Part of this data was published in AS thesis (Stomby, 2015) and as the abstract “Increased Hippocampal Activity after a Lifestyle Intervention in Type 2 Diabetes -Brain-Derived Neurotrophic Factor As a Potential Mediator” at the Endocrine Society's annual conference 2016, Boston, MA, USA. Here, BDNF is linked to type 2 diabetes mellitus.