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孕酮对大鼠脑损伤后海马CA_1区神经细胞凋亡及学习记忆功能的影响 被引量:2
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作者 司道文 张廷才 张宇新 《陕西医学杂志》 CAS 北大核心 2007年第9期1128-1130,共3页
目的:探讨孕酮对大鼠创伤性脑损伤后海马CA1区细胞凋亡及学习记忆功能的影响。方法:将雄性SD大鼠随机分为假手术组,损伤组,孕酮治疗组。按照改进的Feeney自由落体损伤装置制作大鼠脑损伤模型。利用TUNEL法观察大鼠海马CA1区细胞凋亡,Mor... 目的:探讨孕酮对大鼠创伤性脑损伤后海马CA1区细胞凋亡及学习记忆功能的影响。方法:将雄性SD大鼠随机分为假手术组,损伤组,孕酮治疗组。按照改进的Feeney自由落体损伤装置制作大鼠脑损伤模型。利用TUNEL法观察大鼠海马CA1区细胞凋亡,Morris水迷宫测试大鼠学习记忆功能。结果:孕酮治疗组各时间点凋亡细胞数较损伤组减少,脑损伤后24h、48h和72h凋亡细胞数治疗组和损伤组之间存在显著性差异(P<0.05)。孕酮治疗组大鼠学习记忆能力潜伏期较损伤组缩短。结论:孕酮可以减轻脑损伤后海马神经细胞凋亡,促进大鼠学习记忆功能的恢复。 展开更多
关键词 脑损伤/药物疗法 孕酮/治疗应用 细胞凋亡 记忆 海马 动物 实验 大鼠
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卵巢摘除及补充雌激素对小鼠骨折愈合中钙沉积的影响 被引量:4
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作者 赵永强 王宏跃 +2 位作者 李甲振 陈凤苞 刘志成 《中医正骨》 2000年第5期3-4,共2页
为研究雌激素对卵巢摘除后已发生显著骨丢失的 balb/c系小鼠股骨骨折愈合的影响 ,将 144只 balb/c小鼠随机分为假手术组 (SO组 )、卵巢摘除组 (OVX组 )、补充低剂量雌激素组 (E1 组 )、补充高剂量雌激素组 (E2 组 )。小鼠于折骨后 5天... 为研究雌激素对卵巢摘除后已发生显著骨丢失的 balb/c系小鼠股骨骨折愈合的影响 ,将 144只 balb/c小鼠随机分为假手术组 (SO组 )、卵巢摘除组 (OVX组 )、补充低剂量雌激素组 (E1 组 )、补充高剂量雌激素组 (E2 组 )。小鼠于折骨后 5天、10天、15天、2 0天、30天处死 ,测定骨痂中的钙盐沉积率。结果 SO组、OVX组和 E1 组 ,骨痂中的钙盐沉积率在折骨后 15天达峰值 ,OVX组钙盐沉积峰值显著低于 SO组和 E1 组 (P<0 .0 5 ) ,后二者之间无显著差异。在 E2 组 ,骨痂中的钙盐沉积率峰值推迟至折骨后 2 0天方出现。表明卵巢摘除的的低雌激素状态和补充超生理剂量的雌激素均对小鼠骨折愈合不利 。 展开更多
关键词 骨折愈合 药物作用 雌激素替代疗法 卵巢摘除
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雌激素对小鼠参考记忆的影响研究
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作者 印彤 朱晓晖 王军 《陕西医学杂志》 CAS 北大核心 2008年第9期1138-1139,1237,共3页
目的:探讨雌激素去除(OVX)与雌激素替代(ER)对小鼠参考记忆的影响。方法:将3月龄的雌性C57BL/6J小鼠40只随机分为对照组和卵巢切除组,卵巢切除组又分为不给雌激素、给雌激素7d、给雌激素40d的3个亚组,每组10只。小鼠摘除卵巢后饲养至7... 目的:探讨雌激素去除(OVX)与雌激素替代(ER)对小鼠参考记忆的影响。方法:将3月龄的雌性C57BL/6J小鼠40只随机分为对照组和卵巢切除组,卵巢切除组又分为不给雌激素、给雌激素7d、给雌激素40d的3个亚组,每组10只。小鼠摘除卵巢后饲养至7月龄进行8臂迷宫实验,将给雌激素组小鼠于迷宫测试前7d和40d分别皮下埋植控释雌激素(17β-雌二醇)药丸(0.18mg/丸),测试各组小鼠在8臂迷宫的参考记忆错误率。结果:卵巢切除组不给雌激素亚组其参考记忆错误率明显高于对照组(P<0.05);给雌激素7d和40d亚组其参考记忆错误率明显下降(P<0.05,P<0.01),而且长期给雌激素亚组其参考记忆错误率明显少于短期给雌激素亚组。对照组和给雌激素组其错误率无显著性差异(P>0.05)。结论:雌激素去除明显损害了小鼠的空间参考记忆,而雌激素替代可以改善小鼠的记忆能力,并且长期的替代改善效果更明显。 展开更多
关键词 记忆/药物作用 雌激素/治疗应用 动物 实验 小鼠
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Treatment of rotaviral gastroenteritis with Qiwei Baizhu powder 被引量:7
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作者 Shuang-Teng He~1 Fei-Zhou He~2 Can-Rong Wu~3 Shun-Xiang Li~2 Wei-Xin Liu~4 Yong-Fang Yang~2 Shi-Sheng Jiang~2 Gang He~1 1 Institute of Combined Traditional Chinese and Western Medicine,Xiangya Hospital,Hunan Medical University,Changsha,410008,China2 Hunan Province Academy of Traditional Chinese Medicine,Changsha 410006,China3 Department of Microbiology,Hunan College of Traditional Chinese Medicine,Changsha 410007,China4 Department of Pediatrics,The Second Hospital of Shuangfeng County,Hunan Province,411700,China 《World Journal of Gastroenterology》 SCIE CAS CSCD 2001年第5期735-740,共6页
AIM To observe the effects of Qiwei Baizhu Powder ( QWBZP) on rotaviral gastroenteritis in children and in animal models.``METHODS Enrolled patients were divided into two groups, and one group was treated with oral re... AIM To observe the effects of Qiwei Baizhu Powder ( QWBZP) on rotaviral gastroenteritis in children and in animal models.``METHODS Enrolled patients were divided into two groups, and one group was treated with oral rehydration solution(ORS) and the other treated with oral liquid of QWBZP. Neonate mice were orally infected with 50 μLrotavirus suspension (4 × l0s PFU/mL) and treated with ORS or oral liquid of QWBZP, respectively.``RESULTS Eighty-three cases of rotaviral gastroenteritis treated with QWBZP revealed a better efficacy than that treated with ORS (x2 - 10.8T, P<0.05). The contents of sodium and glucose as well as number of patients with positive human rotavirus antigen in stool in QWBZP group were all less than that in ORS group. In animal models,QWBZP was found effective in treating rotavirus gastroenteritis in neonate NIH mice, as compared with control groups. In QWBZP group, the mortality of infected mice was decreased by 73.3%, the body weight of infected mice was increased, the contents of sodium and glucose as well as number of mice with positive rotavirus antigen in feces were significantly reduced, and the pathological changes such as damage of small intestinal mucosa and villi were also obviously alleviated.``CONCLUSION QWBZP has effects on improving the absorptive function of small intestine, shortening the duration of diarrhea and rotavirus shedding from stool and alleviating the pathological changes of small intestine induced by rotavirus. 展开更多
关键词 gastroenteritis/drug therapy ROTAVIRUS infectionsdrug therapy: Qiwei baizhu powder/therapeutic use disease models animal
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