Restrictive measures and course of behavioral outcomes in representative adult Greek population during the COVID-19 pandemic: Results on functioning, coping, alcohol/substance abuse, smoking, gambling, pro-social activities and domestic violence from the largest multi-wave COVID-19 online national survey in Greece (COH-FIT).

Background: Greece encountered unique COVID-19-pandemic-related challenges, shaped by the country's previous deleterious economic context, an already strained healthcare system and possibly one of Europe's earliest, longest and most stringent restrictive protocols.

Objectives: To offer comprehensive insights into the longitudinal trajectory of a broad range of behavioral and coping parameters within general adult Greek population across the first two pandemic waves.

Methods: Multiple-wave, cross-sectional data from the "Collaborative Outcomes study on Health and Functioning during Infection Times" (COH-FIT) assessed four different time points in order to examine outcomes changes from retrospective, pre-pandemic baseline ratings (T0) to three distinct intra-pandemic time points (lockdown 1: T1, between lockdowns: T2, lockdown 2: T3).

Heterosexual Intimate Partner Femicide: A Narrative Review of Victim and Perpetrator Characteristics.

Intimate partner femicide (IPF) is the most common form of femicide and a severe expression of gender-based violence, highlighting persistent gender inequality worldwide. Addressing this major public health concern requires a comprehensive synthesis of existing evidence to inform prevention strategies. This review aims to identify risk factors for IPF and explore the demographic, behavioral, and psychosocial characteristics of victims and perpetrators.

Differences in baseline and dynamic plasma/saliva endocrine and linear/non-linear heart measures between patients with major depression and closely-matched healthy subjects: A 3-day combined overnight dexamethasone/metyrapone challenge study.

Background: Major depressive disorder (MDD) has been consistently associated with hypothalamic-pituitary-adrenal (HPA)-axis and autonomic nervous system (ANS) (re-)activity abnormalities, however, often with conflicting results.

Methods: This study offers a concurrent multi-measure assessment of both HPA-axis and ANS activity and reactivity over 3 days to better characterize baseline and dynamic neuroendocrine alterations in MDD accounting for multiple individual factors. We therefore investigated group differences between 20 unmedicated MDD patients and 20 carefully-matched healthy controls (HC) by simultaneously assessing morning plasma (CORT, ACTH, copeptin) and awakening response saliva (CORT, DHEA, DHEA-s) endocrine measures, as well as multiple linear and non-linear measures of resting heart rate (HR) and its variability (HRV), before (baseline, day 1) and after a successive overnight metyrapone (HPA-axis stimulation, day 2) and dexamethasone (HPA-axis suppression, day 3) pharmaco-endocrine challenge, controlling for childhood trauma (CT) history.

Impact of COVID-19 pandemic-related restrictive measures on overall mental and physical health and well-being, specific psychopathologies and emotional states in representative adult Greek population: Results from the largest multi-wave, online national survey in Greece (COH-FIT).

Background: Greece faced particular COVID-19-pandemic-related challenges, due to specific socio-cultural-economic/public-health factors and drastic restrictive policies.

Objectives: To understand trajectories of overall mental and physical health, well-being, emotional states and individual psychopathology in response to pandemic-related restrictive measures within general adult Greek population across the first two pandemic waves.

Methods: Using multiple time-point cross-sectional data from the "Collaborative Outcomes study on Health and Functioning during Infection Times" (COH-FIT), we examined changes in outcomes from retrospective pre-pandemic ratings (T0) to three distinct intra-pandemic time points (lockdown 1: T1, between lockdowns: T2, lockdown 2: T3).

Identifying Cardiovascular Risk by Nonlinear Heart Rate Dynamics Analysis: Translational Biomarker from Mice to Humans.

Background: The beat-by-beat fluctuation of heart rate (HR) in its temporal sequence (HR dynamics) provides information on HR regulation by the autonomic nervous system (ANS) and its dysregulation in pathological states. Commonly, linear analyses of HR and its variability (HRV) are used to draw conclusions about pathological states despite clear statistical and translational limitations.

Objective: The main aim of this study was to compare linear and nonlinear HR measures, including detrended fluctuation analysis (DFA), based on ECG recordings by radiotelemetry in C57BL/6N mice to identify pathological HR dynamics.

Early career psychiatrists' perceptions of and training experience in electroconvulsive therapy: A cross-sectional survey across Europe.

Background: Electroconvulsive therapy (ECT) is a safe and effective treatment for several major psychiatric conditions, including treatment-resistant depression, mania, and schizophrenia; nevertheless, its use remains controversial. Despite its availability in some European countries, ECT is still rarely used in others. This study aims to investigate the experiences and attitudes of early career psychiatrists (ECPs) across Europe towards ECT and to examine how their exposure to ECT influences their perceptions.

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.

The European psychiatric association (EPA) - early career psychiatrists committee survey on trainees' and early-career psychiatrists' attitudes towards therapeutic drug monitoring (TDM) use and utility during antipsychotic treatment.

Objectives: This survey assessed psychiatry residents'/early-career psychiatrists' attitudes towards the utility of therapeutic drug monitoring (TDM) of antipsychotics.

Methods: A previously developed questionnaire on attitudes on TDM utility during antipsychotic treatment was cross-sectionally disseminated by national coordinators between 01/01/2022-31/12/2023. The frequency of using TDM for antipsychotics other than clozapine was the main outcome in a linear regression analysis, including sex, clinical setting, caseload, and factors generated by an exploratory factor analysis.

[Childhood Trauma Questionnaire (CTQ): Greek translation and psychometric validation in general and clinical population].

Exposure to childhood trauma experiences shows a high prevalence worldwide, with approximately two-thirds of the general population reporting traumatic experiences during childhood. The valid psychometric assessment of childhood trauma experience represents, however, a significant challenge in clinical research and practice. The Childhood Trauma Questionnaire - Short Form (CTQ-SF) embodies the most valid and internationally widely used tool for the retrospective assessment of traumatic experiences during childhood to date.

[Comparative study of stress and psychological well-being in parents of children with and without special education needs during the COVID-19 pandemic].

The COVID-19 pandemic, which rapidly spread worldwide in early 2020, has affected the daily lives of parents and their children in various ways. This study assessed the overall mental health status and stress experienced by parents during the COVID-19 pandemic and the differences between parents of children with special educational needs and parents of typically developing children. Additionally, we explored potential demographic factors that may influence these experiences.

Inflammation in Posttraumatic Stress Disorder: Dysregulation or Recalibration?

Despite ample experimental data indicating a role of inflammatory mediators in the behavioral and neurobiological manifestations elicited by exposure to physical and psychologic stressors, causative associations between systemic low-grade inflammation and central nervous system inflammatory processes in posttraumatic stress disorder (PTSD) patients remain largely conceptual. As in other stress-related disorders, pro-inflammatory activity may play an equivocal role in PTSD pathophysiology, one that renders indiscriminate employment of anti-inflammatory agents of questionable relevance. In fact, as several pieces of preclinical and clinical research convergingly suggest, timely and targeted potentiation rather than inhibition of inflammatory responses may actually be beneficial in patients who are characterized by suppressed microglia function in the face of systemic low-grade inflammation.

[The human circadian system: physiology, pathophysiology and interactions with sleep and stress reactivity].

The dramatic fluctuations in the energy demands of living organisms by the rhythmic succession of night and day on our planet has prompted a geophysical evolutionary need for a biological temporal organization necessary for maintenance of homeostasis and adaptation to environmental changes across phylogeny. The intrinsic circadian system (CS) represents a highly conserved and complex internal biological "clock", adjusted to the 24-hour rotation of the earth about itself. This system creates and maintains cellular and organismal rhythmicity and enables a nyctohemeral coordination of multi-level physiologic processes, ranging from gene expression to behaviour.

Heart Rate Variability as a Translational Dynamic Biomarker of Altered Autonomic Function in Health and Psychiatric Disease.

The autonomic nervous system (ANS) is responsible for the precise regulation of tissue functions and organs and, thus, is crucial for optimal stress reactivity, adaptive responses and health in basic and challenged states (survival). The fine-tuning of central ANS activity relies on the internal central autonomic regulation system of the central autonomic network (CAN), while the peripheral activity relies mainly on the two main and interdependent peripheral ANS tracts, the sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS). In disease, autonomic imbalance is associated with decreased dynamic adaptability and increased morbidity and mortality.

Morning salivary dehydroepiandrosterone (DHEA) qualifies as the only neuroendocrine biomarker separating depressed patients with and without prior history of depression: An HPA axis challenge study.

Background: Hypothalamic-pituitary-adrenal (HPA) axis abnormalities in major depression (MDD) have been consistently reported in psychiatry and extend to several neurosteroids. However, recurrence and chronicity may heavily influence HPA axis dynamics in MDD along its course and also explain conflicting results in literature. Thus, the mechanistic understanding of HPA axis (re)activity changes over time could be of major importance for unravelling the dynamic pathophysiology of MDD.

Immune Cell Ratios Are Higher in Bipolar Affective than Unipolar Depressive Disorder and Modulated by Mood Episode: A Retrospective, Cross-Sectional Study.

Immune dysregulation is implicated in the pathophysiology of both bipolar and major depressive disorder, while immune cell ratios (IRCs) have recently been proposed as clinically applicable immune biomarkers. We investigated IRCs differences in affective disorders and their association with current mood episodes and clinical features. This retrospective cohort study analyzed neutrophil-lymphocyte (NLR), monocyte-lymphocyte (MLR), and platelet-lymphocyte (PLR) ratios upon admission in 135 affective disorder in-patients with mania (MA, n = 36), bipolar depression (BiD, n = 38), and unipolar depression (MDD, n = 61).

Validation of the Collaborative Outcomes study on Health and Functioning during Infection Times (COH-FIT) questionnaire for adults.

Background: The Collaborative Outcome study on Health and Functioning during Infection Times (COH-FIT; www.coh-fit.com) is an anonymous and global online survey measuring health and functioning during the COVID-19 pandemic.

Prognostic Significance of Blood-Based Baseline Biomarkers in Treatment-Resistant Depression: A Literature Review of Available Studies on Treatment Response.

Major depressive disorder is a leading cause of disability worldwide and a major contributor to the overall global burden of disease. While there are several options for antidepressant treatment, only about 40-60% of patients respond to initial monotherapy, while 30-40% of patients may even show resistance to treatment. This article offers a narrative review of those studies evaluating the predictive properties of various blood-based baseline biomarkers regarding treatment responses to the pharmacological, stimulation, or behavioral treatment of patients with treatment-resistant depression (TRD).

[Neurobiology of early life traumatic stress and trauma: Prolonged neuroendocrine dysregulation as a neurodevelopmental risk factor].

Early life stressors display a high universal prevalence and constitute a major public health problem with two thirds of youth being exposed to potentially traumatic experiences by the age of 17. Traumatic stress exposure during critical periods of development may have essential and long-lasting effects on the physical and mental health of individuals and represents a developmental risk factor mediating risk for disease. Early-life stress (ELS) and childhood trauma (CT) can both have an impact on sensitive neuronal brain networks involved in stress reactions, and could exert a programming effect on glucocorticoid signaling leading to chronic hyper- or hypo-activation of the stress system.