Results 31 to 40 of about 10,346 (145)

Determination of phosphatidylcholine and disaturated phosphatidylcholine content in lung surfactant by high performance liquid chromatography.

Journal of Lipid Research, 1989
A rapid isocratic method for determining the total phosphatidylcholine and disaturated phosphatidylcholine levels in lung surfactant preparations by high performance liquid chromatography (HPLC) is described.
J Scarim, H Ghanbari, V Taylor, G Menon
doaj   +1 more source

Oxidized phosphatidylcholines are produced in renal ischemia reperfusion injury. [PDF]

PLoS ONE, 2018
The aim of this study was to determine the individual oxidized phosphatidylcholine (OxPC) molecules generated during renal ischemia/ reperfusion (I/R) injury.Kidney ischemia was induced in male Sprague-Dawley rats by clamping the left renal pedicle for ...
Zahra Solati, Andrea L Edel, Yue Shang, Karmin O, Amir Ravandi   +4 more
doaj   +1 more source

Reliability of Serum Metabolites over a Two-Year Period: A Targeted Metabolomic Approach in Fasting and Non-Fasting Samples from EPIC.

PLoS ONE, 2015
ObjectiveAlthough metabolic profiles have been associated with chronic disease risk, lack of temporal stability of metabolite levels could limit their use in epidemiological investigations.
Marion Carayol, Idlir Licaj, David Achaintre, Carlotta Sacerdote, Paolo Vineis, Timothy J Key, N Charlotte Onland Moret, Augustin Scalbert, Sabina Rinaldi, Pietro Ferrari   +9 more
doaj   +1 more source

Viscosity of phosphatidylcholine (lecithin)

Journal of Pharmacy and Pharmacology, 1966
AbstractThe viscosities of egg lecithin dispersed in water have been measured by means of a Couette viscometer. The more concentrated dispersions are thixotropic, but below 1·8% w/w of lecithin the sols become Newtonian. From the extrapolated ratio of specific viscosity to volume fraction, the dispersed particles are considered to be of an elongated ...
J. Perrin, L. Saunders
openaire   +3 more sources

Complexation of Phosphatidylcholine Lipids with Cholesterol [PDF]

Biophysical Journal, 2004
It is postulated that the specific interactions between cholesterol and lipids in biological membranes are crucial in the formation of complexes leading subsequently to membrane domains (so-called rafts). These interactions are studied in molecular dynamics simulations performed on a dipalmitoylphosphatidylcholine (DPPC)-cholesterol bilayer mixture and
David L. Bostick, Sagar A. Pandit, Max L. Berkowitz   +2 more
openaire   +3 more sources

Use of 31PNMR spectroscopy to follow the time course of phosphatidylcholine chemical synthesis.

Journal of Lipid Research, 1985
31PNMR spectroscopy is shown to be useful for studying the chemical synthesis of phosphatidylcholine from phosphatidic acid and choline. Sharp, well-resolved resonances were obtained by chelating multivalent cations, thereby enabling quantitation of ...
P R Meers, G W Feigenson
doaj   +1 more source

Increased dietary methionine, lysine and histidine supply modulated the heat stress-induced metabolic remodeling of dairy cows

Frontiers in Animal Science
Increasing dietary Met, Lys, and His supply without increasing the dietary protein content was reported to partially alleviate the productive and physiological impact of heat stress. Nevertheless, the metabolic pathways involved are yet to be identified.
Ezequiel Jorge-Smeding, Ezequiel Jorge-Smeding, Alexis Ruiz-González, Alexis Ruiz-González, Yue Hei Leung, Ana Inés Trujillo, Ana Laura Astessiano, Daniel R. Ouellet, Hélène Lapierre, Daniel E. Rico, Ákos Kenéz   +10 more
doaj   +1 more source

Structural library and visualization of endogenously oxidized phosphatidylcholines using mass spectrometry-based techniques

Nature Communications, 2021
Oxidized phosphatidylcholines (oxPCs) are a structurally diverse class of lipids associated with various diseases. Here, the authors use mass spectrometry to construct a spectral library of 465 oxPCs and subsequently profile oxPCs formed during ...
Yuta Matsuoka, Masatomo Takahashi, Yuki Sugiura, Yoshihiro Izumi, Kazuhiro Nishiyama, Motohiro Nishida, Makoto Suematsu, Takeshi Bamba, Ken-ichi Yamada   +8 more
doaj   +1 more source

Advent of Novel Phosphatidylcholine-Associated Nonsteroidal Anti-Inflammatory Drugs with Improved Gastrointestinal Safety

Gut and Liver, 2013
The mucosa of the gastrointestinal (GI) tract exhibits hydrophobic, nonwettable properties that protect the underlying epithelium from gastric acid and other luminal toxins.
doaj   +1 more source

Mass spectrometry of the phosphatidyl amino alcohols: detection of molecular species and use of low voltage spectra and metastable scanning in the elucidation of structure

Journal of Lipid Research, 1972
The basic fragmentation mechanisms occurring in the mass spectra of the phosphatidylcholines have been described previously, and evidence was adduced to show that many of the more abundant ions are related by electron impact-induced processes.
R.A. Klein
doaj   +1 more source