论文部分内容阅读
为探讨Coriolis加速度刺激下,健康飞行员与有晕厥史飞行员(立位耐力阳性者)某些内分泌激素的区别。选健康飞行员与有晕厥史的飞行员各12名,分别间隔3~4min间断累加地给与3.75π2cm/s2,5.00π2cm/s2,6.25π2cm/s2的Coriolis加速度刺激,用放射免疫法测定血管紧张素-I、醛固酮、皮质醇、胰岛素、胃泌素。结果显示:两组飞行员在Coriolis加速度刺激下均表现醛固酮、血管紧张-II、胃泌素升高(P<0.05),健康飞行员组胰岛素、皮质醇升高(P>0.05)。提示:前庭刺激下,健康飞行员交感与迷走神经兴奋性均升高。有晕厥史的飞行员在Coriolis刺激下自主神经兴奋性下降。有关激素的测定可能成为评价晕厥飞行员自主神经功能状态的手段之一。
To explore the difference between Coriolis acceleration stimuli, some endocrine hormones between healthy pilots and pilots with history of syncope (positive standpoint). Select healthy pilots and pilots with a history of syncope each 12, respectively, intermittent interval of 3 ~ 4min cumulatively give 3.75π2cm / s2, 5.00π2cm / s2, 6.25π2cm / s2 Coriolis acceleration stimulation measured by radioimmunoassay Angiotensin-I, Aldosterone, Cortisol, Insulin, Gastrin. The results showed that both pilots showed aldosterone, angiotensin-II and gastrin (P <0.05) under acceleration of Coriolis acceleration, while insulin and cortisol increased in healthy pilots (P> 0.05). Tip: vestibular stimulation, healthy pilots sympathetic and vagal excitability are elevated. Pilots with a history of syncope showed decreased autonomic excitability under Coriolis stimulation. The determination of hormones may be one of the means to evaluate the functional status of autonomic nerves in fainting pilots.