Zobrazeno 1 - 10
of 195
pro vyhledávání: '"Yasuyuki Furukawa"'
Publikováno v:
International Journal of Neurorehabilitation.
Autor:
Yasuyuki Furukawa, Masamichi Hirose, Tokio Nakane, Fumio Kurogouchi, Shigetoshi Chiba, Yoichi Inada
Publikováno v:
Clinical and Experimental Pharmacology and Physiology. 29:666-672
SUMMARY 1. The pacemaker site is known to shift away from the sinoatrial (SA) node in response to autonomic stimuli. 2. To test whether the shifting of the impulse-initiation site that occurs during autonomic nerve stimulation can be explained by the
Publikováno v:
American Journal of Physiology-Heart and Circulatory Physiology. 279:H1201-H1207
Some parasympathetic ganglionic cells are located in the epicardial fat pad between the medial superior vena cava and the aortic root (SVC-Ao fat pad) of the dog. We investigated whether the ganglionic cells in the SVC-Ao fat pad control the right at
Autor:
Yasuyuki Furukawa
Publikováno v:
Folia Pharmacologica Japonica. 114:227-231
The site of impulse origin in the right atrium is generally considered to be a single static locus within the sinoatrial (SA) node. However, it has been recognized that the pacemaker site may shift as a consequence of changes in physiological and pat
Autor:
Yusuke Miyashita, Masato Tsuboi, Koichi Nakajima, Fumio Kurogouchi, Yasuyuki Furukawa, Shigetoshi Chiba, Masamichi Hirose
Publikováno v:
American Journal of Physiology-Heart and Circulatory Physiology. 275:H717-H720
No data are available for the direct effect of C-type natriuretic peptide (CNP) on atrioventricular (AV) conduction in mammalian hearts. Thus we studied the dromotropic effects of CNP-22 injected into the AV node artery in autonomically decentralized
Autor:
Yoshito Nagashima, Masamichi Hirose, Yasuyuki Furukawa, Shigetoshi Chiba, Manoj Lakhe, Yuji Hoyano
Publikováno v:
Journal of Cardiovascular Pharmacology. 31:18-24
Prolongation of the functional recovery of the sinoatrial (SA) nodal pacemaker activity after overdrive, "overdrive suppression," is determined by intrinsic pacemaker activity, pacemaker site, and SA conduction. We investigated the effects of E-4031,
Publikováno v:
American Journal of Physiology-Heart and Circulatory Physiology. 273:H1800-H1806
To investigate the selective parasympathetic control of atrioventricular (AV) conduction during sympathetic activation, we studied the effects of cervical vagus nerve stimulation on the positive dromotropic responses to sympathetic interventions befo
Publikováno v:
Heart and Vessels. 12:229-233
AF-DX 116 is a cardioselective M2 receptor antagonist and, thus, it should induce sinus tachycardia. Since normal ventricular automaticity is suppressed by atrial overdriving, AF-DX 116 might become an antiarrhythmic drug and act by increasing the si
Autor:
Yasuyuki Furukawa, Hiroshi Zenda, Shigetoshi Chiba, Manabu Takei, Yasuyuki Karasawa, Masahiro Narita, Akihiro Tada
Publikováno v:
European Journal of Pharmacology. 334:191-200
We investigated the sympathetic-parasympathetic interactions involved in SA nodal pacemaker activity and AV conductivity in the anesthetized dog heart. Stimulation of the intracardiac parasympathetic nerves to the SA nodal region (SAPS) and stimulati
Publikováno v:
Fundamental & Clinical Pharmacology. 11:331-338
We investigated the effects of terikalant, which blocks inward rectifier K+ current, on the sinus rate, atrial and ventricular contractile force in the isolated, blood-perfused right atrial and left ventricular preparations of dogs, and the effects o