Simple blood test detects preeclampsia risk months before symptoms appear, new study shows
Reports and Proceedings
Updates every hour. Last Updated: 22-Dec-2025 03:11 ET (22-Dec-2025 08:11 GMT/UTC)
Using a cell-free RNA (cfRNA) “liquid biopsy” of maternal plasma, researchers at the Carlos Simon Foundation and iPremom enrolled 9,586 pregnant women from 14 hospitals across Spain between September 2021 and June 2024. In a nested case-control analysis of 216 participants, they successfully predicted both early-onset and late-onset preeclampsia well before the onset of symptoms.
By isolating paternal age from female reproductive factors through the exclusive use of donor eggs from young women, the study provides robust evidence that male age plays a critical role in reproductive success, challenging the common assumption that sperm age has little impact once fertilisation occurs.
The findings, presented today at the ESOT Congress 2025, mark a significant step forward in overcoming the biggest challenge in xenotransplantation: rejection by the human immune system.
Urea is a fundamental industrial chemical and may have played a central role in the origin of life.
ETH researchers have discovered a new reaction: the spontaneous formation of urea on aqueous surfaces from carbon dioxide (CO₂) and ammonia (NH₃).
Its formation does not require catalysts, pressure or heat, illustrating how urea may have accumulated on Early Earth.
The reaction also has the potential for sustainable and low-energy urea synthesis.
Citrate is essential for the metabolism and development of neurons. A membrane transport protein called SLC13A5 plays a central role in this process and has previously been linked to a particularly severe form of epileptic encephalopathy. Building on data from the recently completed RESOLUTE and REsolution flagship projects, scientists at CeMM have comprehensively studied the function and structure of the membrane transporter SLC13A5, experimentally investigating 38 mutant variants. Their findings, published in Science Advances (DOI 10.1126/sciadv.adx3011) shed new light on the mechanisms of this disease and lay the foundation for further research into epilepsy and other disorders.
Researchers at ETH Zurich have developed a human model of lactating breast tissue using 3D printing and breast milk cells.
The cells in the tissue model produced components of human milk.
The model is designed to help better understand the processes involved in lactation.
A team of scientists at the MRC Laboratory of Medical Sciences (LMS) has uncovered a previously unknown mechanism that controls how genes are switched ‘on’ and ‘off’ during embryonic development. Their study sheds light on how diverse cell types are produced in developing embryos.