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Clin Endocrinol (Oxf). 1990 Jan;32(1):25-32.

Gonadotrophin secretion in the second half of the menstrual cycle: a comparison of women with normal cycles, luteal phase defects and disturbed follicular development.

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  • 1Max-Planck-Institut für Psychiatrie, Division of Psychoneuroendocrinology, Munich, FR Germany.


In order to study the relationship between episodic gonadotrophin secretion and alterations of ovarian hormone secretion, we examined women with normal menstrual cycles (n = 26), luteal phase defects (n = 10) or disturbed follicular oestradiol secretion (n = 8) as established by daily (except weekends) determinations of oestradiol and progesterone. Pulsatile gonadotrophin secretion was studied during the luteal phase or the second half of the menstrual cycle sampling at 15 min intervals for 12 h. LH and FSH mean concentrations and LH pulse frequency were significantly (P less than 0.01) increased in the group with disturbed follicular development in the presence of decreased oestradiol (E2) and progesterone (P4) levels. In women with luteal phase defects mean LH and FSH concentrations and pulsatile LH secretion showed a nonsignificant trend to lower values in the presence of significantly decreased P4 concentrations during the luteal phase.

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