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Fisher Center Scientists Show That Anti-Inflammatory Drugs Reduce Effectiveness of SSRI Antidepressants

Mon, 04/25/2011 - 12:37pm
Bio-Medicine.Org

NEW YORK, April 25, 2011 /PRNewswire-USNewswire/ -- Scientists at the Fisher Center for Alzheimer's Disease Research at The Rockefeller University, led by Paul Greengard, Ph.D., and Jennifer Warner-Schmidt, Ph.D., have shown that anti-inflammatory drugs, which include ibuprofen, aspirin and naproxen, reduce the effectiveness of the most widely used class of antidepressant medications, the selective serotonin reuptake inhibitors, or SSRIs, taken for depression and obsessive-compulsive disorder and anxiety disorders. This surprising discovery, published online this week in the Proceedings of the National Academy of Sciences, may explain why so many depressed patients taking SSRIs do not respond to antidepressant treatment and suggests that this lack of effectiveness may be preventable. The study may be especially significant in the case of Alzheimer's disease. Such patients commonly suffer from depression and unless this can be treated successfully, the course of the illness is likely to be more severe. Depression in the elderly is also a risk factor for developing Alzheimer's disease and researchers have suggested that treating depression in the elderly might reduce the risk of developing the disease.

In the recent study, investigators treated animal models with antidepressants in the presence or absence of anti-inflammatory drugs. They then examined how the models behaved in tasks that are sensitive to antidepressant treatment. The behavioral responses to antidepressants were inhibited by anti-inflammatory/analgesic treatments. They then confirmed these effects in a human population.  Depressed individuals who reported anti-inflammatory drug use were much less likely to have their symptoms relieved by an antidepressant than depressed patient

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