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Author Higuchi, S.; Lee, S.-I.; Kozaki, T.; Harada, T.; Tanaka, I. url  doi
openurl 
  Title Late circadian phase in adults and children is correlated with use of high color temperature light at home at night Type Journal Article
  Year 2016 Publication Chronobiology International Abbreviated Journal Chronobiol Int  
  Volume (down) 33 Issue 4 Pages 448-452  
  Keywords Children; circadian rhythm; light; melatonin  
  Abstract Light is the strongest synchronizer of human circadian rhythms, and exposure to residential light at night reportedly causes a delay of circadian rhythms. The present study was conducted to investigate the association between color temperature of light at home and circadian phase of salivary melatonin in adults and children. Twenty healthy children (mean age: 9.7 year) and 17 of their parents (mean age: 41.9 years) participated in the experiment. Circadian phase assessments were made with dim light melatonin onset (DLMO). There were large individual variations in DLMO both in adults and children. The average DLMO in adults and in children were 21:50 +/- 1:12 and 20:55 +/- 0:44, respectively. The average illuminance and color temperature of light at eye level were 139.6 +/- 82.7 lx and 3862.0 +/- 965.6 K, respectively. There were significant correlations between color temperature of light and DLMO in adults (r = 0.735, p < 0.01) and children (r = 0.479, p < 0.05), although no significant correlations were found between illuminance level and DLMO. The results suggest that high color temperature light at home might be a cause of the delay of circadian phase in adults and children.  
  Address a Department of Human Science, Faculty of Design , Kyushu University , Fukuoka , Japan  
  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:27010525 Approved no  
  Call Number LoNNe @ kyba @ Serial 1404  
Permanent link to this record
 

 
Author Erren, T.C.; Morfeld, P.; Foster, R.G.; Reiter, R.J.; Gross, J.V.; Westermann, I.K. url  doi
openurl 
  Title Sleep and cancer: Synthesis of experimental data and meta-analyses of cancer incidence among some 1 500 000 study individuals in 13 countries Type Journal Article
  Year 2016 Publication Chronobiology International Abbreviated Journal Chronobiol Int  
  Volume (down) 33 Issue 4 Pages 325-350  
  Keywords Human Health; Cancer; chronodisruption; meta-analyses; napping; sleep and circadian rhythm disruption (SCRD); sleep duration; sleep quality; sleep timing; Circadian Rhythm; sleep; Oncogenesis  
  Abstract Sleep and its impact on physiology and pathophysiology are researched at an accelerating pace and from many different angles. Experiments provide evidence for chronobiologically plausible links between chronodisruption and sleep and circadian rhythm disruption (SCRD), on the one hand, and the development of cancer, on the other. Epidemiological evidence from cancer incidence among some 1 500 000 study individuals in 13 countries regarding associations with sleep duration, napping or “poor sleep” is variable and inconclusive. Combined adjusted relative risks (meta-RRs) for female breast cancer, based on heterogeneous data, were 1.01 (95% CI: 0.97-1.06). Meta-RRs for cancers of the colorectum and of the lung in women and men and for prostate cancer were 1.08 (95% CI: 1.03-1.13), 1.11 (95% CI: 1.00-1.22) and 1.05 (95% CI: 0.83-1.33), respectively. The significantly increased meta-RRs for colorectal cancer, based on homogeneous data, warrant targeted study. However, the paramount epidemiological problem inhibiting valid conclusions about the associations between sleep and cancer is the probable misclassification of the exposures to facets of sleep over time. Regarding the inevitable conclusion that more research is needed to answer How are sleep and cancer linked in humans? we offer eight sets of recommendations for future studies which must take note of the complexity of multidirectional relationships.  
  Address a Institute and Policlinic for Occupational Medicine, Environmental Medicine and Prevention Research , University of Cologne , Cologne , Germany  
  Corporate Author Thesis  
  Publisher Taylor & Francis Place of Publication Editor  
  Language English Summary Language English Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0742-0528 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:27003385 Approved no  
  Call Number IDA @ john @ Serial 1407  
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Author Ben-Attia, M.; Reinberg, A.; Smolensky, M.H.; Gadacha, W.; Khedaier, A.; Sani, M.; Touitou, Y.; Boughamni, N.G. url  doi
openurl 
  Title Blooming rhythms of cactus Cereus peruvianus with nocturnal peak at full moon during seasons of prolonged daytime photoperiod Type Journal Article
  Year 2016 Publication Chronobiology International Abbreviated Journal Chronobiol Int  
  Volume (down) 33 Issue 4 Pages 419-430  
  Keywords Plants; Moonlight  
  Abstract Cereus peruvianus (Peruvian apple cactus) is a large erect and thorny succulent cactus characterized by column-like (cereus [L]: column), that is, candle-shaped, appendages. For three successive years (1100 days), between early April and late November, we studied the flowering patterns of eight cacti growing in public gardens and rural areas of north and central Tunisia, far from nighttime artificial illumination, in relation to natural environmental light, temperature, relative humidity and precipitation parameters. Flower blooming was assessed nightly between 23:00 h and until at least 02:00 h, and additionally around-the-clock at ~1 h intervals for 30 consecutive days during the late summer of each year of study to quantify both nyctohemeral (day-night) and lunar patterns. During the summer months of prolonged daytime photoperiod, flower blooming of C. peruvianus exhibited predictable-in-time variation as “waves” with average period of 29.5 days synchronized by the light of the full moon. The large-sized flower (~16 cm diameter) opens almost exclusively at night, between sunset and sunrise, as a 24 h rhythm during a specific 3-4-day span of the lunar cycle (full moon), with a strong correlation between moon phase and number and proportion of flowers in bloom (ranging from r = +0.59 to +0.91). Black, blue and red cotton sheets were used to filter specific spectral bands of nighttime moonlight from illuminating randomly selected plant appendages as a means to test the hypothesis of a “gating” 24 h rhythm phenomenon of photoreceptors at the bud level. Relative to control conditions (no light filtering), black sheet covering inhibited flower bud induction by 87.5%, red sheet covering by 46.6% and blue sheet covering by 34%, and the respective inhibiting effects on number of flowers in bloom were essentially 100%, ~81% and ~44%. C. peruvianus is a unique example of a terrestrial plant that exhibits a circadian flowering rhythm (peak ~00:00 h) “gated” by 24 h, lunar 29.5-day (bright light of full moon) and annual 365.25-day (prolonged summertime day length) environmental photoperiod cycles.  
  Address e Departement des Sciences de la Vie, Faculte des Sciences de Bizerte , Universite de Carthage , Zarzouna , Tunisie  
  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:27030087 Approved no  
  Call Number LoNNe @ kyba @ Serial 1411  
Permanent link to this record
 

 
Author Stevens, R.G. url  doi
openurl 
  Title Circadian disruption and health: Shift work as a harbinger of the toll taken by electric lighting Type Journal Article
  Year 2016 Publication Chronobiology International Abbreviated Journal Chronobiol Int  
  Volume (down) 33 Issue 6 Pages 589-594  
  Keywords Health  
  Abstract Electric light is one of the signature inventions of human beings. A problem, however, is that electric light can confuse our endogenous circadian rhythmicity. It has now become apparent that circadian biology is fundamental to the functioning and adaptation of almost all life forms. In the modern world, everyone is exposed to electric light during the day and night, and thereby can experience some level of circadian disruption. Perhaps as a canary in the coal mine, study of people whose work hours include nighttime (shift workers) is beginning to yield insights on the adverse health effects of circadian disruption from electric light.  
  Address a UConn Health Center , Farmington , CT , USA  
  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:27088628 Approved no  
  Call Number LoNNe @ kyba @ Serial 1444  
Permanent link to this record
 

 
Author Kyba, C.C.M. url  doi
openurl 
  Title Defense Meteorological Satellite Program data should no longer be used for epidemiological studies Type Journal Article
  Year 2016 Publication Chronobiology International Abbreviated Journal Chronobiology International  
  Volume (down) 33 Issue 8 Pages 943-945  
  Keywords Commentary; Human Health; Remote Sensing  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language 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 Approved no  
  Call Number LoNNe @ kyba @ Serial 1459  
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