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.     

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.     

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.     

先天性僵硬型马蹄内翻足的治疗策略

目的探讨先天性僵硬型马蹄内翻足治疗方案的设计对远期足外形与功能的意义。方法102例166足先天性僵硬型马蹄内翻足患儿首次就诊住院进行正规康复治疗，6月龄时根据距跟角（T-CA）、跟骨-第一跖骨角（C-M1A）、第一跖骨-内踝距离（M1—ML）的改善程度采取不同手术方式（跟腱延长术，改良Turco术，胫前肌外置术），分析不同治疗方法临床疗效、距骨大小形态改变及其与预后的关系。结果①单纯康复治疗优良率85．7％，距骨畸变率11．4％；②治疗结束后1年，改良Turco术临床优良率90．0％，跟腱延长术为78．1％（P〈0．01）；而跟腱延长术疗效维持较差，下降12个百分点（P〈0．01）；改良Turco术距骨畸变率20．0％，跟腱延长术为18．8％（P〉0．05）；胫前肌外移术M1-ML均值从29．9mm提高至35．3n皿，而距骨畸变率21．1％，与改良Turco术比较，P〉0．05；距骨畸变率与临床预后密切相关（相关系数r=0．874），与手术方式无明显相关性（相关系数r〈0．05）。结论早期、持续康复治疗，改进手术方式，确切地保护跟、距、舟骨的血液循环，是重建足踝部生物力学，最大限度恢复和维持息足外形与功能的关键。 足     

先天性马蹄内翻足手术失败原因分析

目的：分析儿童先天性马蹄内翻足手术失败原因并提出预防措施。方法：对８９例１１１足先天性马蹄内翻足首次手术后畸形复发（６６例８７足）或继发外翻（２３例２４足）原因进行分析。结果：手术失败原因包括单纯软组织松解手术３４足，转移肌肉发育差９足，肌力平衡手术中解剖定位错误、转移肌腱附丽点选择不当５１足，术后石膏松脱致附丽点脱落１７足。结论：在彻底软组织松解、纠正畸形的同时，肌腱转移应选择改良良好的肌肉、正     

Circulating CXC-chemokine concentrations in a murine intestinal ischemia-reperfusion model

BACKGROUND: CXC-chemokines bearing the glutamic acid-leucine-arginine (ELR) motif (ELR+ CXC chemokines) are potent neutrophil chemoattractants and hence may play a role in mucosal injury seen with intestinal ischemia-reperfusion (I/R). METHODS: Serum concentrations of ELR+ CXC chemokines (keratinocyte-derived chemokine(KC) / CXC ligand (CXCL) 1, macrophage inflammatory protein (MIP)-2/CXCL 2/3, lipopolysaccharide-induced CXC chemokine (LIX) / CXCL5, and lungkine/CXCL15) were measured in a murine intestinal I/R model. Fifteen 4-week-old wild-type mice were studied in three subgroups: sham, ischemia (superior mesenteric artery [SMA] clamping for 60 min) and ischemia-reperfusion (SMA clamping for 60 min followed by reperfusion for 90 min). RESULTS: Concentrations of KC/CXCL1 and MIP-2/CXCL2/3 in sham-treated animals (145 +/- 123 and 107 +/- 55 pg/mL, respectively) and the ischemia subgroup (646 +/- 413 and 226 +/- 129 pg/mL) were similar, but concentrations were signifcantly higher with reperfusion (6398 +/- 2297, p < .001 and 874 +/- 790 pg/mL, p = .04). LIX/CXCL5 and lungkine/CXCL15 concentrations did not change significantly with ischemia or following I/R. KC/CXCL1 and MIP-2/CXCL2/3 concentrations correlated positively with the severity of mucosal injury and with each other, whereas a negative relationship was observed between LIX/CXCL5 concentrations and microscopic injury scores. CONCLUSIONS: Development of mucosal injury in intestinal I/R is associated with increased serum concentrations of KC/CXCL1 and MIP-2/CXCL2/3, but not with those of LIX/CXCL5 and lungkine/CXCL15.     

先天性肥厚性幽门狭窄的诊断标准与B超评分系统

目的　探讨一种可靠的先天性肥厚性幽门狭窄 (HPS)的诊断标准。方法　在本研究中测量了 30例正常婴幼儿和 77例HPS患儿的幽门管直径、长度和幽门部肌层厚度 ,通过半效数量分析法 ,得出相对应的评分数值。结果　 30例正常婴幼儿通过B超检查幽门大小 ,平均为 (11.16±1.2 9)mm ,范围 9.0～ 13.0mm ,肌层厚度为 (2 .12± 0 .31)mm ,范围 1.5～ 3.1mm ,幽门管长度 (13.9± 1.4 6 )mm ,范围 10 .0～ 16 .0mm。而 77例HPS婴幼儿B超检查如下 :幽门直径平均 (15 .7± 2 .2 3)mm ,范围 11.0～ 18.0mm ,肌层厚度平均为 (4.90± 0 .85 )mm ,范围 4 .0～ 6 .0mm ,幽门长度平均为18.9± 3.12 ,范围从 15 .0～ 2 2 .0mm。通过建立一个B超评分系统 ,评分≥ 4则为HPS ,若评分≤ 2则排除HPS ,评分 =3则需进一步检查 ,如上消化道造影 (UGI)。结论　B超是一种有效的检查手段 ,建立一个评分系统 ,对HPS的诊断起决定性作用