Contraception · 2007
The oral contraceptive containing 30 microg of ethinylestradiol plus 3 mg of drospirenone is able to antagonize the increase of extracellular water occurring in healthy young women during the luteal phase of the menstrual cycle: an observational study.
Клиническое исследованиеСтатьяМногоцентровое исследованиеПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Fruzzetti Franca, Lello Stefano, Lazzarini Veronica, Fratta Stefania, Orrù Marisa, Sorge Roberto, Minerba Luigi, Ricci Cabiria, Genazzani Andrea Riccardo, Melis Gian Benedetto, Paoletti Anna Maria
Аннотация
PURPOSE: This nonrandomized study aimed to evaluate body weight and composition during the menstrual cycle and during oral contraception with 30 microg of ethinylestradiol plus 3 mg of drospirenone (EE+DRSP).
DESIGN: Multifrequency bioelectrical impedance analysis was carried out in 38 normally cycling women (mean age, 25.5 years) at baseline during the follicular phase (FP) and the luteal phase (LP) of the menstrual cycle and after three and six cycles of EE+DRSP to evaluate total body water (TBW), intracellular water (ICW), extracellular water (ECW), fat mass and fat-free mass. Body weight, waist-to-hip ratio, blood pressure and the plasma concentrations of electrolytes were also determined at each visit.
RESULTS: TBW and ECW increased in the LP. During EE+DRSP, TBW and ECW were significantly lower than in the LP but similar to the values measured in the FP. No significant variations in ICW or in the other parameters were observed.
CONCLUSION: EE+DRSP maintains the same concentrations in TBW and ECW observed in the FP. This effect is likely due to the antimineralocorticoid activity of DRSP, which counteracts the water retention elicited by estrogen.
DESIGN: Multifrequency bioelectrical impedance analysis was carried out in 38 normally cycling women (mean age, 25.5 years) at baseline during the follicular phase (FP) and the luteal phase (LP) of the menstrual cycle and after three and six cycles of EE+DRSP to evaluate total body water (TBW), intracellular water (ICW), extracellular water (ECW), fat mass and fat-free mass. Body weight, waist-to-hip ratio, blood pressure and the plasma concentrations of electrolytes were also determined at each visit.
RESULTS: TBW and ECW increased in the LP. During EE+DRSP, TBW and ECW were significantly lower than in the LP but similar to the values measured in the FP. No significant variations in ICW or in the other parameters were observed.
CONCLUSION: EE+DRSP maintains the same concentrations in TBW and ECW observed in the FP. This effect is likely due to the antimineralocorticoid activity of DRSP, which counteracts the water retention elicited by estrogen.