Results 331 to 340 of about 65,186 (354)
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Myofilaments: Movers and Rulers of the Sarcomere.
Comprehensive Physiology, 2017Striated cardiac and skeletal muscles play very different roles in the body, but they are similar at the molecular level. In particular, contraction, regardless of the type of muscle, is a precise and complex process involving the integral protein ...
B. Lin, Taejeong Song, S. Sadayappan
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On the isometric equation of the sarcomere
Basic Research in Cardiology, 1974A model of the sarcomere is described, which is based upon (a) the sliding filament theory ofHuxley, (b) the ultrastructure of the sarcomere, (c) the biochemical mechanisms responsible for mechanical coupling and uncoupling of myosin and actin, (d) the constancy of the volume of the sarcomere and (e) a statistical analysis of random forces acting on ...
Paul J. Lewi +2 more
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The Sarcomere and Sarcomerogenesis
2008Striated muscle owes its name to the microscopic appearance, caused by the longitudinal alignment of thousands of highly ordered contractile units, the sarcomeres. The assembly (and disassembly) of these multiprotein complexes (sarcomere assembly or sarcomerogenesis) follows ordered pathways, which are regulated on the transcriptional, translational ...
Ehler, E, Gautel, M
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, 2020
Recent advances in stem cell biology have allowed researchers to efficiently produce large numbers of cardiomyocytes from various pluripotent cell sources.
M. Salick +5 more
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Recent advances in stem cell biology have allowed researchers to efficiently produce large numbers of cardiomyocytes from various pluripotent cell sources.
M. Salick +5 more
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Mechanics of the Sarcomere [PDF]
, 1989 Studies on the mechanics of sarcomeres at the level of single myofibrils or single myocytes revealed properties not predicted by the cross-bridge theory of muscle contraction. This paper summarizes four major aspects: 1. Passive compression of the sarcomere showed two inflections in the force length curve; one was at the length where opposing ...
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Sarcomeric Genotyping in Hypertrophic Cardiomyopathy
Mayo Clinic Proceedings, 2005To pool results from studies of patients with hypertrophic cardiomyopathy (HCM) to elucidate important phenotypic differences among genotypes.Data published from November 1998 through November 2004 were gathered and compared from unrelated study population genotyping studies from the Mayo Clinic (Rochester, Minn), Harvard Medical School (Boston, Mass),
A. Jamil Tajik +4 more
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Force produced by isolated sarcomeres and half-sarcomeres after an imposed stretch
American Journal of Physiology-Cell Physiology, 2012When a stretch is imposed to activated muscles, there is a residual force enhancement that persists after the stretch; the force is higher than that produced during an isometric contraction in the corresponding length. The mechanisms behind the force enhancement remain elusive, and there is disagreement if it represents a sarcomeric property, or if it
Dilson E. Rassier, Ivan Pavlov
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2010
Skeletal muscle cells, more commonly called muscle fibres, are multinucleated syncytia formed during development by fusion of mononucleated precursor cells, the myoblasts. They measure 10–100 μm in diameter and can have lengths from a few millimeters up to almost a meter.
Jürgen Roth, Margit Pavelka
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Skeletal muscle cells, more commonly called muscle fibres, are multinucleated syncytia formed during development by fusion of mononucleated precursor cells, the myoblasts. They measure 10–100 μm in diameter and can have lengths from a few millimeters up to almost a meter.
Jürgen Roth, Margit Pavelka
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Beef tenderness and sarcomere length
Meat Science, 1990A wide range of muscle glycolytic rates was produced in 60 beef carcasses by applying different forms and periods of electrical stimulation immediately after decapitation; a further seven carcasses were not stimulated. The sides were subjected to normal chilling, and at 48 h one short loin per carcass was taken for tenderness evaluation and ...
R.L. Russell +4 more
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