Stem cells and diabetes reversal & HIV reservoirs and new treatments - News (Feb 26, 2026)

Today's topics: Stem cells and diabetes reversal - Chinese researchers report stem-cell-derived pancreatic islet transplants that restored insulin production in individual type 1 and type 2 diabetes cases—promising, but needing larger clinical trials. HIV reservoirs and new treatments - A Nature study isolates rare HIV “authentic reservoir clones” (ARCs) and shows long-term CTL pressure can slowly clear many; separately, a phase 3 ARTISTRY-1 trial tests a simplified bictegravir/lenacapavir single tablet. AI tools for brain imaging - MIT’s BrainAlignNet, AutoCellLabeler, and CellDiscoveryNet use deep learning to track and identify neurons in moving, deforming animals, easing a major microscopy bottleneck and accelerating behavior-to-brain mapping. Meta and AMD AI chips - Meta’s reported 6-gigawatt agreement for AMD MI450 chips—plus warrants tied to purchases—signals escalating AI data-center buildouts and intensifies the Nvidia-versus-AMD competition. Iran-US nuclear talks in Geneva - Iran and the US held a third round of indirect nuclear talks in Geneva via Omani mediation, amid regional military posturing, sanctions bargaining, and scrutiny over enrichment and IAEA access. US global tariff rate shift - A 10% US tariff on most global imports took effect after midnight, undercutting earlier talk of 15% and adding uncertainty following a Supreme Court ruling that struck down many prior Trump tariffs. Japan missile unit near Taiwan - Japan set a first timeline to deploy a surface-to-air missile unit to Yonaguni by March 2031, reflecting heightened Taiwan contingency planning and fresh friction with China. Ireland maritime security with allies - Ireland’s new maritime security strategy aims for deeper cooperation with France, the UK, and Nato-linked partners to protect subsea cables and counter Russia’s “shadow fleet” activity in Irish waters. Bacteria designed to attack tumors - University of Waterloo engineers modified Clostridium sporogenes to germinate in low-oxygen tumors and consume tissue from within, a potential add-on cancer therapy that could reach trials in 3–4 years. https://news.weill.cornell.edu/news/2026/02/new-strategies-aim-at-hiv%E2%80%99s-last-strongholds https://apnews.com/article/iran-us-war-geneva-talks-nuclear-c1eb17f570b059f34071937c3f310fb6 https://www.eurekalert.org/news-releases/1117529 https://www.bostonglobe.com/2026/02/24/business/trump-tariff-10-15/ https://kitchener.citynews.ca/2026/02/25/researchers-at-university-of-waterloo-develop-bacteria-to-eat-cancer-tumours/ https://www.bbc.com/news/articles/cd9gj1w2kn1o https://www.mcall.com/2026/02/24/meta-ai-chips-amd/ https://www.irishtimes.com/ireland/2026/02/24/ireland-to-deepen-co-operation-with-france-and-britain-to-protect-seas/ https://propakistani.pk/2026/02/24/scientists-in-china-successfully-reverse-type-1-and-type-2-diabetes-in-humans/ https://www.news-medical.net/news/20260225/New-single-pill-regimen-simplifies-treatment-for-resistant-HIV.aspx