Patients with familial biparental hydatidiform moles have normal methylation at imprinted genes.

Abstract excerpt

In molar tissues from patients with recurrent biparental hydatidiform moles, we could previously demonstrate that differentially methylated regions (DMRs) of four imprinted genes are abnormally methylated on the maternal alleles. It remained unclear if this abnormal methylation originated de novo in the molar tissues or if it is even recognizable in the patient somatic tissues. To address this question, we...

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