[Effect of heat, noise and their combination on plasma and myocardial angiotensin II in rats].
Effects of heat (40 degrees C, relative humidity 82%), noise (115dB) and the combination of heat and noise on angiotensin (A II) content in plasma and myocardia was observed in rats. The results showed: (1) plasma A II in control group, heat group, noise group and combined group were 358.72 +/- 35.78, 624.08 +/- 36.32, 783.27 +/- 34.32 and 619.65 +/- 37.72 pg/ml respectively. The A II content in heat group, noise group and combined group are significantly higher than that of the control group (P<0.01). The increase in noise group was significant as compared with those in the heat group and combined group (P<0.05). (2) The myocardia A II in control group, heat group, noise group and combined group were 594.78 +/- 82.46, 935.10 +/- 15l.51, 326.22 +/- 28.45, and 438.37 +/- 58.63 pg/mg W.W respectively. The myocardial A II content in heat group was significantly higher (P<0.01), but that in noise group than the control was significantly lower(P<0.O5).
Ma
G
G
Naval General Hospital, Beijing, China.
Qin
S
S
Yu
Q
Q
Zhao
Y
Y
Hao
W
W
D000804:Angiotensin II / Q000097:blood / Q000378:metabolism*; D000818:Animals; D004781:Environmental Exposure; D006358:Hot Temperature / Q000009:adverse effects*; D009206:Myocardium / Q000378:metabolism*; D009622:Noise / Q000009:adverse effects*; D051381:Rats; D017208:Rats, Wistar
D000804:Angiotensin II