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Correlation between serum prolactin secretion patterns and the ability of fertilization and cleavage of human oocyte (effects of transient hyperprolactinemia on fertilization and cleavage of human oocyte)



Correlation between serum prolactin secretion patterns and the ability of fertilization and cleavage of human oocyte (effects of transient hyperprolactinemia on fertilization and cleavage of human oocyte)



Nihon Sanka Fujinka Gakkai Zasshi 37(10): 2097-2106



To assess the effect of serum prolactin (PRL) on the fertilization and cleavage of oocytes, its secretion patterns in normoprolactinemic women (28 cases, 35 cycles) who had undergone IVF-ET because of bilateral tubal occlusion and/or severe oligospermia, and the relationship between its levels and the fertilization and cleavage rate were studied. Three serum PRL secretion patterns were observed. In the TIP-O (Transient Increase in serum PRL in the Ovulatory phase) group (7 cycles), the serum PRL was significantly increased in the ovulatory phase compared with the follicular phase. In the TIP-OL (TIP at the Ovulatory and mid-Luteal phase) group (11 cycle), it was significantly increased in both the ovulatory and the mid-Luteal phases, but in the NON-TIP group (17 cycles) there was no significant increase in any phase. The fertilization rate of the TIP-OL group (60.0%) was lower than that of the NON-TIP Group (89.5%) and the TIP-O group (87.5%). The cleavage rate of the TIP-O group (50.0%) was rather lower, and that of TIP-OL group (30.0%) was significantly (p less than 0.05) lower than that of the NON-TIP group (78.9%). These results suggest that transient increase in serum PRL may suppress the ability of fertilization and cleavage of human oocytes.

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Accession: 005059595

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PMID: 4078410


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