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银杏注射液防治实验性家兔脊髓空洞症的疗效评价 被引量:3

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摘要 目的 :评价银杏注射液对枕大池注入 Kaolin诱导的家兔脊髓空洞症的防治作用。方法 :30只中国白兔随机分为 3组。在静脉麻醉下 2 4只动物经皮枕大池穿刺缓慢抽出 0 .6 ml脑脊液后注入等量 2 5 % kaolin;其中 12只于当日起给予银杏注射液静注 5 ml× 7日 ,为银杏组 ;12只以等量生理盐水静注 7天 ,为盐水组 ;6只动物仅作假穿刺和假注射为假手术组以作对照。术后定期行 MRI扫描并取 2周以内灌注的部分组织标本行细胞凋亡、bcl- 2及 bax等研究。结果 :注入 Kaolin后 3~ 16天 ,盐水组有 5只银杏组有 1只死亡。盐水组存活的 7只动物有 2只在 4周、 3只在 6周、 1只在 8周时出现上颈髓或颈胸段空洞 ;银杏组存活的 11只动物中只有 1只在 8周时出现上颈髓空洞。组织切片对比发现同一时间内银杏组组织水肿及神经元变性、坏死等均较盐水组为轻。盐水组神经元凋亡率、Bax反应阳性细胞率高于银杏组 ,而 Bcl- 2反应阳性细胞率低于银杏组。假手术组动物 MRI及组织学观察正常。结论 :银杏注射液可改善Kaolin性肉芽肿引起的上颈髓缺血水肿 。
出处 《脑与神经疾病杂志》 2002年第2期90-92,共3页 Journal of Brain and Nervous Diseases
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