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Examining the Effects of Prenatal Urinary Lead on Child Outcomes in Context
Examining the Effects of Prenatal Urinary Lead on Child Outcomes in Context
Examining the Effects of Prenatal Urinary Lead on Child Outcomes in Context

Detailed Information

Material Type  
 단행본
 
0017160905
Date and Time of Latest Transaction  
20250211151134
ISBN  
9798382719016
DDC  
136
Author  
Wylie, Amanda Catherine.
Title/Author  
Examining the Effects of Prenatal Urinary Lead on Child Outcomes in Context
Publish Info  
[Sl] : The University of North Carolina at Chapel Hill, 2024
Publish Info  
Ann Arbor : ProQuest Dissertations & Theses, 2024
Material Info  
222 p
General Note  
Source: Dissertations Abstracts International, Volume: 85-11, Section: B.
General Note  
Advisor: Propper, Cathi B.
학위논문주기  
Thesis (Ph.D.)--The University of North Carolina at Chapel Hill, 2024.
Abstracts/Etc  
요약Though lead is a well-known neurotoxicant, extant studies examining the associations of prenatal lead on offspring cognitive and socioemotional functioning have been inconsistent in their observed affected domains, suggesting that contextual factors may modify the toxicity of lead on fetal neurodevelopment (Bellinger, 1995). This compilation of studies explores how social and physiological contextual factors co-occur with prenatal lead exposure and may contribute to the heterogeneity of the associations of prenatal lead on child outcomes. This project relies on data from the Brain and Early Experience (BEE) Study, an analytic cohort of 201 mother-child dyads participating from mid-pregnancy through early childhood. I examine associations between prenatal urinary lead and child language, effortful control, and negative affect within three contexts: the prenatal social context (Study 1), a prenatal physiological context (Study 2), and a postnatal social context (Study 3). In Study 1, I explored latent profiles of prenatal exposure to lead and socioeconomic, psychological, and physical health stressors. I uncovered three prenatal latent profiles, characterized as psychologically stressed, socioeconomically stressed, and advantaged, and I found that prenatal latent profile membership was differentially related to children's early language skills and negative affect. In Study 2, I tested whether maternal prenatal microbiota diversity mediates or moderates the associations of prenatal urinary lead on child outcomes. I found weak evidence that prenatal lead predicted higher microbiota diversity and that the negative association of prenatal lead on child language was conditional upon mothers having high prenatal microbiota diversity. In Study 3, I examined whether positive caregiving or cognitive enrichment experienced in infancy could buffer the associations of prenatal lead on child outcomes. Results revealed that high cognitive enrichment postnatally mitigated the associations of prenatal lead on early child language skills. Within this perinatal cohort, lead exposure and its moderators, microbiota diversity and cognitive enrichment, were not highly correlated with socioeconomic indicators. Findings from these studies can inspire future research and intervention efforts into how social and physiological contextual factors could be leveraged to buffer the toxic effects of prenatal lead on fetal neurodevelopment.
Subject Added Entry-Topical Term  
Developmental psychology
Subject Added Entry-Topical Term  
Neurosciences
Subject Added Entry-Topical Term  
Psychology
Subject Added Entry-Topical Term  
Pediatrics
Index Term-Uncontrolled  
Developmental origins
Index Term-Uncontrolled  
Fetal neurodevelopment
Index Term-Uncontrolled  
Language skills
Index Term-Uncontrolled  
Lead exposure
Index Term-Uncontrolled  
Temperament
Added Entry-Corporate Name  
The University of North Carolina at Chapel Hill Psychology
Host Item Entry  
Dissertations Abstracts International. 85-11B.
Electronic Location and Access  
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■1001  ▼aWylie,  Amanda  Catherine.
■24510▼aExamining  the  Effects  of  Prenatal  Urinary  Lead  on  Child  Outcomes  in  Context
■260    ▼a[Sl]▼bThe  University  of  North  Carolina  at  Chapel  Hill▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a222  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-11,  Section:  B.
■500    ▼aAdvisor:  Propper,  Cathi  B.
■5021  ▼aThesis  (Ph.D.)--The  University  of  North  Carolina  at  Chapel  Hill,  2024.
■520    ▼aThough  lead  is  a  well-known  neurotoxicant,  extant  studies  examining  the  associations  of  prenatal  lead  on  offspring  cognitive  and  socioemotional  functioning  have  been  inconsistent  in  their  observed  affected  domains,  suggesting  that  contextual  factors  may  modify  the  toxicity  of  lead  on  fetal  neurodevelopment  (Bellinger,  1995).  This  compilation  of  studies  explores  how  social  and  physiological  contextual  factors  co-occur  with  prenatal  lead  exposure  and  may  contribute  to  the  heterogeneity  of  the  associations  of  prenatal  lead  on  child  outcomes.  This  project  relies  on  data  from  the  Brain  and  Early  Experience  (BEE)  Study,  an  analytic  cohort  of  201  mother-child  dyads  participating  from  mid-pregnancy  through  early  childhood.  I  examine  associations  between  prenatal  urinary  lead  and  child  language,  effortful  control,  and  negative  affect  within  three  contexts:  the  prenatal  social  context  (Study  1),  a  prenatal  physiological  context  (Study  2),  and  a  postnatal  social  context  (Study  3).  In  Study  1,  I  explored  latent  profiles  of  prenatal  exposure  to  lead  and  socioeconomic,  psychological,  and  physical  health  stressors.  I  uncovered  three  prenatal  latent  profiles,  characterized  as  psychologically  stressed,  socioeconomically  stressed,  and  advantaged,  and  I  found  that  prenatal  latent  profile  membership  was  differentially  related  to  children's  early  language  skills  and  negative  affect.  In  Study  2,  I  tested  whether  maternal  prenatal  microbiota  diversity  mediates  or  moderates  the  associations  of  prenatal  urinary  lead  on  child  outcomes.  I  found  weak  evidence  that  prenatal  lead  predicted higher  microbiota  diversity  and  that  the  negative  association  of  prenatal  lead  on  child  language  was  conditional  upon  mothers  having  high  prenatal  microbiota  diversity.  In  Study  3,  I  examined  whether  positive  caregiving  or  cognitive  enrichment  experienced  in  infancy  could  buffer  the  associations  of  prenatal  lead  on  child  outcomes.  Results  revealed  that  high  cognitive  enrichment  postnatally  mitigated  the  associations  of  prenatal  lead  on  early  child  language  skills.  Within  this  perinatal  cohort,  lead  exposure  and  its  moderators,  microbiota  diversity  and  cognitive  enrichment,  were  not  highly  correlated  with  socioeconomic  indicators.  Findings  from  these  studies  can  inspire  future  research  and  intervention  efforts  into  how  social  and  physiological  contextual  factors  could  be  leveraged  to  buffer  the  toxic  effects  of  prenatal  lead  on  fetal  neurodevelopment.
■590    ▼aSchool  code:  0153.
■650  4▼aDevelopmental  psychology
■650  4▼aNeurosciences
■650  4▼aPsychology
■650  4▼aPediatrics
■653    ▼aDevelopmental  origins
■653    ▼aFetal  neurodevelopment
■653    ▼aLanguage  skills
■653    ▼aLead  exposure
■653    ▼aTemperament
■690    ▼a0620
■690    ▼a0621
■690    ▼a0767
■690    ▼a0317
■71020▼aThe  University  of  North  Carolina  at  Chapel  Hill▼bPsychology.
■7730  ▼tDissertations  Abstracts  International▼g85-11B.
■790    ▼a0153
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17160905▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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