Plasma glial cell line-derived neurotrophic factor in patients with major depressive disorder: a preliminary study

2015 ◽  
Vol 28 (1) ◽  
pp. 45-50 ◽  
Author(s):  
Bun-Hee Lee ◽  
Jin-Pyo Hong ◽  
Jung-A Hwang ◽  
Kyoung-Sae Na ◽  
Won-Joong Kim ◽  
...  
Keyword(s):  
Major Depressive Disorder ◽  
Depressive Disorder ◽  
Cell Line ◽  
Glial Cell ◽  
Neurotrophic Factor ◽  
Recurrent Episode ◽  
First Episode ◽  
Healthy Controls ◽  
Major Depressive ◽  
Before And After

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.

scholarly journals Evaluation of Serum Glial Cell Line-derived Neurotrophic Factor in Bangladeshi Major Depressive Disorder Patients

Cureus ◽  
2019 ◽  
Author(s):  
Rajesh Das ◽  
Md Prova Zaman Emon ◽  
Sayeeda Fahmee Chowdhury ◽  
Sumaiya Huque ◽  
Tanzan Zahan ◽  
...  
Keyword(s):  
Major Depressive Disorder ◽  
Depressive Disorder ◽  
Cell Line ◽  
Glial Cell ◽  
Neurotrophic Factor ◽  
Major Depressive

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 ◽  
...  
Keyword(s):  
Major Depressive Disorder ◽  
Depressive Disorder ◽  
Depression Scale ◽  
First Episode ◽  
Hamilton Depression Scale ◽  
Healthy Controls ◽  
Major Depressive ◽  
Hamd Score ◽  
Eeg Changes ◽  
Microstate Analysis

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.

scholarly journals Evidence for Progressive Cognitive Deficits in Patients With Major Depressive Disorder

2021 ◽  
Vol 12 ◽  
Author(s):  
Jin Liu ◽  
Bangshan Liu ◽  
Mi Wang ◽  
Yumeng Ju ◽  
Qiangli Dong ◽  
...  
Keyword(s):  
Major Depressive Disorder ◽  
Depressive Disorder ◽  
Cognitive Deficits ◽  
First Episode ◽  
Major Depressive ◽  
Illness Duration ◽  
Cognitive Components ◽  
Significant Difference ◽  
Before And After ◽  
Mri Study

Background: Cognitive deficits have shown progressive feature in major depressive disorder (MDD). However, it remains unknown which component of cognitive function is progressively impaired across episodes of MDD. Here we aim to identify the progressively impaired cognitive components in patients with MDD.Methods: A comprehensive neurocognitive test battery was used to assess the cognitive components (executive function, attention, processing speed, memory, working memory, inhibition, shifting, and verbal fluency) in 35 patients with first-episode MDD (FED), 60 patients with recurrent MDD (RD) and 111 matched healthy controls (HCs). After 6 months of treatment with antidepressant, 20 FED and 36 RD patients achieved clinical remission and completed their second-time neurocognitive tests. Statistical analyses were conducted to identify the impaired cognitive components in the FED and RD groups before and after treatment, and to assess the relationship between the cognitive components and the number of episodes and total illness duration in the MDD patient group.Results: At baseline, both the FED and RD groups showed impairments in all of the cognitive components; the FED and RD groups showed no significant difference in all of the components except for shifting. After remission, only shifting in the RD group showed no significant improvement and remained in an impaired status. Furthermore, shifting was the only component negatively correlated with the number of episodes as well as the total illness duration.Conclusions: Shifting may serve as the progressive cognitive deficit across episodes of MDD.Clinical Trials Registration: Registry name: HPA function and MRI study of trauma-related depression; Registration number: ChiCTR1800014591; URL: http://www.chictr.org.cn/edit.aspx?pid=24669&htm=4.

scholarly journals Cornu Ammonis Changes Are at the Core of Hippocampal Pathology in Depression

2019 ◽  
Vol 3 ◽  
pp. 247054701984937 ◽  
Author(s):  
Darren Roddy ◽  
Veronica O’Keane
Keyword(s):  
Major Depressive Disorder ◽  
Depressive Disorder ◽  
Disease Process ◽  
First Episode ◽  
Biol Psychiatry ◽  
Healthy Controls ◽  
Major Depressive ◽  
The Core ◽  
Output Circuit ◽  
Cornu Ammonis

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.

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