Injection of choline-(3)H into choline-deficient rats resulted in an enhanced incorporation of the label into liver lecithin, as compared to the incorporation of label into liver lecithin of normal rats. The results obtained with the use of different lecithin precursors indicate that in the intact liver cell, both in vivo and in vitro, exchange of choline with phosphatidyl-choline is not signif...

Many studies performed in the last decade showed significantly higher absorption rates and a greater local pharmacological effect for drugs applied to the skin entrapped in liposomes as compared to conventional topical formulation [1]. It is also well established that liposome bilayer properties play an important role in transport. But there is a lack of methods by which it is possible to direc...

We describe a new method of complete analysis for lecithin, lysolecithin, and sphingomyelin in amniotic fluid. The analysis is based on alkaline hydrolysis of the lecithins and the enzymic hydrolysis of sphingomyelin. The choline formed in each instance is enzymically phosphorylated with [gamma-32P]ATP to yield [gamma-32P]phosphorylcholine, which is isolated by anion-exchange chromatography and...

soy flour is the least processed form of soy protein products which has become increasingly popular in food technology for its nutritional benefits, low cost and good functional properties. the aim of this study was to investigate functional properties of soy flours produced by four different industrial processes: defatted, defatted and toasted, low fat, and full fat soy flours. because of diff...

The present study was performed to determine whether the degree of lecithin hydrophobicity regulates bile metastability and, therefore, affects the process of cholesterol crystallization. Supersaturated model bile (MB) solutions were prepared with an identical composition on a molar basis (taurocholate/lecithin/cholesterol, 73:19.5:7.5; total lipid concentration 9 g/dl) except for the lecithin ...