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Journal of Clinical and
            Basic Psychosomatics                                                   The antidepressant effect of ketamine




            Table 1. (Continued)                               Table 1. (Continued)
            Neurobiological markers  Biomarkers and reference  Neurobiological markers  Biomarkers and reference
             Brain function    Decrease FC in ventral limbic nodes 17             Increase the expression levels of dopamine
                               Increase FC between subcortical and                receptors in PFC and hippocampus 62
                               cortical nodes 17                                  Increase the firing activity of dopaminergic
                               Increase FC between the DMN and the                and noradrenergic neurons 63
                               insula as well as with frontal, parietal,   Inflammatory cytokines  Decrease IL-6 level in the blood 67
                               and occipital cortices 18                          Low IL-8 levels at baseline responded
                               Decrease FC within the intrinsic                   better to ketamine treatment 70
                               cognitive control network 92                       Decrease the neutrophil-to-lymphocyte
                               Decrease FC between bilateral dACC/                ratio 71
                               dlPFC and left superior parietal cortex 92  Genetic markers  Alter the expression of the clock gene 74
                               Increase FC between right central                  BDNF Val66Met polymorphism 75,76
                               executive network-amygdala connectivity 20
                                                                                  Ketamine has multi-target
                               Increase GBCr in dlPFC 21,22                       pharmacological properties and is
                               Increase FC of sgACC with insula as well           similar to the transcriptional profiles of
                               as caudate, but decreased FC with DMN 17           monoaminergic antidepressants 77
                               Increased FC between sgACC and SMA                 CYP450 gene 78
                               as well as dlPFC 23              Other markers     High level of BDNF 81,83
                               Decreased FC between sgACC and right               Increase FC of dorsomedial PFC
                               amygdala 24,25                                     associated with the alteration of BDNF 82
                               Decrease FC between amygdala and                   Decrease plasma KYN level 85,87
                               insula as well as temporal cortex 26
                                                                                  Increase serum kynurenic acid
                               Increase frontostriatal connectivity 27-29         (a protective metabolite of KYN) and
                               Increase FC between the habenula and               reduce the level of quinolinic acid
                               right dlPFC 30                                     (a toxic metabolite of KYN) 86
                               Increase FC between right habenula and             klotho gene 88
                               occipital-temporal cortex as well as para-         Vascular endothelial growth factor 89
                               hippocampal gyrus 31
                                                                                  Promote the differentiation of
             Neuroelectrophysiological  EEG analysis revealed significant changes   oligodendrocyte precursor cells and
             markers           in α, θ, and low-β frequency bands                 increase myelin formation 90
                               during ketamine treatment 33
                                                               Abbreviations: 5-HT: 5-hydroxytryptamine; AMPA: Alpha-amino-
                               Increased long-term potentiation 35
                                                               3-hydroxy-5-methyl-4-isoxazolpropionic acid; BDNF: Brain-derived
                               Increase SWA 37-39              neurotrophic factor; CBF: Cerebral blood flow; dACC: Dorsal anterior
            Neurobiochemical markers                           cingulate cortex; dlPFC: Dorsolateral prefrontal cortex; DMN:  Default
                                                               mode network; EEG: Electroencephalogram; FA: Fractional
             Glutamatergic     Elevate the glutamate levels in PFC 44-46  anisotropy; FC: Functional connectivity; GBCr: Global regression;
             neurotransmitters  Increase the plasma d-serine    IL:  Interleukin; KYN: Kynurenine; NMDA: N-methyl-D-aspartate;
                               (an endogenous co-agonist of the NMDA   PFC: Prefrontal cortex; sgACC: Subgenual anterior cingulate cortex;
                               receptor) concentration 50      SMA:  Supplementary motor area; SWA: Sleep slow wave activity.
                               High levels of SHANK3 (a regulatory
                               protein of NMDA receptor) at    Acknowledgments
                               baseline could predict the response to
                               ketamine 51                     None.
                               Increase the ratio of AMPA receptors in
                               the hippocampus 52              Funding
                               Decrease the ligand binding of mGluR5,   This work was supported by the National Natural Science
                               a metabolic glutamatergic receptor 55,56  Foundation of China (grant number: 81971570 awarded
            Monoamine pathway  Increase the levels of extracellular serotonin,   to Yonggui Yuan; 81801349 awarded to Yingying Yin) for
                               dopamine and norepinephrine of PFC 58  literature search, and the Natural Science Foundation of
                               Increase the binding force of the 5-HT1B   Jiangsu Province (grant number: BK20180373 awarded to
                               receptor and 5-HT transporter 59
                                                               Yingying Yin) for the analysis and interpretation of data
                                                   (Cont'd...)  for the paper’s publication.


            Volume 2 Issue 3 (2024)                         8                               doi: 10.36922/jcbp.2596
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