Contrasting topologies of synchronous and asynchronous functional brain networks.

We generated asynchronous functional networks (aFNs) using a novel method called optimal causation entropy and compared aFN topology with the correlation-based synchronous functional networks (sFNs), which are commonly used in network neuroscience studies. Functional magnetic resonance imaging (fMRI) time series from 212 participants of the National Consortium on Alcohol and Neurodevelopment in Adolescence study were used to generate aFNs and sFNs. As a demonstration of how aFNs and sFNs can be used in tandem, we used multivariate mixed effects models to determine whether age interacted with node efficiency to influence connection probabilities in the two networks.

LGBTQ+ youth policy and mental health: Indirect effects through school experiences.

The link between state policies and LGBTQ+ youth mental health is well-established, yet less well-understood are the mechanisms that drive these associations. We used a sample from the LGBTQ+ National Teen Survey (n = 8368) collected in 2022 to examine whether and to what degree LGBTQ+ inclusive school strategies, student perceptions of school safety, and experiences with bias-based bullying and peer victimization explain the association between state LGBTQ+ youth-focused policies and LGBTQ+ youth mental health symptomology. We observed significant indirect effects between policy and LGBTQ+ youth mental health through all four constructs, suggesting that each of these more proximal school experiences was independently implicated in this association.

Diffuse functional and structural abnormalities in fibrosis: Potential structural basis for sustaining atrial fibrillation.

Background: Structural remodeling has been associated with increased incidence of atrial fibrillation, but how fibrotic regions allow atrial fibrillation to be sustained remains unclear.

Objective: With a novel transgenic goat model, we evaluated structural and functional differences between structurally remodeled and healthy regions of the atria.

Methods: A novel transgenic goat model with cardiac-specific overexpression of transforming growth factor β1 was used.

Individuals with SATB2-associated syndrome have impaired vitamin and energy metabolism pathways.

Special AT-rich sequence-binding protein 2 (SATB2) is a master regulator of gene expression. Mutations of the SATB2 gene results in the SATB2-associated syndrome (SAS), a genetic disorder characterized by neurodevelopmental disabilities and autism-related phenotype. The importance of plasma as an indicator of SAS phenotypes is unknown.

Mental Health Risk and Protection Among First-Generation Latinx Immigrant Youth: A Latent Profile Analysis.

First-generation Latinx immigrant youth from the Northern Triangle (NT; El Salvador, Guatemala, and Honduras) face unique risks for experiencing stressors across the phases of migration, which could exacerbate their mental health. This study aimed to (a) identify and characterize unique latent profile groups based on response patterns to immigrant minority stress and psychosocial protective factor items and (b) examine the associations of latent profile membership with depression and anxiety symptoms among NT immigrant youth, controlling for study covariates (i.e.

Integrating systems of power and privilege in the study of resilience.

Although current approaches to the study of resilience acknowledge the role of context, rarely do those conceptualizations attend to societal systems and structures that include hierarchies of power and privilege-namely systems of racism, colonialism, patriarchy, and capitalism-nor do they articulate how these structural realities are embedded within individual experiences. We offer critiques of the current literature from this structural lens, using the concept of master narratives to articulate the incomplete and, at times, damaging story that the discipline of psychology has told about resilience. We then provide three models that center history, systems, and structures of society that can be employed in the study of resilience.

Overcoming human exceptionalism: The role of ethical nature-culture relations in the developmental contexts of indigenous children.

Indigenous populations, including American Indians, Alaska Natives, First Nations, and other first peoples worldwide, have been largely overlooked in child development research. This commentary examines how Indigenous relationality intersects with developmental science, advocating for a shift from human exceptionalism to an interconnected relationality among people, land, and more-than-human beings. Drawing from diverse Indigenous knowledge and practices, The Six Pillars to Advance Indigenous Relationality among Children provides frameworks for integrating Indigenous worldviews emphasizing interconnected responsibilities and sustainability.

A single institution's surgical care model for pediatric burns with ≤ 10% body surface area involvement.

Small burn injuries are extremely prevalent in the pediatric population and continue to pose a challenge for clinicians. Despite their high incidence, a standardized algorithm for treating small burns does not currently exist, and care is often influenced by clinical judgement and resource availability. The aim of this study was to explore the utility of a two-stage grafting technique, involving allograft and autograft, for treating small burns (≤ 10% total body surface area) in pediatric patients.

The Developmental Collision Hypothesis: An Empirical Test With Three Generations of Sexual Minority Youth.

Sexual minority youth experience disproportionate rates of mental health symptomatology relative to their heterosexual peers. Less is known about why these disparities have persisted despite growing public awareness of sexual diversity. The developmental collision hypothesis states that increased cultural visibility of sexual diversity has accelerated the developmental timing of sexual minority identity formation processes such that they collide with early adolescence, a uniquely sensitive period for experiencing identity-based stigma and associated mental health vulnerability.

Endothelial extracellular vesicles enhance vascular self-assembly in engineered human cardiac tissues.

The fabrication of complex and stable vasculature in engineered cardiac tissues represents a significant hurdle towards building physiologically relevant models of the heart. Here, we implemented a 3D model of cardiac vasculogenesis, incorporating endothelial cells (EC), stromal cells, and human induced pluripotent stem cell (iPSC)-derived cardiomyocytes (CM) in a fibrin hydrogel. The presence of CMs disrupted vessel formation in 3D tissues, resulting in the upregulation of endothelial activation markers and altered extracellular vesicle (EV) signaling in engineered tissues as determined by the proteomic analysis of culture supernatant.

Contrasting topologies of synchronous and asynchronous functional brain networks.

We generated asynchronous functional networks (aFNs) using a novel method called optimal causation entropy (oCSE) and compared aFN topology to the correlation-based synchronous functional networks (sFNs) which are commonly used in network neuroscience studies. Functional magnetic resonance imaging (fMRI) time series from 212 participants of the National Consortium on Alcohol and NeuroDevelopment in Adolescence (NCANDA) study were used to generate aFNs and sFNs. As a demonstration of how aFNs and sFNs can be used in tandem, we used multivariate mixed effects models to determine whether age interacted with node efficiency to influence connection probabilities in the two networks.

Splicing is dynamically regulated during limb development.

Modifications to highly conserved developmental gene regulatory networks are thought to underlie morphological diversification in evolution and contribute to human congenital malformations. Relationships between gene expression and morphology have been extensively investigated in the limb, where most of the evidence for alterations to gene regulation in development consists of pre-transcriptional mechanisms that affect expression levels, such as epigenetic alterations to regulatory sequences and changes to cis-regulatory elements. Here we report evidence that alternative splicing (AS), a post-transcriptional process that modifies and diversifies mRNA transcripts, is dynamic during limb development in two mammalian species.

Binge Drinking Disparities by Grade, Race and Ethnicity, Sexual Orientation, and Gender Identity.

Background And Objectives: Binge drinking disparities between sexual and gender minority (SGM) students and their heterosexual, cisgender peers are well-established. Data limitations have precluded understandings of whether the onset and progression of these disparities differ by grade. Additionally, little is known about whether and how SGM-related binge drinking varies across groups of students coincidingly defined by sexual orientation or gender identity (SOGI), race, and ethnicity.

Trends in mental health and smoking disparities between sexual minority and heterosexual adults in Canada, 2003-2020.

Sexual minority populations experience a higher burden of mental health and substance use/misuse conditions than heterosexual comparators-a health inequality that has predominantly been attributed to forms of minority stress experienced by the former group. Sexual minority-affirming legislative and policy advances, as well as improvements in social attitudes toward sexual minorities in recent decades, should presumably reduce experiences of minority stress, thereby attenuating these disparities. We conducted temporal trend analyses of annual prevalence of anxiety, depression, poor self-rated mental health, and cigarette smoking, stratified by sexual orientation and gender/sex subgroups using the Canadian Community Health Survey, 2003-2020.

Truth and reconciliation for whom? Transitional justice for Indigenous peoples in American psychology.

In October 2021, the American Psychological Association apologized to people of color in the United States for its role in systemic racism. Spurred by a national racial reckoning, Indigenous Peoples have been regularly incorporated into initiatives redressing America's legacy of racism. Although Indigenous Peoples have been racialized during the formation of the United States, this process is intertwined with colonization-the systematic dispossession and exploitation of Indigenous communities by Europeans.

Unveiling the stochastic nature of human heteropolymer ferritin self-assembly mechanism.

Despite ferritin's critical role in regulating cellular and systemic iron levels, our understanding of the structure and assembly mechanism of isoferritins, discovered over eight decades ago, remains limited. Unveiling how the composition and molecular architecture of hetero-oligomeric ferritins confer distinct functionality to isoferritins is essential to understanding how the structural intricacies of H and L subunits influence their interactions with cellular machinery. In this study, ferritin heteropolymers with specific H to L subunit ratios were synthesized using a uniquely engineered plasmid design, followed by high-resolution cryo-electron microscopy analysis and deep learning-based amino acid modeling.

Single-cell atlas of the human brain vasculature across development, adulthood and disease.

A broad range of brain pathologies critically relies on the vasculature, and cerebrovascular disease is a leading cause of death worldwide. However, the cellular and molecular architecture of the human brain vasculature remains incompletely understood. Here we performed single-cell RNA sequencing analysis of 606,380 freshly isolated endothelial cells, perivascular cells and other tissue-derived cells from 117 samples, from 68 human fetuses and adult patients to construct a molecular atlas of the developing fetal, adult control and diseased human brain vasculature.

Multiomics unveils extracellular vesicle-driven mechanisms of endothelial communication in human carotid atherosclerosis.

Carotid atherosclerosis is orchestrated by cell-cell communication that drives progression along a clinical continuum (asymptomatic to symptomatic). Extracellular vesicles (EVs) are cell-derived nanoparticles representing a new paradigm in cellular communication. Little is known about their biological cargo, cellular origin/destination, and functional roles in human atherosclerotic plaque.

The Association of Stigma, School, and Family Factors with Patterns of Substance Use Among LGBTQ Youth.

Polysubstance use is associated with myriad short- and long-term health outcomes. Although prior research has documented differences in polysubstance use between lesbian, gay, bisexual, transgender, queer/questioning, and other sexual and gender minoritized (LGBTQ +) youth and their heterosexual/cisgender counterparts, as well as between subgroups of LGBTQ + youth, it is unknown how personal, family, and school factors are associated with substance use patterns among LGBTQ + youth. Using a large, national sample of 9646 LGBTQ + youth ages 13-17, we used latent class analysis to examine patterns of alcohol, tobacco, and marijuana use and to determine whether personal, family, and school factors predict class membership.

Deliberate Practice as an Effective Method for Reducing Diagnostic Error in Identifying Burn and Bruise Injuries Suspicious for an Abusive Injury.

Objective: To examine the effectiveness of an education intervention for reducing physician diagnostic error in identifying pediatric burn and bruise injuries suspicious for abuse, and to determine case-specific variables associated with an increased risk of diagnostic error.

Study Design: This was a multicenter, prospective, cross-sectional study. A convenience sample of pediatricians and other front-line physicians who treat acutely injured children in the United States and Canada were eligible for participation.

An Almost Empty Scoping Review: State of the Research on Tobacco Prevention and Cessation Messaging Strategies for Black and/or Latine LGBTQ+ Youth and Young Adults.

Research has yet to offer strong recommendations for effective tobacco prevention and cessation messaging that can reduce tobacco-related health disparities among Black and/or Latine LGBTQ+ youth and young adults. As a result of predatory marketing strategies and community stressors, among other factors, LGBTQ+ youth and young adults use tobacco products at higher rates than their non-LGBTQ+ peers. These disparities are uniquely complex among Black and/or Latine youth and young adults within the LGBTQ+ community, but there has been little research addressing the communication strategies that can promote tobacco prevention and cessation for these groups.