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Neuropsychological Features of Asymptomatic c.709-1G>A Progranulin Mutation Carriers*

Published online by Cambridge University Press:  16 November 2012

Myriam Barandiaran*
Affiliation:
Department of Neurology, Hospital Donostia, San Sebastián, Gipuzkoa, Spain Centro de Investigación en Red sobre Enfermedades Neurodegenerativas (CIBERNED, area 6), Gipuzkoa, Spain Neurogenetics Research Unit, Ilundain Fundazioa, Gipuzkoa, Spain
Ainara Estanga
Affiliation:
Centro de Investigación en Red sobre Enfermedades Neurodegenerativas (CIBERNED, area 6), Gipuzkoa, Spain Neurogenetics Research Unit, Ilundain Fundazioa, Gipuzkoa, Spain Neurociences Area, Institute Biodonostia, San Sebastián, Gipuzkoa, Spain
Fermín Moreno
Affiliation:
Department of Neurology, Hospital Donostia, San Sebastián, Gipuzkoa, Spain Centro de Investigación en Red sobre Enfermedades Neurodegenerativas (CIBERNED, area 6), Gipuzkoa, Spain Neurogenetics Research Unit, Ilundain Fundazioa, Gipuzkoa, Spain Neurociences Area, Institute Biodonostia, San Sebastián, Gipuzkoa, Spain
Begoña Indakoetxea
Affiliation:
Department of Neurology, Hospital Donostia, San Sebastián, Gipuzkoa, Spain Centro de Investigación en Red sobre Enfermedades Neurodegenerativas (CIBERNED, area 6), Gipuzkoa, Spain Neurogenetics Research Unit, Ilundain Fundazioa, Gipuzkoa, Spain Neurociences Area, Institute Biodonostia, San Sebastián, Gipuzkoa, Spain
Ainhoa Alzualde
Affiliation:
Centro de Investigación en Red sobre Enfermedades Neurodegenerativas (CIBERNED, area 6), Gipuzkoa, Spain Neurogenetics Research Unit, Ilundain Fundazioa, Gipuzkoa, Spain Neurociences Area, Institute Biodonostia, San Sebastián, Gipuzkoa, Spain
Nekane Balluerka
Affiliation:
Department of Social Psychology and Methodology of Behavioral Sciences, University of the Basque Country, San Sebastián, Spain
José Félix Martí Massó
Affiliation:
Department of Neurology, Hospital Donostia, San Sebastián, Gipuzkoa, Spain Centro de Investigación en Red sobre Enfermedades Neurodegenerativas (CIBERNED, area 6), Gipuzkoa, Spain Neurogenetics Research Unit, Ilundain Fundazioa, Gipuzkoa, Spain Neurociences Area, Institute Biodonostia, San Sebastián, Gipuzkoa, Spain
Adolfo López de Munain
Affiliation:
Department of Neurology, Hospital Donostia, San Sebastián, Gipuzkoa, Spain Centro de Investigación en Red sobre Enfermedades Neurodegenerativas (CIBERNED, area 6), Gipuzkoa, Spain Neurogenetics Research Unit, Ilundain Fundazioa, Gipuzkoa, Spain Neurociences Area, Institute Biodonostia, San Sebastián, Gipuzkoa, Spain
*
Correspondence and reprint requests to: Myriam Barandiaran, Department of Neurology, Hospital Donostia, Paseo Dr Begiristain sn, CP 20014, San Sebastian, Gipuzkoa, Spain. E-mail: [email protected]

Abstract

Mutations in the progranulin (PGRN) gene have been identified as a cause of frontotemporal dementia (FTD). However, little is known about the neuropsychological abilities of asymptomatic carriers of these mutations. The aim of the study was to assess cognitive functioning in asymptomatic c.709-1G>A PGRN mutation carriers. We hypothesized that poorer neuropsychological performance could be present before the development of clinically significant FTD symptoms. Thirty-two asymptomatic first-degree relatives of FTD patients carrying the c.709-1G>A mutation served as study participants, including 13 PGRN mutation carriers (A-PGRN+) and 19 non-carriers (PGRN-). A neuropsychological battery was administered. We found that the A-PGRN+ participants obtained significantly poorer scores than PGRN- individuals on tests of attention (Trail-Making Test Part A), mental flexibility (Trail-Making Test Part B), and language (Boston Naming Test). Poorer performance on these tests in asymptomatic PGRN mutation carriers may reflect a prodromal phase preceding the onset of clinically significant symptoms of FTD. (JINS, 2012, 18, 1086–1090)

Type
Brief Communication
Copyright
Copyright © The International Neuropsychological Society 2012

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Footnotes

*

Authors’ Disclosure and Study Funding: This work was supported by Diputación Foral de Gipuzkoa (dossier 76/08) and the Basque Government (SAIOTEK program). Dr. López de Munain is a PhD with funding from the Instituto de Salud Carlos III. Authors report no disclosures.

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