调节性CD4+T细胞在大鼠自发肝移植耐受中的作用

目的 探讨在肝移植的自发耐受模型中，调节性CD4^＋T细胞的免疫抑制作用机制。方法 利用近交系大鼠从Lewis（LEW）到Wistar Furth（WF）的肝移植组合，对移植后不同时期的宿主注射抗CD4的单克隆抗体（Anti-CD4mAb），然后抽血检测丙氨酸氨基转氨酶（ALT）的动态变化；并结合细胞毒性T淋巴细胞（CTL）试验了解宿主脾细胞中T细胞亚群的动态改变。结果 对肝移植自然生存的宿主注射Afiti—CD4mAb后，术后第21天、42天均能够诱导出肝损害（排斥反应），但第56天、100天以上的则未能诱导出来，且该损害能被抗CD8单克隆抗体阻断。另外CTL试验显示宿主的脾细胞中，初始型CTL前体细胞在移植56d后未能检测出来。结论 在自发性肝耐受模型中。宿主术后早期存在由CD4^＋T细胞介导的下调原始效应性T细胞的作用机制。     

EBV－DNA酶全基因扩增克隆和鉴定

根据Ｂｅａｒ的ＥＢ病毒（ＥＢＶ）基因全序列，设计包括ＥＢＶ特异性ＤＮＡ酶全基因的一对引物，在引物上设计有一个ＳａｌⅠ切点，以便于克隆。选用蛋白酶Ｋ裂解的Ｒａｊｉ细胞ＤＮＡ为模板，扩增出一条１４６０ｂｐ的特异条带，纯比后经ＴａｑⅠ酶切形成１１９８ｂｐ和２６２ｂｐ的两个片段，证实该扩增片段即为ＥＢＶ特异性ＤＮＡ酶的全基因片段。以ＪＭ１０３为宿主菌，以高效表达质粒ＰＢＶ２２１为载体，按常规方法作酶切、连接、转化，最后在含氨中青霉素的培养基上挑取单菌落扩大培养，用快速法少量制备质粒ＤＮＡ。根据质粒电泳结果粗筛，再行ＢａｍＨⅠ酶切初步鉴定，确定质粒大小为５１１７（１４５１＋３６６６）ｂｐ的菌落为阳性克隆。先后用ＢａｍＨⅠ和ＴａｑⅠ消化阳性重组体，以形成１２００ｂｐ和３９１７ｂｐ两片段的确定为正向连接重组体。本实验首次将ＥＢＶ－ＤＮＡ酶全基因片段克隆到高效表达载体ｐＢＶ２２１上获得成功     

医务人员与疗养员之间的沟通技巧

我科作为一个疗养、康复的特殊医疗机构，它不仅为疗养员提供优美、安静、舒适的疗养环境，更重要的是为他们提供健康的心理疗养圣地，使疗养员们在这特殊的医疗场所中充分认识到什么是真正的健康：即所谓生理-社会-心理健康，而疗养院医务人员与疗养员之间良好的沟通是健康疗养的关键，掌握谈话沟通技巧可增加病人的信任感、亲和力，     

氟比洛芬酯用于腹部手术后镇痛的临床观察

目的评价氟比洛芬酯注射液用于腹部手术术后镇痛的安全性和有效性。方法将45例行开腹胆囊切除术的患者随机分成3组,A组注射氟比洛芬酯注射液,B组按需求肌注度冷丁2mg/kg,C组采用硬膜外患者自控镇痛。术后2、4、12、24h进行模糊视觉疼痛评分(VAS)法评分,监测患者的心率、呼吸、血压及脉搏氧饱和度,并记录副反应。结果A组无1例加用度冷丁,A组和C组术后2、12和24h的VAS分值均明显低于B组(p<0.05)。3组恶心呕吐的发生率无显著性差异(p>0.05)。结论氟比洛芬酯注射液用于腹部手术术后镇痛,持续、有效、经济,使用方便,不良反应少。     

终末期肝病模型评分在原发性肝癌合并肝硬化脾功能亢进外科治疗中的作用

目的 探讨终末期肝病模型(MELD)评分评估肝储备功能在原发性肝癌合并肝硬化脾功能亢进中确定手术适应证的应用价值.方法 对2001年1月至2007年1月间行肝癌切除联合脾切除(联合术)治疗的40例原发性肝癌合并肝硬化脾功能亢进患者的临床资料进行回顾性分析.通过MELD评分与Child-Pugh分级比较,结合临床资料及术后并发症分析,确定这一方法在评估肝储备功能中的作用.结果 同一Child-Pugh分级的患者MELD评分结果并不一致,在各级别间有交错现象.术后发生肝功能衰竭组(6例)的MELD评分均值为(24.6±6.6).未发生肝功能衰竭组(34例)的MELD评分均值为(16.3±8.5),差异有统计学意义(P<0.05).根据MELD评分分为A组16例(MELD评分<10),B组17例(MELD评分10-20),C组7例(MELD评分>20).A组术后肝功能衰竭发生率为0,B组为11.8%(2/17),C组为57.1%(4/7),差异有统计学意义(P<0.05).根据Child-Pugh分级分为Ⅰ级26例,Ⅱ级14例.Ⅰ级术后肝功能衰竭发生率为15.4%(4/26),Ⅱ级为14.3%(2/14),差异无统计学意义(P>0.05).结论 MELD评分能够较为客观地反映肝储备功能,对外科术式的选择、手术时机的确定有一定的参考作用.     

体外不同比例再生肝细胞与结肠癌细胞的共培养

Objective To investigate the proliferation potential of colon cancer cells co-cultured with different proportions regenerating hepatocytes and role of the cell growth factors related to liver regeneration in vitro.Methods Active regenerating hepatocytes were obtained by collagenase perfusion in situ of rats models underwent 70% liver resection after 24 hours.Co-cultures with different proportions of hepatocytes to human colon cell line SW480 were performed respectively.The proportion of hepatocytes to human colon cell line SW480 Was 10:1 in group A,1:1 in group B.There was only human colon cell line SW480 in group C(control group).Proliferation capacity was assessed with the percentage by 3H-thy incorporation.Concentration of epidermal growth factor(EGF),insulin-like growth factor-1(IGF-1)and hepatocyte growth factor(HGF)was analyzed by ELISA.Results There was no significant difference among the 3 groups in 3H-thy incorporation percentage,and concentration of EGF,IGF-land HGF after 24 hours' culture(P>0.05).3H-thy incorporation percentage(15.9±1.4,13.2±1.5),and concerntration of EGF [(722.9±55.4)ng/L,(498.2+41.5)ng/L]and IGF-1[(755.2±35.7)ng/L,(538.1±37.5)ng/L]in Group A and B were higher than that in group C after 72 hours(P<0.05).Especially the indexes above in group A were higher than that in group B(P<0.05).there was no significant difference in concerntration of HGF among the 3 groups after 72 hours(P>O.05).Conclusions These results imply that the regenerating hepatocytes contribute to the hyperproliferative state of co-culturing colon cancer cells.The mechanism maybe have relationship with EGF and IGF-1 high expression in colon cancer cells caused by growth signals coming from hepatocytes.     

体外不同比例再生肝细胞与结肠癌细胞的共培养

Objective To investigate the proliferation potential of colon cancer cells co-cultured with different proportions regenerating hepatocytes and role of the cell growth factors related to liver regeneration in vitro.Methods Active regenerating hepatocytes were obtained by collagenase perfusion in situ of rats models underwent 70% liver resection after 24 hours.Co-cultures with different proportions of hepatocytes to human colon cell line SW480 were performed respectively.The proportion of hepatocytes to human colon cell line SW480 Was 10:1 in group A,1:1 in group B.There was only human colon cell line SW480 in group C(control group).Proliferation capacity was assessed with the percentage by 3H-thy incorporation.Concentration of epidermal growth factor(EGF),insulin-like growth factor-1(IGF-1)and hepatocyte growth factor(HGF)was analyzed by ELISA.Results There was no significant difference among the 3 groups in 3H-thy incorporation percentage,and concentration of EGF,IGF-land HGF after 24 hours' culture(P>0.05).3H-thy incorporation percentage(15.9±1.4,13.2±1.5),and concerntration of EGF [(722.9±55.4)ng/L,(498.2+41.5)ng/L]and IGF-1[(755.2±35.7)ng/L,(538.1±37.5)ng/L]in Group A and B were higher than that in group C after 72 hours(P<0.05).Especially the indexes above in group A were higher than that in group B(P<0.05).there was no significant difference in concerntration of HGF among the 3 groups after 72 hours(P>O.05).Conclusions These results imply that the regenerating hepatocytes contribute to the hyperproliferative state of co-culturing colon cancer cells.The mechanism maybe have relationship with EGF and IGF-1 high expression in colon cancer cells caused by growth signals coming from hepatocytes.     

大承气汤联合自膨式金属支架在左半结直肠恶性梗阻治疗中的应用

目的:探讨大承气汤联合自膨式金属支架(SEMS)在左半结直肠恶性梗阻(MLBO)治疗中的作用及安全性。方法:选取2018年1月—2020年6月天津市人民医院收治的因MLBO行SEMS治疗的患者78例。随机化分为大承气汤组38例,聚乙二醇组40例。两组患者均进行限期手术治疗,在后续治疗时,大承气汤组口服大承气汤(1袋,125 mL/次,2次/d),聚乙二醇组口服聚乙二醇(舒泰清,A剂+B剂各2袋/次,饮用水冲调至125 mL/次,2次/d),比较2组术前准备时间、腹腔镜率、手术时间、并发症发生率、造口率、排气时间、术后住院时间、淋巴结清扫数目及术后病理水肿程度等差异。结果:大承气汤组的术前准备时间为6(5,7) d,低于聚二乙醇组的8(6,9) d,差异有统计学意义(P<0.001)。大承气汤组限期手术的腹腔镜率为65.8%,高于聚乙二醇组的40.0%,差异有统计学意义(P=0.023)。大承气汤组在造口率(21.1% vs 50.0%)及并发症发生率(15.8% vs 40.0%)方面亦优于聚乙二醇组(均P<0.05)。两组的淋巴清扫数目无明显差异(P=0.2),但大承气汤组的病理组织水肿程度比聚乙二醇组轻,差异有统计学意义(P=0.043)。结论:大承气汤可有效提高MLBO放置SEMS后限期手术的肠道准备效率及质量,提高腹腔镜成功率,并明显降低限期手术并发症发生率及造口率。     

肝移植术后合并精神状态异常1例

患者,女,３２岁。临床诊断为晚期肝硬化（丙肝）,门静脉高压,脾功能亢进,脾动脉栓塞术后,移植术前精神状况良好,三代无家族精神病史于２００１年３月接受了原位全肝移植术,手术时间１０ｈ,术中出血１２００ ｍｌ。术后常规抗排斥、抗感染、抗凝血三联治疗。术后的丙氨酸转氨酶（ＡＬＴ）和直接胆红素（ＤＢＩＬ）在第６天又复持续性升高,伴胆汁明显减少和肝区隐痛不适,诊断为急性排斥反应,给予激素冲击治疗后进行性下降,第１０天起渐伴兴奋多语、夜间失眠等精神症状,给予催眠等药物治疗未见改善。于术后第１７天出现了明显的…