Results 31 to 40 of about 32,619 (226)

Growth hormone plus resistance exercise attenuate structural changes in rat myotendinous junctions resulting from chronic unloading. [PDF]

open access: yes, 2013
Myotendinous junctions (MTJs) are specialized sites on the muscle surface where forces generated by myofibrils are transmitted across the sarcolemma to the extracellular matrix.
Burattini, S   +8 more
core   +2 more sources

Role of Myofibrillar Protein Catabolism in Development of Glucocorticoid Myopathy: Aging and Functional Activity Aspects

open access: yesMetabolites, 2016
Muscle weakness in corticosteroid myopathy is mainly the result of the destruction and atrophy of the myofibrillar compartment of fast-twitch muscle fibers.
Teet Seene, Priit Kaasik
doaj   +1 more source

Tropomyosin antibody: the specific localization of tropomyosin in nonmuscle cells [PDF]

open access: yes, 1975
An antibody against purified chicken skeletal muscle tropomyosin is used in indirect immunofluorescence to visualize the localization of tropomyosin in a variety of nonmuscle cells.
Lazarides, Elias
core   +2 more sources

Modular proteins from the Drosophila sallimus (sls) gene and their expression in muscles with different extensibility [PDF]

open access: yes, 2007
The passive elasticity of the sarcomere in striated muscle is determined by large modular proteins, such as titin in vertebrates. In insects, the function of titin is divided between two shorter proteins, projectin and sallimus (Sls), which are the ...
Ayme-Southgate   +53 more
core   +1 more source

Unconventional myosins muscle into myofibrils [PDF]

open access: yesJournal of Biological Chemistry, 2019
"Myosin" is famous as a component of muscle fibrils, but the majority of myosin family members act elsewhere with roles unrelated to muscle contraction. The biological functions of a relatively new family of these unconventional myosins, myosins 18A and 18B, are poorly understood. New research from Horsthemke et al.
openaire   +3 more sources

Tension-driven multi-scale self-organisation in human iPSC-derived muscle fibers

open access: yeseLife, 2022
Human muscle is a hierarchically organised tissue with its contractile cells called myofibers packed into large myofiber bundles. Each myofiber contains periodic myofibrils built by hundreds of contractile sarcomeres that generate large mechanical forces.
Qiyan Mao   +16 more
doaj   +1 more source

Independent regulation of Z-lines and M-lines during sarcomere assembly in cardiac myocytes revealed by the automatic image analysis software sarcApp

open access: yeseLife, 2023
Sarcomeres are the basic contractile units within cardiac myocytes, and the collective shortening of sarcomeres aligned along myofibrils generates the force driving the heartbeat.
Abigail C Neininger-Castro   +7 more
doaj   +1 more source

Investigations into the Sarcomeric Protein and Ca2+-Regulation Abnormalities Underlying Hypertrophic Cardiomyopathy in Cats (Felix catus). [PDF]

open access: yes, 2017
Hypertrophic cardiomyopathy (HCM) is the most common single gene inherited cardiomyopathy. In cats (Felix catus) HCM is even more prevalent and affects 16% of the outbred population and up to 26% in pedigree breeds such as Maine Coon and Ragdoll ...
Chan, J   +5 more
core   +2 more sources

Altered splicing of the BIN1 muscle-specific exon in humans and dogs with highly progressive centronuclear myopathy [PDF]

open access: yes, 2013
Amphiphysin 2, encoded by BIN1, is a key factor for membrane sensing and remodelling in different cell types. Homozygous BIN1 mutations in ubiquitously expressed exons are associated with autosomal recessive centronuclear myopathy (CNM), a mildly ...
A Buj-Bello   +58 more
core   +7 more sources

Kinetic mechanism of myofibril ATPase

open access: yesBiophysical Journal, 1994
The kinetic mechanism of myofibril ATPase was investigated using psoas and mixed back muscle over a range of ionic strengths. Myofibrils were labeled with pyrene iodoacetamide to measure the rate constants for the binding of ATP and formation of the weakly attached state.
Ma, Y.Z., Taylor, E.W.
openaire   +2 more sources

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