Troponin, a new myocardial infarction marker] |
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Authors: | JP Chapelle |
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Affiliation: | Institute for Research in Reproduction (ICMR), Mumbai, India. |
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Abstract: | PURPOSE: Early pregnancy factor (EPF)-like activity from culture supernatants obtained from stimulated lymphocytes of pregnant women was characterized and identified. METHODS: The enzyme-linked immunosorbent assay depending on the presence of "Fc" receptors on bovine spermatozoa was used to identify the EPF-like molecule purified by gel filtration and reverse-phase high-performance liquid chromatography. RESULTS: The results indicated that the crude lymphocyte culture supernatant, the EPF-positive G IV fraction obtained on gel filtration, and the EPF-positive reverse-phase high-performance liquid chromatography protein readily bound with the different concentrations of aggregated human gamma-globulin in a manner similar to that in which the standard control of aggregated human gamma-globulin binds to the bovine spermatozoa. CONCLUSIONS: EPF-like activity synthesized and secreted by lymphocytes during pregnancy may be a Fc-receptor-like molecule. |
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