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Photoperiod regulation of neuron death in the adult canary

✍ Scribed by Kirn, John R. ;Schwabl, Hubert

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 164 KB
Volume: 33
Category: Article
ISSN: 0022-3034
DOI: 10.1002/(sici)1097-4695(199709)33:3<223::aid-neu2>3.0.co;2-3

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✦ Synopsis

The avian brain undergoes natumagnitude of cell death. Our results suggest that neurally occurring cell death and neuronal replacement ronal death in adult male canaries is regulated by in adulthood. Little is known about how neuron surseasonal changes in photoperiod, and that this occurs vival in adult birds is regulated. However, previous independent of chronic changes in gonadal steroid work suggests that this process is open to environmenhormone levels. Day length may serve as a predictive tal control. We now report that a reduction in day environmental cue to time cell death in accordance length from springlike to fall-like conditions can drawith seasonal reproduction. ᭧ 1997 John Wiley & Sons, matically increase cell death in adult male canaries.

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