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Author (up) Cornean, R.E.; Margescu, M.; Simionescu, B.
Title Disruption of the Cyrcadian System and Obesity Type Journal Article
Year 2015 Publication Jurnalul Pediatrului Abbreviated Journal Jurnalul Pediatrului
Volume XVIII Issue Supplement 3 Pages 38-42
Keywords Human Health; sleep deprivation; circadian rhythms; *Chronobiology Disorders; chronodisruption; obesity
Abstract Disruption of the cyrcadian system is a relatively new concept incriminated as being responsible for obesity, cardiovascular involvement, cognitive impairment, premature aging and last but not least, cancer. Because obesity is undoubtedly assimilated today to the medical conditions related to the disruption of the normal chronobiology, this paper presents the pivotal role of chronodisruption in the neuroendocrine control of appetite among these patients.
Address University of Medicine and Pharmacy "Iuliu Hatieganu” Cluj – Napoca, Romania; recornean(as)yahoo.com
Corporate Author Thesis
Publisher Romanian Society of Pediatric Surgery Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2065-4855 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number IDA @ john @ Serial 1349
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Author (up) Kantermann, T.; Roenneberg, T.
Title Is light-at-night a health risk factor or a health risk predictor? Type Journal Article
Year 2009 Publication Chronobiology International Abbreviated Journal Chronobiol Int
Volume 26 Issue 6 Pages 1069-1074
Keywords *Chronobiology Disorders; Circadian Rhythm; Environmental Exposure; Humans; *Light; Neoplasms; Risk Factors
Abstract In 2007, the IARC (WHO) has classified “shift-work that involves circadian disruption” as potentially carcinogenic. Ample evidence leaves no doubt that shift-work is detrimental for health, but the mechanisms behind this effect are not well understood. The hormone melatonin is often considered to be a causal link between night shift and tumor development. The underlying “light-at-night” (LAN) hypothesis is based on the following chain of arguments: melatonin is a hormone produced under the control of the circadian clock at night, and its synthesis can be suppressed by light; as an indolamine, it potentially acts as a scavenger of oxygen radicals, which in turn can damage DNA, which in turn can cause cancer. Although there is no experimental evidence that LAN is at the basis of increased cancer rates in shiftworkers, the scenario “light at night can cause cancer” influences research, medicine, the lighting industry and (via the media) also the general public, well beyond shiftwork. It is even suggested that baby-lights, TVs, computers, streetlights, moonlight, emergency lights, or any so-called “light pollution” by urban developments cause cancer via the mechanisms proposed by the LAN hypothesis. Our commentary addresses the growing concern surrounding light pollution. We revisit the arguments of the LAN theory and put them into perspective regarding circadian physiology, physical likelihood (e.g., what intensities reach the retina), and potential risks, specifically in non-shiftworkers.
Address Institute for Medical Psychology, University of Munich LMU, Munich, Germany
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0742-0528 ISBN Medium
Area Expedition Conference
Notes PMID:19731106 Approved no
Call Number IDA @ john @ Serial 134
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