The effects of infrasound on the ultrastructure of the rat pallium
- VernacularTitle:次声不同时间作用后对大鼠大脑皮质超微结构的影响
- Author:
Di TANG
;
Jingzao CHEN
;
Ling LI
;
Jing LIU
- Publication Type:Journal Article
- Keywords:
Infrasound;
Pallium;
Ultrastructure
- From:
Chinese Journal of Physical Medicine and Rehabilitation
2003;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To further investigate the threshold value and the dose-effect relationship of infrasound on the rat pallium, and to observe the effects on the pallium's ultrastructure. Methods Rats were exposed to 16 Hz, 90 dB infrasound for 2 hours daily. With a transmission electron microscope, changes in the ultrastructure of the cortex of the rats' parietal lobes were observed 2 hours, 3 days and 7 days after the treatment. Results There were no changes in the ultrastructure of the pallium in rats which had been exposed for 7 days or 14 days. Denaturation appeared when the rats had been exposed for 21 days, 28 days or 35 days. Denaturation become more serious as the exposure time increased beyond 21 days. Denaturation and damage gradually returned to normal with time after exposure. Conclusion 16 Hz, 90 dB infrasound exposure over an extended time may cause denaturation and other changes in the ultrastructure of the pallium in rats. Such changes can return to normal with time.
