Chapter 3

Genetics of Treatment-resistant Depression

Chiara Fabbri

Chiara Fabbri

Department of Biomedical and NeuroMotor Sciences, University of Bologna, Bologna, Italy

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Stefano Porcelli

Stefano Porcelli

Department of Biomedical and NeuroMotor Sciences, University of Bologna, Bologna, Italy

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Alessandro Serretti

Alessandro Serretti

Department of Biomedical and NeuroMotor Sciences, University of Bologna, Bologna, Italy

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Siegfried Kasper MD

Siegfried Kasper MD

Professor and Chair, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna Austria

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Stuart Montgomery MD

Stuart Montgomery MD

Emeritus Professor of Psychiatry Professor of Psychiatry (retired), Imperial College of Science, Technology and Medicine, University of London, London UK

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First published: 05 February 2013
Citations: 1

Summary

Gene variants influence the clinical outcomes of antidepressant treatments, explaining 50% of the variance. In particular, treatment-resistant depression (TRD) is a cause of considerable societal burden and would greatly benefit from the identification of genetic predictors. The most promising genes for association with TRD are SLC6A4, 5-HTR1A, COMT, BDNF and CREB1, but further work is needed in order to translate findings into clinical recommendations. Indeed, the complex nature of major depression and antidepressant response make the picture complex to dissect. Nonetheless, hopefully in a few years, genetic prediction of TRD could become a widespread clinical reality.

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