E and M circadian pacemaker neurons use different PDF receptor signalosome components in drosophila [0.03%]
果蝇的E和M型光周期振荡器神经元使用不同的PDF受体信号体成分
Laura B Duvall,Paul H Taghert
Laura B Duvall
We used real-time imaging to detect cAMP levels in neurons of intact fly brains to study the mechanisms of circadian pacemaker synchronization by the neuropeptide pigment dispersing factor (PDF) in Drosophila. PDF receptor (PDF-R) is expres...
Diurnal 24-hour rhythm in ambulatory heart rate variability during the day shift in rotating shift workers [0.03%]
轮班工作者日班期间24小时动态心率变异性的昼夜节律性
Takahiro Yoshizaki,Yukari Kawano,Yuki Tada et al.
Takahiro Yoshizaki et al.
Circadian variation in cardiac autonomic nervous system activity and behavior during the day shifts of shift workers has not hitherto been clarified. This study examined diurnal 24-h variation in heart rate variability (HRV), sleep-wake cyc...
Effects of sex pheromones and sexual maturation on locomotor activity in female sea lamprey (Petromyzon marinus) [0.03%]
海河豚鱼(Petromyzon marinus)性外激素和性成熟对雌性运动活动的影响
Erin J Walaszczyk,Nicholas S Johnson,Juan Pedro Steibel et al.
Erin J Walaszczyk et al.
Synchronization of male and female locomotor rhythmicity can play a vital role in ensuring reproductive success. Several physiological and environmental factors alter these locomotor rhythms. As sea lamprey, Petromyzon marinus, progress thr...
The noncircadian function of the circadian Clock gene in the regulation of male fertility [0.03%]
时钟基因的非昼夜节律功能在调控雄性生育能力方面的角色
Xin Liang,Shuting Cheng,Xiaohui Jiang et al.
Xin Liang et al.
Mice homozygous for a dominant-negative allele of the Clock gene (Clock (Δ19/Δ19)) have slightly but significantly decreased male fertility. The molecular mechanism for this reduction in fertility is unknown. In the present study, we used...
Circannual rhythm in body temperature, torpor, and sensitivity to A₁ adenosine receptor agonist in arctic ground squirrels [0.03%]
北极地松鼠年度体温节奏、蛰眠以及A1腺苷受体激动剂敏感性研究
Jasmine M Olson,Tulasi R Jinka,Lindy K Larson et al.
Jasmine M Olson et al.
A₁ adenosine receptor (A₁AR) activation within the central nervous system induces torpor, but in obligate hibernators such as the arctic ground squirrel (AGS; Urocitellus parryii), A₁AR stimulation induces torpor only during the hibernat...
Exogenous T₃ elicits long day-like alterations in testis size and the RFamides Kisspeptin and gonadotropin-inhibitory hormone in short-day Siberian hamsters [0.03%]
外源性T3诱导短日照 Siberian hamsters 的长日照样睾丸大小变化及其RFamide激素Kisspeptin和Gonadotropin-Inhibitory Hormone的变化
Jerad R Henson,Sara N Carter,David A Freeman
Jerad R Henson
Siberian hamsters (Phodopus sungorus) exhibit robust seasonal rhythms of reproduction driven by changes in day length. Day length is encoded endogenously by the duration of nocturnal melatonin (Mel) secretion from the pineal gland. Short du...
Takako Noguchi,Lexie L Wang,David K Welsh
Takako Noguchi
Like neurons in the suprachiasmatic nucleus (SCN), the master circadian pacemaker in the brain, single fibroblasts can function as independent oscillators. In the SCN, synaptic and paracrine signaling among cells creates a robust, synchroni...
Accelerated degradation of perS protein provides insight into light-mediated phase shifting [0.03%]
光调控相位转换的加速降解途径研究——PER蛋白的光氧途径
Yue Li,Michael Rosbash
Yue Li
Phase resetting by light is an important feature of circadian rhythms, and the current Drosophila model focuses on light-mediated degradation of the clock protein TIMELESS (TIM). PERIOD (PER) is the binding partner of TIM and a major repres...
Human circadian phase estimation from signals collected in ambulatory conditions using an autoregressive model [0.03%]
基于自回归模型的日间节律相位估计方法
Enrique A Gil,Xavier L Aubert,Els I S Møst et al.
Enrique A Gil et al.
Phase estimation of the human circadian rhythm is a topic that has been explored using various modeling approaches. The current models range from physiological to mathematical, all attempting to estimate the circadian phase from different p...
Chronotype modulates sleep duration, sleep quality, and social jet lag in shift-workers [0.03%]
chrono型调节轮班工人睡眠时长、睡眠质量和社交时差
Myriam Juda,Céline Vetter,Till Roenneberg
Myriam Juda
This study explores chronotype-dependent tolerance to the demands of working morning, evening, and night shifts in terms of social jet lag, sleep duration, and sleep disturbance. A total of 238 shift-workers were chronotyped with the Munich...