Article History
Received: 3 February 2016
Revised: 20 June 2016
Accepted: 23 June 2016
First Online: 30 August 2016
Competing interests
: DKL reports grants as a Principal Investigator from the National Institute on Aging, National Institute of Health, USA; Member, Scientific Advisory Board, QR Pharma, Berwyn, PA, USA; Member, Scientific Advisory Board, Yuma Therapeutics, Boston, MA; Member, Scientific Advisory Board, Entia Biosciences, Sherwood, OR; Member, International Advisory Board of the Drug Discovery and Therapy World Congress, Boston, MA; and Editor-in-Chief, ‘Current Alzheimer Research’, Bentham Sciences Publishers. The remaining authors declare no conflict of interest.