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摘要 为制备表达大肠杆菌胞嘧啶脱氨酶 (cytosinedeaminase ,CD)和单纯疱疹病毒 1 胸苷激酶(herpessimplexvirustype 1thymidinekinase ,TK)双自杀基因的重组腺病毒载体 ,为再狭窄基因治疗的应用奠定基础 ,首先构建了含单、双自杀基因的腺病毒穿梭载体 ,细菌内同源重组法获得重组腺病毒质粒 .脂质体介导下转染 2 93细胞进行包装并大量扩增...
Heavy metal pollution has become a serious health concern in recent years. Dogs are a very good indicator of the pollution load on the environment. They share people`s environment and are exposed to t...
Dogs are a very good indicator of the pollution load on the environment. They share people`s environment and are exposed to the action of the same pollutants. This study was to estimate the heavy meta...
Tilapia zilli were exposed to the same concentration (1 mg/L) of essential (Cu, Zn) and non-essential (Cd, Pb) metals for 10 days so that these metals would accumulate in the liver, gill, brain and mu...
The use of the Coefficient of Difference (CD), which was first suggested some 50 years ago, as a measure of difference of a single character between two populations is not recommended today on grounds...
Concentrations of cadmium, lead, copper, chromium and nickel were determined in the gill, liver and muscle of Cyprinus carpio, Barbus capito and Chondrostoma regium caught at 5 stations on the Seyhan ...

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