ISSN:
1432-119X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Summary Changes in α-amylase (α-1,4-glucan-4-glucanohydrolase, EC 3.2.1.1) of parotid gland were investigated during postnatal development of the rat. Modifications in amylase activity after birth allow the distinction of three stages which can be correlated with the morphologic development of the parotid gland. Significant sexual differences in the evolution of α-amylase activity were found. During the first stage (from birth to the 20th day) there is a higher increase in females, while males have a more pronounced increment in the second stage (from the 20th to the 30th day). By means of gel electrophoresis of parotid extracts, four molecular forms of amylase can be separated. The slowest migrating band (Form 1) is not detected at the initial stage.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00592576
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