Child Psychiatric Disorders Research Articles

Addressing treatment hurdles in adults with late-onset attention-deficit/hyperactivity disorder: a detailed case report

BackgroundAttention-deficit/hyperactivity disorder (ADHD) is the most prevalent psychiatric disorder in children, characterized by inattention, hyperactivity, and impulsivity. This neurobehavioral disorder often persists into adulthood, presenting significant challenges when undiagnosed and untreated, due to potential long-term implications and comorbidities, including anxiety, mood instability, and mixed symptoms along the bipolar spectrum.Case presentationA 49-year-old married male patient presented with anxiety and recurrent depressive episodes, initially diagnosed as major depressive disorder. His mood symptoms fluctuated between depressive lows, irritability, and impulsivity. His diagnosis was revised to ADHD with comorbid bipolar spectrum disorder. The patient exhibited lifelong ADHD symptoms affecting academic performance, relationships, and job responsibilities. Cognitive-behavioral therapy (CBT) was employed to manage symptoms and enhance coping strategies. Despite progress in controlling anger and impulsivity, challenges persisted in inhibitory control and negative triggers, causing impulsive decisions. The patient reported a restless mind, depressive mood, and a sense of inadequacy. Improvements were noted in anxiety regulation, concentration, and sleep quality, though deficits in cognitive and behavioral domains remained. The patient faced challenges in academic performance, information processing speed, attention, and executive functions.ConclusionThis case underscores the importance of accurately diagnosing ADHD and its comorbidities in adults to ensure effective treatment. Delayed diagnosis can have lasting impacts, emphasizing the need for further research and personalized therapeutic approaches. The insights from this case serve as a valuable resource for healthcare professionals enhancing their understanding of the diverse manifestations of ADHD, aiding in better diagnosis and management strategies.

Child and adolescent psychiatric disorders and ICD-11.

An important change in ICD-11 is the lifespan approach, whereby previous child and adolescent disorders have been amalgamated with adult disorders. There have been changes in the definition/descriptions of neurodevelopmental and disruptive disorders, some of which may have an impact on service development.

Electroencephalographic changes in children with attention deficit hyperactivity disorder

BackgroundAttention deficit hyperactivity disorder (ADHD) is the most prevalent psychiatric disorder in children who experience delayed language development. This work aimed to study electroencephalographic (EEG) changes in children with ADHD and establish a strategy for prompt identification and suitable management in the future.MethodsThis descriptive cross-sectional study was conducted on 100 children aged between 5 and 12 years old, both sexes, diagnosed with ADHD according to DSM-V Criteria, diagnosed as ADHD children with the Arabic version of Conner’s Parent Rating Scale. Psychometric evaluation by intelligence quotient (IQ) using Stanford Binet Intelligence test. The Receptive Expressive Arabic Language Scale was used to assess language profile.ResultsThere was a significant negative correlation between the severity of ADHD and IQ scores. There was an insignificant negative correlation between ADHD and scaled receptive language score and scaled expressive language score. There was an insignificant positive correlation between ADHD and scaled expressive language score. There was a significant difference between EEG changes and combined subtype of ADHD and scaled score of receptive language (P < 0.05). There was an insignificant difference between (EEG changes and language development), the scaled score of expressive, total language, and the scaled score of language.ConclusionsEEG has clinical utility in the diagnosis of ADHD. The results of EEG analysis in children with ADHD have been quite important, and this novel methodology could offer supplementary factors to strengthen its diagnostic impact.

La fonction des écrits dans les relations entre la théorie et la pratique en psychiatrie et psychologie clinique. À la mémoire de Georges Lanteri-Laura et de Jean Garrabé

Among the many ways in which knowledge is transmitted in psychiatry and clinical psychology, written communication has always been a vast field. But new means of expression and communication have brought about a diversity in the modalities used in teaching and personal training in the midst of the diversification of psychiatric currents, the means of exploration, and therapeutic methods. The relationship between theory and practice is central to the means of transmission in the specific characteristics of the different currents of French psychiatry: 1) Psychiatric conceptions which focus on the various neurobiological and biochemical networks, genetic research and artificial intelligence are confronted in their current evolution with the epistemological demands of explanation and understanding. And psychiatry, in all its complexity, cannot and will not be spared adopting these same demands; 2) The different psychopathological dimensions that underlie the various concepts of psychiatric disorders in children, adolescents and adults are constantly confronted with the relationship between theoretical conceptions and practical modalities, in the clinical relationship and in therapeutic conduct. In this article, we propose to address a certain number of reflections in this field, by questioning the principal psychopathological conceptions of today. And this reflection places great emphasis on the need to clarify concepts, perspectives and projects; 3) Epistemological dimensions can thereby render it possible to identify the numerous articles concerning the transmission of psychiatry and its fields: – First and foremost, studies on the relationship between theory and practice make it possible to distinguish between the various categories. They provide a clear understanding of the specific dynamics involved in understanding psychiatric disorders; – Studies on the relationship between the fields of time and life sciences correspond to very important epistemological attitudes that are very important to be taken into account. The neurosciences which are currently playing a key role in medicine and psychiatry usher us into “the knowledge of life”. These various studies compel us to consider just what the relationship is betweenthe “objectivity of the scientist” and the “subjectivity of the living”. We can then turn our attention to the anthropological concepts concerning the philosophy of life where we will find in the various psychiatric disorders the essential questions about the meaning of life that are present in the mind of every human being.

Psychiatric Comorbidity in Children and Youth with Epilepsy

Introduction: Psychiatric comorbidities of epilepsy are common. Yet psychiatric disorders are often under-prevented, under-diagnosed, and under-treated. Objectives: to assess the prevalence of different psychiatric disorders in children and adolescents with epilepsy and to determine associated risk factors. Methods: This is a descriptive and analytical cross-sectional study of patients treated for a psychiatric disorder comorbid with epilepsy, conducted in the Child Psychiatry Department at Ar-Razi Hospital in Salé, Morocco, from January 1st to December 31st, 2022.Data were collected using a questionnaire concerning the socio-demographic and clinical characteristics of our patients. Psychiatric disorders were assessed using the diagnostic criteria of the DSM-5 psychiatric manual. Results: Our study included 70 patients followed for epilepsy comorbid with a psychiatric disorder. The most common psychiatric comorbidities were intellectual development disorder, autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD). 72.9% suffered from a single psychiatric comorbidity, while 27.1% had two or more. Several sociodemographic and clinical factors were associated with different psychiatric disorders. Gender was associated with conduct and behavior disorders, with males predominating (p=0.043), while age was significantly associated with psychosis (p=0.047). Mood disorders were associated with the type of epilepsy. Seizure recurrence was associated with behavioral and anxiety disorders. Conclusion: The co-morbidity of psychiatric disorders and epilepsy in children and adolescents is common, underscoring the importance of early detection for improved management.

Discriminant diagnostic validity of paediatric bipolar disorder screening tests: A systematic review and meta-analysis.

Bipolar disorders (BD) are among the most significantly impairing of childhood and adolescent psychiatric disorders. Although BD symptoms may begin in adolescence, they are frequently not diagnosed until adulthood, and accordingly BD scales could aid diagnostic assessment in paediatric populations. This review aims to synthesis the evidence for the accuracy of BD symptom index tests for discriminating BD from non-BD (other diagnoses or healthy controls) in paediatric population. Additionally, several theoretically relevant moderators of diagnostic accuracy were evaluated. A systematic search across three databases were conducted from 1980 to 2022, augmented by grey literature database searches, citation chaining and contacting authors. Data from eligible studies were synthesized using meta-analysis. A multilevel model was fitted to account for nested effect sizes, with 31 potential moderators examined in univariate and multivariate models. Twenty-Eight studies were eligible, yielding 115 effect sizes for analysis. Meta-analytic modelling indicated BD symptom index tests have a high diagnostic accuracy (g = 1.300; 95% CI: 0.982 - 1.619; p < .001) in paediatric population. Accuracy was relative to the type of comparison group, index test content, index test informant and index test's scale or subscale. Screening tests based on mania content, caregiver report and non-healthy comparison groups have clinical utility in identifying paediatric BD. Other informant-and-content combination may not accurately identify paediatric BD. Unlike healthy controls, tests derived from studies using non-healthy comparison groups, represent BD symptom non-specificity and BD symptom overlap with other disorders, providing external validity and clinical utility.

Trends in Mental Disorders in Children and Adolescents Receiving Treatment in the State Mental Health System

To examine recent trends in clinical diagnoses of children and adolescents receiving treatment in publicly funded mental health treatment services in the United States. Data on children and adolescents (≤17 years) receiving treatment from publicly funded mental health treatment services recorded in Mental Health Client-Level Data 2013-2021 (total number of records= 13,684,154) were used to examine temporal trends in the proportion of different child and adolescent psychiatric disorders. Trends were examined overall and in age, sex, racial/ethnic, and service strata focusing on community-based programs. The analyses revealed increases in the proportion of anxiety disorders from 9.6% in 2013 to 19.2% in 2021 (adjusted odds ratio [AOR] 2.17, 95% CI 1.85-2.55, p< .001), trauma- and stressor-related disorders from 22.7% to 27.4% (AOR 1.31, 95% CI 1.09-1.57, p= .004), and depressive disorders from 13.4% to 17.0% (AOR 1.20, 95% CI 1.03-1.41, p= .04). During this same period, the proportion of bipolar disorders declined almost 8-fold from 10.0% to 1.3% (AOR 0.07, 95% CI 0.06-0.09, p< .001). The proportion of conduct disorder and oppositional defiant disorder also declined from 9.7% to 4.4% (AOR 0.42, 95% CI 0.32-0.55, p< .001) and from 11.1% to 7.8% (AOR 0.79, 95% CI 0.65-0.98, p= .03), respectively. Trends varied across sex, age, and racial/ethnic strata. The composition of childhood psychiatric diagnoses in patients within publicly funded mental health treatment settings changed over the past decade. While some of the trends may reflect changes in diagnostic practices of clinicians, increases in anxiety and depressive disorders parallel trends in the prevalence of these conditions in the general population and highlight a growing need for identifying and treating these conditions in this age group.

Dynamic stress- and inflammatory-based regulation of psychiatric risk loci in human neurons.

The prenatal environment can alter neurodevelopmental and clinical trajectories, markedly increasing risk for psychiatric disorders in childhood and adolescence. To understand if and how fetal exposures to stress and inflammation exacerbate manifestation of genetic risk for complex brain disorders, we report a large-scale context-dependent massively parallel reporter assay (MPRA) in human neurons designed to catalogue genotype x environment (GxE) interactions. Across 240 genome-wide association study (GWAS) loci linked to ten brain traits/disorders, the impact of hydrocortisone, interleukin 6, and interferon alpha on transcriptional activity is empirically evaluated in human induced pluripotent stem cell (hiPSC)-derived glutamatergic neurons. Of ~3,500 candidate regulatory risk elements (CREs), 11% of variants are active at baseline, whereas cue-specific CRE regulatory activity range from a high of 23% (hydrocortisone) to a low of 6% (IL-6). Cue-specific regulatory activity is driven, at least in part, by differences in transcription factor binding activity, the gene targets of which show unique enrichments for brain disorders as well as co-morbid metabolic and immune syndromes. The dynamic nature of genetic regulation informs the influence of environmental factors, reveals a mechanism underlying pleiotropy and variable penetrance, and identifies specific risk variants that confer greater disorder susceptibility after exposure to stress or inflammation. Understanding neurodevelopmental GxE interactions will inform mental health trajectories and uncover novel targets for therapeutic intervention.

Evaluating Doppel's impact on Anxiety and Focus amongst adults with ADHD.

Attention Deficit Hyperactivity Disorder (ADHD) is the most commonly diagnosed psychiatric disorder in children. Amongst adults, it is often underdiagnosed and associated with comorbidities including anxiety. This study presents a trial evaluating the efficacy of Doppel, a wrist-worn wearable that provides vibrations linked to one's heart rate to improve symptoms of anxiety and poor focus amongst young adults with ADHD. Young adults (aged 18-25) used either an active or comparator Doppel for 8 weeks, completing measures of anxiety and focus at baseline, 4 weeks, and 8 weeks. Participants in both groups experienced a reduction in anxiety and an increase in focus across the trial duration. No superiority for vibrations linked to one's heart rate was found. Whilst the current study cannot determine a specific mechanism of action, the findings provide some promising initial evidence as to the potential for direct-to-consumer digital health products to be useful in symptom management amongst young adults with ADHD.

Vitamin B12 and folate deficiencies, elevated homocysteine and their roles in the biochemical basis of neuropsychiatric diseases in children and adolescents: Case series, review and recommendations

Objective: Vitamin B12 and folate deficiencies can be frequently seen in children and adolescents and may manifest with neuropsychiatric symptoms. Vitamin B12 and folate deficiencies and the associated increase in homocysteine are related to one-carbon metabolism (OCM) and may play a role in the pathogenesis of childhood and adolescent psychiatric disorders. Therefore, a case series and review on OCM will be presented here. Method: Twelve cases with vitamin B12 and folate deficiency and increased homocysteine among those admitted to the child and adolescent psychiatry clinic were retrospectively examined. Results: It was found that vitamin B12 and folate deficiency and increased homocysteine may cause depressive symptoms, anxiety disorders, obsessive compulsive disorder, anger control problems, self-harming behaviors, suicidal thoughts, and attempts in children and adolescents. Conclusion: According to these data, vitamin B12 and folate deficiency and the resulting increase in homocysteine may cause psychiatric symptoms in some children and adolescents. In addition, literature on OCM has been reviewed. The diagnosis and treatment methods for vitamin B12 and folate deficiencies are summarized for clinicians.

Patterns of substance use and initiation timing in adults with substance abuse: a comparison between those with and without attention deficit hyperactivity disorder.

Attention deficit hyperactivity disorder (ADHD) is a prevalent psychiatric disorder in childhood and adolescence, persisting into adulthood in 60% of cases, with an adult age prevalence rate of 4%. substance use disorder (SUD) is a recognized comorbidity with significant social and financial implications, necessitating detailed investigation. This longitudinal study focused on adults with SUD in addiction detention in two camps including Toska and Chitgar in the west and south of Tehran during 2021-2022. Participants underwent assessment using the Structured Clinical Interview for DSM Disorders (SCID) to identify individuals with SUD, excluding those with major mental problems. The remaining subjects were assessed by Conner's questionnaire. And positive cases underwent a comprehensive ADHD interview. The study comprised 50 individuals with ADHD and 90 without ADHD, allowing for a comparative analysis of the onset age of substance use and patterns across both groups. The substances examined included alcohol, cannabis, crack, methamphetamine, tramadol, methadone, opium, ecstasy, morphine, and hypnotics. The study revealed a lower age of onset of substance use in the ADHD group. Furthermore, individuals with ADHD exhibited higher rates of alcohol, cannabis, methamphetamine, and tramadol use, while the non-ADHD group showed elevated usage of Ritalin, methadone, ecstasy, morphine, and hypnotics. Prompt diagnosis and treatment of ADHD regarding the lower onset age of substance use and a further range of high-risk substances, such as alcohol, methamphetamine, and crack, would be crucial. Additionally, based on these findings, policy recommendations should emphasize early ADHD screening and intervention strategies to mitigate the risk of substance use disorders, thereby addressing the associated social and financial burdens.

Cannabidiol for Treatment of Child and Adolescent Psychiatric Disorders

Parents and patients have inquired about the safety and efficacy of cannabidiol (CBD) in treating child and adolescent mental health conditions. This review examines the current literature regarding CBD containing less than 0.3% tetrahydrocannabinol (THC) in treatment of childhood psychiatric disorders for youth 20 years and younger. Although there are several areas of growing interest for potential use of CBD, such as social anxiety disorder and autism spectrum disorder, the evidence base remains limited. Large-scale controlled trials are needed to determine the efficacy of CBD for treatment of child and adolescent psychiatric disorders. [ Psychiatr Ann . 2024;54(6):e186–e192.]

Coding of Childhood Psychiatric and Neurodevelopmental Disorders in Electronic Health Records of a Large Integrated Health Care System: Validation Study.

Mental, emotional, and behavioral disorders are chronic pediatric conditions, and their prevalence has been on the rise over recent decades. Affected children have long-term health sequelae and a decline in health-related quality of life. Due to the lack of a validated database for pharmacoepidemiological research on selected mental, emotional, and behavioral disorders, there is uncertainty in their reported prevalence in the literature. We aimed to evaluate the accuracy of coding related to pediatric mental, emotional, and behavioral disorders in a large integrated health care system's electronic health records (EHRs) and compare the coding quality before and after the implementation of the International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) coding as well as before and after the COVID-19 pandemic. Medical records of 1200 member children aged 2-17 years with at least 1 clinical visit before the COVID-19 pandemic (January 1, 2012, to December 31, 2014, the ICD-9-CM coding period; and January 1, 2017, to December 31, 2019, the ICD-10-CM coding period) and after the COVID-19 pandemic (January 1, 2021, to December 31, 2022) were selected with stratified random sampling from EHRs for chart review. Two trained research associates reviewed the EHRs for all potential cases of autism spectrum disorder (ASD), attention-deficit hyperactivity disorder (ADHD), major depression disorder (MDD), anxiety disorder (AD), and disruptive behavior disorders (DBD) in children during the study period. Children were considered cases only if there was a mention of any one of the conditions (yes for diagnosis) in the electronic chart during the corresponding time period. The validity of diagnosis codes was evaluated by directly comparing them with the gold standard of chart abstraction using sensitivity, specificity, positive predictive value, negative predictive value, the summary statistics of the F-score, and Youden J statistic. κ statistic for interrater reliability among the 2 abstractors was calculated. The overall agreement between the identification of mental, behavioral, and emotional conditions using diagnosis codes compared to medical record abstraction was strong and similar across the ICD-9-CM and ICD-10-CM coding periods as well as during the prepandemic and pandemic time periods. The performance of AD coding, while strong, was relatively lower compared to the other conditions. The weighted sensitivity, specificity, positive predictive value, and negative predictive value for each of the 5 conditions were as follows: 100%, 100%, 99.2%, and 100%, respectively, for ASD; 100%, 99.9%, 99.2%, and 100%, respectively, for ADHD; 100%, 100%, 100%, and 100%, respectively for DBD; 87.7%, 100%, 100%, and 99.2%, respectively, for AD; and 100%, 100%, 99.2%, and 100%, respectively, for MDD. The F-score and Youden J statistic ranged between 87.7% and 100%. The overall agreement between abstractors was almost perfect (κ=95%). Diagnostic codes are quite reliable for identifying selected childhood mental, behavioral, and emotional conditions. The findings remained similar during the pandemic and after the implementation of the ICD-10-CM coding in the EHR system.

Questioning disruptive disorder with emotional dysregulation

Disruptive Emotional Dysregulation Disorder (DEDD) responds to an increase in diagnoses of clastic crises, reactive depression and bipolarity in children and adolescents. Emerging in the 1990s, EDD has become an issue for practitioners, parents and teachers alike, and has become an integral part of the landscape of paediatric and child psychiatric disorders. Its diagnostic complexity is accentuated by criteria that include persistent and disproportionate outbursts of anger, often confused with other pathologies, especially as diagnostic tools are few and far between. Professionals in the field know little about EDD, preferring to diagnose more familiar disorders.

The Role of Sleep Disturbances in the Onset and Maintenance of Psychiatric Disorders in Childhood and Adolescence: A Review of Subjective and Polysomnographic Findings

The Role of Sleep Disturbances in the Onset and Maintenance of Psychiatric Disorders in Childhood and Adolescence: A Review of Subjective and Polysomnographic Findings

Comparison of self-esteem and quality of life in 8-12-year-old children with ADHD with and without learning disorders

BackgroundAttention Deficit/Hyperactivity Disorder (ADHD) is one of the most common disorders in school-aged children. Learning disorder (LD) is also one of the most important psychiatric disorders in children, which can often be associated with ADHD. In this study, we sought to compare self-esteem and quality of life in 8 to 12-year-old children with attention deficit/hyperactivity disorder with and without co-occurring learning disorders in order to emphasize the importance of attention and diagnosis in children with ADHD.MethodAmong the 8- to 12-year-old outpatients referred to the child and adolescent psychiatry clinic of Omid Babol Clinic, 120 children aged 8 to 12 years with attention deficit/hyperactivity disorder whose disease was diagnosed by a child and adolescent psychiatry subspecialist. Among the tools used to collect information was the Colorado Learning Difficulties Questionnaire by Wilcott et al. (CLDQ), five-scale self-esteem test of Pepe et al. (1989) for children and quality-of-life questionnaire for 8–12-year-old children (PedsQL).ResultsThis study investigated self-esteem and quality of life in children with ADHD (n = 120, 51.7% boys). Children with ADHD and learning disabilities reported significantly lower self-esteem and quality of life compared to those with ADHD alone.ConclusionConsidering the relatively high probability of co-occurrence of ADHD and learning disorders, if one of them is diagnosed in a child, it is possible to look for other disorders in the child in order to avoid the more severe negative effects that this co-occurrence can have on the child by diagnosing it as soon as possible.

Cord serum cytokines at birth and children's trajectories of mood dysregulation symptoms from 3 to 8 years: The EDEN birth cohort

There is growing evidence that in utero imbalance immune activity plays a role in the development of neurodevelopmental and psychiatric disorders in children. Mood dysregulation (MD) is a debilitating transnosographic syndrome whose underlying pathophysiological mechanisms could be revealed by studying its biomarkers using the Research Domain Criteria (RDoC) model. Our aim was to study the association between the network of cord serum cytokines, and mood dysregulation trajectories in offsprings between 3 and 8 years of age. We used the data of a study nested in the French birth cohort EDEN that took place from 2003 to 2014 and followed mother-child dyads from the second trimester of pregnancy until the children were 8 years of age. The 2002 mother-child dyads were recruited from the general population through their pregnancy follow-up in two French university hospitals. 871 of them were included in the nested cohort and cord serum cytokine levels were measured at birth. Children's mood dysregulation symptoms were assessed with the Strengths and Difficulties Questionnaire Dysregulation Profile at the ages 3, 5 and 8 years in order to model their mood dysregulation trajectories. Out of the 871 participating dyads, 53% of the children were male. 2.1% of the children presented a high mood dysregulation trajectory whereas the others were considered as physiological variations. We found a significant negative association between TNF-α cord serum levels and a high mood dysregulation trajectory when considering confounding factors such as maternal depression during pregnancy (adjusted Odds Ratio (aOR) = 0.35, 95% Confidence Interval (CI) [0.18–0.67]). Immune imbalance at birth could play a role in the onset of mood dysregulation symptoms. Our findings throw new light on putative immune mechanisms implicated in the development of mood dysregulation and should lead to future animal and epidemiological studies.

The relationship between anxiety, quality of life, and oral health of children aged 4-6 years in kindergartens in Tehran, Iran

Background: Although oral health indicators have shown significant improvement in recent decades, oral diseases are still considered a common chronic disease with high prevalence in society. These diseases are considered important community health issues due to the effects they have on people›s lives and the effects their treatment may have. Numerous studies have shown an association between anxiety and decreased oral health indicators, with anxiety disorders being the most common childhood psychiatric disorders. This study attempts to determine the link between anxiety, quality of life and oral health in children. Methods: This study was performed on a random sample of 600 children aged 4–6 years in kindergartens in Tehran, and finally, 443 were evaluated. The Preschool Anxiety Scale (PAS) questionnaire measured children’s anxiety, and the Early Childhood Oral Health Impact Scale (F-ECOHIS) questionnaire was used for quality of life. Structural equation modelling (SEM) was used to evaluate the simultaneous effect of anxiety and oral health variables on the life quality related to oral health. The causal relationship between the variables were investigated and confirmed with this tool and the χ2 /df, GFI, CFI, NNFI (TGF), and RMSEA indices. Results: The reliability of the PAS and F-ECOHIS questionnaire was confirmed by Cronbach’s alpha coefficient. SEM was used to investigate the concurrent effects of anxiety and oral health on oral health-related quality of life (OHQOL). Two SEM models were selected for our purpose. Both models were statistically suitable, but the model in which anxiety directly impacted dmft and directly or indirectly influences OHQOL was clinically justified and was selected as the final model. Conclusion: Anxiety directly affects oral health (DMFT) and has a direct and indirect effect on the quality of life related to the oral health of preschool children.

Epilepsy and childhood psychiatric disorders: a two-sample bidirectional Mendelian randomization study.

Observational studies have indicated that psychiatric disorders are the most common comorbidities in pediatric epilepsy. However, the existence and direction of a causal relationship between the two remains controversial. This study aims to investigate the association between common childhood psychiatric disorders and epilepsy using a two-sample, bidirectional Mendelian randomization (MR) approach. Genetic instruments were obtained from the most recent and largest genome-wide association studies (GWAS), including datasets for epilepsy (N_case = 29,994, N_control = 52,538), attention deficit hyperactivity disorder (ADHD) (N_case = 38,691, N_control = 186,843), autism spectrum disorder (ASD) (N_case = 18,381, N_control = 27,969), and Tourette syndrome (TS) (N_case = 4,819, N_control = 9488). MR analyses were conducted using the inverse variance weighted (IVW) method, weighted median method, and MR-Egger regression. No reliable evidence was found to suggest a causal effect of ADHD, ASD, or TS on epilepsy, nor was there any reliable evidence indicating that epilepsy increases the risk of these three psychiatric disorders. These findings remained consistent across various sensitivity analyses. Although observational studies have highlighted a high comorbidity rate between pediatric epilepsy and psychiatric disorders like ADHD and ASD, the MR analysis did not confirm a causal relationship between them. This suggests that previous studies might have been influenced by confounding biases or other biases, potentially overestimating the true relationship. A deeper understanding of the mechanisms underlying these comorbidities is crucial for refining the treatment of pediatric epilepsy.

Oxidative Imbalance in Pediatric Anxiety Disorders: A Preliminary Comparative Study.

Background It is important to determine the possible related factors of anxiety disorder, one of the common psychiatric disorders of childhood. Our aims in this study were to compare oxidative stress markers between anxiety disorders in pediatric patients and healthy controls and to examine the relationship between anxiety symptom severity and oxidative stress indicators. Methods The study included 25 patients and 25 healthy controls. We measured the total oxidant capacity (TOS) and total antioxidant capacity (TAS) from the collected serum samples and calculated the oxidative stress index (OSI). We evaluated the clinical severity of the anxiety symptoms by the Revised Child Anxiety and Depression Scale-Child Version (RCADS-CV). Results The groups did not exhibit a noteworthy distinction in terms of TOS (p=0.128) and TAS (p=0.329). However, OSI was markedly elevated in the group with anxiety disorder (p=0.044). In the correlation analysis between anxiety symptom severity and oxidative stress indicators in the group with anxiety disorder, we found a positive correlation between TOS and RCADS total anxiety score (p=0.08). Conclusion These results may point to an oxidative dysfunction in anxiety disorders and the potential role of oxidative stress in their aetiology. Prospective, large-scale, randomized studies are needed to investigate if oxidative stress indicators can be used in the diagnosis of anxiety disorders and as new treatment targets.