糖尿病肾病血瘀证大鼠铁死亡相关基因GPX4、ACSL4表达水平变化

目的 探究糖尿病肾病(diabetic kidney disease, DKD)血瘀证大鼠肾损害与肾脏铁死亡的潜在机制。方法 将50只SPF级雄性SD大鼠分为对照组、DKD组、DKD血瘀证组。采用腹腔注射链脲佐菌素的方法复制DKD大鼠模型,采用尾静脉注射右旋糖酐的方法复制DKD血瘀证模型。实验过程中观察大鼠血瘀证表现及检测24 h尿蛋白、血清肌酐、血尿素氮、血液流变学指标,采用苏木精-伊红染色、Masson染色、PAS染色观察肾脏的组织形态,采用透射电子显微镜观察铁死亡典型细胞的线粒体变化;采用免疫组织化学法、Western blot法检测肾组织铁死亡相关蛋白[长链酯酰辅酶A合成酶4(Acyl-CoA synthetase long chain family member 4,ACSL4)、谷胱甘肽过氧化物酶4(glutathione peroxidase 4,GPX4)]及肾脏纤维化指标[纤维连接蛋白(fibronectin, FN)、Ⅳ型胶原蛋白(typeⅣcollagen, Col-Ⅳ)]的表达水平。结果 与对照组比较,DKD组大鼠肾脏病理变化加重,线粒体损伤明显,24 h尿蛋白...     

肝豆状核变性肝纤维化程度与中医证型相关性研究

目的 基于二维超声剪切波测量联合血清肝纤维化和肝功能指标,探讨肝豆状核变性（hepatolenticular degeneration,HLD）患者中医证型与肝纤维化程度的相关性。方法 将89例HLD患者根据中医临床辨证分型分为痰瘀互结组（44例）、湿热内蕴组（33例）、肝肾阴虚组（12例）。比较二维超声剪切波测量指标和血清肝纤维化指标\[透明质酸酶（hyaluronidase,HA）、层黏连蛋白、Ⅳ型胶原、Ⅲ型前胶原N端肽\]、肝功能指标（血清天冬氨酸氨基转移酶、丙氨酸氨基转移酶、总胆红素）水平,并进行相关性分析。结果 3组患者门静脉内径比较,差异无统计学意义（P＞0.05）。与痰瘀互结组比较,湿热内蕴和肝肾阴虚组剪切波速度均显著降低（P＜0.05）;与湿热内蕴组比较,肝肾阴虚组剪切波速度显著降低（P＜0.05）,脂肪衰减系数显著减小（P＜0.05）。与痰瘀互结组比较,肝肾阴虚组HA水平显著降低（P＜0.05）,其他生化指标各证型组之间比较,差异均无统计学意义（P＞0.05）。3种证型患者剪切波速度与HA存在正相关（P＜0.05）。鉴别痰瘀互结证与湿热内蕴证、痰瘀互结证与肝肾阴虚证时,以剪切波速度的诊断价值最高;鉴别湿热内蕴证与肝肾阴虚证时,以脂肪衰减系数的诊断价值最高。结论 HLD的肝肾阴虚、湿热内蕴、痰瘀互结证型中的肝纤维化程度存在显著差异,以痰瘀互结证的肝纤维化程度更明显,与剪切波速度、脂肪衰减系数、HA密切相关。     

纤维连接蛋白在多器官功能不全综合征的心肺肾组织中的表达

目的 探讨纤维连接蛋白(FN)在多器官功能不全综合征(MODS)中的表达规律及其意义。方法 应用免疫组化技术,对20例MODS和12例非MODS死亡标本的心、肺、肾组织的FN进行检测。结果 非MODS的心、肺、肾组织FN表达多为阳性或强阳性,MODS多为弱阳性或阳性;两组间比较,差异显著(P<0.01)。结论　MODS时组织中FN降低,FN降低可能导致MODS。     

肉鸡脂肪肝综合征血液流变学和生化指标变化的研究

用高脂肪日粮饲喂45日龄三黄肉鸡,建立脂肪肝综合征(fatty liver syndrome,FLS)病理模型,系统观察了FLS鸡血液流变学和生化指标的变化规律。与正常对照鸡比较,FLS鸡全血黏度、血浆黏度、全血高切还原黏度、全血低切还原黏度、全血高切相对指数、全血低切相对指数显著升高(P<0.01),ESR血沉、血沉方程k值降低(P<0.01);血清甘油三酯含量、总胆固醇含量、低密度脂蛋白胆固醇含量、丙氨酸氨基转移酶活性、天门冬氨酸氨基转移酶活性以及肝脂肪含量和肝指数明显升高(P<0.01)。     

Paradise Lost...: The Meaning of Modernity and the Antinomy of the Law

This essay argues for the centrality of the study of paradoxes of particularity and universality in the interface between law and politics in modernity. Particularly, in order to understand the process of constitution of a political collective and the role of supernumerary elements that re-enter a constituted legal-political system. After introducing the question of paradoxes or antinomies in the relation between law and politics in modernity, the essay engages with current understandings of exceptionalism and the possibility of a leftist or ‘real’ suspension of the law. In order to do so, this essay makes full use of certain theoretical tools developed in anthropological accounts of political and legal processes, and current French-oriented and Latin American political philosophy.     

维拉帕米对低温诱发腹水综合征病鸡右心功能的影响

300只15日龄商品肉仔鸡随机分为常温组、低温组和维拉帕米组,以研究L型电压依赖性钙通道拮抗剂维拉帕米对腹水综合征病鸡右心功能的影响。结果,与低温组相比,维拉帕米可显著降低肉鸡腹水综合征的发生率;维拉帕米组肉鸡腹水心脏指数分别在29、36、43和50日龄时显著或极显著降低;右心室收缩压在36和43日龄时极显著降低,右心室舒张压在36和43日龄时也显著或极显著下降;右心室内压最大变化速率在43日龄时极显著升高。结果表明,维拉帕米可显著降低肉鸡腹水和右心肥大的发生,能有效维护右心功能。     

世纪之初中国发展的国际环境评估

2l世纪初的国际环境对中国战略机遇期的发展至关重要。任何国家实现国家目标的过程都是国际互动过程,大国关系、国家安全及周边环境等因素将会影响中国未来的发展。     

U.S. Needs Neutral Policy on Sea Disputes

正U.S.National Security Advisor Susan Rice said during her first visit to China from September 7 to 9 that President Barack Obama regards his scheduled November visit to China as a milestone,because he attaches great importance to U.S.-China relations.Although Obama’s visit is still a month away,observers believe that instability in the South China Sea due to the"pivot to Asia"policy of the U.S.will be high on the     

Interpersonal metaphor revisited: identification,categorization, and syndrome

Grammatical metaphor (ideational metaphor and interpersonal metaphor as sub-categories) “leads to an expansion of the meaning potential: by creating new patterns of structural realization, it opens up new systemic domains of meaning”. Ideational metaphor has been extensively studied in terms of identification, categorization, and application. Interpersonal metaphor, though being readily applicable to interaction-oriented disciplines, has not been studied in depth and many issues remain to be tackled. One significant issue is how to identify interpersonal metaphor, metaphors of mood in particular. With instances from the CORP corpus built out of successful reply posts by doctors and nurses on the health forum of doctorslounge.com, we propose two principles (Context-first Principle and AS IF Principle) that can be used to identify both metaphors of mood and metaphors of modality. Categories of interpersonal metaphor and the metaphoric syndrome can thus be described in a consistent way.     

认识法医学中的AIDS

获得性免疫缺陷综合征(acquiredimmune deficiency syndrome,AIDS),又称爱滋病,其发病率呈逐渐上升趋势,尤其在需要法医病理学鉴定的尸体中所占的比例可能更高.其流行病学研究业已取得较大进展.法医如何认识爱滋病,在实践检案中如何加强自我保护,在国外法医同道中有一些成熟的理论和操作方法;但在国内法医学界,对这些问题的认识尚有差距.作者从国内外刊物上摘录有关内容加以整理,从流行病学、临床学、鉴定学及鉴定中的防范措施等方面入手,目的在于引起法医学界对爱滋病的重视,避免对该类案例的误鉴,拜促进防范措施的建立,以利于自我保护.