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Mason, I.C.; Boubekri, M.; Figueiro, M.G.; Hasler, B.P.; Hattar, S.; Hill, S.M.; Nelson, R.J.; Sharkey, K.M.; Wright, K.P.; Boyd, W.A.; Brown, M.K.; Laposky, A.D.; Twery, M.J.; Zee, P.C. |
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Title |
Circadian Health and Light: A Report on the National Heart, Lung, and Blood Institute's Workshop |
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Journal Article |
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Year |
2018 |
Publication |
Journal of Biological Rhythms |
Abbreviated Journal |
J Biol Rhythms |
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Volume |
33 |
Issue |
5 |
Pages |
451-457 |
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Keywords |
Human Health |
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Abstract  |
Despite the omnipresence of artificial and natural light exposure, there exists little guidance in the United States and elsewhere on light exposure in terms of timing, intensity, spectrum, and other light characteristics known to affect human health, performance, and well-being; in parallel, there is little information regarding the quantity and characteristics of light exposure that people receive. To address this, the National Center on Sleep Disorders Research, in the Division of Lung Diseases, National Heart, Lung, and Blood Institute, held a workshop in August 2016 on circadian health and light. Workshop participants discussed scientific research advances on the effects of light on human physiology, identified remaining knowledge gaps in these research areas, and articulated opportunities to use appropriate lighting to protect and improve circadian-dependent health. Based on this workshop, participants put forth the following strategic intent, objectives, and strategies to guide discovery, measurement, education, and implementation of the appropriate use of light to achieve, promote, and maintain circadian health in modern society. |
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Center for Circadian and Sleep Medicine, Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, Illinois |
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0748-7304 |
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PMID:30033850 |
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Call Number |
GFZ @ kyba @ |
Serial |
1975 |
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Author |
Yates, J. |
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Title |
Perspective: The Long-Term Effects of Light Exposure on Establishment of Newborn Circadian Rhythm |
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Journal Article |
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Year |
2018 |
Publication |
Journal of Clinical Sleep Medicine |
Abbreviated Journal |
Jcsm |
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Volume |
14 |
Issue |
10 |
Pages |
1829-1830 |
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Keywords |
Commentary; Human Health |
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Abstract |
Development of newborns continues postnatally. Evidence has accumulated on the early life programming effects of light exposure on the maturing visual axis and the developing circadian rhythm. Consideration of the effects of light at night and insufficient light during the day should occur when giving anticipatory guidance in the care of newborn infants. Long-term health consequences of light imprinting may occur with inappropriate light-dark environments during the newborn period. |
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1550-9389 |
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GFZ @ kyba @ |
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2032 |
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Author |
Mammola, S.; Isaia, M.; Demonte, D.; Triolo, P.; Nervo, M. |
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Title |
Artificial lighting triggers the presence of urban spiders and their webs on historical buildings |
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Journal Article |
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Year |
2018 |
Publication |
Landscape and Urban Planning |
Abbreviated Journal |
Landscape and Urban Planning |
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180 |
Issue |
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Pages |
187-194 |
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Keywords |
Animals; Lighting |
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Abstract |
Different spider species living in the urban environment spin their webs on building facades. Due to air pollution, web aggregations entrap dirt particles over time, assuming a brownish-greyish colouration and thus determining an aesthetic impact on buildings and street furniture. In Europe, the most common species causing such an aesthetic nuisance is Brigittea civica (Lucas) (Dictynidae). In spite of the socio-economical relevance of the problem, the ecological factors driving the proliferation of this species in the urban environment are poorly described and the effectiveness of potential cleaning activities has never been discussed in scientific literature. Over one year, we studied the environmental drivers of B. civica webs in the arcades of the historical down-town district of Turin (NW-Italy). We selected a number of sampling plots on arcade ceilings and we estimated the density of B. civica webs by means of digital image analysis. In parallel, we collected information on a number of potential explanatory variables driving the arcade colonization, namely artificial lighting at night, substrate temperature, distance from the main artificial light sources and distance from the river. Regression analysis showed that the coverage of spider webs increased significantly at plots with higher light intensity, with a major effect related to the presence of historical lampposts with incandescent lamps rather than halogen lamps. We also detected a seasonal variation in the web coverage, with significant higher values in summer. Stemming from our results, we are able to suggest good practices for the containment of this phenomenon. |
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0169-2046 |
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GFZ @ kyba @ |
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2002 |
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Studer, P.; Brucker, J.M.; Haag, C.; Van Doren, J.; Moll, G.H.; Heinrich, H.; Kratz, O. |
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Title |
Effects of blue- and red-enriched light on attention and sleep in typically developing adolescents |
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Journal Article |
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Year |
2018 |
Publication |
Physiology & Behavior |
Abbreviated Journal |
Physiol Behav |
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Volume |
199 |
Issue |
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Pages |
11-19 |
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Keywords |
Human Health |
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Abstract |
Differential effects of blue- and red-enriched light on attention and sleep have been primarily described in adults. In our cross-over study in typically developing adolescents (11-17years old), we found attention enhancing effects of blue- compared to red-enriched light in the morning (high intensity of ca. 1000lx, short duration: <1h) in two of three attention tasks: e.g. better performance in math tests and reduced reaction time variability in a computerized attention test. In our pilot study, actigraphy measures of sleep indicated slight benefits for red- compared to blue-enriched light in the evening: tendencies toward a lower number of phases with movement activity after sleep onset in the complete sample and shorter sleep onset latency in a subgroup with later evening exposure times. These findings point to the relevance of light concepts regarding attention and sleep in typically developing adolescents. Such concepts should be developed and tested further in attention demanding contexts (at school) and for therapeutic purposes in adolescents with impaired attention or impaired circadian rhythms. |
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Department of Child and Adolescent Mental Health, University Hospital Erlangen, Friedrich-Alexander-Universitat Erlangen-Nurnberg (FAU), Erlangen, Germany. Electronic address: oliver.kratz@uk-erlangen.de |
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0031-9384 |
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Notes |
PMID:30381244 |
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no |
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Call Number |
GFZ @ kyba @ |
Serial |
2142 |
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Author |
Maroni, M.J.; Capri, K.M.; Cushman, A.V.; Monteiro De Pina, I.K.; Chasse, M.H.; Seggio, J.A. |
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Title |
Constant light alters serum hormone levels related to thyroid function in male CD-1 mice |
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Journal Article |
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Year |
2018 |
Publication |
Chronobiology International |
Abbreviated Journal |
Chronobiol Int |
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Volume |
35 |
Issue |
10 |
Pages |
1456-1463 |
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Keywords |
Animals |
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Abstract |
Disruptions to the circadian rhythm can lead to altered metabolism. Modification of thyroid function may be a reason why circadian misalignment may contribute to future metabolic disorders. We investigated whether circadian disruption through constant light (LL) can lead to variations in hormone levels associated with thyroid function. Mice were exposed to LL or a 12:12 Light:Dark (LD) cycle for 6 weeks; then glucose tolerance and thyroid hormone levels were measured at ZT 6 and ZT 18. There was day/night variation in glucose tolerance, but LL had no effect. LL reduced TSH, increased fT4, and abolished day/night variation in fT3 and leptin. These findings illustrate that LL alters thyroid-related hormones, providing evidence of a link between circadian disruption and thyroid function. |
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a Department of Biological Sciences , Bridgewater State University , Bridgewater , MA , USA |
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ISSN |
0742-0528 |
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Notes |
PMID:29953263 |
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Call Number |
GFZ @ kyba @ |
Serial |
1958 |
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