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Enzyme-linked immunosorbent assay and radioimmunoassay of serum pepsinogen A

Abstract

The determination of serum pepsinogen A (=pepsinogen I) levels is of clinical importance in the study of duodenal ulcer, atrophic gastritis and gastric cancer. In the present study two different quantitative immunological techniques for serum pepsinogen A were compared: a radioimmunoassay (RIA) (Helsinki) and an enzyme-linked immunosorbent assay (ELISA) (Amsterdam). Serum samples of 177 subjects with various gastric diseases were tested in a double blind study. The correlation was excellent (r=0.954 in the range 0-760 ..mu..g/l and r=0.971 in the range 0-100 ..mu..g/l). The functional relationship between ELISA (x) and RIA (y), determined by weighted model II regression, was y=1.12x-0.54. Initially the use of goat anti-PGA in the ELISA resulted in falsely high values in about 10% of the individuals. This was caused by circulating antibodies cross-reacting with goat IgG. This artefact was eliminated by pre-incubation of all samples with non-immune goat serum.
Publication Date:
Feb 01, 1987
Product Type:
Journal Article
Reference Number:
GBN-87-002401; EDB-88-011431
Resource Relation:
Journal Name: Scand. J. Clin. Lab. Invest.; (United Kingdom); Journal Volume: 47:1
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE; PEPSIN; BLOOD CHEMISTRY; RADIOIMMUNOASSAY; STOMACH; DISEASES; COMPARATIVE EVALUATIONS; ENZYME IMMUNOASSAY; PRECURSOR; ACID PROTEINASES; BODY; DIGESTIVE SYSTEM; ENZYMES; GASTROINTESTINAL TRACT; HYDROLASES; IMMUNOASSAY; IMMUNOLOGY; ISOTOPE APPLICATIONS; ORGANS; PEPTIDE HYDROLASES; RADIOASSAY; RADIOIMMUNOLOGY; TRACER TECHNIQUES; 550601* - Medicine- Unsealed Radionuclides in Diagnostics
OSTI ID:
5931998
Research Organizations:
Vrije Univ., Amsterdam, Netherlands; Medica Oy/AB, Helsinki, Finland
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: SJCLA
Submitting Site:
GBN
Size:
Pages: 29-33
Announcement Date:
Dec 01, 1987

Citation Formats

Pals, G, Meuwissen, S G.M., Frants, R R, Kostense, P J, Eriksson, A W, and Raesaenen, V. Enzyme-linked immunosorbent assay and radioimmunoassay of serum pepsinogen A. United Kingdom: N. p., 1987. Web.
Pals, G, Meuwissen, S G.M., Frants, R R, Kostense, P J, Eriksson, A W, & Raesaenen, V. Enzyme-linked immunosorbent assay and radioimmunoassay of serum pepsinogen A. United Kingdom.
Pals, G, Meuwissen, S G.M., Frants, R R, Kostense, P J, Eriksson, A W, and Raesaenen, V. 1987. "Enzyme-linked immunosorbent assay and radioimmunoassay of serum pepsinogen A." United Kingdom.
@misc{etde_5931998,
title = {Enzyme-linked immunosorbent assay and radioimmunoassay of serum pepsinogen A}
author = {Pals, G, Meuwissen, S G.M., Frants, R R, Kostense, P J, Eriksson, A W, and Raesaenen, V}
abstractNote = {The determination of serum pepsinogen A (=pepsinogen I) levels is of clinical importance in the study of duodenal ulcer, atrophic gastritis and gastric cancer. In the present study two different quantitative immunological techniques for serum pepsinogen A were compared: a radioimmunoassay (RIA) (Helsinki) and an enzyme-linked immunosorbent assay (ELISA) (Amsterdam). Serum samples of 177 subjects with various gastric diseases were tested in a double blind study. The correlation was excellent (r=0.954 in the range 0-760 ..mu..g/l and r=0.971 in the range 0-100 ..mu..g/l). The functional relationship between ELISA (x) and RIA (y), determined by weighted model II regression, was y=1.12x-0.54. Initially the use of goat anti-PGA in the ELISA resulted in falsely high values in about 10% of the individuals. This was caused by circulating antibodies cross-reacting with goat IgG. This artefact was eliminated by pre-incubation of all samples with non-immune goat serum.}
journal = []
volume = {47:1}
journal type = {AC}
place = {United Kingdom}
year = {1987}
month = {Feb}
}