Results 101 to 110 of about 51,464 (286)

Illuminating cell signaling with genetically encoded FRET biosensors in adult mouse cardiomyocytes. [PDF]

open access: yes, 2018
FRET-based biosensor experiments in adult cardiomyocytes are a powerful way of dissecting the spatiotemporal dynamics of the complicated signaling networks that regulate cardiac health and disease. However, although much information has been gleaned from
Chen-Izu, Ye   +7 more
core  

Evaluation of quantitative muscle MRI and an intelligent phenotyping housing system as advanced phenotyping methods in a mouse model of calpain 3‐deficient muscular dystrophy

open access: yesAnimal Models and Experimental Medicine, EarlyView.
We applied quantitative MRI of the lower limb and automated home‐cage phenotyping to a mouse model of calpainopathy to detect early disease changes. At 15 months, calpain 3‐deficient mice showed increased water T2 values correlating with immune cell infiltration in the soleus and gastrocnemius muscles, while assessment of motor activity revealed only ...
Nicolina Südkamp   +12 more
wiley   +1 more source

Multi‐method analysis for the three‐dimensional reconstruction of muscle fascicles from DiceCT datasets

open access: yesThe Anatomical Record, EarlyView.
Abstract Muscle architecture is a major determinant of muscle performance and, in mammalian lineages, has been correlated with both feeding ecology and locomotor behaviors. Over the past decade, contrast‐enhanced micro‐CT (DiceCT) has emerged as an alternative to traditional dissection‐based measurement.
Aleksandra Ratkiewicz   +5 more
wiley   +1 more source

Cell-cycle regulation of sarcomere integrity-Role for Actn2 phosphorylation. [PDF]

open access: yesPhysiol Rep
Abstract Sarcomeres are the fundamental contractile units of muscle. Despite their importance, sarcomere assembly remains poorly understood. We focused on Actn2, a protein which stabilizes the sarcomere by linking proteins to the Z‐disk. During C2C12 differentiation into myoblasts, Actn2 protein levels remained constant.
Baksh SS   +5 more
europepmc   +2 more sources

Titin Is Present in the Elastic Tethers That Connect Separating Anaphase Chromosomes in Crane‐Fly Spermatocytes

open access: yesCytoskeleton, EarlyView.
ABSTRACT Elastic tethers connect telomeres of separating chromosomes in anaphase of animal cells. Immunofluorescence staining of titin in crane‐fly spermatocytes, using 4 different antibodies, shows that the giant elastic protein titin seems to be a component of mitotic tethers: titin “strands” extend between separating chromosomes, connecting their ...
Demetra Economopoulos   +5 more
wiley   +1 more source

microRNA-1 regulates sarcomere formation and suppresses smooth muscle gene expression in the mammalian heart

open access: yeseLife, 2013
microRNA-1 (miR-1) is an evolutionarily conserved, striated muscle-enriched miRNA. Most mammalian genomes contain two copies of miR-1, and in mice, deletion of a single locus, miR-1-2, causes incompletely penetrant lethality and subtle cardiac defects ...
Amy Heidersbach   +7 more
doaj   +1 more source

Generation of both an shRNA-resistant MEF2A over expression construct and a dominant negative construct in adenovirus for rescue and knockout experiments in muscle [PDF]

open access: yes, 2015
The Myocyte Enhancer Factor-2, or MEF2, transcription factor family is necessary for the differentiation and regeneration of both skeletal and cardiac muscle tissue.
Comeau, Kathryn Marie
core   +1 more source

Fhod3 in zebrafish supports myofibril stability during growth of embryonic skeletal muscle

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Actin filament organization in cardiomyocytes critically depends on the formin Fhod3, but a role for Fhod3 in skeletal muscle development has not yet been described. Results We demonstrate here that in zebrafish mutated for one of two fhod3 paralog genes, fhod3a, skeletal muscle of the trunk appears normal through 2 days post ...
Aubrie Russell   +3 more
wiley   +1 more source

Mechanical signaling in the pathophysiology of critical illness myopathy

open access: yesFrontiers in Physiology, 2016
The complete loss of mechanical stimuli of skeletal muscles, i.e., the loss of external strain, related to weight bearing, and internal strain, related to the contraction of muscle cells, is uniquely observed in pharmacologically paralyzed or deeply ...
Rebeca Corpeño Kalamgi   +2 more
doaj   +1 more source

Systemic aging fuels heart failure: Molecular mechanisms and therapeutic avenues

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 1059-1080, April 2025.
Abstract Systemic aging influences various physiological processes and contributes to structural and functional decline in cardiac tissue. These alterations include an increased incidence of left ventricular hypertrophy, a decline in left ventricular diastolic function, left atrial dilation, atrial fibrillation, myocardial fibrosis and cardiac ...
Zhuyubing Fang   +7 more
wiley   +1 more source

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