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Clinical Chemistry 31: 397-401, 1985;
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Clinical Chemistry, Vol 31, 397-401, Copyright © 1985 by American Association for Clinical Chemistry

Particle-counting immunoassay (PACIA) of pregnancy-specific beta 1- glycoprotein, a possible marker of various malignancies and Crohn's ileitis

OC Fagnart, JC Mareschal, CL Cambiaso and PL Masson

Pregnancy-specific beta 1-glycoprotein (SP1) was assayed by particle- counting immunoassay (PACIA) with a sensitivity of 1 microgram/L. In serum from 50 men, the SP1 concentration was less than 1 microgram/L, whereas three of the specimens from 46 nonpregnant women had values exceeding 1 microgram/L. In 29% of 950 consecutive patients' sera, SP1 concentrations exceeded 1 microgram/L--in sarcoma (six of six), in malignant hemopathies (101/127, 80%) such as myeloma (20/26, 92%) and acute myeloblastic leukemia (23/27, 90%), and in various other types of cancer (11/19, 58%) except for bronchial epithelioma, which did not lead to any significant increase of SP1 in the five patients examined. The concentration of SP1 was also frequently increased in patients with Crohn's ileitis (28/43, 65%) but not in patients with other inflammatory disorders.




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Copyright © 1985 by the American Association for Clinical Chemistry.