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Despite the widespread use of inbred mice in research, little is known about aging of the circadian system in female mice, although interactions between female gonadal hormones and circadian rhythms have been established. We investigated the influence of the estrus cycle on circadian aspects of running-wheel activity and changes in the course of aging in female C57BL/6 and C3H/He mice recorded continuously...
In the present paper we study circadian rhythm variation of alpha1-adrenoceptors (α 1 ARs) and beta-adrenoceptors (βARs) characteristics during aging. Experiments have been performed on mice's whole brain cortex, heart and submandibular glands, which have physiologically relevant regulatory functions at different ages. We used 36 young (4 months) and 36 old (26 months) mice; six animals from...
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