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Homeostatic regulation of free retinol-binding protein and free thyroxine pools of plasma by their plasma carrier proteins in chicken

open access: yesBiochimica Et Biophysica Acta - General Subjects, 1979
The mechanism underlying homeostatic regulation of the plasma levels of free retinol-binding protein and free thyroxine, the systemic distribution of which is of great importance, has been investigated. A simple method has been developed to determine the
H R Cama
exaly   +2 more sources
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PLASMA RETINOL‐BINDING PROTEIN*

Annals of the New York Academy of Sciences, 1980
Vitamin A is mobilized from liver stores and transported in plasma in the form of the lipid alcohol retinol, bound to a specific transport protein, retinol-binding protein (RBP). A great deal is known about the chemical structure, metabolism, and biological roles of RBP. RBP is a single polypeptide chain with molecular weight close to 20,000.
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Fluorescence studies of human plasma retinol-binding protein and of the retinol-binding protein-prealbumin complex

Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 1972
Abstract Fluorescence excitation and emission spectra were recorded for human plasma retinol-binding protein and for the complex of retinol-binding protein and prealbumin. The spectra were compared with the fluorescence spectra of retinol in solution in seven different organic solvents.
D S, Goodman, R B, Leslie
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Retinol‐Binding Protein and Prealbumin

Journal of Pediatric Gastroenterology and Nutrition, 1986
SummaryPlasma prealbumin (PA) and retinol‐binding protein (RBP) concentrations were serially measured in 25 critically ill, malnourished infants requiring parenteral nutrition to determine if these visceral protein markers are useful in assessing acute protein repletion. Significant increases in both proteins (p > 0.05) were noted as early as 5 to 7
Richard A. Helms   +4 more
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Identification and quantitation of intracellular retinol and retinoic acid binding proteins in cultured cells [PDF]

open access: yesBiochimica Et Biophysica Acta - Molecular Cell Research, 1984
Although the mechanism whereby vitamin A mediates normal cell differentiation and inhibits tumor cell proliferation is unknown, intracellular receptor-like proteins for retinol and retinoic acid have been implicated in the molecular action of vitamin A ...
Mark R Häussler   +2 more
exaly   +1 more source

The transthyretin-retinol-binding protein complex

Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology, 2000
Transthyretin (TTR, formerly called prealbumin), one of the transporters of the hormone thyroxine and the lipocalin retinol-binding protein (RBP), the specific carrier of the vitamin, are known to form, under physiological conditions, a macromolecular complex that is believed to play an important physiological role: prevention of glomerular filtration ...
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The retinol-binding protein.

Scandinavian journal of clinical and laboratory investigation. Supplementum, 1981
Vitamin A is transported from its storage site in the liver to the epithelial tissues by a carrier protein, the Retinol-binding protein (RBP). In plasma RBP forms a complex with thyroxine-binding prealbumin. The present article reviews available data on the RBP system. The complete primary structure of RBP has been determined.
L, Rask   +8 more
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Retinol Binding Protein

1995
Retinol binding protein is a single chain polypeptide of 21 000 Da without associated carbohydrate. It is the sole transport protein for vitamin A, and exists in the serum as an equimolar complex with prealbumin (trans-thyretin). Free retinol binding protein is rapidly excreted by the kidney, the function of the prealbumin-RBP complex appearing to be a
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Characterization of retinol-binding protein in familial hypo-retinol-binding proteinemia.

Japanese journal of ophthalmology, 1989
We reported previously familial hypo-retinol-binding proteinemia in a child who developed keratomalacia during measles infection. In the present study, we characterized serum retinol-binding proteins (RBPs) in the affected family members and compared these RBPs with those in the unaffected family members. Immunoblotting following SDS-polyacrylamide gel
T, Matsuo, N, Matsuo
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Study of retinol-binding protein in pancreatic cancer

Journal of Cancer Research and Clinical Oncology, 1984
Serum RBP, prealbumin, and zinc were evaluated in normal subjects and patients with pancreatic cancer and chronic pancreatitis. A significant decrease of RPB was found in pancreatic cancer patients compared with controls. A concomitant reduction of prealbumin and zinc was also observed.
FABRIS C.   +8 more
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