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Neurotrophic gene polymorphisms and response to psychological therapy

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Lester, K.J., Hudson, J.L., Tropeano, M., Creswell, C., Collier, D.A., Farmer, A., Lyneham, H.J., Rapee, R.M. and Eley , T.C. (2012) Neurotrophic gene polymorphisms and response to psychological therapy. Translational Psychiatry, 2 (e108). ISSN 2158-3188

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To link to this article DOI: 10.1038/tp.2012.33

Abstract/Summary

Therapygenetics, the study of genetic determinants of response to psychological therapies, is in its infancy. Here, we investigate whether single-nucleotide polymorphisms in nerve growth factor (NGF) (rs6330) and brain-derived neutrotrophic factor (BDNF) (rs6265) genes predict the response to cognitive behaviour therapy (CBT). Neurotrophic genes represent plausible candidate genes: they are implicated in synaptic plasticity, response to stress, and are widely expressed in brain areas involved in mood and cognition. Allelic variation at both loci has shown associations with anxiety-related phenotypes. A sample of 374 anxiety-disordered children with white European ancestry was recruited from clinics in Reading, UK, and in Sydney, Australia. Participants received manualised CBT treatment and DNA was collected from buccal cells using cheek swabs. Treatment response was assessed at post-treatment and follow-up time points. We report first evidence that children with one or more copies of the T allele of NGF rs6330 were significantly more likely to be free of their primary anxiety diagnosis at follow-up (OR=0.60 (0.42–0.85), P=0.005). These effects remained even when other clinically relevant covariates were accounted for (OR=0.62 (0.41–0.92), P=0.019). No significant associations were observed between BDNF rs6265 and response to psychological therapy. These findings demonstrate that knowledge of genetic markers has the potential to inform clinical treatment decisions for psychotherapeutic interventions.

Item Type:Article
Refereed:Yes
Divisions:Interdisciplinary centres and themes > Winnicott
Faculty of Life Sciences > School of Psychology and Clinical Language Sciences > Department of Psychology
ID Code:27962
Publisher:Nature

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