Entrainment to light of circadian activity rhythms in tench (Tinca tinca).

abstract：:Twenty-two depressed subjects who met criteria for major depressive disorder were grouped according to their initial REM latency. Subjects with short (less than or equal to 60 min) initial REM latency were separated from those with normal (greater than 60 min) initial REM latency. Subjects with short initial REM laten...

journal_title：Chronobiology international

authors： Zammit GK,Pollak C,Rosenbaum AH,Roth T

更新日期：1990-01-01 00:00:00

abstract：:The study aimed at testing chronotype and gender differences in the time of day when humans feel the greatest need for sex and the time of day they actually undertake sexual activity. A Polish sample of 565 participants aged between 18 and 57 was tested. In females, regardless of chronotype, the greatest need for sex ...

journal_title：Chronobiology international

authors： Jankowski KS,Díaz-Morales JF,Randler C

更新日期：2014-10-01 00:00:00

abstract：:Lung cancer is the leading cause of cancer deaths worldwide. Both incidence and mortality of lung cancer are especially high in Hungary. Several investigations suggested recently that month of birth (MOB) is associated with the risks of several nonmalignant disorders as well as some malignant disorders. Only a few stu...

journal_title：Chronobiology international

authors： Kapitány B,Döme P,Döme B,Rihmer Z

更新日期：2011-08-01 00:00:00

abstract：:Light and temperature cycles are the most important synchronizers of biological rhythms in nature. However, the relative importance of each, especially when they are not in phase, has been poorly studied. The aim of this study was to analyze the entrainment of daily locomotor activity to light and/or temperature cycle...

journal_title：Chronobiology international

authors： López-Olmeda JF,Madrid JA,Sánchez-Vázquez FJ

更新日期：2006-01-01 00:00:00

abstract：:In the laboratory rat, a number of physiological parameters display seasonal changes even under constant conditions of temperature, lighting, and food availability. Since there is evidence that prolactin (PRL) is, among the endocrine signals, a major mediator of seasonal adaptations, the authors aimed to examine wheth...

journal_title：Chronobiology international

authors： Jiménez-Ortega V,Barquilla PC,Pagano ES,Fernández-Mateos P,Esquifino AI,Cardinali DP

更新日期：2012-10-01 00:00:00

abstract：:In 24h studies of bone marrow (BM), circadian stage-dependent variations were demonstrated in the proliferative activity of BM cells from subsets of 35 healthy diurnally active men. On an average, the percentage of total BM cells in deoxyribonucleic acid (DNA) synthesis phase was 188% greater at midday than at midnigh...

journal_title：Chronobiology international

authors： Smaaland R,Sothern RB,Laerum OD,Abrahamsen JF

更新日期：2002-01-01 00:00:00

abstract：:Performance alterations in executive function have been studied as potential endophenotypes for several neuropsychiatric diseases. Planning is an important component of executive function and has been shown to be affected in diseases such as attention deficit hyperactivity disorder, schizophrenia, obsessive-compulsive...

journal_title：Chronobiology international

authors： González-Giraldo Y,González-Reyes RE,Mueller ST,Piper BJ,Adan A,Forero DA

更新日期：2015-06-01 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：: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：:This study investigated (i) blood pressure (BP), heart rate (HR), and their relation to urinary NOx and eNOS protein expression in male and female spontaneously hypertensive rats (SHR), as well as (ii) gender-dependent cardiovascular effects of nebivolol (NEB) in comparison to metoprolol (MET) in SHR. BP and HR were m...

journal_title：Chronobiology international

authors： Grundt C,Meier K,Lemmer B

更新日期：2006-01-01 00:00:00

abstract：:Despite results linking shift work with ill health, only a few studies have addressed its relation with mortality. The purpose of the present study was to examine the hypothesis that shift work is a predictor of mortality. The study involved a sample of 22,411 individuals of the Swedish population. Data were obtained ...

journal_title：Chronobiology international

authors： Akerstedt T,Kecklund G,Johansson SE

更新日期：2004-01-01 00:00:00

abstract：:Shiftwork, particularly that including night work, causes disruption of biological rhythms and perturbation of the social and family life that can negatively affect performance efficiency, health, and social relations. Adverse effects can manifest themselves in the short term as sleep disturbances, shiftlag syndrome, ...

journal_title：Chronobiology international

authors： Costa G

更新日期：1997-03-01 00:00:00

abstract：:Boundaries between work and private life are diminishing, but little is known on how this influences worker health. Therefore, we examined the association between work-related contacts outside of regular working hours by e-mail or phone and self-reported health in a representative sample of European employees (n = 23 ...

journal_title：Chronobiology international

authors： Arlinghaus A,Nachreiner F

更新日期：2013-11-01 00:00:00

abstract：:Very little is known about the prevalence of morning work and its relationship with sleep and fatigue. The present study obtained data from a representative sample of the Swedish population (N = 5489) to address this limitation in the literature. The results show that 15% of the population commenced work, at least occ...

journal_title：Chronobiology international

authors： Akerstedt T,Kecklund G,Selén J

更新日期：2010-07-01 00:00:00

abstract：:The focus of this study was on daytime and nighttime sleep and wakefulness during the peak age for Sudden Infant Death Syndrome (SIDS), two to four months, to determine whether there are differences between at-risk for SIDS (R) and control (C) infants. Such differences may provide insight on the frequent occurrence of...

journal_title：Chronobiology international

authors： Cornwell AC,Feigenbaum P

更新日期：2006-01-01 00:00:00

abstract：:Semilunar and lunar rhythms are often controlled endogenously, but the mechanisms of their respective free-run periods, when external factors are absent, are mostly unclear. In this investigation, the authors studied the mechanism controlling the period of the circasemilunar emergence rhythm of a marine midge, Pontomy...

journal_title：Chronobiology international

authors： Soong K,Chang YH

更新日期：2012-12-01 00:00:00

abstract：:Diurnal and seasonal rhythms of cortisol, testosterone, and DHEA were examined, as little is known about the relationship between these rhythmicities and pubertal development. Salivary samples were obtained from 60 boys and 60 girls at approximately 07:45, 08:00, 08:30, 12:00, 16:50, and 21:00 h. The participants' age...

journal_title：Chronobiology international

authors： Matchock RL,Dorn LD,Susman EJ

更新日期：2007-01-01 00:00:00

abstract：:The effect of altitude on four basic properties of the pacemaker controlling the circadian rhythm of oviposition in two strains of Drosophila ananassae was determined. The high altitude (HA) strain from Badrinath (5123 m above sea level) had a low amplitude peak in the forenoon while the low altitude (LA) strain from ...

journal_title：Chronobiology international

authors： Khare PV,Satralkar MK,Vanlalnghaka C,Keny VL,Kasture MS,Shivagaje AJ,Barnabas RJ,Joshi DS

更新日期：2005-01-01 00:00:00

abstract：:Eveningness and sleep disturbances are considered as markers of Bipolar Disorder (BD) and influence mood and emotional or behavioral states. This study investigates the associations between circadian markers and sleep quality on residual depressive symptoms and inhibition/activation dimensions during the euthymic phas...

journal_title：Chronobiology international

authors： Caruso D,Meyrel M,Krane-Gartiser K,Benard V,Benizri C,Brochard H,Geoffroy PA,Gross G,Maruani J,Prunas C,Yeim S,Palagini L,Dell'Osso L,Leboyer M,Bellivier F,Etain B

更新日期：2020-01-01 00:00:00

abstract：:The molecular circadian clock mechanism is highly conserved between mammalian and avian species. Avian circadian timing is regulated at multiple oscillatory sites, including the retina, pineal, and hypothalamic suprachiasmatic nucleus (SCN). Based on the authors' previous studies on the rat ovary, it was hypothesized ...

journal_title：Chronobiology international

authors： Tischkau SA,Howell RE,Hickok JR,Krager SL,Bahr JM

更新日期：2011-02-01 00:00:00

abstract：:The circadian melatonin rhythm is highly reproducible and generally not easily altered. The few perturbations that are capable of significantly changing either the amplitude or the pattern of the 24-h melatonin rhythm are summarized herein. Aging alters cyclic melatonin production by decreasing the amplitude of the no...

journal_title：Chronobiology international

authors： Reiter RJ,Richardson BA

更新日期：1992-08-01 00:00:00

abstract：:In Cushing's syndrome, the cortisol rhythm is impaired and can be associated with the disruption in the rhythmic expression of clock genes. In this study, we evaluated the expression of CLOCK, BMAL1, CRY1, CRY2, PER1, PER2, PER3 genes in peripheral blood leukocytes of healthy individuals (n = 13) and Cushing's disease...

journal_title：Chronobiology international

authors： Soares VR,Silva Martins C,Martinez EZ,Araujo LD,Roa SLR,Silva LR,Moreira AC,De Castro M

更新日期：2020-06-01 00:00:00

abstract：:It has frequently been reported that exposure to artificial light at night (ALAN) may cause negative health effects, such as breast cancer, circadian phase disruption and sleep disorders. Here, we reviewed the literature assessing the effects of human exposure to ALAN in order to list the health effects of various asp...

journal_title：Chronobiology international

authors： Cho Y,Ryu SH,Lee BR,Kim KH,Lee E,Choi J

更新日期：2015-01-01 00:00:00

abstract：:Eveningness has been suggested as a facilitating factor in adaptation to shift work, with several studies reporting evening chronotypes (E-types) as better sleepers when on night shifts. Conversely, eveningness has been associated with more sleep complaints during day shifts. However, sleep during day shifts has recei...

journal_title：Chronobiology international

authors： Martin JS,Laberge L,Sasseville A,Bérubé M,Alain S,Houle J,Hébert M

更新日期：2015-06-01 00:00:00

abstract：:Circadian rhythms in plants are liable to masking, i.e. alterations by environmental influencing agents. Experiments have been reported for both positive and negative masking, attributed to a Zeitgeber which may either increase or decrease the amplitude of a circadian rhythm (CR). In some instances, the CR may even be...

journal_title：Chronobiology international

authors： Vanden Driessche T,Guisset JL,Gaspar T,Kevers C,Koukkari WL

更新日期：1989-01-01 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：:Biological clock components have been detected in many epithelial tissues of the digestive tract of mammals (oral mucosa, pancreas, and liver), suggesting the existence of peripheral circadian clocks that may be entrainable by food. Our aim was to investigate the expression of main peripheral clock genes in colonocyte...

journal_title：Chronobiology international

authors： Pardini L,Kaeffer B,Trubuil A,Bourreille A,Galmiche JP

更新日期：2005-01-01 00:00:00

abstract：:Plasma triglyceride (TG) levels show a clear daily rhythm, however, thus far it is still unknown whether this rhythm results from a daily rhythm in TG production, TG uptake or both. Previous studies have shown that feeding activity affects plasma TG concentrations, but it is not clear how the daily rhythm in feeding a...

journal_title：Chronobiology international

authors： Su Y,Foppen E,Mansur Machado FS,Fliers E,Kalsbeek A

更新日期：2018-07-01 00:00:00

abstract：:The suprachiasmatic nucleus (SCN) of the hypothalamus controls circadian rhythmicity in mammals (for reviews, see Refs. 33 and 59). Responses modulated by the SCN are numerous and include rhythms in sleep/wake cycles, locomotor, gnawing and general activity, temperature, ingestive behavior, and rhythms of hormonal and...

journal_title：Chronobiology international

authors： LeSauter J,Silver R

更新日期：1998-09-01 00:00:00

abstract：:Seasonal Affective Disorder (SAD) is a condition of regularly occurring depressions in winter with a remission the following spring or summer. In addition to depressed mood, the patients tend to experience increased appetite and an increased duration of sleep during the winter. SAD is a relatively common condition, af...

journal_title：Chronobiology international

authors： Magnusson A,Boivin D

更新日期：2003-03-01 00:00:00