In this study we investigated resveratrol (trans-3,5,4'-trihydroxystilbene) solubilization with sodium 3α,12 α-dihydroxy-7-oxo-5 β-cholanoate (S7-OD) and sodium dodecyl sulfate (SDS). The investigation was aimed at determining whether large spherical micelles (SDS) or small longitudinal micelles (S7-OD) are more convenient for incorporation of resveratrol. Also, we studied resveratrol behavior ...

A two-step purification of pneumococcal eclipse complex is described, which uses sucrose gradient sedimentation followed by agarose gel permeation chromatography. Purified complex contains, in addition to donor DNA single strands, macromolecular material that can be labeled with methionine or leucine during development of competence. This material co-chromatographed with eclipse complex DNA on ...

The objective of this study was to evaluate the morphology of decellularized and/or cryopreserved porcine pulmonary valves, to determine a solution capable of completely remove the cells without damaging the extracellular matrix. Porcine pulmonary valves were incubated for 24 hs in sodium deoxicholate 1% or sodium dodecyl sulfate 0.1 and 0.3%, with or without associated cryopreservation. Evalua...

HIERHOLZER, KLAUS, ROBERT CADE, RUTH GURD, RICHARD KESSLER AND ROBERT PITTS. &‘top-flow analysis of renal reabsorption and excretion of sulfate in the dog. Am. J. Physiol. 198(4) : 8yy-837. 1g6o.-Utilizing the stop-flow technique, the site of reabsorption of inorganic sulfate has been localized in the proximal part of the nephron of the dog. Sulfate is most avidly reabsorbed in that portion of ...

Previous papers dealt with the discovery that hydrolysis of 17-hydroxycorticosteroid glucuronides in urine with fi-glucuronidase preparations from bovine liver is increased by adding sodium sulfate to the incubation medium. Here, we conclude that sodium sulfate not only increases the activity of bovine liver /9-glucuronidase on 17-hydroxycorticosteroid glucuronides and p-nitrophenyl glucuronide...

Sodium alkyl sulfate micelles are predicted to grow as a power law of the total counterion salt concentration, Yaq, in the aqueous phase as follows: NA = K~(Y~~)Y, where N A is the micelle aggregation number and ~2 and y are constants which are estimated from the critical micelle concentration and the apparent degree of counterion attachment. For sodium dodecyl sulfate, NA = 162(Y,q)1/4 is pred...