摘要
本文采用改进的光电容积法测量大鼠左后足血压的方法,发现90dB(A)高频连续稳态噪声对大鼠血压的影响大致可分为两个阶段:第一阶段从噪声暴露开始至第43和第31周,大鼠收缩压和静脉压相应波动较大,呈不稳定状态;第二阶段从第47和第35局开始至实验结束(第91周),噪声组大鼠的收缩压和静脉压相应明显高于对照组,波动减小,呈持续较高状态.噪声对雄鼠和雌鼠血压影响的规律一致.
A modified photoelectric volumetric method was used tomeasure rats'left leg blood pressure(BP)in order to determinethe effect of continuous high frequency noise exposure on theirBP.Result of the study showed that the change in rats'BPduring continuous noise exposure can be divided into twostages:Ist.from the beginning of exposure to the 43rd week(systolic BP)or 31st week(venous BP),their BP showedan unstable manner.At the 2nd stage,from 47th week(systolicBP)or 35th week(venous BP)until 91st week(end of thestudy),both systolic and venous BP became stable andsignificantly higher than that of the control.There wereno difference on the effect of BP of male and female rats byhigh frequency noise.
出处
《中华劳动卫生职业病杂志》
CAS
CSCD
1989年第3期149-151,共3页
Chinese Journal of Industrial Hygiene and Occupational Diseases
