scholarly journals Abnormalities in Electroencephalographic Microstates Among Adolescents With First Episode Major Depressive Disorder

2021 ◽  
Vol 12 ◽  
Author(s):  
Yuqiong He ◽  
Qianting Yu ◽  
Tingyu Yang ◽  
Yaru Zhang ◽  
Kun Zhang ◽  
...  

Background: Recent studies have reported changes in the electroencephalograms (EEG) of patients with major depressive disorder (MDD). However, little research has explored EEG differences between adolescents with MDD and healthy controls, particularly EEG microstates differences. The aim of the current study was to characterize EEG microstate activity in adolescents with MDD and healthy controls (HCs).Methods: A total of 35 adolescents with MDD and 35 HCs were recruited in this study. The depressive symptoms were assessed by Hamilton Depression Scale (HAMD) and Children's Depression Inventory (CDI), and the anxiety symptoms were assessed by Chinese version of DSM-5 Level 2-Anxiety-Child scale. A 64-channel EEG was recorded for 5 min (eye closed, resting-state) and analyzed using microstate analysis. Microstate properties were compared between groups and correlated with patients' depression scores.Results: We found increased occurrence and contribution of microstate B in MDD patients compared to HCs, and decreased occurrence and contribution of microstate D in MDD patients compared to HCs. While no significant correlation between depression severity (HAMD score) and the microstate metrics (occurrence and contribution of microstate B and D) differing between MDD adolescents and HCs was found.Conclusions: Adolescents with MDD showed microstate B and microstate D changes. The obtained results may deepen our understanding of dynamic EEG changes among adolescents with MDD and provide some evidence of changes in brain development in adolescents with MDD.

2015 ◽  
Vol 28 (1) ◽  
pp. 45-50 ◽  
Author(s):  
Bun-Hee Lee ◽  
Jin-Pyo Hong ◽  
Jung-A Hwang ◽  
Kyoung-Sae Na ◽  
Won-Joong Kim ◽  
...  

BackgroundSome clinical studies have reported reduced peripheral glial cell line-derived neurotrophic factor (GDNF) level in elderly patients with major depressive disorder (MDD). We verified whether a reduction in plasma GDNF level was associated with MDD.MethodPlasma GDNF level was measured in 23 healthy control subjects and 23 MDD patients before and after 6 weeks of treatment.ResultsPlasma GDNF level in MDD patients at baseline did not differ from that in healthy controls. Plasma GDNF in MDD patients did not differ significantly from baseline to the end of treatment. GDNF level was significantly lower in recurrent-episode MDD patients than in first-episode patients before and after treatment.ConclusionsOur findings revealed significantly lower plasma GDNF level in recurrent-episode MDD patients, although plasma GDNF levels in MDD patients and healthy controls did not differ significantly. The discrepancy between our study and previous studies might arise from differences in the recurrence of depression or the ages of the MDD patients.


2006 ◽  
Vol 28 (1) ◽  
pp. 40-43
Author(s):  
Elisabeth Maria Sene Costa ◽  
Rosilda Antonio ◽  
Márcia Britto de Macedo Soares ◽  
Ricardo Alberto Moreno

OBJETIVE: Recent literature has highlighted the role of psychotherapy in the treatment of major depressive disorder. Combined therapies comprising both psychotherapy and pharmacotherapy have presented the best results. Although several kinds of psychotherapies have been studied in the treatment of depressive disorders, there remains a lack of data on psychodramatic psychotherapy in the treatment of major depressive disorder. The objective of this study was to evaluate the impact of psychodramatic psychotherapy (in a sample of major depressive disorder patients. METHOD: This is an open, naturalistic, controlled, non-randomized study. Twenty major depressive disorder patients (according to the DSM-IV criteria), under pharmacological treatment for depression, with Hamilton Depression Scale total scores between 7 and 20 (mild to moderate depression), were divided into two groups. Patients in the psychotherapeutic group took part in 4 individual and 24 structured psychodramatic group sessions, whilst subjects in the control group did not participate in this psychodramatic psychotherapy. Both groups were evaluated with the Social Adjustment Scale - Self Report and the Hamilton Depression Scale. RESULTS: Psychotherapeutic group patients showed a significant improvement according to the Social Adjustment Scale - Self Report and the Hamilton Depression Scale scores at endpoint, compared to those of the control group. CONCLUSIONS: Results suggest that individual and group psychodramatic psychotherapy, associated to pharmacological treatment, provides good clinical benefits in the treatment of major depressive disorder.


2021 ◽  
Vol 15 ◽  
Author(s):  
Yao Yao Li ◽  
Xiao kang Ni ◽  
Ya feng You ◽  
Yan hua Qing ◽  
Pei rong Wang ◽  
...  

Anxious major depressive disorder is a common subtype of major depressive disorder; however, its unique neural mechanism is not well-understood currently. Using multimodal MRI data, this study examined common and specific alterations of amygdala subregions between patients with and without anxiety. No alterations were observed in the gray matter volume or intra-region functional integration in either patient group. Compared with the controls, both patient groups showed decreased functional connectivity between the left superficial amygdala and the left putamen, and between the right superficial amygdala and the bilateral anterior cingulate cortex and medial orbitofrontal cortex, while only patients with anxiety exhibited decreased activity in the bilateral laterobasal and superficial amygdala. Moreover, the decreased activity correlated negatively with the Hamilton depression scale scores in the patients with anxiety. These findings provided insights into the pathophysiologic processes of anxious major depressive disorder and may help to develop new and effective treatment programs.


2019 ◽  
Vol 3 ◽  
pp. 247054701984937 ◽  
Author(s):  
Darren Roddy ◽  
Veronica O’Keane

Commentary on: Roddy DW, Farrell C, Doolin K, Roman E, Tozzi L, Frodl T, O'Keane V, O'Hanlon E. The Hippocampus in Depression: More Than the Sum of Its Parts? Advanced Hippocampal Substructure Segmentation in Depression. Biol Psychiatry. 2019 Mar 15;85(6):487-497. doi: 10.1016/j.biopsych.2018.08.021. Epub 2018 Sep 6. PubMed PMID: 30528746. The hippocampus is a key cognitive hub implicated in major depressive disorder. However, major depressive disorder neuroimaging studies have used inconsistent anatomical hippocampal definitions to estimate hippocampal volumes, leading to some heterogeneity in findings. In a recent paper, we used a novel reassembly of automated hippocampal substructures (composites) to build alternative anatomical hippocampal definitions and used these to investigate differences in a well-defined cohort of major depressive disorder patients and healthy controls. We found that the most significant differences between major depressive disorder and healthy controls were localized to the core cornu ammonis (CA) regions of the hippocampus. The CA2–4 regions were smaller in first episode major depressive disorder, whereas more widespread differences were found in recurrent/chronic major depressive disorder, suggestive of a potential disease process in major depressive disorder. In this commentary, we also show how new hippocampal composites to investigate sections of the hippocampal circuitry demonstrate that differences in major depressive disorder occur across the input, middle and output circuit nodes of the hippocampal core. Hippocampal pathology localized across the core hippocampal CA circuity may account for the diverse and wide-ranging symptoms often experienced in depression.


2021 ◽  
Vol 12 ◽  
Author(s):  
Qi Zhang ◽  
Yajun Yun ◽  
Huimei An ◽  
Wenxuan Zhao ◽  
Ting Ma ◽  
...  

The microbiota–gut–brain axis plays a critical role in the pathogenesis of major depressive disorder (MDD) and related subclinical symptoms. However, studies on the gut microbiota in MDD are inconsistent, and data on MDD's effects on sleep are lacking. This study aimed to analyze the gut microbiota composition and sleep quality of patients with MDD. We performed 16S rRNA sequencing of stool samples from 36 patients with MDD and 45 healthy controls (HC). Sleep quality was assessed using the Pittsburgh Sleep Quality Index, depressive severity with the Hamilton Depression Scale, and insomnia severity using the Insomnia Severity Index. Forty-eight microbiota targets showed significant differences between MDD and HC. In MDD, six microbiota targets were associated with the severity of depression, 11 with sleep quality, and 3 with sleep severity. At the genus level, Dorea was simultaneously related to depression and sleep quality, while Intestinibacter was more closely related to sleep problems. Coprococcus and Intestinibacter were associated with sleep quality independent of the severity of depression. In conclusion, the present findings enable a better understanding of the relationship between gut microbiota and MDD-related symptoms. Gut microbiota alterations may become potential biomarkers and/or treatment targets for sleep quality in MDD.


2021 ◽  
Author(s):  
Lu Yin ◽  
Ting-Ting Wang ◽  
Yan-Yan Wei ◽  
Li-Gang Zhang ◽  
Shuang-Jiang Zhou ◽  
...  

Abstract Background Suicide risk is associated with depression. Affective temperaments may play a role in this risk. We explored the relationship between affective temperaments and suicide and identified some traits that can predict suicide risk in depression. Methods We analyzed the results of Temperament Evaluation of the Memphis, Pisa, Paris, and San Diego Auto-questionnaire (TEMPS-A) in 284 participants recruited from a psychiatric clinic and the community in Beijing and compared the subscale scores (cyclothymic, dysthymic, anxious, irritable and hyperthymic) among major depressive disorder (MDD) versus the general population as well as depressive patients with versus without suicide risk, using student’s test, Chi-square test, rank sum test, multivariable regression modeling and receiver operating characteristic (ROC) analysis. Results The incidence of suicidal risk in depressive subjects was 47.62% (80/168). Being unmarried (P<0.001), unemployment (P=0.007) and temperaments of dysthymic, cyclothymic, anxious, and irritable scores (all P<0.05) were significantly more prevalent in depressive patients than in the general population. A young age (P<0.001), female sex (P=0.037), being unmarried (P=0.001), more severe depression (P<0.001), and dysthymic, anxious and cyclothymic temperament (all P<0.05) were significantly more prevalent in depressive disorder patients with suicide risk than in those without suicide risk. The logistic regression analysis showed that younger age (OR=0.937, 95% CI 0.905~0.970), female sex (OR=2.606, 95% CI 1.142~5.948), more severe depression (OR=1.145, 95% CI 1.063~1.234), cyclothymic temperament (OR=1.275, 95% CI 1.102~1.475) and dysthymic temperament (OR=1.265, 95% CI 1.037~1.542) were all independently associated with high suicidal risk in first-episode major depressive patients (P<0.05). By ROC analysis, the area under the compound factor (age, sex, HAMD score without the 3rd item, cyclothymic and dysthymic temperament) was 0.853 (95% CI 0.790~0.903). Conclusion The suicide rate in first-episode neuroleptic-naïve major depressive disorder (MDD) subjects was higher than we thought. Temperament traits differ between the general population and those with major depressive disorder. Major depressive disorder subjects with much more severe depressive symptoms and cyclothymic or dysthymic temperament were at high risk of suicide. Compound factors (age, sex, HAMD score without the 3rd item, cyclothymic and dysthymic temperament score) could be predictors of suicide risk in the clinic.


SLEEP ◽  
2020 ◽  
Vol 43 (11) ◽  
Author(s):  
Wei-Feng Mi ◽  
Serik Tabarak ◽  
Li Wang ◽  
Su-Zhen Zhang ◽  
Xiao Lin ◽  
...  

Abstract To investigate effects of agomelatine and mirtazapine on sleep disturbances in patients with major depressive disorder. A total of 30 depressed patients with sleep disturbances, 27 of which completed the study, took agomelatine or mirtazapine for 8 weeks. Subjective scales were administered, and polysomnography was performed at baseline and at the end of week 1 and 8. Functional magnetic resonance imaging was performed at baseline and at the end of week 8. Compared with baseline, scores on the Hamilton Depression Scale, Hamilton Anxiety Scale, Pittsburgh Sleep Quality Index, Sleep Dysfunction Rating Scale, and Insomnia Severity Index after 8 weeks of treatment significantly decreased in both groups, with no significant differences between groups, accompanied by significant increases in total sleep time, sleep efficiency, and rapid eye movement (REM) sleep and significant decrease in wake after sleep onset. Mirtazapine treatment increased N3 sleep at week 1 compared with agomelatine treatment, but this difference disappeared at week 8. The increases in the percentage and duration of N3 sleep were positively correlated with increases in connectivity between right dorsal lateral prefrontal cortex (dlPFC) and right precuneus and between left posterior cingulate cortex and right precuneus in both groups, respectively. Functional connectivity (FC) between right dlPFC and left precuneus in mirtazapine group was higher compared with agomelatine group after 8 weeks of treatment. These findings indicated that both agomelatine and mirtazapine improved sleep in depressed patients, and the effect of mirtazapine was greater than agomelatine with regard to rapidly increasing N3 sleep and gradually improving FC in the brain.


2009 ◽  
Vol 21 (1) ◽  
pp. 11-17 ◽  
Author(s):  
Hwa-Young Lee ◽  
Rhee-Hun Kang ◽  
Sang-Woo Han ◽  
Jong-Woo Paik ◽  
Hun Soo Chang ◽  
...  

Objective:Major depressive disorder (MDD) is closely related to stress reactions and serotonin probably underpins the pathophysiology of MDD. Alterations of the hypothalamic-pituitary-adrenal axis at the gene level have reciprocal consequences on serotonin neurotransmission. Glucocorticoid receptor (GR) polymorphisms affect glucocorticoid sensitivity, which is associated with cortisol feedback effects. Therefore, we hypothesised that GR polymorphisms are associated with the susceptibility to MDD and predict the treatment response.Method:Ninety-six subjects with a minimum score of 17 on the 21-item Hamilton Depression Scale (HAMD) at baseline were enrolled into the present study. The genotypes of GR (N363S, ER22/23EK, Bcl1, and TthIII1 polymorphisms) were analysed. The HAMD score was again measured after 1, 2, 4 and 8 weeks of antidepressant treatment to detect whether the therapeutic effects differed with the GR genotype.Results:Our subjects carried no N363S or ER22/23EK genetic polymorphisms and three types of Bcl1 and TthIII1 genetic polymorphisms. The C/C genotype and C allele at Bcl1 polymorphism were more frequent in MDD patients than in normal controls (p < 0.01 and p = 0.01, respectively). The genotype distributions did not differ significantly between responders and non-responders.Conclusion:These results suggest that GR polymorphism cannot predict the therapeutic response after antidepressant administration. However, GR polymorphism (Bcl1) might play a role in the pathophysiology of MDD. Future studies should check this finding in larger populations with different characteristics.


2021 ◽  
Vol 11 ◽  
Author(s):  
Qi Zheng ◽  
Mei Liao ◽  
Bangshan Liu ◽  
WenWen Ou ◽  
WenTao Chen ◽  
...  

Objective: To explore the emotional characteristics of counterfactual thinking (CT)-related emotion responses in patients with major depressive disorder (MDD) via the “counterfactual thinking gambling task (CTGT).”Method: Twenty-five patients with MDD (the MDD group) and twenty-five healthy controls (the HC group) with matched demographic features were included. The 17-item Hamilton Depression Scale (HAMD) and the 14-item Hamilton Anxiety Rating Scale (HAMA) were used to assess the severity of depression and anxiety symptoms. The counterfactual thinking gambling task was applied to assess the situation-focused- and behavior-focused-CT-related emotion responses in the MDD group and the HC group.Results: There was no significant difference in general demographic data between the two groups (p &gt; 0.05). Compared with the HC group, the MDD group experienced higher levels of “disappointment” and lower levels of “joy” in the situation-focused CT paradigm (p &lt; 0.05). However, the experience of “regret” and “relief” in the behavior-focused CT paradigm were not significantly different between the two groups (p &gt; 0.05).Conclusions: MDD is associated with an impaired situation-focused-CT-related emotion responses, and is often accompanied by increased disappointment and decreased joy; however, behavior-focused-CT-related emotion responses are not significantly affected in MDD. This pattern may represent the characteristic CT-related emotion responses of MDD.


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