Fucosylated glycans play a critical role in cell biology processes during the occurrence and development of tumor, such as cell signal transduction, cellular differentiation, ligand-receptor interactions, and metastasis formation. Fucosylated haptoglobin (Hp) was reported to be increased in hepatocellular carcinoma (HCC). In this study, we aimed to develop a convenient and sensitive AAL@Magbead...

The demonstration by Polonovski, Jayle, Boussier and Badin (1, 2) that certain plasma proteins have the property of binding extracorpuscular hemoglobin has led to recent re-evaluation of the mechanisms of renal transport of hemoglobin in the dog (3) and in man (4). Lathem (4) showed that circulating extracorpuscular hemoglobin is bound quantitatively to the a2-globulin, haptoglobin. By utilizin...

A cloned line of mouse hepatoma cells (Hepa-1) responded to treatment with dexamethasone by a 30-80-fold increase in synthesis and secretion of functional haptoglobin. Under the same conditions, the production of albumin was only slightly elevated whereas that of alpha 1-fetoprotein was reduced by 50%. The hormone concentration for half-maximal stimulation of haptoglobin synthesis was between 1...

The body's early defence in response to trauma, inflammation or infection, the acute phase response, is a complex set of systemic reactions seen shortly after exposure to a triggering event. One of the many components is an acute phase protein response in which increased hepatic synthesis leads to increased serum concentration of positive acute phase proteins. The serum concentration of these a...

Haptoglobin is an a2 plasma glycoprotein that forms a stable complex with hemoglobin (1-5). The complex is cleared from the plasma much more rapidly than free haptoglobin so that marked hypoor anhaptoglobinemia is a concomitant of hemolysis (6, 7). Since free hemoglobin passes readily into the urine, whereas the complex, perhaps owing to its much greater size, does not, haptoglobin may play a r...

Haptoglobin (Hp) is a haemoglobin-binding acute phase protein with three genetic types: Hp 1-1, Hp 2-1, Hp 2-2. We investigated 45 patients during the first 48 hours of acute myocardial infarction, and studied determinant factors and clinical correlates. Upon hospital admission, serum haptoglobin concentration was increased (1.95 +/- 0.94 g/l, mean +/- SD, P < 0.001) versus the reference popula...

This study describes a novel fabrication method of a multi-pad paper plate (MP) for transfer and optimisation of enzyme-linked immunosorbent assays (ELISA) on paper. The plate was fabricated using a combination of laser cutting and lamination for rapid and low-cost production of a multi-pad paper plate compatible with a standard 96 well microplate format. The plate was used to transfer a sandwi...

Haptoglobin serves as an antioxidant by virtue of its ability to prevent hemoglobindriven oxidative tissue damage. It was recently demonstrated that an allelic polymorphism in the haptoglobin gene is predictive of the risk for numerous microvascular and macrovascular diabetic complications. Because these complications are attributed in large part to an increase in oxidative stress, a study was ...

Serum haptoglobin has been estimated quantitatively in 25 patients with haemolytic disease, and its diagnostic value assessed by comparing the levels with those obtained in 110normal subjects, in 149 patients with other forms of anaemia, and in 37 patients with non-haematological disorders. The normal range was found to be 33 to 213 mg./100 ml.; subnormal levels were found in 80% of patients wi...

Haptoglobin (Hp) levels were investigated in relation to host genotype in a malaria-endemic area in Gabon. A cross-sectional study of 1-12-year-old children was conducted in the rainy season, a period of high malaria transmission, to examine this relationship. Variables that influenced Hp levels were Hp genotype, location, and age interacting with parasite density. At low parasite densities, th...