Lipids overview

See also. Clinical Analysis Sample Handling. Derivatization of Analytes. Extraction Solvent Extraction Principles Supercritical Fluid Extraction Solid-Phase Extraction. Lipids Overview. 

See also Gas Chromatography Overview. Lipids Overview Fatty Acids Poiar Lipids. Mass Spectrometry Overview. Nuclear Magnetic Resonance Spectroscopy-Applicable Elements Phosphorus-31. 

See also Carbohydrates Overview. Elemental Speciation Overview. Food and Nutritional Analysis Overview. Gas Chromatography Mass Spectrometry. Lipids Overview. Liquid Chromatography Liquid Chromatography-Mass Spectrometry Food Applications. Mass Spectrometry Overview Principles Ionization Methods Overview Atmospheric Pressure Ionization Techniques Eiectrospray Matrix-Assisted Laser Desorption/lonization Pyrolysis. Proteins Traditional Methods of Sequence Determination. Vitamins Overview. 

See also Extraction Solvent Extraction Principles. Gas Chromatography Multidimensional Techniques Mass Spectrometry. Lipids Overview. Quaiity Assurance ... 

This chapter has given an overview of the structure and dynamics of lipid and water molecules in membrane systems, viewed with atomic resolution by molecular dynamics simulations of fully hydrated phospholipid bilayers. The calculations have permitted a detailed picture of the solvation of the lipid polar groups to be developed, and this picture has been used to elucidate the molecular origins of the dipole potential. The solvation structure has been discussed in terms of a somewhat arbitrary, but useful, definition of bound and bulk water molecules. 

Rye K-A et al Overview of plasma lipid transport. In Plasma Lipids and Their Role in Disease. Barter PJ, Rye K-A (editors). Harwood Academic Publishers, 1999. 

In this chapter we will review the recent investigations of the structure of both the a and P subunit, and the function of gastric H,K-ATPase. We will proceed from a brief overview of the tissue distribution to a successive discussion of structure, kinetics, transport properties, lipid dependency, solubilization and reconstitution, and inhibitors of H,K-ATPase that may label functionally important domains of the enzyme. 

The basic mechanisms of lipid peroxidation are well understood and described in the literature in many excellent reviews (e.g. Girotti, 1985 Gardner, 1989 Buettner, 1993). Here, apart from essential background information, we will restrict our discussion in this short overview to recent advances in our understanding of lipid peroxidation, emphasizing those aspects relevant to coronary heart disease. Some of the biological implications of these reactions will be discussed by others in this volume. 

General anesthetics are usually small solutes with relatively simple molecular structure. As overviewed before, Meyer and Overton have proposed that the potency of general anesthetics correlates with their solubility in organic solvents (the Meyer-Overton theory) almost a century ago. On the other hand, local anesthetics widely used are positively charged amphiphiles in solution and reversibly block the nerve conduction. We expect that the partition of both general and local anesthetics into lipid bilayer membranes plays a key role in controlling the anesthetic potency. Bilayer interfaces are crucial for the delivery of the anesthetics. 

This review gives an overview of the structure of the lipid bilayers and their role in limiting drug delivery. 

This chapter gives an overview of GC/MS analytical procedures used for lipid determination, and a summary of the complex issue of lipid chromatographic data interpretation in paintings and archaeological objects. Some examples and case studies are also included. 

Liu TZ, Stern A, Morrow JD (1998) The isoprostanes unique bioactive products of lipid peroxidation an overview. J Biomed Sci 5 415-420... 

While the lipid bilayer has a very low water content, and therefore behaves quite hydrophobically, especially in its core (see Chapter 2 of this volume), the cell wall is rather hydrophilic, with some 90% of water. Physicochemically, the cell wall is particularly relevant because of its high ion binding capacity and the ensuing impact on the biointerphasial electric double layer. Due to the presence of such an electric double layer, the cell wall possesses Donnan-like features, leaving only a limited part of the interphasial potential decay in the diffuse double layer in the adjacent medium. For a detailed outline, the reader is referred to recent overviews of the subject matter [1,2]. 

Huckins, J.N. Prest, H.F. Petty, J.D. Lebo, J.A. Hodgins, M.M. Clark, R.C. Alvarez, D.A. Gala, W.R. Steen, A. Gale, R.W Ingersoll, C.G. 2004, Overview and comparison of lipid-containing semipermeable membrane devices (SPMDs) and oysters (Crassostrea gigas) for assessing chemical exposure. Environ. Toxicol. Chem. 23 1617-1628. 

Huckins J.N. Prest H.F Petty J.D. R0e T.I. Meadows J.C. Echols K.R. Lebo J.A. Clark R.C. 1998, A Overview of the Results of Several Comparisons of Lipid-containing Semipermeable Membrane Devices (SPMDs) and Biomonitoring Organisms for Assessing Organic Chemical Exposure. Abstracts of the 19th Annual National Meeting SETAC Charlotte, NC November 15-19, 1998 p 215. 

---