絮凝剂产生菌Diaphorobacter Z-052的发酵研究

从污水处理厂活性污泥中筛选出1株有絮凝活性的细菌Z-052，经分子生物学鉴定为Di-aphorobacter属。对Z-052产絮凝剂的发酵条件进行了优化。研究结果表明，在优化培养基中，于30℃培养72h，其发酵液对4g／L高岭土悬液的絮凝活性可达93．2％。Z-052絮凝剂对活性炭、土壤、酵母等固体颗粒悬液的絮凝活性分别达到95．1％、80．4％和72．4％。     

纸夹板内收位固定与石膏外展位固定治疗Bennett骨折的随机对照试验

目的：研究比较纸夹板内收位固定与石膏外展位固定治疗Bennett骨折的疗效差异。方法：选择2005年10月至2007年4月门诊就诊的70例Bennett骨折患者，按区组随机的方法分为试验组35例（纸夹板内收位固定）和对照组35例（石膏外展位固定）进行治疗。骨折达到临床愈合拆除固定后，对患者进行为期6个月的随访观察。分别于骨折后6、8、12、16、20及24周按改良的Gabriele评分系统对其患手功能进行量化评分比较。结果：两组的优良率在8、12、16及20周时比较试验组优于对照组，差异有统计学意义（P〈0．05）；6周和24周时比较差异无统计学意义（P〉0．05）。两组在功能评分方面，8、12、16、20及24周时比较试验组高于对照组，差异有统计学意义（P〈0．05）；6周时积分差异无统计学意义（P〉0．05）。结论：在Bennett骨折的治疗中，纸夹板内收位固定与石膏外展位固定相比能明显加快患手功能的恢复，而且固定轻便、舒适，患者易于接受，可以作为一种有效的固定方法在临床推广。     

Inhibitory effects of benzoate on chiral inversion and clearance of N(G)-nitro-arginine in conscious rats.

N(G)-nitro-arginine (NNA) is known to exhibit stereoselective pharmacokinetics in which N(G)-nitro-d-arginine (d-NNA) has a faster clearance rate than N(G)-nitro-l-arginine (l-NNA) in anesthetized rats, and d-NNA undergoes unidirectional chiral inversion. It was postulated that chiral inversion of d-NNA was performed in a two-step pathway by d-amino acid oxidase (DAAO) followed by an unidentified transaminase. Such chiral inversion contributes (at least partially) to the pharmacokinetic stereoselectivity of NNA. This study used the selective inhibitor of DAAO, sodium benzoate, to test the above hypothesis. An i.v. bolus injection of d-NNA (32 mg/kg) and l-NNA (16 mg/kg) in conscious rats exhibited biphasic disposition with different pharmacokinetic parameters in a stereospecific manner (approximately 5-10-fold differences). Unidirectional chiral inversion of d-NNA but not l-NNA was found from these animals. In addition to its similar inhibitory effects on the d-NNA conversion and DAAO activity in kidney homogenates, sodium benzoate completely blocked chiral inversion of d-NNA and led to a smaller stereospecific difference, reflected by a nearly 50% reduction of d-NNA clearance and a 2-fold increase in t(1/2) and area under the curve of d-NNA in benzoate-pretreated rats. The results suggest that DAAO plays an essential role in chiral inversion of d-NNA and chiral inversion contributes mostly to the pharmacokinetic stereospecificity of NNA.     

泰素蒂加顺铂治疗进展期NSCLC的临床研究

目的观察泰素蒂加顺铂方案治疗进展期非小细胞肺癌的临床疗效、毒副作用。方法收集可评价疗效的进展期非小细胞肺癌50例,以泰素蒂加顺铂方案进行化疗,泰素蒂75 mg/m2静脉滴注,第1天;顺铂25 mg/m2～30 mg/m2静脉滴注,第2天～第5天,每3周为一个周期,2～3周期后评价疗效和毒副反应并随访。结果50例患者中,总有效率为50.0 %,其中初治病例为53.1 %,复治病例为44.4 %,初复治病例间差异无显著性(P >0.05)。中位缓解期为5个月。中位生存期为9.5个月,1年生存率为61.0 %。毒副反应主要为骨髓抑制,白细胞下降达Ⅲ度、Ⅳ度者52.0 %,血小板下降达Ⅲ度、Ⅳ度者为14.0 %。血红蛋白下降不严重。其他毒副反应还有脱发、过敏反应、水钠潴留、静脉炎、末梢神经炎、口腔炎、腹泻等,但发生率均较低。结论泰素蒂加顺铂方案治疗进展期非小细胞肺癌,特别是复发病例,临床疗效比较满意,毒副反应能够耐受。辅以G蛳CSF可防治重度的骨髓抑制,有较好的临床应用价值。     

The Role of Alcohol-dependent Self-statements on Drinking Behaviour in a Public Bar

Recent literature suggests that cognitions play a role in drinking behaviour. However, disagreement exists regarding which type of cognition is associated with drinking. This study tested the prediction of a positive relationship between alcohol-dependent self-statements and alcohol consumption in a public bar. Ten heavy, 10 light, and 10 non-drinkers were administered the modified Alcohol Self-statements Questionnaire which contains sets of alcohol-dependent and alcohol non-dependent self-statements as well as factual and emotive self-statements. Their self-talk during drinking zvas also tape-recorded and analysed. Subjects were tested half an hour before, and immediately before the commencement of drinking, and at 10-minute intervals for the first half-hour of a normal drinking session in a public bar. Each session lasted approximately one hour. The results revealed that heavy drinkers showed more alcohol-dependent self-statements than light drinkers who in turn showed significantly more alcohol-dependent self-statements than non-drinkers. No significant differences between the groups were found on the factual or emotive self-statements. Alcohol consumption during the testing period was significantly related to alcohol-dependent self-statements. The result of findings suggest (i) that alcohol-related cognitions are associated with drinking behaviour and are relatively stable during drinking sessions, and (H) that there is a need for greater specificity in the definition of cognition in relation to a problem behaviour, in this case drinking behaviour.     

原发性软骨肉瘤CT诊断2例

软骨肉瘤的X线诊断已有较多研究,但软骨肉瘤的CT诊断较少研究,为此,提供经穿刺活检病理证实的软骨肉瘤2例,以提高对软骨肉瘤的CT诊断水平。病例1男,52岁。左肩关节疼痛、活动受限10年余,加重半年。查体:左肩关节活动受限、僵直,不能抬举。实验室检查:碱性磷酸酶增高。CT表现:左肱骨、干骺端骨质破坏,病变上下连续约6·0cm,中心呈大囊状,周围呈小囊状,破坏区中见1·5cm×1·5cm的不规则高密度灶,肱骨外侧骨皮质不连续,向周围软组织侵犯,形成软组织肿块,肿块内钙化灶呈斑块状。无骨膜反应,肩关节间隙可,关节面未见侵犯(图1)。CT诊断:①左…     

应用胫前肌瓣修复胫骨骨髓炎合并软组织缺损

自1999年1月-2005年3月,应用胫前肌瓣修复胫骨骨髓炎合并软组织缺损13例,同时辅以中药治疗,获得较满意的效果,现报告如下。1临床资料本组13例,男9例,女4例;年龄18⁶7岁,平均32岁。致伤原因:车祸伤6例,挤压伤4例,烧伤1例,坠落伤2例。胫骨上1/3段1例,中1/3段2例,下1/3段5例,中下2/3段5例。病程12d³0个月,外露骨有干燥、硬化、发白、变黑,周围有肉芽、瘢痕组织、脓性分泌物等。外露骨纵形长0·6⁸·0cm,皮肤缺损面积最大为4cm×10cm。2治疗方法2·1手术方法在硬膜外麻醉下,股部上止血带,术区常规消毒。首先切除溃疡及外露胫骨周围瘢痕,清除髓腔内分泌物及     

组织扩张术皮肤胶原的代谢改变

目的：研究常规扩张（ＩＴＥ）和持续快速扩张（ＣＴＥ）对皮肤胶原代谢的影响。方法用白色小家猪制作组织扩张术动物模型，用Ｇｏｒｄｅｌａｄｚｅ法测定血清和扩张组织的羟脯氨酸（ＨＰ）含量，藻酸盐印模材膜片法测量标记区面积；光镜测量真皮厚度。结果：ＩＴＥ组血清ＨＰ含量升高，０．８倍，ＣＴＥ组升高１．２倍，ＩＴＥ和ＣＴＥ组皮肤含量与正常皮肤相同，组织中ＨＰ总量均明显升高，持续扩张皮瓣组（ＣＴＥＦ）术后４ｗｋ皮     

海口地区2000年临床分离菌耐药性监测

目的：监测海口地区临床分离菌对抗菌药物的耐药状况。方法：采用VITEK微生物自动分析仪测定药敏。结果：2000年共收集临床分离菌1399株，革兰阳性球菌426株（30．5％），革兰阴性杆菌973株（69．5％），以铜绿假单胞菌、大肠杆菌、金黄色葡萄球菌、肺炎克雷伯杆菌最多见，所监测的细菌总体耐药率比国内其他地区偏高，且出现万古霉素耐药的表皮葡萄球菌和粪肠球菌。结论：海口地区的细菌耐药严重，控制细菌耐药成为当务之急。     

经内镜鼻胰管引流在重症急性胰腺炎治疗中的应用

目的 :初步总结经内镜鼻胰管引流在重症急性胰腺炎治疗中应用的疗效。　方法 :自 1998年 3月以来 ,在重症急性胰腺炎患者入院后常规非手术监测治疗的同时 ,随机床旁行经内镜置放鼻胰管引流 14例。其中明确合并胆结石 8例。观察每天胰管引流量和入院后第 5天在体温、心率、白细胞计数、血糖、血钙、动脉氧分压和血、尿淀粉酶的变化 ,并与第 1天比较 ,记录治疗结果和住院时间。　结果 :经鼻胰管引流时间为 (7.3± 4 .0 )天 ,前 5天的胰液引流量分别为每天 (2 36 .4± 176 .6 )、(2 87.1± 16 4 .7)、(2 84 .6± 2 16 .4 )、(435 .0± 35 7.8)ml和 (377.8± 2 2 3.8)ml。入院后第 1天和第 5天的体温为 (38.2± 0 .6 )和 (37.2± 0 .8)℃ (P <0 .0 1)、心率为 (10 2 .3± 17.0 )和 (82 .9± 14 .5 )次 /min(P <0 .0 1) ,白细胞计数为 (14 .6± 4 .2 )和 (10 .1± 5 .4 )× 10 9/L(P <0 .0 5 ) ,血糖为 (10 .0± 4 .9)和 (8.6± 3.3)mmol/L(P >0 .0 5 ) ,血钙为 (2 .1± 0 .2 )和 (2 .2± 0 .2 )mmol/L(P >0 .0 5 )　动脉氧分压为 (78.0± 16 .3)和 (113.0± 4 1.6 )mmHg(P <0 .0 1) ,血淀粉酶为 (6 95 .7± 4 4 5 .2 )和 (82 .6± 4 7.1)U/L(P <0 .0 1) ,尿淀粉酶为 (3174 .1± 2 5 4 2 .5 )和(2 86 .8± 2