Increase of proteolytic activity and synthetic capacity of the pancreas in snakes after feeding
Increase of proteolytic activity and synthetic capacity of the pancreas in snakes after feeding
复制标题
蛇进食后胰腺的蛋白水解活性和合成能力增加
DOI：
10.1016/0300-9629(75)90326-6
复制
发表时间：
1975
期刊：
影响因子：
--
通讯作者：
A. Bdolah
中科院分区：
文献类型：
--
作者：
Eitan Alcon;A. Bdolah
水蛇(Natrix Tessellata)摄食1个月后，胰腺匀浆中的胰凝乳蛋白酶、羧基肽酶A和弹性淀粉酶活性是未摄食的水蛇的3倍。喂食2周后，它们的活动量降至正常的未喂养值。这两种毒蛇的取值模式是相似的。水蛇体内注射~(14)C标记的氨基酸后4h，摄食后24小时胰腺蛋白的比放射性是未摄食蛇的7倍。结论：长期饥饿的蛇，餐后消化酶的合成加快。
The activities of chymotrypsin, carboxypeptidase A and elastase in pancreas homogenates of water snakes (Natrix tessellata) 24 h after a prey was swallowed were 3 times those of snakes not fed for 1 month. Their activity fell to normal unfed values 2 weeks after feeding. Pattern of values was similar for Vipera palaestinae and V. ammodytes. In the water snake the specific radioactivity of pancreatic proteins 4 h after an intraperitoneal injection of amino acids labelled with 14C at 24 h after feeding was 7 times that of unfed snakes. It is concluded that in snakes which have been starved for long periods the synthesis of digestive enzymes is accelerated after meals.