Progression of cerebral white matter lesions in Alzheimer's disease: a new window for therapy?

De Leeuw, F-E.; Barkhof, F.; Scheltens, P.
September 2005
Journal of Neurology, Neurosurgery & Psychiatry;Sep2005, Vol. 76 Issue 9, p1286
Academic Journal
Background: White matter lesions (WML) are a risk factor for Alzheimer's disease. Progression of WML is associated with vascular factors and cognitive decline in population based studies but the course of WML is unknown in Alzheimer's disease. Objective: To investigate the prevalence and risk factors for progression of WML in Alzheimer's disease. Subjects: 38 patients with Alzheimer's disease for whom blood pressure measurements and sequential brain MRIs were available. Methods: The proportion of patients with progression of WML was calculated, stratified on baseline absence or presence of WML by analysis of variance. Odds ratios (OR) were calculated by age and sex adjusted logistic regression to quantify the relation between blood pressure and progression of WML Results: About 25% of the patients showed progression of WML Patients with WML at baseline had significantly more progression than those without WML at baseline (adjusted mean difference =1.2; 95% confidence interval (CI), 0.6 to 1.8). Diastolic blood pressure (DBP) was particularly related to progression of WML (OR = 5.9 (95% CI, 1.0 to 37.6) per 10 mm Hg DSP, p=0.05). Conclusions: Alzheimer's disease patients with WML at baseline are at risk for rapid progression of WML WML may offer a potential treatment target in this disease to ameliorate the rate of cognitive decline.


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