Browsing by Author "Riffo, R"

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    Twenty-four-hour pattern of cortisol in the human fetus at term
    (2001) Serón-Ferré, M; Riffo, R; Valenzuela, GJ; Germain, AM
    OBJECTIVES: Indirect evidence suggests that adrenal steroid production in the human fetus may have a circadian rhythm. To assess whether there is a 24-hour rhythm of fetal cortisol in the human fetus, we investigated the relationship between fetal and maternal cortisol and cortisone concentrations in maternal, umbilical arterial, and umbilical venous blood samples over a 24-hour period.