Results 71 to 80 of about 1,195,570 (202)
A radioimmunoassay for the determination of 3 beta-hydroxy-5-cholenoic acid in human serum has been developed, using 3 beta-hydroxy-5-cholenoyl-thyroglobulin as immunogen and 3 beta-hydroxy-5-cholenoylglycyl-125I histamine as radioactive ligand.
E I Minder, G Karlaganis, G Paumgartner
doaj +1 more source
Fatty acids of glycosphingolipids from pig blood fractions
Four glycolipids have been isolated from three fractions of pig blood. The glycolipids were presumably cerebroside, diglycosyl ceramide, triglycosyl ceramide, and globoside.
ERIC COLES, J. LINDSLEY FOOTE
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α-Hydroxy-β-amino acids were synthesized with excellent yields for the first time in water and by a simple procedure based on a copper catalytic cycle, which included the recovery and reuse of the catalyst and is possible to realize by using only water ...
Luigi Vaccaro (1496110) +3 more
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Sphingomyelin, ceramide, cerebroside, and cerebroside sulfate from beef brain were isolated by column chromatography in quantitative yield and in pure form. The fatty acid composition of each sphingolipid was determined by gas-liquid chromatography (GLC).
John S. O'Brien, George Rouser
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Free radical-induced oxidation of polyunsaturated fatty esters in low-density lipoproteins (LDLs) generates 2-lysophosphatidylcholine (PC) and cholesterol esters of γ-hydroxy-α,β-unsaturated aldehydic acids that covalently modify LDL protein, and protein
Yijun Deng (1264830) +1 more
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A convenient procedure for the synthesis of ceramides
A procedure for the preparation of ceramides by direct coupling of long-chain bases and fatty acids in the presence of a mixed carbodiimide is described.
Sven Hammarström
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Mono (S) hydroxy fatty acids: novel ligands for cytosolic actin
The ubiquitous hydroxylated fatty acids derived from arachidonic acid (HETEs) or linoleic acid (HODEs) exhibit diverse biological effects including chemotaxis, cell proliferation, and modulation of several enzymatic pathways, including the 5-lipoxygenase
Li-Ta Kang, Jack Y. Vanderhoek
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In the synthesis of peptidomimetics containing α-hydroxy-β-amino acid, the coupling of this Nβ-protected β-amino acid with amine components was generally performed without the protection of its α-hydroxyl group.
Tooru Kimura (2332138) +6 more
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Determination of ester position in isomeric (O-acyl)-hydroxy fatty acids by ion trap mass spectrometry [PDF]
Rationale\ud \ud (O-acyl)-hydroxy fatty acids (OAHFAs) are a recently discovered class of endogenous lipids, generating significant interest for their correlation with enhanced glucose tolerance.
Marshall, D.L. +20 more
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Synthesis of long-chain Hydroxy Ketones from Hydroxy Acids
The acyl chlorides derived from threo- and erythro-dihydroxystearic acid and -dihydroxybehenic acid, in which the alcohol groups are unreactive, are converted into ketene dimers by reaction with triethylamine and thence to long-chain tetra- hydroxy ...
JA Lamberton
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