生物醫(yī)學(xué)工程外文翻譯---高能磁場刺激對蟾蜍心臟搏動(dòng)影響的生物學(xué)研究

1、附錄Ⅳ英文文獻(xiàn)及翻譯 附錄Ⅳ英文文獻(xiàn)及翻譯Biological effects of the Magnetic Stimulation on the Toad HeartHongwei Lei,Yuyuan Du,Yina Li,Chunling Liu,Xu Wan2007 IEEE/ICME International Conference on Complex Medical Engineering-CME2007Institut

2、e of Biomedical Engineering, Northeastern University, Shenyang, Liaoning 110004, P.R.CHINAAbstract-We stimulated the exposed toad heart by a low frequency and high energy magnetic. By analyze the data of this experiment,

3、 it shows that the pulsating of the weak toad heart would make change after stimulated by magnetic. Weak heartbeat strengthened, the single peak curve would become the two peaks curve with atria wave and ventricle wave a

4、fter the magnetic stimulation. But the cycling of rhythmic pulsatile curve of toad doesn't change.I. INTRODUTIONAll life forms have magnetism. All kinds of magnetic field would have some effects on the configuration

5、and activities of life forms that whichever environmental magnetic, additional magnetic or inside magnetic of organism. The biologic effects are related to the characteristics and the intension of the magnetic field, as

6、well as the species and the tissues of the life forms.The experimentation showed that magnetism stimulation in some range would control the growth of rat tumour, whatever they are in or out the body. Much more they can i

7、nduce the cancer cells dead.30mT magnetic stimulation would increase the content of NO in the liver and the kidney.Magnetic also can improve the activity of some enzyme and promote the regeneration of nerve tissue.Cell w

8、ould increase, the bones would be concrescence, the scar would be rehabilitate.The blood rheology and blood cell number both of human and rat would change obviously, DI the blood mucosity would be low.Heart is the most i

9、mportant apparatus of life. It pulsates day and night. Heart once stop pulsating, the life for danger.Numerous scholar pays attention to the role of magnetic field.But they just studied the effects of magnetic stimulatio

10、n of the heart pacemaker. The experiments about direct effects of stimulate heart by magnetic is very (made by ourselves);③cardiomuscular transducer;④ Ringer.Sol ;⑤Batrachia instruments; ⑥clip of frog heart; ⑦cotton thr

11、ead; ®burette.B.Experiment animals: toads.III. METHODA. Destroy the brain and the spinal cord of the toad by stylet:Penetrate into the occipital aperture upright with stylet,destroyed the brain upwards, take back th

12、e stylet and destroy the spinal downwards. If the limb of toad were relaxed, it showed that the brain and spinal were destroyed completely.B. Expose the toad heart: Make the toad lying on its back on the winding center.

13、The magnetic aspect is upright through the toad heart.Cut the ventral skin of toad, snip the breastbone,expose the rat heart. Nip the heart tip by clip carefully. Make the cotton thread tied with the clip of frog hear th

14、e linked with the cardiomuscular transducer. Do not make the toad heart leave thorax, or it would disturb the experiment results.C.Noted the result:Connect the cardiomuscular transducer with the computer. Take notes the

15、curve of toad heart without giving the stimulate of magnetic fieldD. After three minutes, noted the weak pulsatile curve.E . Make the magnetic intension 10T, electricize 10s.Stimulate the toad heart and record the pulsat

16、ile curve.IV. RESULTSThe abscissa of cardiac rhythmic pulsatile curve is time, the ordinate is constriction power. Take notes for the pulsatile curve of toad heart that exposed just.We can know the rhythmic pulsatile cyc

17、le of the toad heart is 1.5s from fig 1 which show the cardiac rhythmic pulsatile curve of the toad which was exposed the heart just now. There are two waves in each cycle, one is atria wave, the other is ventricle wave.