New study clarifies catalyst design for cleaner ammonia production
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Updates every hour. Last Updated: 25-Jul-2025 21:11 ET (26-Jul-2025 01:11 GMT/UTC)
Researchers from Japan and France have successfully reconstituted the development of mouse egg cells, known as oocytes, from embryonic stem cells entirely in vitro, without the need for ovarian support cells. This new method offers researchers a powerful new platform to investigate the molecular mechanisms that control oogenesis, the process by which egg cells develop, and lays important groundwork for future applications in human reproductive biology.
A team from The University of Osaka found that the intestinal flora works together with the OTUD3 and STING genes to aggravate ulcerative colitis, a disease with no cure that causes major intestinal pain and bloody diarrhea. When the OTUD3 gene is mutated, microbes in the intestinal flora trigger STING signalingOTUD, leading to inflammation in the colon. The intestinal flora and STING signaling may be important new targets for ulcerative colitis treatment.