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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Association study of the INPP1, 5HTT, BDNF, AP-2beta and GSK-3beta GENE variants and restrospectively scored response to lithium prophylaxis in bipolar disorder.

In the present study we investigated the influence of a series variants in genes (the serotonin transporter, glycogen synthase kinase-3beta, inositol polyphosphatase 1-phosphate, brain-derived neurotrophic factor and activator protein 2beta) related to the action of lithium carbonate, a drug used for prophylaxis in mood disorders. We used a sample of unrelated patients with bipolar disorder type I on lithium therapy for at least 2 years who met the proposed response criteria for prophylactic response. Of the 134 patients, 61 patients were considered full responders, 49 non-responders and 24 partial responders. No significant differences were observed for the genotype or allele frequencies for good, partial and poor responders for the five gene variants: for BDNF G196A (genotype: chi2 = 3.67, 4 d.f., p = 0.45; allele: chi2 = 2.31, 2 d.f., p = 0.31); for INPP1 C973A (genotype: chi2 = 1.35, 4 d.f., p = 0.85; allele: chi2 = 0.04, 2 d.f., p = 0.98); for AP-2beta [CAAA](4/5) (genotype: chi2 = 3.18; 4 d.f., p = 0.52; allele: chi2 = 0.92, 2 d.f., p = 0.063); for 5HTTLPR (genotype: chi2 = 0.67, 4 d.f., p = 0.96; allele: chi2 = 0.27, 2 d.f., p = 0.87); for GSK-3beta A-1727T (genotype: chi2 = 3.55, 4 d.f., p = 0.47; allele: chi2 = 0.48, 2 d.f., p = 0.78). These investigated variants are not predictive factors for lithium prophylactic response in our sample of bipolar disorder type I patients. However, it is still possible that a subgroup of a diverse ethnic ancestry may be predisposing to some of those variants for lithium response.[1]

References

  1. Association study of the INPP1, 5HTT, BDNF, AP-2beta and GSK-3beta GENE variants and restrospectively scored response to lithium prophylaxis in bipolar disorder. Michelon, L., Meira-Lima, I., Cordeiro, Q., Miguita, K., Breen, G., Collier, D., Vallada, H. Neurosci. Lett. (2006) [Pubmed]
 
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