EFFECTS OF DIACETYL MONOXIME ON NEUROMUSCULAR TRANSMISSION

A note on urea estimation by diacetyl monoxime.

Rosenthal (1955) has described in great detail a method using diacetyl monoxime which is generally satisfactory for the routine estimation of urea in blood and urine except that complete colour development requires prolonged heating in boiling water. This disadvantage can be overcome by the use of a pressure cooker. The tubes of reaction mixture are immersed in a beaker filled with hot water to...

Effects of mechanical uncouplers, diacetyl monoxime, and cytochalasin-D on the electrophysiology of perfused mouse hearts.

Chemical uncouplers diacetyl monoxime (DAM) and cytochalasin D (cyto-D) are used to abolish cardiac contractions in optical studies, yet alter intracellular Ca(2+) concentration ([Ca(2+)](i)) handling and vulnerability to arrhythmias in a species-dependent manner. The effects of uncouplers were investigated in perfused mouse hearts labeled with rhod-2/AM or 4-[beta-[2-(di-n-butylamino)-6-naphth...

Effects of diacetyl monoxime and cytochalasin D on ventricular fibrillation in swine right ventricles.

Whether or not the excitation-contraction (E-C) uncoupler diacetyl monoxime (DAM) and cytochalacin D (Cyto D) alter the ventricular fibrillation (VF) activation patterns is unclear. We recorded single cell action potentials and performed optical mapping in isolated perfused swine right ventricles (RV) at different concentrations of DAM and Cyto D. Increasing the concentration of DAM results in ...

Effects of Buthus eupeus Venom on Neuromuscular Transmission on Striated Muscle In Vitro

In this study, effects of Buthus eupeus venom on chick biventer cervices nerve-muscle preparation were investigated by twitch tension method. The venom, at 1.3 ?g/ml, increased contractile responses in indirect stimulations. These effects were milder in direct muscle stimulations. It also caused significant enhancement in postjunctional sensitivity as assessed by responses to exogenous acetylch...

A study of the reaction of urea with diacetyl monoxime and diacetyl.