We investigated the ability of an FcIgG receptor marker to discriminate between subtypes of malignant lymphoproliferative diseases that differed in their clinical presentations. A quantitative radioimmuno assay was established that enabled us to evaluate average receptor densities on a population basis. Surface receptors were first saturated with IgG complexes. The number of membrane associated...

During one decade, an increasing percentage of world population has to be attributed array environmental, health and lifestyle factors. The potential effect extremely low frequency electromagnetic fields (ELF-EMFs) emitted from electrical various devices in the occupational environment light at night (LAN) elicit biological response are a major concern for public scientists. Controversial genet...

(1) Brief introduction to iron metabolism and the biochemistry of ferritin. (2) Early studies of circulating ferritin. (3) Methods for measuring serum ferritin concentrations -- immunoradiometric, radioimmuno- and enzyme-linked immuno assays based on liver or spleen ferritin -- an evaluation of these techniques. (4) Serum ferritin concentrations in normal subjects -- definition of normality -- ...

OBJECTIVE The aim of the study was to evaluate the influence of human anti-mouse antibodies on the measurement of thyrotropin. INVESTIGATIONS Samples from 11 patients with measureable human anti-mouse antibody titres (19 micrograms/l-3880 micrograms/l) after radioimmuno-scintigraphy were analysed with 6 different thyrotropin immuno-radiometric assay kits (IRMA). Each sample was analysed in th...

1043 have been due to direct trauma or haematoma around an aberrantly coursing hypoglossal nerve, we still consider high puncture of the internal jugular vein to be a useful approach. Immunity induced by rubella vaccines must persist throughout the childbearing years, a period of about 30 years. We have reported persistence of rubella antibody at values exceeding 15 000 IU/l in 89 4% of volunte...

A technique is described which couples High Performance Liquid Chromatography (HPLC) to radioimmuno assays (RIA) , thus achieving high sensitivity with good specificity. This method allows the separation and detection of multiple forms of immunoreactive peptides. Using this procedure, we have characterized the B-E-like immunoreactivity in rat pituitary. It had been previously reported that most...

an agar well diffusion bioassay method for determination of clarithromycin in human plasma, using micrococcus luteus atcc 9341 as the assay organism, was compared with a selective high-performance liquid chromatographic (hplc) method with uv detection. spiked plasma was used to prepare standard and control samples for both methods. the results of the bioassay analyses with spiked plasma samples...