This study aimed to understand long-term coping responses of mothers ( = 287) receiving genetic counseling and testing (GCT) for hereditary breast/ovarian cancer (HBOC) syndrome. Psychological characteristics, including cancer-specific distress (Impact of Events Scale-Revised, α = .85) and coping (Brief COPE, α = .
View Article and Find Full Text PDFThe objective of the present study was to evaluate the interdependency of parent-adolescent inflammation trends across time and to examine whether shared family socioeconomic characteristics explained between-family differences in parents' and adolescents' risk for inflammation. A total of N = 348 families, consisting of one parent and one adolescent child, were followed every two years in a three-wave longitudinal study. Sociodemographic questionnaires were used to determine parental educational attainment and family income-to-needs ratio (INR).
View Article and Find Full Text PDFEmotion reactivity refers to the intensity of changes in positive and negative emotion following a stimulus, typically studied with respect to daily stressors (e.g., arguments, demands) or laboratory stressors, including the Trier Social Stress Test (TSST).
View Article and Find Full Text PDFSocioeconomic disadvantage confers risk for many chronic illnesses, and theories have highlighted chronic psychological stress and alterations to inflammatory processes as key pathways. Specifically, disadvantage can heighten chronic stress, which may promote a proinflammatory phenotype characterized by immune cells mounting exaggerated cytokine responses to challenge and being less sensitive to inhibitory signals. Importantly, lifecourse perspectives emphasize that such immune alterations should be more potent earlier in life during a sensitive period when bodily tissues are highly plastic to environmental inputs.
View Article and Find Full Text PDFSocioeconomic status has been related to poorer eating behaviors, potentially due to feeling of lower status relative to peers. Despite experimental evidence that temporarily feeling of lower status can contribute to greater caloric intake, it remains unclear how feeling of lower social status relate to eating behavior in daily life. This study aimed to test whether lower subjective social status (SSS)-the feeling of having relatively lower social status-in American society and relative to college peers were related to daily food selection.
View Article and Find Full Text PDFBackground: Higher resting parasympathetic nervous system activity, as indexed by respiratory sinus arrhythmia (RSA), has been considered a marker of emotion regulatory capacity and is consistently related to better mental health. However, it remains unclear how resting RSA relates to emotion reactivity to acute social-evaluative stress, a potent predictor of depression and other negative outcomes.
Method: A sample of 89 participants (M = 18.
Objective: This study aimed to investigate the associations between indices of family socioeconomic status and sleep during adolescence and to examine whether measures of hypothalamic-pituitary-adrenal (HPA) axis functioning mediate the observed associations.
Methods: A total of 350 ethnically diverse adolescents (57% female; mean [standard deviation] age wave 1 = 16.4 [0.
Cerebral organoids can be used to gain insights into cell type specific processes perturbed by genetic variants associated with neuropsychiatric disorders. However, robust and scalable phenotyping of organoids remains challenging. Here, we perform RNA sequencing on 71 samples comprising 1,420 cerebral organoids from 25 donors, and describe a framework (Orgo-Seq) to integrate bulk RNA and single-cell RNA sequence data.
View Article and Find Full Text PDFPsychological stress during childhood and adolescence increases risk of health problems across the lifecourse, and inflammation is implicated as an underlying mechanism. To evaluate the viability of this hypothesis, we used meta-analysis to quantify the association between childhood/adolescent stress and inflammation over the lifecourse. Furthermore, we addressed three unresolved conceptual questions: (a) Does the strength of this association change over the lifecourse? (b) Are different types of childhood/adolescent stressors differentially associated with inflammation? (c) And which components of the inflammatory response are involved? A systematic search identified 187 articles reporting 922 associations.
View Article and Find Full Text PDFRecent studies have demonstrated that the signaling activity of the cytosolic pathogen sensor retinoic acid-inducible gene-I (RIG-I) is modulated by a variety of posttranslational modifications (PTMs) to fine-tune the antiviral type I interferon (IFN) response. Whereas K63-linked ubiquitination of the RIG-I caspase activation and recruitment domains (CARDs) catalyzed by TRIM25 or other E3 ligases activates RIG-I, phosphorylation of RIG-I at S8 and T170 represses RIG-I signal transduction by preventing the TRIM25-RIG-I interaction and subsequent RIG-I ubiquitination. While strategies to suppress RIG-I signaling by interfering with its K63-polyubiquitin-dependent activation have been identified for several viruses, evasion mechanisms that directly promote RIG-I phosphorylation to escape antiviral immunity are unknown.
View Article and Find Full Text PDFJC polyomavirus (JCV), a DNA virus that leads to persistent infection in humans, is the causative agent of progressive multifocal leukoencephalopathy, a lethal brain disease that affects immunocompromised individuals. Almost nothing is currently known about how JCV infection is controlled by the innate immune response and, further, whether JCV has evolved mechanisms to antagonize antiviral immunity. Here, we show that the innate immune sensors retinoic acid-inducible gene I (RIG-I) and cGMP-AMP synthase (cGAS) control JCV replication in human astrocytes.
View Article and Find Full Text PDFSleep disturbance may be a central, yet underappreciated mechanism by which early adversity has a long-term impact upon mental and physical health. The fundamental regulatory processes shaped by early adversity - neural, neuroendocrine, and immune - are also central to sleep. Sleep problems, in turn, lead to a similar constellation of chronic health problems that have been linked to early adversity.
View Article and Find Full Text PDFActivation of the RIG-I-like receptors, retinoic-acid inducible gene I (RIG-I) and melanoma differentiation-associated protein 5 (MDA5), establishes an antiviral state by upregulating interferon (IFN)-stimulated genes (ISGs). Among these is ISG15, the mechanistic roles of which in innate immunity still remain enigmatic. In the present study, we report that ISG15 conjugation is essential for antiviral IFN responses mediated by the viral RNA sensor MDA5.
View Article and Find Full Text PDFNucleic acids are used in many therapeutic modalities, including gene therapy, but their ability to trigger host immune responses in vivo can lead to decreased safety and efficacy. In the case of adeno-associated viral (AAV) vectors, studies have shown that the genome of the vector activates Toll-like receptor 9 (TLR9), a pattern recognition receptor that senses foreign DNA. Here, we engineered AAV vectors to be intrinsically less immunogenic by incorporating short DNA oligonucleotides that antagonize TLR9 activation directly into the vector genome.
View Article and Find Full Text PDFCardiovascular diseases are patterned by race and socioeconomic status, and chronic low-grade inflammation is proposed as a key underlying mechanism. Theories for how racial and socioeconomic disadvantages foster inflammation emphasize a lifecourse approach: social disadvantages enable chronic or repeated exposure to stressors, unhealthy behaviors, and environmental risks that accumulate across the lifecourse to increase low-grade inflammation. However, single samples rarely include multiple racial and socioeconomic groups that each span a wide age range, precluding examination of this proposition.
View Article and Find Full Text PDFActivation of the RIG-I-like receptors, RIG-I and MDA5, establishes an antiviral state by upregulating interferon (IFN)-stimulated genes (ISGs). Among these is ISG15 whose mechanistic roles in innate immunity still remain enigmatic. Here we report that ISGylation is essential for antiviral IFN responses mediated by the viral RNA sensor MDA5.
View Article and Find Full Text PDFPurpose: This study investigated the extent to which multiple sleep dimensions are associated with inflammation during adolescents' transition to young adulthood, a developmental period when sleep difficulties and systemic inflammation levels are on the rise. Additionally, the moderating roles of socioeconomic status (SES) and ethnicity were explored.
Methods: A total of 350 Asian American, Latino, and European American youth participated at two-year intervals in wave 1 (n = 316, M = 16.
Both lower subjective social status (SSS)-or viewing oneself as having lower status relative to others-and greater early life stress consistently relate to poorer health in adolescence. Early life stress can also negatively influence one's social relationships and may thereby shape social status. The present studies investigated how early life stress relates to the development of SSS and how SSS relates to health across the transition to college.
View Article and Find Full Text PDFObjective: Children reared by parents of low socioeconomic status (SES) go on to have elevated rates of physical health problems and premature mortality. However, many children reared in low-SES families remain healthy throughout the life-span. Here, secondary analyses of archival data tested the hypothesis that a positive relationship with parents during childhood acts as a buffer of the increased risk of adult susceptibility to infectious illness associated with low childhood SES.
View Article and Find Full Text PDFEcological momentary assessment (EMA) has served as a methodological tool across subdisciplines in psychology, shedding light on family, personality, and affective processes, and physical and mental health. In their review, Russell and Gajos demonstrate how EMA can overcome several limitations of traditional methods in developmental psychopathology to answer questions about mental and behavioral health in youth. They also provide thoughtful future directions on integrating sensor technology, advancing modeling techniques for temporally dense data, and employing EMA for delivering interventions.
View Article and Find Full Text PDFThe processing of emotional facial expressions is important for social functioning and is influenced by environmental factors, including early environmental experiences. Low socio-economic status (SES) is associated with greater exposure to uncontrollable stressors, including violence, as well as deprivation, defined as a lack or decreased complexity of expected environmental input. The current study examined amygdala and fusiform gyrus response to facial expressions in 207 early adolescents (mean age = 13.
View Article and Find Full Text PDFLow socioeconomic status (SES) is associated with a higher probability of multiple exposures (e.g., neighborhood violence, poor nutrition, housing instability, air pollution, and insensitive caregiving) known to affect structural development of subcortical brain regions that subserve threat and reward processing, however, few studies have examined the relationship between SES and such subcortical structures in adolescents.
View Article and Find Full Text PDFThe purpose of this study was to characterize the association between recent major life events and depressive symptoms during early adulthood, and to determine whether adolescents with chronically low positive affect or persistent sleep disturbance were more vulnerable to the link between stress and depressive symptoms. Adolescents (n = 147; 63.9% female; 33.
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