Results 341 to 350 of about 65,186 (354)
Some of the next articles are maybe not open access.
Inherited disorders of sarcomeric proteins
Current Opinion in Neurology, 1999The most important advances in sarcomeric protein diseases continue to be the identification of mutated genes responsible for human diseases. These have recently included those that encode skeletal muscle alpha-actin in autosomal dominant and autosomal recessive nemaline myopathy, nebulin and slow alpha-tropomyosin in autosomal recessive nemaline ...
openaire +3 more sources
The Sarcomeric Control of Energy Conversion
Annals of the New York Academy of Sciences, 2005Abstract: The Frank‐Starling Law, Fenn Effect, and Suga's suggestions of cardiac muscle constant contractile efficiency establish the dependence of cardiac mechanics and energetics on the loading conditions. Consistent with these observations, this review suggests that the sarcomere control of contraction consists of two dominant feedbacks: (1) a ...
Amir Landesberg +3 more
openaire +3 more sources
Is stepwise sarcomere shortening an artefact?
Nature, 1984A report in 1977 raised the intriguing possibility that sarcomere shortening in muscle may occur in a stepwise fashion, in which episodes of shortening are interrupted by periods of little or no movement. This was taken by its authors to imply the synchronous activity of cross-bridges over a large volume of tissue-behaviour which cannot easily be ...
ALTRINGHAM JD +2 more
openaire +3 more sources
A numerical study of the stiffness of a sarcomere
Journal of Electromyography and Kinesiology, 1998Relatively recent experimental findings of the significant compliance of the thin (actin) and thick (myosin) filaments have brought into question a number of conclusions based on the assumption of perfect myofilament rigidity. A new model based on a discrete representation of the relevant structures was used to calculate the theoretical stiffness of a ...
Mario Forcinito +2 more
openaire +3 more sources
Architecture and function in the muscle sarcomere
Current Opinion in Structural Biology, 1997Striated muscle sarcomeres in vertebrates comprise ordered arrays of actin and myosin filaments, organized by an elaborate protein scaffold. Recent innovative work in a number of laboratories has greatly improved our knowledge of these structures, their organization and their interactions.
openaire +3 more sources
Sarcomere Function and Crossbridge Cycling
1995The power of the heart is dictated by the force development and velocity of shortening (V) of the cardiac sarcomere. Both depend on the amount of Ca++ released by the sarcoplasmic reticulum during the action potential. We have investigated the inter-relationship between force (F) sarcomere length (SL) and V and the intracellular Ca++ concentration ([Ca+
openaire +3 more sources
The non-sliding filaments of the sarcomere
Meat Science, 1987A model is proposed for the 'gap' or 'third' filaments of muscle, here renamed 'T-filaments'. These consist of single titin molecules, spanning the half sarcomere from M-line to Z-line. Of several possibilities for stoichiometry and arrangement, the one most favoured here consists of six T-filaments lying longitudinally on the surface of the A-filament,
openaire +3 more sources
Sarcomere reorganization in mite muscle
Developmental Biology, 1976Abstract The number of sarcomeres in a given muscle of the mite Tarsonemus randsi was constant in both larval and adult stages, with the exception of the two medial dorsal metapodosomal muscles in males. These muscles have three sarcomeres in larvae and one sarcomere in adults.
openaire +3 more sources
Muscle structure, sarcomere length and influences on meat quality: A review.
Meat Science, 2017P. Ertbjerg, E. Puolanne
semanticscholar +1 more source
Is there a continuity of filaments in the sarcomere?
Journal of Theoretical Biology, 1985openaire +3 more sources