title: Importance of the DHEA-sulphate-test in pregnancy.
abstract: The DHEA-sulphate was applied in the 34th-41st weeks of pregnancy for the estimation of placental function (foetoplacental unit) in normal and pathological pregnancies. It has been established that: the peak of oestrogen excretion is in the dawn hours; the diurnal rhythm of E1 + E2 + E3 excretion is identical; the DHEA-SO4----oestrogen conversion takes place immediately, and within the subsequent 8-10 hours the urinary oestrogen values return to the original level; in physiological pregnancies between the 34th-36th weeks the DHEA-sulphate test indicated normal function in 91% of the cases; in the 37th-41st weeks of apparently normal pregnancies the test showed pathological placental function in 50% of the cases; in pathological pregnancies between the 37th-41st weeks the test in 77% of the cases predicted placental dysfunction.
authors.forename: Z
authors.initials: Z
authors.lastname: Bazsa-Kassai
authors.forename: I
authors.initials: I
authors.lastname: Takács
authors.forename: T
authors.initials: T
authors.lastname: Körösi
mesh_terms: D002940:Circadian Rhythm; D019411:Clinical Laboratory Techniques; D003404:Creatinine / Q000652:urine; D003687:Dehydroepiandrosterone / Q000031:analogs & derivatives*; D019314:Dehydroepiandrosterone Sulfate; D004967:Estrogens / Q000652:urine*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis*; D011263:Pregnancy Trimester, Third
chemical_list: D004967:Estrogens; D003687:Dehydroepiandrosterone; D019314:Dehydroepiandrosterone Sulfate; D003404:Creatinine