目的探讨肌腱蛋白-C(TNC)与肝移植术后早期急性排斥反应(AR)的关系。方法将6只Brown Norway(BN)大鼠和16只Lewis大鼠分为AR组(Lewis→BN,供、受体各6只)和对照组(Lewis→Lewis,供、受体各5只)。对两组大鼠移植肝组织进行病理学检查,采用...目的探讨肌腱蛋白-C(TNC)与肝移植术后早期急性排斥反应(AR)的关系。方法将6只Brown Norway(BN)大鼠和16只Lewis大鼠分为AR组(Lewis→BN,供、受体各6只)和对照组(Lewis→Lewis,供、受体各5只)。对两组大鼠移植肝组织进行病理学检查,采用Banff分级评估排斥活动指数(RAI);采用免疫组织化学(免疫组化)染色、蛋白质印迹法检测两组大鼠移植肝TNC蛋白表达情况;采用酶联免疫吸附试验(ELISA)检测血清TNC表达水平,并分析其与RAI评分的相关性。结果大鼠肝移植术后7 d移植肝病理学结果显示AR组RAI评分高于对照组;免疫组化结果显示术后7 d AR组移植肝TNC阳性细胞分布多于对照组;蛋白质印迹法结果显示术后7 d AR组移植肝TNC蛋白相对表达量高于对照组(t=5.112,P=0.007);ELISA结果显示术后7 d AR组血清TNC表达水平高于对照组(t=3.152,P=0.012),且血清TNC表达水平与RAI评分呈正相关(r=0.7909,P=0.004)。结论肝移植术后TNC表达水平与AR相关,TNC有可能成为临床肝移植术后早期AR诊断和治疗的新靶点。展开更多
Allylic amines and 1,3-oxazinanes are valuable molecular skeletons in organic synthesis and pharmaceutical industry.A straightforward way to such two types of compounds by solvent-controlled rare-earth metal Lewis aci...Allylic amines and 1,3-oxazinanes are valuable molecular skeletons in organic synthesis and pharmaceutical industry.A straightforward way to such two types of compounds by solvent-controlled rare-earth metal Lewis acid-catalyzed transformations of 2-(hetero)aryl-N-sulfonylazetidines:the ring-opening isomerization of azetidines to allylic amines and the annulation of azetidines with aldehydes to 1,3-oxazinanes are reported.These two reactions feature scalability,low catalyst loading,mild reaction conditions,excellent yields and regioselectivity with demonstrated utility in three-step product transformations to naftifine,abamine and abamine SG.展开更多
文摘目的探讨肌腱蛋白-C(TNC)与肝移植术后早期急性排斥反应(AR)的关系。方法将6只Brown Norway(BN)大鼠和16只Lewis大鼠分为AR组(Lewis→BN,供、受体各6只)和对照组(Lewis→Lewis,供、受体各5只)。对两组大鼠移植肝组织进行病理学检查,采用Banff分级评估排斥活动指数(RAI);采用免疫组织化学(免疫组化)染色、蛋白质印迹法检测两组大鼠移植肝TNC蛋白表达情况;采用酶联免疫吸附试验(ELISA)检测血清TNC表达水平,并分析其与RAI评分的相关性。结果大鼠肝移植术后7 d移植肝病理学结果显示AR组RAI评分高于对照组;免疫组化结果显示术后7 d AR组移植肝TNC阳性细胞分布多于对照组;蛋白质印迹法结果显示术后7 d AR组移植肝TNC蛋白相对表达量高于对照组(t=5.112,P=0.007);ELISA结果显示术后7 d AR组血清TNC表达水平高于对照组(t=3.152,P=0.012),且血清TNC表达水平与RAI评分呈正相关(r=0.7909,P=0.004)。结论肝移植术后TNC表达水平与AR相关,TNC有可能成为临床肝移植术后早期AR诊断和治疗的新靶点。
文摘Allylic amines and 1,3-oxazinanes are valuable molecular skeletons in organic synthesis and pharmaceutical industry.A straightforward way to such two types of compounds by solvent-controlled rare-earth metal Lewis acid-catalyzed transformations of 2-(hetero)aryl-N-sulfonylazetidines:the ring-opening isomerization of azetidines to allylic amines and the annulation of azetidines with aldehydes to 1,3-oxazinanes are reported.These two reactions feature scalability,low catalyst loading,mild reaction conditions,excellent yields and regioselectivity with demonstrated utility in three-step product transformations to naftifine,abamine and abamine SG.