Blood-brain transfer and antinociception of linear and cyclic N-methyl-guanidine and thiourea-enkephalins

Mathieu Verbeken, Evelien Wynendaele, Elodie Mauchauffee, Nathalie Bracke, Sofie Stalmans, Engin Bojnik, Sandor Benyhe, Kathelijne Peremans, Ingeborgh Polis, Christian Burvenich, Albert Gjedde, Jean-Francois Hernandez, Bart De Spiegeleer