Electrical excitability of roach (Rutilus rutilus) ventricular myocytes: effects of extracellular K+, temperature, and pacing frequency
Exercise, capture, and handling stress in fish can elevate extracellular K+ concentration ([K+]o) with potential impact on heart function in a temperature- and frequency-dependent manner. To this end, the effects of [K+]o on the excitability of ventricular myocytes of winter-acclimatized roach (_Rutilus rutilus_) (4 ± 0.5°C) were examined at different test temperatures and varying pacing rates. Frequencies corresponding to in ... إقراء المزيد