Analysis of glucose metabolism by 18F-FDG-PET imaging and glucose transporter expression in a mouse model of intracerebral hemorrhage

Sci Rep. 2021 May 25;11(1):10885. doi: 10.1038/s41598-021-90216-4.

Abstract

The relationship between cerebral glucose metabolism and glucose transporter expression after intracerebral hemorrhage (ICH) is unclear. Few studies have used positron emission tomography (PET) to explore cerebral glucose metabolism after ICH in rodents. In this study, we produced ICH in mice with an intrastriatal injection of collagenase to investigate whether glucose metabolic changes in 18F-fluoro-2-deoxy-D-glucose (FDG)-PET images are associated with expression of glucose transporters (GLUTs) over time. On days 1 and 3 after ICH, the ipsilateral striatum exhibited significant hypometabolism. However, by days 7 and 14, glucose metabolism was significantly higher in the ipsilateral striatum than in the contralateral striatum. The contralateral hemisphere did not show hypermetabolism at any time after ICH. Qualitative immunofluorescence and Western blotting indicated that the expression of GLUT1 in ipsilateral striatum decreased on days 1 and 3 after ICH and gradually returned to baseline by day 21. The 18F-FDG uptake after ICH was associated with expression of GLUT1 but not GLUT3 or GLUT5. Our data suggest that ipsilateral cerebral glucose metabolism decreases in the early stage after ICH and increases progressively in the late stage. Changes in 18F-FDG uptake on PET imaging are associated with the expression of GLUT1 in the ipsilateral striatum.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cerebral Hemorrhage / chemically induced
  • Cerebral Hemorrhage / diagnostic imaging*
  • Cerebral Hemorrhage / genetics
  • Cerebral Hemorrhage / metabolism
  • Collagenases / adverse effects
  • Corpus Striatum / metabolism
  • Disease Models, Animal
  • Fluorodeoxyglucose F18 / administration & dosage
  • Gene Expression Regulation
  • Glucose / metabolism*
  • Glucose Transporter Type 1 / genetics
  • Glucose Transporter Type 1 / metabolism*
  • Glucose Transporter Type 3 / genetics
  • Glucose Transporter Type 3 / metabolism*
  • Glucose Transporter Type 5 / genetics
  • Glucose Transporter Type 5 / metabolism*
  • Male
  • Mice
  • Positron Emission Tomography Computed Tomography

Substances

  • Glucose Transporter Type 1
  • Glucose Transporter Type 3
  • Glucose Transporter Type 5
  • Slc2a1 protein, mouse
  • Slc2a3 protein, mouse
  • Slc2a5 protein, mouse
  • Fluorodeoxyglucose F18
  • Collagenases
  • Glucose