膜性肾病(MN)是以肾小球上皮下免疫复合物均一沉着为特点的常见的原发性肾小球疾病。本文应用Lowicryl K 4M低温包埋的免疫电镜方法,包括双标记技术,对十例不同期MN肾小球上免疫球蛋白(IgS)成份的形成过程进行了定位、定量检测。本文结...膜性肾病(MN)是以肾小球上皮下免疫复合物均一沉着为特点的常见的原发性肾小球疾病。本文应用Lowicryl K 4M低温包埋的免疫电镜方法,包括双标记技术,对十例不同期MN肾小球上免疫球蛋白(IgS)成份的形成过程进行了定位、定量检测。本文结果提示,不同期MN沉积的免疫复合物其成份、数量及沉积位点是有差异的。于早期,IgG除集中在上皮下电子致密物上,还存在于足细胞间隙、上皮细胞表面,以及上皮细胞内。展开更多
Mitogen-activated protein kinases (MAPKs), including extracellular signal-regulated kinases (ERKs), c-Jun NH2-terminal kinases (JNKs) and p38 MAPK, play an important role in transducting environmental stimuli to the t...Mitogen-activated protein kinases (MAPKs), including extracellular signal-regulated kinases (ERKs), c-Jun NH2-terminal kinases (JNKs) and p38 MAPK, play an important role in transducting environmental stimuli to the transcriptional machinery in the nucleus in mammalian cells by virtue of their ability to phosphorylate and regulate the activity of various transcription factors. It was recently found that the changes in activity of MAPKs occurred during ischemia/reperfusion, but the biological significance of the changes was still controversial.展开更多
文摘膜性肾病(MN)是以肾小球上皮下免疫复合物均一沉着为特点的常见的原发性肾小球疾病。本文应用Lowicryl K 4M低温包埋的免疫电镜方法,包括双标记技术,对十例不同期MN肾小球上免疫球蛋白(IgS)成份的形成过程进行了定位、定量检测。本文结果提示,不同期MN沉积的免疫复合物其成份、数量及沉积位点是有差异的。于早期,IgG除集中在上皮下电子致密物上,还存在于足细胞间隙、上皮细胞表面,以及上皮细胞内。
文摘Mitogen-activated protein kinases (MAPKs), including extracellular signal-regulated kinases (ERKs), c-Jun NH2-terminal kinases (JNKs) and p38 MAPK, play an important role in transducting environmental stimuli to the transcriptional machinery in the nucleus in mammalian cells by virtue of their ability to phosphorylate and regulate the activity of various transcription factors. It was recently found that the changes in activity of MAPKs occurred during ischemia/reperfusion, but the biological significance of the changes was still controversial.
