title: Amyotrophic lateral sclerosis and frontotemporal dementia: distinct and overlapping changes in eating behaviour and metabolism.
abstract: Metabolic changes incorporating fluctuations in weight, insulin resistance, and cholesterol concentrations have been identified in several neurodegenerative disorders. Whether these changes result from the neurodegenerative process affecting brain regions necessary for metabolic regulation or whether they drive the degenerative process is unknown. Emerging evidence from epidemiological, clinical, pathological, and experimental studies emphasises a range of changes in eating behaviours and metabolism in amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). In ALS, metabolic changes have been linked to disease progression and prognosis. Furthermore, changes in eating behaviour that affect metabolism have been incorporated into the diagnostic criteria for FTD, which has some clinical and pathological overlap with ALS. Whether the distinct and shared metabolic and eating changes represent a component of the proposed spectrum of the two diseases is an intriguing possibility. Moreover, future research should aim to unravel the complex connections between eating, metabolism, and neurodegeneration in ALS and FTD, and aim to understand the potential for targeting modifiable risk factors in disease development and progression.
authors.affiliation: Neuroscience Research Australia, Sydney, NSW, Australia; ARC Centre of Excellence in Cognition and its Disorders, University of New South Wales, Sydney, NSW, Australia; Sydney Medical School, Brain and Mind Centre, University of Sydney, Sydney, NSW, Australia. Electronic address: rebekah.ahmed@sydney.edu.au.
authors.forename: Rebekah M
authors.initials: RM
authors.lastname: Ahmed
authors.affiliation: Neuroscience Research Australia, Sydney, NSW, Australia; ARC Centre of Excellence in Cognition and its Disorders, University of New South Wales, Sydney, NSW, Australia; School of Psychology, University of New South Wales, Sydney, NSW, Australia.
authors.forename: Muireann
authors.initials: M
authors.lastname: Irish
authors.affiliation: Neuroscience Research Australia, Sydney, NSW, Australia; ARC Centre of Excellence in Cognition and its Disorders, University of New South Wales, Sydney, NSW, Australia.
authors.forename: Olivier
authors.initials: O
authors.lastname: Piguet
authors.affiliation: Neuroscience Research Australia, Sydney, NSW, Australia; ARC Centre of Excellence in Cognition and its Disorders, University of New South Wales, Sydney, NSW, Australia; Department of Anatomy, School of Medical Sciences, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia.
authors.forename: Glenda M
authors.initials: GM
authors.lastname: Halliday
authors.affiliation: Neuroscience Research Australia, Sydney, NSW, Australia; Dementia Research Unit, School of Medical Sciences, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia.
authors.forename: Lars M
authors.initials: LM
authors.lastname: Ittner
authors.affiliation: University of Cambridge Metabolic Research Laboratories and National Institute of Health Research Cambridge Biomedical Research Centre, Wellcome Trust-Medical Research Council Institute of Metabolic Science, Cambridge, UK.
authors.forename: Sadaf
authors.initials: S
authors.lastname: Farooqi
authors.affiliation: Neuroscience Research Australia, Sydney, NSW, Australia; ARC Centre of Excellence in Cognition and its Disorders, University of New South Wales, Sydney, NSW, Australia.
authors.forename: John R
authors.initials: JR
authors.lastname: Hodges
authors.affiliation: Sydney Medical School, Brain and Mind Centre, University of Sydney, Sydney, NSW, Australia.
authors.forename: Matthew C
authors.initials: MC
authors.lastname: Kiernan
mesh_terms: D000690:Amyotrophic Lateral Sclerosis / Q000378:metabolism* / Q000503:physiopathology; D000818:Animals; D005247:Feeding Behavior / Q000502:physiology*; D057180:Frontotemporal Dementia / Q000378:metabolism* / Q000503:physiopathology; D006801:Humans