Results 21 to 30 of about 2,186,751 (353)

RyR1-targeted drug discovery pipeline integrating FRET-based high-throughput screening and human myofiber dynamic Ca2+ assays. [PDF]

open access: yes, 2020
Elevated cytoplasmic [Ca2+] is characteristic in severe skeletal and cardiac myopathies, diabetes, and neurodegeneration, and partly results from increased Ca2+ leak from sarcoplasmic reticulum stores via dysregulated ryanodine receptor (RyR) channels ...
Bers, Donald M   +6 more
core   +2 more sources

A Piezoresistive Sensor to Measure Muscle Contraction and Mechanomyography

open access: yesItalian National Conference on Sensors, 2018
Measurement of muscle contraction is mainly achieved through electromyography (EMG) and is an area of interest for many biomedical applications, including prosthesis control and human machine interface. However, EMG has some drawbacks, and there are also
D. Esposito   +6 more
semanticscholar   +1 more source

The Multi-Scale, Three-Dimensional Nature of Skeletal Muscle Contraction.

open access: yesPhysiology, 2019
Muscle contraction is a three-dimensional process, as anyone who has observed a bulging muscle knows. Recent studies suggest that the three-dimensional nature of muscle contraction influences its mechanical output.
T. Roberts   +7 more
semanticscholar   +1 more source

The coagulation of myosin in muscle [PDF]

open access: yes, 1937
The coagulation of myosin is one of the few changes in the proteins of muscle known to take place during contraction and rigor. Although under certain conditions as much as one-third of the total protein of muscle may become insoluble, the significance ...
Mirsky, A. E.
core   +2 more sources

Ultrasound assessment of pelvic floor muscle contraction: reliability and development of an ultrasound‐based contraction scale

open access: yesUltrasound in Obstetrics and Gynecology, 2019
To determine intra‐ and interrater reliability and agreement for ultrasound measurements of pelvic floor muscle contraction and to assess the correlation between ultrasound and vaginal palpation.
M. Nyhus   +6 more
semanticscholar   +1 more source

Endurance training facilitates myoglobin desaturation during muscle contraction in rat skeletal muscle. [PDF]

open access: yes, 2015
At onset of muscle contraction, myoglobin (Mb) immediately releases its bound O2 to the mitochondria. Accordingly, intracellular O2 tension (PmbO2) markedly declines in order to increase muscle O2 uptake (mVO2).
Furuichi, Yasuro   +9 more
core   +1 more source

α8β1 integrin regulates nutrient absorption through an Mfge8-PTEN dependent mechanism. [PDF]

open access: yes, 2016
Coordinated gastrointestinal smooth muscle contraction is critical for proper nutrient absorption and is altered in a number of medical disorders. In this work, we demonstrate a critical role for the RGD-binding integrin α8β1 in promoting nutrient ...
Atabai, Kamran   +12 more
core   +2 more sources

Mechanisms of Vascular Smooth Muscle Contraction and the Basis for Pharmacologic Treatment of Smooth Muscle Disorders

open access: yesPharmacological Reviews, 2016
The smooth muscle cell directly drives the contraction of the vascular wall and hence regulates the size of the blood vessel lumen. We review here the current understanding of the molecular mechanisms by which agonists, therapeutics, and diseases ...
F. Brozovich   +5 more
semanticscholar   +1 more source

A circuit mechanism for the propagation of waves of muscle contraction in Drosophila

open access: yeseLife, 2016
Animals move by adaptively coordinating the sequential activation of muscles. The circuit mechanisms underlying coordinated locomotion are poorly understood. Here, we report on a novel circuit for the propagation of waves of muscle contraction, using the
Akira Fushiki   +5 more
semanticscholar   +1 more source

Muscle Contraction Regulates BDNF/TrkB Signaling to Modulate Synaptic Function through Presynaptic cPKCα and cPKCβI

open access: yesFrontiers in Molecular Neuroscience, 2017
The neurotrophin brain-derived neurotrophic factor (BDNF) acts via tropomyosin-related kinase B receptor (TrkB) to regulate synapse maintenance and function in the neuromuscular system.
Erica Hurtado   +11 more
semanticscholar   +1 more source

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