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A20基因在活性氧对内皮细胞损伤中的保护作用 被引量:4
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作者 糜建红 朱楚洪 应大君 《中国临床康复》 CSCD 2004年第11期2046-2047,共2页
目的:探讨外源性锌指蛋白A20对氧损伤诱导内皮细胞同型半胱氨酸蛋白酶Caspase3表达和凋亡的影响。方法:DOTAP脂质体介导pcDNA3.1EHA20质粒转染人脐静脉内皮细胞,经G418筛选,免疫荧光检测A20基因的表达,Tunnel原位末端标记法、原位杂交... 目的:探讨外源性锌指蛋白A20对氧损伤诱导内皮细胞同型半胱氨酸蛋白酶Caspase3表达和凋亡的影响。方法:DOTAP脂质体介导pcDNA3.1EHA20质粒转染人脐静脉内皮细胞,经G418筛选,免疫荧光检测A20基因的表达,Tunnel原位末端标记法、原位杂交检测转染前后过氧化氢诱导内皮细胞凋亡情况及Caspase3的表达情况。结果:A20基因在内皮细胞得到有效表达,正常对照组及转染A20基因组人内皮细胞凋亡为(4±1)%,过氧化氢作用后对照组与转染A20基因组凋亡分别为(21±2)%,(6±1)%,两者相差有显著性意义(P<0.05)。A20基因能显著抑制过氧化氢诱导的内皮细胞Caspase3的表达。结论:A20基因在活性氧对内皮细胞损伤中具有保护作用,在缺血再灌注等相关疾病防治方面可能有一定作用。 展开更多
关键词 A20基因 活性氧 内皮细胞损伤 保护作用 同型半胱氨酸蛋白酶 外源性锌指蛋白 细胞凋亡
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Serum metrix metalloproteinase-9 combined with homocysteine, IL-6, TNF-α, CRP, HbA11c and lipid profile in the incipient diabetic nephropathy with or without macrovascular diseases
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作者 贾伟 袁强 +5 位作者 梁永平 王惠敏 韩向群 尹淑巧 朱晓梅 刘桂芝 《Journal of Medical Colleges of PLA(China)》 CAS 2007年第2期111-114,共4页
Objective : To evaluate the changes of serum matrix metalloproteinase-9 (romp-9) in patients of incipient diabetic nephropathy with or without macrovascular disease and to analyze the factors associated with homocy... Objective : To evaluate the changes of serum matrix metalloproteinase-9 (romp-9) in patients of incipient diabetic nephropathy with or without macrovascular disease and to analyze the factors associated with homocysteine(hcy), interleukin-6(IL-6), tumor necrosis factor-alpha (TNF-α), highly sensitive C-reactive protein (hsCRP), HbAlc and lipid profile in those patients in order to know whether this marker or other factors are more important to induce diabetic macrovascular disease. Methods: Type 2 diabetes mellitus(T2DM) subjects with incipient diabetic nephropathy with or without macrovascular disease were selected for participation and divided into 2 groups. The patients in group 1 (n= 38) used insulin, and patients in group 2 (n=34) were treated with an oral antidiabetic drug. Then serum mmp-9, hey, IL-6 and TNF-α in these patients were measured, and compared to the healthy subjects as control (n= 16). The results were analyzed by SPSS13. Results: Serum romp-9 and hcy of the patients having incipient diabetic nephropathy with macrovascular disease were higher than that of patients without macrovascular disease (P〈0.01). For insulin-injected patients, whether they accompanied with macrovascular diseases or not, the serum levels of romp-9, hcy, IL-6 and TNF-α were all lower, but no significant statistics compared with non-insulin used patients or the healthy subjects. The serum level of romp-9 was more correlated with the serum hcy in antidiabetic drug used patients. (P〈0. 000) Conclusion: The serum level of romp-9 plays an important role of pathogenesis in the macrovascular disease in the incipient diabetic patients, and the serum level of hcy also can reflect the severely degree of macrovascular disease in these patients, insulin can reduce these markers. 展开更多
关键词 mmp-9 type-2 diabetic mellitus macrovascular disease HOMOCYSTEINE IL-6 TNF-Α
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