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   Researchers Study Eating Abnormalities in Frontotemporal Dementia Subtypes    
      
      
   JANUARY 21, 2015 Daniela Semedo, PhDBY DANIELA SEMEDO, PHD IN NEWS.    
   Researchers Study Eating Abnormalities in Frontotemporal Dementia Subtypes    
      
        
   alzheimer's MRIA team of researchers from Australia aimed to determine the   
   occurrence of eating abnormalities in subtypes of frontotemporal dementia   
   (FTD) besides the well established behavioral variant of frontotemporal   
   dementia (bvFTD). The study    
   entitled "Quantifying the Eating Abnormalities in Frontotemporal Dementia",   
   was recently published in JAMA Neurology.    
      
   Evidence shows that abnormal eating behaviors are present in up to 60% of   
   patients with frontotemporal dementia (FTD). Eating abnormalities are one of   
   the main criteria to diagnose behavioural variant FTD (bvFTD). These abnormal   
   eating behaviours include    
   appetite changes, increased carbohydrate intake, changes in food preference,   
   including increased sweets intake. These eating alterations have been also   
   observed in patients with semantic dementia (SD).    
      
   There is a lack of evidence of systematic comparisons of eating changes in   
   patients with bvFTD and SD. In this regard, Olivier Piguet and colleagues   
   compared patients with bvFTD (N=21) and semantic dementia (SD) (N=26) with   
   patients with Alzheimer    
   disease (AD) (N=28) and healthy control participants (N=18). Eating behavior   
   included energy, sugar, carbohydrate, protein, and fat intake, as well as   
   indices of metabolic health.    
      
   Participants were recruited from FRONTIER, the FTD clinic at Neuroscience   
   Research Australia in Sydney. All the 73 participants were assessed with   
   clinical interview, neurologic examination, cognitive assessment, and   
   structural brain magnetic resonance    
   imaging. Results revealed that the bvFTD group had higher abnormalities in   
   appetite, eating habits, food preferences and swallowing, when compared with   
   the AD group. The bvFTD and SD groups revealed increased energy consumption.   
   The bvFTD also had higher    
   levels of carbohydrate intake compared to controls, and the SD group had   
   significantly increased sugar intake. The SD group was found to have lower   
   hunger and satiety scores compared with the bvFTD group. Moreover, eating   
   abnormalities was found in the 2    
   groups (bvFTD and SD) with the highest body mass index and waist   
   circumference.    
      
   Based on these results, Olivier Piguet and colleagues indicate that abnormal   
   eating behaviors are more obvious in patients with bvFTD and those with SD.   
   However, eating abnormalities are not limited to increased appetite, but also   
   involve higher intake    
   of sugar and carbohydrates. This study revealed the higher levels of sugar and   
   carbohydrate consumption found in patients with FTD subtypes and those with   
   higher body mass index and waist circumference only increased hunger or lower   
   satiety. The    
   researchers suggest that future studies should include actinography to   
   understand caloric intake vs expenditure.    
      
      
        
   TAGGED FRONTOTEMPORAL DEMENTIA, NUTRITION.    
      
   Daniela Semedo, PhD    
   Daniela Semedo, PhD    
   Daniela is a PhD research student in Clinical Psychology at the University of   
   Edinburgh. Her main fields of interest are Psychopathology and Prevention of   
   Psychotic Disorders in clinical populations. Daniela holds a BSc in Clinical   
   Psychology, a PGDip in    
   Neuropsychology and a MSc in Health Psychology.    
      
      
   http://alzheimersnewstoday.com/2015/01/21/researchers-study-eati   
   g-abnormalities-in-frontotemporal-dementia-subtypes/   
      
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