Tag

Circadian Clock
by Elise McGlashan, PhD & Parisa Vidafar, PhD on November 5, 2019 in Clocks in the Spotlight Image credit: Olivia Walch (Twitter: @OliviaWalch; website: www.oliviawalch.com)  Humans evolved in an environment with only very bright (sun) or very dim (moon or fire) sources of light. Today, artificial lighting enables us to spend hours per day at intermediate light levels. Our recent study shows...
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PNAS June 11, 2019 116 (24) 12019-12024; first published May 28, 2019 https://doi.org/10.1073/pnas.1901824116 Significance: Electric lighting has fundamentally altered how the human circadian clock synchronizes to the day/night cycle. Exposure to light after dusk is pervasive in the modern world. We examined group-level sensitivity of the circadian system to evening light and the degree to which sensitivity varies between individuals. We...
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Pflugers Arch. 2018 Feb;470(2):227-239. doi: 10.1007/s00424-017-2103-y. Epub 2018 Jan 4. Life on earth is shaped by the 24-h rotation of our planet around its axes. To adapt behavior and physiology to the concurring profound but highly predictable changes, endogenous circadian clocks have evolved that drive 24-h rhythms in invertebrate and vertebrate species. At the molecular level,...
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The Circadian Clock, Transcriptional Feedback and the Regulation of Gene Expression. The 2017 Nobel Lectures in Physiology or Medicine were held on 7 December at the Aula Medica, Karolinska Institutet.
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Jukka Juutilainen, Mikko Herrala, Jukka Luukkonen, Jonne Naarala, P. J. Hore Published 23 May 2018. http://rspb.royalsocietypublishing.org/content/285/1879/20180590 Abstract Extremely low-frequency (ELF) magnetic fields have been classified as possibly carcinogenic, mainly based on rather consistent epidemiological findings suggesting a link between childhood leukaemia and 50–60 Hz magnetic fields from power lines. However, causality is not the only...
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