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Autoregulation of Organ Circulation:Proof of Artery Dilatation Theory toward Autoregulation Tasuku Nakada 1 , Sumio Nitta 1 , Ryutaro Moriyama 1 , Yoshikazu Arakaki 1 , Yohei Sasaki 1 , Yasuo Seki 1 , Shigehiro Chiba 1 1The Research Institute for Tuberculosis, Leprosy and Cancer, Tohoku University pp.1039-1044
Published Date 1968/12/15
DOI https://doi.org/10.11477/mf.1404201967
  • Abstract
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In the previous paper, the author proposed the "artery dilatation theory" to explain the mechanism of autoregulation in organ circu-lation. The purpose of the present paper is to report several facts obtained from a series of experiments as below, which seem to be in support of the above theory. (1) Perfu-sion of the enclosed saline-filled-lung reveal-ed that the vascular tonus or the myogenic factor per se does not cause the autoregula-tion, but is a factor determining the level (flow rate) of the autoregulation. (2) Rapid freezing method by using liquid nitrogen confirmed histologically that capillaries, ar-terioles, and even vanuoles become dilated after autoregulation has occured. (3) Angio-graphy showed that the autoregulation taken place when the arteries are dilated and the large veins are deflated with the increased arterial pressure.


Copyright © 1968, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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