive and debilitating disease. Intracoronary sarcoplasmic reticulum calcium-ATPase gene therapy may improve the function of cardiac muscle cells. This study aimed to test the hypothesis that intracoronary sarcoplasmic
Jianfeng Zhang +2 more
doaj +1 more source
The inhibitory influence of calix[4]arene of C-90 on the activity of Ca(2+),Mg(2+)-ATPases in plasma membrane and sarcoplasmic reticulum in myometrium сells [PDF]
Our study on the plasma membrane vesicles and myometrium cells treated with 0.1% digitonin showed that inhibitory effect of calix[4]arene C-90 (5,11,17,23-tetra(trifluoro)methyl(phenylsulphonylimino)-methylamino-25,26,27,28-tetrapropoxy-calix[4]arene) on
T. O. Veklich
doaj +1 more source
The positive inotropic effect of pyruvate involves an increase in myofilament calcium sensitivity. [PDF]
Pyruvate is a metabolic fuel that is a potent inotropic agent. Despite its unique inotropic and antioxidant properties, the molecular mechanism of its inotropic mechanism is still largely unknown.
Carlos A A Torres +4 more
doaj +1 more source
Activity of Ca(2+),Mg(2+)-ATPase of sarcoplasmic reticulum and contraction strength of the frog skeletal muscles under the effect of organophosphorus insecticides [PDF]
The results of an experimental study of organophosphorus insecticides, including pirimiphosmethyl, diazinon and chlorpyrifos caused a decline of the contraction properties in m. tibialis anterior fiber bundles of Rana temporaria, as well as sarcoplasmic
D. M. Nozdrenko +2 more
doaj +1 more source
Beta-Adrenoceptor Stimulation Reveals Ca2+ Waves and Sarcoplasmic Reticulum Ca2+ Depletion in Left Ventricular Cardiomyocytes from Post-Infarction Rats with and without Heart Failure. [PDF]
Abnormal cellular Ca2+ handling contributes to both contractile dysfunction and arrhythmias in heart failure. Reduced Ca2+ transient amplitude due to decreased sarcoplasmic reticulum Ca2+ content is a common finding in heart failure models.
Mani Sadredini +6 more
doaj +1 more source

