Abstract:
:In the free-running circadian locomotor activity rhythm of a 7-year-old male owl monkey (Aotus lemurinus griseimembra) kept under constant light and climatic conditions (LL 0.2 lux, 25 degrees C +/- 1 degrees C, 60 +/- 5% relative humidity [RH]), a second rhythm component developed that showed strong relative coordination with the free-running activity rhythm of 24.4h and a 24h rhythm. The simultaneously recorded feeding activity rhythm strongly resembled this rhythm component. Therefore, it seems justified to infer that there was an internal desynchronization between the two behavioral rhythms or their circadian pacemakers, that is, between the light-entrainable oscillator located in the suprachiasmatic nuclei (SCN) and a food-entrainable oscillator located outside the SCN. This internal desynchronization may have been induced and/or maintained by a zeitgeber effect of the (irregular) 24h feeding schedule on the food-entrainable oscillator. The weak relative coordination shown by the activity rhythm indicates a much weaker coupling of the light-entrainable oscillator to the food-entrainable oscillator than vice versa.
journal_name
Chronobiol Intjournal_title
Chronobiology internationalauthors
Erkert HGdoi
10.1081/cbi-100101039subject
Has Abstractpub_date
2000-03-01 00:00:00pages
147-53issue
2eissn
0742-0528issn
1525-6073journal_volume
17pub_type
杂志文章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
pub_type: 杂志文章
doi:10.1080/07420528.2016.1212870
更新日期:2016-01-01 00:00:00
abstract::In young healthy subjects salmon calcitonin (SCT), intranasally administered, increased in serum as a function of the drug administration time. The serum concentration of a 400 IU SCT dose monitored 10 min after dosing was statistically more significant when inhaled at 0000 than at other, more conventional, administra...
journal_title:Chronobiology international
pub_type: 杂志文章
doi:10.3109/07420528809079555
更新日期:1988-01-01 00:00:00
abstract::Circadian rhythms are still expressed in animals that display daily torpor, implying a temperature compensation of the pacemaker. Nevertheless, it remains unclear how the clock works in hypothermic states and whether torpor itself, as a temperature pulse, affects the circadian system. To reveal changes in the clockwor...
journal_title:Chronobiology international
pub_type: 杂志文章
doi:10.1080/07420520500522424
更新日期:2006-01-01 00:00:00
abstract::Changes in rectal temperature during mild exercise in the middle of the rising (11:00 h) and falling (23:00 h) phases of the circadian rhythm of resting core temperature have been compared. Seven healthy males were studied at rest, while exercising on a cycle ergometer (60 min at 80 W), and during the first 30 min of ...
journal_title:Chronobiology international
pub_type: 临床试验,杂志文章
doi:10.1080/07420520601142551
更新日期:2007-01-01 00:00:00
abstract::In a previous report, we showed that the circadian rhythm of cisplatin (cis-diamminedichloroplatinum, CDDP) toxicity in healthy mice was modified by buthionine sulfoximine (BSO), a specific inhibitor of glutathione (GSH) synthesis. In the present study, the effects of BSO on the rhythms of CDDP toxicity and antitumor ...
journal_title:Chronobiology international
pub_type: 杂志文章
doi:10.3109/07420529808998693
更新日期:1998-07-01 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
pub_type: 杂志文章
doi:10.3109/07420528.2010.489001
更新日期:2010-07-01 00:00:00
abstract::Shift workers are known to have an increased risk of developing cardiovascular disease (CVD) compared with day workers. An important factor contributing to this increased risk could be the increased incidence of postprandial metabolic risk factors for CVD among shift workers, as a consequence of the maladaptation of e...
journal_title:Chronobiology international
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1081/cbi-200037171
更新日期:2004-01-01 00:00:00
abstract::We evaluated their circadian rhythms using data from electrocardiographic records and examined the change in circadian period related to normal RR intervals for astronauts who completed a long-term (≥6-month) mission in space. The examinees were seven astronauts, five men and two women, from 2009 to 2010. Their mean ±...
journal_title:Chronobiology international
pub_type: 杂志文章
doi:10.3109/07420528.2014.979940
更新日期:2015-04-01 00:00:00
abstract::Chronotypes have been associated with psychopathology. The eveningness chronotype has been consistently linked with depressed states or depressive disorder, but the underlying mechanism remains unclear. Prior studies have shown associations between chronotype and personality traits that are linked to depression (e.g. ...
journal_title:Chronobiology international
pub_type: 杂志文章
doi:10.1080/07420528.2017.1345932
更新日期:2017-01-01 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
pub_type: 杂志文章
doi:10.3109/07420528.2015.1014096
更新日期:2015-06-01 00:00:00
abstract::It has been recently discovered that blue wavelengths form the portion of the visible electromagnetic spectrum that most potently regulates circadian rhythm. We investigated the effect of blue light-blocking glasses in subjects with delayed sleep phase disorder (DSPD). This open-label trial was conducted over 4 consec...
journal_title:Chronobiology international
pub_type: 杂志文章
doi:10.1080/07420528.2016.1194289
更新日期:2016-01-01 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
pub_type: 杂志文章
doi:10.3109/07420528.2010.530363
更新日期:2011-02-01 00:00:00
abstract::Animal and human studies demonstrate anatomical and functional links between the vestibular nuclei and the circadian timing system. This promotes the hypothesis of a circadian rhythm of vestibular function. The objective of this study was to evaluate the vestibular function through the vestibulo-ocular reflex using a ...
journal_title:Chronobiology international
pub_type: 杂志文章
doi:10.1080/07420528.2020.1835941
更新日期:2021-01-01 00:00:00
abstract::Physiological and biomechanical constraints as well as their fluctuations throughout the day must be considered when studying determinant factors in the preferred pedaling rate of elite cyclists. The aim of this study was to monitor the diurnal variation of spontaneous pedaling rate and movement kinematics over the cr...
journal_title:Chronobiology international
pub_type: 杂志文章
doi:10.1081/cbi-120024220
更新日期:2003-09-01 00:00:00
abstract::One proposed hypothesis regarding the etiology of chronic fatigue syndrome (CFS) is that there is a subgroup of patients in which symptom onset is precipitated by a viral infection. If this is indeed true, then one would anticipate a greater incidence of the emergence of CFS symptoms during months when viral infection...
journal_title:Chronobiology international
pub_type: 杂志文章
doi:10.1081/cbi-100103194
更新日期:2001-03-01 00:00:00
abstract::In 33 patients with heart failure (NYHA II-III), the 24-h blood pressure rhythm was examined before and after the titration period of two ACE inhibitors. Blood pressure was measured by the oscillometric method using the blood pressure monitor 90202 from SpaceLabs, Inc. The measurements were taken from 06:00 to 22:00 h...
journal_title:Chronobiology international
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.3109/07420529109059177
更新日期:1991-01-01 00:00:00
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journal_title:Chronobiology international
pub_type: 杂志文章
doi:10.1080/07420528.2020.1802289
更新日期:2020-12-01 00:00:00
abstract::ST8SIA2 and NCAM1 are functionally related genes forming polysialic acid (PSA) - neural cell adhesion molecule (NCAM) complex in suprachiasmatic nucleus (SCN), the regulating site of circadian biological rhythm. In this study, the relationship of ST8SIA2 and NCAM1 with circadian and seasonal rhythms of human behavior ...
journal_title:Chronobiology international
pub_type: 杂志文章
doi:10.1080/07420528.2017.1410827
更新日期:2018-03-01 00:00:00
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journal_title:Chronobiology international
pub_type: 杂志文章
doi:10.1080/07420528.2018.1529679
更新日期:2019-02-01 00:00:00
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journal_title:Chronobiology international
pub_type: 杂志文章
doi:10.3109/07420528709078525
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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
pub_type: 杂志文章
doi:10.3109/07420528909056921
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journal_title:Chronobiology international
pub_type: 杂志文章
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更新日期:1985-01-01 00:00:00
abstract::Rhythms in the mammalian pineal organ depend on afferent information that is derived from the endogenous clock residing in the hypothalamic suprachiasmatic nucleus (SCN). The best characterized function of the pineal gland is the nocturnally elevated synthesis of the hormone melatonin, which provides the body with the...
journal_title:Chronobiology international
pub_type: 杂志文章,评审
doi:10.1080/07420520500464379
更新日期:2006-01-01 00:00:00
abstract::Although several studies of glia have examined glial fibrillary acid protein (GFAP) and its relationship to the circadian rhythms of different organisms, they have not explored the daily GFAP oscillations in the putative pacemakers of the crayfish Procambarus clarkii or in other crustaceans. In this study we investiga...
journal_title:Chronobiology international
pub_type: 杂志文章
doi:10.3109/07420528.2015.1071385
更新日期:2015-01-01 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
pub_type: 杂志文章
doi:10.1080/07420528.2020.1758126
更新日期:2020-06-01 00:00:00
abstract::The circadian timing system adapts most of the mammalian physiology and behaviour to the 24 h light/dark cycle. This temporal coordination relies on endogenous circadian clocks present in virtually all tissues and organs and implicated in the regulation of key cellular processes including metabolism, transport and sec...
journal_title:Chronobiology international
pub_type: 杂志文章
doi:10.3109/07420528.2015.1046601
更新日期:2015-01-01 00:00:00
abstract::This retrospective study tested the hypothesis that disease control and treatment-related toxicity in patients undergoing high-dose radiotherapy (HDRT) for prostate cancer varies in a circadian manner. Patients with localized prostate adenocarcinoma receiving HDRT (median 78 Gy) to the prostate and involved seminal ve...
journal_title:Chronobiology international
pub_type: 杂志文章
doi:10.3109/07420528.2015.1130049
更新日期:2016-01-01 00:00:00
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journal_title:Chronobiology international
pub_type: 杂志文章
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更新日期:2019-01-01 00:00:00
abstract::Previous studies have demonstrated seasonal variation in the incidence of acute myocardial infarction (AMI) with an increase in cases during the winter months. However, they did not assess whether ST-elevation MI (STEMI) and non-ST-elevation MI (NSTEMI) exhibit similar changes. The object of this study was to compare ...
journal_title:Chronobiology international
pub_type: 杂志文章
doi:10.1080/07420520701800611
更新日期:2007-01-01 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
pub_type: 杂志文章
doi:10.3109/07420529509064495
更新日期:1995-02-01 00:00:00