Thursday, April 01, 2021

Low-calorie diet and mild exercise improve survival for young people with leukemia


https://www.eurekalert.org/pub_releases/2021-04/uoc--lda033121.php

 

News Release 1-Apr-2021
University of California - Los Angeles Health Sciences

 

In some cancers, including leukemia in children and adolescents, obesity can negatively affect survival outcomes. Obese young people with leukemia are 50% more likely to relapse after treatment than their lean counterparts.

Now, a study led by researchers at UCLA and Children's Hospital Los Angeles has shown that a combination of modest dietary changes and exercise can dramatically improve survival outcomes for those with acute lymphoblastic leukemia, the most common childhood cancer.

The researchers found that patients who reduced their calorie intake by 10% or more and adopted a moderate exercise program immediately after their diagnosis had, on average, 70% less chance of having lingering leukemia cells after a month of chemotherapy than those not on the diet-and-exercise regimen.

Lingering cancer cells in the bone marrow, which are more likely to be found in overweight individuals, are associated with worse survival and a higher risk of relapse, often leading to more intense treatments like bone marrow transplants and immunotherapy.

"We tested a very mild diet because this was our first time trying it, and the first month of treatment is already so difficult for patients and families," said senior author Dr. Steven Mittelman, chief of pediatric endocrinology at UCLA Mattel Children's Hospital and a member of the UCLA Jonsson Comprehensive Cancer Center. "But even with these mild changes in diet and exercise, the intervention was extremely effective in reducing the chance of having detectable leukemia in the bone marrow."


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