制药废水中普遍含有的镉,即使低剂量环境暴露即可引起肾功能损伤、骨矿密度降低、钙排泄增加及生殖毒性,Cd2+对生态环境的恶化已经引起了世界各国的普遍重视。试验首先获得了镉离子对水丝蚓24 h LC50的理论值为0.471 mg/L,在0.415~0.535...制药废水中普遍含有的镉,即使低剂量环境暴露即可引起肾功能损伤、骨矿密度降低、钙排泄增加及生殖毒性,Cd2+对生态环境的恶化已经引起了世界各国的普遍重视。试验首先获得了镉离子对水丝蚓24 h LC50的理论值为0.471 mg/L,在0.415~0.535 mg/L浓度区间选择5个浓度的镉离子处理水丝蚓24 h,检测水丝蚓超氧化物歧化酶(SOD)和过氧化物酶(POD)的变化。结果表明:在不同浓度镉离子胁迫下,水丝蚓SOD和POD活性均发生不同程度的改变,但是两种酶的24 h连续变化趋势相反。说明二者生物学机制不同,在细胞抵抗外来污染物的过程中,可能分别发挥不同的作用。展开更多
As the only source of stem cells, satellite cells play and extraordinary role in the remediation process of skeletal muscle after injury. This paper overviewed the biological characteristic of skeletal muscle satellit...As the only source of stem cells, satellite cells play and extraordinary role in the remediation process of skeletal muscle after injury. This paper overviewed the biological characteristic of skeletal muscle satellite cells and its role in repairing muscle injury, and put forward the prospects of its application in muscle trauma repair.展开更多
文摘As the only source of stem cells, satellite cells play and extraordinary role in the remediation process of skeletal muscle after injury. This paper overviewed the biological characteristic of skeletal muscle satellite cells and its role in repairing muscle injury, and put forward the prospects of its application in muscle trauma repair.
