骨髓间充质干细胞关节腔注射治疗胶原诱导性关节炎的实验研究

目的 观察骨髓间充质干细胞(BMSCs)关节腔注射治疗胶原诱导性关节炎(CIA)的疗效.方法 体外扩增原代间充质干细胞至P2代.大鼠胶原二次免疫后第7天,将等量0.9％氯化钠注射液及P2代细胞分别注射至CIA不同侧足踝关节处.2,4,8,12周后观测关节炎指数和足爪关节X线分析及指数评估;12周处死动物进行组织学观察.采用配对t检验进行统计学分析.结果 在不同观察时间点间充质干细胞治疗组与对照组的关节炎指数为:(第2周)3.18±0.62与3.84±0.35,(第4周)3.45±0.28与4.06±0.38,(第8周)3.86:±0.23与6.75±0.36,(第12周)4.23±0.43与7.86±0.66;X线放射学指数为:(第2周)2.04:±0.21与2.72:±.0.15,(第4周)2.52±0.47与4.06±0.38,(第8周)3.56±0.29与4.35±0.36,(第12周)3.73±0.43与4.86±0.62;组织学评分为:(第12周)2.34±0.22与3.52±0.55.结论 骨髓间充质干细胞关节腔注射治疗可以抑制CIA大鼠的病情发展,有望成为一种新的临床治疗手段.     

267例细菌性肝脓肿患者的临床表现及病原学分析

目的分析细菌性肝脓肿患者的临床表现、病原学分布及其耐药性。方法回顾性分析267例细菌性肝脓肿患者的临床表现、病原学分布和耐药性。结果267例细菌性肝脓肿患者的主要临床表现为发热(83.89%)、畏寒或寒战(59.18%)、右上腹痛(58.05%)。外周血液白细胞增多占58.80%,门冬氨酸氨基转移酶升高占60.04%,碱性磷酸酶升高占35.96%。所获116株细菌中肺炎克雷伯菌、大肠埃希菌和金黄色葡萄球菌分别占31.03%、27.59%和8.62%。阿米卡星、头孢菌素类和泰能对革兰阴性菌敏感性较好,喹诺酮类和万古霉素对革兰阳性菌敏感性较好。结论肺炎克雷伯菌、大肠埃希菌、金黄色葡萄球菌为细菌性肝脓肿的优势菌,对当前常用抗生素敏感性较好。     

经纤维支气管镜行肺泡灌洗辅助治疗支气管扩张的护理

对65例支气管扩张患者在急性感染与咯血控制后经纤维支气管镜行肺泡灌洗治疗．随访2～5年。结果显效42例，有效16例，无效7例。提示经纤维支气管镜行肺泡灌洗辅助治疗支气管扩张疗效显著，安全，患者易接受；做好常规准备工作，密切配合医生进行肺泡灌洗．严密观察病情变化，加强体位护理、饮食护理及健康教育，可保证治疗效果。     

Consideration of Helicobacter pylori infection in childhood: Immune response,endoscopic and morphological findings

Seventy-five children (aged 9–14 years) infected with Helicobacter pylori were studied endoscopically and morphologically for the signs of infection and immune response by ELISA technique (total IgE and specific IgG against H. pylori); a control group of 36 children (not infected with H. pylori) were studied simultaneously. Helicobacter pylori positive children examined endoscopically revealed a number of mucous membrane changes including erythema, erosions, lymphoid nodular hyperplasia and ulcers. Gastritis was confirmed by histology in 58 children; 6% were termed ‘active’, others were ‘non-active’. When studying the concentrations of anti-H. pylori IgG in children from the control group they were considered to be seronegative but in children infected with H. pylori a considerable increase was noted. An evaluation of the interaction between anti-H. pylori IgG titers and age, endoscopic signs and histology was carried out. Suppositions were made about the presence of links between these characteristics. Children with H. pylori infection showed a considerable increase of total IgE titers in comparison with the control group. The role of IgG and IgE in the development of chronic gastroduodenal diseases associated with H. pylori is discussed.     

Unusual suppurative complications of brucellosis in children

Three cases with suppurative complications of Brucella melitensis infection are presented, demonstrating localized involvement of the brain, bones and lungs, respectivcly, and the lesions were well defined on radiographic examination. The diagnosis was made on the basis of significant Brucella titres and positive blood culture. Awarness of such complications and performance of the appropriate serological and bacteriological studies will establish the diagnosis and will also differentiate this discase from other infections, especially tuberculosis.     

Stability of 11S globulin from Vicia faba seeds

Heat denaturation of 11S globulin, a dodecameric globular protein isolated from Vicia faba seeds was studied using scanning microcalorimetry at pH 7.6 and NaCl concentrations from 0 to 1 M. The specific enthalpy of denaturation was shown to be a linear function of temperature. The ratio of the calorimetric enthalpy to the effective one (Van't-Hoff's) per protomer of 11 S globulin was 0.9 ± 0.06. It is concluded that at first approximation 11 S globulin protomers denaturated independently in conformity with the two-state model. The plotted temperature-dependent specific free energy of 11 S globulin denaturation at different NaCl concentrations demonstrated that an increase in the salt content brought about the rise in protein stability. The maximum 11 S globulin stability is reached at about 300°K. The molar free energy of denaturation at 300°K in 1 M NaCl is 918 kJ/mol.     

EVALUATION OF MUSCULAR RELAXATION IN CONTROLLED RESPIRATION

A study of relaxation was made in 275 patients undergoing cardiacsurgery (mainly mitral valvotomy) under light narcosis withcontrolled ventilation. Suxamethonium was used for intubationand was followed by tubocurarine or gallamine for the operation.On the basis of data obtained from stimulation of the motornerves to muscles, electromyography, and the clinical picture,it is suggested that it is possible to subdivide the processof relaxation into stages. These stages would facilitate thecontrol of relaxation during surgery and in the immediate postoperativeperiod. ^* This paper was read at the All-Union Symposium on "The Useof Relaxants" on January 25, 1963.     

不同标准空腹血糖受损人群葡萄糖负荷后血糖代谢特征

目的：分析两种标准空腹血糖受损人群葡萄糖负荷后血糖代谢特点。方法：对3828名40岁以上居民进行流行病学调查,对空腹血糖≥5.6mmol/L者行75g葡萄糖负荷试验,据不同空腹血糖受损诊断标准分析负荷后2h血糖代谢情况。结果：在以空腹血糖为6.1mmol/L为切点诊断的245例空腹血糖受损（IFG）人群中,糖耐量减低（IGT）的患病率为41.22%,女性（25.71%）高于男性（15.51%）;2型糖尿病（T2DM）患病率为20.82%,女性（11.84%）高于男性（8.98%）。在以空腹血糖为5.6mmol/L为切点诊断的627例空腹血糖受损人群中,糖耐量减低的患病率为37.00%,女性（23.76%）高于男性（13.23%）;2型糖尿病患病率为13.88%,女性（9.52%）高于男性（4.63%）。结论：以空腹血糖为5.6mmol/L和6.1mmol/L为切点诊断的空腹血糖受损人群葡萄糖负荷后2h血糖代谢异常率分别为50.88%和62.04%,患病率女性均高于男性。     

新生儿泌尿系感染66例临床分析

目的总结新生儿泌尿系感染的临床特点及诊治经过。方法回顾分析66例新生儿泌尿系感染患儿的临床资料。结果本组患儿最常见的临床表现为发热、皮肤黄染和咳嗽、气促、喉中痰响等呼吸系统症状及腹胀、吐奶、腹泻等消化系统症状。最常见的基础疾病为肺炎、高胆红素血症、败血症。泌尿系彩超阳性率为26．7％。尿培养阳性率为56．9％,居于前三位的病原菌为屎肠球菌、大肠埃希菌、肺炎克雷伯菌。屎肠球菌对万古霉素、利奈唑烷敏感．对青霉素、红霉素、氯洁霉素、喹诺酮类抗生素耐药。大肠埃希菌及肺炎克雷伯菌对亚胺培南敏感。对普通青霉素及大部分头孢类抗生素耐药率高。结论新生儿泌尿系感染临床表现不典型,多以全身症状为主．因此应加强尿常规筛查．必要时行尿培养及肾脏彩超检查。屎肠球菌及大肠埃希菌为其最常见的病原菌。临床医生应参照尿培养药敏试验选择敏感抗生素治疗。     

动态监测脐动脉血流及胎心监护在高危孕妇的胎儿窘迫诊断中的应用

目的探讨动态监测胎儿脐动脉血流及胎心监护在高危孕妇胎儿窘迫诊断中的应用价值。方法对2010年1月～2011年12月在我院产科住院的300例高危妊娠孕妇行脐动脉血流s／D值测定及胎心监护监测。并比较分娩后胎儿宫内窘迫发生率、羊水情况、新生儿Apgar评分及脐带绕颈率。结果S／D值≥3、胎心监护异常时,产时（Ⅳ组）在羊水过少发生率（66．7％）、胎儿窘迫发生率（43_3％）、新生儿Apgar评分（48．3％）均明显高于胎心监护及S／D比值正常的孕妇（I组）（47．2％、27_3％、27．3％）。而脐带绕颈在剖宫产发生产时胎儿窘迫也显著高;于胎心监护及S／D比值正常组（I组）（35．0％vs18．2％、66．7％vs44．9％）。Ⅱ组羊水过少发生率（52．0％）、胎儿窘迫发生率（32．O％）、羊水污染发生率（Ⅱ～Ⅲ°）（28．0％）及剖宫产率（60．0％）均高于I组（47．2％、27．3％、18．8％、44．9％）,但差异无统计学意义。Ⅱ组脐带绕颈率明显低于I组（4．0％vs18．2％）,差异有统计学意义,而Ⅱ组剖宫产率（60．0％）高于Ⅲ组（51．3％）,差异无统计学意义。而脐动脉S／D值与胎心监护联合应用在诊断胎儿窘迫的灵敏度、特异度、阳性率与阴性率均较脐动脉S／D值或者胎心监护单独使用有明显升高。结论胎心监护与脐动脉血流S／D值联用能明显提高胎儿窘迫的判断率,对于改善围产儿预后具有积极的临床意义。