Frontotemporal Dementia
NGS panel

Genes
(full
coding region):		 ABCA7, APOE, APP, CHMP2B, CSF1R, FUS, GRN, ITM2B, MAPT, PRNP, PSEN1, PSEN2, SIGMAR1, SNCA, SORL1, TARDBP, TBK1, TREM2, TUBA4A, UBE3A, UBQLN2, VCP
List of diseases covered by the panel
Non-coding variants: List of non-coding variants covered by the panel
Lab method: NGS panel with CNV analysis
TAT: 6-9 weeks
Specimen requirements: 2-4 ml of blood with anticoagulant EDTA

1 µg DNA in TE, AE or pure sterile water at 100-250 ng/µl
The A260/A280 ratio should be 1.8-2.0. DNA sample should be run on an agarose gel as a single band, showing no degradation, alongside with a quantitative DNA marker.
Ordering information: Go to online ordering or download sample submission form

Deletion/duplication analysis

Genes: CRHR1, GRN, MAPT
Lab method: MLPA
TAT: 4-6 weeks
Specimen requirements: 2-4 ml of blood with anticoagulant EDTA

1 µg DNA in TE, AE or pure sterile water at 100-250 ng/µl
The A260/A280 ratio should be 1.8-2.0. DNA sample should be run on an agarose gel as a single band, showing no degradation, alongside with a quantitative DNA marker.
Ordering information: Go to online ordering or download sample submission form

Indications for genetic testing:

1. Confirmation of clinical diagnosis
2. Determination of differential diagnosis
3. Testing of at-risk asymptomatic adults
4. Genetic counseling

Frontotemporal dementia (FTD) is a degenerative condition characterized by progressive neuronal loss in the temporal and frontal lobes of the brain. Clinical presentations may include behavioral changes, language disturbances, aphasia, extrapyramidal signs, rigidity, bradykinesia, supranuclear palsy, saccadic eye movement disorders, and mutism.

FTD usually occurs between ages 40 and 60 years, but may appear earlier or later. Most individuals diagnosed with the disorder have had an affected parent with the clinical symptoms of frontotemporal dementia. FTD is inherited in an autosomal dominant manner.

References:

Cardarelli R et al. Frontotemporal dementia: a review for primary care physicians. Am Fam Physician. 2010 Dec 1;82(11):1372-7.
Harms MM et al. TARDBP-Related Amyotrophic Lateral Sclerosis. GeneReviews® 2009 April 23 (Updated 2015 March 12).
Hsiung G-YR and Feldman HH. GRN-Related Frontotemporal Dementia. GeneReviews® 2007 Sept 7 (Updated 2013 March 14).
Van Swieten JC et al. MAPT-Related Disorders. GeneReviews® 2000 Nov 7 (Updated 2010 Oct 26).