Outbreak Map Shifts as Utah, Arizona, Washington Grow and Nebraska Reports First Case
Measles activity continued to expand across several US states, with Utah reporting 21 new cases in the past week, bringing its outbreak total to 237 and hospitalizations to 21. Most Utah cases are concentrated in the state’s southwest, and the outbreak remains heavily skewed toward children and unvaccinated people. Arizona’s 2026 tally doubled from 12 to 24, with most cases in Mohave County, tied to a cross-border, two-state outbreak with southwest Utah. In Washington’s Snohomish County, three additional cases brought the total to six, linked to unvaccinated children and multiple exposure settings. Nebraska logged its first measles case of the year in Lancaster County—a vaccinated adult with no recent travel—prompting exposure alerts at a Walmart and urgent care. (CIDRAP)

Genetics and Exposure Sculpt the Immune Epigenome in Distinct Ways: An open-access Nature Genetics paper maps how genetics and exposure sculpt the immune-cell epigenome. Using 171 peripheral blood mononuclear cell samples from 110 people, the team profiled exposures including viral infections (HIV-1, influenza A, SARS-CoV-2), bacterial infection (MRSA/MSSA), anthrax vaccination, and organophosphate pesticide exposure. They paired single-nucleus DNA methylation sequencing with single-nucleus ATAC-seq across seven sorted immune cell types. They identify exposure-associated differentially methylated and accessible regions, and show the two layers often shift together. Exposure-linked regions are enriched at enhancers, while genotype-associated regions skew toward gene bodies. Overall, the atlas provides single-cell, multi-layer epigenomic reference maps. The study also links methylation QTLs to disease GWAS signals in specific cell types. (Nature)

Lamin A/C Routes Cysteine Metabolism Into Epigenome Reprogramming: A Nature Metabolism study connects cellular fuel flow to epigenetic “writing” by showing that lamin A/C helps route cysteine catabolism into epigenome remodeling. Lamin A/C, best known as a nuclear scaffold protein, was found to regulate cysteine catabolic flux, changing the availability of metabolites that supply epigenetic marks such as methylation and acetylation. When that routing shifts, the authors observe epigenomic reprogramming and corresponding changes in stem-cell fate programs. The work reframes the nucleus as an active coordinator of metabolism and chromatin state: by regulating metabolic gene expression and pathway flux, a structural nuclear factor can indirectly reshape the chemical inputs that govern gene regulation. The result helps explain how cells translate nutrient and redox conditions into stable, heritable differences in transcriptional potential. (Nature)

An Epigenetic Switch That Tips Fat Cells Toward Brown or White: Research highlighted by Phys.org describes an epigenetic switch that influences whether developing adipocytes become brown fat (energy-burning) or white fat (energy-storing). Rather than altering DNA sequence, the mechanism acts through gene-regulatory control—chromatin settings that decide which metabolic and developmental programs are turned on as precursors mature. Because the brown-versus-white balance helps determine how efficiently the body burns calories, produces heat, and stores lipids, the findings point to a developmental “set point” for obesity risk. The study’s value is conceptual as much as therapeutic: it shows how epigenetic decisions made early in cell differentiation can echo into whole-body physiology. In the longer run, pinpointing the switch’s molecular machinery could suggest strategies to bias fate decisions, complementing drugs that target appetite or metabolism downstream. (phys.org)

FDA Clears First Human Trial of Partial Epigenetic Reprogramming for Vision Loss: Life Biosciences reports FDA clearance of an Investigational New Drug (IND) application for ER-100, enabling a Phase 1 first-in-human study in optic neuropathies including open-angle glaucoma and non-arteritic anterior ischemic optic neuropathy (NAION). These disorders damage retinal ganglion cells and can cause permanent vision loss. ER-100 is built on partial epigenetic reprogramming: controlled expression of three Yamanaka factors—OCT4, SOX2, and KLF4 (OSK)—to reset gene-regulatory programs toward a more youthful state without changing DNA sequence. The company says the approach is designed to avoid full cellular dedifferentiation while restoring function-relevant gene expression patterns, citing preclinical support including nonhuman primate work. If the trial succeeds, it would be a pivotal test of whether targeted epigenetic “age reset” can translate into clinically meaningful neuroprotection or recovery in the human eye. (GlobeNewswire)

An “Ice-Cold Earth” Shows Why Size Isn’t Destiny: NASA’s latest “Discovery Alert” spotlights an Earth-size-ish exoplanet that appears far colder than Earth, a reminder that radius alone doesn’t predict habitability. The article walks through the chain of inference: a transit dip reveals planetary size, while the host star’s luminosity and the planet’s orbital distance set the energy budget the planet receives. Here, the estimated insolation implies a frigid world, likely dominated by ice. NASA notes that cold terrestrial planets still matter scientifically because they broaden the census of rocky worlds and help test theories of planet formation, atmospheric loss, and climate evolution across very different energy regimes. Even when conditions look inhospitable, each well-characterized planet becomes another anchor point for understanding how common “Earth-sized” planets are—and how diverse their climates can be directly. (NASA Science)

Webb Pushes the Cosmic Frontier to 280 Million Years After the Big Bang: NASA reports that the James Webb Space Telescope has detected a galaxy seen only about 280 million years after the Big Bang, pushing observations closer to cosmic dawn than before. Such early galaxies are built from the first generations of stars, so every confirmed detection constrains how quickly structure assembled, how fast star formation ramped up, and when heavier elements and dust started to appear. The report emphasizes Webb’s infrared advantage: as the universe expands, early light is stretched to longer wavelengths that older telescopes struggled to capture. Finding unexpectedly developed systems so early can force revisions to timelines for galaxy growth, feedback, and reionization. As Webb adds more ultra-early galaxies, the start of galaxy formation becomes something we can date observationally with tighter bounds. (NASA Science)