新生羔羊肠道刷状缘、溶酶体酶及免疫球蛋白的吸收

Intestinal brush border and lysosomal enzymes and immunoglobulin absorption in the newly-born lamb.

作者信息

Healy P J

出版信息

Aust J Exp Biol Med Sci. 1977 Jun;55(3):327-37. doi: 10.1038/icb.1977.27.

DOI:10.1038/icb.1977.27

Abstract

Activities of the brush border enzymes alkaline phosphates, leucine aminopeptidase and lactase and the lysosomal enzymes alpha-mannosidase and beta-N-acetylglucosaminidase increased in the serum of newly-born lambs fed colostrum. Feeding lipid and protein components of colostrum and bovine serum resulted in enzyme responses similar to those observed after feeding colostrum. Activities of each of the enzymes increased in mesenteric lymph collected from newly-born lambs when immunoglobulins were being absorbed from the jejunum and ileum.

摘要

给新生羔羊喂食初乳后，其血清中刷状缘酶（碱性磷酸酶、亮氨酸氨肽酶和乳糖酶）以及溶酶体酶（α-甘露糖苷酶和β-N-乙酰氨基葡萄糖苷酶）的活性增强。给新生羔羊喂食初乳、初乳中的脂质和蛋白质成分以及牛血清后，酶反应与喂食初乳后观察到的反应相似。当免疫球蛋白从小肠空肠和回肠被吸收时，从新生羔羊收集的肠系膜淋巴中，每种酶的活性都有所增加。