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The properties of the Ca channel currents in chick skeletal muscle cells (myoballs) in culture were studied using a suction pipette technique which allows internal perfusion and voltage clamp. The Ca channel currents as carried by Ba ions were recorded, after suppression of currents through ordinary Na, K and Cl channels by absence of Na, K and Cl ions, by(More)
The action potential was recorded from cultured chick skeletal muscle cells in Na-, Ca-, Cl-free saline containing Ba and tetraethylammonium ions (Ba saline). The action potential consisted of two components: a low-threshold, fast inactivating component and a high-threshold, long-lasting component. Both components of the action potential were dependent on(More)
The effects of succinylcholine (SCh: 2 mg/kg) alone and in combination with lidocaine (4.5 mg/kg in two increments) on muscle oxygen consumption (VO2) and blood flow (MBF) in normal and denervated gastrocnemius muscle were studied in 18 dogs anesthetized with halothane (0.94%, end tidal) to examine the interactions of both drugs at the neuromuscular(More)
Blood from non-smoking donors was incubated with Althesin and the PO2 for half-saturation of haemoglobin at standard pH, PCO2 and temperature (P 50) was measured. The mean P 50 values of blood with blood concentrations of Althesin of 0.14 ml/dl and 0.42 ml/dl were greater (1.14 +/- 0.31 (SEM) mm Hg (P less than 0.005) and 2.22 +/- 0.35 (SEM) mm Hg (P less(More)
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