Barely Significant
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Serum Brain-derived Neurotrophic Factor Levels as a Biomarker of Treatment Response in Patients With Depression: Systematic Review and Meta-analysis.

Actas Esp Psiquiatr · 2025 · PMC12353246 · PMID 40791036

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may not be significantno p-value reported
Different types of antidepressants may affect BDNF expression through different mechanisms, and these effects may not be significant enough in the short term [ 45 ].

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