Results 261 to 270 of about 98,011 (316)

Endocytosis in Skeletal Muscle Fibers

Experimental Cell Research, 1999
Defining the organization of endocytic pathway in multinucleated skeletal myofibers is crucial to understand the routing of membrane proteins, such as receptors and glucose transporters, through this system. Here we analyzed the organization of the endocytic trafficking pathways in isolated rat myofibers.
Kaisto, T., Rahkila, P., Marjomaki, V., Parton, R. G., Metsikko, K.   +4 more
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Skeletal muscle fiber hyperplasia

Medicine & Science in Sports & Exercise, 1993
Skeletal muscle enlargement in adult animals has been ascribed primarily to changes in fiber cross-sectional area (i.e., fiber hypertrophy); however, recent evidence from several laboratories suggests strongly that fiber hyperplasia contributes to muscle mass increases in adult animals and possibly human athletes.
Antonio, Jose, Gonyea, W. J.
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Fiber Types in Mammalian Skeletal Muscles

Physiological Reviews, 2011
Mammalian skeletal muscle comprises different fiber types, whose identity is first established during embryonic development by intrinsic myogenic control mechanisms and is later modulated by neural and hormonal factors. The relative proportion of the different fiber types varies strikingly between species, and in humans shows significant variability ...
SCHIAFFINO, STEFANO, REGGIANI, CARLO
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Hyperinnervation of Skeletal Muscle Fibers: Dependence on Muscle Activity

Science, 1973
After the motor nerve to the rat soleus muscle was blocked reversibly by local anesthesia, individual muscle fibers became innervated by a transplanted motor nerve without losing their original innervation. Such cross-innervation of the denervated soleus muscle by the same foreign nerve was largely reduced by direct electrical stimulation of the muscle.
J K, Jansen, T, Lomo, K, Nicolaysen, R H, Westgaard   +3 more
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Analysis of the composition of skeletal muscle fibers in skaters' muscles

Bulletin of Experimental Biology and Medicine, 1988
Muscle fibers composition was investigated in vastus lateralis muscles of 103 skaters. In the total population of skaters muscle fibers composition was as follows: muscle fibers, type I--in 54 +/- 2%, muscle fibers, type II A--in 35 +/- 1% and muscle fibers, type II B--in 11 +/- 1%.
V V, Iazvikov, S A, Morozov, A N, Nekrasov   +2 more
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Fiber Type Identification of Human Skeletal Muscle

Journal of Visualized Experiments, 2023
The technique described here can be used to identify specific myosin heavy chain (MHC) isoforms in segments of individual muscle fibers using dot blotting, hereafter referred to as Myosin heavy chain detection by Dot Blotting for IDentification of muscle fiber type (MyDoBID).
Heidy K, Latchman, Stefan G, Wette, Dion J, Ellul, Robyn M, Murphy, Noni T, Frankenberg   +4 more
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Effects of myotoxins on skeletal muscle fibers

Progress in Neurobiology, 1995
This review highlights various aspects of a number of experimental myological alterations, induced by different chemical toxicants, including anticholinesterase, colchicine, vincristine, chloroquine, tetanus toxin, botulinum toxin, reserpine and emetine.
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The Adaptive Potential of Skeletal Muscle Fibers

Canadian Journal of Applied Physiology, 2002
Mammalian skeletal muscle fibers display a great adaptive potential. This potential results from the ability of muscle fibers to adjust their molecular, functional, and metabolic properties in response to altered functional demands, such as changes in neuromuscular activity or mechanical loading.
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Calcium sparks in skeletal muscle fibers

Cell Calcium, 2005
Ca(2+) sparks monitor transient local releases of Ca(2+) from the sarcoplasmic reticulum (SR) into the myoplasm. The release takes place through ryanodine receptors (RYRs), the Ca(2+)-release channels of the SR. In intact fibers from frog skeletal muscle, the temporal and spatial properties of voltage-activated Ca(2+) sparks are well simulated by a ...
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Capillaries within Human Skeletal Muscle Fibers

Pathology - Research and Practice, 1991
Internalized capillaries, i.e. capillaries within muscle fibers, represent a rare myopathological feature. This was systematically studied in 923 muscle biopsy specimens and found in 24, chiefly in the gastrocnemius muscle, more rarely in the biceps and quadriceps muscles affecting males more often than females and most frequently associated with ...
R, Wolf, H H, Goebel, L, Gutmann, S, Schochet   +3 more
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