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Amygdala, Septal area 및 Hippocampus에 Osmotic stimu

Effect of Osmotic Stimulation of the Amygdala, Septal Area and Hippocampus upon Changes in Urinary Volume nad Its Osmolarity

중앙의학 1962년 2권 5호 p.525 ~ 537
文炯魯, 金贊榮,
소속 상세정보
文炯魯 (  ) - 서울대학교 醫科大學 小兒科學敎室
金贊榮 (  ) - 釜山大學校 醫科大學 小兒科學敎室

Abstract


Rabbits weighing 2.0kg were hydrated by intravenous drip infusion of 5% Glucose solution during each study. The osmotic stimulus was applied as 0.1 c. c. of 3% NaCl solution or water into the amygdala, septal area and hippocampus bilaterally using stereotaxic apparatus.
The following results were obtained.
1) Amygdala Four rabbits were included in this group. All of them demonstrated marked antidiuretic responses when 3% NaCl solution was injected into the amygdala. The duration of antidiuresis ranged between 50 minutes to 75 minutes. The urinary osmolarity increased significantly following the stimulation of the amygdala with 3% NaCl solution. A rabbit stimulated with water resulted in acceleration in diuresis although there was little change in urinary osmolarity.
2) Septal Area-Four rabbits in this group stimulates with 3% NaCl solution resulted in marked decrease in urine volume which lasted for 40 minutes to 50 minutes, The urinary osmolarity increased significantly during the antidiuresis, when water was injected into septal area in a rabbit, it caused acceleration in diuresis and slight increase in urinary osmolarity,
3) Hippocampus-In two rabbits stimulates with 3% NaCI solution, similar responses to those described in the other areas were demonstrated. The duration of antidiuresis was 35 minutes and 65 minutes in each.
The results obtained in this study indicate that the amygdala, septal area and hippocampus may play an important selective role in the neural control of the release of ADH in rabbit.

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