Day-night rhythm in plasma melatonin in a mammal lacking a distinct pineal gland, the nine-banded armadillo
作者： Henry J. Harlow , John A. Phillips , Charles L. Ralph
DOI: 10.1016/0016-6480(81)90106-4
关键词: photoperiodism 、 Pineal gland 、 Circadian rhythm 、 Biology 、 Radioimmunoassay 、 Endocrinology 、 Armadillo 、 Internal medicine 、 Rhythm 、 Dasypus novemcinctus 、 Melatonin
摘要: Abstract A melatonin radioimmunoassay was validated for plasma in the nine-banded armadillo ( Dasypus novemcinctus ). distinct diurnal rhythm of circulating found. This coupled to photoperiod, with scotophase levels being approximately three times greater than photophase levels. The could be entrained a and appeared activity, body temperature, metabolic rhythms. In addition, maintained under constant low-intensity illumination. Because this species naturally lacks pineal gland, it is suggested that produced by one or more extrapineal sources.
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