BMJ · 29 July 2026 · From issue 13

A blood thinner helped more migraine patients with a heart hole than a standard migraine drug did.

Ziping Li, Chuangshi Wang et al., Antithrombotic treatment for migraine in patients with patent foramen ovale: multicentre, randomised, active controlled, open label trial, BMJ.

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Also in issue 13 15 papers

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In mice, removing one gene switch in immune cells made them more vulnerable to a gut infection.
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Invasive species do more damage in poorer nations, not richer ones as long assumed.
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The grab point on human centromeres mutates far faster than the rest of the region, up to 20 times more.
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Most carbon from Canada's record 2023 wildfires rose from soil, not burning trees.
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One lab-made reactive fragment performed almost every classic carbon-building reaction under the same mild conditions.
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In a lab experiment, a moving focus point that beats normal light speed limits made controllable terahertz light bursts.
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In mice, a chemical tag on a kidney salt channel is required to stop the body losing too much salt.
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