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Auteur Man-Kit LEI
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Documents disponibles écrits par cet auteur (8)
Faire une suggestion Affiner la rechercheBiological embedding of neighborhood disadvantage and collective efficacy: Influences on chronic illness via accelerated cardiometabolic age / Man-Kit LEI in Development and Psychopathology, 30-5 (December 2018)
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[article]
Titre : Biological embedding of neighborhood disadvantage and collective efficacy: Influences on chronic illness via accelerated cardiometabolic age Type de document : texte imprimé Auteurs : Man-Kit LEI, Auteur ; Steven R.H. BEACH, Auteur ; Ronald L. SIMONS, Auteur Article en page(s) : p.1797-1815 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : The present study extends prior research on the link between neighborhood disadvantage and chronic illness by testing an integrated model in which neighborhood characteristics exert effects on health conditions through accelerated cardiometabolic aging. Hypotheses were tested using a sample of 408 African Americans from the Family and Community Health Study. Using four waves of data spanning young adulthood (ages 18–29), we first found durable effects of neighborhood disadvantage on accelerated cardiometabolic aging and chronic illness. Then, we used marginal structural modeling to adjust for potential neighborhood selection effects. As expected, accelerated cardiometabolic aging was the biopsychosocial mechanism that mediated much of the association between neighborhood disadvantage and chronic illness. This finding provides additional support for the view that neighborhood disadvantage can influence morbidity and mortality by creating social contexts that becomes biologically embedded. Perceived neighborhood collective efficacy served to buffer the relationship between neighborhood disadvantage and biological aging, identifying neighborhood-level resilience factor. Overall, our results indicate that neighborhood context serves as a fundamental cause of weathering and accelerated biological aging. Residing in a disadvantaged neighborhood increases biological wear and tear that ultimately leads to onset of chronic illness, but access to perceived collective efficacy buffers the impact of these neighborhood effects. From an intervention standpoint, identifying such an integrated model may help inform future health-promoting interventions. En ligne : http://dx.doi.org/10.1017/S0954579418000937 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=370
in Development and Psychopathology > 30-5 (December 2018) . - p.1797-1815[article] Biological embedding of neighborhood disadvantage and collective efficacy: Influences on chronic illness via accelerated cardiometabolic age [texte imprimé] / Man-Kit LEI, Auteur ; Steven R.H. BEACH, Auteur ; Ronald L. SIMONS, Auteur . - p.1797-1815.
Langues : Anglais (eng)
in Development and Psychopathology > 30-5 (December 2018) . - p.1797-1815
Index. décimale : PER Périodiques Résumé : The present study extends prior research on the link between neighborhood disadvantage and chronic illness by testing an integrated model in which neighborhood characteristics exert effects on health conditions through accelerated cardiometabolic aging. Hypotheses were tested using a sample of 408 African Americans from the Family and Community Health Study. Using four waves of data spanning young adulthood (ages 18–29), we first found durable effects of neighborhood disadvantage on accelerated cardiometabolic aging and chronic illness. Then, we used marginal structural modeling to adjust for potential neighborhood selection effects. As expected, accelerated cardiometabolic aging was the biopsychosocial mechanism that mediated much of the association between neighborhood disadvantage and chronic illness. This finding provides additional support for the view that neighborhood disadvantage can influence morbidity and mortality by creating social contexts that becomes biologically embedded. Perceived neighborhood collective efficacy served to buffer the relationship between neighborhood disadvantage and biological aging, identifying neighborhood-level resilience factor. Overall, our results indicate that neighborhood context serves as a fundamental cause of weathering and accelerated biological aging. Residing in a disadvantaged neighborhood increases biological wear and tear that ultimately leads to onset of chronic illness, but access to perceived collective efficacy buffers the impact of these neighborhood effects. From an intervention standpoint, identifying such an integrated model may help inform future health-promoting interventions. En ligne : http://dx.doi.org/10.1017/S0954579418000937 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=370 Childhood adversity is linked to adult health among African Americans via adolescent weight gain and effects are genetically moderated / Steven R.H. BEACH in Development and Psychopathology, 33-3 (August 2021)
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Titre : Childhood adversity is linked to adult health among African Americans via adolescent weight gain and effects are genetically moderated Type de document : texte imprimé Auteurs : Steven R.H. BEACH, Auteur ; Mei Ling ONG, Auteur ; Man-Kit LEI, Auteur ; Eric KLOPACK, Auteur ; Sierra E. CARTER, Auteur ; Ronald L. SIMONS, Auteur ; Frederick X. GIBBONS, Auteur ; Justin A. LAVNER, Auteur ; Robert A. PHILIBERT, Auteur ; Kaixiong YE, Auteur Article en page(s) : p.803-820 Langues : Anglais (eng) Mots-clés : African American childhood adversity genetic risk health disparities obesity Index. décimale : PER Périodiques Résumé : Identifying the mechanisms linking early experiences, genetic risk factors, and their interaction with later health consequences is central to the development of preventive interventions and identifying potential boundary conditions for their efficacy. In the current investigation of 412 African American adolescents followed across a 20-year period, we examined change in body mass index (BMI) across adolescence as one possible mechanism linking childhood adversity and adult health. We found associations of childhood adversity with objective indicators of young adult health, including a cardiometabolic risk index, a methylomic aging index, and a count of chronic health conditions. Childhood adversities were associated with objective indicators indirectly through their association with gains in BMI across adolescence and early adulthood. We also found evidence of an association of genetic risk with weight gain across adolescence and young adult health, as well as genetic moderation of childhood adversity's effect on gains in BMI, resulting in moderated mediation. These patterns indicated that genetic risk moderated the indirect pathways from childhood adversity to young adult health outcomes and childhood adversity moderated the indirect pathways from genetic risk to young adult health outcomes through effects on weight gain during adolescence and early adulthood. En ligne : http://dx.doi.org/10.1017/S0954579420000061 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=457
in Development and Psychopathology > 33-3 (August 2021) . - p.803-820[article] Childhood adversity is linked to adult health among African Americans via adolescent weight gain and effects are genetically moderated [texte imprimé] / Steven R.H. BEACH, Auteur ; Mei Ling ONG, Auteur ; Man-Kit LEI, Auteur ; Eric KLOPACK, Auteur ; Sierra E. CARTER, Auteur ; Ronald L. SIMONS, Auteur ; Frederick X. GIBBONS, Auteur ; Justin A. LAVNER, Auteur ; Robert A. PHILIBERT, Auteur ; Kaixiong YE, Auteur . - p.803-820.
Langues : Anglais (eng)
in Development and Psychopathology > 33-3 (August 2021) . - p.803-820
Mots-clés : African American childhood adversity genetic risk health disparities obesity Index. décimale : PER Périodiques Résumé : Identifying the mechanisms linking early experiences, genetic risk factors, and their interaction with later health consequences is central to the development of preventive interventions and identifying potential boundary conditions for their efficacy. In the current investigation of 412 African American adolescents followed across a 20-year period, we examined change in body mass index (BMI) across adolescence as one possible mechanism linking childhood adversity and adult health. We found associations of childhood adversity with objective indicators of young adult health, including a cardiometabolic risk index, a methylomic aging index, and a count of chronic health conditions. Childhood adversities were associated with objective indicators indirectly through their association with gains in BMI across adolescence and early adulthood. We also found evidence of an association of genetic risk with weight gain across adolescence and young adult health, as well as genetic moderation of childhood adversity's effect on gains in BMI, resulting in moderated mediation. These patterns indicated that genetic risk moderated the indirect pathways from childhood adversity to young adult health outcomes and childhood adversity moderated the indirect pathways from genetic risk to young adult health outcomes through effects on weight gain during adolescence and early adulthood. En ligne : http://dx.doi.org/10.1017/S0954579420000061 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=457 Childhood adversity predicts black young adults? DNA methylation-based accelerated aging: A dual pathway model / Steven R.H. BEACH in Development and Psychopathology, 34-2 (May 2022)
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[article]
Titre : Childhood adversity predicts black young adults? DNA methylation-based accelerated aging: A dual pathway model Type de document : texte imprimé Auteurs : Steven R.H. BEACH, Auteur ; Frederick X. GIBBONS, Auteur ; Sierra E. CARTER, Auteur ; Mei Ling ONG, Auteur ; Justin A. LAVNER, Auteur ; Man-Kit LEI, Auteur ; Ronald L. SIMONS, Auteur ; Meg GERRARD, Auteur ; Robert A. PHILIBERT, Auteur Article en page(s) : 689-703 Langues : Anglais (eng) Mots-clés : discrimination DNAm-aging FKBP5 Life History Index. décimale : PER Périodiques Résumé : We expand upon prior work (Gibbons et al., ) relating childhood stressor effects, particularly harsh childhood environments, to risky behavior and ultimately physical health by adding longer-term outcomes ? deoxyribonucleic acid (DNA) methylation-based measures of accelerated aging (DNAm-aging). Further, following work on the effects of early exposure to danger (McLaughlin et al., ), we also identify an additional pathway from harsh childhood environments to DNAm-aging that we label the danger/FKBP5 pathway, which includes early exposure to dangerous community conditions that are thought to impact glucocorticoid regulation and pro-inflammatory mechanisms. Because different DNAm-aging indices provide different windows on accelerated aging, we contrast effects on early indices of DNAm-aging based on chronological age with later indices that focused on predicting biological outcomes. We utilize data from Family and Community Health Study participants (N = 449) from age 10 to 29. We find that harshness influences parenting, which, in turn, influences accelerated DNAm-aging through the risky cognitions and substance use (i.e., behavioral) pathway outlined by Gibbons et al. (). Harshness is also associated with increased exposure to threat/danger, which, in turn, leads to accelerated DNAm-aging through effects on FKBP5 activity and enhanced pro-inflammatory tendencies (i.e., the danger/FKBP5 pathway). En ligne : http://dx.doi.org/10.1017/s0954579421001541 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=474
in Development and Psychopathology > 34-2 (May 2022) . - 689-703[article] Childhood adversity predicts black young adults? DNA methylation-based accelerated aging: A dual pathway model [texte imprimé] / Steven R.H. BEACH, Auteur ; Frederick X. GIBBONS, Auteur ; Sierra E. CARTER, Auteur ; Mei Ling ONG, Auteur ; Justin A. LAVNER, Auteur ; Man-Kit LEI, Auteur ; Ronald L. SIMONS, Auteur ; Meg GERRARD, Auteur ; Robert A. PHILIBERT, Auteur . - 689-703.
Langues : Anglais (eng)
in Development and Psychopathology > 34-2 (May 2022) . - 689-703
Mots-clés : discrimination DNAm-aging FKBP5 Life History Index. décimale : PER Périodiques Résumé : We expand upon prior work (Gibbons et al., ) relating childhood stressor effects, particularly harsh childhood environments, to risky behavior and ultimately physical health by adding longer-term outcomes ? deoxyribonucleic acid (DNA) methylation-based measures of accelerated aging (DNAm-aging). Further, following work on the effects of early exposure to danger (McLaughlin et al., ), we also identify an additional pathway from harsh childhood environments to DNAm-aging that we label the danger/FKBP5 pathway, which includes early exposure to dangerous community conditions that are thought to impact glucocorticoid regulation and pro-inflammatory mechanisms. Because different DNAm-aging indices provide different windows on accelerated aging, we contrast effects on early indices of DNAm-aging based on chronological age with later indices that focused on predicting biological outcomes. We utilize data from Family and Community Health Study participants (N = 449) from age 10 to 29. We find that harshness influences parenting, which, in turn, influences accelerated DNAm-aging through the risky cognitions and substance use (i.e., behavioral) pathway outlined by Gibbons et al. (). Harshness is also associated with increased exposure to threat/danger, which, in turn, leads to accelerated DNAm-aging through effects on FKBP5 activity and enhanced pro-inflammatory tendencies (i.e., the danger/FKBP5 pathway). En ligne : http://dx.doi.org/10.1017/s0954579421001541 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=474 Is serotonin transporter genotype associated with epigenetic susceptibility or vulnerability? Examination of the impact of socioeconomic status risk on African American youth / Steven R.H. BEACH in Development and Psychopathology, 26-2 (May 2014)
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Titre : Is serotonin transporter genotype associated with epigenetic susceptibility or vulnerability? Examination of the impact of socioeconomic status risk on African American youth Type de document : texte imprimé Auteurs : Steven R.H. BEACH, Auteur ; Gene H. BRODY, Auteur ; Man-Kit LEI, Auteur ; Sangjin KIM, Auteur ; Juan CUI, Auteur ; Robert A. PHILIBERT, Auteur Article en page(s) : p.289-304 Index. décimale : PER Périodiques Résumé : We hypothesized that presence of the short allele in the promoter region of the serotonin transporter would moderate the effect of early cumulative socioeconomic status (SES) risk on epigenetic change among African American youth. Contrasting hypotheses regarding the shape of the interaction effect were generated using vulnerability and susceptibility frameworks and applied to data from a sample of 388 African American youth. Early cumulative SES risk assessed at 11–13 years based on parent report interacted with presence of the short allele to predict differential methylation assessed at age 19. Across multiple tests, a differential susceptibility perspective rather than a diathesis–stress framework best fit the data for genes associated with depression, consistently demonstrating greater epigenetic response to early cumulative SES risk among short allele carriers. A pattern consistent with greater impact among short allele carriers also was observed using all cytosine nucleotide–phosphate–guanine nucleotide sites across the genome that were differentially affected by early cumulative SES risk. We conclude that the short allele is associated with increased responsiveness to early cumulative SES risk among African American youth, leading to epigenetic divergence for depression-related genes in response to exposure to heightened SES risk among short allele carriers in a “for better” or “for worse” pattern. En ligne : http://dx.doi.org/10.1017/S0954579413000990 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=230
in Development and Psychopathology > 26-2 (May 2014) . - p.289-304[article] Is serotonin transporter genotype associated with epigenetic susceptibility or vulnerability? Examination of the impact of socioeconomic status risk on African American youth [texte imprimé] / Steven R.H. BEACH, Auteur ; Gene H. BRODY, Auteur ; Man-Kit LEI, Auteur ; Sangjin KIM, Auteur ; Juan CUI, Auteur ; Robert A. PHILIBERT, Auteur . - p.289-304.
in Development and Psychopathology > 26-2 (May 2014) . - p.289-304
Index. décimale : PER Périodiques Résumé : We hypothesized that presence of the short allele in the promoter region of the serotonin transporter would moderate the effect of early cumulative socioeconomic status (SES) risk on epigenetic change among African American youth. Contrasting hypotheses regarding the shape of the interaction effect were generated using vulnerability and susceptibility frameworks and applied to data from a sample of 388 African American youth. Early cumulative SES risk assessed at 11–13 years based on parent report interacted with presence of the short allele to predict differential methylation assessed at age 19. Across multiple tests, a differential susceptibility perspective rather than a diathesis–stress framework best fit the data for genes associated with depression, consistently demonstrating greater epigenetic response to early cumulative SES risk among short allele carriers. A pattern consistent with greater impact among short allele carriers also was observed using all cytosine nucleotide–phosphate–guanine nucleotide sites across the genome that were differentially affected by early cumulative SES risk. We conclude that the short allele is associated with increased responsiveness to early cumulative SES risk among African American youth, leading to epigenetic divergence for depression-related genes in response to exposure to heightened SES risk among short allele carriers in a “for better” or “for worse” pattern. En ligne : http://dx.doi.org/10.1017/S0954579413000990 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=230 Methylation of the oxytocin receptor gene mediates the effect of adversity on negative schemas and depression / Ronald L. SIMONS in Development and Psychopathology, 29-3 (August 2017)
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Titre : Methylation of the oxytocin receptor gene mediates the effect of adversity on negative schemas and depression Type de document : texte imprimé Auteurs : Ronald L. SIMONS, Auteur ; Man-Kit LEI, Auteur ; Steven R.H. BEACH, Auteur ; Carolyn E. CUTRONA, Auteur ; Robert A. PHILIBERT, Auteur Article en page(s) : p.725-736 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Abstract Building upon various lines of research, we posited that methylation of the oxytocin receptor gene (OXTR) would mediate the effect of adult adversity on increased commitment to negative schemas and in turn the development of depression. We tested our model using structural equation modeling and longitudinal data from a sample of 100 middle-aged, African American women. The results provided strong support for the model. Analysis of the 12 CpG sites available for the promoter region of the OXTR gene identified four factors. One of these factors was related to the study variables, whereas the others were not. This factor mediated the effect of adult adversity on schemas relating to pessimism and distrust, and these schemas, in turn, mediated the impact of OXTR methylation on depression. All indirect effects were statistically significant, and they remained significant after controlling for childhood trauma, age, romantic relationship status, individual differences in cell types, and average level of genome-wide methylation. These finding suggest that epigenetic regulation of the oxytocin system may be a mechanism whereby the negative cognitions central to depression become biologically embedded. En ligne : http://dx.doi.org/10.1017/s0954579416000420 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=311
in Development and Psychopathology > 29-3 (August 2017) . - p.725-736[article] Methylation of the oxytocin receptor gene mediates the effect of adversity on negative schemas and depression [texte imprimé] / Ronald L. SIMONS, Auteur ; Man-Kit LEI, Auteur ; Steven R.H. BEACH, Auteur ; Carolyn E. CUTRONA, Auteur ; Robert A. PHILIBERT, Auteur . - p.725-736.
Langues : Anglais (eng)
in Development and Psychopathology > 29-3 (August 2017) . - p.725-736
Index. décimale : PER Périodiques Résumé : Abstract Building upon various lines of research, we posited that methylation of the oxytocin receptor gene (OXTR) would mediate the effect of adult adversity on increased commitment to negative schemas and in turn the development of depression. We tested our model using structural equation modeling and longitudinal data from a sample of 100 middle-aged, African American women. The results provided strong support for the model. Analysis of the 12 CpG sites available for the promoter region of the OXTR gene identified four factors. One of these factors was related to the study variables, whereas the others were not. This factor mediated the effect of adult adversity on schemas relating to pessimism and distrust, and these schemas, in turn, mediated the impact of OXTR methylation on depression. All indirect effects were statistically significant, and they remained significant after controlling for childhood trauma, age, romantic relationship status, individual differences in cell types, and average level of genome-wide methylation. These finding suggest that epigenetic regulation of the oxytocin system may be a mechanism whereby the negative cognitions central to depression become biologically embedded. En ligne : http://dx.doi.org/10.1017/s0954579416000420 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=311 Smoking in young adulthood among African Americans: Interconnected effects of supportive parenting in early adolescence, proinflammatory epitype, and young adult stress / Steven R.H. BEACH in Development and Psychopathology, 29-3 (August 2017)
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PermalinkThe effect of neighborhood disadvantage, social ties, and genetic variation on the antisocial behavior of African American women: A multilevel analysis / Man-Kit LEI in Development and Psychopathology, 26-4 (Part 1) (November 2014)
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PermalinkWhen inflammation and depression go together: The longitudinal effects of parent–child relationships / Steven R.H. BEACH in Development and Psychopathology, 29-5 (December 2017)
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