Chemistry and Physics of Lipids

Items from 1 to 11 out of 11 results

article

Trigger lipids inducing pH-dependent liposome fusion

Yoshikatsu Ogawa, Masato Kodaka, Hiroaki Okuno

Chemistry and Physics of Lipids > 2002 > 119 > 1-2 > 51 - 68

Aspartic acid-derived artificial lipids (ADLs; s indicates the number of the methylene groups, s=2, 4, 6, 8, 10, 12) () with various carboxyl alkyl chains as head groups are designed and synthesized, which are incorporated into liposome membranes by sonication. Fluorescence resonance energy transfer (FRET) measurements indicate that ADL6, ADL8 and ADL10 have high lipid-mixing ability in the acidic...

article

Subject Index

Chemistry and Physics of Lipids > 2002 > 119 > 1-2 > 85 - 86

article

A MAS-NMR study of the location of (+)-totarol, a diterpenoid bioactive molecule, in phospholipid model membranes

Angela Bernabeu, S. Shapiro, José Villalaı́n

Chemistry and Physics of Lipids > 2002 > 119 > 1-2 > 33 - 39

(+)-Totarol, a diterpenoid isolated from Podocarpus spp., is a potent antioxidant and antibacterial agent. Although the mechanism of action of this hydrophobic molecule is poorly understood, recent work from our laboratories suggests that it could be due to membranotropic interactions. The location of (+)-totarol in membranes and its interaction with membrane components is therefore of considerable...

article

Chemical stability of 2-arachidonylglycerol under biological conditions

Carol A. Rouzer, Kebreab Ghebreselasie, Lawrence J. Marnett

Chemistry and Physics of Lipids > 2002 > 119 > 1-2 > 69 - 82

Recent evidence indicates that 2-arachidonylglycerol (2-AG) is a potent and specific ligand for the central and peripheral cannabinoid receptors. Therefore, the chemical stability of this molecule under biological conditions is of interest. A method for the isolation and detection of 2-AG using HPLC with evaporative light scattering detection is described. The method provides an extraction recovery...

article

Production of conjugated linoleic acids through KOH-catalyzed dehydration of ricinoleic acid

Lin Yang, Yu Huang, Han Qing Wang, Zhen-Yu Chen

Chemistry and Physics of Lipids > 2002 > 119 > 1-2 > 23 - 31

Production of conjugated linoleic acids (CLA) using castor oil as starting material involves conversion of ricinoleic acid to methyl 12-mesyloxy-octadec-9-enoate (MMOE) followed by dehydration. This process usually uses 1,8-diazabicyclo-(5.4.0)-undec-7-ene (DBU) as an expensive dehydrating reagent. The present study reports that potassium hydroxide (KOH) can serve as a dehydrating reagent in replacement...

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Editorial Board

Chemistry and Physics of Lipids > 2002 > 119 > 1-2 > iii

article

The effects of amphotericin B on pure and ergosterol- or cholesterol-containing dipalmitoylphosphatidylcholine bilayers as viewed by ² H NMR

Marie-Josée Paquet, Isabelle Fournier, Joanna Barwicz, Pierre Tancrède, more

Chemistry and Physics of Lipids > 2002 > 119 > 1-2 > 1 - 11

Amphotericin B (AmB) is a widely used polyene antibiotic to treat systemic fungal infections. This drug is known to be lethal to fungal cells but it has also side effect toxicity on mammalian cells. The mechanism of action of AmB is thought to be related to the difference of the main sterol present in the mammalian and the fungal cells, namely cholesterol and ergosterol, respectively. The effect of...

article

Author index

Chemistry and Physics of Lipids > 2002 > 119 > 1-2 > 83

article

Transfer of orlistat through oil-water interfaces

Ali Tiss, Hans Lengsfeld, Paul Hadváry, Alain Cagna, more

Chemistry and Physics of Lipids > 2002 > 119 > 1-2 > 41 - 49

The transfer of radiolabelled orlistat ([ ¹ ⁴ C]orlistat), a potent gastrointestinal lipase inhibitor, through an oil-water interface from a single oil droplet to an aqueous phase was investigated, using an oil drop tensiometer. The absolute transfer fluxes were found to be very low, even in the presence of micellar concentrations of bile salts, which increased their values from 0.2 to...

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Volume contents

Chemistry and Physics of Lipids > 2002 > 119 > 1-2 > 87

article

Polymorphism of N-stearoylethanolamine: differential scanning calorimetric, vibrational spectroscopic (FTIR), and crystallographic studies

J. Wouters, S. Vandevoorde, C. Culot, F. Docquir, more

Chemistry and Physics of Lipids > 2002 > 119 > 1-2 > 13 - 21

Based on a series of physicochemical properties (differential scanning calorimetry, powder X-ray crystallographic studies and Fourier-transform infra red spectroscopic analysis) determined for N-stearoylethanolamine (NSEA) (C18:0) at different temperatures, evidence has been given that this compound can exist in (at least) three polymorphic forms. Powder X-ray crystallography clearly demonstrates...

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119
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2002

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Keywords

(+)-TOTAROL (1)
2H NMR (1)
ALKALI ISOMERIZATION (1)
AMPHOTERICIN B (1)
ARACHIDONYLGLYCEROL (1)
BILE SALT (1)
CANNABINOID (1)
CHOLESTEROL (1)
CONJUGATED LINOLEIC ACIDS (1)
DIFFERENTIAL SCANNING CALORIMETRY (1)
EICOSANOID (1)
ENDOCANNABINOID (1)
ERGOSTEROL (1)
EVAPORATIVE LIGHT SCATTERING DETECTION (1)
INTERFACE (1)
LINOLEIC ACID (1)
LIPOSOME (1)
MAGIC ANGLE SPINNING NMR (1)
MEMBRANE (1)
MODEL MEMBRANES (1)
MONOACYL GLYCEROL (1)
N-ACYLETHANOLAMINES (1)
OIL DROP (1)
ORLISTAT (1)
PHOSPHOLIPID (1)
POLYMORPHISM (1)
POWDER DIFFRACTION (1)
RICINOLEIC ACID (1)
TRIGGER LIPIDS (1)
VIBRATIONAL SPECTROSCOPY (1)
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