Publications by authors named "Bellinger D"

: While it is generally assumed that common neurobehavioral assessments, such as the Wechsler Adult Intelligence Scale, Fourth Edition (WAIS-IV), function similarly in clinical and non-clinical populations, this has not been validated in adults with congenital heart disease (CHD). In this study, we examined the latent factor structure of the WAIS-IV in adults with d-transposition of the great arteries (d-TGA) who participated in the Boston Circulatory Arrest Study. : The WAIS-IV was administered as part of a larger assessment battery.

View Article and Find Full Text PDF

Importance: Data are limited on the longitudinal implications of socioeconomic status (SES) for neurodevelopmental outcomes among persons with complex congenital heart disease (CHD).

Objectives: To examine the association of family SES, maternal educational level, and maternal IQ with the neurodevelopment of individuals with dextro-transposition of the great arteries (d-TGA) from age 1 to 16 years and to identify how SES-related disparities change with age.

Design, Setting, And Participants: This cohort study analyzed data of participants enrolled in the Boston Circulatory Arrest Study, a randomized clinical trial conducted in Boston, Massachusetts, from 1988 to 1992.

View Article and Find Full Text PDF

Background: A growing body of epidemiologic and toxicologic literature indicates that fine airborne particulate matter (PM) pollution is neurotoxic and threatens children's neurobehavioral development, resulting in reduced cognitive function. Understanding the magnitude of this effect is critical for establishing public health policies that will protect children's health, preserve human capital, and support societal progress.

Objective: To quantify the association between ambient PM air pollution and loss of cognitive function in children, as measured by Intelligence Quotient (IQ) scores, through a systematic literature review and meta-analysis.

View Article and Find Full Text PDF

Background: Environmental chemical exposures in utero may play a role in autism development. While preconception risk factors for autism are increasingly being investigated, little is known about the influence of chemical exposures during the preconception period, particularly for paternal exposures.

Methods: In 195 children from the Preconception Environmental exposures And Childhood health Effects (PEACE) cohort born to parents recruited from a fertility clinic in Boston, Massachusetts between 2004 and 2017, we quantified concentrations of 11 phthalate metabolites and bisphenol A (BPA) in urine samples collected from mothers and fathers before conception and mothers throughout pregnancy.

View Article and Find Full Text PDF

Anxiety disorders are among the most common mental disorders. Treatment guidelines recommend pharmacotherapy and cognitive behavioral therapy as standard treatment. Although cognitive behavioral therapy is an effective therapeutic approach, not all patients benefit sufficiently from it.

View Article and Find Full Text PDF
Article Synopsis
  • The study aims to improve the measurement of childhood inhibitory control by using an item response theory (IRT) approach that integrates multiple neurodevelopmental tasks instead of analyzing them separately.
  • Data was collected from a cohort in Mexico consisting of 533 participants, and an inhibitory control scale was developed using various tasks to assess the impact of pre/post-natal lead exposure on children's development.
  • Findings indicated that increased lead exposure, both from umbilical cord blood and at the age of four, was associated with lower inhibitory control scores in children aged 8-10, confirming the relevance of IRT in environmental epidemiology research.
View Article and Find Full Text PDF

Congenital heart disease affects 1% of infants and is associated with impaired neurodevelopment. Right- or left-sided sulcal features correlate with executive function among people with Tetralogy of Fallot or single ventricle congenital heart disease. Studies of multiple congenital heart disease types are needed to understand regional differences.

View Article and Find Full Text PDF

Research on the neurodevelopmental effects of metal(loid)s has focused mainly on outcomes assessed at one time point, even though brain development progresses over time. We investigated biomarkers of perinatal exposure to metals and changes in child behavior over time. We followed 268 participants from the prospective New Hampshire Birth Cohort Study between birth and age 5 years.

View Article and Find Full Text PDF

Introduction: High-level prenatal and childhood arsenic (As) exposure characteristic of several regions in Asia (e.g., Bangladesh), may impact motor function.

View Article and Find Full Text PDF

Introduction: Neurotoxicity resulting from air pollution is of increasing concern. Considering exposure timing effects on neurodevelopmental impairments may be as important as the exposure dose. We used distributed lag regression to determine the sensitive windows of prenatal exposure to fine particulate matter (PM) on children's cognition in a birth cohort in Mexico.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates how exposure to multiple metals in early childhood affects cognitive development by examining blood metal concentrations in children around 3 years old and their cognitive test scores at about 8 years old.
  • Researchers measured levels of various essential and non-essential metals in blood samples and used statistical methods to analyze how these levels correlate with cognitive abilities like vocabulary and memory.
  • Findings reveal that higher lead levels were linked to decreased visual-motor skills and vocabulary, while magnesium showed some positive associations, but overall, joint effects of metal mixtures were not observed in this low lead exposure group.
View Article and Find Full Text PDF

Background: Epidemiologic studies of the effects of parental preconception paraben exposures on child behavior are limited despite emerging evidence suggesting that such exposures may affect offspring neurodevelopment.

Objective: We investigated whether maternal and paternal preconception and maternal pregnancy urinary concentrations of parabens were associated with child behavior.

Methods: We analyzed data from the Preconception Environmental exposure And Childhood health Effects Study, an ongoing prospective cohort of children aged 6-13 years and their parents.

View Article and Find Full Text PDF
Article Synopsis
  • Obesity is linked to higher levels of C-reactive protein (CRP) in gingival crevicular fluid (GCF) compared to lean individuals, suggesting a connection between obesity and chronic inflammation in oral health.
  • In a study of 39 participants with good periodontal health, GCF CRP levels were found to be significantly elevated in obese individuals, but most inflammatory cytokines showed no statistically significant differences between lean and obese groups.
  • Despite higher GCF CRP in obese individuals, the connections between CRP levels and certain inflammatory cytokines appeared weaker, indicating that obesity may diminish the inflammatory response in periodontal health.
View Article and Find Full Text PDF

Background: Epidemiologic studies on health effects of parental preconception exposures are limited despite emerging evidence from toxicological studies suggesting that such exposures, including to environmental chemicals, may affect offspring health.

Objective: We investigated whether maternal and paternal preconception and maternal pregnancy urinary phthalate metabolite and bisphenol A (BPA) concentrations were associated with child behavior.

Methods: We analyzed data from the Preconception Environmental exposure And Childhood health Effects (PEACE) Study, an ongoing prospective cohort study of children aged 6-11 years whose parent(s) previously enrolled in the prospective preconception Environment and Reproductive Health (EARTH) study.

View Article and Find Full Text PDF

Dramatic advances in the management of congenital heart disease (CHD) have improved survival to adulthood from less than 10% in the 1960s to over 90% in the current era, such that adult CHD (ACHD) patients now outnumber their pediatric counterparts. ACHD patients demonstrate domain-specific neurocognitive deficits associated with reduced quality of life that include deficits in educational attainment and social interaction. Our hypothesis is that ACHD patients exhibit vascular brain injury and structural/physiological brain alterations that are predictive of specific neurocognitive deficits modified by behavioral and environmental enrichment proxies of cognitive reserve (e.

View Article and Find Full Text PDF

Background: The developing fetal brain is sensitive to many environmental exposures. However, the independent and joint effects of prenatal exposure to metals and micronutrients on child cognition are not well understood.

Objectives: Our aim was to evaluate associations of first-trimester ( wk) maternal erythrocyte concentrations of mixtures of nonessential and essential metals and micronutrients with early ( y) and mid-childhood ( y) cognitive test scores in Project Viva, a prebirth cohort in Boston, Massachusetts, USA.

View Article and Find Full Text PDF

Background: Performance anxiety is the most frequently reported anxiety disorder among professional musicians. Typical symptoms are - on a physical level - the consequences of an increase in sympathetic tone with cardiac stress, such as acceleration of heartbeat, increase in blood pressure, increased respiratory rate and tremor up to nausea or flush reactions. These symptoms can cause emotional distress, a reduced musical and artistical performance up to an impaired functioning.

View Article and Find Full Text PDF

Background: Studies of prenatal air pollution (AP) exposure on child neurodevelopment have mostly focused on a single pollutant. We leveraged daily exposure data and implemented novel data-driven statistical approaches to assess effects of prenatal exposure to a mixture of seven air pollutants on cognitive functioning in school-age children from an urban pregnancy cohort.

Methods: Analyses included 236 children born at ≥37 weeks gestation.

View Article and Find Full Text PDF
Article Synopsis
  • * The SVRIII Brain Connectome study aims to analyze neuroimaging from patients and healthy controls but has faced recruitment and logistical challenges, especially during the COVID-19 pandemic.
  • * Solutions included adding more study sites, improving coordination among researchers, and implementing new strategies for recruiting healthy controls while also overcoming technical issues with neuroimage collection.
View Article and Find Full Text PDF

Unlabelled: Patients with hypoplastic left heart syndrome who have been palliated with the Fontan procedure are at risk for adverse neurodevelopmental outcomes, lower quality of life, and reduced employability. We describe the methods (including quality assurance and quality control protocols) and challenges of a multi-center observational ancillary study, SVRIII (Single Ventricle Reconstruction Trial) Brain Connectome. Our original goal was to obtain advanced neuroimaging (Diffusion Tensor Imaging and Resting-BOLD) in 140 SVR III participants and 100 healthy controls for brain connectome analyses.

View Article and Find Full Text PDF

Background: Air pollution exposure during pregnancy affects children's brain function. Maternal stress and nutrition, socioeconomic status, and the child's sex may modify this relationship.

Objective: To identify characteristics of children with the largest increases in full-scale IQ (FSIQ) after their mothers used HEPA filter air cleaners during pregnancy.

View Article and Find Full Text PDF

Autism spectrum disorders are more prevalent in children with congenital heart disease (CHD) than in the general population. Children with CHD without diagnosed autism are also at increased risk for neurodevelopmental and psychiatric impairments. We characterized social and behavioral outcomes in children with CHD and examined neurodevelopmental and psychiatric comorbidities.

View Article and Find Full Text PDF
Article Synopsis
  • Neurodevelopmental disabilities often occur in individuals with congenital heart disease (CHD), but only a small portion of this is explained by medical and social factors.
  • The study aimed to investigate the connection between damaging gene variants (dDNVs) that haven't been previously linked to these disabilities and neurological outcomes in CHD patients.
  • Conducted across eight US centers, the study analyzed 221 participants' neurodevelopmental assessments and various brain imaging metrics, finding that differences in the presence of dDNVs might relate to differing neurological outcomes.
View Article and Find Full Text PDF