Melatonin entrains free-running blind people according to a physiological dose-response curve.

abstract：:We ask if epidemiological studies into shift work and cancer may be prone to chronobiological errors. We illustrate how ignoring internal time (IT), or chronotype, may lead to what we call IT errors. Errors from truncating relevant external time (ET) information (activities start before and do not end with the shift) ...

journal_title：Chronobiology international

authors： Erren TC,Morfeld P

更新日期：2014-05-01 00:00:00

abstract：:In this study, we aimed to show how age affects hibernation in the Syrian hamster. Experimentally, we used 30 male animals differing in age. The old animals were 20 months of age and the adults were 8 months of age at the end of the test. The young animals were 3 weeks old at the start of testing and 5 months old at t...

journal_title：Chronobiology international

authors： Terada A,Ibuka N

更新日期：2000-09-01 00:00:00

abstract：:In two experiments, triazolam (2.5 and 1.5 mg/animal) failed to significantly enhance the rate of reentrainment of hamsters (Mesocricetus auratus) to an 8-hr advance of their light-dark cycle. Evidently the phase-shifting effects of triazolam are not robust. The animals did not run much in their wheels in response to ...

journal_title：Chronobiology international

authors： Mrosovsky N,Salmon PA

更新日期：1990-01-01 00:00:00

abstract：:Dysregulation of the system of nitric oxide (NO)-cyclic 3',5'-guanosine monophosphate (cGMP) might be involved in the development of hypertension in transgenic hypertensive TGR(mREN2)27 (TGR) rats. The present study was performed to determine possible differences in the day-night pattern and the urinary excretion rate...

journal_title：Chronobiology international

authors： Globig S,Witte K,Lemmer B

更新日期：1999-05-01 00:00:00

abstract：:A number of Djungarian hamsters (Phodopus sungorus) of our institute show activity patterns that seem incompatible with proper adjustment to a periodic environment. The activity onset of those animals is continuously delayed, whereas the activity offset is stably coupled to "lights-on", leading to compression of activ...

journal_title：Chronobiology international

authors： Schottner K,Weinert D

更新日期：2010-01-01 00:00:00

abstract：:This study aimed to verify the prevalence and factors associated with excessive daytime sleepiness (EDS) among adolescents. In all, 1.132 people participated. They were aged between 14 and 19 years, of both sexes and they came from a city in southern Brazil. Many socio-demographic variables were collected (sex, age gr...

journal_title：Chronobiology international

authors： Meyer C,Ferrari Junior GJ,Andrade RD,Barbosa DG,da Silva RC,Pelegrini A,Gomes Felden ÉP

更新日期：2019-09-01 00:00:00

abstract：:We analyzed the association between change in work schedule and modifications in nutritional status. We performed a panel study with nursing professionals based on two surveys seven year apart (n = 372). Groups with no change in work schedule, change from daytime to night shift, and change from night to daytime shift ...

journal_title：Chronobiology international

authors： Siqueria K,Griep R,Rotenberg L,Silva-Costa A,Mendes da Fonseca Mde J

更新日期：2016-01-01 00:00:00

abstract：:Nonrestorative sleep (NRS), characterized by a lack of refreshment upon awakening, has received little attention in the sleep literature even though it can occur and cause impairment apart from other sleep difficulties associated with insomnia. The Restorative Sleep Questionnaire (RSQ) is one of the first validated se...

journal_title：Chronobiology international

authors： Tutek J,Emert SE,Dautovich ND,Lichstein KL

更新日期：2016-01-01 00:00:00

abstract：:The degu (Octodon degus) is a diurnal rodent, although phase inversions to nocturnal behavior have been reported under specific laboratory conditions. The reliability of this animal as a diurnal model of sleep therefore requires further characterization of intrinsic circadian pacemaker properties. A phase response cur...

journal_title：Chronobiology international

authors： Morris LG,Tate BA

更新日期：2007-01-01 00:00:00

abstract：:The circadian rhythms of food and water consumption, the number of feeding and drinking episodes, oxygen consumption, carbon dioxide production, respiratory quotient, gross motor activity, and body temperature were measured in male B6C3F1 mice that were fed ad libitum (AL) or fed a caloric-restricted diet (CR). The CR...

journal_title：Chronobiology international

authors： Duffy PH,Feuers RJ,Hart RW

更新日期：1990-01-01 00:00:00

abstract：:The circadian clock regulates many cellular processes, notably including the cell cycle, metabolism and aging. Mitochondria play essential roles in metabolism and are the major sites of reactive oxygen species (ROS) production in the cell. The clock regulates mitochondrial functions by driving daily changes in NAD(+) ...

journal_title：Chronobiology international

authors： Gong C,Li C,Qi X,Song Z,Wu J,Hughes ME,Li X

更新日期：2015-01-01 00:00:00

abstract：OBJECTIVE:Morning stiffness and plasma cytokine levels in rheumatoid arthritis (RA) patients exhibit 24-hour variations. Tumor necrosis factor-α (TNF-α) plays a central role in RA clinical conditions, including the invasion of inflammatory cells, destruction of cartilage, systemic inflammatory response and its levels s...

journal_title：Chronobiology international

authors： Yoshimatsu H,Okazaki F,Ieiri I,To H

更新日期：2014-05-01 00:00:00

abstract：:A variable number tandem repeat polymorphism (VNTR) in the period 3 (PER3) gene has been associated with heritable sleep and circadian variables, including self-rated chronotypes, polysomnographic (PSG) variables, insomnia and circadian sleep-wake disorders. This report describes novel molecular and clinical analyses ...

journal_title：Chronobiology international

authors： Mansour HA,Wood J,Chowdari KV,Tumuluru D,Bamne M,Monk TH,Hall MH,Buysse DJ,Nimgaonkar VL

更新日期：2017-01-01 00:00:00

abstract：:The aim of this study was to examine the impact of brief, unscheduled naps during work periods on alertness and vigilance in coastal pilots along the Great Barrier Reef. On certain routes, the duration of the work period can extend well beyond 24 h. Seventeen coastal pilots volunteered for the study, representing almo...

journal_title：Chronobiology international

authors： Ferguson SA,Lamond N,Kandelaars K,Jay SM,Dawson D

更新日期：2008-04-01 00:00:00

abstract：:The phase and period responses to short light pulses were studied in the jerboa, a seasonal, hibernating, nocturnal rodent from the Atlas region in Morocco. The jerboa, which is a saltatory species, showed precise activity onsets and offsets under a light-dark (LD) cycle using infrared captors to record locomotor acti...

journal_title：Chronobiology international

authors： El Moussaouiti R,Bouhaddou N,Sabbar M,Cooper HM,Lakhdar-Ghazal N

更新日期：2010-08-01 00:00:00

abstract：:Postoperative delirium, a common perioperative complication, is frequently observed in elderly surgical patients. Few studies have investigated the life rhythm of preoperative patients, and whether or not the preoperative life rhythm is associated with the development of postoperative delirium. The purpose of this stu...

journal_title：Chronobiology international

authors： Tan C,Saito N,Miyawaki I,Shiotani H

更新日期：2020-07-01 00:00:00

abstract：:Dysfunctional regulation of brain dopamine (DA) functions has been found in patients with drug addiction and various neurological disorders that frequently accompany disturbance in sleep behavior. In this study, the roles of the dopaminergic nervous system on the regulation of daily locomotor activity rhythm were inve...

journal_title：Chronobiology international

authors： Lee G,Kikuno K,Bahn JH,Kim KM,Park JH

更新日期：2013-05-01 00:00:00

abstract：:The aim of this study was to demonstrate that a possible recurrence may pertain to migraine attacks (MAs). The study was carried out by checking the personal diaries of 30 migraine sufferers ("migraineurs") who carefully annotated the date of their MA over twelve consecutive months. The group was composed of 15 males ...

journal_title：Chronobiology international

authors： Cugini P,Romit A,Di Palma L,Giacovazzo M

更新日期：1990-01-01 00:00:00

abstract：:Thermoregulatory processes have long been implicated in the initiation of human sleep. In this paper, we review our own studies conducted over the last decade showing a crucial role for melatonin as a mediator between the thermoregulatory and arousal system in humans. Distal heat loss, via increased skin temperature, ...

journal_title：Chronobiology international

authors： Kräuchi K,Cajochen C,Pache M,Flammer J,Wirz-Justice A

更新日期：2006-01-01 00:00:00

abstract：:The present study was designed to investigate the effect of Ramadan fasting on feelings, dietary intake, rating of perceived exertion (RPE) and repeated high-intensity short-term maximal performance. Thirteen physically active men (age: 21.2 ± 2.9 years, height: 175.6 ± 5.6 cm, body-mass: 72.4 ± 8.6 kg) performed a 5-...

journal_title：Chronobiology international

authors： Boukhris O,Hsouna H,Chtourou L,Abdesalem R,BenSalem S,Tahri N,Trabelsi K,Stannard SR,Chtourou H

更新日期：2019-01-01 00:00:00

abstract：:In the contemporary era, when life habits are largely determined by social needs and individual preferences, sleep is nevertheless affected by seasonal environmental changes. Japan has large seasonal and geographical alterations of photoperiod and climate. Japan does not adopt the daylight saving time (DST) system, ma...

journal_title：Chronobiology international

authors： Hashizaki M,Nakajima H,Shiga T,Tsutsumi M,Kume K

更新日期：2018-07-01 00:00:00

abstract：:Behavior, physiological functions and cognitive performance change over the time of the day. These daily rhythms are either externally driven by rhythmic environmental cues such as the light/dark cycle (masking) or controlled by an internal circadian clock, the suprachiasmatic nucleus (SCN), which can be entrained to ...

journal_title：Chronobiology international

authors： Pfeffer M,Korf HW,von Gall C

更新日期：2015-02-01 00:00:00

abstract：:Fourteen ambulatory subjects, varying in their amount of habitual physical activity, were studied for 24 h during a total of 25 "typical" days. Rectal temperature was recorded every 6 minutes, an activity diary was filled in every half hour, and wrist activity and heart rate were monitored every minute. Actimetry and ...

journal_title：Chronobiology international

authors： Waterhouse J,Edwards B,Mugarza J,Flemming R,Minors D,Calbraith D,Williams G,Atkinson G,Reilly T

更新日期：1999-07-01 00:00:00

abstract：:Changes in the free-running period of the circadian rhythms of hamsters occur after single nonphotic events such as a 3-h pulse of running induced by being put in a novel wheel. These changes are mostly in the direction of longer periods, and can exceed 0.2 h; the magnitude of the effect depends on the circadian phase...

journal_title：Chronobiology international

authors： Mrosovsky N

更新日期：1993-08-01 00:00:00

abstract：:In the current study, we studied behavioral patterns, such as foraging, activity, standing, and laying in a population of cattle wandering on streets of Raipur city. We also determined the effects of four environmental factors (temperature, humidity, light, and noise intensities) on these behaviors. We recorded all fo...

journal_title：Chronobiology international

authors： Sahu BK,Parganiha A,Pati AK

更新日期：2019-10-01 00:00:00

abstract：:Total sleep deprivation (TSD) is known to impair sustained attention. However, previously reported effects of TSD on response inhibition are mixed. We administered a "stop-signal" variation of the psychomotor vigilance test, which included 25% of trials requiring withholding of a response to assess response inhibition...

journal_title：Chronobiology international

authors： Hudson AN,Hansen DA,Hinson JM,Whitney P,Layton ME,DePriest DM,Van Dongen HPA,Honn KA

更新日期：2020-08-25 00:00:00

abstract：:The present article analyzes locomotor activity rhythms in Tinca tinca. To that end, three different experiments were conducted on 24 animals (20 g body weight) kept in pairs in 60-liter aquaria fitted with infrared sensors connected to a computer to continuously record fish movements. The first experiment was designe...

journal_title：Chronobiology international

authors： Herrero MJ,Madrid JA,Sánchez-Vázquez FJ

更新日期：2003-11-01 00:00:00

abstract：:Fatigue is an increasingly noted factor in road accidents. The ability to predict and be aware of impairment in terms of driving capability is important for potential legal liability and road safety. However, to date, there have been few studies that have investigated the accuracy of individuals in predicting how safe...

journal_title：Chronobiology international

authors： Jones CB,Dorrian J,Jay SM,Lamond N,Ferguson S,Dawson D

更新日期：2006-01-01 00:00:00

abstract：:In order to optimize chronotherapeutic schedules (designs), we examined the interindividual differences in chronopharmacologic effects of drugs with consideration of the following three factors: (a) inherited factors of direct relevance to chronopharmacology (genetic variability, gender-related differences) as well as...

journal_title：Chronobiology international

authors： Reinberg AE,Ashkenazi IE

更新日期：1993-12-01 00:00:00

abstract：:The circalunidian-clock hypothesis is a formulation describing the means by which the tide-associated rhythms of intertidal organisms are generated. The postulate was described in a 1995 article in this journal (12:299-310). A recent paper published here (13:153-62) by Prof. Ernest Naylor challenges the validity of th...

journal_title：Chronobiology international

authors： Palmer JD

更新日期：1997-07-01 00:00:00