Results 21 to 30 of about 1,504,818 (288)

Actions of caffeine on fast‐ and slow‐twitch muscles of the rat. [PDF]

The Journal of Physiology, 1989
1. The effects of caffeine (0.2‐20 mmol l‐1) have been examined on calcium transients (measured with aequorin) and isometric force in intact bundles of fibres from soleus (slow‐twitch) and extensor digitorum longus (EDL; fast‐twitch) muscles of the rat. 2.
M W, Fryer, I R, Neering
openaire   +2 more sources

“Biqi” Bayberry Extract Promotes Skeletal Muscle Fiber Type Remodeling by Increasing Fast Myofiber Formation via the Akt/FoxO1 Pathway in Mice

Foods, 2023
Bayberry is known to be a rich source of natural flavonoids and has been reported to have various health-promoting abilities. However, its function on regulating skeletal muscle fiber type remains unclear.
Jinjie Li, Yi Li, Xiangying Suo, Jiangtao Li, Da Huang, Guangning Kou   +5 more
doaj   +1 more source

Role of the JP45-Calsequestrin Complex on Calcium Entry in Slow Twitch Skeletal Muscles [PDF]

, 2016
We exploited a variety of mouse models to assess the roles of JP45-CASQ1 (CASQ, calsequestrin) and JP45-CASQ2 on calcium entry in slow twitch muscles.
Treves S, Treves, Susan, TREVES, Susan Nella, Protasi F, De Negri M4, Bongianino, Rossana, Bergamelli L, De Negri M, Bongianino R4, Mosca B, Priori, Silvia G., Priori SG, Zorzato, Francesco, Eckhardt J, Eckhardt, Jan, Mosca, Barbara, Bergamelli, Leda, Protasi F6, PRIORI, SILVIA GIULIANA, Zorzato F, De Negri, Marco, Eckhardt J2, Protasi, Feliciano, Bongianino R, Priori SG5   +24 more
core   +1 more source

Energetics of fast‐ and slow‐twitch muscles of the mouse.

The Journal of Physiology, 1993
1. The energetic cost of work performance by mouse fast‐ and slow‐twitch muscle was assessed by measuring the rates of thermal and mechanical energy liberation of the muscles at 21 degrees C. Thermal energy (heat) liberation was measured using a fast‐responding thermopile. 2.
Barclay, C. J., Constable, J. K., Gibbs, C. L.   +2 more
openaire   +6 more sources

Noninvasive Estimation of Myosin Heavy Chain Composition in Human Skeletal Muscle [PDF]

, 2011
Purpose: Information on muscle fiber type composition is of great importance in muscle physiology and athletic performance. Because there are only a few techniques available that noninvasively and accurately provide an estimate of muscle fiber type ...
Rittweger, Jörn, JÖRN RITTWEGER, IGOR B. MEKJAVIĆ, Pisot, Rado, BOŠTJAN ŠIMUNIČ, Degens, Hans, Narici, M., Mekjavic, Igor, RADO PIŠOT, Pišot, R., MARCO NARICI, Degens, H., Simunic, Bostjan, Simunič, B., HANS DEGENS, Narici, Marco, Mekjavić, I. B., Rittweger, J.   +17 more
core   +1 more source

Skeletal muscle and fiber type-specific intramyocellular lipid accumulation in obese mice

Biomolecules & Biomedicine, 2021
In obesity, accumulation of lipid droplets in skeletal muscle fibers and a shift towards fast muscle fiber types can both contribute to insulin resistance.
Nejc Umek, Simon Horvat, Erika Cvetko
doaj   +1 more source

Minocycline Treatment Reduces Mass and Force Output From Fast-Twitch Mouse Muscles and Inhibits Myosin Production in C2C12 Myotubes

Frontiers in Physiology, 2021
Minocycline, a tetracycline-class of antibiotic, has been tested with mixed effectiveness on neuromuscular disorders such as amyotrophic lateral sclerosis, autoimmune neuritis and muscular dystrophy.
Leonit Kiriaev, Ben D. Perry, David A. Mahns, Peter J. Shortland, Asma Redwan, John W. Morley, Stewart I. Head   +6 more
doaj   +1 more source

The transcriptional coactivator PGC-1α is dispensable for chronic overload-induced skeletal muscle hypertrophy and metabolic remodeling [PDF]

, 2013
Skeletal muscle mass loss and dysfunction have been linked to many diseases. Conversely, resistance exercise, mainly by activating mammalian target of rapamycin complex 1 (mTORC1), promotes skeletal muscle hypertrophy and exerts several therapeutic ...
Handschin, Christoph, Santos, Gesa, Zorzato, Francesco, Perez-Schindler, J, Zorzato, F, Summermatter, S, Summermatter, Serge, Santos, G, Pérez-Schindler, Joaquín, Handschin, C   +9 more
core   +1 more source

Paxilline Prevents the Onset of Myotonic Stiffness in Pharmacologically Induced Myotonia: A Preclinical Investigation

Frontiers in Physiology, 2020
Reduced Cl− conductance causes inhibited muscle relaxation after forceful voluntary contraction due to muscle membrane hyperexcitability. This represents the pathomechanism of myotonia congenita.
Kerstin Hoppe, Kerstin Hoppe, Tina Sartorius, Sunisa Chaiklieng, Sunisa Chaiklieng, Georg Wietzorrek, Peter Ruth, Karin Jurkat-Rott, Scott Wearing, Scott Wearing, Frank Lehmann-Horn, Werner Klingler, Werner Klingler, Werner Klingler, Werner Klingler   +14 more
doaj   +1 more source

Physical inactivity induces insulin resistance in plantaris muscle through protein tyrosine phosphatase 1B activation in mice

Frontiers in Physiology, 2023
Inactivity causes insulin resistance in skeletal muscle and exacerbates various lifestyle-related diseases. We previously found that 24-h hindlimb cast immobilization (HCI) of the predominantly slow-twitch soleus muscle increased intramyocellular ...
Saori Kakehi, Saori Kakehi, Yoshifumi Tamura, Yoshifumi Tamura, Shin-ichi Ikeda, Shin-ichi Ikeda, Naoko Kaga, Hikari Taka, Yuya Nishida, Ryuzo Kawamori, Ryuzo Kawamori, Hirotaka Watada, Hirotaka Watada   +12 more
doaj   +1 more source