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The value of urinary steroid analysis in chorionic neoplasia
American Journal of Obstetrics and Gynecology
|March 15, 1977
Summary
Urinary neutral steroid profiles differentiate normal pregnancy from gestational trophoblastic diseases. Steroid excretion patterns, particularly fraction 2, are altered in hydatidiform mole, chorioadenoma destruens, and choriocarcinoma, aiding diagnosis.
Area of Science:
- Endocrinology
- Reproductive Biology
- Clinical Chemistry
Background:
- Urinary neutral steroid profiles offer insights into endocrine function.
- Gestational trophoblastic diseases (GTDs) represent abnormal pregnancy conditions with unique hormonal profiles.
Purpose of the Study:
- To investigate urinary neutral steroid profiles in normal pregnancy and various GTDs.
- To determine the diagnostic utility of specific steroid fractions and their ratios in differentiating these conditions.
Main Methods:
- Gas-liquid chromatography was employed to analyze urinary neutral steroids.
- Chromatograms were divided into three distinct metabolic fractions.
- Excretion levels of fraction 2 steroids and the ratio of fraction 2 to fraction 1 were quantified.
Main Results:
- Fraction 2 steroids, including menstruation-dependent steroids, were significantly increased in normal pregnancy compared to nonpregnant controls.
- Hydatidiform mole (HM) and chorioadenoma destruens (CA) showed reduced fraction 2 excretion compared to normal pregnancy.
- The ratio of fraction 2 to fraction 1 steroids effectively differentiated normal pregnancy, HM, and CA.
- Choriocarcinoma (CC) exhibited reduced excretion in both fraction 1 and fraction 2 steroids.
- A disrupted linear relationship between steroid ratios and pregnanediol excretion was observed in CA, correlating with high HCG levels.
Conclusions:
- Urinary neutral steroid profiles are altered in GTDs, reflecting changes in steroidogenesis.
- The ratio of fraction 2 to fraction 1 steroids is a valuable biomarker for distinguishing normal pregnancy from HM, CA, and CC.
- Abnormal human chorionic gonadotropin (HCG) from tumors may impair ovarian steroidogenesis, as suggested by altered steroid profiles in CA.
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