Abstract:While the suprachiasmatic nucleus (SCN) controls 24-hour rhythms in breathing including minute ventilation (VE), the mechanisms by which the SCN drives these daily changes are not well-understood. Moreover, the extent to which the circadian clock regulates the ventilatory responses to hypercapnia and hypoxia (i.e., the ventilatory chemoreflex), is unknown. We hypothesized that the SCN regulates daily breathing and chemoreflex rhythms by synchronizing the molecular circadian clock within cells. Here, we used wh… Show more
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