A new original article published in eGastroenterology reports a study of 647 adults with acute or chronic pancreatitis found that 114, or 17.6%, developed thromboembolic events during hospitalization. Researchers used six admission measures to create a risk score that separated patients into groups with observed thrombosis rates of 7.6%, 22.0%, and 38.5%. The single-center observational model requires prospective external validation, but it could help clinicians identify patients who may benefit from vascular imaging earlier in their hospital care pathway.

Retraction is intended to correct the scientific literature and preserve its integrity. However, a study published in the Chinese Neurosurgical Journal found that retracted papers on brain and central nervous system tumors continued to be cited after retraction, with 582 publications receiving more than 12,000 citations. The study highlights the need to improve how retractions are communicated to researchers and encourage them to check a paper's retraction status before citing it.

In February–March 2025, Arctic sea ice extent reached a record low despite a decadal slowdown in ice loss. A weak La Niña alone could not explain this event. Using observations, reanalysis data and a linear baroclinic model, researchers show that La Niña and a concurrent South Indian Ocean warm anomaly jointly triggered a northeast-propagating Rossby wave, producing an anticyclonic anomaly over the Sea of Okhotsk that accelerated ice melt.

A recent study published in National Science Review has reconstructed glacier mass balance across High Mountain Asia from 1975 to 2013 using historical satellite imagery, revealing a 54% acceleration in glacier mass loss after 2000 and striking regional contrasts. The findings suggest that the so-called "Karakoram anomaly" may instead be centered around the circum-Tarim Basin, challenging its traditionally recognized geographic extent and providing a new benchmark for understanding long-term glacier changes.

In a study of 976 patients who underwent allogeneic hematopoietic stem cell transplantation (HSCT) after myeloablative conditioning, the presence of donor-derived unlicensed natural killer cells (U-NK cells) was associated with faster hematopoietic recovery and improved clinical outcomes. Further experiments explored the potential underlying mechanisms, demonstrating that U-NK cells enhanced the in vitro colony-forming capacity of hematopoietic stem and progenitor cells. In vivo infusion of U-NK cells accelerated donor neutrophil and platelet engraftment after myeloablative conditioning and increased the numbers of granulocyte-monocyte progenitors, megakaryocyte-erythroid progenitors, and multipotent progenitors during the early post-transplantation period. These changes were accompanied by elevated plasma levels of factor VII and serum amyloid A1, providing further clues to the mechanisms by which U-NK cells may promote hematopoietic recovery. In summary, U-NK cells may provide a valuable reference for donor selection in HSCT and may facilitate the development of therapeutic strategies for poor hematopoietic engraftment or graft failure.

Researchers from Nankai University developed a urea‑modified covalent organic framework (urea‑COF) via linker‑editing strategy. Ordered hydrogen‑bond networks inside COF pores serve as proton highways, accelerating Grotthuss proton transfer and overcoming the sluggish water‑oxidation bottleneck. The urea‑COF achieves a high H₂O₂ production rate of 4104 μmol g⁻¹ h⁻¹, 2.8‑fold higher than imine‑COF. A buoyant tri‑phase hydrogel‑bead reactor was further constructed for in‑situ water disinfection. Techno‑economic analysis shows a competitive levelized cost of 14.6 USD kg⁻¹ for distributed solar‑powered water treatment.