首页   按字顺浏览 期刊浏览 卷期浏览 Circadian rhythm of plasma growth hormone levels in the pigeon**
Circadian rhythm of plasma growth hormone levels in the pigeon**

 

作者: B.A. McKeown,   T.M. John,   J.C. George,  

 

期刊: Journal of Interdisciplinary Cycle Research  （Taylor Available online 1973）
卷期: Volume 4, issue 3  

页码: 221-227

 

ISSN:0022-1945

 

年代: 1973

 

DOI:10.1080/09291017309359384

 

出版商: Taylor & Francis Group

 

关键词: Diurnal changes;free fatty acid levels;lipid mobilization;muscular activity;plasma growth hormone;starvatio

 

数据来源: Taylor

 

摘要:

The plasma growth hormone (GH) level in the pigeon was assessed by radioimmunoassay during a 24‐hr period of 12‐hr light (photophase) and 12‐hr dark (scotophase). The peak GH level was found to be at 06.00 hr (toward the end of the scotophase or onset of the photophase). Thereafter it dropped to its lowest at 18.00 hr (end of the photophase), thus revealing the existence of a circadian rhythm. This rhythm in plasma GH concentration has been correlated with a corresponding free fatty acid rhythm in the pigeon.

 

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