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为探讨空中晕厥对某些神经内分泌的关系，对１３例在近期内发生过空中晕厥的男性歼击机飞行员，进行了空腹血浆β－内腓肽（β－ＥＰ）、血管紧张素Ⅱ（ＡＴ－Ⅱ）、心钠素（ＡＮＰ）等测定并与３５例条件相似的健康飞行员做对照。结果显示空中晕厥组血浆β－ＥＰ、ＡＴ－Ⅱ升高，ＡＮＰ降低，与对照组比较Ｐ＜０．０５～Ｐ＜０．０１。β－ＥＰ参与情绪和行为调节，晕厥发生后β－ＥＰ升高可能与机体的应激状态有关；ＡＴ－Ⅱ升高提示本组病人肾素－血管紧张素系统功能亢进；ＡＮＰ降低则提示心脏内分泌功能失调。因此，对发生空中晕厥后的飞行人员进行血浆β－ＥＰ、ＡＴ－Ⅱ、ＡＮＰ等测定，有助于了解病人的心理、生理活动水平是否处于正常状态，对飞行结论有参考价值。
To investigate the relationship between syncope and some neuroendocrine diseases, 13 male fighter pilots who had syncope in the near future were subjected to fasting plasma beta-endorphin (β-EP), angiotensin Ⅱ (AT-Ⅱ) ), Atrial natriuretic peptide (ANP), etc. and compared with 35 healthy pilots with similar conditions. The results showed that the plasma levels of β-EP and AT-Ⅱ increased and the ANP decreased in the syncope group, P <0.05 ~ P <0.01 compared with the control group. β-EP is involved in the regulation of mood and behavior. The increase of β-EP after syncope may be related to the stress state of the body. The increase of AT-Ⅱ indicates that the renin-angiotensin system is hyperthyroidism in the patients; Endocrine disorders. Therefore, the determination of plasma β-EP, AT-Ⅱ, ANP and other factors can help to know whether the patient’s mental and physical activities are in normal condition and have reference value for the flight conclusion.