Increase of proteolytic activity and synthetic capacity of the pancreas in snakes after feeding

Eitan Alcon*, Avner Bdolah

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

1. 1. The specific activities of chymotrypsin, carboxypeptidase A and elastase in pancreas homogenates of water snakes (Natrix tessellata) 24 hr after swallowing a prey are threefold those of snakes unfed for 1 month. Two weeks after feeding, the activity of these enzymes decreases to the fasting level. A similar phenomenon was found in Vipera palaestinae and V. ammodytes. 2. 2. In the water snake, the specific radioactivity of pancreatic proteins 4 hr after an intraperitoneal injection of l4C-amino acids at 24 hr after feeding was sevenfold that of unfed snakes. 3. 3. It is concluded that in snakes which have been starved for long periods of time the synthesis of digestive enzymes is accelerated after meals.

Original languageEnglish
Pages (from-to)627-631
Number of pages5
JournalComparative Biochemistry and Physiology -- Part A: Physiology
Volume50
Issue number3
DOIs
StatePublished - 1 Mar 1975

Keywords

  • Natrix
  • Pancreas
  • Vipera
  • carboxypeptidase A
  • chymotrypsin
  • digestive enzymes
  • elastase
  • feeding
  • snake

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