James C Walton, O Hecmarie Meléndez-Fernández, A Courtney DeVries, Paul D Chantler, Randy J Nelson
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引用次数: 0
Abstract
Introduction: Endogenous biological timing mechanisms are fundamental aspects of living cells, tissues, and organisms. Virtually every aspect of physiology and behavior is mediated by self-sustaining circadian clocks, which depend on light to synchronize with the external daily environment. However, exposure to artificial light at night (ALAN) can impair temporal adaptations and affect health and disease.
Methods: During a study of the effects of long-term ALAN exposure on cardiovascular function, we serendipitously detected ultradian rhythms in muscarinic receptor dependent relaxation of isolated aortic tissue.
Results and conclusion: Mice exposed to dark nights displayed an ultradian pattern of maximum endothelial-dependent relaxation that was antiphase between the sexes. Rhythmic patterns of relaxation were abolished by ALAN exposure in both sexes suggesting that ALAN exposure can affect ultradian rhythms in physiology and behavior.
期刊介绍:
The ''Journal of Vascular Research'' publishes original articles and reviews of scientific excellence in vascular and microvascular biology, physiology and pathophysiology. The scope of the journal covers a broad spectrum of vascular and lymphatic research, including vascular structure, vascular function, haemodynamics, mechanics, cell signalling, intercellular communication, growth and differentiation. JVR''s ''Vascular Update'' series regularly presents state-of-the-art reviews on hot topics in vascular biology. Manuscript processing times are, consistent with stringent review, kept as short as possible due to electronic submission. All articles are published online first, ensuring rapid publication. The ''Journal of Vascular Research'' is the official journal of the European Society for Microcirculation. A biennial prize is awarded to the authors of the best paper published in the journal over the previous two years, thus encouraging young scientists working in the exciting field of vascular biology to publish their findings.