P.S. I Love You Posted October 5, 2006 Share Posted October 5, 2006 Chemo-Brain Lasts Years Chemo has long-term impact on brain function -study Oct. 5, 2006— - WASHINGTON, Oct 5 (Reuters) - Chemotherapy causes changes in the brain's metabolism and blood flow that can last as long as 10 years, a discovery that may explain the mental fog and confusion that affect many cancer survivors, researchers said on Thursday. The researchers, from the University of California, Los Angeles, found that women who had undergone chemotherapy five to 10 years earlier had lower metabolism in a key region of the frontal cortex. Women treated with chemotherapy also showed a spike in blood flow to the frontal cortex and cerebellum while performing memory tests, indicating a rapid jump in activity level, the researchers said in a statement about their study. "The same area of the frontal lobe that showed lower resting metabolism displayed a substantial leap in activity when the patients were performing the memory exercise," said Daniel Silverman, the UCLA associate professor who led the study. "In effect, these women's brains were working harder than the control subjects' to recall the same information," he said in a statement. Experts estimate at least 25 percent of chemotherapy patients are affected by symptoms of confusion, so-called chemo brain, and a recent study by the University of Minnesota reported an 82 percent rate, the statement said. "People with 'chemo brain' often can't focus, remember things or multitask the way they did before chemotherapy," Silverman said. "Our study demonstrates for the first time that patients suffering from these cognitive symptoms have specific alterations in brain metabolism." The study, published on Thursday in the online edition of Breast Cancer Research and Treatment, tested 21 women who had surgery to remove breast tumors, 16 of whom had received chemotherapy and five who had not. The researchers used positron emission tomography scans to compare the brain function of the women. They also compared the scans with those of 13 women who had not had breast cancer or chemotherapy. Positron emission tomography creates an image of sections of the body using a special camera that follows the progress of an injected radioactive tracer. Researchers used the scans to examine the women's resting brain metabolism as well as the blood flow to their brains as they did a short-term memory exercise. Silverman said the findings suggested PET scans could be used to monitor the effects of chemotherapy on brain metabolism. Since the scans already are used to monitor patients for tumor response to therapy, the additional tests would be easy to add, he said. Breast cancer is the most common cancer among women, with some 211,000 new cases diagnosed each year, the statement said. REUTERS@ Reut22:50 10-04-0610-05-2006 02:50UTC / (RE.ny-reu1.am-nyny-inwcp01) / Copyright © 2006 ABC News Internet Ventures Quote Link to comment Share on other sites More sharing options...
Anais Posted October 7, 2006 Share Posted October 7, 2006 Yes I have read this study in Montreal's French newspaper... http://www.cyberpresse.ca/article/20061 ... CPACTUEL03 Scary... Quote Link to comment Share on other sites More sharing options...
J.C. Posted October 7, 2006 Share Posted October 7, 2006 Also read it, and saw the changes in some of my friends that had chemo for bc, these women are actually feeling that memory is running away from them in their daily task. Hard at home, hard at work. If they could find out which combination of chemo cause it would even be better. Makes me glad I didn't have chemo. If my memory is lacking I'll blame age for it. Jackie Quote Link to comment Share on other sites More sharing options...
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