The brain response to peripheral insulin declines with age: a contribution of the blood-brain barrier?
PLoS ONE (2015) - Comment
pubmed: 25965336  doi: 10.1371/journal.pone.0126804  issn: 1932-6203 

Tina Sartorius, Andreas Peter, Martin Heni, Walter Maetzler, Andreas Fritsche, Hans-Ulrich Häring, Anita M. Hennige