Revealing Oft-cited but Unpublished Papers of Colin Pittendrigh and Coworkers.

abstract：:Morningness and eveningness preference, an endogenous component of the circadian clock, is characterized by an interindividual difference in circadian phase and requires of humans a specific timing of behavior. The biological rhythms of morning and evening types are consequently phase shifted with fixed socioeconomic ...

journal_title：Journal of biological rhythms

authors： Taillard J,Philip P,Chastang JF,Diefenbach K,Bioulac B

更新日期：2001-04-01 00:00:00

abstract：:Sex differences in circadian rhythms have been reported with some conflicting results. The timing of sleep and length of time in bed have not been considered, however, in previous such studies. The current study has 3 major aims: (1) replicate previous studies in a large sample of young adults for sex differences in s...

journal_title：Journal of biological rhythms

authors： Van Reen E,Sharkey KM,Roane BM,Barker D,Seifer R,Raffray T,Bond TL,Carskadon MA

更新日期：2013-12-01 00:00:00

abstract：:Most visual system functions, such as opsin gene expression, retinal neural transmission, light perception, and visual sensitivity, display robust day-night rhythms. The rhythms persist in constant lighting conditions, suggesting the involvement of endogenous circadian clocks. While the circadian pacemakers that contr...

journal_title：Journal of biological rhythms

authors： Li L

更新日期：2019-10-01 00:00:00

abstract：:Access to electric light might have shifted the ancestral timing and duration of human sleep. To test this hypothesis, we studied two communities of the historically hunter-gatherer indigenous Toba/Qom in the Argentinean Chaco. These communities share the same ethnic and sociocultural background, but one has free acce...

journal_title：Journal of biological rhythms

authors： de la Iglesia HO,Fernández-Duque E,Golombek DA,Lanza N,Duffy JF,Czeisler CA,Valeggia CR

更新日期：2015-08-01 00:00:00

abstract：:During the first 7 weeks of postnatal life, short day lengths inhibit the onset of puberty in many photoperiodic rodents, but not in Syrian hamsters. In this species, timing of puberty and fecundity are independent of the early postnatal photoperiod. Gestational day length affects postnatal reproductive development in...

journal_title：Journal of biological rhythms

authors： Beery AK,Paul MJ,Routman DM,Zucker I

更新日期：2008-10-01 00:00:00

abstract：:The circadian timing system has three principal elements: the retina, the intergeniculate leaflet (IGL) of the thalamus, and the suprachiasmatic nucleus (SCN). Since the human circadian timing system cannot be studied experimentally, we have used another primate, the macaque monkey, to help provide insight into the or...

journal_title：Journal of biological rhythms

authors： Moore RY

更新日期：1993-01-01 00:00:00

abstract：:The measurement of circulating levels of brain-derived neurotrophic factor (BDNF) has been proposed to be a marker of disease and an indicator of recovery. Thus, knowing the temporal pattern and influence of potential circadian rhythms is important. Although several studies have measured BDNF at different times of day...

journal_title：Journal of biological rhythms

authors： Cain SW,Chang AM,Vlasac I,Tare A,Anderson C,Czeisler CA,Saxena R

更新日期：2017-02-01 00:00:00

abstract：:Transplantation of the fetal suprachiasmatic nucleus (SCN) in arrhythmic SCN-lesioned rats can reinstate circadian drinking rhythms in 40% to 50% of the cases. In the current article, it was investigated whether the failure in the other rats could be due to the absence of a circadian rhythm in the grafted SCN, using a...

journal_title：Journal of biological rhythms

authors： van Esseveldt KE,van der Geest BA,Duindam H,Rietveld WJ,Boer GJ

更新日期：1999-02-01 00:00:00

abstract：:Although pineal "synaptic" ribbons (SR) are frequently examined by means of quantitative electron microscopy, their functional significance remains unclear. The same is true for related structures--"synaptic" spherules (SPH). In the course of such studies, it has been noted that SR counts may differ from laboratory to...

journal_title：Journal of biological rhythms

authors： Karasek M,Lewinski A,Vollrath L

更新日期：1988-04-01 00:00:00

abstract：:At least two major physiological systems are involved in the adaptation of the organism to environmental challenges: the circadian system and the stress reaction. This study addressed the possibility that interindividual differences in stress sensitivity and in the functioning of the circadian system are related. At 2...

journal_title：Journal of biological rhythms

authors： Weibel L,Maccari S,Van Reeth O

更新日期：2002-10-01 00:00:00

abstract：:Daylight saving time (DST) is a source of circadian disruption impinging on millions of people every year. Our aim was to assess modifications, if any, in the number, type, and outcome of Accident & Emergency (A&E) visits/return visits over the DST months. The study included 366,527 visits and 84,380 return visits to ...

journal_title：Journal of biological rhythms

authors： Ferrazzi E,Romualdi C,Ocello M,Frighetto G,Turco M,Vigolo S,Fabris F,Angeli P,Vettore G,Costa R,Montagnese S

更新日期：2018-10-01 00:00:00

abstract：:To determine if a circadian rhythm known to be functionally related to the reproductive axis varies on a circannual basis, we monitored the circadian secretion of melatonin at monthly intervals for 2 years in four ovariectomized, estradiol-implanted ewes held in a constant short-day photoperiod. Prior to the study, ew...

journal_title：Journal of biological rhythms

authors： Thrun LA,Moenter SM,O'Callaghan D,Woodfill CJ,Karsch FJ

更新日期：1995-03-01 00:00:00

abstract：:In mammals, the suprachiasmatic nucleus (SCN) is the central pacemaker organizing circadian rhythms of behavior and physiology. At the cellular level, the mammalian clock consists of autoregulatory feedback loops involving a set of "clock genes," including the Cryptochrome (Cry) genes, Cry1 and Cry2. Experimental evid...

journal_title：Journal of biological rhythms

authors： Evans JA,Pan H,Liu AC,Welsh DK

更新日期：2012-12-01 00:00:00

abstract：:In vertebrates, reproductive output often increases with age. Unlike older birds, first-year photoperiodic birds lack experience with the reproductively stimulatory effects of long day lengths (photostimulation). We examined whether age-related differences in annual reproductive development could be partially attribut...

journal_title：Journal of biological rhythms

authors： Salvante KG,Dawson A,Aldredge RA,Sharp PJ,Sockman KW

更新日期：2013-02-01 00:00:00

abstract：:Activity patterns are the product of interactions between an internal circadian clock and direct responses to photic and nonphotic features of the environment that are said to "mask" the influence of that clock. Evolutionary transitions between nocturnality and diurnality involve changes in mechanisms underlying both ...

journal_title：Journal of biological rhythms

authors： Cohen R,Smale L,Kronfeld-Schor N

更新日期：2010-02-01 00:00:00

abstract：:Testicular growth was monitored in male ferrets subjected to one of the following photoperiodic treatments begun at weaning (8 weeks of age): 8 hr light/day (short days), 18 hr light/day (long days), or short days followed by transition to long days at either 10, 12, or 14 weeks of age. Mean ages to achieve adult test...

journal_title：Journal of biological rhythms

authors： Sisk CL

更新日期：1990-10-01 00:00:00

abstract：:Hibernating animals have been a successful model system for elucidating fundamental properties of many physiological systems. Over the past 50 years, a diverse literature has emerged on the role of the circadian system in control and expression of winter torpor in several orders of birds and mammals. This body of rese...

journal_title：Journal of biological rhythms

authors： Ruby NF

更新日期：2003-08-01 00:00:00

abstract：:A physiologically based mathematical model of a putative sleep-wake regulatory network is used to investigate the transition from typical human sleep patterns to spontaneous internal desynchrony behavior observed under temporal isolation conditions. The model sleep-wake regulatory network describes the neurotransmitte...

journal_title：Journal of biological rhythms

authors： Gleit RD,Diniz Behn CG,Booth V

更新日期：2013-10-01 00:00:00

abstract：:The circadian clock plays an important role in adaptation in time and space by synchronizing changes in physiological, developmental, and behavioral traits of organisms with daily and seasonal changes in their environment. We have studied some features of the circadian activity and clock organization in a northern Dro...

journal_title：Journal of biological rhythms

authors： Kauranen H,Menegazzi P,Costa R,Helfrich-Förster C,Kankainen A,Hoikkala A

更新日期：2012-10-01 00:00:00

abstract：:There is little evidence for the involvement of microRNAs (miRs) in the regulation of circadian rhythms, despite the potential relevance of these elements in the posttranscriptional regulation of the clock machinery. The present work aimed to identify miRs targeting circadian genes through a predictive analysis of con...

journal_title：Journal of biological rhythms

authors： Figueredo Dde S,Barbosa MR,Gitaí DL,de Andrade TG

更新日期：2013-04-01 00:00:00

abstract：:Entrainability of the circadian rhythm of mosquito flight and locomotor activity was investigated by giving a 24-hr temperature cycle (28 degrees C for 16 hr, 23 degrees C for 8 hr) to the free-running rhythm or by shifting the temperature cycle. The phase angle difference between the entrained rhythm and the temperat...

journal_title：Journal of biological rhythms

authors： Chiba Y,Uki M,Kawasaki Y,Matsumoto A,Tomioka K

更新日期：1993-10-01 00:00:00

abstract：:How the cellular elements of the SCN are synchronized to each other is not well understood. We explore circadian oscillations manifest at the level of the cell, the tissue, and the whole animal to better understand intra-SCN synchrony and master clock function of the nucleus. At each level of analysis, responses to va...

journal_title：Journal of biological rhythms

authors： Butler MP,Silver R

更新日期：2009-10-01 00:00:00

abstract：:The circadian rhythm of eclosion activity and its pacemaker were analyzed in a series of latitudinal races of Drosophila auraria ranging from 34.2 degrees to 42.9 degrees N in Japan. The phase of the rhythm (psi EL) to the daily photoperiod (PP) changes as daylength is increased, and the slope of psi EL (PP) changes w...

journal_title：Journal of biological rhythms

authors： Pittendrigh CS,Takamura T

更新日期：1989-07-01 00:00:00

abstract：:The purpose of this study was to determine whether decreased day lengths affect reproduction or the immune system in inbred mice. Irrespective of a nocturnal pineal melatonin rise, the signal for day length information, body and testis weights were the same in various strains 8 weeks after transfer from long to short ...

journal_title：Journal of biological rhythms

authors： Yellon SM,Tran LT

更新日期：2002-02-01 00:00:00

abstract：:Two major approaches have been used to model circadian clocks. Qualitative modeling, used prior to the recent wealth of detailed molecular knowledge, makes general predictions but cannot provide detailed mechanistic insights. The more recent biophysical approach, on the other hand, incorporates the biochemical events ...

journal_title：Journal of biological rhythms

authors： Forger D,Gonze D,Virshup D,Welsh DK

更新日期：2007-06-01 00:00:00

abstract：:We examine theoretical models for circadian oscillations based on transcriptional regulation in Drosophila and Neurospora. For Drosophila, the molecular model is based on the negative feedback exerted on the expression of the per and tim genes by the complex formed between the PER and TIM proteins. For Neurospora, sim...

journal_title：Journal of biological rhythms

authors： Leloup JC,Gonze D,Goldbeter A

更新日期：1999-12-01 00:00:00

abstract：:To date, it is largely unknown which light settings define the optimum to steer alertness and cognitive control during regular daytime working hours. In the current article, we used a multimeasure approach combined with a relatively large sample size ( N = 60) and a large range of intensity levels (20-2000 lux at eye ...

journal_title：Journal of biological rhythms

authors： Smolders KCHJ,Peeters ST,Vogels IMLC,de Kort YAW

更新日期：2018-12-01 00:00:00

abstract：:Social jetlag represents the discrepancy between circadian and social clocks, which is measured as the difference in hours in midpoint of sleep between work days and free days. Previous studies have shown social jetlag to be associated with body mass index (BMI), glycated hemoglobin levels, heart rate, depressive symp...

journal_title：Journal of biological rhythms

authors： Rutters F,Lemmens SG,Adam TC,Bremmer MA,Elders PJ,Nijpels G,Dekker JM

更新日期：2014-10-01 00:00:00

abstract：:The mammalian endogenous circadian clock, the suprachiasmatic nuclei, receives environmental inputs, namely the light-dark cycle, through photopigments located in the eye and from melanopsin-expressing retinal ganglion cells. The authors investigated the influence of light wavelength and intensity on the synchronizati...

journal_title：Journal of biological rhythms

authors： Perret M,Gomez D,Barbosa A,Aujard F,Théry M

更新日期：2010-06-01 00:00:00

abstract：:The safety and efficacy of chemotherapeutics can vary as a function of the time of their delivery during the day. This study aimed to improve the treatment of glioblastoma (GBM), the most common brain cancer, by testing whether the efficacy of the DNA alkylator temozolomide (TMZ) varies with the time of its administra...

journal_title：Journal of biological rhythms

authors： Slat EA,Sponagel J,Marpegan L,Simon T,Kfoury N,Kim A,Binz A,Herzog ED,Rubin JB

更新日期：2017-04-01 00:00:00