Correlation of Hexokinase Content and Basal Energy Metabolism in Discrete Regions of Rat Brain

Abstract
Brain hexokinase (ATP:D-hexose 6-phosphotransferase, EC 2.7.1.1) levels in seven regions of rat brain were estimated by photometric measurement of immunofluorescence in cryostat-cut sections. When compared with basal rates of glucose metabolism in these regions, estimated by the 6-[14C]glucose method, a significant correlation was observed. Thus, hexokinase content reflects metabolic energy demands.