Search

Your search keyword '"Okada, Kenji"' showing total 2 results
Start Over Author "Okada, Kenji" Publisher american physiological society
2 results on '"Okada, Kenji"'

1. Mechanism of biphasic response of renal nerve activity during acute cardiac tamponade in conscious rabbits

Author

Hagiike, Masanobu, Maeta, Hajime, Murakami, Hiroshi, Okada, Kenji, and Morita, Hironobu

Subjects
Rabbits -- Physiological aspects, Heart -- Physiological aspects, Nervous system -- Physiological aspects, Biological sciences
Abstract

A study was conducted to analyze renal sympathetic nerve activity responses to acute cardiac tamponade in rabbits. Cardiac afferent blockade was carried out by intrapericardial infusion of 2% procaine. Results indicated that renal sympathetic nerve activity responses to cardiac tamponade are biphasic, with increases during compensated cardiac tamponade and decreases during decompensated cardiac tamponade.

Published
1999

2. Blockade of neuronal nitric oxide synthase alters the baroreflex control of heart rate in the rabbit

Author

Murakami, Hiroshi, Liu, Jun-Li, Yoneyama, Hirohito, Nishida, Yasuhiro, Okada, Kenji, Kosaka, Hiroaki, Morita, Hironobu, and Zucker, Irving H.

Subjects
Nitric oxide -- Physiological aspects, Enzymes -- Physiological aspects, Rabbits -- Physiological aspects, Heart beat -- Physiological aspects, Nervous system, Sympathetic -- Physiological aspects, Vagus nerve -- Physiological aspects, Biological sciences
Abstract

The impact of the relatively selective neuronal NO synthase inhibitor 7-nitroindazole (7-NI) on the baroreflex regulation of heart rate (HR) and renal sympathetic nerve activity (RSNA) was studied in rabbits. Intraperitoneal injection of 7-NI had no effect on resting heart rate, mean arterial pressure (MAP) or RSNA. 7-NI greatly decreased the lower plateau of the HR-MAP baroreflex curve in conscious and anesthetized preparations. On the other hand, there was no substantial difference in the RSNA-MAP curves before and after 7-NI administration in conscious and anesthetized preparations.

Published
1998

Catalog

Books, media, physical & digital resources
See catalog results