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Rybakowski, J.K. et al.

Janusz K. Rybakowski, Maria Skibinska, Aleksandra Suwalska, Anna Leszczynska-Rodziewicz, Leszek Kaczmarek, Joanna Hauser,

Functional polymorphism of matrix metalloproteinase-9 (MMP-9) gene and response to lithium prophylaxis in bipolar patients.

OBJECTIVE: Matrix metalloproteinase 9 (MMP-9) has been implicated in a number of pathological conditions including cancer and heart diseases, and recently also in such neuropsychiatric disorders as schizophrenia and bipolar illness. Therefore, we investigated a possible association between functional polymorphisms of the MMP-9 gene and the response to lithium, the main mood-stabilizing drug in bipolar illness. METHODS: One hundred and nine bipolar patients treated with lithium for at least 5 years were analyzed. The lithium response was assessed as-excellent: no affective episodes during lithium treatment; partial: 50% or more reduction in the episode index; no response: less than 50% reduction, no change or worsening in the episode index. The -1562C/T MMP-9 gene polymorphism (rs3918242) was assessed by PCR-RFLP method. RESULTS: Genotype distributions were not in Hardy-Weinberg equilibrium. No association was found between polymorphism studied and the quality of response to prophylactic lithium administration. CONCLUSION: The functional polymorphism of the MMP-9 gene, analyzed in this study, may not be associated with the treatment response to lithium in bipolar patients. Copyright © 2011 John Wiley & Sons, Ltd.[1]

References

Functional polymorphism of matrix metalloproteinase-9 (MMP-9) gene and response to lithium prophylaxis in bipolar patients. Rybakowski, J.K., Skibinska, M., Suwalska, A., Leszczynska-Rodziewicz, A., Kaczmarek, L., Hauser, J. Hum. Psychopharmacol (2011) [Pubmed]

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