Effect of antipsychotics on the focal adhesion pathway.

Unlabelled: Focal adhesions and their dynamic nature are essential for various physiological processes, including the formation of neurites, synaptic function and plasticity. Alterations in these processes have been associated with schizophrenia and bipolar disorder.

Objectives: This study aimed to explore the impact of pharmacological treatments used for bipolar disorder and schizophrenia on the expression of genes involved in the focal adhesion pathway, addressing a gap in understanding the interaction between medication effects and disease pathophysiology.

Advancing precision psychiatry and targeted treatments: Insights from immunopsychiatry.

Despite tremendous advancements in neuroscience, there has been limited impact on patient care. Current psychiatric treatments are largely non-specific, and drug development is hindered by outdated, overinclusive diagnostic categories and a "one-size-fits-all" approach. Additionally, mechanisms underlying psychiatric illnesses and their treatments with conventional medications remain poorly understood.

The history of biomarkers in psychiatry: lessons learned, lessons forgotten, lessons rediscovered.

A quirky truth is that the oldest biomarker findings are largely metabolic. These had minimal impact on contemporary thought and research and were largely ignored. They have been rediscovered and validated almost 100 years later, informing our understanding of neurobiology and medical comorbidity and spurring contemporary treatment discovery efforts.

Immuno-metabolic depression: from concept to implementation.

Major depressive disorder is a common, disabling mental disorder characterized by extensive etiological and phenotypic heterogeneity. This heterogeneity makes treatment approaches imprecise and often ineffective. Insight into the underlying biological mechanisms underpinning depression and its subtypes may enable more personalized treatments.

Mitochondrial Dysfunction as a Biomarker of Illness State in Bipolar Disorder: A Critical Review.

Mitochondria are organelles involved in different cellular functions, especially energy production. A relationship between mitochondrial dysfunction and mood disorders, especially bipolar disorder (BD), has been reported in the scientific literature, which suggests altered energy production and higher levels of oxidative stress compared to healthy controls. Specifically, in BD, the hypothesis of a biphasic pattern of energy availability has been postulated according to mood states.

Effect of ketamine on anxiety: findings from the Ketamine for Adult Depression Study.

Background: Anxiety disorders and treatment-resistant major depressive disorder (TRD) are often comorbid. Studies suggest ketamine has anxiolytic and antidepressant properties.

Aims: To investigate if subcutaneous racemic ketamine, delivered twice weekly for 4 weeks, reduces anxiety in people with TRD.

Early antibiotic exposure and risk of psychiatric and neurocognitive outcomes: systematic review and meta-analysis.

Background: The prenatal and early-life periods pose a crucial neurodevelopmental window whereby disruptions to the intestinal microbiota and the developing brain may have adverse impacts. As antibiotics affect the human intestinal microbiome, it follows that early-life antibiotic exposure may be associated with later-life psychiatric or neurocognitive outcomes.

Aims: To explore the association between early-life (in utero and early childhood (age 0-2 years)) antibiotic exposure and the subsequent risk of psychiatric and neurocognitive outcomes.

Methodological and reporting recommendations for clinical trials in Nutritional Psychiatry: Guidelines from the International Society for Nutritional Psychiatry Research.

Research on nutraceutical and dietary interventions in psychiatry has grown substantially, but progress is hindered by methodological inconsistencies and limited reporting standards. To address this, the International Society for Nutritional Psychiatry Research presents the first guidelines on clinical trial design, conduct, and reporting for future clinical trials in this area. Recommendations were developed using a Delphi process including eighteen researchers with considerable clinical trial expertise and experience in either methodology, nutraceutical, or dietary interventions in psychiatry.

Psychometric properties of the Bipolar Spectrum Diagnostic Scale in depressed youth.

Background: Youth with depression may be at a higher risk of developing bipolar disorder (BD). Self-reported, dimensional measures, like the Bipolar Spectrum Diagnostic Scale (BSDS), aim to assess for BD in these groups. We explored properties of this instrument within a cohort of depressed, help-seeking youth.

Anhedonia in Major Depressive Disorder: Prevalence and Treatment Expectations and Satisfaction with Treatment Goals Among Patients and Physicians in Asia-Pacific.

Purpose: To explore the prevalence of anhedonia (ANH) in major depressive disorder (MDD) and treatment expectation and satisfaction among patients with MDD and physicians in the Asia-Pacific region.

Methods: This cross-sectional web-based survey was conducted in April-May 2023 among physicians and individuals aged ≥18 years with self-reported physician diagnosis of MDD (9-item Patient Health Questionnaire [PHQ-9] score ≥ 10) further stratified by anhedonia as measured by the Snaith-Hamilton Pleasure Scale (SHAPS): MDD-ANH (SHAPS score > 2) and MDD non-ANH (SHAPS score ≤ 2). The study assessed the prevalence of anhedonia in MDD as well as the perspectives on the treatment of anhedonia in MDD in terms of expectations and satisfaction among patients and physicians.

Collaborative Outcomes Study on Health and Functioning During Infection Times (COH-FIT): Global and Risk-Group Stratified Course of Well-Being and Mental Health During the COVID-19 Pandemic in Adolescents.

Objective: To identify the COVID-19 pandemic impact on well-being/mental health, coping strategies, and risk factors in adolescents worldwide.

Method: This study was based on an anonymous online multi-national/multi-language survey in the general population (representative/weighted non-representative samples, 14-17 years of age), measuring change in well-being (World Health Organization-Five Well-Being Index [WHO-5]/range = 0-100) and psychopathology (validated composite P-score/range = 0-100), WHO-5 <50 and <29, pre- vs during COVID-19 pandemic (April 26, 2020-June 26, 2022). Coping strategies and 9 a priori- defined individual/cumulative risk factors were measured.

Plasma neurofilament light outperforms glial fibrillary acidic protein in differentiating behavioural variant frontotemporal dementia from primary psychiatric disorders.

Objective: Timely, accurate distinction between behavioural variant frontotemporal dementia (bvFTD) and primary psychiatric disorders (PPD) is a clinical challenge. Blood biomarkers such as neurofilament light chain (NfL) and glial fibrillary acidic protein (GFAP) have shown promise. Prior work has shown NfL helps distinguish FTD from PPD.

White matter microstructure in obesity and bipolar disorders: an ENIGMA bipolar disorder working group study in 2186 individuals.

Although specific risk factors for brain alterations in bipolar disorders (BD) are currently unknown, obesity impacts the brain and is highly prevalent in BD. Gray matter correlates of obesity in BD have been well documented, but we know much less about brain white matter abnormalities in people who have both obesity and BD. We obtained body mass index (BMI) and diffusion tensor imaging derived fractional anisotropy (FA) from 22 white matter tracts in 899 individuals with BD, and 1287 control individuals from 20 cohorts in the ENIGMA-BD working group.

Depressive Symptoms and Gut Microbiota after Bowel Preparation and Colonoscopy: A Pre-Post Intervention Study.

Mechanical bowel preparation (MBP) is essential for visualisation of the colon during colonoscopy. Previous studies have identified changes in gut microbiota composition after MBP and colonoscopy. Considering the gut microbiota is increasingly implicated in psychiatry, we explored the potential impact of this intervention on mood and the microbiota-gut-brain axis.

A pre-post trial to examine biological mechanisms of the effects of time-restricted eating on symptoms and quality of life in bipolar disorder.

Background: The primary objective of this trial is to examine the mechanisms of time-restricted eating (TRE) as an adjunct to psychiatric care for people with bipolar disorder (BD) with sleep or circadian disruptions. This study builds on prior studies of circadian disruption in BD as well as growing evidence that TRE improves circadian functioning.

Methods: One-hundred fifty participants diagnosed with BD 1 or II will be recruited via advertising in the local community.

The Connections Between Alexithymia, Childhood Maltreatment, Impulsivity and Extreme Sensory Processing Patterns in Relation to Bipolar Symptoms in Inpatients With Bipolar Disorder.

Childhood maltreatment, alexithymia and impulsivity are related to bipolar disorder (BD), but the role of potential underlying mechanisms of this link, such as extreme sensory processing, in BD are unclear. This study compared sensory processing patterns between individuals with BD-I or BD-II and between those with and without alexithymia and childhood maltreatment. Additionally, the study aimed to examine the role of extreme sensory processing in the relationship between childhood trauma, alexithymia and impulsivity with both depression and mania in a sample of hospitalized individuals with BD (n = 300).