Results 211 to 220 of about 83,934 (252)
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Indices of myocardial oxygen consumption for isotonic contraction
American Journal of Physiology-Heart and Circulatory Physiology, 1979To investigate the model-independent mechanical determinants of energy expenditure, a respirometer was constructed to study isolated feline papillary muscles. Mechanical parameters recorded were the distance of shortening (deltaL), peak velocity of shortening (Vp), mean velocity of shortening (V), tension-time index (TTI), afterload (P), and the ...
C R, Lambert, P, Posner
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The role of tropomyosin in the regulation of myocardial contraction and relaxation
Pflügers Archiv - European Journal of Physiology, 2003Studies over the last 30 years have demonstrated the essential nature of the evolutionarily highly conserved tropomyosin (TM) protein. TM-deficient cells neither function properly nor survive, and mutations within this protein impair severely its function within the sarcomere.
Beata M, Wolska, David M F, Wieczorek
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[Cardiac myosins and myocardial contraction].
Giornale italiano di cardiologia, 1987The contractile properties of cardiac muscle cells are determined by the molecular composition of the contractile apparatus and in particular by the structure of myosin. Three isoforms of myosin heavy chains have been recently identified in the mammalian heart: alpha and beta myosin heavy chains, present in atrial and ventricular myocardium, and nodal ...
S, Schiaffino, L, Gorza
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The Intrinsic Control of Myocardial Contraction — Ionic Factors
New England Journal of Medicine, 1971THE heart is an organ that is notable for its ability to adapt very rapidly to changes in demand even in the absence of extrinsic neural or humoral stimuli.
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Myocardial contraction bands revisited
Human Pathology, 1986S B, Karch, M E, Billingham
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[Reversible dysfunction of myocardial contraction].
Vnitrni lekarstvi, 1999It has been known for more than 20 years that in some patients after revascularization partial or complete improvement of previous left ventricular dysfunction occurs. The condition for this improvement is viable myocardium, i.e. contractile reserve. Chronic reversible contractile dysfunction, also called hibernating myocardium heart muscle is along ...
M, Mates, J, Veselka
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