• 四川大學(xué)華西醫(yī)院麻醉科,四川成都 610041;

目的:探討在不同年齡SD大鼠右心房注射前列腺素E2(PGE2)對(duì)呼吸的影響。方法:7~9 d和21~23 d大鼠在迷走神經(jīng)完整和迷走神經(jīng)切斷的情況下從右心房注射PGE-2,觀察呼吸指標(biāo)的變化。結(jié)果:①右心房注射PGE2在7~9 d和21~23 d大鼠中均引起呼吸暫停,呼氣延長(zhǎng)時(shí)間分別為基礎(chǔ)呼氣時(shí)間的9.5和7.5倍(P lt;0.05);②切斷迷走神經(jīng)后,右心房注射PGE-2在7~9 d和21~23 d大鼠均不再產(chǎn)生呼吸暫停,僅出現(xiàn)輕微呼吸抑制。結(jié)論:右心房注射PGE2在7~9 d和21~23 d大鼠均產(chǎn)生呼吸暫停,且依賴于迷走神經(jīng)的完整性。

引用本文: 孫明潔,基鵬,王茂華,王儒蓉. 右心房注射前列腺素E2對(duì)新生大鼠呼吸的影響. 華西醫(yī)學(xué), 2009, 24(2): 368-370. doi: 復(fù)制

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  2. 2. Hoch B,Bernhard M.Central apnoea and endogenous prostaglandins in neonates[J].Acta Paediatr,2000,89(11):1364-1368..
  3. 3. Ho CY,Gu QH,Hong JL,et al.Prostaglandin E2 enhances chemical and mechanical sensitivities of pulmonary C fibers in the rat[J].Am J Respir Crit Care Med,2000,162(2 pt 1):528533..
  4. 4. 孫眉月.極低出生體重兒并發(fā)呼吸暫停[J].小兒急救醫(yī)學(xué),2002,9(1):1-2..
  5. 5. Fraser J,Walls M,McGuire W.Respiratory complications of preterm birth[J].BMJ,2004,329(7472):962-965..
  6. 6. Wang RR,Xu FD.Postnatal development of right atrial injection of capsaicininduced apneic response in rats[J].J Appl Physiol,2006,101(1):60-67..
  7. 7. Choudry NB,F(xiàn)uller RW,Pride NB.Sensitivity of the human cough reflex:effect of inflammatory mediators prostaglandin E2,bradykinin,and histamine[J].Am Rev Respir Dis,1989,140(1):137141..
  8. 8. Yu J.An overview of vagal airway receptors[J].Acta Physiol Sin,2002,54(6):451-459..
  9. 9. Kollarik M,Undem BJ.Mechanisms of acidinduced activation of airway afferent nerve fibres in guineapig[J].J Physiol,2002,543(Pt 2):591-600..
  10. 10. Hong JL,Ho CY,Kwong K,et al.Activation of pulmonary C fibres by adenosine in anaesthetized rats:role of adenosine A1 receptors[J].J Physiol,1998,508(Pt 1):109-118..