高原世居藏族、移居汉族及不同海拔高度中老年人超氧化物岐化酶的对照观察

OBSERVATION OF RBC-SOD IN NATIVE TIBETANS AND MIGKATED HANS AT HIGH ALTITUDE AND HANS AT DIFFERENT AITITUDES

本文采用了微量指血法测定了青海天峻地区(海拔3460m)的世居藏族、移居汉族和西宁地区(海拔2260m)以及苏州市(海拔5.8m)共359健康人的红细胞—超氧化物岐化酶(RBC—SOD)结果表明:①世居藏族成人RBC—SOD较移居汉族低,其中青壮年组差异显著(P<0.01),中老年组差异不明显(P>0.05)②随着海拔高度的升高,中、老年人体内RBC—SOD活性降低(P<0.01)。③随增龄RBC—SOD活性下降(P<0.01)。本文对上述改变的原因进行了初步探讨。

RBC—SOD in 359 cases of healthy persons was tested by determination of micro finger blood in native Tibetans. migrated Hans at Tianjun (3 460m) and hans at Xining (2 260m) and Suzhou (5. 8m). the results showed that the RBC—SOD value of native Tibetans was lower than that of migrated Hans. Among that it was significantiy different (P<0.01) in group of youth, and it wasnot significantly different (P>0.05) in middle aged and elderly group. RBC—SOD activity of middle aged and aging group was significantly low (Pc0.01) with increase of altitude. RBC—SOD activity was significantly low (P<0.01) with increase of age. the reasons of that were discussed preliminarity in this paper.