ZTC1+1-Ⅱ澄清剂用于中药水提液澄清

目的：考察ZTC1+1-Ⅱ澄清剂用于中药水提液的澄清效果。方法：采用HPLC和分光光度法,以2,3,5,4′-四羟基-二苯乙烯-2-O-β/-D-葡萄糖(二苯乙烯苷),总多糖和固形物含量为指标,通过正交试验法,考察澄清剂用量、药液浓度、搅拌速度对澄清工艺的影响。结果：中药水提液的最佳澄清条件为：澄清剂用量5%,药液浓度(1∶10),搅拌速度100 r·min^-1。结论：与传统水提醇沉法比较,ZTC1+1-Ⅱ澄清剂澄清工艺能保留水提液中大部分指标成分,且操作简单、安全。ZTC1+1-Ⅱ澄清剂作为絮凝澄清剂可用于精制中药水提液。     

青年人出血性脑卒中110例临床分析

目的 探讨青年人出血性脑卒中的病因、临床特征、危险因素及干预。方法 对2001年1月-2006年11月我院收治14—45岁的青年出血性脑卒中110例进行回顾性分析。结果 青年人出血性脑卒中的主要病因为高血压，脑血管畸形和瘤卒中。临床以颅内高压，中风样表现及痫样发作为主要特征，病情与出血部位，出血量正相关。高血压是最主要的危险因素。结论 找出了青年人出血性卒中的主要病因和危险因素，一些危险因素是可以干预的。     

CO2气腹环境对胃癌细胞黏附与侵袭转移的影响

Objective To investigate the influence of CO2 pneumoperitoneum on the adhesive and invasive ability of gastric cancer cells based on the expression of adhesive and invasive molecules. Methods With an artificial CO2 pneumoperitoneum model in vitro, human gastric cancer cells MKN-45, SGC-7901 and MKN-28 were exposed to 3 different CO2 gradients: 9 mm Hg, 15 mm Hg and control group (0 mm Hg). The expression of E-cadherin, ICAM-1, MMP-2 and VEGF-A were measured at 2 and 4 hours exposure by using RT-PCR, CytoMatrixTM kit and ECMatrixTM kit. The pretreated gastric cancer cells were injected into abdominal cavity of nude mice(2×106 cells per mouse). Five mice in each group were sacrificed 4 weeks later to record the number of tumor nodules in abdominal cavity. The remaining mice were kept for observation of survival time. Results The expression of E-cadherin (MKN-45: from 2.26 to 2.19, SGC-7901 :from 2.16 to 2.09、MKN-28 :from 2.06 to 1.99), ICAM-1 (MKN-45 : from 2.20 to 2.28、SGC-7901: from 2.10 to 2.18、MKN-28: from 2.00 to 2.08), MMP-2 (MKN-45:from 2.05 to 2.13、SGC-7901: from 1.95 to 2.03、MKN-28: from 1.85 to 1.93) and VEGF-A(MKN-45 : from 2.10 to 2.16、SGC-7901 :from 2.00 to 2.06、MKN-28: from 1.90 to 1.96) didn't change significantly with increasing pressure and time (P>0.05). The expression of adhesive and invasive molecules didn't change significantly between the experimental groups and the control group. There was no statistical significance of tumor metastasis in abdominal cavity of nude mice(MKN-45:from 22 to 23、SGC-7901 :from 20 to 22、MKN-28:from 21 to 22) and survival time(MKN-45 :from 23 to 21、SGC-7901 :from 22 to 21、MKN-28 :from 22 to 21) among all the groups. Conclusion Under low pressure and short time of CO2 exposure, the adhesive and invasive capacity of gastric cancer cells did not change significantly hence did not increase the possibility of neoplasm metastasis.     

超声影像学在胃癌术前分期中的应用

胃癌是最常见的消化道肿瘤,在消化系统恶性肿瘤的发病中居首位.在我国,胃癌引起的年死亡人数每10万人中就有25人.如何利用现代医学影像技术对胃癌进行正确诊断以及准确的术前分期,无论对手术方案的选择抑或疾病随访和预后判断都有着重要的临床意义.     

CHADS2评分与CHA2DS2-VASC评分孰优孰劣

对非瓣膜病房颤患者的血栓栓塞危险有两个评分系统,即传统的CHADS2评分和2010年欧洲指南推荐的CHA2DS2-VASC评分,此两评分到底孰优孰劣一直存在争论,该文结合我国非瓣膜病房颤的抗凝现状、两评分提出的历背景、理念及我国目前的实际情况加以比较后认为CHADS2评更符合我国的国情。     

CO2气腹环境对胃癌细胞黏附与侵袭转移的影响

Objective To investigate the influence of CO2 pneumoperitoneum on the adhesive and invasive ability of gastric cancer cells based on the expression of adhesive and invasive molecules. Methods With an artificial CO2 pneumoperitoneum model in vitro, human gastric cancer cells MKN-45, SGC-7901 and MKN-28 were exposed to 3 different CO2 gradients: 9 mm Hg, 15 mm Hg and control group (0 mm Hg). The expression of E-cadherin, ICAM-1, MMP-2 and VEGF-A were measured at 2 and 4 hours exposure by using RT-PCR, CytoMatrixTM kit and ECMatrixTM kit. The pretreated gastric cancer cells were injected into abdominal cavity of nude mice(2×106 cells per mouse). Five mice in each group were sacrificed 4 weeks later to record the number of tumor nodules in abdominal cavity. The remaining mice were kept for observation of survival time. Results The expression of E-cadherin (MKN-45: from 2.26 to 2.19, SGC-7901 :from 2.16 to 2.09、MKN-28 :from 2.06 to 1.99), ICAM-1 (MKN-45 : from 2.20 to 2.28、SGC-7901: from 2.10 to 2.18、MKN-28: from 2.00 to 2.08), MMP-2 (MKN-45:from 2.05 to 2.13、SGC-7901: from 1.95 to 2.03、MKN-28: from 1.85 to 1.93) and VEGF-A(MKN-45 : from 2.10 to 2.16、SGC-7901 :from 2.00 to 2.06、MKN-28: from 1.90 to 1.96) didn't change significantly with increasing pressure and time (P>0.05). The expression of adhesive and invasive molecules didn't change significantly between the experimental groups and the control group. There was no statistical significance of tumor metastasis in abdominal cavity of nude mice(MKN-45:from 22 to 23、SGC-7901 :from 20 to 22、MKN-28:from 21 to 22) and survival time(MKN-45 :from 23 to 21、SGC-7901 :from 22 to 21、MKN-28 :from 22 to 21) among all the groups. Conclusion Under low pressure and short time of CO2 exposure, the adhesive and invasive capacity of gastric cancer cells did not change significantly hence did not increase the possibility of neoplasm metastasis.     

免疫强化肠内营养在老年全胃切除术后患者中的临床应用

目的探讨谷氨酰胺强化肠内营养支持对老年患者全胃切除术后营养及免疫功能的影响。方法选择我院普外科2008年2月至2010年8月期间接受全胃切除术的84例进展期胃癌老年患者作为研究对象,平均分为谷氨酰胺强化肠内营养(Gln)组、肠内营养(EN)组和肠外营养(PN)组。观察肛门排气恢复时间、术后并发症发生率、住院时间等,分别于术前、术后第2和第10天检测血清总蛋白、白蛋白、前白蛋白和转铁蛋白水平,并于术前和术后第10天检测外周血CD4和CD8 T细胞百分数、CD4/CD8以及免疫球蛋白IgM和IgG水平。结果 3组患者均按计划完成治疗。Gln组和EN组患者术后肛门排气时间和住院时间均显著短于PN组(P<0.05)。3组患者术后并发症和消化道症状发生率差异均无统计学意义(P>0.05),仅PN组1例患者在术后6d发生吻合口漏,经引流、抗感染、抑制消化液分泌等治疗后于术后54d痊愈出院。3组患者术前总蛋白、白蛋白、前白蛋白及转铁蛋白水平的差异均无统计学意义(P>0.05),术后第2天各组患者上述各指标均较术前明显下降(P<0.05),但各组之间比较差异无统计学意义(P>0.05);术后第10天时各项指标不同程度恢复,且Gln组和EN组患者术后10d各指标均显著高于术后2d(P<0.05);除转铁蛋白之外,Gln组与EN组患者术后第10天总蛋白、白蛋白、前白蛋白水平明显高于PN组(P<0.05),Gln组与EN组之间比较差异无统计学意义(P>0.05)。术前3组患者各项免疫学指标之间的差异无统计学意义(P>0.05);术后第10天Gln组患者CD4和CD8T细胞百分数、CD4/CD8比值以及血清IgM和IgG水平均已基本恢复甚至略超过术前水平,且除IgM以外均明显高于EN组和PN组相应结果(P<0.05);术后第10天EN组和PN组各项指标除EN组IgG以外仍明显低于术前水平(P<0.05)。结论老年胃癌患者行全胃切除术后早期应用谷氨酰胺强化肠内营养是安全可行的。在恢复和改善营养及免疫功能同时,可更好地促进患者术后恢复、缩短住院时间,是此类患者术后营养支持治疗的最佳选择之一。     

Notch1和NUMB在胃癌组织中的表达水平及其意义

目的 研究Notchl和NUMB在胃癌组织中的表达情况及其与胃癌临床病理特征的关系.方法 采用Real-time PCR和Western blotting检测胃癌肿瘤组织和相应正常组织内Notch1和NUMB的表达.结果 Notchl mRNA在胃癌中的平均表达水平是正常胃组织的1.67倍(P<0.05),且与肿瘤的分...     

注射用克林霉素磷酸酯降压物质检查法的研究

目的 建立注射用克林霉素磷酸酯降压物质检查法。方法 通过对注射用克林霉素磷酸酯与组织胺对照品引起麻醉猫血压下降程度比较的研究,确定其降压物质检查法的限值。结果 注射用克林霉素磷酸酯降压物质检查限值确定为5 mg·kg^-1较为合理。结论 注射用克林霉素磷酸酯降压物质检查拟定方法符合规定,方法可行。