先天性马蹄内翻足动物模型胚胎后肢(芽)评分系统的建立

Objective Quantification of the severity of congenital clubfoot is essential for its re-search and treatment. Up to date, no scoring system is available for hind limb bud development. In this study,a scoring system was established based on a murine model Methods Sixty female Wistar rats weighing 220～250 g were randomized into the six control groups and six experimental groups. Vaginal sperm plug detection day was considered to be day 0 of gestation. Hind limb buds from fetuses of E13, 14, 15,16,17 and 18 days were removed and processed. Results Morphogenetic differentiation changes were detected in the experimental groups. According the new scoring system, clubfoot-like deformity was present in 80.9% of the experimental fetuses. We were able to quantify the extent morphogenetic diffcrentiation of the hind limb accordingly. Conclusions Congenital clubfoot deformities begin at early developmental stage and become exaggerated as the fetuses mature. The scoring system can quantify the extent of congenital clubfoot deformity and facilitate its management.     

经量化后的先天性马蹄足动物模型胚胎早期后肢芽分子病理学研究

目的 探讨肢体发育不同时段综合多基因相互作用条件下最终导致先天性马蹄内翻足(CCF)发生的原因.方法 70只大白鼠从怀孕第10天起,将维甲酸石蜡油混悬液经胃管单次注入,以建立马蹄足动物模型;应用评分系统将畸形子鼠筛选出来,光镜、电镜及分子生物学的方法检测畸形鼠后肢芽(后肢)、软骨及脊髓.结果 经评分系统矫正后的动物模型CCF发病率为61.8%.后肢芽及脊髓前角细胞均有凋亡现象,软骨发育明显延迟于对照组竟高达1.5 d,并且这种差异在孕14～17 d间表现得非常明显.结论 在胚胎早期后肢芽及脊髓前角细胞凋亡及软骨发育明显延迟与CCF发病相关.     

先天性马蹄内翻足动物模型胚胎后肢(芽)评分系统的建立

目的 建立一套稳定的评分系统,提供客观的观察指标来确认胚胎早期先天性马蹄内翻足(congenital clubfoot,CCF),进行序列胚胎研究.方法 60只Wistar大白鼠,体重220～250 g,随机分成实验组和对照组各6组.从怀孕第10天起,将维甲酸玉米油混悬液经胃管单次注入,以建立马蹄内翻足动物模型,分别在受孕第13、14、15、16、17、18天取出胎鼠的后肢芽并经过一系列处理.应用评分系统对胎鼠进行评分.结果 经评分系统得出的动物模型CCF发病率为80.9%,经评分系统矫正后的CCF发病率较既往报道高.在实验组和对照组之间的软骨分化存在显著差异.结论 应用评分系统可以有效地筛选出CCF,可以对筛选出的CCF胚胎在关键的研究时间窗口进行系列研究,有效地解决了长期困扰CCF研究难以深入的瓶颈问题.     

先天性马蹄足后肢芽及脊髓的病理和分子生物学研究

先天性马蹄内翻足（CCF）病因不清，晚期出现距骨滑车变低平或消失，最终导致患肢残疾。利用全反式维甲酸（atRA）制作的大鼠CCF动物模型与人类新生儿CCF有较好的一致性，我们从RA投入第2天起对子鼠的后肢芽进行组织病理学及分子生物学分析，观察受RA信号系统调控基因的表达，探讨在肢体发育不同时段综合多基因相互作用条件下最终导致CCF发生的原因。[第一段]     

先天性马蹄内翻足动物模型胚胎后肢(芽)评分系统的建立

Objective Quantification of the severity of congenital clubfoot is essential for its re-search and treatment. Up to date, no scoring system is available for hind limb bud development. In this study,a scoring system was established based on a murine model Methods Sixty female Wistar rats weighing 220～250 g were randomized into the six control groups and six experimental groups. Vaginal sperm plug detection day was considered to be day 0 of gestation. Hind limb buds from fetuses of E13, 14, 15,16,17 and 18 days were removed and processed. Results Morphogenetic differentiation changes were detected in the experimental groups. According the new scoring system, clubfoot-like deformity was present in 80.9% of the experimental fetuses. We were able to quantify the extent morphogenetic diffcrentiation of the hind limb accordingly. Conclusions Congenital clubfoot deformities begin at early developmental stage and become exaggerated as the fetuses mature. The scoring system can quantify the extent of congenital clubfoot deformity and facilitate its management.     

先天性马蹄内翻足动物模型胚胎后肢(芽)评分系统的建立

Objective Quantification of the severity of congenital clubfoot is essential for its re-search and treatment. Up to date, no scoring system is available for hind limb bud development. In this study,a scoring system was established based on a murine model Methods Sixty female Wistar rats weighing 220～250 g were randomized into the six control groups and six experimental groups. Vaginal sperm plug detection day was considered to be day 0 of gestation. Hind limb buds from fetuses of E13, 14, 15,16,17 and 18 days were removed and processed. Results Morphogenetic differentiation changes were detected in the experimental groups. According the new scoring system, clubfoot-like deformity was present in 80.9% of the experimental fetuses. We were able to quantify the extent morphogenetic diffcrentiation of the hind limb accordingly. Conclusions Congenital clubfoot deformities begin at early developmental stage and become exaggerated as the fetuses mature. The scoring system can quantify the extent of congenital clubfoot deformity and facilitate its management.     

先天性马蹄内翻足动物模型胚胎后肢(芽)评分系统的建立

Objective Quantification of the severity of congenital clubfoot is essential for its re-search and treatment. Up to date, no scoring system is available for hind limb bud development. In this study,a scoring system was established based on a murine model Methods Sixty female Wistar rats weighing 220～250 g were randomized into the six control groups and six experimental groups. Vaginal sperm plug detection day was considered to be day 0 of gestation. Hind limb buds from fetuses of E13, 14, 15,16,17 and 18 days were removed and processed. Results Morphogenetic differentiation changes were detected in the experimental groups. According the new scoring system, clubfoot-like deformity was present in 80.9% of the experimental fetuses. We were able to quantify the extent morphogenetic diffcrentiation of the hind limb accordingly. Conclusions Congenital clubfoot deformities begin at early developmental stage and become exaggerated as the fetuses mature. The scoring system can quantify the extent of congenital clubfoot deformity and facilitate its management.     

腰穿与腰大池引流结合鞘内注射在开颅术后颅内感染中的应用价值

目的 比较腰穿与腰大池引流结合鞘内注射治疗开颅术后颅内感染的临床疗效.方法 选择2014年1月至2106年8月期间我院神经外科收治的38例开颅术后颅内感染患者为研究对象,根据随机数字表法随机分为观察组和对照组,每组19例,分别行腰大池引流结合鞘内注射万古霉素和腰椎穿刺结合鞘内注射万古霉素治疗,比较两组患者的临床疗效.结果 两组患者治疗后的脑脊液检查结果中,颅内压、白细胞(WBC)、蛋白定量均明显降低,葡萄糖明显升高,且观察组明显优于对照组,差异均有统计学意义(P<0.05);观察组与对照组患者治愈率分别为94.74%和78.95%,差异无统计学意义(P>0.05);观察组患者的临床有效治疗时间为(5.28±2.43)d,明显短于对照组的(7.31±3.26)d,腰部疼痛发生率为15.79%,明显低于对照组的47.37%,差异均有统计学意义(P<0.05).结论 腰大池引流结合鞘内注射万古霉素治疗开颅术后颅内感染与腰穿结合鞘内注射万古霉素比较,可以减少有效治疗时间,降低疼痛等不良反应.     

先天性马蹄内翻足动物模型胚胎后肢(芽)评分系统的建立

Objective Quantification of the severity of congenital clubfoot is essential for its re-search and treatment. Up to date, no scoring system is available for hind limb bud development. In this study,a scoring system was established based on a murine model Methods Sixty female Wistar rats weighing 220～250 g were randomized into the six control groups and six experimental groups. Vaginal sperm plug detection day was considered to be day 0 of gestation. Hind limb buds from fetuses of E13, 14, 15,16,17 and 18 days were removed and processed. Results Morphogenetic differentiation changes were detected in the experimental groups. According the new scoring system, clubfoot-like deformity was present in 80.9% of the experimental fetuses. We were able to quantify the extent morphogenetic diffcrentiation of the hind limb accordingly. Conclusions Congenital clubfoot deformities begin at early developmental stage and become exaggerated as the fetuses mature. The scoring system can quantify the extent of congenital clubfoot deformity and facilitate its management.     

先天性马蹄内翻足动物模型胚胎后肢(芽)评分系统的建立

Objective Quantification of the severity of congenital clubfoot is essential for its re-search and treatment. Up to date, no scoring system is available for hind limb bud development. In this study,a scoring system was established based on a murine model Methods Sixty female Wistar rats weighing 220～250 g were randomized into the six control groups and six experimental groups. Vaginal sperm plug detection day was considered to be day 0 of gestation. Hind limb buds from fetuses of E13, 14, 15,16,17 and 18 days were removed and processed. Results Morphogenetic differentiation changes were detected in the experimental groups. According the new scoring system, clubfoot-like deformity was present in 80.9% of the experimental fetuses. We were able to quantify the extent morphogenetic diffcrentiation of the hind limb accordingly. Conclusions Congenital clubfoot deformities begin at early developmental stage and become exaggerated as the fetuses mature. The scoring system can quantify the extent of congenital clubfoot deformity and facilitate its management.