Abstract:
:The aim of this study was to replicate and extend previous work in which the authors observed lower, shorter, and advanced nocturnal melatonin secretion patterns in premenstrually depressed patients compared to those in healthy control women. The authors also sought to test the hypothesis that the therapeutic effect of bright light in patients was associated with corrective effects on the phase, duration, and amplitude of melatonin rhythms. In 21 subjects with premenstrual dysphoric disorder (PMDD) and 11 normal control (NC) subjects, the authors measured the circadian profile of melatonin during follicular and luteal menstrual cycle phases and after 1 week of light therapy administered daily, in a randomized crossover design. During three separate luteal phases, the treatments were either (1) bright (> 2,500 lux) white morning (AM; 06:30 to 08:30 h), (2) bright white evening (PM; 19:00 to 21:00 h), or (3) dim (< 10 lux) red evening light (RED). In PMDD subjects, during the luteal phase compared to the follicular menstrual cycle phase, melatonin onset time was delayed, duration was compressed, and area under the curve, amplitude, and mean levels were decreased. In NC subjects, melatonin rhythms did not change significantly during the menstrual cycle. After AM light in PMDD subjects, onset and offset times were advanced and both duration and midpoint concentration were decreased as compared to RED light. After PM light in PMDD subjects, onset and offset times were delayed, midpoint concentration was increased, and duration was decreased as compared to RED light. By contrast, after light therapy in NC subjects, duration did not change; onset, offset, and midpoint concentration changed as they did in PMDD subjects. When the magnitude of advance and delay phase shifts in onset versus offset time with AM, PM, or RED light were compared, the authors found that in PMDD subjects light shifted offset time more than onset time and that AM light had a greater effect on shifting melatonin offset time (measured the following night in RED light), whereas PM light had a greater effect in shifting melatonin onset time. These findings replicate the authors' previous observation that nocturnal melatonin concentrations are decreased in women with PMDD and suggest specific effects of light therapy on melatonin circadian rhythms that are associated with mood changes in patient versus control groups. The differential changes in onset and offset times during the menstrual cycle, and in response to AM and PM bright light compared with RED light, support a two-oscillator (complex) model of melatonin regulation in humans.
journal_name
J Biol Rhythmsjournal_title
Journal of biological rhythmsauthors
Parry BL,Berga SL,Mostofi N,Klauber MR,Resnick Adoi
10.1177/074873049701200107subject
Has Abstractpub_date
1997-02-01 00:00:00pages
47-64issue
1eissn
0748-7304issn
1552-4531journal_volume
12pub_type
临床试验,杂志文章,随机对照试验abstract::Austrovenus stutchburyi is an intertidal, burrowing, filter-feeding bivalve. It exhibits a strong, approximately tidal pattern in the time of gaping of its valves when in constant laboratory conditions. Individuals that have been held in laboratory conditions long enough to lose their overt gaping pattern will respond...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/074873049701200208
更新日期:1997-04-01 00:00:00
abstract::The ventral subparaventricular zone (vSPVZ) receives direct retinal input and influences the daily patterning of activity in rodents, making it a likely candidate for the mediation of acute behavioral responses to light (i.e., masking). We performed chemical lesions aimed at the vSPVZ of diurnal grass rats (Arvicanthi...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/0748730415626251
更新日期:2016-04-01 00:00:00
abstract::Obesity during pregnancy causes numerous maternal and fetal health complications, but the underlying mechanisms remain unclear. Adipose tissue dysfunction in obesity has previously been linked to disruption of the intrinsic adipose clock gene network that is crucial for normal metabolic function. This adipose clock al...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/0748730418772499
更新日期:2018-06-01 00:00:00
abstract::A role for nitric oxide in circadian responses to light has been indicated in previous studies. To determine the specific function of NO-, the authors manipulated NO- and nitric oxide synthase (NOS) activity prior to light pulses that would normally induce phase shifts. The NOS inhibitor, L-NAME, selectively attenuate...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/074873049701200404
更新日期:1997-08-01 00:00:00
abstract::Whether the circatidal rhythm is generated by a machinery common to the circadian clock is one of the important and interesting questions in chronobiology. The mangrove cricket Apteronemobius asahinai shows a circatidal rhythm generating active and inactive phases and a circadian rhythm modifying the circatidal rhythm...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/0748730413516309
更新日期:2014-02-01 00:00:00
abstract::Activity patterns are the product of interactions between an internal circadian clock and direct responses to photic and nonphotic features of the environment that are said to "mask" the influence of that clock. Evolutionary transitions between nocturnality and diurnality involve changes in mechanisms underlying both ...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/0748730409351672
更新日期:2010-02-01 00:00:00
abstract::Abstract The cyanobacterial clock protein KaiC regulates the circadian cycle by exhibiting rhythms in transcription, translation, and phosphorylation. KaiC phosphorylation persists in circadian cycling even under transcription-less conditions and was reconstituted in vitro by incubating KaiC, KaiA, and KaiB. This pres...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/0748730406291329
更新日期:2006-10-01 00:00:00
abstract::The tau mutation in Syrian hamsters (Mesocricetus auratus) is phenotypically expressed in a period of the circadian rhythm of about 20 h in homozygotes (SS) and about 22 h in heterozygotes (S+). The authors investigate whether this well-defined model for variation in circadian period exhibits associated changes in ene...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/074873049701200503
更新日期:1997-10-01 00:00:00
abstract::Individuals of the shore crab Carcinus maenas were exposed to artificial cycles, applied in tidal antiphase, of pairs of the three major environmental variables that entrain circatidal rhythmicity in this species: salinity, temperature, and hydrostatic pressure. During entrainment, the observed locomotor activity patt...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/074873049000500405
更新日期:1990-01-01 00:00:00
abstract::Transplantation of the fetal suprachiasmatic nucleus (SCN) in arrhythmic SCN-lesioned rats can reinstate circadian drinking rhythms in 40% to 50% of the cases. In the current article, it was investigated whether the failure in the other rats could be due to the absence of a circadian rhythm in the grafted SCN, using a...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/074873099129000416
更新日期:1999-02-01 00:00:00
abstract::To determine if a circadian rhythm known to be functionally related to the reproductive axis varies on a circannual basis, we monitored the circadian secretion of melatonin at monthly intervals for 2 years in four ovariectomized, estradiol-implanted ewes held in a constant short-day photoperiod. Prior to the study, ew...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/074873049501000104
更新日期:1995-03-01 00:00:00
abstract::In vertebrates, reproductive output often increases with age. Unlike older birds, first-year photoperiodic birds lack experience with the reproductively stimulatory effects of long day lengths (photostimulation). We examined whether age-related differences in annual reproductive development could be partially attribut...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/0748730412468087
更新日期:2013-02-01 00:00:00
abstract::The adjustment of hamsters to advanced light-dark (LD) cycles can be greatly accelerated by scheduling a single 3-hr bout of extra activity in a novel running wheel, starting about 7 hr before the time when the animals become active in the preceding LD cycle. The present experiments were designed to provide stronger e...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/074873048900400305
更新日期:1989-10-01 00:00:00
abstract::While the rapid development of personal computers and high-throughput recording systems for circadian rhythms allow chronobiologists to produce huge amounts of data, the software to analyze them often lags behind. Here, we announce newly developed chronobiology software that is easy to use, compatible with many differ...
journal_title:Journal of biological rhythms
pub_type: 信件
doi:10.1177/0748730411414264
更新日期:2011-10-01 00:00:00
abstract::In isolated slices of hypothalamus, suprachiasmatic nucleus (SCN) neurons were recorded intracellularly. Blockade of Ca++ channels increased spike duration, eliminating an early component of the afterhyperpolarization (AHP) that followed evoked spikes. The duration and reversal potential of AHPs were, however, unaffec...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/074873049000500106
更新日期:1990-04-01 00:00:00
abstract::Threads of evidence from recent experimentation in retinal morphology, neurochemistry, electrophysiology, and visual perception point toward rhythmic ocular processes that may be integral components of circadian entrainment in mammals. Components of retinal cell biology (rod outer-segment disk shedding, inner-segment ...
journal_title:Journal of biological rhythms
pub_type: 杂志文章,评审
doi:10.1177/074873049100600104
更新日期:1991-04-01 00:00:00
abstract::A rhythm mutant of Drosophila melanogaster was induced by chemical mutagenesis and isolated by testing for locomotor activity rhythms, which in the new variant had periods of approximately 16 hr. The sex-linked mutation responsible for this ultrashort period causes 20-hr rhythms when heterozygous with a normal X. This...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/074873049400900303
更新日期:1994-01-01 00:00:00
abstract::In mammals, the suprachiasmatic nucleus (SCN) is the central pacemaker organizing circadian rhythms of behavior and physiology. At the cellular level, the mammalian clock consists of autoregulatory feedback loops involving a set of "clock genes," including the Cryptochrome (Cry) genes, Cry1 and Cry2. Experimental evid...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/0748730412461246
更新日期:2012-12-01 00:00:00
abstract::Circadian rhythms are programmed by the suprachiasmatic nucleus (SCN), which relies on neuropeptide signaling to maintain daily timekeeping. Vasoactive intestinal polypeptide (VIP) is critical for SCN function, but the precise role of VIP neurons in SCN circuits is not fully established. To interrogate their contribut...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/0748730420925573
更新日期:2020-08-01 00:00:00
abstract::During the first 7 weeks of postnatal life, short day lengths inhibit the onset of puberty in many photoperiodic rodents, but not in Syrian hamsters. In this species, timing of puberty and fecundity are independent of the early postnatal photoperiod. Gestational day length affects postnatal reproductive development in...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/0748730408322985
更新日期:2008-10-01 00:00:00
abstract::Past research has shown that there is a circadian oscillator in laboratory rats that is entrained by restricted feeding schedules. However, in laboratory rats at least, the light-dark (LD) cycle is the dominant zeitgeber in the entrainment of wheel-running activity rhythms. Given that dasyurid marsupials are predomina...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/074873048900400104
更新日期:1989-04-01 00:00:00
abstract::Ground squirrels, Spermophilus tridecemlineatus, were kept in a 12:12 h light-dark cycle. As expected for a diurnal species, their locomotor activity occurred almost entirely in the daytime. Expression of mPer1 and mPer2 in the suprachiasmatic nucleus was studied at six time points by in situ hybridization. For both t...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/074873001129002141
更新日期:2001-10-01 00:00:00
abstract::The circadian system in higher organisms temporally orchestrates rhythmic changes in a vast number of genes and gene products in different organs. Complex interactions between these components, both within and among cells, ultimately lead to rhythmic behavior and physiology. Identifying the plethora of circadian targe...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/0748730406294767
更新日期:2006-12-01 00:00:00
abstract::The classical power spectrum, computed in the frequency domain, outranks traditionally used periodograms derived in the time domain (such as the chi2 periodogram) regarding the search for biological rhythms. Unfortunately, classical power spectral analysis is not possible with unequally spaced data (e.g., time series ...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/074873099129000984
更新日期:1999-12-01 00:00:00
abstract::The pineal organ of the lizard Anolis carolinensis acts as a transducer of photoperiodic information, since light can affect the pineal melatonin rhythm (PMR). The synthesis and secretion of melatonin may be a major mechanism whereby a circadian pacemaker within the pineal can control circadian clocks located elsewher...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/074873048700200303
更新日期:1987-10-01 00:00:00
abstract::Temperature compensation of circadian rhythms in neuronal firing rate was investigated in the suprachiasmatic nucleus (SCN) of ground squirrels and rats in vitro. A reduction in SCN temperature from 37 to 25 degrees C reduced peak firing rates by > 70% in rats but only by approximately 21% in squirrels; trough firing ...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/074873049601100205
更新日期:1996-06-01 00:00:00
abstract::The temporal expression pattern of the circadian clock gene period was compared between heads of the linden bug, Pyrrhocoris apterus , kept under diapause-promoting short days (SD) and diapause-preventing long days (LD) using a real-time PCR quantification. Diapause or reproduction was programmed by photoperiod during...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/0748730407303624
更新日期:2007-08-01 00:00:00
abstract::To date, it is largely unknown which light settings define the optimum to steer alertness and cognitive control during regular daytime working hours. In the current article, we used a multimeasure approach combined with a relatively large sample size ( N = 60) and a large range of intensity levels (20-2000 lux at eye ...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/0748730418796438
更新日期:2018-12-01 00:00:00
abstract::Morningness and eveningness preference, an endogenous component of the circadian clock, is characterized by an interindividual difference in circadian phase and requires of humans a specific timing of behavior. The biological rhythms of morning and evening types are consequently phase shifted with fixed socioeconomic ...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/074873001129001764
更新日期:2001-04-01 00:00:00
abstract::Siberian hamsters are photoperiodic seasonally breeding rodents. To date, there has been no evidence that Siberian hamsters exhibit an annual rhythm in reproductive, thermoregulatory, molt, or body mass changes. However, given that the termination of their winter cycle is under endogenous control, the authors thought ...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/074873040001500206
更新日期:2000-04-01 00:00:00