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1.
Ital J Pediatr ; 50(1): 197, 2024 Sep 27.
Article in English | MEDLINE | ID: mdl-39334431

ABSTRACT

BACKGROUND: Docosahexaenoic acid (DHA) has been reported to be associated with the children's neurodevelopment, who may be exposed to tobacco smoke simultaneously. The evidence about joint effect of DHA intake and tobacco smoke exposure on children and adolescents' learning disabilities (LD) was limited. The objective of this study was to assess the joint effect of DHA intake and tobacco smoke exposure on children and adolescents' LD. METHODS: A cross-sectional analysis of the NHANES 1999-2004 was performed. Children and adolescents aged 6-15 years old were included. The outcome was diagnosed by parental report of ever health professionals or school representative-identified LD. Dietary DHA intake data were obtained by food frequency questionnaire and tobacco smoke exposure levels were evaluated by serum cotinine levels. Weighted univariable and multivariate logistic regression analyses were conducted to determine the joint effect of DHA intake and tobacco smoke exposure on LD in children and adolescents, with odds ratios (ORs) and 95% confidence intervals (CIs). This joint association was further assessed after stratification by age, gender, body mass index, the history of attention deficit disorder and seen mental health professional. RESULTS: We identified 5,247 children and adolescents in present study, of whom 593 (11.30%) had LD. After adjusting covariates, we observed children and adolescents with DHA intake (OR = 0.76, 95%CI: 0.61-0.96) was related to lower incidence of LD; children who exposure to tobacco smoke was related to higher incidence of LD (OR = 1.54, 95%CI: 1.07-2.23); children and adolescents who exposure to tobacco smoke and without DHA intake were related to highest odds of LD (OR = 2.08, 95%CI: 1.37-3.17, P for trend = 0.042), that was, DHA and tobacco smoke exposure may have a joint effect on the odds of LD in children and adolescents. Subgroup analyses suggested this joint effect was robust especially among children and adolescents with normal & underweight BMI and without the history of attention deficit disorder and seen mental health professional. CONCLUSION: Increasing the DHA intake and reducing tobacco smoke exposure may have a potential role in the prevention of LD in children and adolescents. This joint effect warrants further investigation by large-scale prospective study.


Subject(s)
Docosahexaenoic Acids , Learning Disabilities , Nutrition Surveys , Tobacco Smoke Pollution , Humans , Adolescent , Child , Cross-Sectional Studies , Female , Male , Tobacco Smoke Pollution/adverse effects , Learning Disabilities/epidemiology , Learning Disabilities/etiology , United States/epidemiology
2.
Am J Otolaryngol ; 45(5): 104439, 2024.
Article in English | MEDLINE | ID: mdl-39068816

ABSTRACT

PURPOSE: The main aim of this systematic review was to investigate the possible association between hearing loss [and/or history of otitis media with effusion (OME)] and learning difficulties in children. Secondary aims were to: (i) investigate if deaf and hard of hearing (DHH) children with learning difficulties might show different clinical and neuropsychological features compared with those with other neurodevelopmental disorders; (ii) identify possible predictors of learning difficulty in DHH children. METHODS: A review was conducted of the scientific literature reported by Pubmed, Cochrane and Scopus databases. The following inclusion criteria were used: (i) studies published after 2000; (ii) studies conducted considering subjects with age < 18 years; (iii) studies considering patients who showed both learning difficulties and hearing loss and/or episodes of OME; (iv) articles written in English. The exclusion criteria were: (i) presence in the studied cohort of any other proven comorbidities, other than hearing loss and/or OME; (ii) non-original studies. RESULTS: A total of 924 studies were identified. Four were reviewed after applying the above criteria. From their analysis it emerged that: (i) children with hearing loss who had undergone a diagnostic and rehabilitation program before 6 months of age had better levels of K readiness and language and literacy skills compared to those who had undergone it after 6 months; (ii) higher frequency of episodes of OME and the presence of a conductive hearing loss during the period of language acquisition was associated to lower scores in reading skills; (iii) reading difficulties found in subjects with hearing loss had similar characteristics to those with language difficulties. CONCLUSIONS: There is a dearth of information about this topic. Further investigations are therefore necessary on children of various ages with hearing loss to disclose learning difficulties in reading and writing abilities using current diagnostic tools.


Subject(s)
Hearing Loss , Learning Disabilities , Humans , Child , Learning Disabilities/complications , Learning Disabilities/etiology , Hearing Loss/etiology , Adolescent , Otitis Media with Effusion/complications , Otitis Media with Effusion/diagnosis , Male , Child, Preschool , Female
3.
Front Public Health ; 12: 1386137, 2024.
Article in English | MEDLINE | ID: mdl-39081356

ABSTRACT

Background: Studies have found maternal smoking during pregnancy was linked to attention-deficit/hyperactivity disorder (ADHD) risk. It is unclear if maternal smoking cessation during pregnancy lowers ADHD and learning disability (LD) risk in offspring. This study aimed to explore the associations between maternal smoking cessation during pregnancy and ADHD and LD risk in offspring. Methods: Data from the National Health and Nutrition Examination Survey 1999-2004 (8,068 participants) were used. Logistic regression was used to analyze the associations between maternal smoking and smoking cessation during pregnancy and ADHD and LD risk in offspring. Results: Compared to non-smokers' offspring, maternal smoking during pregnancy increased the risk of ADHD (odds ratios [OR] = 2.07, 95% confidence interval [CI]: 1.67-2.56) and LD (OR = 1.93, 95% CI: 1.61-2.31) in offspring, even if mothers quit smoking later (ORADHD = 1.91, 95%CIADHD: 1.38-2.65, ORLD = 1.65, 95%CILD: 1.24-2.19). Further analysis of the timing of initiation of smoking cessation during pregnancy revealed that, compared to non-smokers' offspring, maternal quitting smoking in the first trimester still posed an increased risk of ADHD (OR = 1.72, 95% CI: 1.41-2.61) and LD (OR = 1.52, 95% CI: 1.06-2.17) in offspring. Maternal quitting smoking in the second or third trimester also had a significantly increased risk of ADHD (OR = 2.13, 95% CI: 1.26-3.61) and LD (OR = 1.82, 95% CI: 1.16-2.87) in offspring. Furthermore, maternal smoking but never quitting during pregnancy had the highest risk of ADHD (OR = 2.17, 95% CI: 1.69-2.79) and LD (OR = 2.10, 95% CI: 1.70-2.58) in offspring. Interestingly, a trend toward a gradual increase in the risk-adjusted OR for ADHD and LD risk was observed among the three groups: maternal quitting smoking in the first trimester, maternal quitting smoking in the second or third trimester, and maternal smoking but never quitting. Conclusion: Maternal smoking cessation in the first trimester still poses an increased risk of ADHD and LD in offspring. Furthermore, it seems that the later the mothers quit smoking during pregnancy, the higher the risk of ADHD and LD in their offspring. Therefore, early intervention of maternal smoking in preconception and prenatal care is vital for offspring neurodevelopment.


Subject(s)
Attention Deficit Disorder with Hyperactivity , Learning Disabilities , Pregnancy Trimester, First , Smoking Cessation , Humans , Attention Deficit Disorder with Hyperactivity/epidemiology , Attention Deficit Disorder with Hyperactivity/etiology , Female , Pregnancy , Smoking Cessation/statistics & numerical data , Adult , Male , Learning Disabilities/etiology , Learning Disabilities/epidemiology , Prenatal Exposure Delayed Effects , Risk Factors , Nutrition Surveys , Child , Smoking/adverse effects , Mothers/statistics & numerical data
4.
Neurosci Bull ; 40(9): 1287-1298, 2024 Sep.
Article in English | MEDLINE | ID: mdl-38807019

ABSTRACT

Alcohol abuse induces various neurological disorders including motor learning deficits, possibly by affecting neuronal and astrocytic activity. Physical exercise is one effective approach to remediate synaptic loss and motor deficits as shown by our previous works. In this study, we unrevealed the role of exercise training in the recovery of cortical neuronal and astrocytic functions. Using a chronic alcohol injection mouse model, we found the hyperreactivity of astrocytes along with dendritic spine loss plus lower neuronal activity in the primary motor cortex. Persistent treadmill exercise training, on the other hand, improved neural spine formation and inhibited reactive astrocytes, alleviating motor learning deficits induced by alcohol exposure. These data collectively support the potency of endurance exercise in the rehabilitation of motor functions under alcohol abuse.


Subject(s)
Astrocytes , Ethanol , Mice, Inbred C57BL , Motor Cortex , Neurons , Animals , Male , Ethanol/toxicity , Motor Cortex/physiopathology , Neurons/physiology , Physical Conditioning, Animal/physiology , Physical Conditioning, Animal/methods , Mice , Disease Models, Animal , Learning Disabilities/etiology , Dendritic Spines/pathology , Alcoholism/physiopathology , Alcoholism/therapy , Learning/physiology , Learning/drug effects
5.
Epilepsy Behav ; 156: 109837, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38759428

ABSTRACT

OBJECTIVE: A previous investigation of people with newly diagnosed focal epilepsy participating in the Human Epilepsy Project 1 (HEP1) revealed an association between learning difficulties and structural brain differences, suggesting an underlying relationship prior to seizure onset. To investigate physicians' practices of documentation learning difficulties during clinical encounters, we conducted a review of initial epileptologist encounter notes from HEP1 participants who self-reported early life learning difficulties separately as part of study enrollment. METHODS: HEP1 enrolled 67 North American participants between June 2012 and November 2017 who self-reported one or more difficulties with learning (i.e., having repeated grade, receiving learning support/remediation, and/or formal diagnosis of a learning disability) prior to epilepsy diagnosis as part of the study enrollment. The epileptologist's initial encounter note was then reviewed in detail for each of these participants. Documentation of learning issues and specific diagnoses of learning disabilities was compared to participant characteristics. Regression analysis was used to test for any independent associations between participant characteristics and physician documentation of learning difficulties. RESULTS: There were significant independent relationships between age, sex, and physician documentation of learning difficulties. On average, participants ages 22 and younger were 12.12 times more likely to have their learning difficulties documented compared to those 23 years and older (95 % CI: 2.226 to 66.02, p = 0.004). Additionally, male participants had 7.2 times greater odds of having their learning difficulty documented compared to female participants (95 % CI: 1.538 to 33.717, p = 0.012). There were no significant independent associations between race, language, employment, or geographical region. SIGNIFICANCE: These findings highlight disparities in physician documentation for people with newly diagnosed focal epilepsy and a history of learning difficulties. In the HEP1 cohort, physicians were more likely to document learning difficulties in males and in younger individuals. Systematic practice standards are important for reducing healthcare disparities across populations, improving clinical care to individuals, as well as enabling more accurate retrospective study of clinical phenomenon.


Subject(s)
Epilepsies, Partial , Learning Disabilities , Humans , Male , Female , Epilepsies, Partial/diagnosis , Learning Disabilities/diagnosis , Learning Disabilities/etiology , Adult , Young Adult , Adolescent , Middle Aged , Child , Age Factors , Documentation
6.
Physiol Res ; 73(2): 205-216, 2024 Apr 30.
Article in English | MEDLINE | ID: mdl-38710050

ABSTRACT

ADHD is a common chronic neurodevelopmental disorder and is characterized by persistent inattention, hyperactivity, impulsivity and are often accompanied by learning and memory impairment. Great evidence has shown that learning and memory impairment of ADHD plays an important role in its executive function deficits, which seriously affects the development of academic, cognitive and daily social skills and will cause a serious burden on families and society. With the increasing attention paid to learning and memory impairment in ADHD, relevant research is gradually increasing. In this article, we will present the current research results of learning and memory impairment in ADHD from the following aspects. Firstly, the animal models of ADHD, which display the core symptoms of ADHD as well as with learning and memory impairment. Secondly, the molecular mechanism of has explored, including some neurotransmitters, receptors, RNAs, etc. Thirdly, the susceptibility gene of ADHD related to the learning and impairment in order to have a more comprehensive understanding of the pathogenesis. Key words: Learning and memory, ADHD, Review.


Subject(s)
Attention Deficit Disorder with Hyperactivity , Memory Disorders , Attention Deficit Disorder with Hyperactivity/psychology , Attention Deficit Disorder with Hyperactivity/genetics , Humans , Animals , Memory Disorders/psychology , Memory Disorders/etiology , Learning , Disease Models, Animal , Learning Disabilities/psychology , Learning Disabilities/etiology , Memory
7.
Neuroimage Clin ; 42: 103601, 2024.
Article in English | MEDLINE | ID: mdl-38579595

ABSTRACT

BACKGROUND: Strokes frequently result in long-term motor deficits, imposing significant personal and economic burdens. However, our understanding of the underlying neural mechanisms governing motor learning in stroke survivors remains limited - a fact that poses significant challenges to the development and optimisation of therapeutic strategies. OBJECTIVE: This study investigates the diversity in motor learning aptitude and its associated neurological mechanisms. We hypothesised that stroke patients exhibit compromised overall motor learning capacity, which is associated with altered activity and connectivity patterns in the motor- and default-mode-network in the brain. METHODS: We assessed a cohort of 40 chronic-stage, mildly impaired stroke survivors and 39 age-matched healthy controls using functional Magnetic Resonance Imaging (fMRI) and connectivity analyses. We focused on neural activity and connectivity patterns during an unilateral motor sequence learning task performed with the unimpaired or non-dominant hand. Primary outcome measures included task-induced changes in neural activity and network connectivity. RESULTS: Compared to controls, stroke patients showed significantly reduced motor learning capacity, associated with diminished cerebral lateralization. Task induced activity modulation was reduced in the motor network but increased in the default mode network. The modulated activation strength was associated with an opposing trend in task-induced functional connectivity, with increased connectivity in the motor network and decreased connectivity in the DMN. CONCLUSIONS: Stroke patients demonstrate altered neural activity and connectivity patterns during motor learning with their unaffected hand, potentially contributing to globally impaired motor learning skills. The reduced ability to lateralize cerebral activation, along with the enhanced connectivity between the right and left motor cortices in these patients, may signify maladaptive neural processes that impede motor adaptation, possibly affecting long-term rehabilitation post-stroke. The contrasting pattern of activity modulation and connectivity alteration in the default mode network suggests a nuanced role of this network in post-stroke motor learning. These insights could have significant implications for the development of customised rehabilitation strategies for stroke patients.


Subject(s)
Magnetic Resonance Imaging , Nerve Net , Stroke , Humans , Male , Female , Middle Aged , Stroke/physiopathology , Stroke/complications , Stroke/diagnostic imaging , Aged , Nerve Net/physiopathology , Nerve Net/diagnostic imaging , Adult , Learning/physiology , Brain/physiopathology , Brain/diagnostic imaging , Motor Skills/physiology , Learning Disabilities/physiopathology , Learning Disabilities/etiology , Connectome/methods
8.
Neurosci Biobehav Rev ; 161: 105688, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38670298

ABSTRACT

Pyramidal neurons have a pivotal role in the cognitive capabilities of neocortex. Though they have been predominantly modeled as integrate-and-fire point processors, many of them have another point of input integration in their apical dendrites that is central to mechanisms endowing them with the sensitivity to context that underlies basic cognitive capabilities. Here we review evidence implicating impairments of those mechanisms in three major neurodevelopmental disabilities, fragile X, Down syndrome, and fetal alcohol spectrum disorders. Multiple dysfunctions of the mechanisms by which pyramidal cells are sensitive to context are found to be implicated in all three syndromes. Further deciphering of these cellular mechanisms would lead to the understanding of and therapies for learning disabilities beyond any that are currently available.


Subject(s)
Learning Disabilities , Humans , Animals , Learning Disabilities/physiopathology , Learning Disabilities/etiology , Pyramidal Cells/physiology , Fetal Alcohol Spectrum Disorders/physiopathology , Neurodevelopmental Disorders/physiopathology , Down Syndrome/physiopathology , Fragile X Syndrome/physiopathology
9.
J Neurooncol ; 167(2): 315-322, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38409461

ABSTRACT

PURPOSE: Neurofibromatosis (NF) is associated with low quality-of-life (QoL). Learning disabilities are prevalent among those with NF, further worsening QoL and potentially impacting benefits from mind-body and educational interventions, yet research on this population is scarce. Here, we address this gap by comparing NF patients with and without learning disabilities on QoL at baseline and QoL-related gains following two interventions. METHODS: Secondary analysis of a fully-powered RCT of a mind-body program (Relaxation Response Resiliency Program for NF; 3RP-NF) versus an educational program (Health Enhancement Program for NF; HEP-NF) among 228 adults with NF. Participants reported QoL in four domains (Physical Health, Psychological, Social Relationships, and Environmental). We compare data at baseline, post-treatment, and 12-month follow-up, controlling for intervention type. RESULTS: At baseline, individuals with NF and learning disabilities had lower Psychological (T = -3.0, p = .001) and Environmental (T = -3.8, p < .001) QoL compared to those without learning disabilities. Both programs significantly improved all QoL domains (ps < .0001-0.002) from baseline to post-treatment, regardless of learning disability status. However, those with learning disabilities exceeded the minimal clinically important difference in only one domain (Psychological QoL) compared to three domains in individuals without learning disabilities. Moreover, those with learning disabilities failed to sustain statistically significant gains in Psychological QoL at 12-months, while those without learning disabilities sustained all gains. CONCLUSION: Adults with NF and learning disabilities have lower Psychological and Environmental QoL. While interventions show promise in improving QoL regardless of learning disabilities, additional measures may bolster clinical benefit and sustainability among those with learning disabilities.


Subject(s)
Learning Disabilities , Neurofibromatoses , Adult , Humans , Quality of Life , Neurofibromatoses/psychology , Relaxation Therapy , Learning Disabilities/etiology , Learning Disabilities/therapy , Health Education
10.
Arch Clin Neuropsychol ; 39(5): 618-625, 2024 Jul 24.
Article in English | MEDLINE | ID: mdl-38364297

ABSTRACT

OBJECTIVE: To examine baseline neurocognitive functioning among adolescent athletes on the autism spectrum based on self-reported level of academic performance. METHOD: Participants in this cross-sectional, observational study were 6,441 adolescent athletes with a self-reported diagnosis of autism who completed pre-season neurocognitive testing using Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT); 4,742 reported a co-occurring learning disorder (LD), and 6,612 individuals without autism or LD were included as a control group. The majority (57%) self-reported Average Academic Performance, 39% Above Average, and 4% Below Average performance. RESULTS: Athletes with self-reported autism (with or without LD; 12.2%) were 2.74x (95% CI: 2.17-2.82) more likely to fall below cutoffs for ImPACT Embedded Invalidity Indicators (EVIs), with a significant interaction between self-reported Diagnosis and Academic Performance; individuals with co-occurring autism and LD who reported Below Average Academic Performance had the greatest likelihood of scoring below cutoffs (22%), followed by ASD without LD (14.8%) and Controls (14.6%) with Below Average Academic Performance. Analyses of variance (ANOVAs) revealed main effects of Diagnosis and Academic Performance on neurocognitive performance, with interactions on all ImPACT Composite Scores except Processing Speed. CONCLUSION: Athletes with self-reported ASD are more likely to fall below ImPACT EVIs and score worse on ImPACT, with greater likelihood/worse performance related to level of academic functioning. Academic performance should be considered when interpreting neurocognitive testing data, to best index neuropsychological functioning associated with concussion in this population. The current findings highlight the importance of individual participant baseline neuropsychological testing for individuals on the autism spectrum.


Subject(s)
Athletes , Autism Spectrum Disorder , Brain Concussion , Neuropsychological Tests , Humans , Male , Female , Adolescent , Neuropsychological Tests/statistics & numerical data , Neuropsychological Tests/standards , Autism Spectrum Disorder/diagnosis , Autism Spectrum Disorder/complications , Cross-Sectional Studies , Brain Concussion/diagnosis , Brain Concussion/complications , Athletes/psychology , Athletic Injuries/complications , Athletic Injuries/diagnosis , Academic Performance , Learning Disabilities/diagnosis , Learning Disabilities/etiology , Students , Self Report , Child
11.
PLoS One ; 18(10): e0293067, 2023.
Article in English | MEDLINE | ID: mdl-37862316

ABSTRACT

BACKGROUND: Developmental learning disorder (DLD) belongs to neurodevelopmental disorders because it results from the developmental neurodiversity of the brain. The main causes of DLD are genetics, but environmental factors, like inadequate supply of oxygen during pregnancy or labor, are considered. METHODS: Our search strategy will consist of electronic databases (PubMed, PsycINFO, Web of Science, EMBASE, and Cochrane Library) and hand searching. The observational studies including cohort and case-control studies will be included. The primary outcome will be (DLD). Screening and eligibility will be done independently by two reviewers based on pre-specified eligibility criteria. Data extraction will be based on a pre-pilot data extraction form, and conducted by two authors independently. Study quality will be assessed by two authors independently. Any discrepancies identified at any stage of the review will be resolved by discussion or/and consultation with another reviewer. We plan a narrative and tabular summary of the findings. DISCUSSION: This systematic review of aetiology follows the traditional approach to evidence-based healthcare. This secondary research will assess the association between hypoxia and DLD by assessing the relationship of health-related event and outcome and examining the association between them. This review can provide information for healthcare professionals and policymakers indicating whether taking into account information about hypoxia should be permanently included in the diagnostic ontogenetic interview in the process of diagnosing neurodevelopmental disorders. SYSTEMATIC REVIEW REGISTRATION: PROSPERO: CRD42022371387.


Subject(s)
Learning Disabilities , Parturition , Pregnancy , Female , Humans , Child , Systematic Reviews as Topic , Learning , Learning Disabilities/etiology , Hypoxia , Review Literature as Topic
12.
JAMA Pediatr ; 177(10): 1039-1046, 2023 10 01.
Article in English | MEDLINE | ID: mdl-37603356

ABSTRACT

Importance: Whether some domains of child development are specifically associated with screen time and whether the association continues with age remain unknown. Objective: To examine the association between screen time exposure among children aged 1 year and 5 domains of developmental delay (communication, gross motor, fine motor, problem-solving, and personal and social skills) at age 2 and 4 years. Design, Participants, and Setting: This cohort study was conducted under the Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study. Pregnant women at 50 obstetric clinics and hospitals in the Miyagi and Iwate prefectures in Japan were recruited into the study between July 2013 and March 2017. The information was collected prospectively, and 7097 mother-child pairs were included in the analysis. Data analysis was performed on March 20, 2023. Exposure: Four categories of screen time exposure were identified for children aged 1 year (<1, 1 to <2, 2 to <4, or ≥4 h/d). Main Outcomes and Measures: Developmental delays in the 5 domains for children aged 2 and 4 years were assessed using the Japanese version of the Ages & Stages Questionnaires, Third Edition. Each domain ranged from 0 to 60 points. Developmental delay was defined if the total score for each domain was less than 2 SDs from its mean score. Results: Of the 7097 children in this study, 3674 were boys (51.8%) and 3423 were girls (48.2%). With regard to screen time exposure per day, 3440 children (48.5%) had less than 1 hour, 2095 (29.5%) had 1 to less than 2 hours, 1272 (17.9%) had 2 to less than 4 hours, and 290 (4.1%) had 4 or more hours. Children's screen time was associated with a higher risk of developmental delay at age 2 years in the communication (odds ratio [OR], 1.61 [95% CI, 1.23-2.10] for 1 to <2 h/d; 2.04 [1.52-2.74] for 2 to <4 h/d; 4.78 [3.24-7.06] for ≥4 vs <1 h/d), fine motor (1.74 [1.09-2.79] for ≥4 vs <1 h/d), problem-solving (1.40 [1.02-1.92] for 2 to <4 h/d; 2.67 [1.72-4.14] for ≥4 vs <1 h/d), and personal and social skills (2.10 [1.39-3.18] for ≥4 vs <1 h/d) domains. Regarding risk of developmental delay at age 4 years, associations were identified in the communication (OR, 1.64 [95% CI, 1.20-2.25] for 2 to <4 h/d; 2.68 [1.68-4.27] for ≥4 vs <1 h/d) and problem-solving (1.91 [1.17-3.14] for ≥4 vs <1 h/d) domains. Conclusions and Relevance: In this study, greater screen time for children aged 1 year was associated with developmental delays in communication and problem-solving at ages 2 and 4 years. These findings suggest that domains of developmental delay should be considered separately in future discussions on screen time and child development.


Subject(s)
Child Development , Communication Disorders , Developmental Disabilities , Screen Time , Child, Preschool , Female , Humans , Infant , Male , Pregnancy , Cohort Studies , Communication , Japan , Developmental Disabilities/etiology , Communication Disorders/etiology , Problem Solving , Learning Disabilities/etiology
14.
Child Neuropsychol ; 29(5): 808-824, 2023 07.
Article in English | MEDLINE | ID: mdl-36278854

ABSTRACT

The aim of this study was to understand the risk of developing attention-deficit/hyperactivity disorder (ADHD) or learning disability (LD) after childhood traumatic brain injury (TBI) in a population-based birth cohort. Cases of TBI for children from birth to 10 years were confirmed and stratified by severity of injury. For each TBI case, two age-matched and sex-matched referents without TBI were identified from the same birth cohort. Presence of ADHD and LD before age 19 were confirmed using medical and/or school records. Associations between TBI exposure and subsequent ADHD or LD were assessed in multivariable Cox regression models, adjusting for maternal age, education, and race. The incidence rate of TBI before age 10 was 1,156 per 100,000 person-years. Children who had a TBI before age 10 were more likely to have met the research criteria for ADHD (hazard ratio [HR], 1.68; 95% CI, 1.15-2.45) or LD (HR, 1.29; 95% CI, 1.00-1.68) by age 19. No statistically significant associations were shown between TBI and ADHD or LD when restricted to definite and probable TBI cases (consistent with moderate to severe and mild TBI, respectively) and their referents. Significant associations were shown when the analysis was confined to possible TBI cases (consistent with concussive TBI) and their referents (ADHD: HR, 2.05; 95% CI, 1.31-3.20; and LD: HR, 1.42; 95% CI, 1.05-1.91). Increased risk for developing ADHD and LD by adulthood was shown particularly for children with the least-severe injuries, indicating that factors other than trauma-related altered brain function likely contribute to this risk.


Subject(s)
Attention Deficit Disorder with Hyperactivity , Brain Concussion , Brain Injuries, Traumatic , Brain Injuries , Learning Disabilities , Child , Humans , Adult , Young Adult , Attention Deficit Disorder with Hyperactivity/complications , Attention Deficit Disorder with Hyperactivity/epidemiology , Incidence , Cohort Studies , Birth Cohort , Brain Injuries, Traumatic/complications , Brain Injuries, Traumatic/epidemiology , Learning Disabilities/epidemiology , Learning Disabilities/etiology , Brain Injuries/complications , Brain Concussion/complications
15.
J Neural Transm (Vienna) ; 130(3): 409-424, 2023 03.
Article in English | MEDLINE | ID: mdl-36547695

ABSTRACT

Vision has a crucial role to play in human development and functioning. It is, therefore, not surprising that vision plays a fundamental role in the development of the child. As a consequence, an alteration in visual function is, therefore, likely to hinder the child's development. Although ocular disorders are well known, diagnosed and taken into account, cerebral visual impairments (CVI) resulting from post-chiasmatic damage are largely underdiagnosed. However, among the disorders resulting from an episode of perinatal asphyxia and/or associated with prematurity, or neonatal hypoglycaemia, CVIs are prominent. In this article, we focus on the role of the possible effects of CVI on a child's learning abilities, leading to major difficulty in disentangling the consequences of CVI from other neurodevelopmental disorders (NDD) such as dyslexia, dyscalculia, dysgraphia, attention-deficit/hyperactivity disorder (ADHD), developmental coordination disorder (DCD) and autism spectrum disorders (ASD). Although we focus here on the possible overlap between children with CVI and children with other NDD, De Witt et al. (Wit et al. Ear Hear 39:1-19, 2018) have raised exactly the same question regarding children with auditory processing disorders (the equivalent of CVI in the auditory modality). We underline how motor, social and cognitive development as well as academic success can be impaired by CVI and raise the question of the need for systematic evaluation for disorders of vision, visual perception and cognition in all children presenting with a NDD and/or previously born under adverse neurological conditions.


Subject(s)
Attention Deficit and Disruptive Behavior Disorders , Child Development , Learning Disabilities , Vision Disorders , Visual Cortex , Visual Perception , Vision, Ocular , Cognition , Humans , Child , Vision Disorders/complications , Vision Disorders/congenital , Learning Disabilities/etiology , Attention Deficit and Disruptive Behavior Disorders/etiology , Visual Cortex/abnormalities
16.
AJNR Am J Neuroradiol ; 43(7): 1042-1047, 2022 07.
Article in English | MEDLINE | ID: mdl-35680160

ABSTRACT

BACKGROUND AND PURPOSE: Verbal declarative memory performance relies on frontotemporal connectivity. The uncinate fasciculus is a major association tract connecting the frontal and temporal lobes. Hemispheric asymmetries contribute to various cognitive and neurobehavioral abilities. Here we investigated microstructural alterations and hemispheric asymmetry of the uncinate fasciculus and their possible correlation to memory performance of children with learning disorders attributed to verbal memory deficits. MATERIALS AND METHODS: Two groups of right-handed children with learning disorders attributed to verbal memory deficits and typically developing children (n = 20 and 22, respectively) underwent DTI on a 1.5T scanner. Tractography of the uncinate fasciculus in both hemispheres was performed, and fractional anisotropy and diffusivity indices (radial diffusivity, axial diffusivity, and trace) were obtained. The asymmetry index was calculated. Verbal memory was assessed using subsets of the Stanford Binet Intelligence Scale, 4th edition, a dyslexia assessment test, and the Illinois test of Psycholinguistic Abilities. Correlation between diffusion metrics and verbal memory performance was investigated in the learning disorders group. Also, hemispheric differences in each group were tested, and between-group comparisons were performed. RESULTS: Children with learning disorders showed absence of the normal left-greater-than-right asymmetry of fractional anisotropy and the normal right-greater-than-left asymmetry of radial diffusivity seen in typically developing children. Correlation with verbal memory subsets revealed that the higher the fractional anisotropy and asymmetry index, the better the rapid naming performance (P <.05) was. CONCLUSIONS: These findings demonstrated microstructural aberrations with reduction of hemispheric asymmetry of the uncinate fasciculus, which could disrupt the normal frontotemporal connectivity in children with learning disorders attributed to verbal memory deficits. This outcome gives more understanding of pathologic mechanisms underlying this disorder.


Subject(s)
Learning Disabilities , White Matter , Anisotropy , Child , Diffusion Tensor Imaging , Humans , Learning Disabilities/diagnostic imaging , Learning Disabilities/etiology , Learning Disabilities/pathology , Memory Disorders/diagnostic imaging , Memory Disorders/etiology , Memory Disorders/pathology , Uncinate Fasciculus , White Matter/diagnostic imaging , White Matter/pathology
17.
Distúrb. comun ; 34(1): e52385, mar. 2022. ilus, tab
Article in Portuguese | LILACS | ID: biblio-1396516

ABSTRACT

Introdução: Há influência positiva no desenvolvimento da linguagem, quando ocorre a exposição a um novo idioma. No entanto, quando se considera esse contexto em crianças com dificuldade de aprendizagem, o deficit apresentado na primeira língua pode ser transferido para o aprendizado da segunda. Objetivo: O objetivo do presente estudo é caracterizar o desempenho em processamento fonológico e leitura em três crianças com dificuldade de aprendizagem em escolas bilíngues português-inglês. Método: Os dados gerais sobre o desenvolvimento e desempenho nas habilidades de consciência fonológica, memória de trabalho fonológica, acesso ao léxico mental e leitura em três crianças de 8 a 9 anos de idade, cursando 2º e 3º ano do ensino fundamental foram descritos; todos com, ao menos, dois anos de exposição à escola bilíngue, especialmente na alfabetização. Na avaliação, foram aplicados os protocolos CONFIAS, Memória de Trabalho Fonológica, TENA, RAN e Protocolo de Avaliação da Compreensão Leitora de Textos Expositivos. Resultado: as crianças apresentaram desempenho aquém do esperado nas habilidades do processamento fonológico, na fluência da leitura oral, bem como na compreensão leitora. Conclusão: esses resultados podem contribuir tanto para a compreensão de aspectos da linguagem escrita na atuação do fonoaudiólogo com crianças bilíngues, quanto para as implicações clínicas e educacionais, haja vista a escassez de estudos nessa área, no Brasil.


Introduction: There is a positive influence on language development when there is exposure to a new language. However, when considering this context in children with learning difficulties, the deficits presented in the first language can be transferred to the learning of the second. Objective: The aim of the present study was to characterize the performance in phonological processing and reading in three children with learning difficulties from Brazilian-English bilingual schools. Method: General data on the development and performance in phonological awareness skills, phonological working memory, access to mental lexicon and reading in three children aged 8 to 9 years, attending the 2nd and 3rd year of elementary school were described; all with at least two years of exposure to bilingual school, especially in literacy. In the evaluation, the protocols CONFIAS, Phonological Working Memory, TENA, RAN and Protocol for Assessment of Reading Comprehension of Expository Texts were applied. Results: The children performed below expectations in terms of phonological processing skills, difficulties in oral reading fluency, as well as in reading comprehension. Conclusion: These results can contribute to the understanding of aspects of written language in the performance of speech therapists with bilingual children, regarding clinical and educational implications, given the scarcity of studies in this area in Brazil.;Introducción: Existe una influencia positiva en el desarrollo del lenguaje cuando hay exposición a un nuevo idioma. Sin embargo, al considerar este contexto en niños con dificultades de aprendizaje, los déficits presentados en el primer idioma se pueden trasladar al aprendizaje del segundo. Objetivo: El objetivo del presente estudio fue caracterizar el desempeño en procesamiento fonológico y lectura en tres niños con dificultades de aprendizaje de escuelas bilingües brasileño-inglés. Método: Se describieron datos generales sobre el desarrollo y desempeño en las habilidades de conciencia fonológica, memoria de trabajo fonológica, acceso al léxico mental y lectura en tres niños de 8 a 9 años de 2º y 3º de primaria; todos con al menos dos años de exposición a la escuela bilingüe, especialmente en alfabetización. En la evaluación se aplicaron los protocolos CONFIAS, Memoria Fonológica de Trabajo, TENA, RAN y Protocolo de Evaluación de la Comprensión Lectora de Textos Expositivos. Resultados: Los niños se desempeñaron por debajo de las expectativas en términos de habilidades de procesamiento fonológico, dificultades en la fluidez de la lectura oral, así como en la comprensión lectora. Conclusión: Estos resultados pueden contribuir a la comprensión de aspectos del lenguaje escrito en el desempeño de logopedas con niños bilingües, en cuanto a implicaciones clínicas y educativas, dada la escasez de estudios en esta área en Brasil.


Introduction: There is a positive influence on language development when there is exposure to a new language. However, when considering this context in children with learning difficulties, the deficits presented in the first language can be transferred to the learning of the second. Objective: The aim of the present study was to characterize the performance in phonological processing and reading in three children with learning difficulties from Brazilian-English bilingual schools. Method: General data on the development and performance in phonological awareness skills, phonological working memory, access to mental lexicon and reading in three children aged 8 to 9 years, attending the 2nd and 3rd year of elementary school were described; all with at least two years of exposure to bilingual school, especially in literacy. In the evaluation, the protocols CONFIAS, Phonological Working Memory, TENA, RAN and Protocol for Assessment of Reading Comprehension of Expository Texts were applied. Results: The children performed below expectations in terms of phonological processing skills, difficulties in oral reading fluency, as well as in reading comprehension. Conclusion: These results can contribute to the understanding of aspects of written language in the performance of speech therapists with bilingual children, regarding clinical and educational implications, given the scarcity of studies in this area in Brazil.;Introducción: Existe una influencia positiva en el desarrollo del lenguaje cuando hay exposición a un nuevo idioma. Sin embargo, al considerar este contexto en niños con dificultades de aprendizaje, los déficits presentados en el primer idioma se pueden trasladar al aprendizaje del segundo. Objetivo: El objetivo del presente estudio fue caracterizar el desempeño en procesamiento fonológico y lectura en tres niños con dificultades de aprendizaje de escuelas bilingües brasileño-inglés. Método: Se describieron datos generales sobre el desarrollo y desempeño en las habilidades de conciencia fonológica, memoria de trabajo fonológica, acceso al léxico mental y lectura en tres niños de 8 a 9 años de 2º y 3º de primaria; todos con al menos dos años de exposición a la escuela bilingüe, especialmente en alfabetización. En la evaluación se aplicaron los protocolos CONFIAS, Memoria Fonológica de Trabajo, TENA, RAN y Protocolo de Evaluación de la Comprensión Lectora de Textos Expositivos. Resultados: Los niños se desempeñaron por debajo de las expectativas en términos de habilidades de procesamiento fonológico, dificultades en la fluidez de la lectura oral, así como en la comprensión lectora. Conclusión: Estos resultados pueden contribuir a la comprensión de aspectos del lenguaje escrito en el desempeño de logopedas con niños bilingües, en cuanto a implicaciones clínicas y educativas, dada la escasez de estudios en esta área en Brasil.


Subject(s)
Humans , Male , Female , Child , Reading , Phonetics , Multilingualism , Learning Disabilities/etiology , Underachievement , Education, Primary and Secondary , Language Disorders/etiology
18.
BMJ Case Rep ; 15(2)2022 Feb 10.
Article in English | MEDLINE | ID: mdl-35144960

ABSTRACT

Neck of femur fractures (NOFF) are one of the major health concerns, with their incidence and the cost of care rising each year. Though a plethora of literature remains available on NOFF and its management, we found very little evidence for management of NOFF in patients with short stature and learning disability. Because of this unique combination of conditions in our patient, we had to deviate from the standard practice in terms of the implant choice. The usage of cemented Asian C stem AMT with a 36 mm metallic head which is normally reserved for total hip replacements, helped us obtain the desired hip joint stability. This was supplemented by early involvement of the learning disability physiotherapy team and eventually the patient had a satisfactory outcome at 8 months of follow-up. This rare amalgamation of NOFF, short stature and learning disability deserves more attention which our case report hopes to achieve.


Subject(s)
Arthroplasty, Replacement, Hip , Femoral Fractures , Femoral Neck Fractures , Learning Disabilities , Adult , Femoral Fractures/complications , Femoral Fractures/diagnostic imaging , Femoral Fractures/surgery , Femoral Neck Fractures/diagnostic imaging , Femoral Neck Fractures/surgery , Fracture Fixation, Internal , Humans , Learning Disabilities/etiology , Treatment Outcome
19.
Child Care Health Dev ; 48(1): 55-67, 2022 01.
Article in English | MEDLINE | ID: mdl-34331711

ABSTRACT

BACKGROUND: The study aims to investigate the social, emotional, and behavioral challenges in children with a specific learning disability (SLD) and to identify the factors that accompany these problems by screening with the Strengths and Difficulties Questionnaire (SDQ). METHODS: The descriptive study was conducted on 278 children with SLD. Strengths and difficulties in children were evaluated by the SDQ applied to their mothers. The percentage of cases above the cut-off limits of the SDQ was calculated. Chi-square test and multiple logistic regression analysis were used for analysis. RESULTS: The mean (SD) total SDQ score was 15.8 (6.5). The percentage of scores of abnormal total difficulties in SLD was 47.8%. Multivariate analysis revealed that cases exposed to antenatal smoking had higher odds ratio of abnormal emotional symptoms and abnormal total difficulties; cases with poor familial income and the presence of a history of antenatal smoking exposure showed considerably higher odds ratio of conduct problems; cases with younger age at the diagnosis of SLD, dyscalculia, extreme duration of preschool screen time (≥4 h), and history of hospitalization had significantly higher odds ratio for hyperactivity-inattention problems; and cases having shorter breastfeeding duration had higher odds ratio of peer problems compared to counterparts. CONCLUSION: Children with SLD have a high score on the SDQ. Practitioners could especially give guidance and support to families with financial problems and those having a child with an early age at diagnosis, exposure to antenatal smoking, short breastfeeding period, early age of the first screen use, and long screen exposure duration during the preschool period.


Subject(s)
Learning Disabilities , Problem Behavior , Child , Child, Preschool , Educational Status , Emotions , Female , Humans , Learning Disabilities/epidemiology , Learning Disabilities/etiology , Pregnancy , Surveys and Questionnaires
20.
Arch Dis Child Fetal Neonatal Ed ; 107(1): 98-104, 2022 Jan.
Article in English | MEDLINE | ID: mdl-33597225

ABSTRACT

Illicit use of opioids is a global health crisis with major implications for women and children. Strategies for managing opioid use disorder (OUD) in pregnancy have been tested over the past 40 years, but studies have focused on maternal and pregnancy outcomes, with less attention given to long-term follow-up of exposed children. Here, we provide a narrative review of recent advances in the assessment and management of neonatal opioid withdrawal syndrome (NOWS), and we summarise evidence from multiple domains-neuroimaging, electrophysiology, visual development and function, neurodevelopment, behaviour, cognition and education-which suggests that prenatal opioid exposure modifies child development. Further studies are required to determine the optimal management of pregnant women with OUD and babies with NOWS. We identify knowledge gaps and suggest that future study designs should evaluate childhood outcomes, including infant brain development and long-term neurocognitive and visual function.


Subject(s)
Developmental Disabilities/etiology , Neonatal Abstinence Syndrome/complications , Opioid-Related Disorders/complications , Opioid-Related Disorders/therapy , Pregnancy Complications/therapy , Brain/growth & development , Electrophysiology , Female , Heroin Dependence/complications , Heroin Dependence/therapy , Humans , Infant, Newborn , Learning Disabilities/etiology , Morphine Dependence/complications , Morphine Dependence/therapy , Neonatal Abstinence Syndrome/diagnosis , Neonatal Abstinence Syndrome/physiopathology , Neonatal Abstinence Syndrome/therapy , Neuroimaging , Pregnancy , Prognosis
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