Failure to respond to endogenous or exogenous melatonin may cause nonphotoresponsiveness in Harlan Sprague Dawley rats

<p>Abstract</p> <p>Background</p> <p>Responsiveness to changing photoperiods from summer to winter seasons is an important but variable physiological trait in most temperate-zone mammals. Variation may be due to disorders of melatonin secretion or excretion, or to diffe...

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Bibliographic Details
Main Authors: Avigdor Mauricio, Lorincz Annaka M, Galvez M Eric, Kruse Julie, Price Matthew, Heideman Paul D
Format: Article
Language:English
Published: Ubiquity Press 2005-09-01
Series:Journal of Circadian Rhythms
Online Access:http://www.jcircadianrhythms.com/content/3/1/12