AI Article Synopsis
- Previous research indicates that low serotonin levels from acute tryptophan depletion (ATD) can lead to depressed mood and cognitive impairment, especially in individuals predisposed to depression.
- In this study, the researchers examined how vulnerability to depression influences the effects of ATD on mood, cognitive performance, and brain activity during a cognitive and emotional task.
- They found that women with a family history of unipolar depression (FH+) reacted differently to ATD compared to those without such a history (FH-), with mood changes not directly correlating to cognitive performance but instead linked to brain activity in the anterior cingulate cortex.
Article Abstract
Previous research has shown that low central serotonin, induced by acute tryptophan depletion (ATD), results in depressed mood and impairs cognition in healthy volunteers with a predisposition for depression. It remains unknown whether ATD affects emotional processing via mood changes or directly. In the present study we investigated the interaction between vulnerability for depression and the effect of ATD on mood, cognition and the associated brain activation. In a previous functional MRI study, we tested the effect of ATD during a combined cognitive and emotional Stroop task in healthy women without a family history of depression (FH-). In this study, we present the data of an additional group of 12 healthy women with a positive family history of unipolar depression (FH+). The effect of ATD on mood and Stroop performance was different for the FH+ group as compared with the FH- group. Scores on the depression sub-scale of the Profile of Mood States (POMS) did not correlate with performance changes, but did correlate with the anterior cingulate cortex response during Stroop interference. This study showed that a family history of unipolar depression interacts with the effect of ATD.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.pscychresns.2008.09.006 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Dropping out of a peripartum depression mHealth study: participants' motives and suggestions for improvement.
BMC Med Res Methodol
January 2025
Department of Women's and Children's Health - Obstetric & Reproductive Health Research, Uppsala University, Uppsala, 751 85, Sweden.
Background: Peripartum depression is a common but potentially debilitating pregnancy complication. Mobile applications can be used to collect data throughout the pregnancy and postpartum period to improve understanding of early risk indicators.
Aim: This study aimed to improve understanding of why women drop out of a peripartum depression mHealth study, and how we can improve the app design.
Application of functional near-infrared spectroscopy and machine learning to predict treatment response after six months in major depressive disorder.
Transl Psychiatry
January 2025
Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore.
Article Synopsis
- Depression treatment effectiveness differs greatly among individuals, highlighting the need for objective biomarkers that can accurately predict therapy outcomes to improve treatment efficiency.
- This study used functional near-infrared spectroscopy (fNIRS) combined with clinical assessments to explore whether machine learning techniques could forecast treatment responses in patients with major depressive disorder (MDD).
- Findings revealed that changes in total hemoglobin levels in a specific brain region (dlPFC) correlated significantly with treatment response, and the fNIRS-only model demonstrated better predictive accuracy compared to a model that also included clinical data.
Identification of aberrant plasma vesicles containing AAK1 and CCDC18-AS1 in adolescents with major depressive disorder and preliminary exploration of treatment efficacy.
Genomics
January 2025
Department of Psychiatry, First Hospital /First Clinical Medical College of Shanxi Medical University, Taiyuan, China; Shanxi Key Laboratory of Artificial Intelligence Assisted Diagnosis and Treatment for Mental Disorder, First Hospital of Shanxi Medical University, Taiyuan, China.. Electronic address:
Background: Major depressive disorder (MDD) during adolescence significantly jeopardizes both mental and physical health. However, the etiology underlying MDD in adolescents remains unclear.
Methods: A total of 74 adolescents with MDD and 40 health controls (HCs) who underwent comprehensive clinical and cognitive assessments were enrolled.
Lipopolysaccharide preconditioning disrupts the behavioral and molecular response to restraint stress in male mice.
Neuroscience
January 2025
Center of Health Sciences, Department of Physiology and Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil; Center of Health Sciences, Postgraduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil. Electronic address:
Major depressive disorder (MDD) is a complex neuropsychiatric disorder potentially influenced by factors such as stress and inflammation. Chronic stress can lead to maladaptive brain changes that may trigger immune hyperactivation, contributing to MDD's pathogenesis. While the involvement of inflammation in MDD is well established, the effects of inflammatory preconditioning in animals subsequently exposed to chronic stress remain unclear.
View Article and Find Full Text PDFQuetiapine is associated with pancreatitis: A real-world pharmacovigilance study.
J Affect Disord
January 2025
Department of Medicine, University of British Columbia, 2194 Health Sciences Mall, Vancouver, British Columbia V6T 1Z3, Canada. Electronic address:
Quetiapine, an atypical antipsychotic widely prescribed for conditions such as schizophrenia, bipolar disorder, and major depressive disorder, has been associated with a potential risk of pancreatitis. This study aimed to quantify the association between quetiapine use and the occurrence of pancreatitis using data from the FDA Adverse Events Reporting System. Disproportionality analyses were conducted to evaluate the frequency of pancreatitis reports linked to quetiapine compared to other drugs in the FAERS database.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!