Context: The molecular pathogenesis of sporadic parathyroid adenomas is incompletely understood, with alterations in cyclin D1/PRAD1 and MEN1 most firmly established as genetic drivers. The gene encoding the X-linked zinc finger protein ( ZFX ) has recently been implicated in the pathogenesis of a subset of parathyroid adenomas after recurrent, hotspot-focused somatic mutations were identified. ZFX escapes X inactivation and is transcribed from both alleles in women, and a highly homologous gene encoding the Y-linked zinc finger protein ( ZFY ) provides dosage compensation in males.
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