Background Weight loss is common in people with Alzheimer's disease (AD) and it could be a marker of impending AD in Mild Cognitive Impairment (MCI) and improve prognostic accuracy, if accelerated progression to AD would be shown. Aims To assess weight loss as a predictor of dementia and AD in MCI. Methods One hundred twenty-five subjects with MCI (age 73.8 ± 7.1 years) were followed for an average of 4 years. Two weight measurements were carried out at a minimum time interval of one year. Dementia was defined according to DSM-IV criteria and AD according to NINCDS-ADRDA criteria. Weight loss was defined as a ≥4% decrease in baseline weight. Results Fifty-three (42.4%) MCI progressed to dementia, which was of the AD-type in half of the cases. Weight loss was associated with a 3.4-fold increased risk of dementia (95% CI = 1.5-6.9) and a 3.2-fold increased risk of AD (95% CI = 1.4-8.3). In terms of years lived without disease, weight loss was associated to a 2.3 and 2.5 years earlier onset of dementia and AD. Conclusions Accelerated progression towards dementia and AD is expected when weight loss is observed in MCI patients. Weight should be closely monitored in elderly with mild cognitive impairment.

Weight loss predicts progression of mild cognitive impairment to Alzheimer's disease / I. Cova, F. Clerici, A. Rossi, V. Cucumo, R. Ghiretti, L. Maggiore, S. Pomati, D. Galimberti, E. Scarpini, C. Mariani, B. Caracciolo. - In: PLOS ONE. - ISSN 1932-6203. - 11:3(2016 Mar). [10.1371/journal.pone.0151710]

Weight loss predicts progression of mild cognitive impairment to Alzheimer's disease

I. Cova
Primo
;
A. Rossi;V. Cucumo;R. Ghiretti;L. Maggiore;S. Pomati;D. Galimberti;E. Scarpini;C. Mariani
Penultimo
;
2016

Abstract

Background Weight loss is common in people with Alzheimer's disease (AD) and it could be a marker of impending AD in Mild Cognitive Impairment (MCI) and improve prognostic accuracy, if accelerated progression to AD would be shown. Aims To assess weight loss as a predictor of dementia and AD in MCI. Methods One hundred twenty-five subjects with MCI (age 73.8 ± 7.1 years) were followed for an average of 4 years. Two weight measurements were carried out at a minimum time interval of one year. Dementia was defined according to DSM-IV criteria and AD according to NINCDS-ADRDA criteria. Weight loss was defined as a ≥4% decrease in baseline weight. Results Fifty-three (42.4%) MCI progressed to dementia, which was of the AD-type in half of the cases. Weight loss was associated with a 3.4-fold increased risk of dementia (95% CI = 1.5-6.9) and a 3.2-fold increased risk of AD (95% CI = 1.4-8.3). In terms of years lived without disease, weight loss was associated to a 2.3 and 2.5 years earlier onset of dementia and AD. Conclusions Accelerated progression towards dementia and AD is expected when weight loss is observed in MCI patients. Weight should be closely monitored in elderly with mild cognitive impairment.
aged; Alzheimer disease; biomarkers; body weight; cognitive dysfunction; dementia, vascular; diagnostic and statistical manual of mental disorders; disease progression; female; humans; lewy body disease; male; neuropsychological tests; prognosis; weight loss; medicine (all); biochemistry, genetics and molecular biology (all); agricultural and biological sciences (all)
Settore MED/26 - Neurologia
mar-2016
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/502808
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