Pregnancy-Induced Perturbation of Urinary Androgenic Steroid Disposition
| Autor: | Emma Eklund, Anders Rane, Lena Ekström, Yifat Gadot, John-Olof Thörngren |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
medicine.medical_specialty
medicine.drug_class Endocrinology Diabetes and Metabolism Dehydroepiandrosterone 030204 cardiovascular system & hematology 030226 pharmacology & pharmacy Excretion 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Reproductive Biology and Sex-Based Medicine Internal medicine epitestosterone medicine Clinical Research Articles Pregnancy Androsterone Etiocholanolone business.industry Epitestosterone glucuronidation androgens medicine.disease Androgen Endocrinology chemistry Dihydrotestosterone sulfoconjugation testosterone pregnancy business medicine.drug |
| Zdroj: | Journal of the Endocrine Society |
| ISSN: | 2472-1972 |
| Popis: | Objective To investigate the excretion and conjugation profile of testosterone (T), Epitestosterone (EpiT), and other androgen metabolites in different phases of pregnancy and postpregnancy as a reflection of the “androgenic exposure.” Design Consecutive recruitment of pregnant women. Setting Maternity outpatient low-risk pregnancy clinic. Patients Seventy-seven pregnant women. Interventions Collection of urine for analyses of sulfate (S) and glucuronide (G) conjugates and metabolic ratios of androgens and androgen metabolites using liquid chromatography-tandem mass spectrometry. Main Outcome Measures Excretion profiles and metabolic ratios of G and S conjugates of T, EpiT, dehydroepiandrosterone (DHEA), androsterone (A), etiocholanolone (Etio), and dihydrotestosterone in relation to trimester and postpartum, body mass index, fetal sex, and ethnicity. Results T-S excretion increased significantly between the second and third trimester, whereas excretion of T-G did not change. In contrast, both conjugates of EpiT increased markedly, more so for the S-(17-fold) than the G-conjugate (1.6-fold). The preference for S over G conjugation was conspicuous for EpiT and DHEA (S/G ratio 2.1 and 4.7, respectively, in the third trimester), whereas the reverse was true for T, A, and Etio (S/G 0.6, 0.13, and 0.11, respectively). Conclusions Pregnancy influences the androgen excretion profile, with the most profound change being an increase in EpiT excretion throughout the trimesters. EpiT may modulate the effect of T, but its exact role during pregnancy is not known. There were marked differences in the S/G conjugate ratios between androgens upstream and downstream from T in the metabolic network. These results are interesting to compare with the androgen disposition in women with endocrine disorders or abuse of steroids. The urinary excretion rate and pattern of conjugated androgens vary widely in pregnancy among women, androgens, and trimesters and may reflect the androgenic “exposure” to the feto-maternal unit. |
| Databáze: | OpenAIRE |
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