牛乳汁中葡萄糖转运基因的表达  

Expression of the glucose transporter genes in milk

作　　者：李平[1] 李宏基[1] 王静[1] 闫威[1] 谢佳喜[1] 王月影[1] 

机构地区：[1]河南农业大学动物生理生化实验室,郑州450002

出　　处：《中国乳品工业》2009年第3期4-7,共4页China Dairy Industry

基　　金："十一五"国家科技攻关计划子课题(2006BAD04A03-10);河南省科技攻关项目(072102140002)

摘　　要：以牛初乳和末乳为研究对象,利用乳汁体细胞的分子生物学技术平台,对牛乳汁中葡萄糖转运基因的表达进行研究。结果表明,初乳和末乳中均有GAT-(1,4)和SGLT-1表达,且初乳中的表达高于末乳;GLUT-1只在末乳中有表达,初乳中不表达。提示乳腺细胞葡萄糖的摄取方式与泌乳阶段相关,初乳期乳腺合成乳糖的作用高于末乳期乳腺。Using molecular biology platform of the milk somatic cells to study the expression of the glucose transporter genes in colostrum milk and ending cowmilk. The results showed that the GAT-（1,4） and SGLT-1 gene were expressed in colostrum and ending cowmilk, however the degree in the colostrums was more than that in the ending cowmilk, and the GLUT-1 gene was only expressed in the ending cowmilk. The results suggested that the uptaking mode of glucose in mammary gland cell was related to the lactation period. The lactase synthesis of mammary gland during the period of colostrums was higher than that during the period of ending milk.

关 键 词：葡萄糖转运基因 乳汁体细胞 初乳 末乳 

分 类 号：TS252.1[轻工技术与工程—农产品加工及贮藏工程]