The dementia Australia NSW blog *Younger Onset Dementia and ME*

*The dementia Australia NSW blog *Younger Onset Dementia and ME* is a place for people to connect with others, to get information and helpful suggestions.

A diagnosis of younger onset dementia can be very isolating. You may have received a diagnosis, be someone who is caring for a family member, or you may have a mum or dad with younger onset dementia. You are not alone. The National Younger Onset Dementia Key Worker Program provides individualised information and support to improve the quality of life for people with younger onset dementia and also see NSW - Younger Onset Dementia . For more information contact the National Dementia Helpline on 1800 100 500.

Tuesday, 14 July 2015

new article - The Patterns of Inheritance in Early-Onset Dementia: Alzheimer’s Disease and Frontotemporal Dementia


Aim: To investigate the patterns of inheritance and gene mutation status in early-onset dementia (EOD).

Methods: Data were collected on 202 consecutive patients presenting to an EOD clinic. Early-onset Alzheimer’s disease (EOAD, n = 120) and early-onset frontotemporal dementia (EOFTD, n = 82) were studied.

Results: The majority of participants, 72.5% with EOAD and 74.4% with EOFTD, did not have a positive family history of dementia. An autosomal dominant pattern of inheritance was observed in 14.2% of patients with EOAD and 13.4% of patients with FTD. Of those with an autosomal dominant pattern of inheritance, 11.8% of EOAD and 45.5% of FTD probands had known pathogenic mutations. Only 1.6% of the total population of EOAD and 7.3% of EOFTD possessed known gene mutations.

Conclusion: Early-onset dementia does not appear to be a strongly inherited autosomal dominant condition. The majority of patients were sporadic. Known mutations were uncommon and do not explain the total autosomal dominant burden.

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