( 1970 ). Calcium and the action potential in smooth muscle . In: Calcium and Cellular Function , ed. Cuthbert, A.W. , pp. 249 – 260 . London: MaCmillan.Bulbring, E., Tomita, T. 1970. Calcium and the action potential in smooth muscle. In : Calcium and Cellular Function. A. W...
Under normal conditions the action potential in Characeae is dependent on the presence of both Cl and Ca 2+ . Cl seems to play a straightforward part as a transient depolarizing flow. The role of Ca 2+ , however, is emerging as an increasingly complex one: there are Ca 2+ concentration ...
In parallel experiments, GT1-7 neurons also showed spontaneous bursts of action potentials that were recorded as action currents from intact cells. The bursts of action currents occurred in characteristic patterns, suggesting an underlying rhythmic oscillation in membrane potential. 2. Depolarization with...
Subcellular Ca2+ releases, whole cell action potential (AP)–induced Ca2+ transients, and APs were recorded in isolated mouse, guinea pig, rabbit, and human SAN cells. Ca2+-Vm kinetic parameters during phases of AP cycles from their ignition to recovery were quantified. Results Although both AP...
Examines the spatial profile of activity-evoked changes in membrane potential and intracellular calcium concentration in the dendrites of hippocampal CA1 pyramidal neurons. Simultaneous somatic and dendritic patch-pipette recording and calcium imaging experiments; Failure of action potential propagation into ...
Inference of action potentials (‘spikes’) from neuronal calcium signals is complicated by the scarcity of simultaneous measurements of action potentials and calcium signals (‘ground truth’). In this study, we compiled a large, diverse ground truth database from publicly available and newly perfor...
Here, we examined myofiber excitability using high-speed confocal microscopy and the voltage-sensitive indicator di-8-butyl-amino-naphthyl-ethylene-pyridinium-propyl-sulfonate (di-8-ANEPPS) to assess the action potential (AP) properties. We also examined AP-induced Ca2+ transients using high-speed ...
Activity-dependent action potential invasion and calcium influx into hippocampal CA1 dendrites The temporal and spatial profile of activity-evoked changes in membrane potential and intracellular calcium concentration in the dendrites of hippocampal C... N Spruston,Y Schiller,G Stuart,... - 《Science...
When an action potential reaches the presynaptic axon terminus, the following results in the release of neurotransmitter into the synaptic cleft: 1. Voltage-gated sodium ions are activated and sodium rushes into the terminus and pushes neu...
Brading, A., Bülbring, E., and Tomita, T., 1969, The effect of sodium and calcium on the action potential of the smooth muscle of the guinea-pig taenia coli,J. Physiol. (London)200:637–654. CASGoogle Scholar Brehm, P., Dunlap, K., and Eckert, R., 1978, Calcium-dependent rep...