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C E Koch University of Lübeck, Chronophysiology Group, Medical Department 1, Lübeck, Germany

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M S Bartlang University of Würzburg, Biocenter, Theodor-Boveri-Institute, Neurobiology and Genetics, Würzburg, Germany

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J T Kiehn University of Lübeck, Chronophysiology Group, Medical Department 1, Lübeck, Germany

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L Lucke Department of Behavioral and Molecular Neurobiology, University of Regensburg, Regensburg, Germany

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N Naujokat University of Lübeck, Chronophysiology Group, Medical Department 1, Lübeck, Germany

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C Helfrich-Förster University of Würzburg, Biocenter, Theodor-Boveri-Institute, Neurobiology and Genetics, Würzburg, Germany

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S O Reber Department of Behavioral and Molecular Neurobiology, University of Regensburg, Regensburg, Germany

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H Oster University of Lübeck, Chronophysiology Group, Medical Department 1, Lübeck, Germany

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interventions. As a response to the earth’s rotation around its axis, endogenous circadian clocks have evolved regulating 24-h rhythms of behaviour and physiology, enabling organisms to anticipate and prepare for predictable changes in environmental parameters

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Ying Zhang Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
Hubei Clinical Research Center for Prenatal Diagnosis and Birth Health, Wuhan, Hubei, China
Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian, China

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Nan Meng Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian, China

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Haili Bao Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian, China

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Yufei Jiang Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian, China

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Ningjie Yang Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian, China

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Kejia Wu Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
Hubei Clinical Research Center for Prenatal Diagnosis and Birth Health, Wuhan, Hubei, China

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Jinxiang Wu Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian, China

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Haibin Wang Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian, China
Reproductive Medical Center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China

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Shuangbo Kong Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian, China
Reproductive Medical Center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China

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Yuanzhen Zhang Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
Hubei Clinical Research Center for Prenatal Diagnosis and Birth Health, Wuhan, Hubei, China

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core clock genes did not exhibit obvious rhythmic activity in undifferentiated culture. Furthermore, they did not significantly flatten in decidualized culture, indicating that the rhythm of core circadian genes may be unnecessary for the proliferation

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Sophie M T Wehrens Centre for Chronobiology, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, UK

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Shelagh M Hampton Centre for Chronobiology, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, UK

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Rebecca E Finn Centre for Chronobiology, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, UK

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Debra J Skene Centre for Chronobiology, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, UK

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given are those obtained during the week prior to the study (see Materials and Methods). Prior to the laboratory session In order to maintain or establish regular circadian rhythms (i.e. for the shift workers to be adapted for the laboratory study) and

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Nava Chapnik
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Gili Solomon
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Yoni Genzer
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Ruth Miskin Robert H. Smith Faculty of Agriculture, Department of Biological Chemistry, Food and Environment, Institute of Biochemistry, Food Science and Nutrition, The Hebrew University of Jerusalem, Rehovot 76100, Israel

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Arieh Gertler
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Oren Froy
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neuropeptides in the brain ( Froy et al . 2011 ). αMUPA mice also show pronounced circadian rhythms ( Froy et al . 2006 ) and altered locomotor activity compared with FVB/N mice ( Gutman et al . 2011 ). αMUPA mice that spontaneously consume less food per day

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Taeko Nishiwaki-Ohkawa Laboratory of Animal Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan

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Takashi Yoshimura Laboratory of Animal Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan
Division of Seasonal Biology, National Institute for Basic Biology, Okazaki, Japan
Avian Bioscience Research Center, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan

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) Borg B 2010 Phoroperiodism in fishes. In Photoperiodism the Biological Calendar , pp 371 – 398 . Eds Nelson RJ Denlinger DL Somers DE . New York, NY, USA : Oxford University Press . Bünning E 1960 Circadian rhythms and the

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Prashant Regmi Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
Lifelong Health Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia

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Rajesh Chaudhary Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
Lifelong Health Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia

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Amanda J Page Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
Lifelong Health Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia

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Amy T Hutchison Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
Lifelong Health Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia

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Andrew D Vincent Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia

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Bo Liu Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
Lifelong Health Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia

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Leonie Heilbronn Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
Lifelong Health Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia

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involved in circadian rhythm in liver, but with a phase delay in TRFd In ad libitum fed mice, HFD did not alter the amplitude (all P ≥ 0.11), mean (all P ≥ 0.38) or phase (all P ≥ 0.06) of any of the circadian regulators vs chow ( Fig. 4A , B

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Ryun S Ahn
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Jee H Choi Graduate School of Integrative Medicine, Hormone Research Center, Department of Obstetrics and Gynecology, Department of Family Medicine, Department of Life sciences, Research Institute of Integrative Medicine, CHA Medical University, Yuksam‐dong 605, Kangnamgu, Seoul 135-907, Republic of Korea

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Bum C Choi Graduate School of Integrative Medicine, Hormone Research Center, Department of Obstetrics and Gynecology, Department of Family Medicine, Department of Life sciences, Research Institute of Integrative Medicine, CHA Medical University, Yuksam‐dong 605, Kangnamgu, Seoul 135-907, Republic of Korea

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Jung H Kim Graduate School of Integrative Medicine, Hormone Research Center, Department of Obstetrics and Gynecology, Department of Family Medicine, Department of Life sciences, Research Institute of Integrative Medicine, CHA Medical University, Yuksam‐dong 605, Kangnamgu, Seoul 135-907, Republic of Korea

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Sung H Lee Graduate School of Integrative Medicine, Hormone Research Center, Department of Obstetrics and Gynecology, Department of Family Medicine, Department of Life sciences, Research Institute of Integrative Medicine, CHA Medical University, Yuksam‐dong 605, Kangnamgu, Seoul 135-907, Republic of Korea

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Simon S Sung Graduate School of Integrative Medicine, Hormone Research Center, Department of Obstetrics and Gynecology, Department of Family Medicine, Department of Life sciences, Research Institute of Integrative Medicine, CHA Medical University, Yuksam‐dong 605, Kangnamgu, Seoul 135-907, Republic of Korea

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preoptic area (POA; de la Iglesia et al . 1995 ). Transmission of the time-of-day signal from the SCN to CRH- and GnRH-synthesizing neurons is thought to be involved in the entrainment of the circadian rhythm governing the activities of the HPA and HPO

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Manuela S Bartlang
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Inga D Neumann Department of Neurobiology and Genetics, Department of Behavioural and Molecular Neurobiology, University of Würzburg, 97074 Würzburg, Germany

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David A Slattery Department of Neurobiology and Genetics, Department of Behavioural and Molecular Neurobiology, University of Würzburg, 97074 Würzburg, Germany

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Nicole Uschold-Schmidt Department of Neurobiology and Genetics, Department of Behavioural and Molecular Neurobiology, University of Würzburg, 97074 Würzburg, Germany

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Dominik Kraus Department of Neurobiology and Genetics, Department of Behavioural and Molecular Neurobiology, University of Würzburg, 97074 Würzburg, Germany

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Charlotte Helfrich-Förster
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Stefan O Reber Department of Neurobiology and Genetics, Department of Behavioural and Molecular Neurobiology, University of Würzburg, 97074 Würzburg, Germany

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patterns observed in most depressed patients and the recent licensing of agomelatine, which re-synchronizes disrupted circadian rhythms ( Yous et al . (1992) , for review, see de Bodinat et al . (2010) ). In line with this, it was recently shown in

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Brototi Roy Department of Zoology, University of Delhi, Delhi-110 007, India

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Rajeev Singh Department of Zoology, University of Delhi, Delhi-110 007, India

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Sunil Kumar Department of Zoology, University of Delhi, Delhi-110 007, India

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Umesh Rai Department of Zoology, University of Delhi, Delhi-110 007, India

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1988 Changes of phagocytic biological rhythm by reduction of circadian times and by influences upon hypothalamus . International Journal of Neuroscience 41 143 – 153 . Barriga C Martin MI Tabla R Ortega E Rodríguez AB 2001 Circadian

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Lucia Gajdosechova Institute of Experimental Endocrinology, Unit of Physiology, Institute of Organic Chemistry and Biochemistry, Chair of Pharmacology, Slovak Academy of Sciences, Vlarska 3, 83306 Bratislava, Slovakia

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Katarina Krskova Institute of Experimental Endocrinology, Unit of Physiology, Institute of Organic Chemistry and Biochemistry, Chair of Pharmacology, Slovak Academy of Sciences, Vlarska 3, 83306 Bratislava, Slovakia

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Ana Belen Segarra Institute of Experimental Endocrinology, Unit of Physiology, Institute of Organic Chemistry and Biochemistry, Chair of Pharmacology, Slovak Academy of Sciences, Vlarska 3, 83306 Bratislava, Slovakia

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Andrea Spolcova Institute of Experimental Endocrinology, Unit of Physiology, Institute of Organic Chemistry and Biochemistry, Chair of Pharmacology, Slovak Academy of Sciences, Vlarska 3, 83306 Bratislava, Slovakia

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Maciej Suski Institute of Experimental Endocrinology, Unit of Physiology, Institute of Organic Chemistry and Biochemistry, Chair of Pharmacology, Slovak Academy of Sciences, Vlarska 3, 83306 Bratislava, Slovakia

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Rafal Olszanecki Institute of Experimental Endocrinology, Unit of Physiology, Institute of Organic Chemistry and Biochemistry, Chair of Pharmacology, Slovak Academy of Sciences, Vlarska 3, 83306 Bratislava, Slovakia

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Stefan Zorad Institute of Experimental Endocrinology, Unit of Physiology, Institute of Organic Chemistry and Biochemistry, Chair of Pharmacology, Slovak Academy of Sciences, Vlarska 3, 83306 Bratislava, Slovakia

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oxytocin receptors on isolated rat fat cells . European Journal of Biochemistry 56 295 – 303 . ( doi:10.1111/j.1432-1033.1975.tb02233.x ) Bray MS Young ME 2007 Circadian rhythms in the development of obesity: potential role for the circadian

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