适形切除保肛术与经括约肌间切除术治疗低位直肠癌的临床疗效

目的:探讨适形切除保肛术（CSPO）与经括约肌间切除术（ISR）治疗低位直肠癌的临床疗效。方法:采用回顾性队列研究方法。收集2011年8月至2020年4月2家医学中心收治的183例（海军军医大学附属长海医院117例、复旦大学附属华山医院66例）低位直肠癌病人的临床病理资料;男110例,女73例;年龄为（57±11）岁。...     

不同人工真皮支架在修复Ⅲ度烧伤创面中创面收缩和细胞凋亡差异的实验研究

目的 探讨不同真皮支架血管化对Ⅲ度烧伤创而修复中创面收缩和细胞凋亡影响的差异.方法 将胶原-磺化羧甲基壳聚糖、胶原-壳聚糖及脱细胞基质三种真皮支架分别移植于猪Ⅲ度烧伤清创后创面,观察植入创面的修复情况,并通过免疫组化、末端脱氧核苷酸介导的生物索化的脱氧尿嘧啶DNA切口末端标记等方法对不同时间小同支架创面中表达α-平滑肌肌动蛋白(α-SMA)的血管和肌成纤维细胞数量及细胞凋亡情况进行检测.结果 植入不同真皮支架的创面与无支架植入的肉芽创面不同.支架植入创面1～3周α-SMA表达阳性的血管数持续增加,支架植入2周加植表皮2周后创面血管数减少,不同时间点以胶原-磺化羧甲基壳聚糖真皮支架植入创面最多,无支架植入创面最少.α-SMA表达阳性的肌成纤维细胞以胶原-磺化羧甲基壳聚糖真皮支架植入创面最少且表达高峰为2周,其他创面表达高峰为3周,以无支架植入创面最多.不同支架植入后2～4周,创面内细胞凋亡持续大幅增多;而无支架植入创面中,3～4周才开始增加;细胞凋亡以胶原-磺化羧甲基壳聚糖真皮支架创面最多,无支架创面最少.结论胶原-磺化羧甲基壳聚糖真皮支架可增强修复细胞的迁移,获得良好的血管化,较好较快地修复皮肤全层烧伤缺损创面.     

类风湿关节炎患者静脉血栓栓塞发生率的Meta分析

目的：系统分析和评价类风湿关节炎患者发生静脉血栓栓塞的风险程度。方法电子检索已发表的国内外关于类风湿关节炎患者发生静脉血栓栓塞的相关文献,采用RevM an5.1软件进行数据分析,对于无法合并的数据采用描述性分析。结果共纳入10篇文献,对静脉血栓栓塞发生率、深静脉血栓发生率、肺动脉血栓栓塞发生率3个指标进行Meta分析,各指标 RR值及95％ CI分别为：2.00（1.71,2.33）、2.31（1.84,2.90）、2.25（2.23,2.28）。结论类风湿关节炎患者发生静脉血栓栓塞的风险程度高于非类风湿关节炎患者。     

腹水中高荧光强度细胞的检测分析

目的 探讨腹水中高荧光强度细胞(HF-BF)临床应用价值.方法 应用XT-4000i全血细胞分析仪体液模式分析760例肝硬化和肝癌患者腹水细胞中HF-BF绝对值和比率,分别比较其在肝硬化、肝癌组中的情况,以及不同的Child-Pugh分级、肝癌临床分期以及腹腔感染对结果的影响.结果 肝癌组和肝硬化组的HF-BF绝对值分别为0.031(0.011,0.082)×109/L、0.026(0.011,0.052)×109/L,比率分别为8.6.(2.90,25.70)％、6.90(3.00,11.90)％,肝癌组HF-BF绝对值和比率均明显高于肝硬化组,差异均有统计学意义(P=0.000,P=0.022).且不同Child-Pugh分级的肝癌患者HF-BF绝对值和比率均有统计学意义(P=0.000).而不同Child-Pugh分级的肝硬化患者中仅HF-BF比率的差异有统计学意义(P=0.014).肝硬化腹水合并腹腔感染患者的HF-BF的比率和绝对值显著高于无腹腔感染患者(P=0.003,P=0.009),肝癌组合并腹腔感染患者的HF-BF的比率显著高于无腹腔感染患者(P=0.040).肝硬化合并腹腔感染患者和肝癌组合并腹腔感染患者腹水的HF-BF的比率和绝对值间差异无统计学意义(P＞0.05).不同临床分期的肝癌患者HF-BF的比率和绝对值的差异无统计学意义(P＞0.05).结论 通过体液模式HF-BF的分析,有助于对腹水良恶性的判断,同时提示患者是否有腹腔感染,其中HF-BF的比率意义更明显.     

肝病患者合并希瓦菌感染的临床分析

目的 总结肝病患者希瓦菌感染的临床因素及耐药情况.方法 回顾性分析2009年1月至2015年12月无菌部位希瓦菌培养阳性的肝病患者的临床资料,并采用表型实验和质谱仪对希瓦菌进行再鉴定.结果 共收集7例非重复希瓦菌感染者的资料,其中希瓦菌所致血流感染2例,腹膜炎4例,胆道感染1例.经鉴定,4株为海藻希瓦菌,3株为腐败希瓦菌.在临床治疗过程中,希瓦菌易对碳青霉烯类药物不敏感,而对左氧氟沙星和阿米卡星敏感.结论 希瓦菌可引起重症肝病患者多个无菌部位的感染,左氧氟沙星或阿米卡星可取得较好的抗菌效果.     

Safety and efficacy of mezlocillin: a single-drug therapy for penetrating abdominal trauma

This study was done to determine if a single drug, mezlocillin (Mezlo), is as safe and as effective as combined clindamycin (Clind) and gentamicin (Gent) in the treatment of penetrating abdominal wounds. One hundred seventy-three patients received either Mezlo or Clind/Gent combined therapy as assigned by computer-generated randomization. Of these, 147 patients were evaluable. Of 73 patients treated with Clind/Gent the mean duration of hospital stay was 8.9 +/- 4.0 days. Infectious complications developed in 18 patients of whom five failed to respond promptly, but only one required change in therapy. Of 74 patients treated with Mezlo, the mean duration of hospital stay was 9.1 +/- 5.0 days. Infectious complications occurred in 17, in whom four patients failed to eliminate their infections, and two needed changes in antibiotic therapy. None of the patients in either antibiotic group failed because of Enterococcus or Pseudomonas infections. There were no deaths. Twelve isolates of Bacteroides were found in peritoneal fluid cultures and all these patients had colon injuries. The overall therapeutic response was excellent to good in 94% on Clind/Gent and 93% on Mezlo. Azotemia developed in one patient on Clind/Genet and one on Mezlo but no other adverse reactions occurred. The differences shown between the two groups were not statistically significant. We conclude that a single drug mezlocillin is as safe and as effective in the treatment of abdominal trauma as combined clindamycin and gentamicin.     

Does glutathione-S-transferase dethiolate lens protein-thiol mixed disulfides?-A comparative study with thioltransferase.

Protein S-thiolation is a process in which under oxidative stress, vulnerable sulfhydryl groups of proteins are conjugated to non-protein thiols such as glutathione (GSH) or cysteine resulting in the formation of protein-thiol mixed disulfides, protein-S-S-glutathione (PSSG) and protein-S-S-cysteine (PSSC). This process spontaneously disrupts the redox homeostasis of the cells, which in turn leads to functional disturbances in the respective tissue. In the ocular lens, such modification of proteins may trigger a cascade of events starting with the alteration of protein conformation, protein/enzyme deactivation, protein-S-S-protein aggregation and eventually lens opacification or cataract. Generally, the first line of defense system in the cells protects the lens proteins against such damage. Recent studies in our laboratory have shown that in addition to this defense system, lens cells also possess a well developed system to repair the oxidative damage to the lens proteins. We have identified this repair system as thioltransferase (TTase) and have proved that TTase by its dethiolase activity reverses the protein S-thiolation process which returns the oxidatively damaged lens proteins/enzymes to their original reduced state and restores their physiological functions. We investigated if this repair mechanism was mediated by enzymes other than TTase. We studied glutathione S-transferase (GST) and report here for the first time the cloning, high level expression, and purification of human lens mu and pi isoforms of GST. A comparative study of recombinant human lens TTase and GST (mu and pi) on their dethiolating abilities using lens crystallin-thiol mixed disulfides showed that the lens TTase is 60-70% more efficient in the dethiolation/repair process than GST. When TTase and GST were tested in conjunction for the dethiolation of thiol mixed disulfides, there was no significant enhancement of dethiolase activity. These findings suggest that TTase by itself is an efficient enzyme in the dethiolation/repair process and hence can be considered a crucial system to counteract oxidative stress in the lens.     

ELBOW JOINT MEDIAL COLLATERAL LIGAMENT INJURY A PRELIMINARY REPORT

The medial collateral Iigament injury of elbow joint may be produced by valgus stre4ss with the arm in extension and abduction or in extension, abduction and slight backward incli- nation The injury presents definite clinical fea- tures If injury is severe, the abnormal passive vajgus movement of elbow joint is at least 30 degrees. Operative technic for repairing the ruptured medial collateral ligament is intro- duced. From the operative findings of traumatic pathologic changes, the rapid recovery of normal function in 10 cases after operation and simp- licity of the operative technic, surgical repair is recommended in severe injury of the medial collateral ligament.     

玻璃体内注射曲安奈德联合玻璃体切割术治疗玻璃体积血

目的探讨玻璃体内注射曲安奈德(TA)联合玻璃体切割术治疗玻璃体积血的临床应用。方法对因玻璃体积血住院手术的患者192例进行回顾性分析,比较玻璃体内注射TA联合玻璃体切割术和单纯行玻璃体切割术治疗前和治疗后ld、10d、1个月、3个月时患者的最佳矫正视力、眼压、眼内炎症反应和眼底改变。结果TA注射组在1个月、3个月最佳矫正视力高于单纯手术组,术后眼内炎症反应较单纯手术组降低,差异有统计学意义。结论与单纯玻璃体切割术比较,玻璃体内注射TA联合玻璃体切割术治疗玻璃体积血能在短期内获得更高的最佳矫正视力,并减少眼内炎症反应。