Evaluation of plasma levels of BDNF in patients with disorder depressive

G Cusumano,D Galletta,A Santoro,C Mazzarino

doi:10.1192/j.eurpsy.2021.898

Abstract

IntroductionAccording to the World Health Organization (WHO, 2017) depressive disorder continues to be the most widespread and growing mental illness in the world, also assumes that in 2020 depression will have a prevalence equal to one in six individuals. Studies of neuroanatomy have highlighted structural alterations in the hippocampus, striatal nuclei and prefrontal cortex in patients with mood disorders. This alteration in depressed patients is closely related to the secretion of neurotrophic factors, in particular there is a reduction in BDNF (Brain Derived Neurotrophic Factor).ObjectivesThe objective of this study is to demonstrate which treatments are effective in reducing depressive symptoms that allow the increase of BDNF and consequently the structural homostaticity of the brain.MethodsWe have selected data from the literature of the last decade, collected on major search engines such as: Google Scholar, Research Gate, PubMed, Ebsco. Articles collected by selecting the following Keyword: depression, BDNF (Brain Derived Neurotrophic Factor), neuroimaging cognitive behavior therapy.ResultsThe results show that in patients treated with a single drug treatment or vagus nerve stimulation, repetitive transcranial magnetic stimulation (Lang et al., 2008) or electroconvulsive therapy had improvements in BDNF levels, although compared to drug treatment there are problems of no responders, no compliance and lack of effectiveness in reducing vulnerability to relapse. In addition, the study has shown that patients treated with cognitive behavioral therapy have reported greater changes in the frontal and temporal cortex reducing both depressive symptoms and the risk of relapse.ConclusionsUnderlines the importance of an integrated approach

Highlights

MIJ821 is a novel N-methyl-D-aspartate (NMDA) receptor antagonist, with a potentially low rate of the psychotomimetic side effects that limit the therapeutic utility of ketamine in treatment-refractory depression (TRD)
Studies of neuroanatomy have highlighted structural alterations in the hippocampus, striatal nuclei and prefrontal cortex in patients with mood disorders. This alteration in depressed patients is closely related to the secretion of neurotrophic factors, in particular there is a reduction in BDNF (Brain Derived Neurotrophic Factor)
The objective of this study is to demonstrate which treatments are effective in reducing depressive symptoms that allow the increase of BDNF and the structural homostaticity of the brain

Summary

Introduction

Introduction: MIJ821 is a novel N-methyl-D-aspartate (NMDA) receptor antagonist, with a potentially low rate of the psychotomimetic side effects that limit the therapeutic utility of ketamine in treatment-refractory depression (TRD). Methods: Adults with TRD (>2 prior treatment failures; Montgomery-Asberg Depression Rating Scale [MADRS], >24) were eligible and were randomized (n=70) to low versus high doses of MIJ821, with two dosing regimens of weekly or biweekly, versus ketamine versus placebo. Results: At 24 hours, adjusted mean differences (ΔAM) versus placebo were –8.25 (p=0.001), –5.71 (p=0.019) and –5.67 (p=0.046) and at 48 h were –7.06 (p=0.013), –7.37 (p=0.013), – 11.02 (p=0.019) in the pooled MIJ821 low dose, high dose, and ketamine groups, respectively.

Objectives

Results

Conclusion