目的:探讨在不同年龄SD大鼠右心房注射前列腺素E2(PGE2)对呼吸的影响。方法:7~9 d和21~23 d大鼠在迷走神经完整和迷走神经切断的情况下从右心房注射PGE-2,观察呼吸指标的变化。结果:①右心房注射PGE2在7~9 d和21~23 d大鼠中均引起呼吸暂停,呼气延长时间分别为基础呼气时间的9.5和7.5倍(P lt;0.05);②切断迷走神经后,右心房注射PGE-2在7~9 d和21~23 d大鼠均不再产生呼吸暂停,仅出现轻微呼吸抑制。结论:右心房注射PGE2在7~9 d和21~23 d大鼠均产生呼吸暂停,且依赖于迷走神经的完整性。
Citation:
SUN Mingjie,JI Peng,WANG Maohua,et al. The Effect of Right Atrial Injection of PGE-2 on Respiration in Neonatal Rats. West China Medical Journal, 2009, 24(2): 368-370. doi:
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- 4. 孙眉月.极低出生体重儿并发呼吸暂停[J].小儿急救医学,2002,9(1):1-2..
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- 6. Wang RR,Xu FD.Postnatal development of right atrial injection of capsaicininduced apneic response in rats[J].J Appl Physiol,2006,101(1):60-67..
- 7. Choudry NB,Fuller RW,Pride NB.Sensitivity of the human cough reflex:effect of inflammatory mediators prostaglandin E2,bradykinin,and histamine[J].Am Rev Respir Dis,1989,140(1):137141..
- 8. Yu J.An overview of vagal airway receptors[J].Acta Physiol Sin,2002,54(6):451-459..
- 9. Kollarik M,Undem BJ.Mechanisms of acidinduced activation of airway afferent nerve fibres in guineapig[J].J Physiol,2002,543(Pt 2):591-600..
- 10. Hong JL,Ho CY,Kwong K,et al.Activation of pulmonary C fibres by adenosine in anaesthetized rats:role of adenosine A1 receptors[J].J Physiol,1998,508(Pt 1):109-118..