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Auteur Ronald SEIFER |
Documents disponibles écrits par cet auteur (11)



Adversity in preschool-aged children: Effects on salivary interleukin-1? / Audrey R. TYRKA in Development and Psychopathology, 27-2 (May 2015)
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[article]
Titre : Adversity in preschool-aged children: Effects on salivary interleukin-1? Type de document : Texte imprimé et/ou numérique Auteurs : Audrey R. TYRKA, Auteur ; Stephanie H. PARADE, Auteur ; Thomas R. VALENTINE, Auteur ; Nicole M. ESLINGER, Auteur ; Ronald SEIFER, Auteur Article en page(s) : p.567-576 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Exposure to early life adversity is linked to impaired affective, cognitive, and behavioral functioning and increases risk for various psychiatric and medical conditions. Stress-induced increases in pro-inflammatory cytokines may be a biological mechanism of these effects. Few studies have examined cytokine levels in children experiencing early life adversity, and very little research has investigated cytokines or other markers of inflammation in saliva. In the present study, we examined salivary interleukin (IL)-1? and C-reactive protein (CRP) levels in relation to stress exposure in 40 children aged 3 to 5 years who were enrolled in a larger study of early life adversity. Childhood maltreatment status was assessed via review of child welfare records. Contextual stress exposure, traumatic life event history, and symptoms of psychopathology were assessed via caregiver interviews at a home visit. In a subsequent visit, salivary IL-1? and CRP were obtained before and after participation in four emotion-eliciting tasks. The number of past-month contextual stressors, lifetime contextual stressors, and traumatic life events each demonstrated a significant main effect on IL-1?. Baseline IL-1? was positively associated with each of the significant main-effect adversities. Postchallenge IL-1? displayed positive associations with each adversity variable, but these were not significant. CRP was not significantly associated with any of the adversity variables. Given the evidence suggesting the involvement of IL-1? in the neuropathology of psychiatric conditions, these results may have important implications for developmental outcomes. En ligne : http://dx.doi.org/10.1017/S0954579415000164 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=257
in Development and Psychopathology > 27-2 (May 2015) . - p.567-576[article] Adversity in preschool-aged children: Effects on salivary interleukin-1? [Texte imprimé et/ou numérique] / Audrey R. TYRKA, Auteur ; Stephanie H. PARADE, Auteur ; Thomas R. VALENTINE, Auteur ; Nicole M. ESLINGER, Auteur ; Ronald SEIFER, Auteur . - p.567-576.
Langues : Anglais (eng)
in Development and Psychopathology > 27-2 (May 2015) . - p.567-576
Index. décimale : PER Périodiques Résumé : Exposure to early life adversity is linked to impaired affective, cognitive, and behavioral functioning and increases risk for various psychiatric and medical conditions. Stress-induced increases in pro-inflammatory cytokines may be a biological mechanism of these effects. Few studies have examined cytokine levels in children experiencing early life adversity, and very little research has investigated cytokines or other markers of inflammation in saliva. In the present study, we examined salivary interleukin (IL)-1? and C-reactive protein (CRP) levels in relation to stress exposure in 40 children aged 3 to 5 years who were enrolled in a larger study of early life adversity. Childhood maltreatment status was assessed via review of child welfare records. Contextual stress exposure, traumatic life event history, and symptoms of psychopathology were assessed via caregiver interviews at a home visit. In a subsequent visit, salivary IL-1? and CRP were obtained before and after participation in four emotion-eliciting tasks. The number of past-month contextual stressors, lifetime contextual stressors, and traumatic life events each demonstrated a significant main effect on IL-1?. Baseline IL-1? was positively associated with each of the significant main-effect adversities. Postchallenge IL-1? displayed positive associations with each adversity variable, but these were not significant. CRP was not significantly associated with any of the adversity variables. Given the evidence suggesting the involvement of IL-1? in the neuropathology of psychiatric conditions, these results may have important implications for developmental outcomes. En ligne : http://dx.doi.org/10.1017/S0954579415000164 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=257 Brief Report: Attachment Security in Infants At-Risk for Autism Spectrum Disorders / John D. HALTIGAN in Journal of Autism and Developmental Disorders, 41-7 (July 2011)
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Titre : Brief Report: Attachment Security in Infants At-Risk for Autism Spectrum Disorders Type de document : Texte imprimé et/ou numérique Auteurs : John D. HALTIGAN, Auteur ; Naomi V. EKAS, Auteur ; Ronald SEIFER, Auteur ; Daniel S. MESSINGER, Auteur Année de publication : 2011 Article en page(s) : p.962-967 Langues : Anglais (eng) Mots-clés : Attachment Autism Infant-sibling Risk Strange-situation procedure Index. décimale : PER Périodiques Résumé : Little is known about attachment security and disorganization in children who are at genetic risk for an Autism Spectrum Disorder (ASD) prior to a possible diagnosis. The present study examined distributions of attachment security and disorganization at 15-months of age in a sample of infant siblings of older children with (ASD-sibs; n = 51) or without (COMP-sibs; n = 34) an ASD. ASD-sibs were not more or less likely to evince attachment insecurity or disorganization than COMP-sibs. However, relative to COMP-sibs, the rate of B1–B2 secure subclassifications was disproportionately larger in the ASD-sib group. Results suggest that ASD-sibs are not less likely to form secure affectional bonds with their caregivers than COMP-sibs, but may differ from COMP-sibs in their expression of attachment security. En ligne : http://dx.doi.org/10.1007/s10803-010-1107-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=130
in Journal of Autism and Developmental Disorders > 41-7 (July 2011) . - p.962-967[article] Brief Report: Attachment Security in Infants At-Risk for Autism Spectrum Disorders [Texte imprimé et/ou numérique] / John D. HALTIGAN, Auteur ; Naomi V. EKAS, Auteur ; Ronald SEIFER, Auteur ; Daniel S. MESSINGER, Auteur . - 2011 . - p.962-967.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 41-7 (July 2011) . - p.962-967
Mots-clés : Attachment Autism Infant-sibling Risk Strange-situation procedure Index. décimale : PER Périodiques Résumé : Little is known about attachment security and disorganization in children who are at genetic risk for an Autism Spectrum Disorder (ASD) prior to a possible diagnosis. The present study examined distributions of attachment security and disorganization at 15-months of age in a sample of infant siblings of older children with (ASD-sibs; n = 51) or without (COMP-sibs; n = 34) an ASD. ASD-sibs were not more or less likely to evince attachment insecurity or disorganization than COMP-sibs. However, relative to COMP-sibs, the rate of B1–B2 secure subclassifications was disproportionately larger in the ASD-sib group. Results suggest that ASD-sibs are not less likely to form secure affectional bonds with their caregivers than COMP-sibs, but may differ from COMP-sibs in their expression of attachment security. En ligne : http://dx.doi.org/10.1007/s10803-010-1107-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=130 Change in FK506 binding protein 5 (FKBP5) methylation over time among preschoolers with adversity / Stephanie H. PARADE in Development and Psychopathology, 29-5 (December 2017)
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Titre : Change in FK506 binding protein 5 (FKBP5) methylation over time among preschoolers with adversity Type de document : Texte imprimé et/ou numérique Auteurs : Stephanie H. PARADE, Auteur ; Justin PARENT, Auteur ; Kantoniony RABEMANANJARA, Auteur ; Ronald SEIFER, Auteur ; Carmen J. MARSIT, Auteur ; Bao-Zhu YANG, Auteur ; Huiping ZHANG, Auteur ; Audrey R. TYRKA, Auteur Article en page(s) : p.1627-1634 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : FK506 binding protein 5 (FKBP5) alters stress response system functioning, and childhood maltreatment is associated with methylation of the FKBP5 gene. Yet it is unknown if maltreatment contributes to change in FKBP5 methylation over time. The current study draws upon a sample of 231 preschoolers, including 123 with child welfare documentation of moderate to severe maltreatment in the past 6 months, to understand if maltreatment contributes to change in FKBP5 methylation over a 6-month period. Review of child protection records and semistructured interviews in the home were used to assess maltreatment and exposure to other contextual stressors, as well as service utilization. Methylation of FKBP5 at two CpG sites in intron 7 was measured from saliva DNA at the time of initial study enrollment, and 6 months following enrollment. Child maltreatment was associated with change in FKBP5 methylation over time, but only when children were exposed to high levels of other contextual stressors. Service utilization was associated with increases in methylation over time, but only among children with the FKPB5 rs1360780 protective CC genotype. Methylation of FKBP5 is sensitive to stress exposure and may be a mechanism linking early adversity to long-term health and developmental outcomes. En ligne : http://dx.doi.org/10.1017/S0954579417001286 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=323
in Development and Psychopathology > 29-5 (December 2017) . - p.1627-1634[article] Change in FK506 binding protein 5 (FKBP5) methylation over time among preschoolers with adversity [Texte imprimé et/ou numérique] / Stephanie H. PARADE, Auteur ; Justin PARENT, Auteur ; Kantoniony RABEMANANJARA, Auteur ; Ronald SEIFER, Auteur ; Carmen J. MARSIT, Auteur ; Bao-Zhu YANG, Auteur ; Huiping ZHANG, Auteur ; Audrey R. TYRKA, Auteur . - p.1627-1634.
Langues : Anglais (eng)
in Development and Psychopathology > 29-5 (December 2017) . - p.1627-1634
Index. décimale : PER Périodiques Résumé : FK506 binding protein 5 (FKBP5) alters stress response system functioning, and childhood maltreatment is associated with methylation of the FKBP5 gene. Yet it is unknown if maltreatment contributes to change in FKBP5 methylation over time. The current study draws upon a sample of 231 preschoolers, including 123 with child welfare documentation of moderate to severe maltreatment in the past 6 months, to understand if maltreatment contributes to change in FKBP5 methylation over a 6-month period. Review of child protection records and semistructured interviews in the home were used to assess maltreatment and exposure to other contextual stressors, as well as service utilization. Methylation of FKBP5 at two CpG sites in intron 7 was measured from saliva DNA at the time of initial study enrollment, and 6 months following enrollment. Child maltreatment was associated with change in FKBP5 methylation over time, but only when children were exposed to high levels of other contextual stressors. Service utilization was associated with increases in methylation over time, but only among children with the FKPB5 rs1360780 protective CC genotype. Methylation of FKBP5 is sensitive to stress exposure and may be a mechanism linking early adversity to long-term health and developmental outcomes. En ligne : http://dx.doi.org/10.1017/S0954579417001286 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=323 Childhood maltreatment and methylation of FK506 binding protein 5 gene (FKBP5) / Audrey R. TYRKA in Development and Psychopathology, 27-4 (Part 2) (November 2015)
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Titre : Childhood maltreatment and methylation of FK506 binding protein 5 gene (FKBP5) Type de document : Texte imprimé et/ou numérique Auteurs : Audrey R. TYRKA, Auteur ; Kathryn K. RIDOUT, Auteur ; Stephanie H. PARADE, Auteur ; Alison PAQUETTE, Auteur ; Carmen J. MARSIT, Auteur ; Ronald SEIFER, Auteur Article en page(s) : p.1637-1645 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : A growing body of evidence suggests that alterations of the stress response system may be a mechanism by which childhood maltreatment alters risk for psychopathology. FK506 binding protein 51 (FKBP5) binds to the glucocorticoid receptor and alters its ability to respond to stress signaling. The aim of the present study was to examine methylation of the FKBP5 gene (FKBP5), and the role of an FKBP5 genetic variant, in relation to childhood maltreatment in a sample of impoverished preschool-aged children. One hundred seventy-four families participated in this study, including 69 with child welfare documentation of moderate to severe maltreatment in the past 6 months. The children, who ranged in age from 3 to 5 years, were racially and ethnically diverse. Structured record review and interviews in the home were used to assess a history of maltreatment, other traumas, and contextual life stressors; and a composite variable assessed the number exposures to these adversities. Methylation of two sites in intron 7 of FKBP5 was measured via sodium bisulfite pyrosequencing. Maltreated children had significantly lower levels of methylation at both CpG sites (p < .05). Lifetime contextual stress exposure showed a trend for lower levels of methylation at one of the sites, and a trend for an interaction with the FKBP5 polymorphism. A composite adversity variable was associated with lower levels of methylation at one of the sites as well (p < .05). FKBP5 alters glucocorticoid receptor responsiveness, and FKBP5 gene methylation may be a mechanism of the biobehavioral effects of adverse exposures in young children. En ligne : http://dx.doi.org/10.1017/S0954579415000991 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=273
in Development and Psychopathology > 27-4 (Part 2) (November 2015) . - p.1637-1645[article] Childhood maltreatment and methylation of FK506 binding protein 5 gene (FKBP5) [Texte imprimé et/ou numérique] / Audrey R. TYRKA, Auteur ; Kathryn K. RIDOUT, Auteur ; Stephanie H. PARADE, Auteur ; Alison PAQUETTE, Auteur ; Carmen J. MARSIT, Auteur ; Ronald SEIFER, Auteur . - p.1637-1645.
Langues : Anglais (eng)
in Development and Psychopathology > 27-4 (Part 2) (November 2015) . - p.1637-1645
Index. décimale : PER Périodiques Résumé : A growing body of evidence suggests that alterations of the stress response system may be a mechanism by which childhood maltreatment alters risk for psychopathology. FK506 binding protein 51 (FKBP5) binds to the glucocorticoid receptor and alters its ability to respond to stress signaling. The aim of the present study was to examine methylation of the FKBP5 gene (FKBP5), and the role of an FKBP5 genetic variant, in relation to childhood maltreatment in a sample of impoverished preschool-aged children. One hundred seventy-four families participated in this study, including 69 with child welfare documentation of moderate to severe maltreatment in the past 6 months. The children, who ranged in age from 3 to 5 years, were racially and ethnically diverse. Structured record review and interviews in the home were used to assess a history of maltreatment, other traumas, and contextual life stressors; and a composite variable assessed the number exposures to these adversities. Methylation of two sites in intron 7 of FKBP5 was measured via sodium bisulfite pyrosequencing. Maltreated children had significantly lower levels of methylation at both CpG sites (p < .05). Lifetime contextual stress exposure showed a trend for lower levels of methylation at one of the sites, and a trend for an interaction with the FKBP5 polymorphism. A composite adversity variable was associated with lower levels of methylation at one of the sites as well (p < .05). FKBP5 alters glucocorticoid receptor responsiveness, and FKBP5 gene methylation may be a mechanism of the biobehavioral effects of adverse exposures in young children. En ligne : http://dx.doi.org/10.1017/S0954579415000991 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=273 Dynamic stress-related epigenetic regulation of the glucocorticoid receptor gene promoter during early development: The role of child maltreatment / Justin PARENT in Development and Psychopathology, 29-5 (December 2017)
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Titre : Dynamic stress-related epigenetic regulation of the glucocorticoid receptor gene promoter during early development: The role of child maltreatment Type de document : Texte imprimé et/ou numérique Auteurs : Justin PARENT, Auteur ; Stephanie H. PARADE, Auteur ; Laura E. LAUMANN, Auteur ; Kathryn K. RIDOUT, Auteur ; Bao-Zhu YANG, Auteur ; Carmen J. MARSIT, Auteur ; Ronald SEIFER, Auteur ; Audrey R. TYRKA, Auteur Article en page(s) : p.1635-1648 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Epigenetics processes may play a vital role in the biological embedding of early environmental adversity and the development of psychopathology. Accumulating evidence suggests that maltreatment is linked to methylation of the glucocorticoid receptor gene, nuclear receptor subfamily 3, group C, member 1 (NR3C1), which is a key regulator of the hypothalamus–pituitary–adrenal axis. However, prior work has been exclusively cross-sectional, greatly constraining our understanding of stress-related epigenetic processes over time. In the current study, we examined the effect of maltreatment and other adversity on change in NR3C1 methylation among at-risk preschoolers to begin to characterize within-child epigenetic changes during this sensitive developmental period. Participants were 260 preschoolers (3–5 years old, 53.8% female), including 51.5% with moderate to severe maltreatment in the past 6 months. Child protection records, semistructured interviews, and parent reports were used to assess child stress exposure. Methylation of exons 1D and 1F of NR3C1 via saliva DNA were measured at two time points approximately 6 months apart. Results indicate that maltreated children evidence higher baseline levels of NR3C1 methylation, significant decreases in methylation over time, and then at follow-up, lower levels of methylation, relative to nonmaltreated preschoolers. Findings from the current study highlight the complex nature of stress-related epigenetic processes during early development. En ligne : http://dx.doi.org/10.1017/S0954579417001298 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=323
in Development and Psychopathology > 29-5 (December 2017) . - p.1635-1648[article] Dynamic stress-related epigenetic regulation of the glucocorticoid receptor gene promoter during early development: The role of child maltreatment [Texte imprimé et/ou numérique] / Justin PARENT, Auteur ; Stephanie H. PARADE, Auteur ; Laura E. LAUMANN, Auteur ; Kathryn K. RIDOUT, Auteur ; Bao-Zhu YANG, Auteur ; Carmen J. MARSIT, Auteur ; Ronald SEIFER, Auteur ; Audrey R. TYRKA, Auteur . - p.1635-1648.
Langues : Anglais (eng)
in Development and Psychopathology > 29-5 (December 2017) . - p.1635-1648
Index. décimale : PER Périodiques Résumé : Epigenetics processes may play a vital role in the biological embedding of early environmental adversity and the development of psychopathology. Accumulating evidence suggests that maltreatment is linked to methylation of the glucocorticoid receptor gene, nuclear receptor subfamily 3, group C, member 1 (NR3C1), which is a key regulator of the hypothalamus–pituitary–adrenal axis. However, prior work has been exclusively cross-sectional, greatly constraining our understanding of stress-related epigenetic processes over time. In the current study, we examined the effect of maltreatment and other adversity on change in NR3C1 methylation among at-risk preschoolers to begin to characterize within-child epigenetic changes during this sensitive developmental period. Participants were 260 preschoolers (3–5 years old, 53.8% female), including 51.5% with moderate to severe maltreatment in the past 6 months. Child protection records, semistructured interviews, and parent reports were used to assess child stress exposure. Methylation of exons 1D and 1F of NR3C1 via saliva DNA were measured at two time points approximately 6 months apart. Results indicate that maltreated children evidence higher baseline levels of NR3C1 methylation, significant decreases in methylation over time, and then at follow-up, lower levels of methylation, relative to nonmaltreated preschoolers. Findings from the current study highlight the complex nature of stress-related epigenetic processes during early development. En ligne : http://dx.doi.org/10.1017/S0954579417001298 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=323 Effects of prenatal substance exposure on infant temperament vary by context / Robin L. LOCKE in Development and Psychopathology, 28-2 (May 2016)
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PermalinkInterleukin 1B gene (IL1B) variation and internalizing symptoms in maltreated preschoolers / Kathryn K. RIDOUT in Development and Psychopathology, 26-4 (Part 2) (November 2014)
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PermalinkMethylation of exons 1D, 1F, and 1H of the glucocorticoid receptor gene promoter and exposure to adversity in preschool-aged children / Audrey R. TYRKA in Development and Psychopathology, 27-2 (May 2015)
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PermalinkPsychological and school functioning of Latino siblings of children with intellectual disability / Debra LOBATO in Journal of Child Psychology and Psychiatry, 52-6 (June 2011)
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PermalinkStress exposure and psychopathology alter methylation of the serotonin receptor 2A (HTR2A) gene in preschoolers / Stephanie H. PARADE in Development and Psychopathology, 29-5 (December 2017)
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PermalinkVagal tone as a resilience factor in children with prenatal cocaine exposure / Stephen J. SHEINKOPF in Development and Psychopathology, 19-3 (Summer 2007)
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