@inproceedings{oai:jaxa.repo.nii.ac.jp:00013196, author = {安部, 力 and 田中, 邦彦 and 森田, 啓之 and Abe, Chikara and Tanaka, Kunihiko and Morita, Hironobu}, book = {宇宙利用シンポジウム, Space Utilization Research: Proceedings of Space Utilization Symposium}, month = {Feb}, note = {第26回宇宙利用シンポジウム(2010年1月25日-26日, 宇宙航空研究開発機構宇宙科学研究本部相模原キャンパス), The Twenty-sixth Space Utilization Symposium (January 25-26, 2010: ISAS/JAXA Sagamihara, Japan), It is well known that the baroreflex has a significant role in arterial pressure (AP) maintaining during postural change. It is assumed that the AP would decrease during rear up postural change in sinoaortic-denervated rat, and indeed the AP decreased by 15 +/- 1 mmHg during simple rear up in the present study. However, the different AP response was observed in the rear up for water drink: i.e., the AP was increased by 55 +/- 7 mmHg. The AP increased and reached to the plateau level during water drink, and then immediately decreased when the rat stopped drinking. This pressor response was completely abolished by prazosin, and water infusion via the gastric tube did not increase the AP, suggesting that efferent fiber is sympathetic nerve and the afferent receptor might exist in the area from the oral to esophagus. From the present study, it is possible that the orthostatic hypotension can be prevented by water drink., 共催: 日本学術会議, joint hosting: The Science Council of Japan, 資料番号: AA0064730049}, publisher = {宇宙航空研究開発機構宇宙科学研究本部, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)}, title = {飲水による起立性低血圧防止の可能性}, volume = {26}, year = {2010} }