Increased oxidative stress as a mechanism for decreased BDNF levels in acute manic episodes
OBJECTIVE AND METHOD: There is a growing amount of data indicating that alterations in brain-derived neurotrophic factor and increased oxidative stress may play a role in the pathophysiology of bipolar disorder. In light of recent evidence demonstrating that brain-derived neurotrophic factor levels are decreased in situations of increased oxidative stress, we have examined the correlation between serum thiobarbituric acid reactive substances, a measure of lipid peroxidation, and serum brain-derived neurotrophic factor levels in bipolar disorder patients during acute mania and in healthy controls. RESULTS: Serum thiobarbituric acid reactive substances and brain-derived neurotrophic factor levels were negatively correlated in bipolar disorder patients (r = -0.56; p = 0.001), whereas no significant correlation was observed in the control group.. CONCLUSION: These results suggest that alterations in oxidative status may be mechanistically associated with abnormal low levels of brain-derived neurotrophic factor observed in individuals with bipolar disorder.
Main Authors: | Kapczinski,Flávio, Frey,Benício N, Andreazza,Ana C, Kauer-Sant'Anna,Márcia, Cunha,Ângelo B M, Post,Robert M |
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Format: | Digital revista |
Language: | English |
Published: |
Associação Brasileira de Psiquiatria
2008
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Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-44462008000300011 |
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