الصفحة 3
الصفحة 3
Comprehensive biochemistry for dentistry : Textbook for dental students
Combines fundamental concepts of biochemistry and the dental sciences to provide an authentic, coherent and comprehensive text for dental students. It describes in simple language the intricate pathophysiology of biomolecules in health and in diseases of dental and oral tissues. This book also describes the evolution of biochemistry in a chronological order, provides information about the fundamental chemical structure, classification and biological significance of biomolecules, vitamins and hormones, enriched with flow charts and diagrams for easy understanding and quick reference. It includes chapters on nucleic acids, nutrition and serum enzymes and organ function tests, and offers an innovative approach to familiarize dental students with the biochemical composition of enamel, dentine, cementum and saliva, explaining the biochemical basis of dental caries, periodontal diseases, role of fluorides in caries prophylaxis, fluoride toxicity, and the role of amino acids as anti-hypersensitive agents
Chiral Diazaligands for Asymmetric Synthesis
The use of phosphine derivatives has historically induced the tremendous development of catalysis (both non-asymmetric and asymmetric). Although the chemistry of amines is more documented, the use of nitrogen-containing ligands only appeared recently. Nevertheless, during the last ten years, the results describing chiral diamine preparations and their uses in asymmetric catalysis and synthesis are increasing faster than their phosphorus counterparts. The reader will find in this volume the most recent methods for the synthesis of chiral diamines as well as their applications in asymmetric catalysis of CC bond formation. Particular attention will be given to spartein and derivatives of such diamines. Recently, the particular properties and the chemistry of amines allowed to obtain catalysts easy to separate and recycle and new types of ligands such as diaminocarbenes, ureas and thioureas. Finally, the complexing properties of some diamines allowed the formation of complexes with chirality "at the metal " which is of major theoretical interest and presents numerous potential applications.
Chemokines and Viral Infection
This edition of Current Topics in Microbiology and Immunology examines the role of chemokines and chemokine receptors in host defense and disease development following viral infection. Chemokines represent a family of over 40 small proteins that, for the most part, are secreted into the environment and function by binding to G protein-coupled receptors (GPCRs) that are expressed on numerous different cell types. When initially identified close to 30 years ago, these molecules were associated with various human inflammatory diseases and it was recognized that expression may be integral in leukocyte recruitment to inflamed tissue. There are now four sub-families of chemokines identified based on defined structural criteria relating to the positional location of conserved cysteine residues within the amino-terminus of the protein. Chemokines are now recognized as important in numerous biological processes ranging from maintaining the organizational integrity of secondary lymphoid tissue to participating in various aspects of both innate and adaptive immune responses following microbial infection. With this in mind, this book highlights the functional roles of chemokines and their receptors in participating in various aspects of the immune response against well-known viral pathogens.
Chemistry and Safety of Acrylamide in Food
Specifically covered are the following aspects: exposure from the environment and the diet; biomarkers of exposure; risk assessment; epidemiology; mechanism of formation in food; biological alkylation of amino acids, peptides, proteins, and DNA by acrylamide and its epoxide metabolite glycidamide; neurotoxicity, reproductive toxicity, and carcinogenicity; protection against adverse effects; and possible approaches to reducing levels in food. Cross-fertilization of ideas among several disciplines in which an interest in acrylamide has developed, including food science, pharmacology, toxicology, and medicine, will provide a better understanding of the chemistry and biology of acrylamide in food, and can lead to the development of food processes to decrease the acrylamide content of the diet.
Cell Surface Receptors : A Short Course on Theory and Methods
Cell Surface Receptors: A Short Course on Theory and Methods, 3rd Edition, links theoretical insights into drug-receptor interactions described in mathematical models with the experimental strategies to characterize the biological receptor of interest.
Catalytic role of amino acids in organic reactions
Asymmetric organometallic and organocatalytic processes have attracted great interest. Asymmetric synthesis using both natural and unnatural amino acids has been tremendously important from synthetic as well as industrial viewpoints, and numerous new methodologies have been developed in the last decades. Herein we provide an overview of old and very recent (since 1900 till now) advances and applications in the area of heterogeneous catalysis, homogeneous catalysis, electrocatalysis, photocatalysis, organocatalysis, thermal catalysis using amino acids [proline, glycine, alanine, valine, serine, threonine, cysteine, methionine, asparagine, glutamine, lysine, arginine, histidine, aspartate, glutamate, phenylalanine, and tryptophan], (supported or unsupported), an amino acid containing materials or amino acids derivatives as an essential component of catalysts, this book highlights the most important and recent developments to immobilize or support amino acids on various support materials. This book is suitable as supplementary reading for courses targeting the design, synthesis, and application of chiral catalysts, asymmetric catalysis, and sustainable production.
Biomacromolecules : Carbohydrates, lipids, proteins and nucleic acids
The first chapter looks at the structural formulas and cyclic forms of monosaccharides, as well as their synthesis and breakdown. Cyclization, enolization, isomerization, tautomerization, mutarotation, and epimerization are all briefly described. Examples of disaccharides and polysaccharides are also presented. The second chapter covers triglycerides, steroids, vitamins, and their constituents. The third chapter examines the primary structure of proteins, including amino acid properties, peptide bond formation, and peptide synthesis. It also addresses secondary, tertiary, and quaternary structures. The book concludes with a chapter on nucleic acids, which covers the chemistry of nucleosides and oligonucleotides as well as topics such as genetic code, DNA secret code, Polymerase Chain Reaction and DNA fingerprinting.
Bioinformatics of genome regulation and structure II
The conference was organized by the Laboratory of Theoretical Genetics, Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia. The material covers the most recent topics in bioinformatics, including (i) regulatory genomic sequences: databases, knowledge bases, computer analysis, modeling, and recognition; (ii) large-scale genome analysis and functional annotation; (iii) gene structure detection and prediction; (iv) comparative and evolutionary genomics; (v) computer analysis of genome polymorphism and evolution; computer analysis and modeling of transcription, splicing, and translation; structural computational biology: structure- function organization of genomic DNA, RNA, and proteins; (vi) gene networks, signal transduction pathways, and genetically controlled metabolic pathways: databases, knowledge bases, computer analysis, and modeling; principles of organization, operation, and evolution; (vii) data warehousing, knowledge discovery and data mining; and (viii) analysis of basic patterns of genome operation, organization, and evolution.
Biochemistry
Biochemistry and the organization of cells -- Water : the solvent for biochemical reactions -- Amino acids and peptides -- The three-dimensional structure of proteins -- Protein purification and characterization techniques -- The behavior of proteins : enzymes -- The behavior of proteins : enzymes, mechanisms, and control -- Lipids and proteins are associated in biological membranes -- Nucleic acids : how structure conveys information -- Biosynthesis of nucleic acids : replication -- Transcription of the genetic code : the biosynthesis of RNA -- Protein synthesis : translation of the genetic message -- Nucleic acid biotechnology techniques -- Viruses, cancer, and immunology -- The importance of energy changes and electron transfer in metabolism -- Carbohydrates -- Glycolysis
Bee products : Chemical and biological properties
Presents an updated discussion on the chemical composition and biological properties of the main bee products, which until now have been presented separately in different editions This book scoops out studies about bee products most used in marketing and in traditional medicine such as honey, royal jelly, propolis, bee pollen and bee venom Discusses chemical composition and biological function of the different bee products on topics such as nutrition, aging and age-related diseases, cancer, neurodegenerative diseases and pathogen infections Bee products are rich in several essential nutrients and non essential nutrients, as sugars, minerals, proteins, free amino acids, vitamins, enzymes and polyphenols, that seem to be closely related to their biological functions. The effects of these products in nutrition, aging and age-related diseases, cancer, neurodegenerative diseases and pathogen infections are discussed.
Antioxidants effects in health : The bright and the dark side ; 1st ed.
Examines the role that antioxidants play in a variety of health and disease situations. The book discusses antioxidants’ historical evolution, their oxidative stress, and contains a detailed approach of 1) endogenous antioxidants, including endogenous sources, mechanisms of action, beneficial and detrimental effects on health, in vitro evidence, animal studies and clinical studies; 2) synthetic antioxidants, including sources, chemistry, bioavailability, legal status, mechanisms of action, beneficial and detrimental effects on health, in vitro evidence, animal studies and clinical studies; and 3) natural antioxidants, including sources, chemistry, bioavailability, mechanisms of action, possible prooxidant activity; beneficial and detrimental effects on health, in vitro evidence, animal studies and clinical studies. Throughout the boo, the relationship of antioxidants with different beneficial and detrimental effects are examined, and the current controversies and future perspectives are addressed and explored. Antioxidants Effects in Health: The Bright and the Dark Side evaluates the current scientific evidence on antioxidant topics, focusing on endogenous antioxidants, naturally occurring antioxidants and synthetic antioxidants. It will be a helpful resource for pharmaceutical scientists, health professionals, those studying natural chemistry, phytochemistry, pharmacognosy, natural product synthesis, and experts in formulation of herbal and natural pharmaceuticals.
Animal cell technology meets genomics ; Proceedings of the 18th ESACT Meeting. Granada, Spain, May 11-14, 2003
Reflects the spirit and scientific excellence of the 18th ESACT meeting in different chapters. This book presents, in form of short papers, a high number of the contributions to the meeting, and has been prepared with the aim to provide a relevant reference of the research efforts in Animal Cell Technology
Amino acids and the asymmetry of life : Caught in the act of formation
This book describes how the basic building blocks of life, the amino acids, formed. After a comprehensible introduction into stereochemistry, the author addresses the inherent property of amino acids in living organisms, namely the preference for left-handedness. What was the cause for violation of parity of amino acids in the emergence of life on Earth? All the fascinating models proposed by physicists, chemists and biologist are vividly presented including the scientific conflicts.
Amino acid biosynthesis : Pathways, regulation and metabolic engineering
Amino Acids Biosynthesis presents the current knowledge of fundamental as well as applied microbiology of amino acids. Topics discussed are the amino acid biosynthetic pathways, their genetic and biochemical regulation, transport of amino acids and genomics of producing microorganisms. The characterization of the control mechanisms of amino acid biosynthesis has revealed insights into principles of genetic and biochemical regulation, such as transcriptional regulators and a new class of regulatory elements, the riboswitch. The volume further deals with the metabolic engineering of microorganisms for the biotechnological production of amino acids for use as pharmaceuticals and, particularly, as food and feed additives.
Advances in Microbiology, Infectious Diseases and Public Health ; Vol.15
Focuses on current progress in the broad field of medical microbiology, and covers both basic and applied topics related to the study of microbes, their interactions with human and animals, and emerging issues relevant for public health. Original research and review articles present and discuss multidisciplinary findings and developments on various aspects of microbiology, infectious diseases, and their diagnosis, treatment and prevention.
Acceleration and Improvement of Protein Identification by Mass Spectrometry
This book is presenting a review of basic proteomic techniques. The second part of the book is related to the novel high throughput protein identification technique called the 'molecular scanner'
