Temperature and end-plate currents in rat diaphragm.

Block of quantal end-plate currents of mouse muscle by physostigmine and procaine.

of quantal end-plate currents of mouse muscle by physostigmine and procaine. Quantal endplate currents (qEPCs) were recorded from hemidiaphragms of mice by means of a macro-patch-clamp electrode. Excitation was blocked with tetrodotoxin, and quantal release was elicited by depolarizing pulses through the electrode. Physostigmine (Phys) or procaine (Proc) was applied to the recording site by per...

Effect of temperature on endplate potential rundown and recovery in rat diaphragm.

The amplitude of neuromuscular junction end-plate potentials (EPPs) decreases quickly within a train but recovers nearly completely from train to train during intermittent stimulation. Rundown has been shown to be dependent not only on the rate of transmitter release but also on the rate of replenishment of the depleted neurotransmitter at the site of release. Two groups of processes have been ...

The temperature dependence of the time course of growth and decay of miniature end-plate currents in carp extraocular muscle following thermal acclimation.

1. The effect of temperature (5-35 degrees C) on the decay and growth phases of miniature end-plate currents (MEPCs) was investigated in extraocular muscle from freshwater carp acclimated to either high (28 degrees C) or low (8 degrees C) temperature. 2. The temperature dependence of the time constant of decay (TD) was found to follow an Arrhenius relationship; the relationship between logTD an...

Comparison of nerve repair with end to end, end to side with window and end to side without window methods in lower extremity of rat

  Abstract   Background : Although, different studies on end-to-side nerve repair, results are controversial. The importance of this method in case is unavailability of proximal nerve. In this method, donor nerves also remain intact and without injury. In compare to other classic procedures, end-to-side repair is not much time consuming and needs less dissection. Overall, the previous studies i...

Adrenergic Stimulation of Rat Diaphragm