L Cedrini

We don’t have enough information about this author to calculate their statistics. If you think this is an error let us know.
Learn More
Isometric twitches and intra- and extracellular electrical activity were recorded at various driving rates from lizard ventricles, either in the normal inotropic state, or in a hypodynamic state induced by perfusing at a high flow rate for a long time. Electron micrographs were obtained from hearts fixed immediately after dissection and from preparations(More)
The effects of crude B. gabonica venom on single ventricular myocytes from guinea-pig hearts were studied using the patch clamp technique in the 'whole cell' mode. Irreversible effects on the membrane currents, which became prominent within 15 min of venom application, were: (1) a decrease in the time invariant current (associated with the inward rectifying(More)
After a prolonged hypothermic incubation (48 h at 4 degrees C), lizard ventricles perfused with a solution containing 15 mM k+ and 1 mM Ca2+ exhibit slow responses, which are similar (prescinding from their noticeable greater duration) to the responses which can be elicited, in the same depolarizing solution, by increasing the external calcium concentration(More)
The staircases drawn by the isometric twitches up to the attainment of the steady-state at frequencies in the range of 1 to 60 min-1 have been studied in superfused half-ventricles of lizard, showing a normal inotropic state. The differences between the instantaneous twitch tension and the steady-state value has proved to be fitted by the algebraic sum of 3(More)
  • 1