Results 261 to 270 of about 167,552 (311)

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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Abnormal connections between skeletal muscle fibers

Electroencephalography and Clinical Neurophysiology, 1969
Abstract In two apparently healthy subjects EMG findings have been made of a type not previously encountered. The jitter between the muscle fiber action potentials from two different muscle fibers belonging to the same motor unit was only 2–3 μsec (S.D.), which is far less than that normally obtained (10–30 μsec).
J, Ekstedt, E, Stålberg
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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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Mammalian Skeletal Muscle Fiber Type Transitions

1997
Mammalian skeletal muscle is an extremely heterogeneous tissue, composed of a large variety of fiber types. These fibers, however, are not fixed units but represent highly versatile entities capable of responding to altered functional demands and a variety of signals by changing their phenotypic profiles.
D, Pette, R S, Staron
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Intracellular bicarbonate in single skeletal muscle fibers

Pfl�gers Archiv European Journal of Physiology, 1974
This is the first direct potentiometric determination of intracellular bicarbonate concentration. The new method involves the use of a double-barrelled HCO3 −-selective liquid ion-exchange microelectrode that permits the simultaneous determination of intracellular [HCO3 −] and membrane PD of single cells.
R N, Khuri, K K, Bogharian, S K, Agulian
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How Do Skinned Skeletal Muscle Fibers Relax?

Biochemical and Biophysical Research Communications, 1999
When free calcium is rapidly removed from skinned fibres using the photolabile Ca2+ chelator diazo-2, they relax without an appreciable change in sarcomere length (
B K, Hoskins, S, Lipscomb, I P, Mulligan, C C, Ashley   +3 more
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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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Chloride channels in toad skeletal muscle fibers

Journal of Experimental Zoology, 2000
Chloride currents were measured in short lumbricalis fibers of toads (Bufo arenarum) with voltage and patch clamp techniques. For the availability of chloride currents we applied a double-pulse technique in voltage-clamped fibers. When the test pulse was preceded by a positive prepulse, the initial current was larger than with a negative prepulse and ...
G C, Bertrán, B A, Kotsias
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Sodium currents in human skeletal muscle fibers

Muscle & Nerve, 1982
AbstractSodium currents from human external intercostal muscle fibers were recorded using the Hille‐Campbell voltage clamp method. Sodium currents are analyzed in terms of the m and h parameters of the Hodgkin‐Huxley model. The results indicate that the kinetics and voltage dependence of sodium currents in human skeletal muscle fibers are very similar ...
T E, DeCoursey, S H, Bryant, R J, Lipicky   +2 more
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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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