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Mitochondria expel tainted DNA — spurring age-related inflammation

Mitochondria expel tainted DNA — spurring age-related inflammation

Mitochondria (illustration) have their own DNA, which they expel into their environment if the molecules don’t meet their standards.Credit: Kateryna Kon/Science Photo Library The cellular batteries known as mitochondria sometimes dump DNA into their surroundings, which can contribute to inflammation during ageing. Now a study in mice reveals why this dumping occurs: mitochondria are expelling ‘tainted’ DNA1. Scientists found that, …

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