Tissue-integrated microlasers used to measure contraction in beating heart of zebrafish

Researchers have shown that tiny lasers integrated into heart muscle cells or tissue can be used to acquire high-resolution measurements of contractility in heart muscle cells, live zebrafish and living heart tissue at locations several times deeper than other light-based techniques. The ability to characterize the contractile properties of single cells in the beating heart …

Carbon dioxide levels reflect COVID-19 risk

Tracking carbon dioxide levels indoors is an inexpensive and powerful way to monitor the risk of people getting COVID-19, according to new research from the Cooperative Institute for Research in Environmental Sciences (CIRES) and the University of Colorado Boulder. In any given indoor environment, when excess CO2 levels double, the risk of transmission also roughly …

Crohn’s disease may be caused by immune signaling failure

People with Crohn’s disease are typically treated with powerful anti-inflammatory medications that act throughout their body, not just in their digestive tract, creating the potential for unintended, and often serious, side effects. New research from the lab of Mark Sundrud, Ph.D., at Scripps Research, Florida suggests a more targeted treatment approach is possible.