aMedical School, University of Exeter, Royal Devon and Exeter Hospital, Exeter, UK

bDepartment of Psychiatry, San Francisco & San Francisco VA Medical Center, University of California, USA

cDepartment of Psychiatry and Mental Health Research, Education and Research Centre, St. Vincent’s University Hospital

dThe UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, UCD School of Medicine and Medical Science, Dublin

eSchool of Biochemistry and Immunology, Trinity College Dublin, Dublin, Ireland

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Correspondence to Therese M. Murphy, PhD, Medical School, University of Exeter, Royal Devon and Exeter Hospital, Exeter EX2 5DW, UK Tel: +44 139 272 6429; e-mail: [email protected]

Received October 21, 2013

Received in revised form May 30, 2014

Accepted September 10, 2014