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  • Title: A study of luteal phase expression of inhibin, activin, and follistatin subunits in the endometrium of women with recurrent miscarriage.
    Author: Prakash A, Li TC, Tuckerman E, Laird S, Wells M, Ledger WL.
    Journal: Fertil Steril; 2006 Dec; 86(6):1723-30. PubMed ID: 17074342.
    Abstract:
    OBJECTIVE: To compare the luteal phase endometrial expression of inhibin, activin, and follistatin subunits in women with recurrent miscarriage compared to a control group. Other parameters of luteal function assessed included Doppler blood flow, serum biochemical markers, and histopathology. DESIGN: This was a prospective case control study. SETTING: The study was conducted in a tertiary care hospital of Sheffield, United Kingdom. PATIENT(S): Thirty-three women with recurrent miscarriage and 10 women with no previous history of miscarriage (control group) were recruited. INTERVENTION(S): Histologic assessment of the luteal phase endometrium was done using Noyes criteria followed by immunohistochemical analysis for expression of inhibin, activin, and follistatin subunits. Doppler analysis for perifollicular and endometrial blood flow was also done. Simultaneously serum concentrations of E(2), LH, FSH, P, and inhibin B at the time of LH surge and at LH +7 days were measured. MAIN OUTCOME MEASURES: Difference in endometrial expression of inhibin, activin, and follistatin subunit in the two groups. RESULT(S): Endometrial expression of follistatin and beta A in the endometrial stromal cells of women with recurrent miscarriage was significantly lower than in control women. There were no differences in results of the Doppler studies or the hormonal profiles between cases and controls. CONCLUSION(S): The lower expression of follistatin and beta A subunit in women with recurrent miscarriage may imply an altered activity of activin A at the time of decidualization, which may lead to poor pregnancy outcome in the form of miscarriage.
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