Phosphoglucomutase genetic polymorphism and human fertility.

We studied the phosphoglucomutase phenotype in relation to fertility parameters in a consecutive series of 204 women who had delivered a normal live-born child in Rome. A highly significant association was found between age of the women and phosphoglucomutase phenotype, suggesting a reduced rate of reproduction among women of phosphoglucomutase Type 1. Previous spontaneous abortion appears related to both age and phosphoglucomutase enzymatic type. An increased incidence of abortion in women of older ages was observed only in phosphoglucomutase Type 1. Gestational duration and fetal intrauterine growth rate are also significantly associated with maternal phosphoglucomutase phenotype. The pattern is complex, but also in this instance the influence of maternal age was evident. Considered altogether, the data suggest that phosphoglucomutase may have an important role in zygote development and survival through the whole span of intrauterine life.

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