Activity rhythms of wild and laboratory golden hamsters (Mesocricetus auratus) under entrained and free-running conditions.

abstract：:Daily variation in the absorption, metabolism and excretion of toxic substances will ultimately determine the actual concentration to which the cells and tissues are exposed. In aquaculture, Atlantic salmon (Salmo salar) can be frequently exposed to hydrogen peroxide (H2O2) to treat topical skin and gill infections, p...

journal_title：Chronobiology international

authors： Vera LM,Migaud H

更新日期：2016-01-01 00:00:00

abstract：:Previously, we have demonstrated the postembryonic development of chicken (Gallus gallus domesticus L.) pineal gland functions expressed as changes in melatonin (MEL) biosynthesis. Pineal concentrations of MEL and its precursor serotonin (5-HT) were shown to increase between the 2nd and 16th day of life. We also found...

journal_title：Chronobiology international

authors： Piesiewicz A,Kedzierska U,Turkowska E,Adamska I,Majewski PM

更新日期：2015-02-01 00:00:00

abstract：:In previous experiments, we found that rats raised in constant light (LL) manifested a more robust circadian rhythm of motor activity in LL and showed longer phase shifts after a light pulse in constant darkness (DD) than chose raised under constant darkness. In addition, we observed that the effects produced by const...

journal_title：Chronobiology international

authors： Canal-Corretger MM,Vilaplana J,Cambras T,Díez-Noguera A

更新日期：2001-07-01 00:00:00

abstract：:The purpose of this study was to evaluate the effects of partial sleep deprivation (PSD) on circulating concentrations of interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-α) in relation to the secretory profiles of growth hormone (GH), cortisol, and testosterone during a repeated brief sprint interval exercis...

journal_title：Chronobiology international

authors： Abedelmalek S,Souissi N,Chtourou H,Denguezli M,Aouichaoui C,Ajina M,Aloui A,Dogui M,Haddouk S,Tabka Z

更新日期：2013-05-01 00:00:00

abstract：:Patients with resistant hypertension (RH) are at greater risk for stroke, renal insufficiency, and cardiovascular disease (CVD) events than are those for whom blood pressure (BP) is responsive to and well controlled by therapeutic interventions. Although all chronotherapy trials have compared the effects on BP regulat...

journal_title：Chronobiology international

authors： Hermida RC,Ríos MT,Crespo JJ,Moyá A,Domínguez-Sardiña M,Otero A,Sánchez JJ,Mojón A,Fernández JR,Ayala DE,Hygia Project Investigators.

更新日期：2013-03-01 00:00:00

abstract：:The aim of this study was to examine the effect of the interaction of circamensal and diurnal rhythms in temperature upon the production of maximal voluntary muscle force. Ten eumenorrheic females (mean age: 24 +/- 3 yr mean body mass: 58.4 +/- 6.9 kg) participated in the experiment at both 06:00 and 18:00h at the mid...

journal_title：Chronobiology international

authors： Birch K,Reilly T

更新日期：2002-07-01 00:00:00

abstract：:Bone sarcomatous cells derived from human malignant tumors were cultured. The mitotic index was recorded for 39 hr. When the cultured cells originated from patients with cancer disease before any chemotherapy, ultradian mitotic rhythms of a 6-9-hr period were detected, but in many cases only after a sensitive statisti...

journal_title：Chronobiology international

authors： Petrovic A,Oudet C,Stutzmann J

更新日期：1989-01-01 00:00:00

abstract：:Immune cell trafficking is crucial for surveillance and effector functions of the immune system. Circadian rhythms of the hypothalamic-pituitary-adrenal (HPA) axis and of cortisol have been implicated in circadian redistribution of circulating lymphocytes and granulocytes. However, information regarding the diurnal re...

journal_title：Chronobiology international

authors： Trifonova ST,Zimmer J,Turner JD,Muller CP

更新日期：2013-06-01 00:00:00

abstract：:Sleep disturbances, chronotype and social jetlag (SJL) have been associated with increased risks for major chronic diseases that take decades to develop, such as obesity, metabolic syndrome and cardiovascular disease. Potential relationships between poor sleep, chronotype and SJL as they relate to metabolic risk facto...

journal_title：Chronobiology international

authors： McMahon DM,Burch JB,Youngstedt SD,Wirth MD,Hardin JW,Hurley TG,Blair SN,Hand GA,Shook RP,Drenowatz C,Burgess S,Hebert JR

更新日期：2019-04-01 00:00:00

abstract：:In birds, circadian control of tissue level communication is not well understood. The present study investigated this, by monitoring daily oscillation of genes coding for peptides (neuropeptide Y, NPY; vasoactive intestinal peptide, VIP; somatostatis, SST) and intermediary enzymes of amine and amino acid neurotransmit...

journal_title：Chronobiology international

authors： Mishra I,Singh D,Kumar V

更新日期：2016-01-01 00:00:00

abstract：:Current evidence suggests that acute depression is associated with reduced total hippocampal volume and regional atrophy. Here, using structural magnetic resonance imaging, we assayed linear effects of chronotype on total hippocampal volume and morphology. Later chronotype was associated with localised atrophy in the ...

journal_title：Chronobiology international

authors： Horne CM,Norbury R

更新日期：2018-07-01 00:00:00

abstract：:A diary-based instrument-the Social Rhythm Metric (SRM)-was used to assess the level of stability of daily social and behavioral rhythms in a group of 239 healthy subjects (112 male, 127 female) ranging in age from 20 to 89 years. Each subject completed the instrument for two consecutive weeks, which were averaged to ...

journal_title：Chronobiology international

authors： Monk TH,Reynolds CF 3rd,Kupfer DJ,Hoch CC,Carrier J,Houck PR

更新日期：1997-05-01 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：:This article reviews the experimental and clinical data that form the basis for the chronotherapy of lung carcinoma, specifically, nonsmall cell lung cancer (NSCLC). Circadian rhythms in cell kinetics, immunological and endocrinological endpoints, and tumor markers are reviewed. Chronopharmacology and chronotolerance ...

journal_title：Chronobiology international

authors： Focan C

更新日期：2002-01-01 00:00:00

abstract：:Visual sensitivity rhythm has been assessed by several authors in animals. It shows an intrinsic circadian rhythm of some retinal mechanisms that could account for fluctuating sensitivity to light during the day in these species. However, very little is known concerning a possible circadian rhythm of visual sensitivit...

journal_title：Chronobiology international

authors： Tassi P,Pins D

更新日期：1997-01-01 00:00:00

abstract：:Light-at-night (LAN) is a worldwide problem co-distributed with breast cancer prevalence. We hypothesized that exposure to LAN is coincided with a decreased melatonin (MLT) secretion level, followed by epigenetic modifications and resulted in higher breast cancer tumors growth-rate. Accordingly, we studied the effect ...

journal_title：Chronobiology international

authors： Schwimmer H,Metzer A,Pilosof Y,Szyf M,Machnes ZM,Fares F,Harel O,Haim A

更新日期：2014-02-01 00:00:00

abstract：:Circadian rhythms of plasma insulin, cortisol, and glucose concentrations were examined in scotosensitive (reproductively sensitive to inhibitory effects of short daylengths) and scotorefractory male and female Syrian hamsters (Mesocricetus auratus) maintained on short (LD 10:14) and long (LD 14:10) daylengths. The ba...

journal_title：Chronobiology international

authors： de Souza CJ,Meier AH

更新日期：1987-01-01 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：:The objective of this study was to determine in a significant temporal pattern exists in the presentation of sickle cell vaso-occlusive pain crisis (SC-VPC) patients to an emergency department (ED) for treatment. This 28-month retrospective study of ED sickle cell crisis treatment involved 1128 presumably diurnally ac...

journal_title：Chronobiology international

authors： Auvil-Novak SE,Novak RD,el Sanadi N

更新日期：1996-12-01 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：: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：:Twenty-one children aged 5-6 years (mean age: 71.2 months; S.D. = 2.7) were videotaped in 4 different kindergartens throughout the school day for a period of one week. Eighteen of these children were then followed up after the summer holidays and videotaped for one week while attending the first year of primary school...

journal_title：Chronobiology international

authors： Koch P,Montagner H,Soussignan R

更新日期：1987-01-01 00:00:00

abstract：:Background: Numerous clinical studies have evaluated valsartan and found more efficacious control of blood pressure (BP) variability when administered before sleep. The treatment leads to improved outcomes when compared to administration upon awakening. The mechanism underlying this etiology is not fully understood. T...

journal_title：Chronobiology international

authors： Yang K,Wang Y,Ding Y,Cui H,Zhou D,Chen L,Ma Z,Wang W,Zhang W,Luan J

更新日期：2019-08-01 00:00:00

abstract：:Social anxiety has recently been linked to morningness-eveningness; however, the psychological mechanisms underlying this relationship are not well known. As such, the purpose of the current study is to propose a model by which morningness-eveningness is related to social anxiety symptoms through punishment sensitivit...

journal_title：Chronobiology international

authors： Markarian SA,Gildner DJ,Pickett SM,Warnke AS

更新日期：2019-02-01 00:00:00

abstract：:Career decisions are based on the fit between an individual and his/her environment. This study explores the effect of person-environment fit regarding actual and preferred weekly working hours on early and late retirement intentions in a sample of 7,859 employees aged 50 to 65 years of age living in Germany. Findings...

journal_title：Chronobiology international

authors： Wöhrmann AM,Brauner C,Michel A

更新日期：2020-08-24 00:00:00

abstract：:The purpose of this study was to investigate the influence of rest-activity rhythm on the survival of cancer patients. This study collected data related to cancer patients experiencing pain who had been hospitalized for treatment between August 2006 and October 2007. Data included the Karnofsky Performance Status Inde...

journal_title：Chronobiology international

authors： Chang WP,Lin CC

更新日期：2014-10-01 00:00:00

abstract：:Individual differences in time of day preference have important correlates. Morningness is associated with greater well-being, while eveningness is associated with more maladaptive behaviors, psychological distress, and disorder. The availability of valid, reliable, questionnaire scales is central to this ongoing rese...

journal_title：Chronobiology international

authors： Carciofo R,Song N

更新日期：2019-08-01 00:00:00

abstract：:Many immune parameters exhibit daily and circadian oscillations, including the number of circulating cells and levels of cytokines in the blood. Mice also have a differential susceptibility to lipopolysaccharide (LPS or endotoxin)-induced endotoxic shock, depending on the administration time in the 24 h light-dark (LD...

journal_title：Chronobiology international

authors： Marpegan L,Leone MJ,Katz ME,Sobrero PM,Bekinstein TA,Golombek DA

更新日期：2009-10-01 00:00:00

abstract：:Groups of 20-45-day-old rats maintained on a light (0600-1800)/dark (1800-0600) regimen with food and water available ad libitum were studied for the effect of hypoxic hypoxia on the circadian rhythm of corneal epithelial mitosis and thymidine incorporation. In experiments conducted during the months of September and ...

journal_title：Chronobiology international

authors： Kwarecki K,Krawczyk J

更新日期：1989-01-01 00:00:00