期刊
NEUROCASE
卷 20, 期 1, 页码 110-120出版社
ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
DOI: 10.1080/13554794.2012.732090
关键词
Frontotemporal degeneration; Amyotrophic lateral sclerosis; Motor neuron disease; Alzheimer's disease; TDP-43; C9ORF72; c9FTD/ALS
资金
- Mayo Alzheimer's Disease Research Center [P50 AG016574]
- Identifying Mechanisms of Dementia: Role for MRI in the Era of Molecular Imaging [RO1 AG011378]
- ALS Association
- Mayo Foundation
- NIH [P50 AG016574, R01 NS065782, R01 AG026251, R01 AG011378, U01 AG006786, AG029550, AG032306, U01 096917, U01 AG024904, R01 AG032306]
- Baxter International Inc.
- Allon Therapeutics, Inc.
- Pfizer Inc
- NIH/NIA [P50 AG016574, R01AG011378]
- Alexander Family Alzheimer's Disease Research Professorship of the Mayo Foundation
- GE Healthcare
- Siemens Molecular Imaging
- AVID Radiopharmaceuticals
- NIH (NIA, NCI)
- MN Partnership for Biotechnology and Medical Genomics
- Leukemia & Lymphoma Society
- Cephalon, Inc.
- Allon Pharmaceuticals
- Mangurian Foundation
A hexanucleotide repeat expansion in the chromosome 9 open reading frame 72 (C9ORF72) gene was recently discovered as the cause underlying frontotemporal degeneration (FTD) and/or amyotrophic lateral sclerosis (ALS) linked to chromosome 9 (c9FTD/ALS). In this atypical case of c9FTD/ALS, the proband presented with amnestic mild cognitive impairment which evolved into Alzheimer's disease (AD)-type dementia and later developed ALS. Fluorodeoxyglucose-positron emission tomography of the brain demonstrated mild hypometabolism involving the medial frontal and lateral temporal lobes, left more so than right, which progressed over time. He was subsequently confirmed to have the C9ORF72 expansion. This report highlights the need to consider mutations in the FTD-associated genes when a familial disorder is suggested and neuroimaging studies reveal findings atypical of an AD pathophysiological process despite the typical anterograde amnestic syndrome.
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