Author:
Isailovic Tatjana,Milicevic Ivana,Macut Djuro,Petakov Milan,Ognjanovic Sanja,Popovic Bojana,Antic Ivana Bozic,Bogavac Tamara,Kovacevic Valentina Elezovic,Ilic Dusan,Damjanovic Svetozar
Abstract
Summary
Background: Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant cancer syndrome characterized by the occurrence of primary hyperparathyroidism (PHPT), pituitary adenoma (PA) and pancreatic neuroendocrine tumor (pNET). Whether the underlying mutations in MEN1 gene predict clinical presentation of affected heterozygotes or not, is still a matter of a debate.
Methods: Clinical and genetic analysis of 90 consecutive MEN1 patients was performed in a retrospective, single – center study.
Results: MEN1 mutation was found in 67 (74.4%) patients belonging to 31 different families. Twenty nine different heteozygous mutations were found, including 6 novel point mutations (W220G, 941delG, 1088del7, 1184insA, 1473del10, 1602del17) and one large deletion of exon 8. Truncating mutations predicted development of pNETs (OR=5.8, 95% CI 1.7 – 19.7%) and PHPT (OR=4.3, 95% CI 1.5 – 12.4%).
Conclusions: Large number of novel mutations among MEN1 patients confirmed previously reported data. PNETs and PHPT were more frequent in patients with truncating mutations.
Publisher
Centre for Evaluation in Education and Science (CEON/CEES)
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