Results 71 to 80 of about 19,828 (252)

ULTRASTRUCTURAL FEATURES OF CARDIOMYOCYTE CONTRACTILE APPARATUS IN RAT OFFSPRING HEARTS FOLLOWING MATERNAL CHRONIC ALCOHOL INTOXICATION

Проблеми екології та медицини
Background. The mechanisms underlying the development of the heart contractile apparatus and the distribution of myofibrils in cardiomyocytes following intrauterine ethanol intoxication continue to be a topic of significant debate.
I.V. Tverdokhlib, D.G. Marchenko
doaj   +1 more source

Directionality of developing skeletal muscles is set by mechanical forces

Nature Communications, 2023
Formation of oriented myofibrils is a key event in musculoskeletal development. However, the mechanisms that drive myocyte orientation and fusion to control muscle directionality in adults remain enigmatic.
Kazunori Sunadome, Alek G. Erickson, Delf Kah, Ben Fabry, Csaba Adori, Polina Kameneva, Louis Faure, Shigeaki Kanatani, Marketa Kaucka, Ivar Dehnisch Ellström, Marketa Tesarova, Tomas Zikmund, Jozef Kaiser, Steven Edwards, Koichiro Maki, Taiji Adachi, Takuya Yamamoto, Kaj Fried, Igor Adameyko   +18 more
doaj   +1 more source

Transcriptomic comparative study between canalicular adenoma and HMGA2::WIF1 canalicular‐like pleomorphic adenoma

The Journal of Pathology, EarlyView.
Abstract Canalicular adenoma (CA) is a benign salivary gland tumor predominantly affecting the upper lip and is characterized by monomorphic epithelial cells arranged in branching cords within a loose and vascularized stroma. Unlike pleomorphic adenoma (PA), CA lacks a chondroid matrix and exhibits specific histological features, such as high cuboidal ...
Ziyad Alsugair, Anne Champagnac, Maxime Fieux, Pierre Philouze, Philippe Ceruse, Brice Thamphya, Daniel Pissaloux, Franck Tirode, Nazim Benzerdjeb   +8 more
wiley   +1 more source

Effects of Chronic Atrial Fibrillation on Active and Passive Force Generation in Human Atrial Myofibrils [PDF]

, 2010
Rationale: Chronic atrial fibrillation (cAF) is associated with atrial contractile dysfunction. Sarcomere remodeling may contribute to this contractile disorder.
Piroddi, N., FERRANTINI C, PIRODDI N, Mugelli, A., van der Velden, J., Toniolo, L., MEARINI G, VAN DER VELDEN J, Cerbai, E., BELUS A, Cazorla, Olivier, Rossi, A., DROST M, Velden, J. van der, POGGESI C., Mearini, G., TESI C, MUGELLI A, CARRIER L, Belus, A., ROSSI A, Cazorla, O., Drost, M., TONIOLO, LUANA, CERBAI E, Ferrantini, C., Tesi, C., Poggesi, C., Carrier, L., CAZORLA O   +29 more
core   +1 more source

Polarization-resolved microscopy reveals a muscle myosin motor-independent mechanism of molecular actin ordering during sarcomere maturation.

PLoS Biology, 2018
Sarcomeres are stereotyped force-producing mini-machines of striated muscles. Each sarcomere contains a pseudocrystalline order of bipolar actin and myosin filaments, which are linked by titin filaments.
Olivier Loison, Manuela Weitkunat, Aynur Kaya-Çopur, Camila Nascimento Alves, Till Matzat, Maria L Spletter, Stefan Luschnig, Sophie Brasselet, Pierre-François Lenne, Frank Schnorrer   +9 more
doaj   +1 more source

Specific Staining of Muscle Cytoskeletal Proteins in Litopenaeus vannamei and Their Role in Textural Deterioration during Refrigeration [PDF]

Shipin Kexue
To clarify the key material basis for the rapid softening of shrimp muscle during refrigeration, this study established a specific histological detection method for cytoskeletal proteins and analyzed the correlation between the degradation of ...
CAI Peifeng, LIAO Weilong, FENG Jun, HU Li, LI Caihong, XU Defeng
doaj   +1 more source

Effects of Protein Kinase A on the Phosphorylation Status and Transverse Stiffness of Cardiac Myofibrils

Journal of Pharmacological Sciences, 2013
Stimulation of β-adrenergic receptors in cardiac myocytes activates cyclic AMP– dependent protein kinase A (PKA). PKA-mediated phosphorylation of myofibrils decreases their longitudinal stiffness, but its effect on transverse stiffness is not fully ...
Yoshiki Ohnuki, Takenori Yamada, Yasumasa Mototani, Daisuke Umeki, Kouichi Shiozawa, Takayuki Fujita, Yasutake Saeki, Satoshi Okumura   +7 more
doaj   +1 more source

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

Developmental 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, Jochem Nagels, Willem Pondaag, Martijn J. A. Malessy   +3 more
wiley   +1 more source

A novel imaging method (FIM-ID) reveals that myofibrillogenesis plays a major role in the mechanically induced growth of skeletal muscle

eLife
An increase in mechanical loading, such as that which occurs during resistance exercise, induces radial growth of muscle fibers (i.e. an increase in cross-sectional area).
Kent W Jorgenson, Jamie E Hibbert, Ramy KA Sayed, Anthony N Lange, Joshua S Godwin, Paulo HC Mesquita, Bradley A Ruple, Mason C McIntosh, Andreas N Kavazis, Michael D Roberts, Troy A Hornberger   +10 more
doaj   +1 more source

Ocular Manifestations of Infectious Salmon Anaemia Virus Infection in Atlantic Salmon (Salmo salar)

Journal of Fish Diseases, EarlyView.
ABSTRACT Eyes are essential sensory organs needed by teleost Atlantic salmon for high visual acuity and survival in both the wild and in aquaculture settings. In this work, we assessed the ocular manifestations of Infectious Salmon Anaemia Virus (ISAV) infection in Atlantic salmon by a cohabitation‐mediated infection assay and histological and ...
Emily Mahon, Rebecca R. Kwabiah, Hélène Paradis, Manuel A. Soto‐Dávila, Sathees Duglas, Raja Ram Gurung, Thurka Paramanathan, Ignacio Vasquez, Shams Al‐Badoosh, John Law, Javier Santander, Mark D. Fast, Robert L. Gendron   +12 more
wiley   +1 more source