Das Herausfiltern eines Proteins aus dem Blut einer schwangeren Person kann dazu beitragen, die Gefahren einer frühen Präeklampsie zu verringern

Filtering a protein out of a pregnant person’s blood may help ease a dangerous complication of pregnancy.

In a study of 16 women with early preeclampsia, [pulling a particular protein from their blood slightly lowered blood pressure](https://www.nature.com/articles/s41591-026-04333-6) and extended some pregnancies, researchers report April 27 in *Nature Medicine*. If larger trials confirm the results, the technique may one day be a treatment for the sometimes-fatal condition.

Preeclampsia affects 3 to 8 percent of people who give birth worldwide. “It doesn’t spare any races or ethnicities, and while there are some populations that are increased risk, for the most part, it affects really all women around the world,” says Ravi Thadhani, a nephrologist at Cedars-Sinai Health System in Los Angeles.

The exact causes aren’t known, but evidence collected by Thadhani and colleagues point to a protein called soluble Flt-1, made naturally by the placenta. Flt-1 helps control growth of placental blood vessels and, at some point, slows placental growth so the baby can grow.

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