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Family history of frontotemporal lobar degeneration in Asia – an international multi-center research

Published online by Cambridge University Press:  23 April 2014

Ryuji Fukuhara
Affiliation:
Department of Neuropsychiatry, Faculty of Life Science, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto-city, Japan
Amitabha Ghosh
Affiliation:
Department of Neurology and Cognitive Neurology Unit, Apollo Gleneagles Hospitals, No. 58, Canal Circular Road, Kolkata 700 054, West Bengal, India
Jong-Ling Fuh
Affiliation:
Department of Neurology, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Road, Beitou District, Taipei City, Taiwan National Yang-Ming University – School of Medicine, No. 155, Sec. 2, Linong Street, Taipei, Taiwan
Jacqueline Dominguez
Affiliation:
St. Lukes Medical Center, 279 E. Rodrtiguez Sr. Boulevard, Quezon City, Metro Manila, Philippines
Paulus Anam Ong
Affiliation:
Department of Neurology, Hasan Sadikin Hospital, Faculty of Medicine, Padjadjaran University, Bandung, West Java, Indonesia
Aparna Dutt
Affiliation:
Department of Neurology and Cognitive Neurology Unit, Apollo Gleneagles Hospitals, No. 58, Canal Circular Road, Kolkata 700 054, West Bengal, India
Yi-Chien Liu
Affiliation:
Neurological Center, Cardinal Tien Hospital, No. 362, Zhongzheng Road, Xindian District, New Taipei City, 231, Taiwan
Hibiki Tanaka
Affiliation:
Department of Neuropsychiatry, Faculty of Life Science, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto-city, Japan
Manabu Ikeda*
Affiliation:
Department of Neuropsychiatry, Faculty of Life Science, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto-city, Japan
*
Correspondence should be addressed to: Professor Manabu Ikeda, MD, PhD, Department of Neuropsychiatry, Faculty of Life Sciences, Kumamoto University Hospital, 1-1-1, Honjo, Chuo-ku, Kumamoto-city 860-8556, Japan. Phone: +81-96-373-5566; Fax: +81-96-373-5566. Email: mikeda@kumamoto-u.ac.jp.

Abstract

Background:

Previous studies in western countries have shown that about 30%–50% of patients with frontotemporal lobar degeneration (FTLD) have a positive family history, whereas the few epidemiological studies on FTLD done in Asia reported much lower frequencies. It is not clear the reason why the frequencies of FTLD with positive family history were lower in Asia. Furthermore, these findings were not from studies focused on family history. Therefore, it is necessary to conduct further studies on the family history of FTLD in Asia. This international multi-center research aims to investigate the family histories in patients with FTLD and related neurodegenerative diseases such as progressive supranuclear palsy (PSP), corticobasal syndrome (CBS), and motor neuron diseases in a larger Asian cohort.

Methods:

Participants were collected from five countries: India, Indonesia, Japan, Taiwan, and Philippines. All patients were diagnosed with behavioral variant frontotemporal dementia (bvFTD), semantic dementia (SD), progressive non-fluent aphasia (PA), frontotemporal dementia with motor neuron disease (FTD/MND), PSP, and corticobasal degeneration (CBD) according to international consensus criteria. Family histories of FTLD and related neurodegenerative diseases were investigated in each patient.

Results:

Ninety-one patients were included in this study. Forty-two patients were diagnosed to have bvFTD, two patients had FTD/MND, 22 had SD, 15 had PA, one had PA/CBS, five had CBS and four patients had PSP. Family history of any FTLD spectrum disorder was reported in 9.5% in bvFTD patients but in none of the SD or PA.

Conclusion:

In contrast to patients of the western countries, few Asian FTLD patients have positive family histories of dementia.

Type
Research Article
Copyright
Copyright © International Psychogeriatric Association 2014 

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