Thyroxine and triiodothyronine are transported in the blood as noncovalent complexes with certain serum proteins. This has been shown by many investigators and was the subject of an extensive recent review by Robbins and Rall (1). The binding proteins are an a-globulin (called thyroxine-binding globulin), a prealbumin, and serum albumin. The first appears to be the most significant binder of th...

Thyroxine and triiodothyronine are transported in the blood as noncovalent complexes with certain serum proteins. This has been shown by many investigators and was the subject of an extensive recent review by Robbins and Rall (1). The binding proteins are an a-globulin (called thyroxine-binding globulin), a prealbumin, and serum albumin. The first appears to be the most significant binder of th...

A label for the bilirubin binding sites of human serum albumin was synthesized by reacting 2 mol of Woodward's reagent K (N-ethyl-5-phenylisoxazolium-3'-sulfonate) with 1 mol of bilirubin. This yielded a water-soluble derivative in which both carboxyl groups of bilirubin were converted to reactive enol esters. Covalent labeling was achieved by reacting the label with human serum albumin under n...

Human serum albumin (HSA) has been used for a long time as a resuscitation fluid in critically ill patients. It is known to exert several important physiological and pharmacological functions. Among them, the antioxidant properties seem to be of paramount importance as they may be implied in the potential beneficial effects that have been observed in the critical care and hepatological settings...

Large fragments of human serum albumin were produced by treatment of the native protein with pepsin at pH3.5. Published sequences of human albumin [Behrens, Spiekerman & Brown (1975) Fed. Proc. Fed. Am. Soc. Exp. Biol. 34, 591; Meloun, Moravek & Kostka (1975) FEBSLett.58, 134-137]were used to locate the fragments in the primary structure. The fragments support both the sequence and proposed dis...

During antibiotic drug development, media are frequently spiked with either serum/plasma or protein supplements to evaluate the effect of protein binding. Usually, previously reported serum or plasma protein binding values are applied in the analysis. The aim of this study was to evaluate this approach by experimentally measuring free, unbound concentrations for antibiotics with reportedly high...

BACKGROUND Neutrophil-gelatinase associated lipocalin (NGAL), a tubular injury marker, is associated with iron metabolism in hemodialysis patients. We investigated whether serum NGAL levels reflect iron metabolism in combined chronic heart failure and chronic kidney disease (CHF/CKD) and whether treatment with low-dose erythropoietin stimulating agent (ESA) modulates NGAL levels. METHODS In t...