Ultrastructural changes in the sarcoplasmic reticulum in acute myocardial ischemia.
نویسندگان
چکیده
منابع مشابه
Modification of ischemia-reperfusion-induced changes in cardiac sarcoplasmic reticulum by preconditioning.
To examine the effects of ischemic preconditioning on ischemia-reperfusion-induced changes in the sarcoplasmic reticulum (SR) function, isolated rat hearts were either perfused with a control medium for 30 min or preconditioned with three episodes of 5-min ischemia and 5-min reperfusion before sustained ischemia for 30 min followed by reperfusion for 30 min was induced. Preconditioning itself d...
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Developmental changes in the protein, phospholipid, cholesterol, and fatty acid composition of skeletal and cardiac microsomes were correlated with CaZf transport activity in chicken embryos and during the early postnatal period. In skeletal muscle microsomes isolated from leg, superficial pectoralis, or deep pectoralis muscles, the rapid increase in the rate and extent of calcium accumulation ...
متن کاملDevelopmental changes in the composition and function of sarcoplasmic reticulum.
Developmental changes in the protein, phospholipid, cholesterol, and fatty acid composition of skeletal and cardiac microsomes were correlated with CaZf transport activity in chicken embryos and during the early postnatal period. In skeletal muscle microsomes isolated from leg, superficial pectoralis, or deep pectoralis muscles, the rapid increase in the rate and extent of calcium accumulation ...
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The fidelity of excitation-contraction (EC) coupling in ventricular myocytes is remarkable, with each action potential evoking a [Ca²⁺](i) transient. The prevalent model is that the consistency in EC coupling in ventricular myocytes is due to the formation of fixed, tight junctions between the sarcoplasmic reticulum (SR) and the sarcolemma where Ca²⁺ release is activated. Here, we tested the hy...
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The membranes limiting the tubules and vesicles of the endoplasmic reticulum appear, in general, to be of uniform thickness and without pores, discontinuities, or other specialization of structure. Some of these membranes support populations of ribosomes and are referred to as rough; others are particle free and are referred to as smooth. The membranous system in striated muscle fibers, the sar...
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ژورنال
عنوان ژورنال: Japanese Circulation Journal
سال: 1986
ISSN: 0047-1828,1347-4839
DOI: 10.1253/jcj.50.829