- 作者: 方懷時; 陳朝?
- 作者服務機構: 國立臺灣大學醫學院生理學科
- 中文摘要: ′此次共用公鼠四十六隻·半數作為對照組,半數作為實驗組。 先使實驗鼠預先遭受較快之減壓共二十次(於十分之四秒內自760mmHg之一個大氣壓減至30mmHg,每隔一日遭受此種派壓一次),繼使休息四天,然後使其與對照鼠共同遭受一次極快之減壓(又稱爆炸性減壓。於百分之四秒內自一個大氣壓驟減至30mmHg),則實驗鼠由極快滅壓導致肺出血之程度遠較對照鼠者為輕。至於實驗鼠因極快減壓所引起之死亡率,亦較對照鼠者顯著降低。由肺出血之程度及死亡率觀之,知實驗鼠對於極快減壓具有較強之抵抗能力。 實驗鼠經二十次快速減壓後對極快減壓之耐受能力雖可增強,但於遭受二十次快速減壓過程中(共約六個星期),其生長率較對照鼠者顯著緩慢,
- 英文摘要: Forty-six unanesthetized male rats were used, 23 served as controlsand.23 as experimental animals. The experimental animal was repeatedlydecompressed from 760 to 30 mmHg in 0.4 seconds for a total of 20 exposures.Forty-eight hour periods at one atmospheric pressure were allowed betweeneach exposure. Following the last exposure, the experimental animal wasallowed to live an additional 4 days for recuperation and then explosivelydecompressed (760 to 30 mmHg in 0.04 seconds) togather with the controlanimal. The results seem to indicate that susceptibility to the damage, ofexplosive decompression is decreased as far as the severity of pulmonaryhemorrhage and motality are concerned if a 4-day period of recuperationis allowed following a total of 20 exposures. In other words, previousrepeated decompressions resulted in an increased tolerance to a‘singleexplosive decompression at a faster rate with the same pressure differential.The experimental animals could tolerate such exposures, but failed tomaintain a normal rate of growth during the days on which repeatedexplosive decompressions were made.
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