Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/102837
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dc.contributor.authorHughes, J.en
dc.contributor.authorAubert, M.en
dc.contributor.authorHeatlie, J.en
dc.contributor.authorGardner, A.en
dc.contributor.authorGecz, J.en
dc.contributor.authorMorgan, T.en
dc.contributor.authorBelsky, J.en
dc.contributor.authorThomas, P.en
dc.date.issued2016en
dc.identifier.citationClinical Endocrinology, 2016; 85(4):609-615en
dc.identifier.issn0300-0664en
dc.identifier.issn1365-2265en
dc.identifier.urihttp://hdl.handle.net/2440/102837-
dc.description.abstractIGSF1 deficiency syndrome (IDS) is a recently described X-linked congenital central hypothyroidism disorder characterized by loss-of-function mutations in the immunoglobulin superfamily member 1 (IGSF1) gene. The phenotypic spectrum and intrafamilial variability associated with IDS remain unclear due to a paucity of large, well-characterized pedigrees. Here, we present phenotypic analysis and molecular characterization of a five-generation pedigree with IGSF1 deficiency containing 10 affected males.Pituitary function was assessed in all available family members (n = 8 affected males and n = 5 carrier females). Molecular characterization of the family was performed by Sanger sequencing of PCR products amplified from the IGSF1 locus and by array comparative genomic hybridization.A 42-kb IGSF1 deletion spanning the entire coding sequence was identified in all affected males. TSH deficiency, although subclinical in one case, was identified in all affected males (n = 8). PRL and GH deficiency were also present in 5 of 6 and 4 of 8 affected males, respectively. In contrast to previous reports, macroorchidism was not detected in any of the four affected males who were examined for this feature. Only 1 of 5 carrier females had pituitary dysfunction (TSH and GH deficiency).Individuals with identical IGSF1 deletions can exhibit variable pituitary hormone deficiencies, of which overt TSH deficiency is the most consistent feature. We also show that macroorchidism is not obligatory in males with IDS. Mutations of IGSF1 should therefore be considered in males with isolated hypopituitarism that includes TSH deficiency.en
dc.description.statementofresponsibilityJames N. Hughes, Matthew Aubert, Jessica Heatlie, Alison Gardner, Jozef Gecz, Thomas Morgan, Joseph Belsky and Paul Q. Thomasen
dc.language.isoenen
dc.publisherWiley-Blackwellen
dc.rights© 2016 John Wiley & Sons Ltd.en
dc.subjectHumans; Hypopituitarism; Genetic Diseases, X-Linked; Immunoglobulins; Membrane Proteins; Pedigree; Sequence Deletion; Mutation; Congenital Hypothyroidism; Female; Male; Comparative Genomic Hybridizationen
dc.titleIdentification of an IGSF1-specific deletion in a five-generation pedigree with X-linked Central Hypothyroidism without macroorchidismen
dc.typeJournal articleen
dc.identifier.rmid0030047232en
dc.identifier.doi10.1111/cen.13094en
dc.identifier.pubid247924-
pubs.library.collectionMedicine publicationsen
pubs.library.teamDS10en
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
dc.identifier.orcidAubert, M. [0000-0003-2539-6980]en
dc.identifier.orcidGecz, J. [0000-0002-7884-6861]en
Appears in Collections:Medicine publications

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