目的:在心脏特异的骨形态形成蛋白受体IA(the bone morphogenetic protein receptor IA,ALK3)基因敲除小鼠模型中,纯合子的心脏特异ALK3基因敲除的小鼠死于胚胎中期,同时伴有室间隔缺损。用基因芯片(microarray)法筛选了ALK3下游基因,...目的:在心脏特异的骨形态形成蛋白受体IA(the bone morphogenetic protein receptor IA,ALK3)基因敲除小鼠模型中,纯合子的心脏特异ALK3基因敲除的小鼠死于胚胎中期,同时伴有室间隔缺损。用基因芯片(microarray)法筛选了ALK3下游基因,并获得下游候选基因(转录因子Pax-8)。为了进一步明确Pax-8基因在胚胎心脏发育中的角色,Pax-8基因在小鼠被系统敲除。方法:运用实时荧光定量RT-PCR法检测Pax-8基因在小鼠胚胎中的表达情况。运用原位杂交法显示Pax-8基因在小鼠胚胎心脏中的表达部位。TUNEL法检测心肌细胞的凋亡情况,电镜下观察Pax-8基因敲除的小鼠心脏组织发育的病理学异常。结果:正常胚胎小鼠9.5、10.5、11.5、12.5以及13.5d的Pax-8基因的表达水平以10.5d表达最高。胚胎切片的原位杂交显示:转录因子Pax-8表达在13.5d的α-MHCCre+/-,ALK3F/+小鼠整个心脏中。Pax-8基因敲除的小鼠心脏表现出形态改变(心脏呈球形,左心室壁肥厚,室间隔增厚,左室乳头肌肥大),左心室壁和室间隔心肌组织细胞凋亡率明显增高,同时线粒体体积较对照组明显缩小并且数量增多。结论:Pax-8基因是心脏较特异的参与心脏正常发育的ALK3下游基因,并与心肌细胞凋亡有关。展开更多
The abdomen-rubbing qigong exercise was first developed by Fang Kai, a Xin'an medical practitioner. It's an essential part of Xin'an health preservation works. This health preservation method integrates massage wit...The abdomen-rubbing qigong exercise was first developed by Fang Kai, a Xin'an medical practitioner. It's an essential part of Xin'an health preservation works. This health preservation method integrates massage with Daoyin and integrates meridian theory with Zangxiang theory. It's safe, simple and has no side effects. Practice of this qigong exercise can protect the spleen and stomach, tonify qi and essence, harmonize Ying-Nutrients and Wei-Defense, unblock meridians and circulate qi. This paper aims to summarize and promote this exercise.展开更多
文摘目的:在心脏特异的骨形态形成蛋白受体IA(the bone morphogenetic protein receptor IA,ALK3)基因敲除小鼠模型中,纯合子的心脏特异ALK3基因敲除的小鼠死于胚胎中期,同时伴有室间隔缺损。用基因芯片(microarray)法筛选了ALK3下游基因,并获得下游候选基因(转录因子Pax-8)。为了进一步明确Pax-8基因在胚胎心脏发育中的角色,Pax-8基因在小鼠被系统敲除。方法:运用实时荧光定量RT-PCR法检测Pax-8基因在小鼠胚胎中的表达情况。运用原位杂交法显示Pax-8基因在小鼠胚胎心脏中的表达部位。TUNEL法检测心肌细胞的凋亡情况,电镜下观察Pax-8基因敲除的小鼠心脏组织发育的病理学异常。结果:正常胚胎小鼠9.5、10.5、11.5、12.5以及13.5d的Pax-8基因的表达水平以10.5d表达最高。胚胎切片的原位杂交显示:转录因子Pax-8表达在13.5d的α-MHCCre+/-,ALK3F/+小鼠整个心脏中。Pax-8基因敲除的小鼠心脏表现出形态改变(心脏呈球形,左心室壁肥厚,室间隔增厚,左室乳头肌肥大),左心室壁和室间隔心肌组织细胞凋亡率明显增高,同时线粒体体积较对照组明显缩小并且数量增多。结论:Pax-8基因是心脏较特异的参与心脏正常发育的ALK3下游基因,并与心肌细胞凋亡有关。
基金supported by Scientific and Technological Project of Anhui Province(No.1301042218)2014 Undergraduate Innovation and Entrepreneurship Training Project of Anhui University of Chinese Medicine(No.2014049)~~
文摘The abdomen-rubbing qigong exercise was first developed by Fang Kai, a Xin'an medical practitioner. It's an essential part of Xin'an health preservation works. This health preservation method integrates massage with Daoyin and integrates meridian theory with Zangxiang theory. It's safe, simple and has no side effects. Practice of this qigong exercise can protect the spleen and stomach, tonify qi and essence, harmonize Ying-Nutrients and Wei-Defense, unblock meridians and circulate qi. This paper aims to summarize and promote this exercise.