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  • Title: Women with regular menstrual cycles and a poor response to ovarian hyperstimulation for in vitro fertilization exhibit follicular phase characteristics suggestive of ovarian aging.
    Author: Beckers NG, Macklon NS, Eijkemans MJ, Fauser BC.
    Journal: Fertil Steril; 2002 Aug; 78(2):291-7. PubMed ID: 12137865.
    Abstract:
    OBJECTIVE: To investigate whether follicular phase characteristics associated with ovarian aging can be observed in women of normal reproductive age, who had previously shown a poor response to ovarian hyperstimulation for IVF. DESIGN: Observational, prospective study. SETTING: Tertiary fertility center. PATIENT(S): Eleven regularly cycling, ovulatory women, aged 29-40 years who previously presented with fewer than four dominant follicles after ovarian hyperstimulation for IVF. INTERVENTION(S): Frequent serum hormone assessments and transvaginal ultrasound during the follicular phase of a spontaneous, unstimulated cycle. MAIN OUTCOME MEASURE(S): Duration of the follicular phase; serum LH, FSH, E(2), P, inhibin A, and inhibin B levels; and number of antral follicles observed by ultrasound. Results were compared with the cycle characteristics of a reference population of 38 healthy normo-ovulatory women aged 20-36 years (as published elsewhere). RESULT(S): Poor responders had significantly fewer antral follicles than controls. Median FSH concentrations were significantly higher compared with controls, but the majority had FSH levels within the normal range. Follicular phase P levels were significantly higher in poor responders. Duration of the follicular phase, E(2), and inhibin A and inhibin B serum levels did not differ between poor responders and controls. CONCLUSION(S): Normo-ovulatory regularly cycling women with a previous poor response to ovarian hyperstimulation for IVF show follicular phase characteristics suggestive of ovarian aging.
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