WFSC LAGC - SMRB THIRD WORLD CONGRESS OF CHRONOBIOLOGY Program Puebla, México. May 5 to 9, 2011 1 May 6 (Fri) Main Hall 8:30 10:30 Symposium 1. S1.1 Cellular rhythms and neural networks in the mouse suprachiasmatic nucleus. Sato Honma. S1.2 Phosphatase in suprachiamatic nucleus, PHLPP1/SCOP, controls period change after lightinduced phase shift, ‘After-Effect of Phase-Shift’. Satoru Masubuchi. S1.3 Explorations of the circuit structure of the SCN. Rae Silver. Regional period difference that generates a phase gradient in the mammalian circadian center. Yasufumi Shigeyoshi. S1.4 S1.5 Molecular and Network Properties of the Suprachiasmatic Nucleus. Chairpersons: Sato Honma (Japan) and Rae Silver (USA). From Nodes to Networks in the Mammalian Circadian System. Erik D. Herzog. Movie Theater 8:30 10:30 Symposium 2. S2.1 Circadian clocks for all mealtimes: Anticipation of multiple daily meals in rats and mice. Ralph Mistlberger. It is possible to anticipate to pheromones? A study in newborn rabbits fed by enteral nutrition. Ivette Caldelas. S2.2 New insights in the circadian mechanisms regulating food anticipation. Chairperson: Etienne Challet (France). S2.3 Relationship between the Food-Entrainable Oscillator (FEO) and Methamphetamine Sensitive Circadian Oscillator (MASCO). Michael Menaker. S2.4 Food entrainment of peripheral clocks evaluated by in vivo imaging. Yu Tahara. Virtual Room 8:30 10:30 Symposium 3. S3.1 Circadian clocks support health by orchestrating removal of oxidative damage. Jaga Giebultowicz. Brood-related plasticity in circadian rhythms of bumble bee queens. Guy Bloch. S3.3 Role of circadian clocks in fitness and adaptation. Chairperson: Amita Shegal (USA). 2 S3.2 The SCN neuronal network and its adaptation to temporal challenges. Horacio de la Iglesia. S3.4. Diurnal activity in a small desert rodent: mechanisms, adaptations and constraints. Noga Kronfeld-Schor. 10:30 11:00 11:00 11:30 11:30 12:30 Coffee Break (Terrace). Main Hall Historical Lecture. Localization of Function: A Brief History of the Suprachiasmatic Nucleus. Robert Y. Moore. Plenary Lecture. Intramolecular feedback of KaiC ATPase is the basic pacemaker of circadian clock in cyanobacteria. Takao Kondo. 12:30 15:00 Lunch. Virtual Room 15:00 - Symposium 4. 17:00 Molecular and cellular mechanisms of the Drosophila circadian system. Chairpersons: Norio Ishida and Kenji Tomioka (Japan). S4.1 NEMO kinase contributes to core period determination by slowing the pace of the Drosophila circadian oscillator. Paul Hardin. S4.2 Circadian rhythm of Drosophila behavior; different brain-sites required for locomotor and courtship. Norio Ishida. S4.3 A possible synaptic transmission involved in the Drosophila circadian clock. Kenji Tomioka. S4.4 The consequence of arrhythmicity in the German cockroach. How-Jing Lee. Movie Theater 15:00 - Symposium 5. 17:00 Nonphotic Entrainment in Mammals. Chairperson: Roberto Refinetti (USA). S5.1 On the Social Regulation of Circadian Timekeeping. William J. Schwartz. 3 S5.2 Entrainment by food restriction. Jorge Mendoza. S5.3 Entrainment of circadian rhythms by cycles of ambient temperature in mammals. Roberto Refinetti. S5.4 Brain reward: stimulation for nonphotic phase regulation or just a good time? J. David Glass. Main Hall 15:00 - Symposium 6. 17:00 A time to heal: cross-talk between the immune and the circadian systems. Chairperson: Ruud Buijs (México). S6.1 Photoperiodic control of innate and adaptive immunity. Brian Pendergast. S6.2 Dysregulation of Inflammatory Responses by Chronic Circadian Disruption. Alec Davidson. Laborious Phase Shifting (LPS): following the pathways of immune-circadian communication. Diego Golombek. The circadian clock controls the response of T cells to antigen.Nicolas Cermakian. S6.3 S6.4 S6.5 17:00 19:00 Time of infection determines the response of the innate and adaptive immune system. Natali Nadia Guerrero. Poster Session 4 May 7 (Sat) Movie Theater 8:30 10:30 Symposium 7. S7.1 Role of the neuropeptide VIP in the mammalian circadian system. Chris Colwell. S7.2 Neuropeptide modulation of the intracellular calcium concentration of suprachiasmatic nucleus neurons. Charles Allen. S7.3 Heterogeneous and novel electrophysiological actions of orexin-A on circadian clock neurons in mice. Mino Belle. S7.4 Neuropeptides derived from clock-controlled genes as mediating signals for the output of suprachiasmatic clock. Qun-Yong Zhou. Neuropeptides and Circadian Rhythms. Chairperson: Hugh Piggins (UK). Virtual Room 8:30 10:30 Symposium 8. S8.1 Entrainment of the circadian clocks along ontogenesis. Alena Sumova. Maternal melatonin, a chronobiotic for fetal circadian clocks. Maria Seron-Ferre. S8.2 Entrainment of the Circadian Clocks during Development. Chairperson: Alena Sumova (Czech Republic). S8.3 The developing pacemaker: sensitive but resilient. Fred Davis. S8.4 The rabbit pup, a natural model of food entrainment. Mario Caba. Main Hall 8:30 10:30 Symposium 9. S9.1 Circadian system and its disruption; effects on glucose metabolism in humans. Frank Scheer. The metabolic clockwork. Akhilesh Reddy. S9.2 Clock control of glucose metabolism. Chairperson: Andries Kalsbeek (The Netherlands). 5 S9.3 Circadian clocks in adipose tissue. Jeffrey Gimble. S9.4 Hypothalamic neuropeptides involved in the SCN control of hepatic glucose production. Andries Kalsbeek. 10:30 11:00 Coffee Break (Terrace). Main Hall 11:00 11:30 Historical Lecture. History of Chronobiological Societies-Chronobiologists are always looking for the best friend. Ken-ichi Honma. 11:30 12:30 Plenary Lecture. Physiological and metabolic adaptations associated to daytime food synchronization in rat. Mauricio Díaz-Muñoz. 12:30 15:00 Lunch. Virtual Room 15:00 - Symposium 10. 17:00 Retina and Peripheral Clocks. Chairpersons: Mario Eduardo Guido (Argentina) and Ana Maria Castrucci (Brazil). S10.1 S10.2 Light responses in peripheral tissues: how do things change following evolution in perpetual darkness? David Whitmore. Early-stage retinal melatonin synthesis impairment in streptozotocin-induced diabetic Wistar rats. Daniella C. Buonfiglio. S10.3 Circadian Oscillators in Retinal Ganglion Cells. Light and Dopamine Regulation and Intrinsic Photoreceptive Capacity. Mario Eduardo Guido. S10.4 Fish, amphibian and avian cells as peripheral clocks: a comparative approach to study melanopsin signaling and regulation of clock genes. Ana Maria de Lauro Castrucci. Main Hall 15:00 - Symposium 11. 17:00 Seasonal timing of Reproduction in Vertebrates. Chairperson: Valerie Simonneaux (France). S11.1 Tanycytes and RFamides, the new players in seasonal reproduction. Paul Klosen. 6 S11.2 CNS Sites of Melatonin Action for Reproductive and Body Fat Responses in Siberian Hamsters. Timothy J. Bartness. S11.3 Acute Induction of Eya3 by late-night light stimulation triggers Tshβ expression in photoperiodism. Hiroki R. Ueda. S11.4 Photoperiod and the male effect can be used to control the reproductive activity in subtropical goats. Jose Alberto Delgadillo. Movie Theater 15:00 - Symposium 12. 17:00 The pathology of desynchronization. Chairperson: Roberto Salgado-Delgado (México). S12.1 Desynchrony as a tool to investigate the role of the human circadian system in physiology and pathophysiology. Frank Scheer. S12.2 Desynchronized Circadian Rhythms: Bow to the Master. Horacio de la Iglesia. Food as chronotherapy to ameliorate the adaptation to a new time zone. Manuel Angeles-Castellanos. Nightwork leads to obesity and diabetes: a rat model of nightwork uncovers internal desynchrony at the level of the hypothalamus and within the liver. Roberto Salgado-Delgado. S12.3 S12.4 17:00 19:00 Poster Session Virtual Room 18:00 19:00 WFSC Business Meeting 7 May 8 (Sun) Movie Theater 8:30 10:30 Symposium 13. S13.1 Daily rhythms in olfactory discrimination depend on clock genes, but not the suprachiasmatic nucleus. Daniel Granados. S13.2 The cerebellum; a circadian oscillator synchronized by food. Jorge Mendoza. Dopaminergic modulation of clock mechanisms. Suzanne Hood. Putative circadian oscillators in the epithalamus and hypothalamus. Hugh Piggins. S13.3 S13.4 Physiological correlates and mechanisms of circadian brain oscillators beyond the SCN. Chairperson: Oscar Castanon (EUA). Main Hall 8:30 10:30 Symposium 14. S14.1 The consequences of dys-entrainment. Till Roenneberg. On the evolution of Drosophila blue light photoreceptor CRYPTOCHROME and its relation to the visual system. Gabriella M. Mazzotta. S14.2 The Importance of Being Entrained. Chairperson: Martha Merrow (The Netherlands). S14.3 The early worm catches the light (and the heat): circadian entrainment in C. elegans. Diego Golombek. S14.4 Protein phosphatase 1 (PP1) regulates period length and phase resetting of the mammalian circadian clock. Urs Albrecht. Virtual Room 8:30 10:30 Symposium 15.The mammalian circadian timing system: Hormonal key S15.1 HSD3B1: a new enzyme linking circadian clock and hypertension. Hitoshi Okamura. mechanisms involved in organization and coordination of central and peripheral clocks. Chairperson: Paul Pévet (France). 8 S15.2 Physiology of the adrenal circadian clock. Henrik Oster. S15.3 Glucocorticoid regulation of clock gene expression in the mammalian brain. Lauren Segall. S15.4 Melatonin, an endocrine output of the central clock involved in the regulation of human circadian rhythms. Bruno Claustrat. 10:30 11:00 Coffee Break (Terrace). Main Hall Historical Lecture. 11:00 11:30 Persistent, Endogenous, Innate, Precise: On the early history of some key concepts in circadian rhythms. Serge Dann. 11:30 12:30 12:30 15:00 Plenary Lecture. Circadian control of output in Drosophila. Fernanda Ceriani. Lunch. Main Hall 15:00 - Symposium 16. 17:00 Circadian regulation of behaviors in mammals. Chairpersons: Ken-ichi Honma (Japan) and Horacio de la Iglesia (USA). S16.2 The master and slave oscillators for behavioral rhythms in mice. Yujiro Yamanaka. S16.3 A functional property of circadian pacemakers which control behavioral rhythms. Wataru Nakamura. S16.4 Temporal nice switching in the house mouse: why and how? Roelof A. Hut. S16.5 The role of the habenula in the regulation of locomotor activity. Mathew J. Paul. Movie Theater 15:00 - Symposium 17. 17:00 Nutrients and palatable snacks the dissection of brain and peripheral oscillators. Chairperson: Carolina Escobar (México). S17.1 DMH-SCN interaction permits food anticipatory behavior during the rest phase. Ruud Buijs. 9 S17.2 Role of food components in entrainment of mouse liver clock. Shigenobu Shibata. S17.3 “Sweet transition” of neuronal activity induced by entrainment on palatable food. Elena Timofeeva. S17.4 Gut peptides are not necessary for food anticipatory activity induced by a highly palatable meal.Megan Dailey. Virtual Room 15:00 - Symposium 18. 17:00 Roles for Glial Cells in the Circadian Neural Circuitry. Chairperson: Rob Jackson (USA). S18.1 Circadian Rhythms in Glial Calcium Signaling Mediate Rhythmic Extracellular ATP Accumulation in the Suprachiasmatic Nucleus. Mark Zoran. S18.2 Astrocyte-astrocyte communication and connexin 43 regulate mammalian circadian rhythms. Luiciano Marpegan. S18.3 Adult glial cells modulate the circadian neuronal circuit. Rob Jackson. S18.4 The involvement of glia in the circadian regulation of neuronal morphology. Elżbieta Pyza. 17:00 19:00 Poster Session 10 May 9 (Mon) Virtual Room 8:30 10:30 Symposium 19. S19.1 Circadian regulation of sensory processing. Erik Herzog. S19.2 Circadian Regulation of Olfactory Sensitivity and Olfactory Behavior in the Cockroach, Leucophaea maderae. Terry Page. Circadian rhythm in olfaction in a subterranean organism. Martha Merrow. Circadian gating of photic inputs in plants. Andrew Millar. Circadian Modulation of Simple and Selective Attention in Humans. Ken Wright. S19.3 S19.4 S19.5 Circadian regulation of sensory processing. Chairperson: Erik Herzog (USA). Movie Theater 8:30 10:30 Symposium 20. S20.1 Tracking phase in a network of heterogeneous SCN cells. Stephanie Taylor. Applying Wavelet Transforms to Circadian Data. Tanya Leise. New methods of analysis for Chronobiology: complexity, fractals, dimensions, recurrence plots. Díez-Noguera. S20.2 S20.3 S20.4 Quantitative analysis of rhythmic data. Chairperson: Mary Harrington (USA). Modeling entrainment of the mammalian circadian clock. Adrián Granada. Main Hall 8:30 10:30 Symposium 21. S21.1 Effects of PERIOD3 polymorphism on circadian rhythmicity and sleep homeostasis in healthy older individuals. Antoine Viola. Involvement of clock genes in sleep homeostasis in mice. Valerie Mongrain. S21.2 Inter-Individual Variability in Circadian rhythms and Sleep homeostasis. Chairperson: Antoine Viola (Switzerland). 11 S21.3 Functional genetic polymorphisms of BDNF and ADA modulate sleep and neurobehavioral performance during. Valérie Bachmann. S21.4 Interaction of non-circadian effects of light with circadian rhythm and sleep homeostasis. Patrice Bourgin 10:30 11:00 Coffee Break (Terrace). Main Hall 11:00 11:30 Historical Lecture. Serendipity or "the prepared mind": the true history of some discoveries in the Menaker lab. Michael Menaker. 11:30 12:30 Plenary Lecture. Sociobiology of human timing. Till Roenneberg. 20:00 23:00 Closing Dinner 12 Poster program May 6 – 8 17:00 – 19:00 13 May 6 P001 WINTER LIGHTING CONDITIONS ACCELERATE RE-ENTRAINMENT TO SIMULATED TIME ZONE TRAVEL IN HAMSTERS Elizabeth M. Harrison, Michael R. Gorman. P002 AFTEREFFECTS OF ENTRAINMENT IN THE FIELD PROVIDE NEW INSIGHTS INTO THE SWITCH FROM DIURNALITY TO NOCTURNALITY IN THE SUBTERRANEAN RODENT TUCO-TUCO (Ctenomys Cf. Knight) Barbara Mizumo Tomotani, Danilo Eugênio de França Laurindo Flôres, Patricia Tachinardi, José Demetrio Paliza, Gisele Akemi Oda, Verónica Sandra Valentinuzzi. P003 OVERWEIGHT REDUCES ENTRAIMENT EFICIENCY OF LOCOMOTOR ACTIVITY IN THE VOLCANO MOUSE NEOTOMODON ALSTONI Vania Patricia Carmona Alcocer, Manuel Miranda Anaya. P004 WAVELENGTH DEPENDENCE FOR EFFECTS OF DIM SCOTOPHASE ILLUMINATION ON CIRCADIAN WAVEFORM AND REENTRAINMENT IN SIBERIAN HAMSTERS Michael R. Gorman, Jeffry A. Elliott. P005 SHORT-DAY RESPONSE IN DJUNGARIAN HAMSTERS DISPLAYING DIFFERENT CIRCADIAN PHENOTYPES Dietmar Weinert, Konrad Schöttner, Maren Schmidt. P006 REORGANIZATION OF THE MAMMALIAN PACEMAKER UNDER ULTRA LONG DAY LENGTHS PROVIDES AN ASSAY FOR OSCILLATOR COUPLING Jennifer A. Evans, Tanya L. Leise, Oscar Castanon-Cervantes, Alec J. Davidson. P007 LOCOMOTOR ACTIVITY AND SLEEP RHYTHMS IN THE MONGOLIAN GERBIL MERIONES UNGUICULATUS ARE DIFFERENTIALLY AFFECTED BY SHORT AND LONG PHOTOPERIOD Cinthia Rocío Juárez-Tapia, Pilar Duran, Manuel Miranda-Anaya. P008 PHOTOPERIODIC WAVEFORM AND AMPLITUDE REGULATION OF MAMMALIAN PHASE RESPONSE CURVES Jeffrey A Elliott, Michael R Gorman. P009 EFFECT OF DIFFERENT PHOTOPERIODS ON THE RHYTHMIC INDUCTION OF HYPOXIAINDUCIBLE FACTOR-1 AND HEAT SHOCK PATHWAY Rosa María Velázquez-Amado, Elsa G. Escamilla-Chimal, Ana Gabriela García-Tecpan, María Luisa Fanjul-Moles. P010 PERIOD 1 GENE EXPRESSION IN THE BRAIN OF A DUAL PHASING RODENT, THE OCTODON DEGUS Beatriz B Otalora, Megan H Hagenauer, Maria Angeles Rol, Juan Antonio Madrid, Theresa M Lee. P011 LIGTH/DARK CYCLE AND CLOCK GENES Mario Pedrazzoli. 14 P012 EFFECT OF EXPERIMENTAL GLAUCOMA ON THE NON-IMAGE FORMING VISUAL SYSTEM P013 Nuria M. A. de Zavalía, Santiago A Plano, Diego C Fernandez, María Florencia Lanzani, Ezequiel Salido, Nicolás A Belforte, María Inés Keller Sarmiento, Diego A Golombek, Ruth E Rosenstein. PINEAL CHRONOBIOLOGY, SUNSPOTS AND GEOMAGNETIC STORMS José Luis Bardasano Rubio, José Luis Aldeanueva Aguirre, José Luis Arranz, Juan Álvarez-U de la Torre, Miguel Raposo Sánchez. P014 POSTEMBRYONIC MATURATION OF THE DIURNAL RHYTHM OF PINEAL MELATONIN BIOSYNTHESIS PATHWAY IS SEASON-DEPENDENT IN CHICKEN KEPT IN CONTROLLED LABORATORY CONDITIONS Aneta Piesiewicz, Urszula Kedzierska, Krystyna Zuzewicz, Krystyna Skwarlo-Sonta, Pawel Marek Majewski. P015 THE DAILY MELATONIN PATTERN IN DJUNGARIAN HAMSTERS IS DEPENDING ON THE CIRCADIAN PHENOTYPE Dietmar Weinert, Konrad Schöttner, Valérie Simonneaux, Patrick Vuillez, Stephan Steinlechner, Paul Pévet. P016 ENVIRONMENTAL FACTORS AFFECTING THE ROOSTING BEHAVIOR OF INDIAN CLIFF SWALLOW HIRUNDO FLUVICOLA Arati Singh, Shrutika Kankariya, Arti Parganiha, A. K. Pati. P017 ROOSTING BEHAVIOR OF INDIAN HOUSE SWIFT, APUS AFFINIS WITH REFERENCE TO ENVIRONMENTAL FACTORS Shrutika Kankariya, Arati Singh, A. K. Pati, Arti Parganiha. P018 THE CIRCADIAN BODY TEMPERATURE RHYTHMS OF DJUNGARIAN HAMSTERS REVEAL DIFFERENT CIRCADIAN PHENOTYPES Dietmar Weinert, Konrad Schöttner, Jim Waterhouse. P019 MOTOR ACTIVITY OF MANATEE (Trichechus manatus manatus) IN SEMI-CAPTIVITY CONDITIONS: PRELIMINARY RESULTS Victoria Eugenia Holguín, Victor Manuel Alcaraz, Jairo Ignacio Muñoz. P020 YAWNING AND PENILE ERECTION OSCILLATES ALONG THE CIRCADIAN CYCLE IN THE HY SUBLINE José R. Eguíbar, Ma. Del Carmen Cortés, Araceli Ugarte. P021 CRONOECOLOGY OF REST-ACTIVITY RHYTHM AND THE BEHAVIORS OF THE SPIDER MONKEY Ateles geoffroyi IN SEMI-LIBERTY: A ELECTRIFIED ENCLOSURE José Carlos Sánchez-Ferrer, Domingo Canales-Espinoza, Ana María Santillán-Doherty, Jairo Muñoz-Delgado. P022 CIRCADIAN VARIATION IN SHORT -TIME ESTIMATION AND THYROID HORMONES LEVELS IN YOUNG HUMANS DURING 30 H CONSTANT ROUTINE Babita Pande, Atanu Kumar Pati, Arti Parganiha, Pradeep Kumar Patra. P023 THE CIRCADIAN SYSTEM INLFUENCES SHORT-TIME PERCEPTION Patricia V. Agostino, Ivana L. Bussi, Micaela do Nascimento, Diego A. Golombek. 15 P024 DIURNAL VARIATIONS IN THE LEARNING OF A MOTOR SKILL Alejandra Galeana Garcia, Georgina Almeida Rosas, Maribel Delgado Herrera, Raúl Aguilar Roblero, Alejandra Ruiz Contreras. P025 CIRCADIAN VARIATIONS IN COGNITIVE INHIBITION AND FLEXIBILITY Benito Martínez, Aída García, Javier Talamantes, Candelaria Ramírez, Pablo Valdez. P026 CIRCADIAN VARIATIONS IN ALERTNESS Javier Talamantes López, Aida García García, Candelaria Ramírez Tule, Pablo Valdez Ramírez. P027 THE VALUE OF MONITORING AMBULATORY BLOOD PRESSURE IN OLD PEOPLE Zi Yan Zhao, Zhi Hui Yan, Yue Rong Fu. P028 ASSOCIATION OF CIRCADIAN ACTIVITIES, SLEEP, AND QUALITY OF LIFE IN CHINESE CENTENARIANS Zi Yan Zhao, Zhi Hui Yan, Yue Rong Fu, Feng Zhang. P029 SLEEP-WAKE CYCLE AND ACTIVITY-REST CYCLE IN ELDERLY PEOPLE Anahí Flores, Xóchitl Angélica Ortiz, Minerva Aída García, Candelaria Ramírez, Pablo Valdez. P030 SERUM FACTORS CHANGE CELLULAR CLOCK PROPERTIES IN OLDER INDIVIDUALS Lucia Pagani, Karen Schmitt, Fides Meier, Jan Izakovic, Ermanno Morriggi, Konstanze Romer, Antoine Viola, Christian Cajochen, Anna Wirz-Justice, Anne Eckert, Steven A. Brown. P031 CIRCADIAN RHYTHMS AND TIME ESTIMATION IN HEALTHY YOUNG AND ELDERLY HUMANS Mario Leocadio Miguel, Luiz Menna-Barreto. P032 CIRCADIAN BLOOD PRESSURE VARIABILITY AMONG SOUTHEAST INDIAN POPULATION AS FUNCTION OF AGE, GENDER AND DIPPING PATTERN Nishtha Vaidya, Atanu Kumar Pati, Arti Parganiha. P033 EFFECTS OF A 30-MINUTES ADVANCE IN SCHOOL SCHEDULE ON SUSTAINED ATTENTION IN CHILDREN Juventino Cortez, Diana Juárez, Jorge Borrani, Aida García Candelaria Ramírez, Pablo Valdez. P034 CHRONOTYPE ASSESSMENT: VALIDATION OF THE MCTQ IN A SAMPLE OF UNIVERSITY STUDENTS FROM BRAZIL Marilene Farias Alam, Karla V. Allebrandt, Mabel Mascarenhas Wiegand, Giovana Dantas, Rosa Maria Levandovski, Rosana Mendonça de Souza, Maria Paz Hidalgo. P035 CHRONOTYPES: A CORRELATION WITH EATING BEHAVIOR Ana Beatriz Harb, Wolnei Calmo, Rosa Maria Levandovski, Ceres Oliveira, Kelly Allison, Albert Stunkard, Maria Paz Hidalgo. P036 LIGHTING AND HEALTH: CASE STUDY IN RETAIL STORES Betina Tschiedel Martau, Maria Paz Hidalgo. P037 SLEEP PATTERNS AND RISK FACTORS FOR METABOLIC SYNDROME AMONG PROFESSIONAL PUBLIC TRANSPORT DRIVERS Ma. Elena Durán Lizárraga, Juan Manuel Ponce, Miguel Ángel Palomino Garibay. 16 P038 MORNINGNESS–EVENINGNESS, USE OF STIMULANTS, AND MINOR PSYCHIATRIC DISORDERS AMONG UNDERGRADUATE STUDENTS Giovana Dantas, Marcia L. M. Schneider, Denise C. Vascincelos, Rosa Levandovski, Wolnei Caumo, Karla V. Allebrandt, Marlene Doring, Maria Paz L. Hidalgo. P039 CIRCADIAN CLOCK GENE EXPRESSION IN BRAIN REGIONS OF ALZHEIMER'S DISEASE PATIENTS AND CONTROL SUBJECTS Nicolas Cermakian, Elaine Waddington Lamont, Philippe Boudreau, Diane B. Boivin. P040 DO NOT MESS WITH YOUR BIOLOGICAL CLOCK: SEIZURE AGGRAVATION AFTER THE PHASE SHIFT Magdalena Kinga Smyk, Anton Coenen, Marian Henryk Lewandowski, Gilles van Luijtelaar. P041 6-SULFATOXIMELATONIN AS A PREDICTOR OF CLINICAL OUTCOME IN DEPRESSIVE PATIENTS TREATED WITH INHIBITORS Maria Paz Hidalgo, Wolnei Caumo, Giovana Dantas, Daiane Franco, Iraci Trres, Regina P Markus. P042 CIRCADIAN RHYTHM OF ENERGY EXPENDITURE AND CONSUMPTION OF OXYGEN BY INDIRECT CALORIMETRY IN ENTERAL NUTRITION THERAPY Marlene Pooch Leuck, Rosa Maria Levandovski, Claudia Will Machado, Maria Paz Loayza Hidalgo. P043 PRETERM INFANTS HAVE IMPROVED GROWTH IN LIGHT/DARK CYCLE COMPARED WITH CONTINUOUS BRIGHT LIGHT Samuel Vásquez, Manuel Ángeles-Castellanos, Carolina Escobar. P044 CHRONOBIOLOGIC VISCUM ALBUM STUDY IN BREAST CANCER Abuín A. Abuin Landín, Luis Menna Barreto. P045 DISCUSSION ABOUT THE INTERACTION BETWEEN DRUGS AND HUMAN BODY BIOLOGICAL CLOCK Feng Xiu Jie, Zhuang Hong Yan. May 7 P046 CUSTOM-MADE SOFTWARE FOR DIGITAL SIGNAL ANALYSIS ON CHRONOBIOLOGY Arturo Vega-González, Raúl Aguilar-Roblero. P047 THEORETICAL INVESTIGATION FOR THE ORIGIN OF THE ASYMMETRIC RESYNCHRONIZATION AFTER AN ABRUPT SHIFT OF THE LIGHT: DARK CYCLE Takeshi Asakawa, Satoshi Koinuma, Koh-hei Masumoto, Mamoru Nagano, Yasufum Shigeyoshi. P048 FLYING MICE: INTERNAL FORCED DESYNCHRONIZATION IN A MURINE MODEL OF CHRONIC JET-LAG Leandro Pablo Casiraghi, Gisele Akemi Oda, Juan José Chiesa, Wolfgang Otto Friesen, Diego Andrés Golombek. 17 P049 A SUBTERRANEAN RODENT’S “NATURAL ENTRAINMENT” 1 Danilo Eugênio de França Laurindo Flôres, 1Barbara Mizumo Tomotani, 1Patricia Tachinardi, Gisele Akemi Oda, 2Verónica Sandra Valentinuzzi. 1 P050 PERIOD-2 INTEGRATES BOTH CIRCADIAN AND HOMEOSTATIC ASPECTS OF SLEEP REGULATION Thomas Curie, Valérie Mongrain, Stephane Dorsaz, Yann Emennegger, Paul Franken. P051 NON-LINEAR DYNAMICS OF HEART RATE VARIABILITY SHOW SLEEP-WAKE HOMEOSTATIC PREDOMINANCE DURING SUSTAINED WAKEFULNESS Antoine U. Viola. P052 CHANGES OF DISTAL SKIN TEMPERATURE AND SUBJECTIVE SLEEPINESS UNDER MIDDAY BRIGHT LIGHT EXPOSURE Nana N. Takasu, Hisayo Nishida, Akiko Nitta, Kana Nishimura, Tomoko Wakamura. P053 ACTIGRAPHY AND SLEEP LOGS IN NEWBORNS: DIFFERENT RESULTS ACCORDING TO AGE Clarissa Bueno, Luiz Menna-Barreto. P054 CHARACTERIZATION OF THE SLEEP-WAKE CYCLE IN KINDERGARTEN CHILDREN THAT ATTENDED SCHOOL IN THE MORNING IN NATAL, BRAZIL Aline Silva Belísio, Fernanda Fernandes Kolodiuk, Jane Carla Souza, Zoélia Moura Bessa, Deyse Silva Bezerra, Geilson Lima Araújo, Ivanise Sousa Guimarães, Fernando Mazzilli Louzada, Carolina Macedo Azevedo. P055 CHARACTERIZATION OF SLEEP-WAKE CYCLE, DAYTIME SLEEPINESS AND SLEEP QUALITY OF BRAZILIAN HIGH-SCHOOL TEACHERS Carolina Virginia Macédo de Azevedo, Jane Carla Souza, Aline Silva Belãsio, Zoília Camila Moura Bessa, Ivanise Cortez de Sousa Guimarães. P056 EFFECTS OF 24-H SLEEP DEPRIVATION ON ATTENTION Juventino Cortez Diana Juárez, Aida García, Candelaria Ramírez, Pablo Valdez. P057 EFFECTS OF SLEEP REDUCTION ON THE COMPONENTS OF ATTENTION Diana Juárez, Martha Guerrero, Layla Arroyo, Juventino Cortez, Aida García, 6) Candelaria Ramírez, Pablo Valdez. P058 EFFECTS OF SLEEP DEPRIVATION ON WORKING MEMORY Jacqueline Del Ángel, Ana Gabriela Iracheta, Diana Juárez, Juventino Cortez, Aida García, Candelaria Ramírez, Pablo Valdez. P059 APPLY TCM CHRONOBIOLOGY TO REGULATE SLEEP RHYTHMS Feng Xiu Jie, Zhuang Hong Yan. P060 SLEEP HABITS, CHRONOTYPES AND OBESITY/OVERWEIGHT IN MEDICAL STUDENTS AT UNAM Eduardo González, Donají Heredia, Carolina Escobar. P061 DETECTION OF CHRONO PREMETABOLIC SYNDROME IN DIFERENT MEXICAN POPULATIONS Salvador Sánchez-de la Peña, Franz Halberg, Jonathán Levi Rito-Medina, Irene MendozaLujambio, Germaine Cornélissen, Alfonso López-Fiesco. 18 P062 SLEEP COMPLAINTS AND ITS RELATIONSHIP TO DAYTIME SLEEP AND ACTIGRAPHIC PARAMETERS IN CIRRHOTIC PATIENTS: AN EXPLORATORY STUDY Montserrat Concepción Reséndiz Garcìa, Aldo Torre, Violeta Alejandra Castaño Meneses, Andrés Duarte Rojo, Maria Victoria Santiago Ayala, Demian Gil Aldeco, Arturo Vega González, Guillermo Garcìa Ramos, Matilde Valencia Flores. P063 DETERIORATION OF SLEEP QUALITY AMONG IN HABITANTS OF CHHATTISGARH Ms. Chaynika Nag, Dr. R. K. Pradhan. P064 RELATIONSHIP BETWEEN SOCIAL RHYTHM, SLEEP PHASE AND MINOR PSYCHIATRIC SYMPTOMS IN HEALTHY WORKERS Regina Lopes Schimitt, Rosa Levandovski, Maria Paz Loayza Hidalgo. P065 DECREASE OF EVENING PLASMA PROLACTIN IN THE DELAYED SLEEP PHASE SYNDROME. IS A HYPERTONIC DOPAMINERGIC SYSTEM INVOLVED? Bruno Claustrat, Helène Bastuji, Laure Peter-derex, Thierry Petitjean, Françoise BorsonChazot, Jocelyne Brun. P066 PHARMACOLOGICAL TREATMENT ASSESSMENT WITH MARTAZAPINE ON SLEEP QUALITY OF GERIATRIC PATIENTS WITH MAJOR DEPRESSION: AN ACTIGRAPHY TEST Betty Marjorie Rothschild-Fuentes, Jairo Muñoz-Delgado, Alejandro Jiménez-Genchi, José Carlos Sánchez-Ferrer, Andrés Roche-Bergua. P067 GLYCEMIC CONTROL AFFECTS SLEEP INITIATION AND SLEEP QUALITY IN T1DM Mark Thomas Ugliara Barone, D R Franco, M K Carra, Fabiola Schorr, Geraldo Lorenzi, Luiz Menna-Barreto. P068 THE ASSOCIATION AMONG SLEEP QUALITY AND MID-SLEEP PHASE WITH USE OF ANTIHYPERTENSIVE DRUGS Rosa Maria Levandovski, Till Roenneberg, Karla Viviani Allebrandt, Maria Paz Loayza Hidalgo. P069 THE IMMOBILITY EPISODES OF TAIEP RATS HAVE ULTRADIAN EXPRESSION Ma. del Carmen Cortés, Lara, José R. Eguíbar. P070 THE SPIKE-WAVE DISCHARGES IN THE MYELIN MUTANT TAIEP RAT HAVE A CIRCADIAN RHYTHM Jackeline Corona, Ma. del Carmen Cortés, José R. Eguíbar. P071 DEPENDENCE ON TIMING OF 2-AG ADMINISTRATION INTO THE LATERAL HYPOTHALAMUS TO MODIFY THE SLEEP WAKING CYCLE OF RATS Mauricio Marcel Pérez-Morales, Seraid Caynas, Ilia Alvarado, Mónica Méndez-Díaz, Oscar Prospero-García. P072 DIFFERENCES IN SLEEP AND DAILY METABOLIC PROFILES BETWEEN OVERWEIGHED AND NORMAL MICE NEOTOMODON ALSTONI Citlalli Fuentes Granados, Pilar Durán, Manuel Miranda Anaya. P073 EFFECT OF TOTAL SLEEP DEPRIVATION ON THE EXPRESSION OF NEUROGLOBIN IN THE ADULT RAT BRAIN Montserrat Alheli Melgarejo, Eva Acosta Peña, Arturo Venebra Muñoz, Fabio García García. 19 P074 CEREBRAL ELECTROPHYSIOLOGICAL ACTIVITY INDUCED BY SYSTEMIC INFLAMMATORY RESPONSE SYNDROME (SIRS) Francisco Nachón García, Juan Santiago García, Alberto de la Herrán Arita, Armando Martínez Chacón, René Drucker Colín, Fabio García García. P075 CIRCADIAN CLOCK AND CELL CYCLE COUPLING IS REQUIRED FOR CORRECT WOUND HEALING Elzbieta Kowalska, Pascal Bruegger, Dominik Hoegger, Juergen Ripperger, Thorsten Buch, Anke Mueller, Achim Kramer, Urs Albrecht, Thomas Birchler, Claudio Contaldo, Steven A. Brown. P076 ACUTE COCAINE IMPAIRS ADULT CIRCADIAN CLOCK PHASE REGULATION: INVOLVEMENT OF THE PER2 CLOCK GENE Adam C. Stowie, Allison J. Brager, Rebecca A. Prosser, Dave J. Glass. P077 DAILY TIMING OF CHRONIC INTERMITTENT ALCOHOL EXPOSURE AND WITHDRAWAL DIFFERENTIALLY DISRUPTS CIRCADIAN BODY TEMPERATURE RHYTHMS IN C57BL/6 MICE Susan Amanda Sinning, Michael R. Gorman. P078 CIRCADIAN GENE MODULATION AND BRAIN SITES OF ACTION IN ACAMPROSATE SUPPRESSION OF ALCOHOL INTAKE AND CRAVING Allison Joy Brager, Rebecca A Prosser, J. David Glass. P079 HYPOTHALAMIC CONTROL OF BLOOD PRESSURE: A ROLE FOR THE BIOLOGICAL CLOCK Frederik Buijs, Mari Carmen Basualdo, Carolina Escobar, Ruud Buijs. P080 EXPERIMENTAL CHRONIC JET LAG PROMOTES GROWTH AND LUNG METASTASIS OF LEWIS LUNG CARCINOMA IN C57BL/6 MICE Mingwei Wu, Jing Zeng, Zhaolei Zeng, Lijian Xian. P081 EFFECT OF LIGHT/DARK CYCLE ON SEIZURE SEVERITY AND HIPPOCAMPAL NEURONAL CELL DEATH INDUCED BY STATUS EPILEPTICUS IN THE DEVELOPING RAT Dulce Mariely Álvarez-Croda, María Leonor López-Meraz. P082 EFFECTS OF PRENATAL EXPOSURE TO VALPROIC ACID ON ULTRASONIC VOCALIZATIONS OF RAT DURING LACTANCY PERIOD Paul Saft, Jorge Manzo, Consuelo Morgado-Valle, Luis Beltrán-Parrazal, María Elena Hernández, Brenda Brug, Luis Isauro García, Rebeca Toledo. P083 DIURNALLY OR NOCTURNALLY ELICITED SYSTEMIC INFLAMMATION DOWN REGULATES AANAT GENE EXPRESSION IN THE CHICKEN PINEAL GLAND Krystyna Skwarlo-Sonta, Urszula Kedzierska, Aneta Piesiewicz, Alicja Olesiejuk, Maria Waloch, Pawel Marek Majewski. P084 A CIRCADIAN CLOCK REGULATES SWIMMING DIRECTION OF ERETMOCHELYS IMBRICATA HATCHLINGS (HAWKSBILL MARINE TURTLE) Kristel Lorena Gopar-Canales, Manuel Miranda-Anaya. 20 P085 SIXTH ABDOMINAL GANGLION MODULATES THE CIRCADIAN RHYTHMS OF LOCOMOTOR ACTIVITY AND ABDOMINAL POSTURE IN CRAYFISH Leonardo Rodríguez Sosa, Gabina Calderon Rosete. P086 SCN DRIVEN CHANGES IN THE ACTIVATION OF ARCUATE NUCLEUS ΑMSHNEURONS Mara Alaide Guzmán Ruiz, Guadalupe Acosta Galván, Daniela Herrera-Moro Chao, Ma. Carmen Basualdo Sigales, Carolina Escobar Briones, Ruud Buijs. P087 EXPLANATION AND PREDICTION OF PRCS WITH MAMMALIAN CIRCADIAN CLOCK MODEL Jaekyoung Kim and Daniel B. Forger. P088 HOW CORTICO – BASAL GANGLIA – THALAMOCORTICAL NETWORK CAN INFLUENCE RATE OF "INTRINSIC CLOCK” Izabella G. Silkis. P089 THE PARTICIPATION OF THE VAGUS NERVE IN THE REGULATION OF OVARIAN FUNCTIONS DEPENDS ON DAY THE ESTROUS CYCLE AND TIME OF THE DAY Pamela María Everardo, María Guadalupe Gúzman, Carlos Abraham García, Angélica Flores, María Esther Cruz, Roberto Domínguez. P090 THE ROLE OF KISS1 NEURONS IN CIRCADIAN-TIMED LUTEINIZING HORMONE SURGES IN SHORT DAY FEMALE HAMSTERS Azim R Khan, Eric C Ku, R. Gorman, Alexander S Kauffman. May 8 P091 MODULATION OF THE CIRCADIAN RHYTHM OF BODY TEMPERATURE BY INTENSE ACTIVITY IN A SUBTERRANEAN RODENT (CTENOMYS CF. KNIGHTI) Patricia Tachinardi, Barbara Mizumo Tomotani, Danilo Eugénio de França Laurindo Flôres José Eduardo Pereira Wilken Bicudo, Verónica Sandra Valentinuzzi, Gisele Akemi Oda. P092 SOCIAL INTERACTION ALTERS CIRCADIAN RHYTHM MANIFESTATION IN RATS SUBMITTED TO CONSTANT LIGHT Antoni Diez-Noguera, Lucia Castejon, Trinitat Cambras. P093 COMPARATIVE ANALYSIS OF CIRCADIAN RHYTHMS OF THE MOSQUITOES AEDES AEGYPTI AND CULEX QUINQUEFASCIATUS UNDER TEMPERATURE CYCLES Gustavo Bueno Rivas, Carla Gentile, Alexandre Afranio Peixoto. P094 RAT LIVER GABAERGIC SYSTEM CHARACTERIZACTION DURING FOOD ENTRAINABLE OSCILLATOR EXPRESSION Olivia Vázquez Martínez, Mónica Villalobos Leal, Isabel Mendez, Diego Hernández Saavedra, Mauricio Díaz Muñoz. P095 BEHAVIORAL AND TEMPERATURE CHANGES THAT PRECEDE FOOD ENTRAINMENT Dulce María Palomares-Vázquez, Estefa Espitia, Rodrigo Ivan Osnaya, Carolina Escobar. 21 P096 EXPECTATION FOR PALATABLE FOOD. A PROCESS THAT IS GENERATED GRADUALLY IN THE BRAIN Aurea Susana Blancas Velázquez, Katia Rodríguez Gonzales, Carolina Escobar Briones. P097 REGULATION OF HEPATIC MITOCHONDRIAL BETA-OXIDATION DURING THE EXPRESSION OF THE FOOD ENTRAINED OSCILLATOR Julieta Rivera, Mauricio Díaz. P098 STUDY OF THE ZONAL DISTRIBUTION OF LIVER PER1 PROTEIN DURING THE EXPRESSION OF THE FEEDING ENTRAINABLE OSCILLATOR Dalia Luz De Ita, Mauricio Diaz. P099 SUB CELLULAR LOCALIZATION AND RELEASE OF THE MITOCHONDRIAL ENZYME ORNITHINE TRANSCARBAMYLASE, IN RAT LIVER DURING THE EXPRESSION OF THE FOOD ENTRAINED OSCILLATOR Braulio Ayala-García, Mauricio Díaz-Muñoz. P100 DIFFERENTIAL INVOLVEMENT OF OREXIN CELLS IN FOOD ENTRAINMENT Angeles Jiménez, Mario Caba, Carolina Escobar. P101 NURSING TIME SYNCHRONIZES THE EXPRESSION OF PER1 PROTEIN IN THE PREOPTIC AREA AND BED NUCLEUS OF THE STRIA TERMINALIS OF THE FEMALE RABBIT José Enrique Meza, Rossana Zepeda, Mercedes Acosta, Stefan Walisewski, Mario Caba. P102 FUNCTIONAL ADAPTATION OF THE GHRELIN-GROWTH HORMONE-IGF-1 AXIS DURING THE EXPRESSION OF THE FOOD ENTRAINED OSCILLATOR Elvira Arellanes-Licea, Martha Carranza, Maricela Luna, Mauricio Díaz-Muñoz. P103 SCHEDULED FEEDING DOES NOT REENTRAIN THE ESTROUS CYCLE IN FEMALE WISTAR RATS MAINTAINED IN CONSTANT LIGHT Donají Heredia García, Mariana Pliego Caballero, Isabel García-Peláez, Carolina Escobar Briones. P104 DAYTIME RESTRICTED FOOD SCHEDULE CHANGED THE HEPATIC ZONATION OF THE PHOSPHOENOLPYRUVATE CARBOXYKINASE Moisés Pérez-Mendoza, Mauricio Díaz-Muñoz. P105 GLUCOCORTICOID RECEPTOR SIGNALING IS MODIFIED BY RESTRICTED FEEDING Alma Dalia Luna, Mauricio Díaz. P106 INDUCTION OF FOS AND PER1 PROTEINS IN THE MAIN OLFACTORY BULB OF RABBIT PUPS IN RELATION TO SCHEDULED NURSING Nahum Nolasco, Enrique Meza, Mario Caba. P107 REFEEDING AFTER FASTING ELICITS INSULIN-DEPENDENT REGULATION OF PER2 AND REVERBA WITH SHIFTS IN LIVER CLOCK Yu Tahara, Makiko Otsuka, Yuta Fuse, Akiko Hirao, Shigenobu Shibata. 22 P108 RABBIT NURSING SHOWS CIRCADIAN PERIODICITY AND IS MODULATED BY SUCKLING STIMULATION CHARACTERISTICS Gabriela González-Mariscal, Ana Celia Lemus, Raúl Aguilar-Roblero. P109 THE SUPRACHIASMATIC NUCLEUS IS NECESSARY FOR CHOCOLATE ENTRAINMENT Katia Rodríguez González, Aurea Susana Blancas, Manuel Ángeles Castellanos, Carolina Escobar. P110 DAILY RHYTHM OF BLOOD GLUCOSE INCREASE BY HIGH OR LOW DIGESTIBLE STARCH INTAKE IN NORMAL MICE AND MICE WITH RESTRICTED FEEDING PARADIGM Akiko Hirao, Misa Itokawa, Hiroki Nagahama, teiji Outsu, Takuma Imanishi, Ayako Shinozaki, Yu Tahara, Shigenobu Shibata. P111 DO NEWBORN RABBITS BEARING SUPRACHIASMATIC NUCLEI LESIONS ANTICIPATE TO NURSING? Oscar Hernández-Campos, Rodrigo Montúfar-Chaveznava, Ivette Caldelas. P112 DOES THE OLFACTORY BULB OF NEWBORN RABBITS EXHIBIT TIME DEPENDENT RESPONSES TO THE MATERNAL PHEROMONE 2MB-2? Lucero Anabel Trejo-Muñoz, Rodrigo Montúfar-Chaveznava, Ivette Caldelas. P113 PHOSPHORYLATION-DEPENDENT DEGRADATION OF CRY2 REGULATES CLOCK GENE EXPRESSION AND CIRCADIAN PERIOD Arisa Hirano, Nobuhiro Kurabayashi, Yoshitaka Fukada. P114 DETERMINATION OF INTRON MOVEMENT IN PER GENE Gabina Calderón Rosete, Francisco Martínez Pérez, Juan A. González Barrios, Luis Kameyama, Jorge L. Fuentes Lorenzo, Leonardo Rodríguez Sosa P115 EXPLORATION OF THE HUMAN MOLECULAR CLOCK IN FIELD STUDIES Marta Novakova, Martin Sladek, Alena Sumova. P116 DAILY FLUCTUATIONS IN THE BIOSYNTHESIS OF PHOSPHATIDYLCHOLINE AND ACTIVITY OF ITS KEY ENZYME CTP: PHOSPHOCHOLINE CYTIDYLYLTRANFERASE IN SYNCHRONIZED CULTURES OF FIBROBLASTS Victoria América Acosta Rodríguez, Sebastián Márquez, Mario Eduardo Guido. P117 OPSIN EXPRESSION AND LIGHT RESPONSES IN RGC-5 CELLS Paula Sofía Nieto, Diego Javier Valdez, Victoria América Acosta-Rodríguez, Mario Eduardo Guido. P118 CIRCADIAN REGULATION OF CYTOPLASMIC MRNA-GRANULES Juan Ignacio Lescano, Mario Eduardo Guido, Eduardo Garbarino Pico. P119 JNK PHOSPHORYLATES BMAL1-CLOCK COMPLEX AND CONTROLS OSCILLATION SPEED AND PHOTIC REGULATION OF THE CIRCADIAN CLOCK Yoshitaka Fukada, Hikari Yoshitane, Shin-ya Nishide, Hiroto Nakajima, Daisuke Ono, Hiroshi Kiyota, Kiyomichi Imamura, Naoya Shinozaki, Hirokazu Matsuki, Naoya Wada, Hirofumi Doi, Toshiyuki Hamada, Ken-ichi Honma, Sato Honma. 23 P120 PHOTOTRANSDUCTION IN ZEM-2S EMBRYONIC CELLS OF ZEBRAFISH DANIO RERIO Bruno Ribeiro Ramos, Leonardo Ribeiro Lima, Maria Nathália Magalhães Moraes, Maristela Oliveira Poletini, Ana Maria Lauro Castrucci. P121 EFFECTS OF LIGHT ON PER1 AND PER2 TRANSCRIPTION: MODULATION AND SYNCHRONIZATION IN Xenopus laevis MELANOPHORES Maria Nathália Carvalho Moraes, Bruno Ribeiro Ramos, Maristela Oliveira Poletini, Leonardo Ribeiro Lima, Ana Maria Lauro Castrucci. P122 CRUSTACEAN HYPERGLYCEMIC HORMONE mRNA OSCILATION IN THE CRAYFISH PROCAMBARUS CLARKII EYESTALK Janikua Nelson-Mora, Julio Prieto-Sagredo, María Luisa Fanjul-Moles. P123 GENOMIC DISSECTION OF TASK-RELATED PLASTICITY IN CIRCADIAN RHYTHMS IN HONEY BEES Guy Bloch, Sandra L. Rodríguez-Zas, Bruce R. Southey, Mira Cohen, Gene E. Robinson. P124 MEASURE OF THE mRNA OF RYANODINE 2 RECEPTOR AND GENES PER1 AND PER2 IN UNIQUE CELL OF THE SUPRAQUIASMATIC NUCLEUS AT TWO DIFFERENT HOURS (ZT12 AND ZT23) José Luis Chávez Juárez, Daniel Quinto Muñoz, Raúl Aguilar Roblero. P125 DIFFERENTIAL DEVELOPMENT OF THE DIURNAL CLOCK GENE EXPRESSION IN THE OLFACTORY BULB AND SUPRACHIASMATIC NUCLEUS OF EUROPEAN RABBIT Oscar Hernández Campos, Rodrigo Montúfar Chaveznava, Ivette Caldelas. P126 PARTICIPATION OF INTRACELLULAR CALCIUM-RELEASE CHANNELS AND CALCIUM PUMPS IN THE CIRCADIAN RHYTHMICITY OF THE SUPRACHIASMATIC NUCLEUS Adrian Báez-Ruiz, Raúl Aguilar-Roblero, Gabriella S. Lundkvist, Mauricio Díaz-Muñoz. P127 HISTOCHEMICAL CHARACTERIZATION OF ENDOPLASMIC RETICULUM PROTEINS THAT MOVILIZE INTRACELLULAR CALCIUM IN THE SCN Clara Mercado López, Mauricio Díaz Muñoz. P128 THE EFFECT OF GATING RYANODINE RECEPTORS ON THE INTRACELULAR CALCIUM CONCENTRATION IN SCN NEURONS IN MICE Daniel Quinto-Muñoz, Stephan Michel, Raúl Aguilar-Roblero. P129 MECHANISMS OF RESPIRATORY RHYTHM GENERATION IN VITRO: EFFECT OF INCREASING CA2+ BUFFERING CAPABILITY IN PREBÖTZINGER COMPLEX INSPIRATORY NEURONS Consuelo Morgado-Valle, Jorge Manzo, Luis Isauro García, Luis Beltrán-Parrazal. P130 MODULATION OF APOPTOTIC ACTIVITY IN LIVER CELLS BY THE FOOD ENTRAINABLE OSCILLATOR Christian Molina Aguilar, Olivia Vázquez Martínez and Mauricio Díaz Muñoz. Instituto de Neurobiología, UNAM Campus Juriquilla, Querétaro, México. P131 LOW TEMPERATURE PULSES PRODUCE CIRCADIAN EFFECTS ON THE LOCOMOTOR ACTIVITY RHYTHM OF THE CRAYFISH P. CLARKII. Irving Palma-Anzures, Julio Prieto-Sagredo, Ma. Luisa Fanjul-Moles. 24