A collection of papers that comprehensively describe the major areas of research on lipid metabolism of plants. State-of-the-art knowledge about research on fatty acid and glycerolipid biosynthesis, isoprenoid metabolism, membrane structure and organization, lipid oxidation and degradation, lipids as intracellular and extracellular messengers, lipids and environment, oil seeds and gene technology is reviewed. The different topics covered show that modern tools of plant cellular and molecular biology, as well as molecular genetics, have been recently used to characterize several key enzymes of plant lipid metabolism (in particular, desaturases, thioesterases, fatty acid synthetase) and to isolate corresponding cDNAs and genomic clones, allowing the use of genetic engineering methods to modify the composition of membranes or storage lipids. These findings open fascinating perspectives, both for establishing the roles of lipids in membrane function and intracellular signalling and for adapting the composition of seed oil to the industrial needs. This book will be a good reference source for research scientists, advanced students and industrialists wishing to follow the considerable progress made in recent years on plant lipid metabolism and to envision the new opportunities offered by genetic engineering for the development of novel oil seeds.

An intimate relation between hormones and lipoprotein metabolism has been known for a long time especially from hormone-deficiency or -overproduction syndromes. The mechanisms through which hormones influence lipid metabolism have become a field of major interest in sci ence. The more we learn about cellular hormonal actions the better we understand regulatory processes and phenomena occuring in patients. The present book summarizes data discussed at an International Meet ing at Marburg, Germany, on "Hormones in Lipoprotein Metabolism." It was an attempt to pull together knowledge in basic science from the mode of action of hormones all the way to clinical appearance of hor monal disorders involving lipoprotein metabolism. Thus data on molec ular biology, on hormonal regulation of apolipoprotein synthesis, on lipoprotein receptors and enzyme induction are discussed together with the large field of oral contraceptive use, postmenopausal estrogen sub stitution, lipid disorders in diabetes mellitus, in thyroid dysfunction, in adrenal insufficiency and in glucocorticoid application. We are aware of the fact that such an overview cannot be complete but should serve as a collection of data and ideas for those interested in hormonal regulation of lipid metabolism. We thank all authors for taking an extra effort in writing up their presentations and thus making this edition possible. We also thank Bristol-Myers-Squibb for generous support of the meeting and of the final publication. Marburg, Germany ARMIN STEINMETZ JURGEN SCHNEIDER HANS KAFFARNIK Contents Molecular Biology Chairmen: D. J. Rader, A."

This book provides coverage of all aspects of lipid biochemistry and is intended for undergraduates, although it will also be useful for postgraduates and research workers as a first reference. This fourth edition has been rewritten and restructured to incorporate recent advances and to present a broader range of material. The organization of the content is based on an approach which classifies lipids primarily in terms of their functions in living organisms, rather than according to chemical structure. The first chapters deals with definitions, terminology and chemical classifications, and the second with isolation, separation and detection of lipids. Subsequent chapters, each of which incorporates a brief outline of the lipids, then discuss their biochemistry and functions. A feature of this edition is a more detailed treatment of the nutritional and chemical aspects of lipids. The book takes examples from a wide range of living organisms, including microorganisms and higher plants, as well as animals. The book is illustrated and cross-referenced for the convenience of the reader.

There is increasing evidence for the clinicial value of the apo lipoprotein measurements. Besides cholesterol in plasma and li poprotein fractions, which is currently used as an indicator of cardiovascular risk, the measurement of the AI and B apolipopro teins can provide additional information about the patients' clinical status. Several studies show that apo B is higher and apo AI is lower in patients with angiographically documented coronary heart dis ease than in symptomatic patients without coronary heart disease. Moreover, discriminant analysis indicated that the concentration of Apo AI and B in plasma are better discriminators than lipo protein cholesterol for identifying patients with coronary heart disease. In some studies the apo Bjapo AI ratio appears to be a more powerful predictor than individual lipoproteins. In a recent study carried out in men, apolipoproteins AI and B were better correlated with the severity of cardiovascular disease than HDL and LDL cholesterol. The predictive power of apolipoproteins could however not be demonstrated in all studies and the value of apolipoprotein measurements in the field of clinical chemistry is still controversial. This is probably due to discrepancies between the results of various studies, arising from differences in the type of immunoassays, the lack of universal reference materials, differ ences between study protocols, variations in the selection of patients and in the grading and interpretation of coronary lesions."

Lipids m the nervous system are major components of the m- branes. The presence of glycolipids in high concentrations is unique for the nervous system. Recent discoverres of the functronal and pathological importance of lipids such as diacylglycerols, polyphosphoinositides, prostaglandins, leukotrienes, docosahexaenoic acid, platelet activating factor, and gangliosides have markedly increased the number of publications on nervous system lipids. Many new methods have been developed. Thus, there IS a need for this volume that is dedicated to that methodo- gy. This volume places all of the methods for lipids into perspective with recommendations concerning the selection of a method for a specific purpose. Lloyd A. Horrocks vii Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preface to the Series vi Preface.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..*............................... xix List of Contributors Lipid Extraction Norman S. Radin 1 1. Introduction ...................................................... ......................................... 5 2. Properties of Solvents 2.1. Ethers ........................................................ 6 8 2.2. Alcohols ..................................................... 9 2.3. Halocarbons ................................................ 9 2.4. Hydrocarbons ............................................. 2.5. Miscellaneous Solvents ................................ 10 .................................... 10 3. Storage of Lipid Extracts 14 4. Homogenizers .................................................. ..... 15 5. Separating the Extract from the Tissue Residue 15 5.1. Use of Filtration .......................................... 16 5.2. Centrifugation ............................................ .............. 17 6. Removing Nonlipids from Lipid Extracts 6.1. Removal of Nonlipids by Evaporation and Reextraction ............................................... 17 .................... 17 6.2. Prewashing the Tissue Sample.. 6.3. Removal of Nonlipids by Precipitating the Lipids with the Proteins ............................... 18 ............................ 19 6.4. Liquid/Liquid Partitioning .................. 19 6.5. Removal of Nonlipids by Dialysis 6.6. Separation from Nonlipids by Changing a 21 Partition Constant .......................................

This monograph will put the biogenic marine lipids of many organisms in perspective. Volume 1 of 2.

This book represents the proceedings of a Satellite Symposium of the XIth International Congress of Biochemistry on "Control of Membrane Fluidity" which was held on July 7, 1979 at the Charles H. Best Institute, University of Toronto, Toronto, Canada. The meeting was organized by M. Kates and A. Kuksis and was supported by the International Congress of Biochemistry. The purpose of the meeting was to review recent progress in many different areas of investigation bearing on the role of lipids in the structural and functional property of the cell membrane commonly referred to as fluidity. The aim was to emphasize the factors controlling membrane fluidity as studied in appropriate in vitro and in vivo experiments. The Symposium included invited review papers and short papers offered by discussants. In assem. bling the book no distinction has been made between the two types of presentations, nor has any significance been attached to the chronological order of their presentation in the Symposium. As a result it was possible to provide a much more coherent and continuous presentation than that available at the meeting."

Docosahexaenoic acid (DHA) is an essential fatty acid of the omega-3 (n-3) series that has received substantial attention due to its pivotal roles in biological functions including brain and visual development, cognition, inflammatory responses and with decreasing risk or mortality with cardiovascular diseases. This book reviews the properties of DHA, as well as its functions and effects on health. Chapter One reviews the literature on the effects of DHA in bone health with a focus on the growth period. Chapter Two examines recent trends in research leading to the obtaining of bioactive lipids able to deliver DHA with a high bioavailability. Chapter Three discusses DHA's protective effect on organ function and inflammatory response in burns. Chapter Four considers the effects of dietary DHA on CVD risk factors, and in particular its actions on vascular endothelial cell dysfunction.

This second edition volume expands all chapters of the previous edition, which have been enhanced to cover the most recent developments, the current state of method research, and applications. Additional protocols were added to examine lipid-protein interactions by mass spectrometry, to use protein microarrays to investigate large sets of various proteins, to study membrane protein dynamics by UV resonance Raman spectroscopy, to analyze peptide-induced pore formation in membranes, and to investigate folding and insertion of membrane proteins. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Cutting-edge and authoritative, Lipid-Protein Interactions: Methods and Protocols, Second Edition is an essential resource for all researchers who are interested in obtaining up-to-date and comprehensive information about membrane structure and function.

The emerging field of lipidomics has been made possible because of advances in mass spectrometry, and in particular tandem mass spectrometry of lipid ions generated by electrospray ionization. The ability to carry out basic biochemical studies of lipids using electrospray ionization is predicated upon understanding the behaviour of lipid derived ions following collision induced decomposition and mechanisms of product ion formation. During the past 20 years, a wealth of information has been generated about lipid molecules that are now analysed by mass spectrometry, however there is no central source where one can obtain basic information about how these very diverse biomolecules behave following collisional activation. This book brings together, in one volume, this information so that investigators considering using tandem mass spectrometry to structurally characterize lipids or to quantitate their occurrence in a biological matrix, will have a convenient source to review mechanism of decomposition reactions related to the diversity of lipid structures. A separate chapter is devoted to each of seven major lipid classes including fatty acids, eicosanoids and bioactive lipid mediators, fatty acyl esters and amides, glycerol esters, glycerophospholipids, sphingolipids, and steroids. Mechanistic details are provided for understanding the pathways of formation of major product ions and ions used for structural characterization. In most cases specific ancillary information has been critical to understand the pathways, including isotope labeling and high resolution analysis of precursor and product ions. For a few specific examples such data is missing and pathways are proposed as a means to initiate further mass spectral experiments to prove or disprove pathway hypotheses. While this work largely centres on the lipid biochemistry of animal (mammalian) systems, general principles can be taken from the specific examples and applied to lipid biochemistry found in plants, fungi, prokaryotes and archeal organisms.

Eicosanoids are a diverse group of biologically active molecules derived from polyunsaturated fatty acid precursors. This volume draws together for the first time a series of overviews on the biosynthesis and functional significance of these and related compounds in a wide range of animals, plants, and micro-organisms. All chapters are written by recognized experts in their fields, and many make use of significant amounts of unpublished materials. This volume is aimed at advanced undergraduates and at researchers interested in lipid biochemistry and general plant and animal biology. Originally published in 1999. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

Sphingosine-1-phosphate is a bioactive lysophospholipid which has become, in recent years, the focus of much research interest as it has widespread developmental and physio-pathological actions, controlling events within the nervous, reproductive, gastrointestinal, vascular, respiratory, and immune systems, in addition to having a prominent role in cancer, early mammalian embryogenesis, and stem cells. In Sphingosine-1-Phosphate: Methods and Protocols, worldwide experts in the S1P field describe in-depth techniques in an array of cell types and with various physiological applications, showcasing the important effects of S1P in development and in physiopathology. As a volume in the Methods in Molecular Biology (TM) series, chapters contain introductions to their respective topics, lists of the relevant materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips for troubleshooting and avoiding known pitfalls. Authoritative and timely, Sphingosine-1-Phosphate: Methods and Protocols is a key resource for scientists working in this expanding and dynamic field.

Examines new research on the role of cholesterol in regulating ion channels and receptors and its effect on health

Drawing together and analyzing all the latest research findings, this book explores the role of cholesterol in the regulation of ion channels and receptors, including its pathological effects. It is the first book to comprehensively describe the complex mechanisms by which cholesterol regulates two major classes of membrane proteins. Moreover, it sheds new light on how cholesterol affects essential cellular functions such as the contraction of the heart, propagation of nerve impulses, and regulation of blood pressure and kidney function.

Written and edited by leading pioneers in the field, "Cholesterol Regulation of Ion Channels and Receptors" is divided into three parts: Part I, "Cholesterol Regulation of Membrane Properties," introduces the heterogeneity of cholesterol distribution in biological membranes and the physical and biological implications of the formation of cholesterol-rich membrane domains.Part II, "Cholesterol Regulation of Ion Channels," examines the mechanisms underlying cholesterol sensitivities of ion channels, including the regulation of ion channels by cholesterol as a boundary lipid.Part III, "Cholesterol Regulation of Receptors," explores the latest discoveries concerning how cholesterol regulates distinct types of receptors, including G-protein coupled receptors, LDL and scavenger receptors, and innate immune system receptors.

Increased levels of cholesterol represent a major health risk. Understanding cholesterol regulation of ion channels and receptors is essential for facilitating the development of new therapeutic strategies to alleviate the impact of pathological cholesterol conditions. With this book as their guide, readers have access to the most current knowledge in the field.

This third edition provides new and updated chapters detailing preparation of liposomes, physicochemical characterization of liposomes, lipid analysis, drug encapsulation, surface modification, stimuli response as well as cellular interaction, and biodistribution. Also included is an updated chapter on the history and evolution of the field of liposomology. Written in the format of the highly successful Methods in Molecular Biology series, each chapter includes an introduction to the topic, lists necessary materials and reagents, includes tips on troubleshooting and known pitfalls, and step-by-step, readily reproducible protocols. Authoritative and cutting-edge, Liposomes: Methods and Protocols, Third Edition aims to serve as a reference for graduate students, post-doctoral researchers as well as established investigators utilizing lipid-based systems.

This fully updated book presents an account of areas of utility, techniques, and bioinformatic advancements in the field of lipidomics. Beginning with protocols for lipid isolation and extraction, the volume continues with techniques from extractive mass spectrometry to imaging mass spectrometry methods allowing localization of lipids in tissues. These protocols have been complemented by methods addressing specific problems from membranes, fractionated subcellular compartments or organelles to whole organisms. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step and readily reproducible laboratory protocols, as well as tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Lipidomics: Methods and Protocols, Second Edition serves as an ideal guide for biochemists, molecular biologists, neuroscientists, vision research scientists, as well as all biomedical researchers with interest in disease discovery and drug development.

This detailed volume presents a variety of specialized analytical methods on a wide range of glycolipids. From sphingoglycolipids to lipid A, an immune system stimulant present in lipopolysaccharide, the book delves into how glycolipid structure on the surface of the cell membrane, which characterizes each organism, is crucial for the coexistence or repulsion between organisms. In addition, glycolipids play an important role in infections in animals and other organisms by targeting host cell membranes, if enveloped viruses are considered as living organisms. Written for the highly successful Methods in Molecular Biology series, chapters include introduction to their respective topics, lists of the necessary materials and reagents, step-by-step and readily reproducible laboratory protocols, as well as tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Glycolipids: Methods and Protocols serves as an ideal guide to the most advanced glycolipid research in an effort to help researchers make their research more fruitful.

This detailed book explores examples of current in vitro and in silico techniques that are at the forefront of lipid membrane research today. Beginning with methods and strategies associated with the creation and use of lipid membrane models in various research settings, the volume continues with electrical impedance spectroscopy strategies and methods to identify how ions and proteins interact with model lipid bilayers, guidance on lipid bilayer in silico molecular dynamics modeling, novel techniques to explore lipid bilayer characteristics using neutron scattering, IR spectroscopy, and atomic force microscopy (AFM), as well as unique fluorescence techniques. Written in the highly successful Methods in Molecular Biology series style, chapters include introductions to their respective topics, lists of the necessary materials, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, Membrane Lipids: Methods and Protocols serves as an ideal guide for researchers seeking to further investigate the often complicated world of lipid membrane biophysics.

This volume gives a comprehensive insight into established and novel methods to analyze the structure and function of lipid rafts. This book covers topics such as isolation of lipid rafts and their functional analysis using biochemical methods; visualization of lipid rafts and their interaction with proteins using fluorescence-related methods; preparation of giant lipid vesicles and fluorescence spectroscopy; FRET and FRAP; and using photo-activated cross-linking of a ceramide analog combined with proximity ligation assay. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Thorough and cutting-edge, Lipid Rafts: Methods and Protocols is a valuable resource for both novice and expert researchers interested in learning more about the function of lipid rafts in many areas of cell biology and medicine.

This book is written by international experts with both academic and industrial credentials. It presents for the first time, a collection of up- to- date scientific advances in the area of edible fats and oils technology, over a span of 10 years from 2009 to the year 2019. The book covers the existing and recent advanced techniques adopted in the edible fats and oils research and touches on the processing and modification, to the traceability and sustainability issues of fats and oils. Some recent technologies like supercritical carbon dioxide, microwave, ultrasound, and enzymatic- assisted processes, ionic liquid, enzymatic processes, biosensor and membrane technology are presented in the book. The book aims to provide the technologists and researchers in research, development and operations in the edible fats and oils industries with critical and readily accessible information on the recent advances in the field. The book is divided into three broad sections- Fats and Oils Chemistry and Processing, Fats and Oils Modification and Health Implications, and Fats and Oils Safety, Social, Environmental and Economic Impacts. It is an extremely comprehensive and valuable resource, which serves as an essential reference for students and lipid scientists from academia or industry.

This book offers a new physical chemistry perspective on the control of lipid oxidation reactions by antioxidants, and it further explores the application of several oxidation inhibition strategies on food and biological systems. Divided in 3 parts, the book reviews the latest methods to control lipid oxidation, it examines lipid oxidation and inhibition in different food systems, and it finishes with an overview of the biological, health and nutritional effects of lipid oxidation. Chapters from expert contributors cover topics such as the use of magnetic methods to monitor lipid and protein oxidation, the kinetics and mechanisms of lipid oxidation and antioxidant inhibition reactions, interfacial chemistry, oxidative stress and its impact in human health, nutritional, sensory and physiological aspects of lipid oxidation, and new applications of plant and marine antioxidants. While focused on lipid peroxidation in food and biological systems, the chemistry elucidated in this book is applicable also to toxicology, medicine, plant physiology and pathology, and cosmetic industry. The book will therefore appeal to researchers in the lipid oxidation field covering food, biological and medical areas.

This detailed volume covers conventional MS-based "shotgun lipidomics" by which samples are introduced by infusion or loop injection, as well as LC-MS-based lipidomics, which are becoming increasingly important due to the ever-increasing demand for a complete and precise lipid analysis of the complex and diversified lipids in nature. The volume features protocols applying chemical reactions, the on-line photochemical reactions combined with various MS methods for comprehensive characterization of various lipid classes, and quantification of specific and rare lipids. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Mass Spectrometry-Based Lipidomics: Methods and Protocols serves as an invaluable guide for biochemists and mass spectroscopists who are interested in lipid studies.

This detailed book examines experimental approaches used to investigate the regulation and function of phosphoinositides (PtdInsP), rare eukaryotic phospholipids with a broad role in biological processes such as signal transduction, cell migration and adhesion, cell growth, subcellular organization, and membrane trafficking. The combination of complementary biochemical, mass spectrometry, and imaging methods are instrumental for the detection and quantification of PtdInsP species, as well as induced dimerization methods, affinity precipitation or co-sedimentation with liposomes, protein insertion within lipid bilayers, and enzymatic assays, or through emerging methods like native mass spectrometry and microfluidics, all of which are touched upon in this volume. Written in the highly successful Methods in Molecular Biology format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Phosphoinositides: Methods and Protocols provides detailed methodology for both specialist and novice researchers on a variety of complementary methods that have been instrumental in dissecting the regulation, dynamics, and function of PtdInsPs.

This volume explores analytical methods to study complex lipid mixtures from plants and algae. The chapters in this book are organized into five parts and cover topics such as basic methods of lipid isolation and analysis; mass spectrometry and NMR analysis; lipid isolation and analysis from plant tissues, cell compartments and organelles; lipid signaling, lipid-protein interactions, and imaging; and lipid databases. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Cutting-edge and comprehensive, Plant Lipids: Methods and Protocols is a valuable guide for experienced researchers and undergraduate, graduate, and Ph.D. students. This book is also an excellent resource for novice scientists with little to no experience in lipid experiments who are interested in approaching this field experimentally.

In this book, renowned scientists describe how cholesterol interacts with various proteins. Recent progress made in the high-resolution visualization of cholesterol-protein interactions using crystallography and cryogenic electron microscopy has substantially advanced the knowledge of critical features. These features enable specific recognition of the cholesterol molecule by proteins, a process that was built on earlier studies using binding assays, computational modeling and site-directed mutagenesis. Direct Mechanisms in Cholesterol Modulation of Protein Function offers comprehensive insights into the current understanding of cholesterol-driven modulation of protein function via direct sensing. Its nine chapters are organized into two distinct parts. In the first part, the chapters introduce the reader to the general characteristics of cholesterol binding sites in proteins. This part starts with a tour into common cholesterol recognition motifs, followed by an overview of the major classes of steroid-binding proteins. It then continues with two chapters that present a comprehensive analysis of molecular and structural characteristics of cholesterol binding sites in transmembrane and soluble protein domains. In the second part of the book, examples of cholesterol binding sites and consequences of specific cholesterol recognition for protein function are presented for G protein-coupled receptors, ion channels and cholesterol-transporting proteins. The book is valuable for undergraduate and graduate students in biochemistry and nutrition, as well as basic science and medical researchers with a keen interest in the biophysical properties of cholesterol and physiological consequences of cholesterol presence in biological systems.