Na이온 부하에 의한 흰쥐의 피부 전기저항의 변화

Abstract

Electrical impedences were measured by Wheatstone bridge on the skin of Na ion loaded albino rats tails. Rats were divided in-to 12 groups , 0, I , 2, 3, · ·· 9% of saline solution were injected intravenously to the first ten groups, respectively. One group was administered with normal saline as drinking water, and the rest was fasted completely. When 1% to 4% of salines were injected, there were not any significant changes. When 5% to 9% of salines were injected, there were marked increases of electrical resistance (20% -50%) and decreases of electrical capacity, with severe urination. On the contrary, when distilled water was injected, there were moderate decreases of resistance (20%50%) and increases of capacity. The group which was loaded with normal saline as drinking water revealed progressive increases in electrical resistance till 4th day , but suddenly decreased in the day before death. The fasted group showed no changes for the time being but later showed large decrease in resistance on the day before death.