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Articles by B. Vellas
Total Records ( 2 ) for B. Vellas
  Sophie Gillette- Guyonnet , Sandrine Andrieu , Thierry Dantoine , Jean-François Dartigues , Jacques Touchon , B. Vellas and MAPT Study Group
  Because no effective curative approaches are available, preventive approaches in the field of Alzheimer's disease (AD) are needed. We present the design of the ongoing Multidomain Alzheimer Preventive Trial (MAPT) Study. Several previous studies suggested that many factors may be involved in the occurrence of AD at late ages. Because of the probable multifactorial nature of AD, it seems logical to initiate multidomain interventions to examine their potential synergistic effects. The MAPT Study aims to evaluate the efficacy of a multidomain intervention (nutritional, physical, and cognitive training) and omega 3 treatment in the prevention of cognitive decline in frail elderly persons aged 70 years or over. The study also collects imaging and biological data that could be used in future AD prevention and treatment trials. Methods The MAPT Study is a 3-year, randomized, controlled trial conducted by university hospital practitioners specializing in memory disorders in four French cities (Bordeaux, Limoges, Montpellier, and Toulouse). The study plans to enroll 1200 frail elderly subjects on the basis of at least one of the following criteria: subjective memory complaint spontaneously expressed to a general practitioner, limitation in one instrumental activity of daily living (IADL), and slow walking speed. To demonstrate the protective effect of interventions, subjects are randomized into one of the following four groups: omega 3 alone, multidomain intervention alone, omega 3 plus multidomain intervention, or placebo (n = 300 each). The principal outcome measure is a change in cognitive function at 3 years, as determined by the Grober and Buschke Test. Conclusions The MAPT Study is the first preventive trial involving multidomain interventions. Final results should be available in 2013.
  P. de Souto Barreto , C. Sanz , B. Vellas , M. Lapeyre-Mestre and Y. Rolland


The aim of this study was to describe drug treatment for diabetes in a large sample of nursing home residents and to compare subjects' health outcomes according to the anti-diabetic agents used.


The cross-sectional data of 6275 residents [average age 86 years (± 8.2); 73.7% women] from 175 nursing homes in France were analysed. Participants were divided into one of the following four groups: diabetes non-drug treatment, diabetes hypoglycaemic (e.g. insulins, sulphonylurea) treatment, diabetes non-hypoglycaemic (e.g. metformin) treatment and no diabetes. Group comparisons were made on functional ability (activities of daily living score) and on the prevalence of the following variables (yes vs. no): emergency department visits, falls and fractures.


Of the participants, 1076 (17.1%) had diabetes: 222 participants in the non-drug treatment group, 722 in the hypoglycaemic group and 132 in the non-hypoglycaemic group. The remaining 5199 participants made up the group without diabetes. Insulin and metformin were used by 549 and 185 participants, respectively. Activities of daily living scores differed across the four groups, with those in the non-drug treatment group being the most disabled. Adjusted multivariate analyses showed that, compared with the group without diabetes, those in the hypoglycaemic group had a higher probability of emergency department visits (odds ratio 1.26, 95% CI 1.03-1.54) and increased the incidence rate ratios (1.02, 95% CI 1.00-1.04) of disability (activities of daily living score), whereas the non-hypoglycaemic group was not significantly associated with these outcomes.


The use of hypoglycaemic drugs was associated with poor health outcomes in nursing home residents. Therefore, more attention must be paid to adapting anti-diabetic treatment in this complex population.

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