Isolation and characterization of early pregnancy factor.

X. Zuo, B. Su, D. Wei

Research output: Contribution to journalArticlepeer-review

Abstract

Early pregnancy factor (EPF) was purified from the pooled sera of 210 pregnant women at 3-8 weeks of gestation. Sera from healthy nonpregnant women were used as control. The samples (G-II, G-III and G-IV) obtained from pregnant women had EPF activity but no HCG activity. Polyacrylamide gel electrophoresis showed that the major bands in pregnant G-III and G-IV were at similar positions in tube gels. The results of SDS-PAGE showed 3 bands in pregnant G-IV: 57.0 kD, 38.0 kD and 19.0 kD. The basic active form of EPF may be a small peptide of 19.0 kD. The isoelectric points of pregnant G-IV were 6.45 and 8.20.

Original languageEnglish (US)
Pages (from-to)34-37
Number of pages4
JournalChinese medical sciences journal = Chung-kuo i hsüeh k'o hsüeh tsa chih / Chinese Academy of Medical Sciences
Volume9
Issue number1
StatePublished - Mar 1994
Externally publishedYes

ASJC Scopus subject areas

  • General Medicine

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