【摘要】 由光导纤维将氮分子激光（40μJ/脉冲,3脉冲/s）导入6只大白鼠脑左侧皮层,联机叠加记录右侧相应皮质区的诱发电位。然后,利用HPLC法对大鼠6个脑区的四种生物活性物质同时测定。结果表明,激光诱发的N₂₀₀波和P₃₀₀波波幅增高,可能与其加速脑能量代谢率并降低脑内生物活性物质代谢率有关。更多还原

【Abstract】 Nitrogen laser pulses （40μJ/pulse, 3Hz） were guided by optic fiber into left cerebral cortex of six rats. The laser evoked potentials（LEP） in right corresponding cortical area were averaged on line, then, the reduced nicotinamide adenine dinucleotide （NADH）, flavin adenine dinucleotide （FAD）, biopterin （BP） and pterin（PT） in six brain areas were simultaneously assayed by the reverse-phase high-performance liquid chromatography（HPLC）. The results show that the increased amplitudes of N₂₀₀, P₃₀₀ could be related to the increased metabolism rate of brain energy and the decreased biosynthesis of bioactive substances.更多还原