ALPHA-AMYLASE CIRCADIAN-RHYTHM OF YOUNG-RAT PAROTID-GLAND - AN ENDOGENOUS RHYTHM WITH MATERNAL COORDINATION

被引：13

作者：

BELLAVIA, SL ^{[1
]}

SANZ, EG ^{[1
]}

SERENO, R ^{[1
]}

VERMOUTH, NT ^{[1
]}

机构：

[1] NATL UNIV CORDOBA,FAC CIENCIAS AGROPECUARIAS,DEPT RECURSOS NAT,RA-5000 CORDOBA,ARGENTINA

来源：

ARCHIVES OF ORAL BIOLOGY | 1992年 / 37卷 / 05期

关键词：

CIRCADIAN RHYTHM; ALPHA-AMYLASE; PAROTID GLAND;

D O I：

10.1016/0003-9969(92)90028-7

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

The circadian rhythm of alpha-amylase, E.C. 3.2.1.1. (alpha-1,4-glucan-4-glucanohydrolase) in the parotid glands of 25-day-old rats were studied under different experimental designs (fasting, reversed photoperiod, constant lighting conditions and treatment with reserpine and alpha-methyl-p-tyrosine). The rhythm of fasted rats did not change. There were modifications in the rhythm of rats submitted to a reversed photoperiod or treated with reserpine or alpha-methyl-p-tyrosine. The rhythm was present, with changes in the acrophase, in parotids of rats kept during their gestation and postnatal life in constant light or dark. Results suggest that the circadian rhythm of alpha-amylase in parotid gland of young rats is endogenous, synchronized by the photoperiod, and with maternal coordination.

引用

页码：429 / 433

页数：5

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