Background Raising a child with attention deficit hyperactivity disorder(ADHD)is a key challenge for the primary caregiver.This systematic review aims to identify major burdens facing the primary caregiver of a child ...Background Raising a child with attention deficit hyperactivity disorder(ADHD)is a key challenge for the primary caregiver.This systematic review aims to identify major burdens facing the primary caregiver of a child with ADHD.Methods The electronic databases CINAHL,PubMed,and Google Scholar were searched for studies published in English from 2017 to 2022 assessing the challenges facing caregivers of a child with ADHD.The Johns Hopkins Nursing Evidence-Based Practice Model was used to assess quality and risk of bias of studies identified for inclusion.Articles were synthesized by evaluating principal themes of burden to caregivers,stress of caregivers,and effectiveness of intervention programs.Results Eleven articles were included in this review and included a total of 2426 participants.Findings revealed that caregivers of children with ADHD have a poor quality of life and high stress levels.Supportive parenting programs can be effective for improved coping and adaptation mechanisms with children with ADHD.However,few interventional studies were identified,increasing potential for bias.No meta-analysis was conducted.Conclusion Caregivers of children with ADHD can benefit from strategies to improve their quality of life and reduce their stress levels.Targeted parenting programs can make a positive difference in the well-being of caregivers and children with ADHD.Additional research is needed to address the evidence-based effectiveness of parenting support programs.展开更多
Attention deficit hyperactivity disorder(ADHD)turns into a common neuro progressional disorder.Although gender identity has obtained increasing attention in ADHD researches,its role in ADHD presentation and treatment ...Attention deficit hyperactivity disorder(ADHD)turns into a common neuro progressional disorder.Although gender identity has obtained increasing attention in ADHD researches,its role in ADHD presentation and treatment response remains underexplored.Our review seeks to mainly delve into the effect of gender identity on ADHD,exploring the unique needs of individuals with various gender identities in the context of ADHD symptoms,diagnostic assessment,and treatment,with the goal of supplying theoretical support and practical recommendations for future research and clinical practice.The primary content includes,specifically:(1)Symptom expression differences:Gender identity significantly affects ADHD symptoms;male-identified individuals commonly perform worse in task orientation and attention stability,while female-identified individuals may demonstrate more variability in attention control and executive functions;(2)Diagnosis and treatment:Clinical practice generally neglects the impact of gender identity on ADHD management,with personalized needs of gender-identified individuals frequently not adequately addressed,potentially,affecting treatment outcomes;and(3)Future research directions:Future studies should further assess how gender identity affects the specific mechanisms of ADHD,conduct researches in multicultural contexts,and engage in long-term follow-up studies to evaluate the long-term impact of gender identity on ADHD progression.Besides,enhanced funding and public education on the relationship between gender identity and ADHD are needed to advance the field.展开更多
BACKGROUND Attention deficit hyperactivity disorder(ADHD)is a prevalent neurodevelopmental disorder in adolescents characterized by inattention,hyperactivity,and impulsivity,which impact cognitive,behavioral,and emoti...BACKGROUND Attention deficit hyperactivity disorder(ADHD)is a prevalent neurodevelopmental disorder in adolescents characterized by inattention,hyperactivity,and impulsivity,which impact cognitive,behavioral,and emotional functioning.Resting-state functional magnetic resonance imaging(rs-fMRI)provides critical insights into the functional architecture of the brain in ADHD.Despite extensive research,specific brain regions consistently affected in ADHD patients during these formative years have not been comprehensively delineated.AIM To identify consistent vulnerable brain regions in adolescent ADHD patients using rs-fMRI and activation likelihood estimation(ALE)meta-analysis.METHODS We conducted a comprehensive literature search up to August 31,2024,to identify studies investigating functional brain alterations in adolescents with ADHD.We utilized regional homogeneity(ReHo),amplitude of low-frequency fluctuations(ALFF),dynamic ALFF(dALFF)and fractional ALFF(fALFF)analyses.We compared the regions of aberrant spontaneous neural activity in adolescents with ADHD with those in healthy controls(HCs)using ALE.RESULTS Fifteen studies(468 adolescent ADHD patients and 466 HCs)were included.Combining the ReHo and ALFF/fALFF/dALFF data,the results revealed increased activity in the right lingual gyrus[LING,Brodmann Area(BA)18],left LING(BA 18),and right cuneus(CUN,BA 23)in adolescent ADHD patients compared with HCs(voxel size:592-32 mm³,P<0.05).Decreased activity was observed in the left medial frontal gyrus(MFG,BA 9)and left precuneus(PCUN,BA 31)in adolescent ADHD patients compared with HCs(voxel size:960-456 mm³,P<0.05).Jackknife sensitivity analyses demonstrated robust reproducibility in 11 of the 13 tests for the right LING,left LING,and right CUN and in 11 of the 14 tests for the left MFG and left PCUN.CONCLUSION We identified specific brain regions with both increased and decreased activity in adolescent ADHD patients,enhancing our understanding of the neural alterations that occur during this pivotal stage of development.展开更多
The prevalence of autism and attention deficit/hyperactivity disorders is increasing worldwide.Recent studies suggest the excessive intake of ultra-processed food plays a role in the inheritance of these disorders via...The prevalence of autism and attention deficit/hyperactivity disorders is increasing worldwide.Recent studies suggest the excessive intake of ultra-processed food plays a role in the inheritance of these disorders via heavy metal exposures and nutritional deficits that impact the expression of genes.In the case of the metallothionein(MT)gene,biomarker studies show dietary zinc(Zn)deficits impact MT protein levels in children with autism and are associated with the bioaccumulation of lead and/or mercury in children exhibiting autism/attention deficit/hyperactivity disorders symptomology.The impact of dietary changes on lead and mercury exposures and MT gene behavior could be determined using a randomized test and control group design.Pregnant women serving in the testgroup would participate in a nutritional epigenetics education intervention/course designed to reduce ultra-processed food intake and heavy metal levels in blood while increasing whole food intake and MT and Zn levels.Changes in maternal diet would be measured using data derived from an online diet survey administered to the test and control groups pre-post intervention.Changes in maternal lead,mercury,Zn,and MT levels would be measured via blood sample analyses prior to the intervention and after childbirth via cord blood analyses to determine infant risk factors.展开更多
BACKGROUND Speech and language therapy(ST)might moderate the prognosis in children with attention deficit and hyperactivity disorder(ADHD)comorbid with speech delay.This study investigated whether ST in children with ...BACKGROUND Speech and language therapy(ST)might moderate the prognosis in children with attention deficit and hyperactivity disorder(ADHD)comorbid with speech delay.This study investigated whether ST in children with ADHD is associated with a decreased risk of subsequent psychiatric disorders.AIM To investigate whether ST in children with ADHD is associated with a decreased risk of subsequent psychiatric disorders.METHODS The population-based National Health Insurance Research Database in Taiwan was used.Hazards of subsequent psychiatric disorders were compared between those who received ST and a propensity-score matched comparison group by Cox regression analyses.RESULTS Of 11987 children with ADHD identified from the dataset,2911(24%)had received ST.The adjusted hazard ratio for any subsequent recorded psychiatric disorder was 0.72(95%confidence interval:0.63-0.82)in children who received ST compared to the matched counterparts.This protective association was only statistically significant in the subgroup that received both medication and behavioral interventions.CONCLUSION ST can moderate the effects of integrated early interventions in ADHD children with speech delay.展开更多
Inappropriate levels of hyperactivity,impulsivity,and inattention characterize attention deficit hyperactivity disorder,a common childhood-onset neuropsychiatric disorder.The cognitive function and learning ability of...Inappropriate levels of hyperactivity,impulsivity,and inattention characterize attention deficit hyperactivity disorder,a common childhood-onset neuropsychiatric disorder.The cognitive function and learning ability of children with attention deficit hyperactivity disorder are affected,and these symptoms may persist to adulthood if they are not treated.The diagnosis of attention deficit hyperactivity disorder is only based on symptoms and objective tests for attention deficit hyperactivity disorder are missing.Treatments for attention deficit hyperactivity disorder in children include medications,behavior therapy,counseling,and education services which can relieve many of the symptoms of attention deficit hyperactivity disorder but cannot cure it.There is a need for a molecular biomarker to distinguish attention deficit hyperactivity disorder from healthy subjects and other neurological conditions,which would allow for an earlier and more accurate diagnosis and appropriate treatment to be initiated.Abnormal expression of microRNAs is connected to brain development and disease and could provide novel biomarkers for the diagnosis and prognosis of attention deficit hyperactivity disorder.The recent studies reviewed had performed microRNA profiling in whole blood,white blood cells,blood plasma,and blood serum of children with attention deficit hyperactivity disorder.A large number of microRNAs were dysregulated when compared to healthy controls and with some overlap between individual studies.From the studies that had included a validation set of patients and controls,potential candidate biomarkers for attention deficit hyperactivity disorder in children could be miR-140-3p,let-7g-5p,-30e-5p,-223-3p,-142-5p,-486-5p,-151a-3p,-151a-5p,and-126-5p in total white blood cells,and miR-4516,-6090,-4763-3p,-4281,-4466,-101-3p,-130a-3p,-138-5p,-195-5p,and-106b-5p in blood serum.Further studies are warranted with children and adults with attention deficit hyperactivity disorder,and consideration should be given to utilizing rat models of attention deficit hyperactivity disorder.Animal studies could be used to confirm microRNA findings in human patients and to test the effects of targeting specific microRNAs on disease progression and behavior.展开更多
Objective:This study aims to investigate the impact of early intervention on neuropsychological development in children with autism and attention deficit hyperactivity disorder(ADHD),providing effective intervention s...Objective:This study aims to investigate the impact of early intervention on neuropsychological development in children with autism and attention deficit hyperactivity disorder(ADHD),providing effective intervention strategies for clinical practice.Methods:A total of 130 children with autism and ADHD who visited the hospital between June 2023 and June 2024 were selected as study subjects and randomly divided into an intervention group and a control group,with 65 children in each group.The intervention group received a one-year early comprehensive intervention,including behavioral therapy,cognitive training,and family guidance,while the control group only received routine medical care.The neuropsychological development assessment scale was used to evaluate both groups before and after the intervention to compare changes in their neuropsychological development levels.Results:Children in the intervention group showed significant improvements in cognitive function,social skills,language ability,and attention concentration,with an average improvement score of 23.5 points.Children in the control group did not show significant improvements in these areas,with an average improvement score of only 5.8 points.The difference between the two groups was statistically significant(P<0.05).Conclusion:Early comprehensive intervention has a significant promoting effect on the neuropsychological development of children with autism and ADHD.Targeted behavioral therapy,cognitive training,and family guidance can effectively enhance children’s cognitive,social,language,and attention abilities,laying a solid foundation for their future overall development.Therefore,it is recommended to actively promote and apply early intervention strategies in clinical practice.展开更多
BACKGROUND Attention deficit hyperactivity disorder(ADHD)is a common mental and behavioral disorder among children.AIM To explore the focus of attention deficit hyperactivity disorder parents and the effectiveness of ...BACKGROUND Attention deficit hyperactivity disorder(ADHD)is a common mental and behavioral disorder among children.AIM To explore the focus of attention deficit hyperactivity disorder parents and the effectiveness of early clinical screening METHODS This study found that the main directions of parents seeking medical help were short attention time for children under 7 years old(16.6%)and poor academic performance for children over 7 years old(12.1%).We employed a two-stage experiment to diagnose ADHD.Among the 5683 children evaluated from 2018 to 2021,360 met the DSM-5 criteria.Those diagnosed with ADHD underwent assessments for letter,number,and figure attention.Following the exclusion of ADHD-H diagnoses,the detection rate rose to 96.0%,with 310 out of 323 cases identified.RESULTS This study yielded insights into the primary concerns of parents regarding their children's symptoms and validated the efficacy of a straightforward diagnostic test,offering valuable guidance for directing ADHD treatment,facilitating early detection,and enabling timely intervention.Our research delved into the predominant worries of parents across various age groups.Furthermore,we showcased the precision of the simple exclusion experiment in discerning between ADHD-I and ADHD-C in children.CONCLUSION Our study will help diagnose and guide future treatment directions for ADHD.展开更多
BACKGROUND Attention deficit hyperactivity disorder(ADHD)is a prevalent neurodevelopmental disorder in childhood.There is growing evidence that both preterm birth and maternal education levels substantially affect the...BACKGROUND Attention deficit hyperactivity disorder(ADHD)is a prevalent neurodevelopmental disorder in childhood.There is growing evidence that both preterm birth and maternal education levels substantially affect the likelihood of ADHD in children.However,there are limited systematic reviews and meta-analyses examining these associations.AIM To systematically review and conduct a meta-analysis on the association of preterm birth and maternal education level on the risk of ADHD in children.METHODS We conducted a comprehensive literature search across MEDLINE(PubMed),Web of Science,Embase,and the Cochrane Library,including studies published up to June 17,2024.Data synthesis was performed using random-effect models,and the quality of studies was assessed using the Newcastle-Ottawa Scale.RESULTS This study included twelve studies,which revealed a significant association between premature delivery and an increased risk of ADHD in children[odds ratio(OR)=2.76,95%confidence interval(CI):2.52-3.04,P<0.001,I^(2)=1.9%).Conversely,higher maternal education levels were significantly associated with a reduced risk of ADHD in children(OR=0.59,95%CI:0.48-0.73,P<0.001,I^(2)=47.1%).Subgroup analysis further indicated that maternal education levels significantly influenced ADHD risk,particularly in studies conducted in China(OR=0.59,95%CI:0.46-0.75,P<0.001,I^(2)=81.2%),while no significant association was observed in studies from other regions(OR=1.25,95%CI:0.66-2.40,P=0.495,I^(2)=92.3%).The sensitivity analysis confirmed the robustness of our findings,showing no significant publication bias.CONCLUSION This study found that preterm birth significantly increases the risk of ADHD in children,while a higher maternal education level serves as a protective factor against ADHD.To reduce the incidence of ADHD in children,public health policies should focus on early intervention for preterm infants and improving maternal education levels.展开更多
BACKGROUND Unhealthy maternal diet leads to heavy metal exposures from the consumption of ultra-processed foods that may impact gene behavior across generations,creating conditions for the neurodevelopmental disorders...BACKGROUND Unhealthy maternal diet leads to heavy metal exposures from the consumption of ultra-processed foods that may impact gene behavior across generations,creating conditions for the neurodevelopmental disorders known as autism and attention deficit/hyperactivity disorder(ADHD).Children with these disorders have difficulty metabolizing and excreting heavy metals from their bloodstream,and the severity of their symptoms correlates with the heavy metal levels measured in their blood.Psychiatrists may play a key role in helping parents reduce their ultra-processed food and dietary heavy metal intake by providing access to effective nutritional epigenetics education.AIM To test the efficacy of nutritional epigenetics instruction in reducing parental ultra-processed food intake.METHODS The study utilized a semi-randomized test and control group pretest-posttest pilot study design with participants recruited from parents having a learning-disabled child with autism or ADHD.Twenty-two parents who met the inclusion criteria were randomly selected to serve in the test(n=11)or control(n=11)group.The test group participated in the six-week online nutritional epigenetics tutorial,while the control group did not.The efficacy of the nutritional epigenetics instruction was determined by measuring changes in parent diet and attitude using data derived from an online diet survey administered to the participants during the pre and post intervention periods.Diet intake scores were derived for both ultra-processed and whole/organic foods.Paired sample t-tests were conducted to determine any differences in mean diet scores within each group.RESULTS There was a significant difference in the diet scores of the test group between the pre-and post-intervention periods.The parents in the test group significantly reduced their intake of ultra-processed foods with a preintervention diet score of 70(mean=5.385,SD=2.534)and a post-intervention diet score of 113(mean=8.692,SD=1.750)and the paired t-test analysis showing a significance of P<0.001.The test group also significantly increased their consumption of whole and/or organic foods with a pre-intervention diet score of 100(mean=5.882,SD=2.472)and post-intervention diet score of 121(mean=7.118,SD=2.390)and the paired t-test analysis showing a significance of P<0.05.CONCLUSION Here we show nutritional epigenetics education can be used to reduce ultra-processed food intake and improve attitude among parents having learning-disabled children with autism or ADHD.展开更多
Introduction: Attention deficit hyperactivity disorder (ADHD) is a little-studied psychiatric pathology in our countries, and particularly here in Benin. Objectives: To calculate the prevalence and identify the factor...Introduction: Attention deficit hyperactivity disorder (ADHD) is a little-studied psychiatric pathology in our countries, and particularly here in Benin. Objectives: To calculate the prevalence and identify the factors associated with attention deficit hyperactivity disorder among adults in the commune of Parakou in 2022. Methods: Cross-sectional, descriptive, analytical study including subjects aged 18 and over. ADHD was assessed with the Adult ADHD Self Report Scale (ARSR-v1.1) and consequences with the Weiss functional impairment rating scale (WFIRS-S). Results: A total of 456 people were included in the study. The mean age of those surveyed was 25.9 ± 11.6 years. The prevalence of ADHD symptoms among the adults surveyed was 6.8%. The clinical form of ADHD with a predominance of inattention had a prevalence of 3.3%. After multivariate analysis, the factor associated with the presence of ADHD symptoms in adults in the commune of Parakou was: a poor relationship with the subject’s partner (p = 0.031, ORa = 6.5 [1.18-35.68]). Conclusion: ADHD is present in the community of Parakou and needs further attention.展开更多
The neurocircuitries that constitute the corticostriato-thalamo-cortical（CSTC） circuit provide a framework for bridging gaps between neuroscience and executive function in attention deficit hyperactivity disorder（A...The neurocircuitries that constitute the corticostriato-thalamo-cortical（CSTC） circuit provide a framework for bridging gaps between neuroscience and executive function in attention deficit hyperactivity disorder（ADHD）, but it has been difficult to identify the mechanisms for regulating emotional problems from the understanding of ADHD comorbidity with disruptive behavior disorders（DBD）. Research based on ＂cool＇＇ and ＂hot＇＇executive functional theory and the dual pathway models,which are thought of as applied response inhibition and delay aversion, respectively, within the neuropsychological view of ADHD, has shed light on emotional responding before and after decontextualized stimuli, while CSTC circuit-related domains have been suggested to explain the different emotional symptoms of ADHD with or without comorbid DBD. This review discusses the role of abnormal connections in each CSTC circuit, especially in the emotion circuit, which may be responsible for targeted executive dysfunction at the neuroscience level. Thus, the two major domains – abstract thinking（cool） and emotional trait（hot） – trigger the mechanism of onset of ADHD.展开更多
Attention deficit hyperactivity disorder （ADHD） is one of the most common mental disorders in childhood, with a high heritability about 60% to 90%. Serotonin is a monoamine neurotransmitter. Numerous studies have re...Attention deficit hyperactivity disorder （ADHD） is one of the most common mental disorders in childhood, with a high heritability about 60% to 90%. Serotonin is a monoamine neurotransmitter. Numerous studies have reported the association between the serotonin receptor family （5-HTR） gene polymorphisms and ADHD, but the results are still controversial. In this study, we conducted a meta-analysis of the association between 5-HTRIB, 5-HTR2A, and 5-HTR2C genetic variants and ADHD. The results showed that the 861G allele of 5-HTRIB SNP rs6296 could significantly increase the risk of ADHD （OR= 1.09, 95% CI： 1.01-1.18）; the 5-HTR2C gene rs518147 （OR=1.69, 95% CI： 1.38-2.07） and rs3813929 （OR = 1.57, 95% CI： 1.25-1.97） were all associated with the risk of ADHD. In addition, we also carried on a case- control study to explore the relevance between potential candidate genes 5-HTR1A, 5-HTRIE, 5-HTR3A and ADHD. The results indicated that 5-HTRIA rs6295 genotype （CC＋CG vs. GG OR=Z00, 95% CI： 1.23-3.27） and allele （OR=1.77, 95% CI： 1.16-2.72） models were statistically significantly different between case group and control group. This study is the first comprehensive exploration and summary of the association between serotonin receptor family genetic variations and ADHD, and it also provides more evidence for the etiology of ADHD.展开更多
Objective:To explore the effect and mechanism of action of Celastrus paniculatus oil on the treatment of perinatal rats with attention deficit hyperactivity disorder.Methods:In the perinatal stage,the rats were either...Objective:To explore the effect and mechanism of action of Celastrus paniculatus oil on the treatment of perinatal rats with attention deficit hyperactivity disorder.Methods:In the perinatal stage,the rats were either isolated or administered with lead acetate to establish an animal model of attention deficit hyperactivity disorder.Atomoxetine served as the reference standard.Animals’behaviours were assessed through Y-maze,novel object preference,fear conditioning and residentintruder aggression tests.Oxidative stress parameters,bioamine concentration(dopamine,noradrenaline and 5-hydroxytryptamine),nerve growth factor,interleukin-6,nuclear factor-κB,and tumour necrosis factor(TNF)-αwere estimated.Synaptophysin immunohistochemical assay was performed.Results:Celastrus paniculatus oil significantly improved behavioural parameters in Y maze,novel object preference,discrimination index,fear conditioning and resident intruder aggressive tests.The treatment groups showed a decrease in malondialdehyde level.Changes in the levels of dopamine,noradrenaline,and serotonin were restored by Celastrus paniculatus oil.Celastrus paniculatus oil increased nerve growth factor and decreased interleukin-6,nuclear factor-κB,and TNF-α.Synaptophysin immunoreactivity was also improved by Celastrus paniculatus oil with alleviated reactive gliosis,degeneration,and vascular proliferation.Conclusions:This research shows the therapeutic potential of Celastrus paniculatus oil for the treatment of attention deficit hyperactivity disorder.展开更多
Attention deficit and hyperactivity disorder （ADHD）, a prevalent syndrome in children worldwide, is characterized by impulsivity, inappropriate inattention, and/or hyperactivity. It seriously afflicts cognitive deve...Attention deficit and hyperactivity disorder （ADHD）, a prevalent syndrome in children worldwide, is characterized by impulsivity, inappropriate inattention, and/or hyperactivity. It seriously afflicts cognitive development in childhood, and may lead to chronic under-achievement, academic failure, problematic peer relationships, and low self-esteem. There are at least three challenges for the treatment of ADHD. First, the neurobiological bases of its symptoms are still not clear. Second, the commonly prescribed medications, most showing short-term therapeutic efficacy but with a high risk of serious side-effects, are mainly based on a dopamine mechanism. Third, more novel and efficient animal models, especially in nonhuman primates, are required to accelerate the development of new medications. In this article, we review research progress in the related fields, focusing on our previous studies showing that blockade of prefrontal cortical a2A-adrenoceptors in monkeys produces almost all the typical behavioral symptoms of ADHD.展开更多
BACKGROUND Iron plays an important role in neurodevelopmental functions in the brain.Serum ferritin levels are different in children with attention deficit hyperactivity disorder and tic disorder than in healthy child...BACKGROUND Iron plays an important role in neurodevelopmental functions in the brain.Serum ferritin levels are different in children with attention deficit hyperactivity disorder and tic disorder than in healthy children.AIM To explore the current status of iron deficiency in children with neurodevelopmental disorders and its sex and age effects.METHODS A total of 1565 children with attention deficit hyperactivity disorder(ADHD),1694 children with tic disorder(TD),93 children with ASD and 1997 healthy control children were included between January 1,2020,and December 31,2021 at Beijing Children's Hospital.We describe the differences in age levels and ferritin levels between different disease groups and their sex differences.The differences between the sexes in each disease were analyzed using the t test.The incidence rate of low serum ferritin was used to describe the differences between different diseases and different age groups.A chi-square test was used to analyze the difference in the incidence of low serum ferritin between the disease group and the control group.Analysis of variance was used for comparisons between subgroups,and regression analysis was used for confounding factor control.RESULTS A total of 1565 ADHD patients aged 5-12 years were included in this study,and the average serum ferritin levels of male and female children were 36.82±20.64μg/L and 35.64±18.56μg/L,respectively.A total of 1694 TD patients aged 5-12 years were included in this study,and the average serum ferritin levels of male and female children were 35.72±20.15μg/L and 34.54±22.12μg/L,respectively.As age increased,the incidence of low serum ferritin in ADHD and TD first decreased and then increased,and 10 years old was the turning point of rising levels.The incidence of ADHD with low serum ferritin was 8.37%,the incidence of TD with low serum ferritin was 11.04%,and the incidence of the healthy control group with low serum ferritin was 8.61%,among which male children with TD accounted for 9.25%and female children with TD accounted for 11.62%.There was a significant difference among the three groups(P<0.05).In addition,there were 93 children with ASD with an average serum ferritin level of 30.99±18.11μg/L and a serum ferritin incidence of 15.05%.CONCLUSION In conclusion,low serum ferritin is not a risk factor for ADHD or TD.The incidence of low serum ferritin levels in children with ADHD and TD between 5 and 12 years old decreases first and then increases with age.展开更多
In order to study the treatment of the children with attention deficit hyperactivity disorder (ADHD), the integrated visual and auditory continuous performance test (IVA-CPT) was clinically applied to evaluate the eff...In order to study the treatment of the children with attention deficit hyperactivity disorder (ADHD), the integrated visual and auditory continuous performance test (IVA-CPT) was clinically applied to evaluate the effectiveness of electroencephalogram (EEG) biofeedback training. Of all the 60 children with ADHD aged more than 6 years, the effective rate of EEG biofeedback training was 91.6 % after 40 sessions of EEG biofeedback training. Before and after treatment by EEG biofeedback training, the overall indexes of IVA were significantly improved among predominately inattentive, hyperactive, and combined subtype of children with ADHD (P<0.001). It was suggested that EEG biofeedback training was an effective and vital treatment on children with ADHD.展开更多
Attention deficit hyperactivity disorder（ADHD） is a pervasive psychiatric disorder that affects both children and adults. Adult male and female patients with ADHD are differentially affected, but few studies have ex...Attention deficit hyperactivity disorder（ADHD） is a pervasive psychiatric disorder that affects both children and adults. Adult male and female patients with ADHD are differentially affected, but few studies have explored the differences. The purpose of this study was to quantify differences between adult male and female patients with ADHD based on neuroimaging and connectivity analysis. Resting-state functional magnetic resonance imaging scans were obtained and preprocessed in 82 patients. Group-wise differences between male and female patients were quantified using degree centrality for different brain regions. The medial-, middle-, and inferior-frontal gyrus, superior parietal lobule, precuneus, supramarginal gyrus, superior- and middle-temporal gyrus, middle occipital gyrus, and cuneus were identified as regions with significant group-wise differences. The identified regions were correlated with clinical scores reflecting depression and anxiety and significant correlations were found. Adult ADHD patients exhibit different levels of depression and anxiety depending on sex, and our study provides insight into how changes in brain circuitry might differentially impact male and female ADHD patients.展开更多
Social functioning is a key domain of impairment in both autism spectrum disorder(ASD)and attention-deficit/hyperactivity disorder(ADHD).This review adopts the social information-processing model as the theoretical fr...Social functioning is a key domain of impairment in both autism spectrum disorder(ASD)and attention-deficit/hyperactivity disorder(ADHD).This review adopts the social information-processing model as the theoretical framework to compare and contrast the deficits of ASD and ADHD at each of the six steps of social information-processing.Both disorders show deficits at each step,but the nature and origins of the deficits are different.Thus,while both disorders exhibit a common outcome of social impairment,the exact pathways that each disorder traverses along the six steps of social information-processing are different.For ASD,there is a social knowledge/behaviour deficit arising from difficulties in social/emotional cue detection,encoding,and interpretation,leading to problems in joining and initiating social interaction.For ADHD,there is a performance deficit incurred by disruption arising from the ADHD symptoms of inattention and hyperactivity/impulsivity,while its acquisition capacity on social knowledge is relatively intact.The inattentive,intrusive,and impulsive behaviours of ADHD unsettle social interaction.Finally,this review proposes training targets for intervention along the six steps of the social information-processing model for ASD and ADHD,as well as areas for future research in further elucidating the social impairment of the two disorders.展开更多
Objectives:Compare and relate the performance of schoolchildren with Attention Deficit Hyperactivity Disorder(ADHD)and with good academic performance in the visual-motor perceptual and reading processes.Method:Twenty ...Objectives:Compare and relate the performance of schoolchildren with Attention Deficit Hyperactivity Disorder(ADHD)and with good academic performance in the visual-motor perceptual and reading processes.Method:Twenty schoolchildren,of both genders,aged between nine and 11 years old,participated in this study.They were divided into two groups:Group I(GI):comprising 10 students diagnosed with ADHD;and Group II(GII):10 students with good academic performance paired according to gender,age group,and educational level with GI.All students were submitted to the Developmental Test of Visual Perception(DTVP 3)and Reading Processes Assessment Protocol(PROLEC).Results:There was lower performance of GI compared to GII in the subtests of copying,eye-hand coordination,and figure-ground in the standard score of general visual perception and visual-motor integration.GI presented lower performance in all reading processes except for the punctuation marks test.There was a statistically significant difference in the comparison between GI and GII regarding the classification of reading processes.A relationship was identified between the reading and visual perception subtests in the GI students,demonstrating a relationship between the visual perceptual motor skills and the reading processes in the group of students with ADHD.Conclusion:Schoolchildren with ADHD performed less well than their peers with good academic performance in the visual-motor perceptual and reading skills;such that the worse their performance in the visual-motor perceptual processes,the worse their performance in the reading processes.展开更多
文摘Background Raising a child with attention deficit hyperactivity disorder(ADHD)is a key challenge for the primary caregiver.This systematic review aims to identify major burdens facing the primary caregiver of a child with ADHD.Methods The electronic databases CINAHL,PubMed,and Google Scholar were searched for studies published in English from 2017 to 2022 assessing the challenges facing caregivers of a child with ADHD.The Johns Hopkins Nursing Evidence-Based Practice Model was used to assess quality and risk of bias of studies identified for inclusion.Articles were synthesized by evaluating principal themes of burden to caregivers,stress of caregivers,and effectiveness of intervention programs.Results Eleven articles were included in this review and included a total of 2426 participants.Findings revealed that caregivers of children with ADHD have a poor quality of life and high stress levels.Supportive parenting programs can be effective for improved coping and adaptation mechanisms with children with ADHD.However,few interventional studies were identified,increasing potential for bias.No meta-analysis was conducted.Conclusion Caregivers of children with ADHD can benefit from strategies to improve their quality of life and reduce their stress levels.Targeted parenting programs can make a positive difference in the well-being of caregivers and children with ADHD.Additional research is needed to address the evidence-based effectiveness of parenting support programs.
基金Supported by the Central Guiding Local Science and Technology Development Fund Project,No.YDZX2022091。
文摘Attention deficit hyperactivity disorder(ADHD)turns into a common neuro progressional disorder.Although gender identity has obtained increasing attention in ADHD researches,its role in ADHD presentation and treatment response remains underexplored.Our review seeks to mainly delve into the effect of gender identity on ADHD,exploring the unique needs of individuals with various gender identities in the context of ADHD symptoms,diagnostic assessment,and treatment,with the goal of supplying theoretical support and practical recommendations for future research and clinical practice.The primary content includes,specifically:(1)Symptom expression differences:Gender identity significantly affects ADHD symptoms;male-identified individuals commonly perform worse in task orientation and attention stability,while female-identified individuals may demonstrate more variability in attention control and executive functions;(2)Diagnosis and treatment:Clinical practice generally neglects the impact of gender identity on ADHD management,with personalized needs of gender-identified individuals frequently not adequately addressed,potentially,affecting treatment outcomes;and(3)Future research directions:Future studies should further assess how gender identity affects the specific mechanisms of ADHD,conduct researches in multicultural contexts,and engage in long-term follow-up studies to evaluate the long-term impact of gender identity on ADHD progression.Besides,enhanced funding and public education on the relationship between gender identity and ADHD are needed to advance the field.
基金Supported by National Natural Science Foundation of China,No.82460282Guizhou Province Science and Technology Plan Project,No.ZK-2023-195+1 种基金Guizhou High-Level Innovative Talent Project,No.gzwjrs2022-013Health Commission of Guizhou Province Project,No.gzwkj2024-475 and No.gzwkj2021-150.
文摘BACKGROUND Attention deficit hyperactivity disorder(ADHD)is a prevalent neurodevelopmental disorder in adolescents characterized by inattention,hyperactivity,and impulsivity,which impact cognitive,behavioral,and emotional functioning.Resting-state functional magnetic resonance imaging(rs-fMRI)provides critical insights into the functional architecture of the brain in ADHD.Despite extensive research,specific brain regions consistently affected in ADHD patients during these formative years have not been comprehensively delineated.AIM To identify consistent vulnerable brain regions in adolescent ADHD patients using rs-fMRI and activation likelihood estimation(ALE)meta-analysis.METHODS We conducted a comprehensive literature search up to August 31,2024,to identify studies investigating functional brain alterations in adolescents with ADHD.We utilized regional homogeneity(ReHo),amplitude of low-frequency fluctuations(ALFF),dynamic ALFF(dALFF)and fractional ALFF(fALFF)analyses.We compared the regions of aberrant spontaneous neural activity in adolescents with ADHD with those in healthy controls(HCs)using ALE.RESULTS Fifteen studies(468 adolescent ADHD patients and 466 HCs)were included.Combining the ReHo and ALFF/fALFF/dALFF data,the results revealed increased activity in the right lingual gyrus[LING,Brodmann Area(BA)18],left LING(BA 18),and right cuneus(CUN,BA 23)in adolescent ADHD patients compared with HCs(voxel size:592-32 mm³,P<0.05).Decreased activity was observed in the left medial frontal gyrus(MFG,BA 9)and left precuneus(PCUN,BA 31)in adolescent ADHD patients compared with HCs(voxel size:960-456 mm³,P<0.05).Jackknife sensitivity analyses demonstrated robust reproducibility in 11 of the 13 tests for the right LING,left LING,and right CUN and in 11 of the 14 tests for the left MFG and left PCUN.CONCLUSION We identified specific brain regions with both increased and decreased activity in adolescent ADHD patients,enhancing our understanding of the neural alterations that occur during this pivotal stage of development.
文摘The prevalence of autism and attention deficit/hyperactivity disorders is increasing worldwide.Recent studies suggest the excessive intake of ultra-processed food plays a role in the inheritance of these disorders via heavy metal exposures and nutritional deficits that impact the expression of genes.In the case of the metallothionein(MT)gene,biomarker studies show dietary zinc(Zn)deficits impact MT protein levels in children with autism and are associated with the bioaccumulation of lead and/or mercury in children exhibiting autism/attention deficit/hyperactivity disorders symptomology.The impact of dietary changes on lead and mercury exposures and MT gene behavior could be determined using a randomized test and control group design.Pregnant women serving in the testgroup would participate in a nutritional epigenetics education intervention/course designed to reduce ultra-processed food intake and heavy metal levels in blood while increasing whole food intake and MT and Zn levels.Changes in maternal diet would be measured using data derived from an online diet survey administered to the test and control groups pre-post intervention.Changes in maternal lead,mercury,Zn,and MT levels would be measured via blood sample analyses prior to the intervention and after childbirth via cord blood analyses to determine infant risk factors.
文摘BACKGROUND Speech and language therapy(ST)might moderate the prognosis in children with attention deficit and hyperactivity disorder(ADHD)comorbid with speech delay.This study investigated whether ST in children with ADHD is associated with a decreased risk of subsequent psychiatric disorders.AIM To investigate whether ST in children with ADHD is associated with a decreased risk of subsequent psychiatric disorders.METHODS The population-based National Health Insurance Research Database in Taiwan was used.Hazards of subsequent psychiatric disorders were compared between those who received ST and a propensity-score matched comparison group by Cox regression analyses.RESULTS Of 11987 children with ADHD identified from the dataset,2911(24%)had received ST.The adjusted hazard ratio for any subsequent recorded psychiatric disorder was 0.72(95%confidence interval:0.63-0.82)in children who received ST compared to the matched counterparts.This protective association was only statistically significant in the subgroup that received both medication and behavioral interventions.CONCLUSION ST can moderate the effects of integrated early interventions in ADHD children with speech delay.
文摘Inappropriate levels of hyperactivity,impulsivity,and inattention characterize attention deficit hyperactivity disorder,a common childhood-onset neuropsychiatric disorder.The cognitive function and learning ability of children with attention deficit hyperactivity disorder are affected,and these symptoms may persist to adulthood if they are not treated.The diagnosis of attention deficit hyperactivity disorder is only based on symptoms and objective tests for attention deficit hyperactivity disorder are missing.Treatments for attention deficit hyperactivity disorder in children include medications,behavior therapy,counseling,and education services which can relieve many of the symptoms of attention deficit hyperactivity disorder but cannot cure it.There is a need for a molecular biomarker to distinguish attention deficit hyperactivity disorder from healthy subjects and other neurological conditions,which would allow for an earlier and more accurate diagnosis and appropriate treatment to be initiated.Abnormal expression of microRNAs is connected to brain development and disease and could provide novel biomarkers for the diagnosis and prognosis of attention deficit hyperactivity disorder.The recent studies reviewed had performed microRNA profiling in whole blood,white blood cells,blood plasma,and blood serum of children with attention deficit hyperactivity disorder.A large number of microRNAs were dysregulated when compared to healthy controls and with some overlap between individual studies.From the studies that had included a validation set of patients and controls,potential candidate biomarkers for attention deficit hyperactivity disorder in children could be miR-140-3p,let-7g-5p,-30e-5p,-223-3p,-142-5p,-486-5p,-151a-3p,-151a-5p,and-126-5p in total white blood cells,and miR-4516,-6090,-4763-3p,-4281,-4466,-101-3p,-130a-3p,-138-5p,-195-5p,and-106b-5p in blood serum.Further studies are warranted with children and adults with attention deficit hyperactivity disorder,and consideration should be given to utilizing rat models of attention deficit hyperactivity disorder.Animal studies could be used to confirm microRNA findings in human patients and to test the effects of targeting specific microRNAs on disease progression and behavior.
文摘Objective:This study aims to investigate the impact of early intervention on neuropsychological development in children with autism and attention deficit hyperactivity disorder(ADHD),providing effective intervention strategies for clinical practice.Methods:A total of 130 children with autism and ADHD who visited the hospital between June 2023 and June 2024 were selected as study subjects and randomly divided into an intervention group and a control group,with 65 children in each group.The intervention group received a one-year early comprehensive intervention,including behavioral therapy,cognitive training,and family guidance,while the control group only received routine medical care.The neuropsychological development assessment scale was used to evaluate both groups before and after the intervention to compare changes in their neuropsychological development levels.Results:Children in the intervention group showed significant improvements in cognitive function,social skills,language ability,and attention concentration,with an average improvement score of 23.5 points.Children in the control group did not show significant improvements in these areas,with an average improvement score of only 5.8 points.The difference between the two groups was statistically significant(P<0.05).Conclusion:Early comprehensive intervention has a significant promoting effect on the neuropsychological development of children with autism and ADHD.Targeted behavioral therapy,cognitive training,and family guidance can effectively enhance children’s cognitive,social,language,and attention abilities,laying a solid foundation for their future overall development.Therefore,it is recommended to actively promote and apply early intervention strategies in clinical practice.
文摘BACKGROUND Attention deficit hyperactivity disorder(ADHD)is a common mental and behavioral disorder among children.AIM To explore the focus of attention deficit hyperactivity disorder parents and the effectiveness of early clinical screening METHODS This study found that the main directions of parents seeking medical help were short attention time for children under 7 years old(16.6%)and poor academic performance for children over 7 years old(12.1%).We employed a two-stage experiment to diagnose ADHD.Among the 5683 children evaluated from 2018 to 2021,360 met the DSM-5 criteria.Those diagnosed with ADHD underwent assessments for letter,number,and figure attention.Following the exclusion of ADHD-H diagnoses,the detection rate rose to 96.0%,with 310 out of 323 cases identified.RESULTS This study yielded insights into the primary concerns of parents regarding their children's symptoms and validated the efficacy of a straightforward diagnostic test,offering valuable guidance for directing ADHD treatment,facilitating early detection,and enabling timely intervention.Our research delved into the predominant worries of parents across various age groups.Furthermore,we showcased the precision of the simple exclusion experiment in discerning between ADHD-I and ADHD-C in children.CONCLUSION Our study will help diagnose and guide future treatment directions for ADHD.
基金Supported by Henan Medical Science and Technology Research Joint Construction Project,No.LHGJ20190360。
文摘BACKGROUND Attention deficit hyperactivity disorder(ADHD)is a prevalent neurodevelopmental disorder in childhood.There is growing evidence that both preterm birth and maternal education levels substantially affect the likelihood of ADHD in children.However,there are limited systematic reviews and meta-analyses examining these associations.AIM To systematically review and conduct a meta-analysis on the association of preterm birth and maternal education level on the risk of ADHD in children.METHODS We conducted a comprehensive literature search across MEDLINE(PubMed),Web of Science,Embase,and the Cochrane Library,including studies published up to June 17,2024.Data synthesis was performed using random-effect models,and the quality of studies was assessed using the Newcastle-Ottawa Scale.RESULTS This study included twelve studies,which revealed a significant association between premature delivery and an increased risk of ADHD in children[odds ratio(OR)=2.76,95%confidence interval(CI):2.52-3.04,P<0.001,I^(2)=1.9%).Conversely,higher maternal education levels were significantly associated with a reduced risk of ADHD in children(OR=0.59,95%CI:0.48-0.73,P<0.001,I^(2)=47.1%).Subgroup analysis further indicated that maternal education levels significantly influenced ADHD risk,particularly in studies conducted in China(OR=0.59,95%CI:0.46-0.75,P<0.001,I^(2)=81.2%),while no significant association was observed in studies from other regions(OR=1.25,95%CI:0.66-2.40,P=0.495,I^(2)=92.3%).The sensitivity analysis confirmed the robustness of our findings,showing no significant publication bias.CONCLUSION This study found that preterm birth significantly increases the risk of ADHD in children,while a higher maternal education level serves as a protective factor against ADHD.To reduce the incidence of ADHD in children,public health policies should focus on early intervention for preterm infants and improving maternal education levels.
文摘BACKGROUND Unhealthy maternal diet leads to heavy metal exposures from the consumption of ultra-processed foods that may impact gene behavior across generations,creating conditions for the neurodevelopmental disorders known as autism and attention deficit/hyperactivity disorder(ADHD).Children with these disorders have difficulty metabolizing and excreting heavy metals from their bloodstream,and the severity of their symptoms correlates with the heavy metal levels measured in their blood.Psychiatrists may play a key role in helping parents reduce their ultra-processed food and dietary heavy metal intake by providing access to effective nutritional epigenetics education.AIM To test the efficacy of nutritional epigenetics instruction in reducing parental ultra-processed food intake.METHODS The study utilized a semi-randomized test and control group pretest-posttest pilot study design with participants recruited from parents having a learning-disabled child with autism or ADHD.Twenty-two parents who met the inclusion criteria were randomly selected to serve in the test(n=11)or control(n=11)group.The test group participated in the six-week online nutritional epigenetics tutorial,while the control group did not.The efficacy of the nutritional epigenetics instruction was determined by measuring changes in parent diet and attitude using data derived from an online diet survey administered to the participants during the pre and post intervention periods.Diet intake scores were derived for both ultra-processed and whole/organic foods.Paired sample t-tests were conducted to determine any differences in mean diet scores within each group.RESULTS There was a significant difference in the diet scores of the test group between the pre-and post-intervention periods.The parents in the test group significantly reduced their intake of ultra-processed foods with a preintervention diet score of 70(mean=5.385,SD=2.534)and a post-intervention diet score of 113(mean=8.692,SD=1.750)and the paired t-test analysis showing a significance of P<0.001.The test group also significantly increased their consumption of whole and/or organic foods with a pre-intervention diet score of 100(mean=5.882,SD=2.472)and post-intervention diet score of 121(mean=7.118,SD=2.390)and the paired t-test analysis showing a significance of P<0.05.CONCLUSION Here we show nutritional epigenetics education can be used to reduce ultra-processed food intake and improve attitude among parents having learning-disabled children with autism or ADHD.
文摘Introduction: Attention deficit hyperactivity disorder (ADHD) is a little-studied psychiatric pathology in our countries, and particularly here in Benin. Objectives: To calculate the prevalence and identify the factors associated with attention deficit hyperactivity disorder among adults in the commune of Parakou in 2022. Methods: Cross-sectional, descriptive, analytical study including subjects aged 18 and over. ADHD was assessed with the Adult ADHD Self Report Scale (ARSR-v1.1) and consequences with the Weiss functional impairment rating scale (WFIRS-S). Results: A total of 456 people were included in the study. The mean age of those surveyed was 25.9 ± 11.6 years. The prevalence of ADHD symptoms among the adults surveyed was 6.8%. The clinical form of ADHD with a predominance of inattention had a prevalence of 3.3%. After multivariate analysis, the factor associated with the presence of ADHD symptoms in adults in the commune of Parakou was: a poor relationship with the subject’s partner (p = 0.031, ORa = 6.5 [1.18-35.68]). Conclusion: ADHD is present in the community of Parakou and needs further attention.
基金supported by a Project of Shanghai Municipal Health and Family Planning Commission (201540114)a Key Specialty Project of Shanghai Municipal Health and Family Planning Commission grant for Child Psychiatry (ZK2015B01)a Research Project of the Shanghai Changning Health and Family Planning Commission grant (20164Y013)
文摘The neurocircuitries that constitute the corticostriato-thalamo-cortical（CSTC） circuit provide a framework for bridging gaps between neuroscience and executive function in attention deficit hyperactivity disorder（ADHD）, but it has been difficult to identify the mechanisms for regulating emotional problems from the understanding of ADHD comorbidity with disruptive behavior disorders（DBD）. Research based on ＂cool＇＇ and ＂hot＇＇executive functional theory and the dual pathway models,which are thought of as applied response inhibition and delay aversion, respectively, within the neuropsychological view of ADHD, has shed light on emotional responding before and after decontextualized stimuli, while CSTC circuit-related domains have been suggested to explain the different emotional symptoms of ADHD with or without comorbid DBD. This review discusses the role of abnormal connections in each CSTC circuit, especially in the emotion circuit, which may be responsible for targeted executive dysfunction at the neuroscience level. Thus, the two major domains – abstract thinking（cool） and emotional trait（hot） – trigger the mechanism of onset of ADHD.
文摘Attention deficit hyperactivity disorder （ADHD） is one of the most common mental disorders in childhood, with a high heritability about 60% to 90%. Serotonin is a monoamine neurotransmitter. Numerous studies have reported the association between the serotonin receptor family （5-HTR） gene polymorphisms and ADHD, but the results are still controversial. In this study, we conducted a meta-analysis of the association between 5-HTRIB, 5-HTR2A, and 5-HTR2C genetic variants and ADHD. The results showed that the 861G allele of 5-HTRIB SNP rs6296 could significantly increase the risk of ADHD （OR= 1.09, 95% CI： 1.01-1.18）; the 5-HTR2C gene rs518147 （OR=1.69, 95% CI： 1.38-2.07） and rs3813929 （OR = 1.57, 95% CI： 1.25-1.97） were all associated with the risk of ADHD. In addition, we also carried on a case- control study to explore the relevance between potential candidate genes 5-HTR1A, 5-HTRIE, 5-HTR3A and ADHD. The results indicated that 5-HTRIA rs6295 genotype （CC＋CG vs. GG OR=Z00, 95% CI： 1.23-3.27） and allele （OR=1.77, 95% CI： 1.16-2.72） models were statistically significantly different between case group and control group. This study is the first comprehensive exploration and summary of the association between serotonin receptor family genetic variations and ADHD, and it also provides more evidence for the etiology of ADHD.
基金We are thankful to The Gujarat Council on Science and Technology(GUJCOST)for providing financial support in form of minor research project(GUJCOST/MRP/2014-15/2592)
文摘Objective:To explore the effect and mechanism of action of Celastrus paniculatus oil on the treatment of perinatal rats with attention deficit hyperactivity disorder.Methods:In the perinatal stage,the rats were either isolated or administered with lead acetate to establish an animal model of attention deficit hyperactivity disorder.Atomoxetine served as the reference standard.Animals’behaviours were assessed through Y-maze,novel object preference,fear conditioning and residentintruder aggression tests.Oxidative stress parameters,bioamine concentration(dopamine,noradrenaline and 5-hydroxytryptamine),nerve growth factor,interleukin-6,nuclear factor-κB,and tumour necrosis factor(TNF)-αwere estimated.Synaptophysin immunohistochemical assay was performed.Results:Celastrus paniculatus oil significantly improved behavioural parameters in Y maze,novel object preference,discrimination index,fear conditioning and resident intruder aggressive tests.The treatment groups showed a decrease in malondialdehyde level.Changes in the levels of dopamine,noradrenaline,and serotonin were restored by Celastrus paniculatus oil.Celastrus paniculatus oil increased nerve growth factor and decreased interleukin-6,nuclear factor-κB,and TNF-α.Synaptophysin immunoreactivity was also improved by Celastrus paniculatus oil with alleviated reactive gliosis,degeneration,and vascular proliferation.Conclusions:This research shows the therapeutic potential of Celastrus paniculatus oil for the treatment of attention deficit hyperactivity disorder.
基金supported by grants from the National Natural Science Foundation of China (31460263, 30990263, and 31271171)the National Basic Research Development Program (973 Program) of China (2013CB835101)
文摘Attention deficit and hyperactivity disorder （ADHD）, a prevalent syndrome in children worldwide, is characterized by impulsivity, inappropriate inattention, and/or hyperactivity. It seriously afflicts cognitive development in childhood, and may lead to chronic under-achievement, academic failure, problematic peer relationships, and low self-esteem. There are at least three challenges for the treatment of ADHD. First, the neurobiological bases of its symptoms are still not clear. Second, the commonly prescribed medications, most showing short-term therapeutic efficacy but with a high risk of serious side-effects, are mainly based on a dopamine mechanism. Third, more novel and efficient animal models, especially in nonhuman primates, are required to accelerate the development of new medications. In this article, we review research progress in the related fields, focusing on our previous studies showing that blockade of prefrontal cortical a2A-adrenoceptors in monkeys produces almost all the typical behavioral symptoms of ADHD.
文摘BACKGROUND Iron plays an important role in neurodevelopmental functions in the brain.Serum ferritin levels are different in children with attention deficit hyperactivity disorder and tic disorder than in healthy children.AIM To explore the current status of iron deficiency in children with neurodevelopmental disorders and its sex and age effects.METHODS A total of 1565 children with attention deficit hyperactivity disorder(ADHD),1694 children with tic disorder(TD),93 children with ASD and 1997 healthy control children were included between January 1,2020,and December 31,2021 at Beijing Children's Hospital.We describe the differences in age levels and ferritin levels between different disease groups and their sex differences.The differences between the sexes in each disease were analyzed using the t test.The incidence rate of low serum ferritin was used to describe the differences between different diseases and different age groups.A chi-square test was used to analyze the difference in the incidence of low serum ferritin between the disease group and the control group.Analysis of variance was used for comparisons between subgroups,and regression analysis was used for confounding factor control.RESULTS A total of 1565 ADHD patients aged 5-12 years were included in this study,and the average serum ferritin levels of male and female children were 36.82±20.64μg/L and 35.64±18.56μg/L,respectively.A total of 1694 TD patients aged 5-12 years were included in this study,and the average serum ferritin levels of male and female children were 35.72±20.15μg/L and 34.54±22.12μg/L,respectively.As age increased,the incidence of low serum ferritin in ADHD and TD first decreased and then increased,and 10 years old was the turning point of rising levels.The incidence of ADHD with low serum ferritin was 8.37%,the incidence of TD with low serum ferritin was 11.04%,and the incidence of the healthy control group with low serum ferritin was 8.61%,among which male children with TD accounted for 9.25%and female children with TD accounted for 11.62%.There was a significant difference among the three groups(P<0.05).In addition,there were 93 children with ASD with an average serum ferritin level of 30.99±18.11μg/L and a serum ferritin incidence of 15.05%.CONCLUSION In conclusion,low serum ferritin is not a risk factor for ADHD or TD.The incidence of low serum ferritin levels in children with ADHD and TD between 5 and 12 years old decreases first and then increases with age.
文摘In order to study the treatment of the children with attention deficit hyperactivity disorder (ADHD), the integrated visual and auditory continuous performance test (IVA-CPT) was clinically applied to evaluate the effectiveness of electroencephalogram (EEG) biofeedback training. Of all the 60 children with ADHD aged more than 6 years, the effective rate of EEG biofeedback training was 91.6 % after 40 sessions of EEG biofeedback training. Before and after treatment by EEG biofeedback training, the overall indexes of IVA were significantly improved among predominately inattentive, hyperactive, and combined subtype of children with ADHD (P<0.001). It was suggested that EEG biofeedback training was an effective and vital treatment on children with ADHD.
基金supported in part by the Institute for Basic Science(to HP)No.IBS-R015-D1
文摘Attention deficit hyperactivity disorder（ADHD） is a pervasive psychiatric disorder that affects both children and adults. Adult male and female patients with ADHD are differentially affected, but few studies have explored the differences. The purpose of this study was to quantify differences between adult male and female patients with ADHD based on neuroimaging and connectivity analysis. Resting-state functional magnetic resonance imaging scans were obtained and preprocessed in 82 patients. Group-wise differences between male and female patients were quantified using degree centrality for different brain regions. The medial-, middle-, and inferior-frontal gyrus, superior parietal lobule, precuneus, supramarginal gyrus, superior- and middle-temporal gyrus, middle occipital gyrus, and cuneus were identified as regions with significant group-wise differences. The identified regions were correlated with clinical scores reflecting depression and anxiety and significant correlations were found. Adult ADHD patients exhibit different levels of depression and anxiety depending on sex, and our study provides insight into how changes in brain circuitry might differentially impact male and female ADHD patients.
文摘Social functioning is a key domain of impairment in both autism spectrum disorder(ASD)and attention-deficit/hyperactivity disorder(ADHD).This review adopts the social information-processing model as the theoretical framework to compare and contrast the deficits of ASD and ADHD at each of the six steps of social information-processing.Both disorders show deficits at each step,but the nature and origins of the deficits are different.Thus,while both disorders exhibit a common outcome of social impairment,the exact pathways that each disorder traverses along the six steps of social information-processing are different.For ASD,there is a social knowledge/behaviour deficit arising from difficulties in social/emotional cue detection,encoding,and interpretation,leading to problems in joining and initiating social interaction.For ADHD,there is a performance deficit incurred by disruption arising from the ADHD symptoms of inattention and hyperactivity/impulsivity,while its acquisition capacity on social knowledge is relatively intact.The inattentive,intrusive,and impulsive behaviours of ADHD unsettle social interaction.Finally,this review proposes training targets for intervention along the six steps of the social information-processing model for ASD and ADHD,as well as areas for future research in further elucidating the social impairment of the two disorders.
文摘Objectives:Compare and relate the performance of schoolchildren with Attention Deficit Hyperactivity Disorder(ADHD)and with good academic performance in the visual-motor perceptual and reading processes.Method:Twenty schoolchildren,of both genders,aged between nine and 11 years old,participated in this study.They were divided into two groups:Group I(GI):comprising 10 students diagnosed with ADHD;and Group II(GII):10 students with good academic performance paired according to gender,age group,and educational level with GI.All students were submitted to the Developmental Test of Visual Perception(DTVP 3)and Reading Processes Assessment Protocol(PROLEC).Results:There was lower performance of GI compared to GII in the subtests of copying,eye-hand coordination,and figure-ground in the standard score of general visual perception and visual-motor integration.GI presented lower performance in all reading processes except for the punctuation marks test.There was a statistically significant difference in the comparison between GI and GII regarding the classification of reading processes.A relationship was identified between the reading and visual perception subtests in the GI students,demonstrating a relationship between the visual perceptual motor skills and the reading processes in the group of students with ADHD.Conclusion:Schoolchildren with ADHD performed less well than their peers with good academic performance in the visual-motor perceptual and reading skills;such that the worse their performance in the visual-motor perceptual processes,the worse their performance in the reading processes.
