Bridget M. Kuehn, MSJ JAMA. Published online January 8, 2020. doi:10.1001/jama.2019.20939 Areas or patterns of reduced glucose metabolism are often seen in brain scans of patients with Alzheimer disease and other dementias. Now, a growing body of evidence suggests that glucose hypometabolism may be more than just a biomarker on brain scans: it may be a key...