This application, Diffusion Tensor Imaging in Sexually Abused Children (SAC)is a proposal to supplement the NIMH funded study, """"""""PTSD & Childhood Sexual Abuse: Psychobiology,"""""""" RO1-MH63407. The parent proposal is a 5-year cross-sectional investigation with a one-year prospective follow-up to non-invasively examine the psychobiology of childhood posttraumatic stress disorder (PTSD) secondary to sexual abuse. In the parent study, we are examining the diagnosis and severity of PTSD on outcomes of biological stress system regulation and brain maturation. We will study 3 groups of 70 children (35 males/35 females) aged 6 to 12 years: children with PTSD secondary to sexual abuse, SAC without PTSD, and non-traumatized age and sociodemograghically comparable controls. Biological stress system regulation will be assessed by 24-hour urinary catecholamine and free cortisol levels. Brain maturation will be assessed by: magnetic resonance spectroscopy-based brain N-acetylaspartate concentrations, which reflect neuronal integrity, magnetic resonance imaging-based brain morphometry (cerebral, and amygdala/hippocampal volumes and corpus callosum (CC) area), and cognitive function. Although the parent grant examines cortical myelination through MRI-based morphometry, the present grant supplement proposes to enhance our measurements of cortical myelination and other microstructural aspects of brain development by adding an additional MRI acquisition protocol to our existing morphometric MRI scan, diffusion-weighted imaging (DWI). DWl is a functional neuroimaging mode which measures brain water-diffusion characteristics reflecting axon density and myelin abnormalities. It also permits enhanced discrimination of brain injuries involving sheering, contusion, and other manifestations of head trauma. DWl will assist in determining which SAC may have had other reasons than sexual abuse for adverse brain development. We hypothesize that compared with controls, SAC will show water-diffusion characteristics on DWl consistent with (1) decreased myelination and (2) slower age-related growth of the CCo We also hypothesize that (3) SAC with PTSD will show DWl characteristics reflecting decreased myelination and slower CC growth compared with SAC without PTSD. The study will enhance our knowledge of neuroanatomical/neuropsychological concomitants of sexual abuse in exchange for additional image analysis. ? ?

Agency
National Institute of Health (NIH)
Institute
National Institute of Mental Health (NIMH)
Type
Research Project (R01)
Project #
3R01MH063407-02S1
Application #
6732566
Study Section
Biobehavioral and Behavioral Processes 3 (BBBP)
Program Officer
Rumsey, Judith M
Project Start
2002-09-09
Project End
2007-08-31
Budget Start
2003-09-01
Budget End
2004-08-31
Support Year
2
Fiscal Year
2004
Total Cost
$154,000
Indirect Cost
Name
Duke University
Department
Psychiatry
Type
Schools of Medicine
DUNS #
044387793
City
Durham
State
NC
Country
United States
Zip Code
27705
Nooner, Kate B; Hooper, Stephen R; De Bellis, Michael D (2018) An examination of sex differences on neurocognitive functioning and behavior problems in maltreated youth. Psychol Trauma 10:435-443
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Morey, Rajendra A; Haswell, Courtney C; Hooper, Stephen R et al. (2016) Amygdala, Hippocampus, and Ventral Medial Prefrontal Cortex Volumes Differ in Maltreated Youth with and without Chronic Posttraumatic Stress Disorder. Neuropsychopharmacology 41:791-801
Urger, Sacide E; De Bellis, Michael D; Hooper, Stephen R et al. (2015) The superior longitudinal fasciculus in typically developing children and adolescents: diffusion tensor imaging and neuropsychological correlates. J Child Neurol 30:9-20
De Bellis, Michael D; Hooper, Stephen R; Chen, Steven D et al. (2015) Posterior structural brain volumes differ in maltreated youth with and without chronic posttraumatic stress disorder. Dev Psychopathol 27:1555-76
Hooper, Stephen R; Woolley, Donald; De Bellis, Michael D (2014) Intellectual, neurocognitive, and academic achievement in abstinent adolescents with cannabis use disorder. Psychopharmacology (Berl) 231:1467-77
Crozier, Joseph C; Wang, Lihong; Huettel, Scott A et al. (2014) Neural correlates of cognitive and affective processing in maltreated youth with posttraumatic stress symptoms: does gender matter? Dev Psychopathol 26:491-513
Marcus Jenkins, Jade V; Woolley, Donald P; Hooper, Stephen R et al. (2013) Direct and Indirect Effects of Brain Volume, Socioeconomic Status and Family Stress on Child IQ. J Child Adolesc Behav 1:
De Bellis, Michael D; Wang, Lihong; Bergman, Sara R et al. (2013) Neural mechanisms of risky decision-making and reward response in adolescent onset cannabis use disorder. Drug Alcohol Depend 133:134-45
Urger, Efsun; Debellis, Michael D; Hooper, Steven R et al. (2013) Influence of analysis technique on measurement of diffusion tensor imaging parameters. AJR Am J Roentgenol 200:W510-7

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