RESULTS: In stress group, BPs increased before and after stress stimulation,but decreased levels NO concentrations of plasma, and there was no detectable amounts of NO in auricl e, ventricle, vessel and adrenal.

• 应激 +L arg (精氨酸 )组应激前后BP变化不明显。 应激后血浆中NO的浓度明显降低 ,心耳、心室、血管、肾上腺中的NO几乎难以测出 ,而应激 +L arg组的大鼠经过 1 5d的应激刺激 ,血浆及血管组织中的NO浓度 ,明显升高。