Abstract
To study the function of lipoprotein lipase (LPL)with Asn291 Ser and Lys312insC compound mutation in LPL gene knockout heterozygous (LPL~(+/-)) mice. The results showed that triglycerides, free fatty acids, blood glucose and weight of LPL~(+/-) mice were higher than those of c57 mice(P<0. 05). The expressions of LPL Mrna and LPL protein of LPL~(+/-) group were lower than those of c57 group(P<0.05). The injection of Asn291Ser +Lys312insC protein caused little change of the lipid mass and LPL activity,but the injection of normal LPL protein induced obvious decrease of lipid mass and increase of the LPL activity. Key words: Lipoprotein lipase; Gene knockout; Compound mutation
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