FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2980451315> ?p ?o ?g. }

• W2980451315 endingPage "112686" @default.
• W2980451315 startingPage "112686" @default.
• W2980451315 abstract "The study aimed to quantify a seasonal change in circadian rhythms and its relationship to the social/sleep regimen in humans living in Novosibirsk (55°N), using the naturalistic situation that daylight saving time transitions have been abolished in Russia. Sixty-three volunteers entered the study, and 46 completed it. One group got up at ~6 a.m. and another at ~7 a.m. during their regular 5-workdays schedule. They collected 19 saliva samples at home over 24 h (including 2 samples during the night) on July 3–4, and December 18–19, 2015. Salivary melatonin was measured using radioimmunoassay; the times of evening onset and morning offset were objectively determined using the hockey-stick algorithm and served as circadian phase markers. Nearly all melatonin profiles were normal in summer (high nighttime and low daytime levels), whereas in winter, significantly more – 8 profiles – were abnormal (additional daytime peak, out-of-phase daytime secretion, or absence of secretion), of which 3 (plus 1 for other reasons) could not be included in the further analysis. The duration of melatonin secretion (somewhat less than 12 h) and amount of melatonin secreted did not differ between seasons. In winter compared to summer the melatonin rhythm, on average, significantly phase delayed by half-an-hour, with a tendency for greater inter-individual phase variability. The phase delay was attributable to those subjects who got up at ~7 a.m. (and who were longer sleepers). The melatonin rhythm reflected well the sleep timing difference between the two groups in summer, whereas in winter this coherence was lost. In summary, timing of the circadian system is strictly synchronised in summer by the long light: short dark photoperiod (with sleep as a constituent of the 7 h 10 min dark phase of the cycle), whereas in winter, with the long dark nights (17 h 12 min), an inter-individual phase desynchrony and even abnormal melatonin patterns emerge, despite a constant sleep/social regimen, suggesting that the winter season is unfavourable for circadian status." @default.
• W2980451315 created "2019-10-25" @default.
• W2980451315 creator A5026896398 @default.
• W2980451315 creator A5028292731 @default.
• W2980451315 creator A5074987340 @default.
• W2980451315 creator A5084755784 @default.
• W2980451315 date "2019-12-01" @default.
• W2980451315 modified "2023-10-03" @default.
• W2980451315 title "Summer-winter difference in 24-h melatonin rhythms in subjects on a 5-workdays schedule in Siberia without daylight saving time transitions" @default.
• W2980451315 cites W1972576332 @default.
• W2980451315 cites W1976311248 @default.
• W2980451315 cites W1978560007 @default.
• W2980451315 cites W1988004297 @default.
• W2980451315 cites W1995236626 @default.
• W2980451315 cites W1999165344 @default.
• W2980451315 cites W2008671752 @default.
• W2980451315 cites W2009247952 @default.
• W2980451315 cites W2015819947 @default.
• W2980451315 cites W2023173564 @default.
• W2980451315 cites W2059111620 @default.
• W2980451315 cites W2067703489 @default.
• W2980451315 cites W2077002173 @default.
• W2980451315 cites W2081144114 @default.
• W2980451315 cites W2081321190 @default.
• W2980451315 cites W2094400204 @default.
• W2980451315 cites W2097654472 @default.
• W2980451315 cites W2098641277 @default.
• W2980451315 cites W2105375676 @default.
• W2980451315 cites W2112393246 @default.
• W2980451315 cites W2115795384 @default.
• W2980451315 cites W2122502531 @default.
• W2980451315 cites W2139336305 @default.
• W2980451315 cites W2148317166 @default.
• W2980451315 cites W2151487996 @default.
• W2980451315 cites W2156468292 @default.
• W2980451315 cites W2157680116 @default.
• W2980451315 cites W2170169400 @default.
• W2980451315 cites W24099760 @default.
• W2980451315 cites W2503118740 @default.
• W2980451315 cites W2510526184 @default.
• W2980451315 cites W2961033558 @default.
• W2980451315 cites W4233060373 @default.
• W2980451315 cites W4322701718 @default.
• W2980451315 doi "https://doi.org/10.1016/j.physbeh.2019.112686" @default.
• W2980451315 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31626888" @default.
• W2980451315 hasPublicationYear "2019" @default.
• W2980451315 type Work @default.
• W2980451315 sameAs 2980451315 @default.
• W2980451315 citedByCount "9" @default.
• W2980451315 countsByYear W29804513152020 @default.
• W2980451315 countsByYear W29804513152021 @default.
• W2980451315 countsByYear W29804513152022 @default.
• W2980451315 countsByYear W29804513152023 @default.
• W2980451315 crossrefType "journal-article" @default.
• W2980451315 hasAuthorship W2980451315A5026896398 @default.
• W2980451315 hasAuthorship W2980451315A5028292731 @default.
• W2980451315 hasAuthorship W2980451315A5074987340 @default.
• W2980451315 hasAuthorship W2980451315A5084755784 @default.
• W2980451315 hasConcept C120665830 @default.
• W2980451315 hasConcept C121332964 @default.
• W2980451315 hasConcept C121446783 @default.
• W2980451315 hasConcept C126322002 @default.
• W2980451315 hasConcept C1276947 @default.
• W2980451315 hasConcept C134018914 @default.
• W2980451315 hasConcept C135343436 @default.
• W2980451315 hasConcept C140793950 @default.
• W2980451315 hasConcept C149277555 @default.
• W2980451315 hasConcept C19720800 @default.
• W2980451315 hasConcept C2776476923 @default.
• W2980451315 hasConcept C2777334680 @default.
• W2980451315 hasConcept C2778182776 @default.
• W2980451315 hasConcept C47056694 @default.
• W2980451315 hasConcept C504460877 @default.
• W2980451315 hasConcept C71924100 @default.
• W2980451315 hasConcept C86803240 @default.
• W2980451315 hasConceptScore W2980451315C120665830 @default.
• W2980451315 hasConceptScore W2980451315C121332964 @default.
• W2980451315 hasConceptScore W2980451315C121446783 @default.
• W2980451315 hasConceptScore W2980451315C126322002 @default.
• W2980451315 hasConceptScore W2980451315C1276947 @default.
• W2980451315 hasConceptScore W2980451315C134018914 @default.
• W2980451315 hasConceptScore W2980451315C135343436 @default.
• W2980451315 hasConceptScore W2980451315C140793950 @default.
• W2980451315 hasConceptScore W2980451315C149277555 @default.
• W2980451315 hasConceptScore W2980451315C19720800 @default.
• W2980451315 hasConceptScore W2980451315C2776476923 @default.
• W2980451315 hasConceptScore W2980451315C2777334680 @default.
• W2980451315 hasConceptScore W2980451315C2778182776 @default.
• W2980451315 hasConceptScore W2980451315C47056694 @default.
• W2980451315 hasConceptScore W2980451315C504460877 @default.
• W2980451315 hasConceptScore W2980451315C71924100 @default.
• W2980451315 hasConceptScore W2980451315C86803240 @default.
• W2980451315 hasLocation W29804513151 @default.
• W2980451315 hasLocation W29804513152 @default.
• W2980451315 hasOpenAccess W2980451315 @default.
• W2980451315 hasPrimaryLocation W29804513151 @default.
• W2980451315 hasRelatedWork W2001639868 @default.
• W2980451315 hasRelatedWork W2019724223 @default.

• next