- Glucose transporter proteins GLUT1 and GLUT3 like immunoreactivities in the fetal sheep brain are not reduced by maternal betamethasone treatment. Antonow-Schlorke, I., Ebert, M., Müller, T., Schubert, H., Gschanes, A., Witte, O.W., Nathanielsz, P.W., Schwab, M. Neurosci. Lett. (2006)