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Surani Z, Turesky TK, Sullivan E, Shama T, Haque R, Islam N, Kakon SH, Yu X, Petri WA, Nelson C, Gaab N. Examining the relationship between psychosocial adversity and inhibitory control: an fMRI study of children growing up in extreme poverty. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.05.578942. [PMID: 38370839 PMCID: PMC10871278 DOI: 10.1101/2024.02.05.578942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Exposure to psychosocial adversity (PA) is associated with poor behavioral, physical, and mental health outcomes in adulthood. Growing evidence suggests that deficits in executive functions may in part moderate these outcomes, with inhibitory control as an example of such a putative moderator. However, much of the literature examining the development of inhibitory control has been based on children in higher resource environments, and little is known how growing up in a low resource setting might exacerbate the link between inhibitory control and health outcomes. In this context we collected fMRI data during a Go/No-Go inhibitory control task and PA variables for 68 children 5 to 7 years of age living in Dhaka, Bangladesh, an area with a high prevalence of PA. The children's mothers completed behavioral questionnaires to assess the child's PA and their own PA. Whole-brain activation underlying inhibitory control was examined using the No-Go versus Go contrast, and associations with PA variables were assessed using whole-brain regressions. Childhood neglect was associated with weaker activation in the right posterior cingulate, whereas greater family conflict, economic stress, and maternal PA factors were associated with greater activation in the left medial frontal gyrus, right superior and middle frontal gyrus, and left cingulate gyrus. These data suggest that neural networks supporting inhibitory control processes may vary as a function of exposure to different types of PA, particularly between those related to threat and deprivation. Furthermore, increased activation in children with greater PA may serve as a compensatory mechanism, allowing them to maintain similar behavioral task performance.
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Tan B, Shishegar R, Fornito A, Poudel G, Georgiou-Karistianis N. Longitudinal mapping of cortical surface changes in Huntington's Disease. Brain Imaging Behav 2022; 16:1381-1391. [PMID: 35029800 DOI: 10.1007/s11682-021-00625-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/18/2021] [Indexed: 11/30/2022]
Abstract
This paper investigated cortical folding in Huntington's disease to understand how disease progression impacts the surface of the cortex. Cortical morphometry changes in eight gyral based regions of interest (i.e. the left and right hemispheres of the lateral occipital, precentral, superior frontal and rostral middle gyri) were examined. We used existing neuroimaging data from IMAGE-HD, comprising 26 pre-symptomatic, 26 symptomatic and 24 healthy control individuals at three separate time points (baseline, 18-month, 30-month). Local gyrification index and cortical thickness were derived as the measures of cortical morphometry using FreeSurfer 6.0's longitudinal pipeline. The gyral based regions of interest were identified using the Desikan-Killiany Atlas. A Group by Time repeated measures ANCOVA was conducted for each region of interest. We found significantly lower LGI at a group level in the right hemisphere lateral occipital region and both hemispheres of the precentral region; as well as significantly reduced cortical thickness at a group level in both hemispheres of the lateral occipital and precentral regions and the right hemisphere of the superior frontal region. We also found a Group by Time interaction for Local gyrification index in the right hemisphere lateral occipital region. This change was largely driven by a significant decrease in the symptomatic group between baseline and 18-months. Additionally, lower local gyrification index and cortical thickness were associated with higher disease burden score. These findings demonstrate that significant longitudinal decline in right hemisphere local gyrification index is evident during manifest disease in lateral occipital cortex and that these changes are more profound in individuals with greater disease burden score.
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Affiliation(s)
- Brendan Tan
- School of Psychological Sciences, The Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, 3800, Australia
| | - Rosita Shishegar
- School of Psychological Sciences, The Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, 3800, Australia.,The Australian e-Health Research Centre, CSIRO, Melbourne, Australia.,Monash Biomedical Imaging, 770 Blackburn Road, 3800, Melbourne, Victoria, Australia
| | - Alex Fornito
- School of Psychological Sciences, The Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, 3800, Australia.,Monash Biomedical Imaging, 770 Blackburn Road, 3800, Melbourne, Victoria, Australia
| | - Govinda Poudel
- School of Psychological Sciences, The Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, 3800, Australia.,Sydney Imaging, Brain and Mind Centre, The University of Sydney, Sydney, New South Wales, 2050, Australia.,The Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, Victoria, 3000, Australia
| | - Nellie Georgiou-Karistianis
- School of Psychological Sciences, The Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, 3800, Australia. .,Medicine, Nursing and Health Sciences, Monash University, Clayton Campus, Melbourne, Victoria, 3800, Australia.
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Abeyasinghe PM, Long JD, Razi A, Pustina D, Paulsen JS, Tabrizi SJ, Poudel GR, Georgiou-Karistianis N. Tracking Huntington's Disease Progression Using Motor, Functional, Cognitive, and Imaging Markers. Mov Disord 2021; 36:2282-2292. [PMID: 34014005 DOI: 10.1002/mds.28650] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 04/25/2021] [Accepted: 04/27/2021] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Potential therapeutic targets and clinical trials for Huntington's disease have grown immensely in the last decade. However, to improve clinical trial outcomes, there is a need to better characterize profiles of signs and symptoms across different epochs of the disease to improve selection of participants. OBJECTIVE The objective of the present study was to best distinguish longitudinal trajectories across different Huntington's disease progression groups. METHODS Clinical and morphometric imaging data from 1082 participants across IMAGE-HD, TRACK-HD, and PREDICT-HD studies were combined, with longitudinal times ranging between 1 and 10 years. Participants were classified into 4 groups using CAG and age product. Using multivariate linear mixed modeling, 63 combinations of markers were tested for their sensitivity in differentiating CAG and age product groups. Next, multivariate linear mixed modeling was applied to define the best combination of markers to track progression across individual CAG and age product groups. RESULTS Putamen and caudate volumes, individually and/or combined, were identified as the best variables to both differentiate CAG and age product groups and track progression within them. The model using only caudate volume best described advanced disease progression in the combined data set. Contrary to expectations, combining clinical markers and volumetric measures did not improve tracking longitudinal progression. CONCLUSIONS Monitoring volumetric changes throughout a trial (alongside primary and secondary clinical end points) may provide a more comprehensive understanding of improvements in functional outcomes and help to improve the design of clinical trials. Alternatively, our results suggest that imaging deserves consideration as an end point in clinical trials because of the prospect of greater sensitivity. © 2021 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Pubu M Abeyasinghe
- School of Psychological Sciences and Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
| | - Jeffrey D Long
- Department of Psychiatry, Carver Collage of Medicine, The University of Iowa, Iowa City, Iowa, USA.,Department of Biostatistics, College of Public Health, The University of Iowa, Iowa City, Iowa, USA
| | - Adeel Razi
- School of Psychological Sciences and Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia.,Monash Biomedical Imaging, Monash University, Clayton, Victoria, Australia.,Wellcome Centre for Human Neuroimaging, UCL, London, United Kingdom
| | - Dorian Pustina
- CHDI Management/CHDI Foundation, Princeton, New Jersey, USA
| | - Jane S Paulsen
- Department of Neurology, University of Wisconsin, Madison, Wisconsin, USA
| | - Sarah J Tabrizi
- UCL Department of Neurodegenerative Disease and Huntington's Disease Centre, UCL Queen Square Institute of Neurology, Dementia Research Institute at UCL, London, United Kingdom
| | - Govinda R Poudel
- Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, Victoria, Australia
| | - Nellie Georgiou-Karistianis
- School of Psychological Sciences and Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
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