Adolescent Development Research Articles

Adolescent resilience in the face of COVID-19 stressors: the role of trauma and protective factors.

The COVID-19 pandemic introduced unique stressors that posed significant threats to adolescent mental health. However, limited research has examined the impact of trauma exposure on vulnerability to subsequent stressor-related mental health outcomes in adolescents. Furthermore, it is unclear whether there are protective factors that promote resilience against the negative impacts of COVID-19 stressors in adolescents with prior trauma exposure. This preregistered study aimed to investigate the impact of trauma on COVID-19 stressor-related mental health difficulties in adolescents, in addition to the role of protective factors. Aims were investigated in a sample of 9696 adolescents (mean age 12.85 ± 0.88 years) from the Adolescent Brain Cognitive Development Study. Linear mixed-effects models were employed to examine (a) the associations of early trauma exposure (exposed v. non-exposed), COVID-19 stressors, and perceived stress, sadness, and positive affect levels during the pandemic period in the US, and (b) the role of protective factors (physical activity, parental support, and improvements in family and peer relationships) in these associations. There was a positive association between COVID-19 stressors and sadness, which was enhanced in trauma-exposed adolescents. Improvements in family and peer relationships mitigated the association between COVID-19 stressors and poor mental health outcomes, regardless of prior traumatic experience. These findings support the hypothesis that prior trauma elevates risk of mental health difficulties in the face of future stressors. Results underscore the protective role of enhanced social relationships as targets for early prevention and intervention in those experiencing acute stressors, regardless of prior traumatic experiences.

Amygdala Subregion Volumes and Apportionment in Preadolescents - Associations with Age, Sex, and Body Mass Index.

The amygdala, a key limbic structure, plays a critical role in emotional, social, and appetitive behaviors that develop throughout adolescence. Composed of a heterogeneous group of nuclei, questions remain about potential differences in the maturation of its subregions during development. To characterize the associations between developmental variables and amygdala subregion volumes during preadolescence. Cross-sectional Adolescent Brain Cognitive Development SM (ABCD®) Study data was collected from 3,953 9- and 10-year-old children between September 1, 2016, and October 15, 2018. Data analysis was conducted between June 1, 2023, and July 30, 2024. Using the CIT168 Amygdala Atlas , nine amygdala subregion volumes were quantified from high-quality MRI scans. Linear mixed-effects models were used to examine the effects of age, sex, pubertal stage, and body mass index z-score (BMIz) on subregion volumes and their relative apportionment within the amygdala. The study population consisted of 3,953 preadolescents (mean [SD] age, 120 [7.41] months; 1,763 [44.6%] female; 57 [1.4%] Asian, 527 [13.3%] Black, 740 [18.7%] Hispanic, 2,279 [57.7%] white, and 350 [8.9%] from other racial/ethnic groups [identified by parents as American Indian/Native American, Alaska Native, Native Hawaiian, Guamanian, Samoan, other Pacific Islander, or other race]). Distinct associations were observed between age, sex, and BMIz and whole amygdala volume, subregion volumes, and subregion apportionment. Pubertal stage was not related to amygdala subregion volumes. Age was associated with near-global expansion of amygdala subregions during this developmental period. Female sex was linked to smaller volumes in most amygdala subregions, with larger relative apportionment in dorsal amygdala subregions and smaller apportionment in the basolateral ventral paralaminar subregion. Higher BMIz was associated with smaller volumes in large laterobasal subregions, with increased relative apportionment in smaller subregions. This cross-sectional study suggests that age, but not pubertal stage, is associated with near-global expansion of the amygdala at ages 9 and 10, while sex and BMIz are linked to distinct changes in amygdala subregions that explain observed differences in total volumes. These findings provide a foundational context for understanding how developmental variables influence amygdala structure in preadolescents, with implications for understanding future risk for brain disorders.

Prospective associations between Sleep, Sensation-Seeking and Mature Screen Usage in Early Adolescents: Findings from the Adolescent Brain Cognitive Development (ABCD) Study.

Early exposure to mature content is linked to high-risk behaviors. This study aims to prospectively investigate how sleep and sensation-seeking behaviors influence the consumption of mature video games and R-rated movies in early adolescents. A secondary analysis examines the bidirectional relationships between sleep patterns and mature screen usage. Data were obtained from a subsample of 3,687 early adolescents (49.2% female; mean age: 11.96 years) participating in the Adolescent Brain and Cognitive Development study. At Year 2 follow-up, participants wore Fitbit wearables for up to 21 nights to assess objective sleep measures and completed a scale about sensation-seeking traits. At Year 3 follow-up, they answered questions about mature screen usage. Of the sample, 41.8% of the sample reported playing mature-rated video games and 49% reported watching R-rated movies. Sensation-seeking traits were associated with R-rated movie watching one year later. Shorter sleep duration, later bedtime, more bedtime variability, and more social jetlag (discrepancy between the mid-sleep on weekdays and weekends) were associated with mature-rated video gaming and R-rated movie watching one year later. Sleep duration variability was associated with mature-rated video gaming. There was also an interaction effect: those with higher sensation-seeking scores and shorter sleep duration reported more frequent R-rated movie usage than those with longer sleep duration. Secondary analyses showed bidirectional associations between later bedtimes, more variability in bedtimes, and more social jetlag with mature screen usage. Early adolescents with sensation-seeking traits and poorer sleep health were more likely to engage in mature screen usage.

Promoting Lifelong Physical Education Consciousness and Commitment in Sports Among Adolescents in a Selected YouthOrganization Beijing, China

Promoting lifelong physical education consciousness and commitment in sports among adolescents is imperative in cultivating healthy lifestyles and overall well-being. Adolescence is a critical period where habits and attitudes towards physical activity are formed, making it an opportune time to instill a lasting appreciation for sports and fitness. In the context of a selected youth organization in China, understanding the multifaceted nature of sports commitment becomes essential for designing effective interventions and programs tailored to the unique needs and preferences of adolescents. Research in the field of sports commitment offers valuable insights into the factors that influence individuals' sustained engagement in athletic activities. Studies conducted by van der Roest et al. (2017), Yıldırım (2020), and Merdan et al. (2021) have delved into various dimensions of sports commitment, ranging from organizational dynamics within sports clubs to individual psychosocial determinants such as motivation and coaching environment. By examining these factors within the specific context of a youth organization in China, we can gain a deeper understanding of the drivers and barriers to adolescents' participation in sports. This study seeks to contribute to the promotion of lifelong physical education consciousness and commitment among adolescents by elucidating the factors that shape their attitudes and behaviors towards physical activity. By identifying the key determinants of sports commitment within the context of the selected youth organization, interventions can be developed to foster a culture of active participation in sports and fitness activities. Such initiatives not only promote physical health but also contribute to the holistic development of adolescents, instilling values of teamwork, discipline, and resilience. Through collaborative efforts between educators, youth leaders, and community stakeholders, we can create supportive environments that encourage adolescents to embrace physical activity as an integral part of their lives. By promoting a positive and inclusive sports culture within the youth organization, we aim to empower adolescents to lead active and healthy lifestyles well into adulthood. Ultimately, our goal is to enhance the overall well-being and quality of life of adolescents in China by fostering a lifelong commitment to physical education and sports.

Is prior bullying victimization associated with subsequent bullying perpetration? A theoretical framework based on the Threat-Motivation model.

Bullying among adolescents is a global public health issue prevalent in schools, posing significant risks to positive adolescent development. Studies have shown that bullied adolescents tend to engage in more bullying perpetration, but this underlying process of longitudinal correlation has not been fully elucidated. Based on two waves of longitudinal data collected from 347 junior and 144 senior high school students in China (Mage = 13.66 years, SDage = 1.46, 59.27% boys) at 1-year intervals, two moderated chain-mediation models were used to explore the longitudinal correlations between bullying victimization and bullying perpetration and its underlying processes. The results found a significant positive correlation between adolescents' bullying victimization experiences 1 year prior and bullying perpetration 1 year later. Furthermore, fear of negative evaluation and psychache played a longitudinal chain-mediating role in the process, with self-esteem and grade moderating this mediating pathway, either enhancing or weakening the effect. This study demonstrates that prior bullying victimization is longitudinally and positively associated with subsequent bullying perpetration among adolescents. This process is mediated by fear of negative evaluation and psychache, with self-esteem and grade level as moderators. Based on these conclusions, we have formulated the Threat-Motivation Model, offering a framework to understand the relationship between bullying victimization and bullying perpetration. Practical implications, including strategies to reduce bullying in youth groups, are discussed.

Distinct functional connectivity phenotypes in preadolescent children with binge eating disorder by BMI status.

The neurobiological mechanisms underpinning binge eating disorder (BED) in children remain largely unclear, as the alterations that have been identified to date may be attributable to BED, obesity, or compound effects. This study aimed to delineate functional connectivity (FC) patterns in inhibitory control and reward networks in preadolescent children with and without BED from the Adolescent Brain Cognitive Development (ABCD) Study according to BMI. Resting-state FC was examined in the inhibitory control network by using seeds in the dorsolateral prefrontal cortex, the anterior cingulate cortex, and the posterior cingulate cortex, whereas the reward network included seeds in the orbitofrontal cortex, nucleus accumbens, and amygdala. Seed-to-voxel analyses characterized FC differences between preadolescent children with BED with a high BMI and those with BED with a low BMI. We identified that BED was characterized by reduced connectivity between the reward network and regions in the default mode network, irrespective of weight status. Participants with BED also presented with hypoconnectivity in fronto-amygdalar circuits, which has been consistently associated with impaired emotion regulation capacity. Our findings support that FC alterations between the reward network and the default mode network may be specifically impacted by the presence of BED as opposed to weight status.

Longitudinal panel networks of risk and protective factors for early adolescent suicidality in the ABCD sample.

Rates of youth suicidal thoughts and behaviors (STBs) are rising, and younger age at onset increases vulnerability to negative outcomes. However, few studies have investigated STBs in early adolescence (ages 10-13), and accurate prediction of youth STBs remains poor. Network analyses that can examine pairwise associations between many theoretically relevant variables may identify complex pathways of risk for early adolescent STBs. The present study applied longitudinal network analysis to examine interrelations between STBs and several previously identified risk and protective factors. Data came from 9,854 youth in the Adolescent Brain Cognitive Development Study cohort (Mage = 9.90 ± .62 years, 63% white, 53% female at baseline). Youth and their caregivers completed an annual measurement battery between ages 9-10 through 11-12 years. Panel Graphical Vector Autoregressive models evaluated associations between STBs and several mental health symptoms, socioenvironmental factors, life stressors, and substance use. In the contemporaneous and between-subjects networks, direct associations were observed between STBs and internalizing symptoms, substance use, family conflict, lower parental monitoring, and lower school protective factors. Potential indirect pathways of risk for STBs were also observed. Age-specific interventions may benefit from prioritizing internalizing symptoms and early substance use, as well as promoting positive school and family support.

Impact of mentalization, identity diffusion and psychopathology on nonsuicidal self-injury among adolescents.

Nonsuicidal self-injury (NSSI) has become a major public health issue in adolescents. This cross-sectional case-controlled study aims to assess the impact of identity diffusion, psychopathology, and mentalization on NSSI in adolescence. The study sample consisted of 153 adolescents (76.5% girls; Mage = 15.6 years). The sample included 56 clinical cases of NSSI, 45 psychiatric cases without NSSI, and 52 healthy controls, all recruited in Ankara, Türkiye, from June 1, 2022, to August 31, 2022. Mentalization was assessed by "The Movie for the Assessment of Social Cognition" (MASC) which categorizes mentalizing as "correct mentalizing" "hypermentalizing" "undermentalizing" and "no-mentalizing". All participants filled in the Self-Injurious Behavior Screening Questionnaire, Assessment of Identity Development in Adolescence (AIDA), and Youth Self Report (YSR), and Inventory of Statements About Self-injury (ISAS). The NSSI group showed lower mentalizing capacity than the healthy control group (p = .011), and more no-mentalizing errors than the other two groups (p = .014). Identity diffusion scores were higher in the NSSI group than in the other two groups (p < .001). Multivariate logistic regression analysis showed that the presence of maternal psychiatric disorder (p = .019, OR = 5.21), identity diffusion (p = .007, OR = 1.02), no mentalizing (p = .049, OR = 1.28), and total psychopathology symptoms (p = .009, OR = 1.12) had a significant impact on NSSI. Current findings suggest that transdiagnostic approaches, including mentalization and identity diffusion, may contribute to a more comprehensive understanding of NSSI and to the development of clinical interventions.

Disordered Eating in Early Adolescence: Disparities Among Minoritised Youth.

Disordered eating in early adolescence impacts development, with long-term health implications. Minoritised adolescents might be at higher risk of disordered eating due to minority stress, but most research has focused on White, heterosexual, cisgender individuals; less is known about disordered eating among minoritised adolescents. We examined sexual, gender, racial, and ethnic identities in relation to disordered eating in early adolescence. Using 2-year follow-up data from adolescents ages 10-14 in the Adolescent Brain Cognitive Development Study (N = 9385), we examined associations between sexual, gender, racial, and ethnic identities and past-2 week disordered eating (preoccupation with weight, weight control behaviors, and binge eating). Compared to heterosexual peers, gay/bisexual adolescents had higher odds of all three outcomes (AOR 1.90-3.32); those "questioning" their sexual identity had higher odds of preoccupation with weight (AOR 1.82) and binge eating (AOR 2.53). Compared to cisgender adolescents, transgender adolescents had higher odds of binge eating (AOR 2.62); those "questioning" their gender identity had higher odds of preoccupation with weight (AOR 2.45). Adolescents whose racial identity was categorised as "Another" had higher odds of preoccupation with weight (AOR 1.46) and weight control behaviors (AOR 1.58) compared to White adolescents. Finally, Hispanic adolescents had higher odds of all disordered eating outcomes than non-Hispanic adolescents (AOR 1.25-1.59). This study is among the first to reveal disparities in disordered eating among minoritised early adolescents. Further examination of these disparities can inform future interventions. Healthcare providers are encouraged to screen for disordered eating, recognising that minoritised early adolescents may be at risk.

Risk and resilience profiles and their transition pathways in the ABCD Study.

The transition from childhood to adolescence presents elevated risks for the onset of psychopathology in youth. Given the multilayered nature of development, the present study leverages the longitudinal, population-based Adolescent Brain Cognitive Development Study to derive ecologically informed risk/resilience profiles based on multilevel influences (e.g., neighborhood and family socioeconomic resources, parenting, school characteristics) and their transition pathways and examine their associations with psychopathology. Latent profile analysis characterized risk/resilience profiles at each time point (i.e., baseline, Year-1, Year-2); latent transition analysis estimated the most likely transition pathway for each individual. Analysis of covariance was used to examine associations between profile membership at baseline (i.e., ages 9-11) and psychopathology, both concurrently and at Year-2 follow-up. Further, we examined the associations between profile transition pathways and Year-2 psychopathology. Four distinct profiles emerged across time - High-SES High-Protective, High-SES Low-Protective, Low-SES High-Family-Risk, and Low-SES High-Protective. Despite reasonably high stability, significant transition over time among profiles was detected. Profile membership at baseline significantly correlated with concurrent psychopathology and predicted psychopathology 2 years later. Additionally, profile transition pathways significantly predicted Year-2 psychopathology, exemplifying equifinality and multifinality. Characterizing and tracing shifts in ecologically informed risk/resilience influences, our findings have the potential to inform more precise intervention efforts in youth.

Investigating cross-sectional and longitudinal relationships between brain structure and distinct dimensions of externalizing psychopathology in the ABCD sample.

Externalizing psychopathology in childhood is a predictor of poor outcomes across the lifespan. Children exhibiting elevated externalizing symptoms also commonly show emotion dysregulation and callous-unemotional (CU) traits. Examining cross-sectional and longitudinal neural correlates across dimensions linked to externalizing psychopathology during childhood may clarify shared or distinct neurobiological vulnerability for psychopathological impairment later in life. We used tabulated brain structure and behavioural data from baseline, year 1, and year 2 timepoints of the Adolescent Brain Cognitive Development Study (ABCD; baseline n = 10,534). We fit separate linear mixed effect models to examine whether baseline brain structures in frontolimbic and striatal regions (cortical thickness or subcortical volume) were associated with externalizing symptoms, emotion dysregulation, and/or CU traits at baseline and over a two-year period. The most robust relationships found at the cross-sectional level was between cortical thickness in the right rostral middle frontal gyrus and bilateral pars orbitalis was positively associated with CU traits (β = |0.027-0.033|, pcorrected = 0.009-0.03). Over the two-year follow-up period, higher baseline cortical thickness in the left pars triangularis and rostral middle frontal gyrus predicted greater decreases in externalizing symptoms ((F = 6.33-6.94, pcorrected = 0.014). The results of the current study suggest that unique regions within frontolimbic and striatal networks may be more strongly associated with different dimensions of externalizing psychopathology. The longitudinal findings indicate that brain structure in early childhood may provide insight into structural features that influence behaviour over time.

Cultivating the capacity for active balancing during adolescence: pathways to a coherent self

IntroductionIn this paper we propose that one of the core developmental aims of adolescence is to cultivate a capacity for active balancing as the primary process for creating a coherent, agentic self capable of contributing to the functioning and purposes of the communities which adolescents inhabit, including society as a broader community. While there many valuable initiatives and programs to promote positive development, learning, and wellbeing, these efforts typically take a siloed approach focusing on one dimension of development (e.g., social-emotional learning), leaving adolescents to create coherence from these disconnected approaches. As adolescence face an increasingly uncertain future (e.g., career instability), serious threats to human survival (e.g., environmental degradation), social divides (e.g., political and ideological polarization), etc., a siloed approach to adolescent development is not simply outmoded but it reinforces a fragmented self.Conceptual model and backgroundIn this paper we argue that a siloed approach to adolescent development and learning may contribute to a fragmented sense of self and agency, which can be associated with increased vulnerability to mental health challenges. We first link the proposed developmental aim of adolescence to neuroscience findings that identify three brain changes during adolescence that lay the groundwork for cultivating active balancing and provide an ontogenetic neurological push for adolescents to learn and manage how to engage their worlds. Leveraging this ontogenetic push, we propose adolescents can cultivate their capacity for active balancing within the cultural communities of practice they inhabit. These communities provide a ready and powerful fusion of action, affect, and thought into coherent and relevant understandings of the why, how, and utility of practices in a community, or what we label orientations. Active balancing is the process of actively seeking to establish or reestablish one's intended balance among these orientations.Conclusions and implicationsBuilding the capacity for active balancing, we suggest, engenders greater resilience and adaptability to a range of situations, a tolerance for and ability to resolve tensions, and an ability to transcend vast differences, including cultural and ideological. Implications for both the adolescent and society are discussed.

What Keeps Night Owls Well During the Week? Sleep Onset Consistency as a Moderator Between Morningness–Eveningness and Adolescent Development

ABSTRACT Objectives A preference for eveningness – one’s perception of being most alert later in the day – is associated with negative developmental outcomes in adolescence. Sleep onset consistency is protective against such outcomes. Toward a more nuanced understanding of relations between sleep-wake processes and adolescent development, we examined weeknight sleep onset consistency as a moderator of relations between eveningness and multiple indicators of development. Method A sample of 272 high-school students (M age = 17 years, SD = 9.12 months; n = 133 identified as female; 41% non-Hispanic Black/African-American, 59% non-Hispanic White/European-American) participated in a week of at-home sleep actigraphy assessment in 2017–2018. Adolescents reported their morningness – eveningness, internalizing symptoms (depression, anxiety), positive affect (optimism and subjective happiness), and physical health, and mothers reported on youths’ behavior problems. Relations were examined between morningness – eveningness and each indicator of development; sleep onset consistency was examined as a moderator of these associations. Results On average, adolescents with a preference for eveningness had higher levels of externalizing behaviors and internalizing symptoms and lower levels of positive affect and physical health compared to peers with a preference for morningness (Bs = –0.27*–0.12***). Each association was moderated by weeknight sleep onset consistency. Across all indicators of development, evening-preferring youth with more consistent weeknight sleep onset had 0.49–0.72 SD better outcomes on average than evening-preferring youth with less consistent weeknight sleep onset. Conclusions Falling asleep at roughly the same time each night can protect adolescent night owls from behavior problems and internalizing symptoms and can promote their positive affect and physical health.

Screen time and mental health: a prospective analysis of the Adolescent Brain Cognitive Development (ABCD) Study

BackgroundDespite the ubiquity of adolescent screen use, there are limited longitudinal studies that examine the prospective relationships between screen time and child behavioral problems in a large, diverse nationwide sample of adolescents in the United States, which was the objective of the current study.MethodsWe analyzed cohort data of 9,538 adolescents (9–10 years at baseline in 2016–2018) with two years of follow-up from the Adolescent Brain Cognitive Development (ABCD) Study. We used mixed-effects models to analyze associations between baseline self-reported screen time and parent-reported mental health symptoms using the Child Behavior Checklist, with random effects adjusted for age, sex, race/ethnicity, household income, parent education, and study site. We tested for effect modification by sex and race/ethnicity.ResultsThe sample was 48.8% female and racially/ethnically diverse (47.6% racial/ethnic minority). Higher total screen time was associated with all mental health symptoms in adjusted models, and the association was strongest for depressive (B = 0.10, 95% CI 0.06, 0.13, p < 0.001), conduct (B = 0.07, 95% CI 0.03, 0.10, p < 0.001), somatic (B = 0.06, 95% CI 0.01, 0.11, p = 0.026), and attention-deficit/hyperactivity symptoms (B = 0.06, 95% CI 0.01, 0.10, p = 0.013). The specific screen types with the greatest associations with depressive symptoms included video chat, texting, videos, and video games. The association between screen time and depressive, attention-deficit/hyperactivity, and oppositional defiant symptoms was stronger among White compared to Black adolescents. The association between screen time and depressive symptoms was stronger among White compared to Asian adolescents.ConclusionsScreen time is prospectively associated with a range of mental health symptoms, especially depressive symptoms, though effect sizes are small. Video chat, texting, videos, and video games were the screen types with the greatest associations with depressive symptoms. Future research should examine potential mechanisms linking screen use with child behavior problems.

“To Show That There Is Hope”: A Mixed Methods Exploration of Parent Perspectives About an Online, Co-Facilitated Parenting Program for Carers of Adolescents with Disability

Adolescence is a developmental period of significant change and increasing independence, during which parents and caregivers play a critical role guiding their teen toward adulthood. Parents of adolescents with disability face heightened challenges managing their teens’ growing independence and shift to adult-based services across health, recreation, and employment. Using a mixed-methods-treatment-group-only design, this study explored the implementation and outcomes of a program designed to build parenting capacity to support their adolescent with disability. Parents enrolled in one of ten groups were invited to attend three sessions covering content tailored to adolescent development including post-school opportunities, financial support, risk-taking and decision-making, future planning, relationships, and mental health. Surveys were administered pre-program, post-program, and six months after program participation (n = 160) to measure intervention outcomes including parenting self-efficacy, self-advocacy, adolescent self-advocacy, parent confidence to support their adolescent’s growing independence, confidence to support their adolescent through sensitive developmental stages, parental hopes and aspirations, and parental empowerment. A subset of parents (n = 11) also participated in semi-structured interviews about the program’s acceptability and usefulness, and their satisfaction with the program content and delivery. All outcome variables except parent hopes and aspirations increased significantly from pre- to post-program. Parent self-efficacy, self-advocacy, and parental empowerment remained higher 6 months after program completion. Thematic analysis identified program strengths as the co-facilitation model of program delivery, practical and actionable content, the use of narratives and the facilitator’s lived experience as parents of adolescents with disability, the use of visualizations (video, pictures, diagrams), and the service provider’s trusted reputation and credibility. In conclusion, an online co-facilitated group program for parents of adolescents with disability can contribute to positive change for families by improving parent confidence, self-advocacy, and parental empowerment.

Adolescent and Young Adult Development in Transplant Recipients.

Solid organ transplantation (SOT) is the gold standard of therapy for individuals with end-organ dysfunction. Improved survival outcomes after SOT can help adolescent and young adult (AYA) recipients lead long and healthy life. However, successful SOT during adolescence and young adulthood is often complicated by the innate developmental challenges of this age group. The psychosocial tasks of adolescence include identity development, autonomous decision-making, establishing social networks, educational and vocational preparation, and navigating romantic relationships. These goals may be amplified or delayed for pediatric SOT recipients. Adolescence is also marked by rapid physical changes in linear growth and the development of secondary sexual characteristics. Yet AYA may experience physical and pubertal delays related to transplantation, as well as exaggerated body image dissatisfaction due to medication side effects. Strict adherence to medication and post-transplant regimens may interfere with adolescents' desire for normalcy and fitting in with peers. Healthcare providers should be aware that AYA value education and self-empowerment in transplant care. Transplant success needs to be defined by both medical and psychosocial outcomes, particularly when it relates to the vulnerable AYA population. Fortunately, investment from the patient, family, and care team can aid in transplant recovery and success. This article will identify the developmental challenges faced by AYA undergoing solid organ transplantation as well as strategies to engage positive outcomes.

Prevention of Myopia Development in Children and Adolescents and Precautions

Myopia has increased epidemically in recent years and has become a global epidemic with significant public health implications. Identifying children at risk of developing myopia and implementing strategies to prevent or delay the onset of myopia can significantly reduce the burden of myopia on the individual and society. The strong causal role of education and time spent outdoors on myopia development suggests that lifestyle changes can be applied as preventive measures to children at risk, significantly impacting the myopia epidemic by preventing myopia onset and associated ocular pathologies.

6544 M6A methylation of PLCβ in the hypothalamus regulates GnRH synthesis and secretion by interfering Ca2+ signaling pathway

Abstract Disclosure: X. Yin: None. S. Zang: None. P. Li: None. Backgrounds: In recent years, the incidence of precocious puberty has increased rapidly, posing a serious threat to girls' physical and mental health. Epigenetic changes, especially m6A methylation modification, may be an important influencing factor. Researches had found that m6A modification plays an irreplaceable role in the development and functional homeostasis of the nervous system. A variety of factors could changed RNA m6A level in the hypothalamus and affect the process of adolescent sexual development. In the study,we aimed to explore the specific role of m6A methylation in precocious puberty, and to identify its downstream target genes by multi-omics approach and to verify its function. Hypothesis The demethylase FTO regulated the m6A modification of the target gene in the hypothalamus to affect the synthesis and secretion of GnRH and regulate the initiation of puberty. Methods: The modification abundance of m6A was investigated by the girls with central precious puberty (CPP). The changes of m6A modification in total RNA and the expression of important modulator genes were detected by colorimetry and qRT-PCR respectively in the hypothalamic ARC nucleus of female rats at three different developmental stages (juvenile, early puberty and puberty) and precocious rat model. MeRIP and mRNA sequencing was used to screen target genes which related to puberty development. Knockdown or overexpression of FTO were constructed using plasmid or lentivirus transfection. The target mRNA targeted regulated by FTO was verified with RNA-seq, qRT-PCR, WB and Flow cytometry. Results This study confirmed that the level of RNA m6A in the peripheral blood of the precocious group was significantly higher than that of the control group. The level of RNA m6A in the hypothalamus of female rats gradually increases with the development of puberty, and the expression of demethylase gradually decreases. MeRIP-seq combined with mrNA-seq screening analysis showed that the m6A modification of PLCβ in the ARC nucleus of the hypothalamus was reduced, and its mRNA expression was significantly increased in sexually precocious female rats. Combined with bioinformatics analysis, it was found that there were multiple m6A modified motif sites on the mRNA of PLCβ, and luciferase experiment confirmed that there was a regulatory relationship between them. After over-expressing FTO, the mRNA and protein expression of PLCβ were significantly increased, and the up-regulation of FTO expression induced a significant increase in intracellular Ca2+ concentration, the expression of CAM, and the activation of Ca2+ signaling pathway. Conclusions In the ARC nucleus of the hypothalamus, FTO affects the synthesis and secretion of GnRH by regulating the m6A modification level of PLCβ through the Ca2+ signaling pathway, and interferes with the initiation of female sexual development. Presentation: 6/1/2024

8256 Early Life Stress and Pubertal Predictors of Youth Substance Use Initiation: Does Sex Moderate the Relationship Between ELS, Puberty, and Substance Use Initiation?

Abstract Disclosure: A. Donovan: None. S. Assari: None. M. Shaheen: None. C. Grella: None. L. Richter: None. T.C. Friedman: None. Background: Early life stress (ELS) is a construct composed of children’s experiences of abuse, neglect, and conflict. Approximately 20% of adolescents in the United States have experienced ELS at some point, and these experiences influence adolescent and adult health behavior outcomes. Adults with a history of ELS display higher rates of substance use disorders (SUD) and report earlier initiation of substance use. Additionally, ELS has been associated with early puberty, which in turn is linked to earlier substance use initiation. Our study examines the roles of pubertal status, sex hormones (estradiol, testosterone, and DHEA) and ELS as predictors of the initiation of substance use among a nationally representative sample of male and female adolescents in NIDA’s Adolescent Brain Cognitive Development (ABCD) database. Methods: Baseline measures from the ABCD database release 5.0 were used to generate an ELS score (0-60), puberty assessed via parental report on the Pubertal Development Scale (PDS, 1-4), and sex hormones (estradiol, testosterone, and DHEA) were analyzed via salivary samples. The relationship between these scores and time to first use of alcohol, nicotine, and marijuana was determined via survival analysis utilizing a cox regression. Age was tested as a covariate in the interaction of ELS and time to first use of alcohol, nicotine, and marijuana. Data were analyzed overall and for biological boys and girls separately (N=11,866, 52%M 48%F. ages 9-11 at baseline). Results: We observed additive effects of PDS score, estradiol measure, age, and ELS on time to first use of any substance (alcohol, nicotine, or marijuana) and found age (Exp β= 1.029, p&amp;lt;0.001) and ELS (Exp β= 1.017, p&amp;lt;0.05) to be significant predictors of time to first use. After separating by sex, ELS was no longer a significant predictor for males (Exp β= 1.014, p=0.054), but remained a predictor for females (Exp β= 1.019, p&amp;lt;0.05) indicating the overall effect was driven by females. Additionally, salivary estradiol was a significant predictor of first use for females (Exp β= 1.208, p&amp;lt;0.05), while salivary DHEA and testosterone were not predictors for males or females. Conclusions: Our results indicate sex does moderate the relationship between ELS and substance use initiation within our population, with females showing increased risk of initiation with increases in estradiol. Further findings from our study will help to describe sex differences among the factors that increase the risk of substance use initiation among ELS-exposed youth and explore how these vary by substance. ABCD provides an unprecedented opportunity to explore the mechanisms behind complex effects of ELS by sex on risk factors for adolescent substance use initiation. Presentation: 6/1/2024

Emotion regulation motives in adolescence shape regulatory strategy use.

Emotion regulation (ER) motives (i.e., the reasons individuals regulate their emotions) are key factors influencing the development of adolescents' ER abilities. However, age- and gender-related trends in adolescents' ER motives, as well as their impact on the use of ER strategies, remain unclear. We recruited 5629 participants from two schools in Southwest China (M = 15.18, SD = 1.73; 45.11% male) to complete the Emotion Regulation Goals Scale and the Emotion Regulation Questionnaire. Linear and polynomial regression analyses were conducted to examine age- and gender-related differences in ER motive patterns. We then tested whether different patterns of ER motives were also associated with participants' habitual use of two common ER strategies. This study revealed nonlinear and diverse age-related differences in adolescents' contra-hedonic and pro-social motives, with notable fluctuations in contra-hedonic motives. Boys exhibited higher levels of contra-hedonic motives, while girls showed higher levels of performance motives. Moreover, ER motives were significantly and broadly associated with individuals' habitual use of reappraisal and suppression. More specifically, pro-hedonic motives were associated with greater use of reappraisal, while contra-hedonic motives were linked to higher levels of suppression. Furthermore, instrumental motives (i.e., performance, pro-social, and impression management) were positively related to both reappraisal and suppression. These findings enhance our understanding of how adolescents' ER motives vary by age and gender, as well as the crucial role different ER motives play in shaping patterns of ER strategy use.