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The toxic effects of nitroquine-dapsone compound(NQD)in mice and dogs were studied.The therapeutic index of NQDin mice is 1911,the greatest among the 6 antimalarials tested.Thetoxic effects of NQD(50 mg/kg/day for 3 days per os)and nitro-quine in dogs were manifested by injuries on the adrenal cortexand intestinal epithelium.When folic acid(4 mg/kg/day for 4 days)or calcium leucovorinum(0.3 mg/kg/day for 4 days)were usedconcomitantly with NQD,the death rate and the incidence of dia-rrhea in the toxicated dogs were greatly reduced,the injury on theintestinal epithelium was much milder,and the goblet cells weremuch more numerous than those without treatment.The results suggestthat folic acid and calcium leucovorinum can protect the undifferen-tiated cells in the intestinal crypts from being injured by NQD. 相似文献
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肾结石的治疗,除药物排石外,传统方法有肾盂、肾窦、肾实质切开取石术及体外冲击波碎石术.微创经皮肾镜取石术(PCNL)具有安全、有效、创伤小,患者恢复快等优点,我科2004年12月至今采用PCNL共治愈肾结石患者33例,现将护理体会报道如下. 相似文献
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小白鼠口服抗疟药复方硝喹,ED_(50)为0.18±0.01mg/kg,与已知几种抗疟药的比,疗效最高,化疗指数最大(1911)。狗服复方硝喹对肾上腺皮质的毒性反应与服单方相仿,但血中高铁血红蛋白含量则服复方硝喹后有明显升高。服较大的中毒剂量(50mg/kg/日×3)时同时肌注叶酸或甲酰四氢叶酸钙可明显降低狗的死亡率和腹泻发生率,病理组织学检查,小肠病变明显减轻,粘膜上皮杯状细胞显著增多。提示用叶酸或甲酰四氢叶酸钙后能保护复方硝喹对小肠的破坏,因而会大大减轻其临床毒性反应。 相似文献
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先天性尿道下裂是由于胚胎期胎儿皋酮缺乏或其作用不足等原因致尿道沟由近向远端闭合演化过程停顿而形成。发病率占新生男婴的千分之三到五,由于尿道畸形而影响排尿和生殖功能,手术是治疗的唯一方法。我科2002年2月至2004年8月,共为38例先天性尿道下裂患儿实施畸形矫正 尿道成形术,取得满意效果,现将护理体会报告如下。 相似文献