Morphological Studies on the Autonomic Nervous System of Hypertensive Rats : I.Histometrical Study on the Superior Cervical Sympathetic Ganglion of Spontaneously Hypertensive Rats
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概要
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Histometrical studies were performed on the superior cervical sympathetic ganglia of the spontaneously hypertensive rats (OKAMOTO and AOKI) and the following results were obtained. 1. Weights of the ganglia of the spontaneously hypertensive rats were significantly heavier than those of the control normotensives in initial and advanced stages of hypertension. The difference in mean value corresponded to 45 per cent of weights of the controls in initial stage and 31 per cent in advanced stage. 2. Volumes of the ganglia, and nuclear and cellular size of the nerve cells involved in them were significantly larger in the spontaneously hypertensive rats than in the controls from pre-hypertensive stage to advanced stage of hypertension. The volume of the ganglion of the hypertensives exceeded that of the controls by 34, 23 and34 per cent in pre-hypertensive, initial and advanced stages, respectively. Those in nuclear size were 20, 19 and 29 per cent in respective stages, and cellular enlargement was in the range of 20-22 per cent throughout all stages. 3. Total numbers of the nerve cells in the ganglia revealed no significant difference among all materials examined. 4. Additional histopathological findings of the nerve cells showed moderate chromophilia and no meaningful degenerative changes in the spontaneously hypertensive rats as compared with the controls. The former was more remarkable in pre-hypertensive stage and initial stage of hypertension. 5. The probability of sympathetic hyperactivity in the spontaneously hypertensive rats was presumed from the above-mentioned results and discussed in relation to the recent studies in our laboratory.
- 社団法人日本循環器学会の論文
著者
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Matsumoto Masao
Department Of Palhology Faculty Of Medicine Kyoto University
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MATSUMOTO M.
Department of Information Engineering, Shinshu University
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Matsumoto Masao
Department Of Pathology Faculty Of Medicine Kyoto University
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