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This work examines the biological mechanisms through which stress exposure contributes to depression, exploring individual differences in vulnerability and protective factors. It addresses how neurobiological systems respond to stress and influence depression risk and resilience.
This observational study examined 66 patients with treatment-resistant bipolar depression who received four sub-anesthetic ketamine infusions over two weeks at a Canadian clinic. Significant reductions in depressive symptoms, suicidal ideation, and anxiety were observed, with functional improvements on multiple validated assessment scales.
This case-series documents ten patients with treatment-resistant unipolar depression who had failed conventional antidepressant monotherapy and initial augmentation with standard atypical antipsychotics (aripiprazole, risperidone, or brexpiprazole). The study explores switching to cariprazine as a second-line augmentation strategy, with seven of ten patients showing clinical improvement.
A case report of a 17-year-old female with dystonia whose depressive and psychotic symptoms persisted despite dopaminergic treatment but improved after sertraline addition without motor symptom worsening. The authors emphasize that psychiatric disorders may be intrinsic to dystonia's neurobiology rather than purely secondary, highlighting the importance of early detection and integrated treatment approaches.
This study measured plasma neurofilament light chain (NfL) levels using advanced SIMOA technology in 15 major depressive disorder patients and 15 healthy controls to investigate whether NfL is altered in depression. The researchers found no significant difference in NfL plasma levels between groups and no correlation with depression severity measures, though age showed positive correlation with NfL in both groups.