Cholinesterase Inhibitors Reduce Aggression, Wandering And Paranoia In Alzheimer's Disease
December 10, 2008
Adapted from Indiana University
Cholinesterase inhibitors, used to treat cognitive symptoms of Alzheimer's disease, are also a safe and effective alternative therapy for the behavioral and psychological symptoms of dementia, according to a study that appears in the December 2008 edition of Clinical Interventions in Aging. Investigators from the Indiana University School of Medicine, the Regenstrief Institute and Wishard Health Services reviewed nine randomized, double-blind, placebo-controlled clinical trials evaluating the effectiveness of three popular cholinesterase inhibitors in managing behavioral and psychological symptoms displayed by patients with Alzheimer's disease.
The researchers report that the trial results indicate cholinesterase inhibitors led to a statistically significant reduction in behavioral and psychological symptoms such as aggression, wandering or paranoia when using the same dosage as administered for improving cognitive impairment. Nine out of 10 Alzheimer's disease patients display behavioral and psychological symptoms of their disease. The review of the clinical trials revealed that cholinesterase inhibitors are safe, producing no major side effects.
"There is a need for safe alternatives to the anti-psychotic drugs currently used to manage the behavioral and psychological symptoms of Alzheimer's disease. The results of the studies we analyzed are encouraging and suggestive that cholinesterase inhibitors are safe and effective alternatives. However, they are underutilized and typically prescribed for less than three months and for less than 10 percent of patients with Alzheimer's disease. Our findings might provide clinicians with useful data to justify the appropriate use of these medications," said Malaz Boustani, M.D., corresponding author of the Clinical Interventions in Aging paper.
In Alzheimer's disease there is a decrease in acetylcholine, a chemical in the brain that assists memory, thought and judgment. Cholinesterase inhibitors raise acetylcholine levels. Increased concentrations of acetylcholine in the brain leads to increased communication between nerve cells and may improve or stabilize the symptoms of Alzheimer's disease in the early and moderate stages of progression.
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