Results 91 to 100 of about 31,768 (245)

Force enhancement after stretch of isolated myofibrils is increased by sarcomere length non-uniformities

open access: yesScientific Reports, 2020
When a muscle is stretched during a contraction, the resulting steady-state force is higher than the isometric force produced at a comparable sarcomere length.
Ricarda M. Haeger, Dilson E. Rassier
doaj   +1 more source

Calcium Homeostasis in Myogenic Differentiation Factor 1 (MyoD)-Transformed, Virally-Transduced, Skin-Derived Equine Myotubes [PDF]

open access: yes, 2014
Dysfunctional skeletal muscle calcium homeostasis plays a central role in the pathophysiology of several human and animal skeletal muscle disorders, in particular, genetic disorders associated with ryanodine receptor 1 (RYR1) mutations, such as malignant
A Hovnanian   +75 more
core   +3 more sources

Effect of soft tissue sample preparation techniques for scanning small‐angle X‐ray scattering experiments

open access: yesJournal of Synchrotron Radiation, EarlyView.
The effect of tissue‐processing techniques, including fixation and embedding, on the structural information obtained from scanning small‐angle X‐ray scattering of muscle and connective tissue has been studied. This provides a framework for sSAXS users working with soft tissues to make an informed choice on the sample preservation method, tailored to ...
Atreyee Acharya   +4 more
wiley   +1 more source

Ultrastructural Study of Muscle Fibers in Experimental Fluorosis

open access: yesJournal of Basic and Applied Research in Biomedicine, 2022
The aim of this study was to evaluate the effect of fluoride on the ultrastructure of skeletal muscle. Wistar albino rats were treated with 300 and 600 mg NaF/ kg bw/day respectively, for 40 days .
A Shashi, Nidhi Rana
doaj   +2 more sources

Giant FAZ10 is required for flagellum attachment zone stabilization and furrow positioning in Trypanosoma brucei [PDF]

open access: yes, 2017
The flagellum and flagellum attachment zone (FAZ) are important cytoskeletal structures in trypanosomatids, being required for motility, cell division and cell morphogenesis.
Baqui, Munira M.A.   +3 more
core   +1 more source

Subcellular partitioning of MRP RNA assessed by ultrastructural and biochemical analysis. [PDF]

open access: yes, 1994
A small RNA encoded within the nucleus is an essential subunit of a RNA processing endonuclease (RNase MRP) hypothesized to generate primers for mitochondrial DNA replication from the heavy strand origin of replication.
Gonzalez, M   +6 more
core  

Examination of the Effects of Heterogeneous Organization of RyR Clusters, Myofibrils and Mitochondria on Ca2+ Release Patterns in Cardiomyocytes [PDF]

open access: yes, 2015
Spatio-temporal dynamics of intracellular calcium, [Ca2+]i, regulate the contractile function of cardiac muscle cells. Measuring [Ca2+]i flux is central to the study of mechanisms that underlie both normal cardiac function and calcium-dependent ...
A Baddeley   +80 more
core   +6 more sources

Heart failure in two male patients with late‐onset Fabry mutation (IVS4 + 919G > A)

open access: yes
ESC Heart Failure, Volume 12, Issue 2, Page 1508-1513, April 2025.
Xufei Yang   +3 more
wiley   +1 more source

Passive shoulder mobility and active shoulder external rotation recovery in upper‐trunk brachial plexus birth injuries after nerve repair

open access: yesDevelopmental Medicine &Child Neurology, EarlyView.
This was a retrospective cohort study of 322 patients with upper trunk brachial plexus birth injury following nerve surgery of C5 and/or C6. We found that a substantial gap remained between passive and active shoulder external rotation in adduction, indicating that passive mobility is not the limiting factor in active external rotation recovery ...
Eva T. E. Ulmann   +3 more
wiley   +1 more source

The unified myofibrillar matrix for force generation in muscle

open access: yesNature Communications, 2020
Skeletal muscle cells have long been considered to be made primarily of many individual, parallel myofibrils. Here, the authors show that the striated muscle contractile machinery forms a highly branched, mesh-like myofibrillar matrix connected across ...
T. Bradley Willingham   +4 more
doaj   +1 more source

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