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Cancer Treatments Accelerate Child Survivors' Aging
6 Mar
Summary
- Childhood cancer treatments may speed up biological aging significantly.
- Chemotherapy showed the largest impact on accelerating aging.
- Higher biological age linked to memory and attention difficulties.
Childhood cancer survivors may face accelerated biological aging, according to recent findings published in Nature Communications. Life-saving treatments, such as chemotherapy and radiation, are being examined for their long-term impact on the aging process in young individuals.
The study analyzed blood samples from 1,400 long-term survivors treated at St. Jude Children's Research Hospital. Using epigenetic clocks, researchers assessed biological age, which reflects cellular damage, contrasting it with chronological age.
Chemotherapy emerged as the treatment with the most significant effect on aging acceleration. Scientists observed that this accelerated cellular aging was closely associated with poorer cognitive function, particularly affecting memory and attention capabilities.
Dr. Marc Siegel noted that chemotherapy can damage normal cells and lead to 'chemo brain,' causing temporary cognitive issues. Researchers aim to identify when accelerated aging begins to develop early intervention strategies.
The study's authors, including lead researcher AnnaLynn Williams, expressed hope that interventions could improve both the lifespan and quality of life for young cancer survivors. However, limitations include the inability to adjust for chronic health conditions and the study's observational nature, which could not definitively prove causation.
