文献曾报道了噪声对大鼠血压的长期效应,但尚未见短期实验的报道。本文目的在于探讨短期接触105dB(A)的老龄大鼠其血压变化规律及变化的机理。 噪声实验室本底噪声<33 dB(A)。以高频率(主频率为5000 Hz)稳态105 dB(A)噪声刺激大鼠。室温基本控制在18.5±2°G。实验动物为我校繁殖的雄性Wistar大鼠。在本学院动物室饲养半年左右。体重 The literature has reported long-term effects of noise on rat blood pressure, but no short-term experiments have been reported. The purpose of this article is to investigate the changes in blood pressure and the mechanism of the changes in short-term exposure to 105 dB (A) aged rats. Noise Laboratory noise floor <33 dB (A). Rats were stimulated with steady-state 105 dB (A) noise at high frequency (main frequency of 5000 Hz). Room temperature is basically controlled at 18.5 ± 2 ° G. Experimental animals Male Wistar rats that we breed in our school. In the college animal room for about six months. body weight