Biological Aspects Of Circadian Rhythms
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Biological Aspects Of Circadian Rhythms
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Author : J. Mills
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Biological Aspects Of Circadian Rhythms written by J. Mills and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
A "biological clock" has now been inferred in so many and such diverse organisms and tissues that even a summary of the more interesting and important observations would be a tedious and encyclopaedic compila tion, whose bibliography would assume a daunting size. It would also be obsolescent on the day of publication. The new titles appearing in the monthly lists are scattered through many journals, but a new journal devoted exclusively to rhythm research published its first issue in May, 1970-the Journal of Interdisciplinary Cycle Research-and another, Chronobiology, appears in 1973. In this volume several authors have been asked to review separate aspects within their own fields of study, in the hope that thereby the reader might gain an idea of the many directions of active progress and be better placed to interrelate them than would be possible after a more exhaustive study of a limited part of the field. The outcome is a series of essays in which each contributor has exercised his individuality in ideas, style and presentation, and, at some points, in vocabulary, although the glossary includes a number of terms which have been fairly generally used.
Biological Aspects Of Circadian Rhythms
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Author : J. Mills
language : en
Publisher:
Release Date : 1973-11-01
Biological Aspects Of Circadian Rhythms written by J. Mills and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973-11-01 with categories.
The Biological Clock
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Author : Frank A. Brown
language : en
Publisher: Academic Press
Release Date : 2014-06-28
The Biological Clock written by Frank A. Brown and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-06-28 with Science categories.
The Biological Clock describes the rhythmic processes in a great variety of plants and animals. This book is an outgrowth of the 1969 James Arthur Lecture Series on "Time and its Mysteries" held at New York University. This three-chapter work begins with the basic principles of biological rhythms and clocks, along with various diagrams to illustrate some aspects of circadian rhythms in animals. The second chapter discusses the hypothesis of environmental timing of the clock. This chapter explores numerous research studies on phenomenon of biological rhythms, the nature of the rhythmic mechanism, and hormonal regulation. The third chapter examines the cellular-biochemical clock hypothesis and its contribution in the progress of understanding the complexity of biological rhythm. This book is intended primarily for biologists, behaviorists, and researchers.
Comparative Aspects Of Circadian Rhythms
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Author : Maria Luisa Fanjul-Moles
language : en
Publisher:
Release Date : 2008-01-01
Comparative Aspects Of Circadian Rhythms written by Maria Luisa Fanjul-Moles and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-01-01 with categories.
Chronobiology is the study of adaptations evolved at all levels of organization by living organisms to cope with regular geophysical cycles in the environment. The Earth s rotation originates alternation of light and darkness with a 24-h period; this signal allowed primordial organisms to keep track of time, adjust their internal temporal order, and anticipate external time. This capability fostered the development in living matter of endogenous temporal organization of cellular process over an approximately 24-h period. The cellular machinery that generates this ability is known as the biological clock, and its outputs as circadian rhythms. Such clocks can be found in nearly all organisms, from simple bacteria to insects, mammals, and of course, humans. The selective advantage conferred to all organisms by the biological clock comprises coordination of molecular, physiological, and behavioral processes, so as to ensure its occurrence during the daily cycle s optimal time. When organisms are maintained in an environment with strong time signals (zeitgebers) such as the light-dark cycle, each of their circadian rhythms establishes a stable relationship with each other and with the external cycle, and becomes an entrained system. Different species and different individuals within each species are coupled with their own typical phases to the natural 24-h cycle. Thus, time is embedded in our genes, and circadian clocks have emerged several times during evolution as a result of convergence to meet a common need. And although key proteins are not conserved, all clocks known to date in eukaryotes involve transcriptional-translational feedback loops. Over the last decades, chronobiology has expanded enormously, is emerging independently in many fields, and it is one of the most interdisciplinary fields in biology. While it has not been easy to understand how a biological clock works in an organism, research with different models from single-cell organisms to complex multicellular plants and animals have provided us insight concerning the ticking of the clock. Identification of circadian rhythms in biochemical and behavioral parameters in different unicellular organisms, localization of different oscillators in combination with behavioral outputs markers by neurobiological techniques in insects and mammals, as well as molecular genetics that has led to identification and cloning of clock genes in several species including humans have rendered chronobiology a diverse and dynamic discipline, with not only biological relevance but also important social and medical implications. Our goal in editing this book was to provide a comparative view of our current knowledge regarding circadian rhythms and clocks at different phylogenetic levels. The authors contributing to this volume review both circadian molecules and mechanisms in representative groups ranging from simple organisms as unicells to complex ones such as invertebrates and non-mammal and mammal vertebrates. The book reflects and is a token of different approaches to the field, such as regulation molecules and their biochemical pathways involved in either circadian or exogenous aspects of the rhythmic process and its regulation in photoautotrophic unicells and the neurobiological and molecular bases of circadian oscillators in some invertebrates and vertebrates. A number of works are focused in the importance of environmental, social, and nutrient temporal signals as synchronizing agents in insects and in different vertebrate models. These reviews are not only centered on the adult organism at the integrative level, but also provide an ontogenetic view at behavioral, physiological, and molecular levels. Furthermore, they supply evidence on several organs as potential sources of circadian signaling for different vertebrate groups, which indicates multioscillatory circadian systems similar to those proposed for some invertebrates. In Chapter 1, Rüdiger Hardeland revises the importance of tryptophan metabolic pathways in two unicells, Euglena gracilis, and the dinoflagellate, Lingulodinium polyedrum. Barbara-Ann Battelle, in Chapter 2, reviews and describes current knowledge of the circadian system of a Chelicerata, Limulus polyphemus, visual inputs into the central clock, and efferent pathways of the clock to the eyes, in addition to the molecular mechanisms underlying these processes. In Chapter 3, María Elena Durán-Lizárraga et al. review the role of different crustacean neuropeptides in the regulation of several physiological processes, such as those proposed as controlled by the circadian system of decapoda, particularly in crayfish. Claudio R. Lazzari and Teresita C. Insausti examine, in Chapter 4, the importance of circadian rhythms from insect s populations, closely associated with the history of chronobiology and the Pittendrigh pioneering work. Continuing on insects, the concept of the superorganism and the interaction of rhythms at different frequencies in different cohorts of individuals forming a colony is presented in Chapter 5 by Mirian David-Marques and Cintia Etsuko-Yamashita. In dealing with vertebrates, Raquel Carvalho and Luiz Menna-Barreto in Chapter 6 address fish from the phenomenology of circadian rhythms to the description of the underlying multioscillatory system, finally reviewing its ecological and evolutionary relevance of these species as a model. The following chapter (7) by Carolina Escobar et al. offers an integrative view of the so-called food-entrained oscillator in rodents. Then, in Chapter 8 Ivette Caldelas and colleagues provide us with an ontogenetic approach to non-visual entrainment of the circadian system, an alternative view of the food-entrained oscillator, using as a natural model the newborn rabbit. Still in the area of restricted food availability as an entraining signal, in Chapter 9 Adrián Báez-Ruíz et al. provide yet another perspective of this phenomenon, which stresses the role of liver physiology and biochemistry in the regulation of food ingestion and hepatic circadian rhythmicity. Finally, in Chapter 10 Raúl Aguilar-Roblero and colleagues review the role of the rodent suprachiasmatic nuclei as a biological clock for the mammalian circadian system, with emphasis on molecular and cellular aspects involved in the first steps of coding biological time into a signal readable by its neuronal targets. We have attempted to provide a panoramic perspective of the multiple approaches for addressing the study of the circadian system in different organisms. Selection of contributions included certain aspects of circadian rhythms not easily found in other reviews. We are indebted to the enthusiastic response of the entire group of contributors, all distinguished professors from universities from different countries, in achieving publication of this volume. We hope readers will find the text useful and that it will perhaps further promote their interest in this area of biology.
Circadian Rhythms
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Author : Michael Young
language : en
Publisher: Elsevier
Release Date : 2005-04-04
Circadian Rhythms written by Michael Young and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-04-04 with Science categories.
The critically acclaimed laboratory standard, Methods in Enzymology, is one of the most highly respected publications in the field of biochemistry. Since 1955, each volume has been eagerly awaited, frequently consulted, and praised by researchers and reviewers alike. The series contains much material still relevant today - truly an essential publication for researchers in all fields of life sciences. Circadian Rhythms contains an extensive discussion of genetic and biochemical aspects of circadian rhythms. In this volume organisms such as neurospora, bacteria, drosophila, arabidopsis and mammals are covered. Included are methods in genetics, transcriptional and post-transcriptional regulation, tissue culture, and populations are discussed in detail. * One of the most highly respected publications in the field of biochemistry since 1955 * Frequently consulted, and praised by researchers and reviewers alike * Truly an essential publication for anyone in any field of the life sciences
Introducing Biological Rhythms
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Author : Willard L. Koukkari
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-07-29
Introducing Biological Rhythms written by Willard L. Koukkari and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-07-29 with Science categories.
Introducing Biological Rhythms is a primer that serves to introduce individuals to the area of biological rhythms. It describes the major characteristics and discusses the implications and applications of these rhythms, while citing scientific results and references. Also, the primer includes essays that provide in-depth historic and other background information for those interested in more specific topics or concepts. It covers a basic cross-section of the field of chronobiology clearly enough so that it can be understood by a novice, or an undergraduate student, but that it would also be sufficiently technical and detailed for the scientist.
Biological Rhythms
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Author : Vinod Kumar
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-17
Biological Rhythms written by Vinod Kumar and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-17 with Science categories.
(Chapters 11 to 14) summarise important features of the biological clock at the level of whole animal covering all vertebrate classes (fish to mammal). Chapters 15 and 16 are on long term (seasonal) rhythms in plants and higher vertebrates. Short term rhythms (ultradian rhythms), the significance of having a clock system in animals living in extreme (arctic) environments, and the diversity of circadian responses to melatonin, the key endocrine element involved in regulation of biological rhythms, have been discussed in Chapters 17 to 19. Finally, a chapter on sensitivity to light of the photoperiodic clock is added which, using vertebrate examples, illustrates the importance of wavelength and intensity of light on circadian and non-circadian functions. A well-known expert writes each chapter. When presenting information, the text provides consistent thematic coverage and feeling for the methods of investigation. Reference citation within the body of the text adequately reflects the literature as subject is developed. A chapter begins with an abstract that enables a reader to know at the first glance the important points covered in that chapter. The chapter concludes with a full citation of references included in the text, which could be useful for further reading. The book ends with a comprehensive subject index that may be useful for quick searches.
The Timing Of Biological Clocks
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Author : Arthur T. Winfree
language : en
Publisher: Macmillan
Release Date : 1987
The Timing Of Biological Clocks written by Arthur T. Winfree and has been published by Macmillan this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Biological rhythms. categories.
Examines circadian rhythms, tells how biological clocks are reset, and discusses time zones, consciousness, and clocks
The Circadian Clock
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Author : Urs Albrecht
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-01-23
The Circadian Clock written by Urs Albrecht and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-01-23 with Science categories.
With the invitation to edit this volume, I wanted to take the opportunity to assemble reviews on different aspects of circadian clocks and rhythms. Although most c- tributions in this volume focus on mammalian circadian clocks, the historical int- duction and comparative clocks section illustrate the importance of various other organisms in deciphering the mechanisms and principles of circadian biology. Circadian rhythms have been studied for centuries, but only recently, a mole- lar understanding of this process has emerged. This has taken research on circadian clocks from mystic phenomenology to a mechanistic level; chains of molecular events can describe phenomena with remarkable accuracy. Nevertheless, current models of the functioning of circadian clocks are still rudimentary. This is not due to the faultiness of discovered mechanisms, but due to the lack of undiscovered processes involved in contributing to circadian rhythmicity. We know for example, that the general circadian mechanism is not regulated equally in all tissues of m- mals. Hence, a lot still needs to be discovered to get a full understanding of cir- dian rhythms at the systems level. In this respect, technology has advanced at high speed in the last years and provided us with data illustrating the sheer complexity of regulation of physiological processes in organisms. To handle this information, computer aided integration of the results is of utmost importance in order to d- cover novel concepts that ultimately need to be tested experimentally.
Chronobiology
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Author : Pavol Svorc
language : en
Publisher: BoD – Books on Demand
Release Date : 2019-12-18
Chronobiology written by Pavol Svorc and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-12-18 with Medical categories.
The regular alternation of light and dark affects not only human biological systems, but also the social organization of behavior. The effect of such light modes is manifested in periodic changes in physiological functions and biological rhythms exhibited at every level of life. The book discusses some of the specificities of the circadian rhythms in living organisms and mentions aspects of the control of circadian rhythms as well as experimental and clinical cases that are closely related to circadian disruption. This book can evoke interest in many researchers who want to use this information for the advancement of their research towards a better understanding of the biological time structure.