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Browsing by Author "Sun, Y-B."
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2,3-Butanedione monoxime increases speed of relaxation in single muscle fibres of frog
Sun, Y-B.; Lou, Fang; Edman, K.A.P. (2001-05)The effects of 2,3-butanedione monoxime (BDM) on intracellular Ca2+ transient and cross-bridge function were studied in frog single fibres from the anterior tibialis muscle of Rana temporaria (sarcomere length, 2.2 microm; ... -
Calcium- and myosin-dependent changes in troponin structure during activation of heart muscle
Sun, Y-B.; Lou, Fang; Irving, M. (2009)Each heartbeat is triggered by a pulse of intracellular calcium ions which bind to troponin on the actin-containing thin filaments of heart muscle cells, initiating a change in filament structure that allows myosin to bind ... -
The effects of 2,3-butanedione monoxime (BDM) on the force-velocity relation in single muscle fibres of the frog
Sun, Y-B.; Lou, Fang; Edman, K.A.P. (1995-04)The effects of 2,3-butanedione monoxime (BDM) on the force-velocity relation were studied in single fibres from the anterior tibialis muscle of Rana temporaria (2.2 microns sarcomere length, temperature 1.9-2.4 degrees C). ... -
The high-force region of the force-velocity relation in frog skinned muscle fibres
Lou, Fang; Sun, Y-B. (1993-07)The force-velocity relation has been studied during calcium-induced contracture of chemically skinned fibres from the semitendinosus muscle of Rana temporaria with special interest focused on the high-load region. The ... -
Moderate fatigue studied at great sarcomere lengths in frog single muscle fibres
Lou, Fang; Sun, Y-B. (1994-10)Single fibres from the anterior tibialis muscle of Rana temporaria (temperature, 2-3 degrees C) were moderately fatigued at a prestretched sarcomere length (approximately 3.6 microns) by reducing the intervals between 2 s ... -
The relationship between the intracellular Ca2+ transient and the isometric twitch force in frog muscle fibres
Sun, Y-B.; Lou, Fang; Edman, K.A.P. (1996-09)The calcium-sensitive fluorescent indicator fluo-3 was used to monitor the intracellular free calcium concentration ([Ca2+]i) during isometric twitches in twenty-nine single muscle fibres from the anterior tibialis muscle ... -
Variation in myoplasmic Ca2+ concentration during contraction and relaxation studied by the indicator fluo-3 in frog muscle fibres
Caputo, C.; Edman, K.A.P.; Lou, Fang; Sun, Y-B. (1994-07-01)1. The fluorescent dye fluo-3, in its permeant acetoxymethyl form, was used to monitor calcium transients during twitch and tetanus of single fibres isolated from the anterior tibialis muscle of Rana temporaria (2-5 degrees ...