Excessive follicular recruitment and growth in mothers of spontaneous dizygotic twins

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Abstract

We wished to establish the frequency, regularity and laterality of multiple ovulation in mothers of dizygotic (DZ) twins and controls. Subjects had regular menses and were not using oral contraceptives. Ovarian ultrasound scans were taken over a number of cycles in 21 mothers of DZ twins and 18 controls (including 13 mothers of monozygotic [MZ] twins). Multiple large follicles ( ≥ 12 mm diameter) were seen significantly more frequently in mothers of DZ twins (13/21 mothers, 24/77 cycles, average ± SE follicles/cycle 1.34 ± 0.11) than controls (2/18 mothers, 3/31-cycles, average 1.10 ± 0.08). Both ipsilateral and contralateral multiple follicles were observed. In one case a mother of DZ twins showed multiple large follicles in 7 out of 10 cycles in which she was scanned, including both ipsi- and contralateral patterns of occurrence.

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CITATION STYLE

APA

Martin, N. G., Shanley, S., Butt, K., Osborne, J., & O’Brien, G. (1991). Excessive follicular recruitment and growth in mothers of spontaneous dizygotic twins. Acta Geneticae Medicae et Gemellologiae, 40(3–4), 291–301. https://doi.org/10.1017/s0001566000003470

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