E. Kumamoto

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Single-electrode voltage-clamp techniques were used to examine membrane currents recorded as a result of hyperpolarizing pre-pulses in cat bladder parasympathetic neurones. In 84 ganglion cells examined, two types of current were observed in response to hyperpolarizing pre-pulses of 10 ms to 1 s duration from holding potentials of -30 to -60 mV to test(More)
Referenceless, or self-reference, thermometry is a technique for mapping temperature differences in the region of interest (ROI) using the baseline phase estimated by extrapolating the field in the surrounding region for estimation (RFE) and subtracting the estimated baseline from the measured field. In the present work a self-reference technique based on(More)
The purpose of this study was to evaluate a novel vessel-tracking-based technique for tracking of human liver. The novelty of the proposed technique is that it measures the translation and deformation of a local tissue region based on the displacements of a set of vessels of interest instead of the entire organ. The position of the target point was(More)
1. Intracellular recording techniques were used to examine the action of an irreversible acetylcholine esterase (AChE) inhibitor, soman, on the hyperpolarizations mediated through muscarinic cholinoceptors in cat bladder parasympathetic neurones. 2. Soman (0.1-10 microM) depressed the amplitude and prolonged the duration of the muscarinic slow inhibitory(More)
Intracellular recording techniques were used to study a fast hyperpolarizing potential following the fast excitatory postsynaptic potential evoked by an orthodromic nerve stimulation in cat bladder parasympathetic ganglion cells. In the 61 ganglion cells examined, two types of responses were recorded on stimulating the preganglionic nerve; one had only a(More)
Intracellular recording techniques were used to examine and compare synaptic potentials evoked by stimulating pre- and postganglionic nerve trunks in cat bladder parasympathetic ganglia. In the 76 ganglion cells examined, two types of responses were recorded on stimulating the postganglionic nerve: an antidromic action potential (type PostNS1; n = 30) or a(More)
Intracellular recording techniques were used to study the action of an irreversible anticholinesterase, soman, on cholinergic transmission in cat bladder parasympathetic neurons. With soman (0.1-10 microM) treatment, nicotinic depolarizations were increased in amplitude and prolonged in duration, whereas muscarinic hyperpolarizations showed either a(More)
Responses elicited by stimulating the pre-versus postganglionic nerves were compared in cat bladder parasympathetic neurons. We observed that synaptic potentials recorded on stimulating the postganglionic nerve trunk were different from those elicited with preganglionic nerve stimulation. These findings suggest that local neuronal interactions occur within(More)
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