Serum Immunoreactive Relaxin Concentrations in Human Pregnancy, Labor and the Puerperium
Relaxin is a peptide hormone of pregnancy which plays a role in pregnancy maintenance and parturition in several mammalian species (1). Immunoassayable relaxin is present in women during pregnancy. Relaxin is produced solely by the human corpus luteum of pregnancy. The placenta does not directly contribute to its production (2). Relaxin extracted from the human corpus luteum of pregnancy is active in the guinea pig pubic symphysis palpation assay. The biological activity paralleled the immunoactivity of these extracts (3). The purpose of this study is to determine secretion patterns of relaxin at various times during normal pregnancies.
KeywordsCerebral Palsy Early Pregnancy Corpus Luteum Granulosa Cell Tumor Basal Body Temperature
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