Microsatellite Repeats, Middle Aged, Multiple Endocrine Neoplasia Type 1/genetics, Mutation, Parathyroid Hormone/blood, ... Microsatellite Repeats; Middle Aged; Multiple Endocrine Neoplasia Type 1/genetics; Mutation; Parathyroid Hormone/blood; ... Using microsatellite analysis for loss of heterozygosity (LOH) at 11q13 and DNA sequencing of coding exons, the MEN1 gene was ... Using microsatellite analysis for loss of heterozygosity (LOH) at 11q13 and DNA sequencing of coding exons, the MEN1 gene was ...