以四川、贵州、云南为中心的“南丝绸之路”,是中国古代与内地联系的主要通道,对推动秦汉西南夷经济发展起着举足轻重的作用。本文将使用历史研究方法,即通过对相关文献资料、考古材料的整理,研究秦汉时期南部丝绸之路的基本情况,总结...以四川、贵州、云南为中心的“南丝绸之路”,是中国古代与内地联系的主要通道,对推动秦汉西南夷经济发展起着举足轻重的作用。本文将使用历史研究方法,即通过对相关文献资料、考古材料的整理,研究秦汉时期南部丝绸之路的基本情况,总结秦汉西南夷地区的经济变化现象,并揭示其对西南夷地区的经济影响。The Southern Silk Road, running through Sichuan, Guizhou and Yunnan, was the main transportation artery between the ancient Southwestern Yi Region of China and the hinterland, and it played an important role in promoting the economic changes in the Southwestern Yi Region. This paper will use the historical research method, that is, through the collation of relevant literature and archaeological materials, to study the basic situation of the Southern Silk Road during the Qin and Han Dynasties, to summarize the phenomenon of economic changes in the Southwestern Yi Region in the Qin and Han Dynasties, and to reveal its economic impact on the Southwestern Yi Region.展开更多
目的探讨胰岛素样生长因子-2(IGF-2)在低、高级别胶质瘤组织和血清中的表达和意义。方法收集25例胶质瘤病人的组织标本和血清标本,分为低级别组(n=12)和高级别组(n=13);同时将12例正常人的血清标本作为正常对照组。运用免疫组化、RT-PCR...目的探讨胰岛素样生长因子-2(IGF-2)在低、高级别胶质瘤组织和血清中的表达和意义。方法收集25例胶质瘤病人的组织标本和血清标本,分为低级别组(n=12)和高级别组(n=13);同时将12例正常人的血清标本作为正常对照组。运用免疫组化、RT-PCR、ELISA的实验方法,检测组织和血清中IGF-2蛋白和m RNA的表达水平。结果胶质瘤组织中免疫组化和RT-PCR结果:高级别组IGF-2阳性表达情况明显高于低级别组(P<0.05);高级别组IGF-2 m RNA表达高于低级别组(P<0.05)。高级别组血清中IGF-2表达水平为(541.85±137.45)μg/L,低级别组为(423.60±141.80)μg/L,正常对照组为(294.50±106.23)μg/L,高级别组血清中IGF-2表达高于低级别组和正常对照组(P<0.05)。结论 IGF-2与胶质瘤病理分级相关,在胶质瘤的发生发展中发挥作用。血清检测IGF-2表达水平对胶质瘤病人的诊断和治疗有指导作用。展开更多
文摘以四川、贵州、云南为中心的“南丝绸之路”,是中国古代与内地联系的主要通道,对推动秦汉西南夷经济发展起着举足轻重的作用。本文将使用历史研究方法,即通过对相关文献资料、考古材料的整理,研究秦汉时期南部丝绸之路的基本情况,总结秦汉西南夷地区的经济变化现象,并揭示其对西南夷地区的经济影响。The Southern Silk Road, running through Sichuan, Guizhou and Yunnan, was the main transportation artery between the ancient Southwestern Yi Region of China and the hinterland, and it played an important role in promoting the economic changes in the Southwestern Yi Region. This paper will use the historical research method, that is, through the collation of relevant literature and archaeological materials, to study the basic situation of the Southern Silk Road during the Qin and Han Dynasties, to summarize the phenomenon of economic changes in the Southwestern Yi Region in the Qin and Han Dynasties, and to reveal its economic impact on the Southwestern Yi Region.
文摘目的探讨胰岛素样生长因子-2(IGF-2)在低、高级别胶质瘤组织和血清中的表达和意义。方法收集25例胶质瘤病人的组织标本和血清标本,分为低级别组(n=12)和高级别组(n=13);同时将12例正常人的血清标本作为正常对照组。运用免疫组化、RT-PCR、ELISA的实验方法,检测组织和血清中IGF-2蛋白和m RNA的表达水平。结果胶质瘤组织中免疫组化和RT-PCR结果:高级别组IGF-2阳性表达情况明显高于低级别组(P<0.05);高级别组IGF-2 m RNA表达高于低级别组(P<0.05)。高级别组血清中IGF-2表达水平为(541.85±137.45)μg/L,低级别组为(423.60±141.80)μg/L,正常对照组为(294.50±106.23)μg/L,高级别组血清中IGF-2表达高于低级别组和正常对照组(P<0.05)。结论 IGF-2与胶质瘤病理分级相关,在胶质瘤的发生发展中发挥作用。血清检测IGF-2表达水平对胶质瘤病人的诊断和治疗有指导作用。
