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  • Title: [Desynchronization of the circadian rhythm of plasma insulin levels and feeding schedules after inversion of periodicity].
    Author: Weinert D, Ulrich FE, Schuh J.
    Journal: Biomed Biochim Acta; 1986; 45(9):1135-40. PubMed ID: 3545190.
    Abstract:
    In experiments with laboratory mice a desynchronisation of daily rhythms in plasma insulin concentration and feeding after inversion of the light-dark periodicity is documented. Whereas the feeding rhythm follows the exogenous Zeitgeber (differences concern above all the quantity of food which decrease after inversion), the acrophase of the hormone rhythm is stable in relation to astronomic time. The daily mean, however, is reduced and the main maximum is split into three components. The results support the hypothesis that rhythms of the two investigated parameters are generated by separate oscillators.
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