[AP] People with a DNA mutation that reduces their chance of HIV infection may die sooner, according to a study that suggests tinkering with a gene to try to fix one problem may cause others.The study authors cited the case of the Chinese researcher who tried to produce this mutation in twin girls before their birth, to reduce their risk for HIV. His work, which produced the first gene-edited babies, was widely condemned as unethical and risky, and the new paper illustrates one reason for concern.
"You should consider all the effects of mutations you induce," said Rasmus Nielsen of the University of California, Berkeley, senior author of the paper, released Monday by the journal Nature Medicine.
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