16 Result(s)

Article

Molecular species of sphingomyelin in sphingomyelinase-sensitive and sphingomyelinase-resistant pools of HL-60 cells

This study of sphingomyelin molecular species in undifferentiated and differentiated (granulocytic form) HL-60 cells demonstrated only minor differences in the distribution of species between the sphingomyelin...

Veronica Fitzgerald, Merle L. Blank, Fred Snyder in Lipids (1995)

Article

Chemical synthesis and physiological activity of sulfonium analogues of platelet activating factor

Phosphatidylsulfocholine (PSC), the sulfonium analogue of phosphatidylcholine (PC), occurs naturally in some diatoms. The replacement of the −N⁺(CH₃)₃ group by a −S⁺(CH₃)₂ results in an increase in the polar head...

Morris Kates, George A. Adams, Merle L. Blank, Fred Snyder in Lipids (1991)

Article

Dietary supplementation with ether-linked lipids and tissue lipid composition

The goal of this investigation was to determine the effect of an alkylglycerol dietary supplement on the lipid composition of several major organs. Lipids from kidney, liver, and lung tissues of rats on a labo...

Merle L. Blank, Edgar A. Cress, Zigrida L. Smith, Fred Snyder in Lipids (1991)

Article

Phase transition of an unnatural analog of phosphatidylcholine: Phosphatidyl-N-isopropylethanolamine

The phase-transition temperature, of an aqueous dispersion of dipalmitoyl phosphatidyl-N-isopropylethanolamine was determined was determined usingtrans-parinaric acid as a fluorescent probe. Phosphatidyl-N-isopro...

Ten-Ching Lee, Fred Snyder in Lipids (1981)

Article

Occurrence of ethanolamine- and choline-containing plasmalogens in adipose tissue

Analysis of phospholipids in porcine, bovine and rat adipose tissue revealed a relatively high level of plasmalogens (O-alk-1-enyl lipids). About 50% of the ethanolamine phospholipids in the pig and beef samples ...

M. R. Grigor, Anita Moehl, Fred Snyder in Lipids (1972)

Article

Structural relationships between glycerides of pig serum and adipose tissue

Structural analyses have been performed on the triacylglycerols and phosphoglycerides isolated from adipose tissue, serum chylomicrons, and serum lipoproteins from pigs. The triacylglycerols from adipose tissu...

M. R. Grigor, M. L. Blank, Fred Snyder in Lipids (1971)

Article

Long chain fatty alcohols in normal and neoplastic tissues

Small quantities of long chain fatty alcohols (esterified or free or both) were found in four normal tissues (about 0.01% of total neutral lipids) and three neoplasms (about 0.3% of total neutral lipids). The ...

M. L. Blank, Fred Snyder in Lipids (1970)

Article

The quantitative production of aldehydes from O-alk-1-enyl glycerols

The quantitative recovery and structural alterations of aldehydes liberated from O-alk-1-enyl glycerols on thin layer chromatographic layers have been evaluated by using¹⁴C-labeled fatty aldehydes and chromatogra...

Robert E. Anderson, Ronald D. Garrett, M. L. Blank, Fred Snyder in Lipids (1969)

Article

Quantitative determination of alk-1-enyl- and alkyl-glyceryl ethers in neutral lipids and phospholipids

A quantitative method for the simultaneous determination of alk-l-enyl- and alkyl-glyceryl ethers is described. Complete hydrogenolysis of carboxylate and phosphate esters of neutral lipids and phospholipids w...

Randall Wood, Fred Snyder in Lipids (1968)

Article

Lipid droplets and glyceryl ether diesters in ehrlich ascites cells grown in tissue culture

Shu-Sing Cheng, Claude Piantadosi, Fred Snyder in Lipids (1967)

Article

Chemical and physical properties of isomeric glyceryl monoethers

Long-chain saturated and mono- and diunsaturated 1- and 2-glyceryl monoethers were synthesized by reacting 1,2-isopropylidene and 1.3-benzylidene glycerol potassium salts with alkyl halides in the preparation ...

Randall Wood, Fred Snyder in Lipids (1967)

Article

An unidentified lipid prevalent in tumors

An unidentified lipid was found in five different tumor sources. It was not found in liver, bone marrow or plasma from tumor-bearing animals, nor in the extracellular fluid supporting growth of Ehrlich ascites...

Fred Snyder, Edgar A. Cress, Nelson Stephens in Lipids (1966)

Article

The GLC and TLC resolution of diastereoisomeric polyhydroxystearates and assignment of configurations

Trifluoroacetate (TFA) derivatives of methyl 12-hydroxystearate, methyl ricinoleate, five positional isomers of methylthreo- anderythro-dihydroxystearate, four diastereoisomeric methyl 9,10–12-trihydroxystearates...

Randall Wood, E. L. Bever, Fred Snyder in Lipids (1966)

Article

Metabolism of alpha-alkoxy glyceryl monoethers in rat liver, in vivo and in vitro

An investigation of the metabolism of¹⁴C and³H labeled α-isomers of C₁₆ and C₁₈ alkoxy monoethers, administered intravenously and added to liver slices, showed extensive cleavage of the ether bond in rat liver. A...

Fred Snyder, Raymond C. Pfleger in Lipids (1966)

Article

The synthesis of¹⁴C- and³H-labeled glycerol ethers

The racemic¹⁴C-and³H-labeled alpha and beta derivatives of octadecyl glycerol ether (batyl alcohol) and of hexadecyl glycerol ether (chimyl alcohol) of high specific activity were synthesized by treating the appr...

Edward O. Oswald, Claude Piantadosi, Carl E. Anderson, Fred Snyder in Lipids (1966)

Article

Gas-liquid chromatographic analysis of long chain isomeric glyceryl monoethers

A quantitative method is described for the gas chromatographic analysis of glyceryl ethers using their trifluoroacetate (TFA) and trimethylsilyl (TMS) ether derivatives. Both derivatives are prepared at room t...

Randall Wood, Fred Snyder in Lipids (1966)