Publications by authors named "Schoevers R"

Objectives: This study investigates repeated oral esketamine as a substitution strategy for maintenance electroconvulsive therapy (M-ECT) in eight patients with treatment-resistant depression (TRD).

Methods: In a 6-week dosing phase, esketamine was titrated from 0.5 or 1.

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Objective: To examine the association between newer generation antidepressants and insomnia as an adverse event (AE) in the treatment of children and adolescents with major depressive disorder (MDD).

Method: A systematic search was performed in major databases (inception to August 31, 2023) to retrieve double-blind, placebo-controlled, randomized controlled trials (RCTs) evaluating the safety of 19 antidepressants in the acute treatment (initial 6 to 12 weeks) of children and adolescents aged ≤ 18 years with MDD (primary analyses). RCTs in anxiety disorders and obsessive-compulsive disorder (OCD) were retrieved from a recent meta-analysis and included in complementary analyses.

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Accumulating evidence supports the efficacy of (es)ketamine in the treatment of major depressive disorder (MDD), particularly treatment-resistant depression (TRD). Yet around 50% of the individuals with TRD do not respond to (es)ketamine. Elucidating predictors of response and remission could improve treatment outcomes at the individual level by defining subpopulations that are most likely to benefit from (es)ketamine.

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Psilocybin represents a novel therapeutic approach for individuals with major depressive disorder (MDD) who do not respond to conventional antidepressant treatment. Investigating the influence of psilocybin on the pathophysiological processes involved in MDD could enhance our neurobiological understanding of the presumed antidepressant action mechanism. This systematic review aims to summarize the results of human studies investigating changes in blood-based biomarkers of MDD to guide future research on potentially relevant analytes that could be monitored in clinical trials.

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Electroconvulsive therapy (ECT) is an effective treatment for depression but is often associated with cognitive side effects. In patients, ECT-induced electric field (E-field) strength across brain regions varies significantly due to anatomical differences, which may explain individual differences in cognitive side effects. We examined the relationship between regional E-field strength and change in verbal fluency score (i.

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Objective: To determine the relationships between psilocybin dose, psychedelic experiences, and therapeutic outcome in treatment-resistant depression.

Methods: For treatment-resistant depression, 233 participants received a single dose of 25, 10, or 1 mg of COMP360 psilocybin (a proprietary, pharmaceutical-grade synthesized psilocybin formulation, developed by the sponsor, Compass Pathfinder Ltd.) with psychological support.

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Although studies of psychedelic-assisted psychotherapy are accumulating, there is no consensus regarding best practice of the psychotherapeutic component. In this systematic review, we summarised the quality of reporting on psychological interventions in research about psychedelic treatments. The design followed PRISMA guidelines and was preregistered in PROSPERO (CRD42022319221).

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Article Synopsis
  • High disease burden from mood, anxiety, and psychotic disorders can be partly addressed through clinical prediction models, but many lack external validation, affecting their reliability in real-world settings.
  • The study systematically reviewed 28 externally validated prediction models, mainly focused on mood disorders, highlighting the importance of clinical predictors like symptom severity while finding concerns about the methodological quality of some studies.
  • Overall, the research found fair discrimination performance of models, suggesting that more external validation and careful consideration of clinical contexts are needed before implementing these prediction models in practice.
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Clinical outcomes after a first-episode of psychosis (FEP) are heterogeneous. Many patient-related factors such as gender and comorbidity have been studied to predict symptomatic outcomes. However, psychiatrist-related factors such as prescription behaviour and gender have received little attention.

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Introduction: Despite considerable efforts, tobacco use disorder persists as a significant public health issue. The effectiveness of current smoking cessation therapies is limited, leading to a growing interest in alternative treatment approaches such as psychedelics.

Aim: The aim of this review is to evaluate the scientific evidence regarding the role of psychedelics in smoking cessation.

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Background: Almost one million Muslims live in the Netherlands, and as first or second-generation migrants, they are at increased risk of developing psychiatric problems. There are barriers for using mental health care, partly due to cultural differences.

Aim: With this essay, we like to contribute to existing knowledge, aiming to improve mental health care to Muslims in the Netherlands.

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Electroconvulsive shocks (ECS) and ketamine are antidepressant treatments with a relatively fast onset of therapeutic effects compared to conventional medication and psychotherapy. While the exact neurobiological mechanisms underlying the antidepressant response of ECS and ketamine are unknown, both interventions are associated with neuroplasticity. Restoration of neuroplasticity may be a shared mechanism underlying the antidepressant efficacy of these interventions.

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Despite many available treatment options for depression, response rates remain suboptimal. To improve outcome, circadian markers may be suitable as markers of treatment response. This systematic review provides an overview of circadian markers that have been studied as predictors of response in treatment of depression.

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Article Synopsis
  • The study investigates how health behaviors like smoking, physical inactivity, and alcohol use may mediate the relationship between depression, anxiety, and different types of cancer, including lung and breast cancer.
  • Utilizing data from 18 cohorts with a total of 319,613 participants, the researchers performed two-stage meta-analyses to analyze these associations and calculate the mediating effects.
  • Results showed that smoking and physical inactivity significantly mediated links between depression, anxiety, and lung cancer, highlighting the importance of smoking cessation programs for individuals dealing with mental health issues.
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Background: In recent decades, gas extraction in Groningen has led to a lot of material and immaterial damage, including much psychological suffering, which was ignored by policymakers for years. With the publication of the report of the Parliamentary Inquiry into Natural Gas Extraction in Groningen, this is recognized and suggestions are made to repair the damage caused in the broadest sense.

Aim: Description of current and expected psychological consequences, and research and treatment to be conducted focused on this specific regional phenomenon.

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Background: Preliminary evidence suggests antidepressant effects of transcranial pulsed electromagnetic fields (tPEMF). However, the precise mechanism of action in the brain is still unknown. The aim of this study was to investigate the influence of tPEMF on brain activation in patients with treatment-resistant depression (TRD) by studying two processes that might be of particular interest in relation to the symptoms of depression: emotional processing and reward processing.

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Article Synopsis
  • About one-third of depression patients don’t respond well to existing treatments, prompting a study on generic oral esketamine for those with treatment-resistant depression (TRD).
  • The study involved a six-week low-dose treatment, a wash-out period, and an optional individual dose adjustment phase, focusing on changes in depressive symptoms using the Hamilton Depression Rating Scale (HDRS).
  • Results indicated that low-dose oral esketamine showed no significant benefits compared to placebo, but higher individually adjusted doses during the extended phase resulted in notable improvements in depressive symptoms.
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Psilocybin is the most researched classic psychedelic for Treatment-Resistant Depression (TRD). While optimizing set and setting are considered essential for efficacy and safety, patient perspectives on these aspects have rarely been investigated. To address this knowledge gap, the current paper explored the experiences of 11 TRD patients (8 women, 3 men) participating in a double-blind randomized clinical trial with a single session of oral (1, 10 or 25 mg) psilocybin treatment.

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  • The study evaluated the effectiveness of Cognitive Behavioural Analysis System of Psychotherapy (CBASP) for treating persistent depressive disorder (PDD), focusing on treatment outcomes over 24 weeks.
  • It found that depression severity significantly decreased after 6 months, with income source and absence of certain comorbidities (axis I) being key predictors of a positive treatment response.
  • Despite some individuals not having favorable outcome predictors, a notable percentage still experienced partial improvements, indicating that group-CBASP may benefit those who don't respond well to conventional therapies.
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Assessing the stability profiles and assay performance of 24 biomarker assays in 32 biomarker/body fluid combinations identified as relevant for prediction of major depressive disorder. Combinations were tested for stability and assay performance with ELISA at different storage and freeze-thaw conditions in pooled samples of 40 patients. Stability and assay performance issues were found in almost all cases except three biomarkers in urine and three in serum.

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  • The study investigates the role of psychosocial factors, like depression and anxiety, in how health behaviors (such as smoking and alcohol use) influence cancer incidence.
  • Utilizing data from 437,827 participants and 22 cohorts, researchers performed meta-analyses to assess potential interactions between psychosocial factors and health behaviors across various types of cancer.
  • Results showed no significant interactions or clear patterns; the risk of cancer linked to health behaviors appeared consistent regardless of the presence of psychosocial stress.
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  • Methylphenidate (MPH) is commonly prescribed for attention-deficit/hyperactivity disorder, but some patients require unusually high doses, possibly due to genetic differences affecting drug metabolism.
  • A study involving three patients taking doses between 180 to 640 mg of MPH found that their plasma concentrations were lower than expected, indicating a faster metabolism of the drug.
  • However, genetic testing of the CES1 gene did not reveal any variants that could account for the increased clearance of MPH in these patients, suggesting other factors may be involved in their high dosage needs.
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Background: Despite the availability of a wide variety of evidence-based treatments for major depressive disorder (MDD), many patients still experience impairments in their lives after remission. Programs are needed that effectively support patients in coping with these impairments. The program Storytelling and Training to Advance Individual Recovery Skills (STAIRS) was developed to address this need and combines the use of peer contact, expert-by-experience guidance, family support and professional blended care.

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Background: Gas extraction-induced earthquakes have been taking place in the province of Groningen , the Netherlands, for many years. These lead to damage to homes and other buildings. This damage, and the way in which claims are handled, leads to physical and mental health problems, including sleeping problems.

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