Biomaterial Database

Microheterogeneity of alpha 1-acid glycoprotein in the detection of intercurrent infection in patients with rheumatoid arthritis. 1989

T Pawlowski, and S H Mackiewicz, and A Mackiewicz

Department of Immunology and Rheumatology, K. Marcinkowski University School of Medicine, Poznan, Poland.

We evaluated the clinical usefulness of determinations of alpha 1-acid glycoprotein (AGP) microheterogeneity in distinguishing patients who have active rheumatoid arthritis (RA) from those who have RA and an intercurrent infection. AGP microheterogeneity was studied by affinity electrophoresis with concanavalin A as the ligand, and the results were expressed as reactivity coefficients (RC). Significant differences were found between the mean RC (+/- SD) in healthy individuals (1.27 +/- 0.16) and the mean RC in RA patients with intercurrent infection (1.74 +/- 0.90), as well as with the mean RC in RA patients with grades III and IV disease activity (0.92 +/- 0.18 and 0.81 +/- 0.25, respectively). Moreover, an additional microheterogeneous form of AGP, similar to that observed in non-RA patients with infections, was noted in RA patients with infections (sensitivity 100%, specificity 100%). The results show that an increase in AGP reactivity with concanavalin A is a sensitive indicator of intercurrent infection in patients with RA.

UI	MeSH Term	Description	Entries
D009961	Orosomucoid		Acid Seromucoid,Seromucoid,Serum Sialomucin,alpha 1-Acid Glycoprotein,alpha 1-Acid Seromucoid,A(1)-Acid Seromucoid,Acid alpha 1-Glycoprotein,Alpha(1)-Acid Glycoprotein,alpha 1-Acid Glycoprotein (Acute Phase),alpha 1-Glycoprotein Acid,Acid alpha 1 Glycoprotein,Glycoprotein, alpha 1-Acid,Seromucoid, Acid,Seromucoid, alpha 1-Acid,Sialomucin, Serum,alpha 1 Acid Glycoprotein,alpha 1 Acid Seromucoid,alpha 1 Glycoprotein Acid
D002097	C-Reactive Protein	A plasma protein that circulates in increased amounts during inflammation and after tissue damage. C-Reactive Protein measured by more sensitive methods often for coronary heart disease risk assessment is referred to as High Sensitivity C-Reactive Protein (hs-CRP).	High Sensitivity C-Reactive Protein,hs-CRP,hsCRP,C Reactive Protein,High Sensitivity C Reactive Protein
D003208	Concanavalin A	A MANNOSE/GLUCOSE binding lectin isolated from the jack bean (Canavalia ensiformis). It is a potent mitogen used to stimulate cell proliferation in lymphocytes, primarily T-lymphocyte, cultures.
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001172	Arthritis, Rheumatoid	A chronic systemic disease, primarily of the joints, marked by inflammatory changes in the synovial membranes and articular structures, widespread fibrinoid degeneration of the collagen fibers in mesenchymal tissues, and by atrophy and rarefaction of bony structures. Etiology is unknown, but autoimmune mechanisms have been implicated.	Rheumatoid Arthritis
D001424	Bacterial Infections	Infections by bacteria, general or unspecified.	Bacterial Disease,Bacterial Infection,Infection, Bacterial,Infections, Bacterial,Bacterial Diseases
D015180	Electrophoresis, Gel, Two-Dimensional	Electrophoresis in which a second perpendicular electrophoretic transport is performed on the separate components resulting from the first electrophoresis. This technique is usually performed on polyacrylamide gels.	Gel Electrophoresis, Two-Dimensional,Polyacrylamide Gel Electrophoresis, Two-Dimensional,2-D Gel Electrophoresis,2-D Polyacrylamide Gel Electrophoresis,2D Gel Electrophoresis,2D PAGE,2D Polyacrylamide Gel Electrophoresis,Electrophoresis, Gel, 2-D,Electrophoresis, Gel, 2D,Electrophoresis, Gel, Two Dimensional,Polyacrylamide Gel Electrophoresis, 2-D,Polyacrylamide Gel Electrophoresis, 2D,Two Dimensional Gel Electrophoresis,2 D Gel Electrophoresis,2 D Polyacrylamide Gel Electrophoresis,Electrophoresis, 2-D Gel,Electrophoresis, 2D Gel,Electrophoresis, Two-Dimensional Gel,Gel Electrophoresis, 2-D,Gel Electrophoresis, 2D,Gel Electrophoresis, Two Dimensional,PAGE, 2D,Polyacrylamide Gel Electrophoresis, 2 D,Polyacrylamide Gel Electrophoresis, Two Dimensional,Two-Dimensional Gel Electrophoresis