Washington: The radiation and chemotherapy given to young cancer patients don`t seem to increase the risk that their own children will have birth defects years later, a US and Canadian study said.Researchers, whose findings were published in the Journal of Clinical Oncology, said this was "reassuring" because some doctors have wondered if the powerful drugs and radiation -- especially radiation directed near the ovaries or testicles -- might have long-term effects on the DNA of egg and sperm cells.There is already evidence the treatments can affect a growing girl`s uterus, for example, in ways that can cause other pregnancy problems."A lot of children are rendered infertile from strong treatments. We know now that depending on the types of treatment they received, they have higher rates of miscarriage (and) higher rates of low birth weight," said study author Lisa Signorello, from the International Epidemiology Institute in Rockville, Maryland."As a cancer survivor, the worries extend to the health of your children in many ways."
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