Melatonin synthesis in the human pineal gland: advantages, implications, and difficulties.

abstract：:The objective of the present study was to evaluate the sexual behavior of male rats kept under constant laboratory conditions for one entire year. A total of 213 sexually-inexperienced, male Wistar rats were maintained in controlled environmental conditions from birth. Depending the month in which they reached the age...

journal_title：Chronobiology international

authors： Ramírez-Rentería ML,Hernández-Arteaga E,Hernández González M,Cruz-Aguilar MA,Ortega-Hernández TMF,Sotelo-Tapia C,Guevara MA

更新日期：2020-02-01 00:00:00

abstract：:Various processes associated with mammalian reproduction exhibit circadian rhythms, yet no information is available concerning the presence of rhythmicity in meiosis-the crucial process of the production of sex cells. Following meiosis in cells derived from male mice exposed in vivo to daily light-dark cycles (LD), we...

journal_title：Chronobiology international

authors： Rienstein S,Dotan A,Avivi L,Ashkenazi I

更新日期：1998-01-01 00:00:00

abstract：:Four healthy non obese young volunteers were observed for a 24-hr period, every other month, over the course of one year. Tolbutamide was injected i.v. each day of the experiment every four hours. Tolbutamide-induced insulin secretion (T.I.I.S.) was evaluated by planimetrically measuring insulin areas above basal leve...

journal_title：Chronobiology international

authors： Del Ponte A,Guagnano MT,Sensi S

更新日期：1984-01-01 00:00:00

abstract：:A synopsis of the effects of exercise on the circadian system in nocturnal rodents is followed by a review of the few studies investigating the influence of exercise on the human circadian system. It is premature to make specific recommendations about using exercise to promote synchronization in people because of the ...

journal_title：Chronobiology international

authors： Redlin U,Mrosovsky N

更新日期：1997-03-01 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：:Police officers are required to work irregular hours, which induces stress, fatigue, and sleep disruption, and they have higher rates of chronic disease and mortality. Cortisol is a well-known "stress hormone" produced via activation of the hypothalamic-pituitary-adrenal axis. An abnormal secretion pattern has been as...

journal_title：Chronobiology international

authors： Wirth M,Burch J,Violanti J,Burchfiel C,Fekedulegn D,Andrew M,Zhang H,Miller DB,Hébert JR,Vena JE

更新日期：2011-05-01 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：: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：: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：: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：:Eight diurnally active (approximately 0730-1100 hr) adults (41-61 yr) suffering from nocturnal asthma volunteered for a double-blind, cross-over randomized study of a once-daily dosing (600-900 mg/24 hr) of Armophylline (Rorer s.a., France), a sustained-release theophylline given either at 0800 hr or 2000 hr for 8-day...

journal_title：Chronobiology international

authors： Reinberg A,Pauchet F,Ruff F,Gervais A,Smolensky MH,Levi F,Gervais P,Chaouat D,Abella ML,Zidani R

更新日期：1987-01-01 00:00:00

abstract：:Circadian changes in activities and electrophoretic pattern of the intestinal brushborder enzymes alkaline phosphatase (EC 3.1.3.1), isomaltase (EC 3.2.1.10) and sucrase (EC 3.2.1.26) of normal rats and of rats with a lesion of the dorsomedial hypothalamus (DMH-rats) were studied. In contrast to the rhythm found in no...

journal_title：Chronobiology international

authors： Hekkens WT,van Rijn PA,Lukac-Bajalo J,Ungerer R,Rietveld WJ

更新日期：1985-01-01 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：:This study aims to investigate independent associations of habitual sleep durations and sleep timings on weekdays and weekends with depressive symptoms in adolescents who have classes in the morning. We studied grade 7-9 students (942 males and 940 females, aged 12-15 years), who had classes in the morning, at public ...

journal_title：Chronobiology international

authors： Ojio Y,Kishi A,Sasaki T,Togo F

更新日期：2020-06-01 00:00:00

abstract：:Intolerance to shift work may result from individual susceptibility to an internal desynchronization. Some shift workers (SW) who show desynchronization of their circadian rhythms (e.g., sleep-wake, body temperature, and grip strength of both hands) exhibit symptoms of SW intolerance, such as sleep alteration, persist...

journal_title：Chronobiology international

authors： Reinberg A,Ashkenazi I

更新日期：2008-07-01 00:00:00

abstract：:Most research papers published in Chronobiology International report the findings of investigations conducted on laboratory animals and human beings. The Journal, its editors and the publication committee endorse the compliance of investigators to the principles of the Declaration of Helsinki of the World Medical Asso...

journal_title：Chronobiology international

authors： Touitou Y,Portaluppi F,Smolensky MH,Rensing L

更新日期：2004-01-01 00:00:00

abstract：:Although there are significant intra-individual differences in self-reported diurnal preference, as measured by validated questionnaires, the relative contribution of exogenous and endogenous factors to self-reported diurnal preference largely remains to be investigated. The present study examined which items from the...

journal_title：Chronobiology international

authors： Ellis J,von Schantz M,Jones KH,Archer SN

更新日期：2009-04-01 00:00:00

abstract：:Fabry disease is a progressive disease characterized by an enzymatic deficiency of acid alpha-galactosidase and glycosphingolipids storage within the lysosomes. The disease has two phenotypes: classic and nonclassic. Excessive daytime sleepiness is a common sign reported by patients and can be caused by a circadian rh...

journal_title：Chronobiology international

authors： Vallim JRDS,Amaral FGD,Cipolla-Neto J,D'Almeida V

更新日期：2019-04-01 00:00:00

abstract：:The 10 min psychomotor vigilance task (PVT) is commonly used in laboratory studies to assess the impact of sleep loss, sustained wakefulness, and/or time of day on neurobehavioral performance. In field settings, though, it may be impractical for participants to perform a test of this length. The aim of this study was ...

journal_title：Chronobiology international

authors： Roach GD,Dawson D,Lamond N

更新日期：2006-01-01 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：:The contribution of the renin-angiotensin-aldosterone system (RAAS) to the development of congestive heart failure (CHF) and hypertension (HT) has long been recognized. Medications that are commonly used in the course of CHF and HT are most often given with morning food for the sake of convenience and therapeutic comp...

journal_title：Chronobiology international

authors： Mochel JP,Fink M,Bon C,Peyrou M,Bieth B,Desevaux C,Deurinck M,Giraudel JM,Danhof M

更新日期：2014-06-01 00:00:00

abstract：:The aim of this study was to determine the relationship between pilot workload, performance, subjective fatigue, sleep duration, number of sectors and flight duration during short-haul operations. Ninety pilots completed a NASA Task Load Index, Psychomotor Vigilance Task and a Samn-Perelli fatigue scale on top-of-desc...

journal_title：Chronobiology international

authors： Arsintescu L,Chachad R,Gregory KB,Mulligan JB,Flynn-Evans EE

更新日期：2020-08-24 00:00:00

abstract：:Light is necessary for life, and artificial light improves visual performance and safety, but there is an increasing concern of the potential health and environmental impacts of light. Findings from a number of studies suggest that mistimed light exposure disrupts the circadian rhythm in humans, potentially causing fu...

journal_title：Chronobiology international

authors： Tähkämö L,Partonen T,Pesonen AK

更新日期：2019-02-01 00:00:00

abstract：:The avian circadian system is composed of the retina, the mammalian homolog region of the suprachiasmatic nucleus (SNC), and the pineal gland. The retina, itself, displays many rhythmic physiological events, such as movements of photoreceptor cells, opsin expression, retinal reisomerization, and melatonin and dopamine...

journal_title：Chronobiology international

authors： Lima LH,Santos KP,Lauro Castrucci AM

更新日期：2011-03-01 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：:The effects of Chagas disease on the mammalian circadian system were studied in Trypanosoma cruzi-infected C57-B16J mice. Animals were inoculated with CAI or RA strains of T. cruzi or vehicle, parasitism confirmed by blood specimen visualization and locomotor activity rhythms analyzed by wheel-running recording. RA-st...

journal_title：Chronobiology international

authors： Fernández Alfonso T,Celentano AM,Gonzalez Cappa SM,Golombek DA

更新日期：2003-01-01 00:00:00

abstract：:The circadian clock and the hypoxic signaling pathway play critical roles in physiological homeostasis as well as in tumorgenesis. Interactions between both pathways have repeatedly been reported for mammals during the last decade, the molecular basis, though, has not been identified so far. Expression levels of oxyge...

journal_title：Chronobiology international

authors： Egg M,Köblitz L,Hirayama J,Schwerte T,Folterbauer C,Kurz A,Fiechtner B,Möst M,Salvenmoser W,Sassone-Corsi P,Pelster B

更新日期：2013-05-01 00:00:00

abstract：:We have recently demonstrated that the outcome of repeated social defeat (SD) on behavior, physiology and immunology is more negative when applied during the dark/active phase as compared with the light/inactive phase of male C57BL/6 mice. Here, we investigated the effects of the same stress paradigm, which combines a...

journal_title：Chronobiology international

authors： Bartlang MS,Savelyev SA,Johansson AS,Reber SO,Helfrich-Förster C,Lundkvist GB

更新日期：2014-11-01 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：:Chronic sympathetic denervation of the pineal gland by bilateral removal of the superior cervical ganglia (SCG) was performed on female rats 30 days before impregnation. The offspring, maintained in the dark from birth, had disruption of the malate dehydrogenase circadian rhythm in the testes at 25 days of age. A dail...

journal_title：Chronobiology international

authors： Vermouth NT,Carriazo CS,Gallará RV,Carpentieri AR,Bellavía SL

更新日期：1995-02-01 00:00:00