还原型谷胱甘肽联合甘草酸二铵对腹部开放伤后海水浸泡犬肝功能损伤的治疗作用

Objective To investigate effect of reduced glutathione and diammonium glycyrrhizinate on the treatment of hepatic damage in experimental dogs following open abdominal injuries coupled with seawater immersion. Methods Twenty-four dogs with open abdominal injuries were randomly divided into 3 groups: the control group (given with simple observation after 1.5 h seawater immersion); the routine treatment group (given routine care and fluid transfusion after 1.5 h seawater immersion) ; the hepatic treatment group (given routine are, fluid transfusion and hepatic treatment as well, after 1.5 h seawater immersion). Each group consisted of 8 dogs. Blood samples were taken at different time points to measure total bilirubin (TB), alanine aminotransferase (ALT), aspartate aminotransferase (AST), lactate dehydrogenase (LDH), prothromin time (PT), endotoxin, tumor necrosis factor-α(TNF-α), interleukin-6 (IL-6), and pathological examination was also made at the same time. Results For the control group, contents of TB, ALT, AST and LDH increased significantly and survival time was less than 24 hours. Contents of TB, ALT, AST and LDH of the routine treatment group also increased significantly, but survival time of all the experimental animals was mere than 24 hours. Reduced glutathione and diammonium glycyrrhizinate could reduce the extent of lesion quite significantly 12～24 hours following open abdominal injuries. Conclusions Reduced glutathione and diammonium glycyrrhizinate seemed to have good effects on the treatment and prevention against hepatic damage induced by trauma coupled with seawater immersion. It could be used as a primary means for the treatment of such kind of hepatic damage.     

肝脏胶原的来源和分布及与肝纤维化的关系

胶原蛋白约占人体内总蛋白的1/3。慢性肝病肝组织胶原代谢甚为活跃。许多资料证实,胶原在组织内的转换(turnover)比较快,而以往认为代谢非常缓慢。在肝纤维化过程中,肝脏胶原合成代谢增加。随着对胶原代谢认识的深入,肝脏纤维化的研究也从纯描述性研究及生理性研究发展到动力学研究,     

还原型谷胱甘肽联合甘草酸二铵对腹部开放伤后海水浸泡犬肝功能损伤的治疗作用

Objective To investigate effect of reduced glutathione and diammonium glycyrrhizinate on the treatment of hepatic damage in experimental dogs following open abdominal injuries coupled with seawater immersion. Methods Twenty-four dogs with open abdominal injuries were randomly divided into 3 groups: the control group (given with simple observation after 1.5 h seawater immersion); the routine treatment group (given routine care and fluid transfusion after 1.5 h seawater immersion) ; the hepatic treatment group (given routine are, fluid transfusion and hepatic treatment as well, after 1.5 h seawater immersion). Each group consisted of 8 dogs. Blood samples were taken at different time points to measure total bilirubin (TB), alanine aminotransferase (ALT), aspartate aminotransferase (AST), lactate dehydrogenase (LDH), prothromin time (PT), endotoxin, tumor necrosis factor-α(TNF-α), interleukin-6 (IL-6), and pathological examination was also made at the same time. Results For the control group, contents of TB, ALT, AST and LDH increased significantly and survival time was less than 24 hours. Contents of TB, ALT, AST and LDH of the routine treatment group also increased significantly, but survival time of all the experimental animals was mere than 24 hours. Reduced glutathione and diammonium glycyrrhizinate could reduce the extent of lesion quite significantly 12～24 hours following open abdominal injuries. Conclusions Reduced glutathione and diammonium glycyrrhizinate seemed to have good effects on the treatment and prevention against hepatic damage induced by trauma coupled with seawater immersion. It could be used as a primary means for the treatment of such kind of hepatic damage.     

Ⅳ型胶原酶门脉灌注治疗兔肝硬化有效性与安全性的观察

目的应用四氯化碳(CCl4)诱导兔肝硬化模型,观察Ⅳ型胶原酶门脉灌注对肝硬化程度及全身重要器官组织病理学的影响。方法新西兰大白兔皮下注射50%CCl4橄榄油造模后,将已形成肝硬化并门静脉插管成功的30只兔随机分为2组,组1经门静脉给药通路注入0.1%Ⅳ型胶原酶1.5 mL,组2注入等量0.9%氯化钠,5次/周,共4周。4周后,将各组动物处死,留取各器官组织,观察其病理学变化。结果造模成功后可观察到典型肝硬化病理表现,门脉灌注0.1%Ⅳ型胶原酶肝硬化动物肝脏纤维化程度明显降低,门静脉、心脏、肺、肾脏、脑组织等部位组织病理学无异常表现。结论采用门脉灌注0.1%Ⅳ型胶原酶可显著降低肝纤维化程度,在此剂量下,具有一定的全身安全性。     

胶原酶门静脉灌注延缓兔实验性肝硬化的形成

肝硬化是大多数慢性肝病的终末期。目前肝硬化治疗的惟一方法是肝移植，但肝脏供体不足使大量患者得不到治疗。研究表明肝纤维化是可逆的，而肝硬化的逆转并不完全。胶原酶门静脉灌注是肝细胞分离的一项技术。本研究试图用有限剂量胶原酶门静脉灌注，降解硬化肝内过多沉积的胶原而不分散或破坏细胞，从而逆转肝硬化。     

肝脏纤维化的诊断对策

肝脏纤维化的诊断对策金博，李玉彬肝脏纤维化是一个慢性的、渐进性的过程，诊断的主要问题在于如何确定肝脏纤维化的程度，从而正确的估计病情并指导治疗。目前采用的诊断方法可分为三大部分，即病理学诊断、影像学诊断和血清学诊断。一、病理学诊断到目前为止，肝纤维化...     

HCV NS3诱导小鼠特异性T细胞反应的抗原多肽序列筛选

目的 筛选HCV NS3的小鼠T细胞表位多肽序列.方法 BALB/c小鼠用HCV NS3加po-ly （I∶C）或CpG ODN及Montanide ISA720佐剂免疫后,分离其脾淋巴细胞,以覆盖HCV NS3全基因的合成重叠多肽组成的不同多肽库进行刺激,以ELISPOT及流式细胞术检测分泌干扰素γ（IFN-γ）的细胞数及CD8＋/IFN-γ＋细胞或CD4 ＋/IFN-γ＋细胞百分比,确定抗原性最强的多肽库,找出HCV NS3的小鼠T细胞表位多肽.结果 通过ELISPOT及流式细胞术检测,能够刺激淋巴细胞分泌IFN-γ最多及CD8 ＋/IFN-γ＋细胞或CD4＋/IFN-γ＋细胞百分比最高的多肽被选出作为阳性多肽,其中的一个多肽经进一步的ELISPOT及流式细胞术检测确认,其序列为GGCSGGAYDⅢCDECHS.结论 HCV NS3小鼠T细胞表位序列的确定为HCV疫苗的研究打下了基础.     

Ⅳ型胶原酶门脉灌注对兔肝硬化组织中ɑ-平滑肌动蛋白的影响

目的四氯化碳（CC l4）皮下注射建立兔肝硬化动物模型,观察Ⅳ型胶原酶门脉灌注对肝硬化组织中α-平滑肌动蛋白（α-SMA）表达的影响。方法取雄性新西兰大白兔,采用臀部皮下注射50%CC l4橄榄油0.23 mL/kg,每周2次,共12周制作肝硬化动物模型,注射等量橄榄油作为对照。12周后各组动物均建立门静脉给药通路,将已形成肝硬化并门静脉插管成功的33只兔随机分为两组（组1,组2）,组1有16只、组2有17只。组1经门静脉给药通路注入0.1%Ⅳ型胶原酶1.5 mL,组2注入等量0.9%NaC l,5次/周,共4周。将造模对照组中门静脉插管成功的30只兔同样随机分为两组（组3,组4）,每组15只,处理方法同前。4周后,将各组动物处死后留取肝脏组织,固定后α-SMA免疫组织化学染色,行积分光密度、面密度分析。结果肝硬化动物肝脏α-SMA表达显著增强;门脉灌注0.1%Ⅳ型胶原酶肝硬化动物肝脏纤维化程度明显降低,但α-SMA表达强度显著增高。结论采用门脉灌注0.1%Ⅳ型胶原酶可显著增高α-SMA表达,可能与肝脏肝星状细胞激活有关。     

数字X线机用于静脉肾盂造影检查方法

目的：探讨应用数字透视、摄影（DR）技术进行静脉肾盂造影的检查方法。方法：对应用东芝DBA-300数字X线机做138例静脉肾盂造影与应用常规X线机做100例静脉肾盂造影结果对比分析。结果：应用数字透视与摄影技术相结合所做静脉肾盂造影除14例因病人肾功不好肾盂显影不好外均获得满意的全尿路充盈影像，而应用常规造影技术直接摄影的造影方法仅43例可获得全尿路充盈影像。结论：应用数字X线机做静脉肾盂造影，以其先进的数字透视与摄影技术使检查方便、快捷，在短时间内完成检查可获得高质量的全尿路充盈影像。