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Arch Neurol. 2007 Aug;64(8):1148-53.

Clinical, genetic, and pathologic characteristics of patients with frontotemporal dementia and progranulin mutations.

Author information

1
Department of Pathology, University of Pennsylvania School of Medicine, Philadelphia, PA 19104-4283, USA.

Abstract

BACKGROUND:

Patients with frontotemporal dementia due to mutation of progranulin may have a distinct phenotype.

OBJECTIVE:

To identify distinct clinical and pathologic features of patients with frontotemporal dementia who have mutations of progranulin (GRN).

DESIGN:

Retrospective clinical-pathologic study.

SETTING:

Academic medical center.

PATIENTS:

Twenty-eight patients with frontotemporal dementia, including 9 with GRN mutations (4 autopsy cases and 5 with only clinical information) and 19 with the identical pathologic diagnosis--frontotemporal lobar degeneration with ubiquitin-positive and tau-negative inclusions (FTLD-U)--and no GRN mutations.

MAIN OUTCOME MEASURES:

Demographic, symptom, neuropsychological, and autopsy characteristics.

RESULTS:

Patients with and without a GRN mutation have similar demographic features, although family history is significantly more common in patients with frontotemporal dementia and a GRN mutation. Both patient groups have frequent social and personality complaints. Neuropsychological evaluation reveals a significant recognition memory deficit in patients with a GRN mutation but a significant language deficit only in patients without a GRN mutation. At autopsy, the semiquantitative burden of ubiquitin abnormality is relatively modest in both groups of patients.

CONCLUSION:

Patients with a GRN mutation differ clinically from those with the same pathologic diagnosis but no GRN mutation.

PMID:
17698705
DOI:
10.1001/archneur.64.8.1148
[Indexed for MEDLINE]

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