The genetic study lends credence to the theory that migraine stems from problems with the blood supply system in the brain. Researchers believe it will provide a good basis on which to develop tailor-made treatment for migraine sufferers.
US regulators have approved a breakthrough treatment that genetically engineers patients' own blood cells to fight childhood leukemia. Experts say it may open the way to treating other cancers with a similar procedure.
Researchers in the US have used an experimental gene-editing technique to correct a mutation in dozens of embryos. Some hailed the development as illuminating and surprising; others say it crossed a moral line.
A judge at the High Court in London is hearing new evidence before ruling on whether a critically ill child should be sent for treatment to the US or be taken off life support. The case has drawn world attention.
Two British parents have given up their legal battle to take their son to the US for experimental treatment. Their lawyer said that "time had run out," judging by the 11-month-old's latest brain scans.
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