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Author: Rigers Bakiu Publisher: GRIN Verlag ISBN: 366836155X Category : Science Languages : en Pages : 108
Book Description
Document from the year 2016 in the subject Biology - Evolution, grade: -, Agricultural University of Tirana, language: English, abstract: G protein-coupled receptors (GPCRs) are members of a large protein family that share common structural motifs, including seven transmembrane helices, and play pivotal roles in cell-to-cell communications and in the regulation of cell functions. GPR103 is an orphan GPCR that shows similarities with orexin, neuropeptide FF, and cholecystokinin receptors. In humans, 26RFa/QRFP has been found to be an endogenous ligand for the orphan receptor, GPR103 and it is one of the RFamide peptides, which have been shown to exert important neuroendocrine, behavioural, sensory and autonomic functions. All the information we have till know couldn’ be available if we didn’t know the evolution of this important proteins and the relative interactions, which were discovered recently to be important for the regulation of locomotor activity, sleep and these neuropeptides and receptors exert neuroprotective effect in Alzheimer’s Disease. Anyway, there is a long way to be walked on, because there is a need of additional information, while studing the molecular evolution of these proteins and peptides. What is the Molecular Evolution? In the First chapter the readers can find all about this branch of science and the problems this branch had overcomed in order to bring to the scientific community the molecularisation of the evolution concepts. In the following chapter to the readers is presented a descriptive overview of G-proteins and G-protein coupled receptor. In the other chapters it is also presented 26RFA/QRFP and pyroglutamylated RFamide peptide receptor (QRFPR) molecular evolution, where it is described the molecular phylogeny and the functional implication. It is even shown the unique study regarding the presence on natural selection (positive or negative selection) during the evolution of QRFPRs in mammals and fish species. In the end of the book are shown the recent important finding regarding the function and the role of QRFP and its receptor, together with the experimental approach applied to zebrafish and rodents. Anyway, it is imperative to mention that all the available knowledge from experiments to these animals can be useful for the curation of disorders and other deseases like Alzheimer’s Disease, only if we could understand well their molecular evolution.
Author: Rigers Bakiu Publisher: GRIN Verlag ISBN: 366836155X Category : Science Languages : en Pages : 108
Book Description
Document from the year 2016 in the subject Biology - Evolution, grade: -, Agricultural University of Tirana, language: English, abstract: G protein-coupled receptors (GPCRs) are members of a large protein family that share common structural motifs, including seven transmembrane helices, and play pivotal roles in cell-to-cell communications and in the regulation of cell functions. GPR103 is an orphan GPCR that shows similarities with orexin, neuropeptide FF, and cholecystokinin receptors. In humans, 26RFa/QRFP has been found to be an endogenous ligand for the orphan receptor, GPR103 and it is one of the RFamide peptides, which have been shown to exert important neuroendocrine, behavioural, sensory and autonomic functions. All the information we have till know couldn’ be available if we didn’t know the evolution of this important proteins and the relative interactions, which were discovered recently to be important for the regulation of locomotor activity, sleep and these neuropeptides and receptors exert neuroprotective effect in Alzheimer’s Disease. Anyway, there is a long way to be walked on, because there is a need of additional information, while studing the molecular evolution of these proteins and peptides. What is the Molecular Evolution? In the First chapter the readers can find all about this branch of science and the problems this branch had overcomed in order to bring to the scientific community the molecularisation of the evolution concepts. In the following chapter to the readers is presented a descriptive overview of G-proteins and G-protein coupled receptor. In the other chapters it is also presented 26RFA/QRFP and pyroglutamylated RFamide peptide receptor (QRFPR) molecular evolution, where it is described the molecular phylogeny and the functional implication. It is even shown the unique study regarding the presence on natural selection (positive or negative selection) during the evolution of QRFPRs in mammals and fish species. In the end of the book are shown the recent important finding regarding the function and the role of QRFP and its receptor, together with the experimental approach applied to zebrafish and rodents. Anyway, it is imperative to mention that all the available knowledge from experiments to these animals can be useful for the curation of disorders and other deseases like Alzheimer’s Disease, only if we could understand well their molecular evolution.
Author: Abba Kastin Publisher: Academic Press ISBN: 0123850967 Category : Science Languages : en Pages : 2032
Book Description
Handbook of Biologically Active Peptides, Second Edition, is the definitive, indispensable reference for peptide researchers, biochemists, cell and molecular biologists, neuroscientists, pharmacologists, and endocrinologists. Its chapters are designed to be a source for workers in the field and enable researchers working in a specific area to examine related areas outside their expertise. Peptides play a crucial role in many physiological processes, including actions as neurotransmitters, hormones, and antibiotics. Research has shown their importance in such fields as neuroscience, immunology, pharmacology, and cell biology. The second edition of Handbook of Biologically Active Peptides presents this tremendous body of knowledge in the field of biologically active peptides in one single reference. The section editors and contributors represent some of the most sophisticated and distinguished scientists working in basic sciences and clinical medicine. Presents all aspects of biologically active peptides in one resource Features more than 20 sections spanning plant, bacterial, fungal, venom, and invertebrate peptides to general peptides Includes immunological, inflammatory, cancer, vaccine, and neurotrophic peptides Discusses peptide precursors, mRNA distribution, processing, and receptors, not just pathophysiological implications
Author: Yoshio Takei Publisher: Academic Press ISBN: 0128010673 Category : Science Languages : en Pages : 1156
Book Description
Handbook of Hormones: Comparative Endocrinology for Basic and Clinical Research collates fundamental information about the structure and function of hormones from basic biology to clinical use. The handbook offers a rapid way to obtain specific facts about the chemical and molecular characteristics of hormones, their receptors and signalling pathways, and the biological activities they regulate. The evolution of hormones and gene families is also covered both in the text and in online ancillaries. Users will find simple and visual ways to learn key molecular information. Chapters and online ancillary resources integrate additional sections, providing a comparative molecular, functional, and evolutionary consideration. Provides the only single resource available with concise, yet informative descriptions of hormones in vertebrates, invertebrates, and plants Presents hormones in groups according to their origin, so that readers can easily understand their inter-relation Includes comparative information on the structures and functions of hormones enabling readers to understand both general and specific actions in and across species Ancillary website hosts additional information, including sequence data, comparative data, figures, and tables
Author: Chandraleka Saravanan Publisher: BoD – Books on Demand ISBN: 1789231825 Category : Science Languages : en Pages : 122
Book Description
The book Ligand describes the diversity and versatility of ligands, covering structural features, donor-acceptor properties and secondary functions like molecular recognition. Moreover, this book also provides a comprehensive account on the applicability like catalysis, sensors, supramolecular assembly, photochemical property, bioinorganic chemistry, and so on. The advancement of fundamentals in ligand design and the control of physicochemical properties of coordination compounds has largely increased emphasis on understanding the structural and electronic features toward different perspectives in materials science. In this regard, this book has a special appeal to chemists, biologists and others. This book will be beneficial for the graduate students, teachers, researchers and other professionals who are interested to fortify and expand their knowledge in chemistry, biology, microbiology, biotechnology, materials science, environmental science and so on.
Author: Fidel Toldra Publisher: Academic Press ISBN: 0128214384 Category : Science Languages : en Pages : 819
Book Description
Biologically Active Peptides: From Basic Science to Applications for Human Health stands as a comprehensive resource on bioactive peptide science and applications. With contributions from more than thirty global experts, topics discussed include bioactive peptide science, structure-activity relationships, best practices for their study and production, and their applications. In the interdisciplinary field of bioactive peptides, this book bridges the gap between basic peptide chemistry and human physiology, while reviewing recent advances in peptide analysis and characterization. Methods and technology-driven chapters offer step-by-step guidance in peptide preparation from different source materials, bioactivity assays, analysis and identification of bioactive peptides, encoding bioactive peptides. Later, applications across disease areas and medical specialties are examined in-depth, including the use of bioactive peptides in treating obesity, diabetes, osteoporosis, mental health disorders, food allergies, and joint health, among other disorders, as well as bioactive peptides for sensory enhancement, sports and clinical nutrition, lowering cholesterol, improving cardiovascular health, and driving advances in biotechnology. Discusses the latest advances in bioactive peptide chemistry, functionality and analysis Offers step-by-step instruction in applying new technologies for peptide extraction, protection, production and encoding, as well as employing bioactive peptide sequencing and bioactivity assays in new research Effectively links basic peptide chemistry, human biology and disease Features chapter contributions from international experts across disciplines and applications
Author: Margaret F. Docker Publisher: Springer ISBN: 9401793069 Category : Science Languages : en Pages : 438
Book Description
The book provides the most comprehensive review of lamprey biology since Hardisty and Potter’s five-volume “The Biology of Lampreys” published more than 30 years ago. Published in two volumes, it includes contributions from international lamprey experts, reviewing and providing new insights into the evolution, general biology, and management of lampreys worldwide. This first volume offers up-to-date chapters on the systematics, general biology, conservation status, and conservation needs of lampreys. It will serve as an important reference for researchers working on any aspect of lamprey biology and fishery managers whose mandate is to control or conserve lamprey populations.
Author: Karine Rousseau Publisher: Frontiers Media SA ISBN: 2889197301 Category : Diseases of the endocrine glands. Clinical endocrinology Languages : en Pages : 162
Book Description
The discovery, twelve years ago, that the RF-amide peptide kisspeptin, acting via GPR54, is essential for the onset of puberty and reproduction, has been a major breakthrough in reproductive physiology. It has also put in front of the spotlights RF-amide peptides and allowed to revive research on this superfamily. The first member of this family to be characterized, in 1977, was the cardioexcitatory peptide, FMRFamide, isolated from the ganglia of the clam Macrocallista nimbosa. Since then, a large number of these peptides, designated after their C-terminal arginine (R) and amidated phenylalaline (F) residues, have been identified in representative species of all major phyla. By means of phylogenetic analyses, the superfamily of RFamide peptides has been divided into five families in vertebrates: kisspeptin, QFRP (including 26RFa), LPXRFa (including GnIH and RFRP), PQRFa (including NPFF) and PrRP. Recent data reveal that SIFamide-type neuropeptides in protostomian invertebrates and SALMFamide-type neuropeptides in deuterostomian invertebrates share a common evolutionary origin with vertebrate LPXRFa and PQRFa. Interestingly, in invertebrates as in vertebrates, multiple genes, as well as multiple mature peptides, are often present in a single species, questioning the need for such diversity in term of function. Comparative studies on non-mammalian vertebrates and invertebrates allow major advances in the knowledge of the evolutionary history of the RF-amide peptide superfamily. Such phylogenetical studies also contribute to improve classification and nomenclature of both peptides and receptors. RF-amide peptides from different families have major evolutionary conserved roles in the control of reproduction, but also of food intake, metabolism, energy expenditure, cardiovascular function, nociception and stress. They are also involved in the integration of environmental signals, notably the photoperiod, to regulate reproduction. For instance, in most vertebrate species and especially in seasonal mammals, kisspeptin and GnIH/RFRP have complementary but opposite effects in the control of reproductive function. In addition, recent data show cross-activities between the members of the RF-amide peptide superfamily and their receptors. For example, PrRP, kisspeptin and 26RFa are able to modulate nociception via NPFF receptors. Comparative studies have the potential to reveal novel regulatory mechanisms that could give a better comprehension of physiological functions and lead to new therapeutic treatments for related human pathologies. Thus, kisspeptin antagonists have been developed as novel tools for treatment of hormone-dependent disorders of reproduction such as precocious puberty and endometriosis or kisspeptin agonists for treatment of infertility, in humans. Studies on lower vertebrate models can also contribute to the discovery of new roles of these peptides, as seen recently with kisspeptin being involved in the early development of the medaka. This research topic will aim at gathering major advances achieved through comparative studies in (mammalian and non-mammalian) vertebrates and invertebrates, in the knowledge of RF-amide peptides in term of evolutionary history and physiological roles.
Author: Hongsheng Yang Publisher: Academic Press ISBN: 0128004673 Category : Technology & Engineering Languages : en Pages : 478
Book Description
While sea cucumber is one of China's and Asia’s most prized seafoods, and aquaculture programs are being developed on a huge commercial scale, Chinese expertise and knowledge in this area has not been well disseminated worldwide. The Sea Cucumber Apostichopus japonicus is the first book to bridge this gap by compiling key information related to hatchery and aquaculture techniques, nutritional and medical values, markets, and trade flow of the number one sea cucumber species. It summarizes the historical and most recent developments in the trade and aquaculture of Apostichopus japonicus, as well as important aspects of its anatomy, population dynamics, reproduction, development, physiology, and biochemistry. With sea cucumber harvest and aquaculture booming worldwide, comprehensive knowledge of China’s technological breakthroughs in this rapidly expanding field is key. The Sea Cucumber Apostichopus japonicus is essential to understanding the cultural underpinnings of the insatiable market demands for sea cucumber and what drives sea cucumber trade. It also provides biological information and aquaculture techniques that can be adapted to other species, making it a valuable resource for researchers and practitioners involved in sea cucumber harvesting, aquaculture, and conservation. Explores the historical and current importance of Apostichopus japonicus in China, Japan, and the two Koreas Presents innovative production technologies in sea cucumber aquaculture Provides the latest scientific methods to maximize efficiency and production Includes important information on the design and operation of farms Discusses hot topics, current challenges, and future opportunities in aquaculture Highlights important advances in the study of sea cucumbers at the behavioral, cellular, and molecular levels
Author: Rigers Bakiu
Author: Rigers Bakiu
Author: Abba Kastin
Author: Yoshio Takei
Author: A. J. Thody
Author: Chandraleka Saravanan
Author: Fidel Toldra
Author: Margaret F. Docker
Author: Karine Rousseau
Author: Hongsheng Yang
Author: Marco Salemi