Effect of Divalproex on Brain Morphometry, Chemistry, and Function in Youth at High-Risk for Bipolar Disorder: A Pilot Study

Abstract Objective: Divalproex has been found efficacious in treating adolescents with and at high risk for bipolar disorder (BD), but little is known about the effects of mood stabilizers on the brain itself. We sought to examine the effects of divalproex on the structure, chemistry, and function of specific brain regions in children at high-risk for BD. Methods: A total of 24 children with mood dysregulation but not full BD, all offspring of a parent with BD, were treated with divalproex monotherapy for 12 weeks. A subset of 11 subjects and 6 healthy controls were scanned with magnetic resonance imaging (MRI, magnetic resonance spectroscopy [MRS], and functional MRI [fMRI]) at baseline and after 12 weeks. Results: There were no significant changes in amygdalar or cortical volume found over 12 weeks. Furthermore, no changes in neurometabolite ratios were found. However, we found the degree of decrease in prefrontal brain activation to correlate with degree of decrease in depressive symptom severity. Conclusions: Bipolar offspring at high risk for BD did not show gross morphometric, neurometabolite, or functional changes after 12 weeks of treatment with divalproex. Potential reasons include small sample size, short exposure to medications, or lack of significant neurobiological impact of divalproex in this particular population

Influence of Socioeconomic Status Trajectories on Innate Immune Responsiveness in Children

Lower socioeconomic status (SES) is consistently associated with poor health, yet little is known about the biological mechanisms underlying this inequality. In children, we examined the impact of early-life SES trajectories on the intensity of global innate immune activation, recognizing that excessive activation can be a precursor to inflammation and chronic disease.Stimulated interleukin-6 production, a measure of immune responsiveness, was analyzed ex vivo for 267 Canadian schoolchildren from a 1995 birth cohort in Manitoba, Canada. Childhood SES trajectories were determined from parent-reported housing data using a longitudinal latent-class modeling technique. Multivariate regression was conducted with adjustment for potential confounders.SES was inversely associated with innate immune responsiveness (p=0.003), with persistently low-SES children exhibiting responses more than twice as intense as their high-SES counterparts. Despite initially lower SES, responses from children experiencing increasing SES trajectories throughout childhood were indistinguishable from high-SES children. Low-SES effects were strongest among overweight children (p<0.01). Independent of SES trajectories, immune responsiveness was increased in First Nations children (p<0.05) and urban children with atopic asthma (p<0.01).These results implicate differential immune activation in the association between SES and clinical outcomes, and broadly imply that SES interventions during childhood could limit or reverse the damaging biological effects of exposure to poverty during the preschool years

Qualitative Evaluations of mHealth Interventions: Current Gaps and Future Directions

Psycho-social factors are often addressed in behavioral health studies. While the purpose of many mHealth interventions is to facilitate behavior change, the focus is more prominently on the functionality and usability of the technology and less on the psycho-social factors that contribute to behavior change. Here we aim to identify the extent to which mHealth interventions for patient self- management address psychological factors. By understanding users’ motivations, facilitators, and mindsets, we can better tailor mHealth interventions to promote behavior change

Increased Subgenual Cingulate Cortex Volume in Pediatric Bipolar Disorder Associated with Mood Stabilizer Exposure

Objective: The subgenual cingulate (SGC) cortex has been implicated in the pathophysiology of mood disorders. We sought to study morphometric characteristics of the SGC in pediatric subjects with familial bipolar disorder (BD) compared with healthy controls. Method: Twenty children and adolescents with BD (mean age 14.6 years, 4 females) and 20 healthy age-, gender-, and intelligence quotient-matched controls underwent high-resolution anatomical magnetic resonance imaging. Patients were primarily euthymic andmostwere takingmedications. SGCcortex volumeswere determined bymanual tracings froma reliable rater, blinded to diagnosis. Analyses of covariance were performed with total cerebral gray matter and age as covariates. Results:Nodifferenceswere found in SGCvolumes betweenBD subjects and healthy controls. Further analysis revealed that BD subjects with pastmood stabilizer exposure had significantly increased SGCvolumes comparedwith BD subjects without mood stabilizer exposure, and compared with controls. The increase was driven by larger bilateral posterior SGC volumes. Conclusions: Youth with familial BD do not appear to have abnormalities in SGC volume. Mood stabilizer exposure, however, may be correlated with increases in SGC volume

Caregiver perceptions of importance of COVID-19 preventative health guidelines and difficulty following guidelines are associated with child adherence rates

Objective: To describe child adherence to four preventative-health guidelines during the COVID-19 pandemic and investigate caregiver-level correlates of adherence. Method: Two hundred thirty-six caregivers (75% female) of children ages 6–12 years (Mage = 8 years; 53% male) living in the United States rated child adherence to four preventative-health guidelines between 10/16/2020 and 11/14/2020. Caregivers also rated perceived importance of each guideline in limiting virus spread and perceived difficulty in obtaining child compliance. Results: Child adherence was highest for mask-wearing (median [Mdn] = 96%) and hand hygiene (Mdn = 95%). Adherence to social distancing guidelines was lower. Mdn adherence for social distancing with family outside the household was 80%, and Mdn adherence for social distancing with friends was 72%. Furthermore, for each of the four guidelines, fewer than half the sample reported 100% adherence (range = 20%–43%). Adherence was positively associated with caregiver perceptions of importance of a given behavior in limiting virus spread (rs = .38–.62) and negatively associated with perceived difficulty in gaining child compliance (rs = –.37––.25). Discussion: Current results indicated parents perceive child adherence to social distancing more challenging than child adherence to mask wearing or hand hygiene. Lower caregiver perceptions of importance of the behavior and greater perceived difficulty in gaining child compliance were associated with lower adherence to all tasks. Brief targeted interventions (e.g., motivational interviewing, parent behavior management training) may be well suited to enhance caregivers’ perceptions of value of the behavior, while also addressing behavioral challenges that interfere with child adherence

Dietary Interventions for Adult Survivors of Adolescent and Young Adult Cancers: A Systematic Review and Narrative Synthesis

Adolescent and young adult (AYA) cancer survivors, here defined as individuals diagnosed with cancer between 15 and 39 years of age, are at high risk for adverse late-term metabolic effects of treatment through adulthood. Diet is a modifiable lifestyle behavior that may improve metabolic health outcomes in AYA cancer survivors. However, the details of dietary interventions for this unique population remain largely undescribed. In this systematic review, we aim to synthesize the results of dietary interventions for adult AYA cancer survivors. Seven databases and clinical trial registries were searched in March 2019 for interventions targeting dietary behaviors in AYA cancer survivors (PROPSERO systematic review number: CRD42019126376). Descriptive statistics and a narrative synthesis were completed to detail intervention participants and components. After full text review of 233 studies, four studies met all inclusion criteria. All studies were heterogeneous for participant age, cancer type, and duration, and were designed for feasibility and preliminary efficacy. Included studies followed different dietary guidance; however, each resulted in a significant change on a primary outcome of either dietary quality or body composition. Three of the four studies included a theoretical framework, where self-efficacy was a central construct. Counseling, in person, telephone, or electronic, provided behavioral support. Results of this systematic review suggest high potential to change dietary behaviors in AYA, but interventions remain limited. AYA cancer survivors demonstrate unique physiological and psychosocial needs, and future interventions designed to address this care gap should be targeted for this population with consideration of social support, delivery mode, and individual tailoring