People with diabetes take insulin to lower high blood sugar. However, if glucose levels plunge too low—from taking too much insulin or not eating enough sugar—people can experience hypoglycemia, which can lead to dizziness, cognitive impairment, seizures or comas. Emergency treatment with the hormone glucagon (GCG) may be needed. Researchers at the University of California, Los Angeles (UCLA) have now developed a method to encapsulate glucagon in glucose-responsive micelles that only release the hormone when blood glucose levels become too low. Tests in mice confirmed that the injected nanocapsules activated only when blood sugar levels dropped dangerously low, and quickly restored glucose levels.

Research leads Andrea Hevener, PhD, Heather Maynard, PhD, and colleagues reported on their developments in ACS Central Science, in a paper titled “A Glucose-Responsive Glucagon-Micelle for the Prevention of Hypoglycemia… Continue reading.