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Rodriguez N, Tessier CA, Mandhane PJ, Pei J, Simons E, Moraes TJ, Turvey SE, Subbarao P, Kozyrskyj AL. Sex-specific associations among infant food and atopic sensitizations and infant neurodevelopment. Front Pediatr 2022; 10:734428. [PMID: 36389362 PMCID: PMC9648178 DOI: 10.3389/fped.2022.734428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 08/02/2022] [Indexed: 11/29/2022] Open
Abstract
INTRODUCTION Food sensitization is a first and strong indicator of immune deviation in the progression to other allergic conditions. Sensitization to food or other allergens and related inflammation during critical windows of infant development may adversely affect neurodevelopmental milestones. However, additional research is needed to test this association further. METHODS Associations between atopic (any food or aeroallergen) or food sensitization (specific to egg, soybean, peanut, and milk) at age 1 year and neurodevelopment up to 2 years of age were evaluated in the national CHILD Cohort Study, with a secondary aim examining whether these associations were sex-specific. Food and atopic sensitization were assessed by skin prick tests (SPT) in 1-year-old infants, with neurodevelopment assessed using the cognitive, language, motor, and social-emotional subscales of the Bayley Scales of Infant Development (BSID-III) administered at 1 and 2 years of age. RESULTS Atopic sensitization was present among 16.4% of infants, while 13.4% had food sensitizations. Only socioemotional scores reached statistical significance among the four BSID-III domains. Both atopic and food sensitization at 1 year of age was associated with lower social-emotional scores, independent of the infant's ethnicity. These findings were sex-specific and only observed among boys, among whom social-emotional scores were lowered by 5 points if atopic sensitization was present (-5.22 [95% CI: -9.96, -0.47], p = 0.03) or if food sensitization was present (-4.85 [95% CI: -9.82,0.11], p = 0.06). Similar results were observed using the standard SPT cut-off of ≥3 mm - for atopic sensitization (-5.17 [95% CI: -11.14, -0.80], p = 0.09) and for food sensitization (-4.61 [95% CI: -10.96, 1.74], p = 0.15). CONCLUSION In our study of term infants, we found an inverse, cross-sectional association between atopic and food sensitization status and social-emotional development scores in male children but not female children.
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Tamana SK, Tun HM, Konya T, Chari RS, Field CJ, Guttman DS, Becker AB, Moraes TJ, Turvey SE, Subbarao P, Sears MR, Pei J, Scott JA, Mandhane PJ, Kozyrskyj AL. Bacteroides-dominant gut microbiome of late infancy is associated with enhanced neurodevelopment. Gut Microbes 2021; 13:1-17. [PMID: 34132157 PMCID: PMC8210878 DOI: 10.1080/19490976.2021.1930875] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Dysbiosis of gut microbiota has been retrospectively linked to autism spectrum disorders but the temporal association between gut microbiota and early neurodevelopment in healthy infants is largely unknown. We undertook this study to determine associations between gut microbiota at two critical periods during infancy and neurodevelopment in a general population birth cohort.Here, we analyzed data from 405 infants (199 females) from the CHILD (Canadian Healthy Infant Longitudinal Development) Cohort Study. Neurodevelopmental outcomes were objectively assessed using the Bayley Scale of Infant Development (BSID-III) at 1 and 2 years of age. Microbiota profiling with 16S rRNA gene sequencing was conducted on fecal samples obtained at a mean age of 4 and 12 months.Using clustering methods, we identified three groups of infants based on relative abundance of gut microbiota at 12 months: Proteobacteria-dominant cluster (22.4% higher abundance at 12 months), Firmicutes-dominant cluster (46.0% higher abundance at 12 months) and Bacteroidetes-dominant cluster (31.6% higher abundance at 12 months). Relative to the Proteobacteria-dominant cluster, the Bacteroidetes-dominant cluster was associated with higher scores for cognitive (4.8 points; FDRp = .02), language (4.2 points; FDRp≤0.001), and motor (3.1 points; FDRp = .03) development at age 2 in models adjusted for covariates. When stratified by sex, only male infants with a Bacteroidetes-dominant microbiota had more favorable cognitive (5.9 points, FDRp = .06) and language (7.9 points; FDRp≤0.001) development. Genus Bacteroides abundance in gut microbiota was positively correlated with cognitive and language scores at age 2. Fully adjusted linear mixed model analysis revealed a positive association between Bacteroidetes-dominant cluster and change in cognitive and language performance from 1 to 2 years, predominantly among males. No associations were evident between 4-month microbiota clusters and BSID-II scores. Noteworthy is that enhanced sphingolipid synthesis and metabolism, and antagonism or competition between Bacteroides and Streptococcus were characteristic of a Bacteroidetes-dominant gut microbiota.This study found strong evidence of positive associations between Bacteroidetes gut microbiota in late infancy and subsequent neurodevelopment, most prominently among males but not females.
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Flannigan K, Wrath A, Ritter C, McLachlan K, Harding KD, Campbell A, Reid D, Pei J. Balancing the story of fetal alcohol spectrum disorder: A narrative review of the literature on strengths. Alcohol Clin Exp Res 2021; 45:2448-2464. [PMID: 34716704 PMCID: PMC9299043 DOI: 10.1111/acer.14733] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 09/27/2021] [Accepted: 10/21/2021] [Indexed: 11/29/2022]
Abstract
For many years, researchers have explored the complex challenges experienced by individuals with fetal alcohol spectrum disorder (FASD). This research has been important for documenting the brain‐ and body‐based impacts of prenatal alcohol exposure and the psychosocial vulnerabilities and environmental adversities frequently associated with FASD. It has also supported advocacy efforts and highlighted the necessity of providing FASD services and supports. However, with the focus on deficits and needs, there is a considerable gap in the literature on the strengths and successes of individuals with FASD. The lack of strengths‐based FASD research has likely perpetuated the stress and stigma experienced by individuals with FASD and their families. Thus, there is a critical need to shift the direction of the field. Here we provide a narrative review of the literature on strengths in FASD. Our goals are to: (1) understand the state of strengths‐based research related to individuals with FASD across the lifespan, and (2) describe positive characteristics, talents, and abilities of individuals with FASD that may be cultivated to promote their fulfillment and well‐being. We identified a total of 19 studies, most of which were conducted to explore the lived experiences of adults with FASD. This preliminary but critical body of evidence highlights the intrinsic strengths of individuals with FASD, including strong self‐awareness, receptiveness to support, capacity for human connection, perseverance through challenges, and hope for the future. Despite the importance of this emerging evidence, appraisal of the literature indicates a need for more intentional, methodologically rigorous, participatory, and theory‐driven research in this area. Findings from this study, including the identified gaps in the literature, can be used to inform research, practice, and policy to meaningfully advance the field of FASD and promote positive outcomes in this population.
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Abstract
Mindset theory is an achievement motivation theory that centers on the concept of the malleability of abilities. According to mindset theory, students tend to have either a growth mindset or a fixed mindset about their intelligence; students with a growth mindset tend to believe that intelligence is malleable, whereas students with fixed mindsets tend to believe that intelligence is unchangeable. As described in many empirical and theoretical papers, the mindset a student holds can influence important psychological and behavioral factors, including reaction to failure, persistence and level of effort, and expectations of success, which ultimately impact academic achievement. Importantly, mindsets can be changed, and interventions have been developed to promote a more growth mindset. A growth mindset allows students to view challenges as an opportunity for improvement, is linked to enjoyment of learning, and increases motivation in school. School psychologists are often working with students with learning differences and/or mental health concerns who are particularly at-risk for poor academic achievement, and researchers have demonstrated the important impact a growth mindset can have for these vulnerable students. School psychologists are well-positioned to incorporate mindset theory into the school environment in order to best support the students they serve. In this paper we provide a theoretical overview of mindset theory and mindset interventions, and specifically review the literature on mindset theory for individuals with learning disabilities and mental health challenges. We discuss how school psychologists can incorporate mindset theory into their practice to support the shift from a fixed to a growth mindset for all students.
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Kully-Martens K, Pei J, McNeil A, Rasmussen C. Resilience Resources and Emotional and Behavioral Functioning Among Youth and Young Adults with Fetal Alcohol Spectrum Disorder. Int J Ment Health Addict 2021. [DOI: 10.1007/s11469-021-00652-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Tremblay M, Kingsley B, Gokiert R, Blums T, Mottershead K, Pei J. Using Photovoice to Explore Teen Parents’ Perspectives on Raising Healthy Children. JOURNAL OF ADOLESCENT RESEARCH 2021. [DOI: 10.1177/07435584211034871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Given the unique challenges and strengths of teen parents, specialized supports are needed to help teen families reach their full potential. This study explored, from the perspectives of teen parents involved in a supportive housing program, what helps teen parents raise their children in healthy ways. Aligned with a community-based participatory research approach, we used the photovoice method. Two 6-month rounds of photovoice were conducted, during which teen parents met with the researchers on a biweekly basis for group discussions and engaged in innovative knowledge mobilization. Resulting categories, in response to the question of what helps teen parents raise their children in healthy ways, consist of (a) supports and services; (b) safe, secure, and affordable housing; and (c) community. Ultimately, teen families have both complex needs and strengths that require relationship-based, trauma-informed, structured supports delivered by nonjudgmental staff who respect their independence, supportive landlords, and communities where they can feel safe to raise their children without stigma and judgment. Importantly, findings emphasize the need for supportive and responsive structures, policies, and housing programs to be in place for teen families rather than focusing exclusively on preventing teen pregnancy. Specific recommendations are provided with direct relevance for research and practice.
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Virani S, Rasmussen C, Zivanovic N, Smithson L, Pei J, Andersen J, Yager JY, Kirton A, Brooks BL. Learning and memory profiles in youth with perinatal stroke: a study of the Child and Adolescent Memory Profile (ChAMP). Child Neuropsychol 2021; 28:99-106. [PMID: 34375160 DOI: 10.1080/09297049.2021.1957089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
There is limited understanding of the effect of perinatal stroke on child and adolescent learning and memory abilities. This study sought to evaluate the clinical utility of the Child and Adolescent Memory Profile (ChAMP) in quantifying memory performance in youth with perinatal stroke. Children and adolescents aged 6-16 years old with a history of perinatal stroke (PS; n = 41) completed two subtests from the ChAMP (Lists and Objects). Age, sex, and ethnicity-matched healthy control (HC) data were obtained from the test publisher's standardization data set. Participants with a history of PS performed significantly worse (p < .05) with medium effect size (ƞp2 ≥ .06) than HC on the ChAMP Screening Index and on all ChAMP Lists and Objects scaled scores. Classification accuracy for the ChAMP scores ranged from 57% to 68% with the area under the curve ranging from .62-.75. No significant group differences on ChAMP performance (p > .05) were found for stroke side (left versus right-sided) or for seizure history (present versus absent). This study supports the utility of the ChAMP in perinatal stroke patients by demonstrating significantly worse performance in verbal and visual memory than HC. Classification accuracy is limited, but supportive for the Screening Index and Objects Delayed scores. The ChAMP may be a useful tool for evaluating cognition in this population when taken alongside the context of other tests, background history, and clinical observations.
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Gardiner E, Hutchison SM, McLachlan K, Rasmussen C, Pei J, Mâsse LC, Oberlander TF, Reynolds JN. Behavior regulation skills are associated with adaptive functioning in children and adolescents with prenatal alcohol exposure. APPLIED NEUROPSYCHOLOGY-CHILD 2021; 11:691-701. [PMID: 34155949 DOI: 10.1080/21622965.2021.1936528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Children with prenatal alcohol exposure (PAE) experience a range of adverse outcomes that impact multiple domains of functioning, including cognitive, physical, mental health, behavioral, social-emotional, communication, and learning. To inform tailored clinical intervention, the current study examined the relation between caregiver-reported cognitive skills (executive function; EF) and adaptive functioning. The study conducted a secondary analyses of data provided by caregivers of 87 children and adolescents (aged 5-18 years, M = 11.7; 52% male) with confirmed PAE, including a subset (n = 70) with Fetal Alcohol Spectrum Disorder (FASD), who reported on their child's EF (Behavior Rating Inventory of Executive Function) and adaptive function (Adaptive Behavior Assessment System, 2nd Edition) skills. Findings from the current study showed that caregivers reported significantly poorer EF and adaptive functioning skills for children with PAE as compared to normative samples. Poorer behavior regulation skills were associated with all aspects of adaptive functioning (i.e., practical, conceptual, and social skills). Specifically, shifting skills emerged as the best predictor of adaptive functioning among children with PAE. These results highlight the possibility that targeting particular EF domains among individuals with PAE may benefit behavior regulation, which may also extend to adaptive skills. This highlights the need to develop EF interventions for children and adolescents who have been prenatally exposed to alcohol.
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Lebel CA, Gibbard WB, Tortorelli C, Pei J, Beaulieu C, Bagshawe M, McMorris CA. Prenatal Exposure And Child brain and mental Health (PEACH) study: protocol for a cohort study of children and youth with prenatal alcohol exposure. BMJ Open 2021; 11:e051660. [PMID: 33980537 PMCID: PMC8118071 DOI: 10.1136/bmjopen-2021-051660] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
INTRODUCTION Fetal alcohol spectrum disorder (FASD), which is caused by prenatal alcohol exposure (PAE), affects an estimated 4% of North Americans, and is the most common preventable cause of intellectual disability. Mental health problems, including anxiety and depression, are experienced by nearly all individuals with FASD. However, there is very limited knowledge about effective mental health treatments for individuals with FASD; effective treatments are hindered in part due to a lack of understanding of the basic neurobiology underlying internalising disorders in youth with FASD. METHODS AND ANALYSIS The Prenatal Exposure And Child brain and mental Health (PEACH) study includes children aged 7-18 years. We will use longitudinal neuroimaging (anatomical T1-weighted, diffusion and passive viewing function MRI) and mental health assessments (Behaviour Assessment Scale for Children, Multi-dimensional Anxiety Scale for Children, Children's Depression Inventory (CDI-2), Kiddie Scale of Affective Disorders) to: (1) characterise brain development trajectories in youth with FASD, (2) determine whether brain alterations mediate increased anxiety and depression in youth with FASD and (3) identify baseline brain features that predict changes of anxiety and depression symptoms over the next 2 years. All of this will be done while considering sex and adverse postnatal experiences, which can significantly impact mental health and brain outcomes. This project will forge new understanding of FASD and mental health from a neurobiological perspective, highlighting key time periods (ie, sensitive windows) and brain regions (ie, that may be susceptible to neurostimulation), while identifying factors that predict individual trajectories of anxiety and depression symptoms. ETHICS AND DISSEMINATION This study was approved by the University of Calgary Conjoint Health Research Ethics Board and the University of Alberta Health Research Ethics Board. Study results will be disseminated in peer-reviewed journals, at relevant conferences and in conjunction with our knowledge mobilisation partners.
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van Eeden C, Tamana SK, Narang I, Hammam N, Chikuma J, Lefebvre DL, Azad MB, Moraes TJ, Subbarao P, Becker AB, Turvey SE, Sears MR, Rasmussen C, Pei J, Mandhane PJ. Development and Validation of SDBeasy Score as a Predictor of Behavioral Outcomes in Childhood. Am J Respir Crit Care Med 2021; 203:718-725. [PMID: 32898424 DOI: 10.1164/rccm.202002-0363oc] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Rationale: There are limited tools to identify which children are at greatest risk for developing sleep-disordered breathing (SDB)-associated behavioral morbidity.Objectives: To examine associations between age of onset and duration of parent-reported symptoms of SDB and behavioral problems at the age of 5 years.Methods: Data were collected and analyses were completed for participants in the CHILD (Canadian Healthy Infant Longitudinal Development) cohort at the Edmonton and Toronto sites. We generated an SDBeasy score on the basis of the age of onset and duration of SDB symptoms as reported by parents completing the Pediatric Sleep Questionnaire. Using CHILD-Edmonton data, we completed multivariate linear regression to determine whether the SDBeasy score was associated with behavioral problems at the age 5 years of age as assessed by using the Child Behavior Checklist (CBCL). We then validated the SDBeasy score using CHILD-Toronto data.Measurements and Main Results: At the 5-year visit, 581 of 716 (81%) CHILD-Edmonton participants still enrolled had CBCL data. Of the 581 children with data, 77% (446 of 581) had an SDBeasy score of 0 (never had SDB symptoms), whereas 20 of 581 children (3.4%) had persistent SDB symptoms from infancy through 5 years of age (SDBeasy score of 24). Children had a 0.35-point-higher CBCL total behavioral score at 5 years for each 1-point increase in their SDBeasy score (95% confidence interval, 0.24-0. 5; P < 0.01). We found consistent results among CHILD-Toronto participants; children had a 0.26-point-higher CBCL total behavioral score at 5 years for each 1-point increase in their SDBeasy score (95% confidence interval, 0.08-0.44; P = 0.005).Conclusions: The SDBeasy score, based on the Pediatric Sleep Questionnaire, enables identification of children with higher behavioral-problem scores.
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Cai SY, Pei J, Yan B, Liu ZY, Chen Y, Sima CY, Su CJ, Yang ZH. [Effects of normobaric hyperoxia intervention on renal ischemia-reperfusion injury in rats]. ZHONGHUA YI XUE ZA ZHI 2021; 101:1036-1040. [PMID: 33845544 DOI: 10.3760/cma.j.cn112137-20201011-02809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effects of normobaric hyperoxia intervention on renal ischemia-reperfusion injury in rats and its possible mechanism. Methods: Twenty-one adult male SD rats were enrolled and their right kidneys were excised. After two weeks, they were randomly assigned to 3 groups, with 7 rats in each group, namely sham-operated group (Group S), ischemia-reperfusion group (Group I/R), and normobaric hyperoxia+ischemia-reperfusion group (Group NBHO+I/R). In group S, only the left renal pedicle was isolated, but no ischemic treatment was performed. However, in group I/R and group NBHO+I/R, left renal pedicles were separated and left renal ischemia was induced by noninvasive arterial clamp for 45 min, and after 24 h of reperfusion, rats in group S and group I/R inhaled regular concentration of oxygen (21%), while rats in group NBHO+I/R inhaled high concentration of oxygen (60%), 2 h at each time, once a day for 7 days. On the 7th day after surgery, blood urea nitrogen (BUN) and creatinine (Cr) levels were measured by taking blood from the orbital veins of rats. The content of malondialdehyde (MDA) and superoxide dismutase (SOD) was detected from the left kidney tissues. The mRNA and protein contents of Keap1 and Nrf2 gene in kidney tissues were determined by qPCR and Western Blotting, respectively. Hematoxylin-eosin staining (HE) was employed to observe the pathological changes of kidney tissue. Immunohistochemical staining was used to measure the protein expression of Keap1 and Nrf2 in kidney tissues. Results: Compared with group S, the serum BUN [(10.7±1.7) mmol/L, (8.4±1.0) mmol/L vs (6.1±1.3) mmol/L, both P<0.05] and Cr [(81.0±3.7) μmol/L, (62.9±3.4) μmol/L vs (48.3±2.9) μmol/L, both P<0.05] levels of rats in the group I/R and group NBHO+I/R increased, and the I/R group had the most significant increase. Compared with group S, the MDA content of kidney tissue in the rats of group I/R and NBHO+I/R increased [(10.5±1.0) μmol/L, (8.6±0.8) μmol/L vs (6.5±0.5) μmol/L, both P<0.05], but the MDA content in group NBHO+I/R was lower than that of group I/R (P<0.05). Compared with group S, the SOD content in the kidney tissues of rats in both group I/R and group NBHO+I/R decreased. However, the SOD content of group NBHO+I/R was higher than that of group I/R (P<0.05). Compared with group S, the mRNA and protein contents of Keap1 gene in kidney tissues of group I/R and group NBHO+I/R decreased, and group NBHO+I/R had the most significant decrease (P<0.05). However, compared with group S, mRNA and protein expressions of Nrf2 gene increased in kidney tissues of group I/R and group NBHO+I/R, and NBHO+I/R group had the most significant increase (P<0.05). Postoperative pathological results suggested that compared with group S, the pathological damage of kidney tissues in group I/R and group NBHO+I/R increased, but the degree of damage in group NBHO+I/R was lower than that in group I/R. Conclusion: Normobaric hyperoxia intervention may have protective effects on renal ischemia-reperfusion injury in rats by activating Keap1-Nrf2 signaling pathway.
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Pei J, Schuldt M, Nagyova E, Gu Z, El Bouhaddani S, Yiangou L, Jansen M, Calis JJA, Dorsch LM, Blok CS, van den Dungen NAM, Lansu N, Boukens BJ, Efimov IR, Michels M, Verhaar MC, de Weger R, Vink A, van Steenbeek FG, Baas AF, Davis RP, Uh HW, Kuster DWD, Cheng C, Mokry M, van der Velden J, Asselbergs FW, Harakalova M. Multi-omics integration identifies key upstream regulators of pathomechanisms in hypertrophic cardiomyopathy due to truncating MYBPC3 mutations. Clin Epigenetics 2021; 13:61. [PMID: 33757590 PMCID: PMC7989210 DOI: 10.1186/s13148-021-01043-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 02/28/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Hypertrophic cardiomyopathy (HCM) is the most common genetic disease of the cardiac muscle, frequently caused by mutations in MYBPC3. However, little is known about the upstream pathways and key regulators causing the disease. Therefore, we employed a multi-omics approach to study the pathomechanisms underlying HCM comparing patient hearts harboring MYBPC3 mutations to control hearts. RESULTS Using H3K27ac ChIP-seq and RNA-seq we obtained 9310 differentially acetylated regions and 2033 differentially expressed genes, respectively, between 13 HCM and 10 control hearts. We obtained 441 differentially expressed proteins between 11 HCM and 8 control hearts using proteomics. By integrating multi-omics datasets, we identified a set of DNA regions and genes that differentiate HCM from control hearts and 53 protein-coding genes as the major contributors. This comprehensive analysis consistently points toward altered extracellular matrix formation, muscle contraction, and metabolism. Therefore, we studied enriched transcription factor (TF) binding motifs and identified 9 motif-encoded TFs, including KLF15, ETV4, AR, CLOCK, ETS2, GATA5, MEIS1, RXRA, and ZFX. Selected candidates were examined in stem cell-derived cardiomyocytes with and without mutated MYBPC3. Furthermore, we observed an abundance of acetylation signals and transcripts derived from cardiomyocytes compared to non-myocyte populations. CONCLUSIONS By integrating histone acetylome, transcriptome, and proteome profiles, we identified major effector genes and protein networks that drive the pathological changes in HCM with mutated MYBPC3. Our work identifies 38 highly affected protein-coding genes as potential plasma HCM biomarkers and 9 TFs as potential upstream regulators of these pathomechanisms that may serve as possible therapeutic targets.
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Pei J, Poth C, Tremblay M, Walker M. An Integrative Systems Approach to Enhancing Service Delivery for Individuals with Complex Needs. CURRENT DEVELOPMENTAL DISORDERS REPORTS 2021. [DOI: 10.1007/s40474-021-00223-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
Purpose of Review
There are a lack of system-wide integrative services for individuals with complex needs and a corresponding demand for advancing cross-disciplinary practices in community settings. This demand is especially acute for individuals with fetal alcohol spectrum disorder (FASD) and a gap we have sought to address.
Recent Findings
We present findings from a literature scan to guide service delivery for individuals and families affected by FASD and other complex needs: four overarching guiding principles for policy decision-makers, seven guiding practices for organizations, and 23 guiding practices for service providers.
Summary
These identified principles and practices bridge diverse perspectives, with potential for their implementation to provide consistent, evidence-based services to underserved populations with complex needs.
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Flannigan K, Kapasi A, Pei J, Murdoch I, Andrew G, Rasmussen C. Characterizing adverse childhood experiences among children and adolescents with prenatal alcohol exposure and Fetal Alcohol Spectrum Disorder. CHILD ABUSE & NEGLECT 2021; 112:104888. [PMID: 33388606 DOI: 10.1016/j.chiabu.2020.104888] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/28/2020] [Accepted: 12/09/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND Individuals with Fetal Alcohol Spectrum Disorder (FASD) and prenatal alcohol exposure (PAE) face elevated rates of postnatal environmental adversity across the lifespan. OBJECTIVE We explored early adversity among children and adolescents with PAE. PARTICIPANTS AND SETTING Our sample included 333 children and adolescents with PAE assessed at a Canadian FASD diagnostic clinic, 66% of whom were diagnosed with FASD. METHODS Data were collected retrospectively via record review, and adversity was measured using the Adverse Childhood Experiences Questionnaire (ACE-Q). RESULTS Participants experienced high levels of adversity (mean ACE score of 3.4), which increased with age, mental health comorbidity, and number of living placements. Common ACEs included: not being raised by both biological parents (97.3%), caregiver disruption (88.5%), and exposure to household substance use (69.7%). Females had significantly higher rates of sexual abuse than males (p < .001, ø = -0.18). There was no difference in total ACE scores between participants diagnosed with FASD versus those not diagnosed, but participants with FASD were less likely to live with both biological parents (p < .001, ø = .19) or to have been exposed to household mental health problems (p = .007, ø = -0.15). CONCLUSIONS Children and adolescents with PAE experience high rates of early adversity. Practice and policy initiatives are needed to improve early detection of ACEs among children with PAE, and of PAE among children with ACEs. Targeted supports are needed to strengthen the early caregiving environment and mitigate the risks of adversity to support healthy outcomes for individuals with PAE and FASD.
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Flannigan K, Coons-Harding KD, Anderson T, Wolfson L, Campbell A, Mela M, Pei J. A Systematic Review of Interventions to Improve Mental Health and Substance Use Outcomes for Individuals with Prenatal Alcohol Exposure and Fetal Alcohol Spectrum Disorder. Alcohol Clin Exp Res 2020; 44:2401-2430. [PMID: 33119894 PMCID: PMC7839542 DOI: 10.1111/acer.14490] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 10/18/2020] [Indexed: 12/25/2022]
Abstract
Individuals with fetal alcohol spectrum disorder (FASD) experience remarkably high rates of mental health and substance use challenges, beginning early in life and extending throughout adulthood. Proactive intervention can help to mitigate some of these negative experiences. Although the literature on FASD intervention is growing, there is currently a lack of consolidated evidence on interventions that may improve mental health and substance use outcomes in this population. Informed by a life course perspective, we undertook a systematic review of the literature to identify interventions that improve mental wellness through all developmental stages for people with prenatal alcohol exposure (PAE) and FASD. A total of 33 articles were identified, most of which were focused on building skills or strategies that underlie the well‐being of children with PAE and FASD and their families. Other interventions were geared toward supporting child and family wellness and responding to risk or reducing harm. There was a notable lack of interventions that directly targeted mental health and substance use challenges, and a major gap was also noted in terms of interventions for adolescents and adults. Combined, these studies provide preliminary and emerging evidence for a range of intervention approaches that may support positive outcomes for individuals with FASD across the life course.
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Tremblay M, Gokiert R, Kingsley B, Mottershead K, Pei J. Using developmental evaluation and community-based participatory research to develop a model of supportive housing. EVALUATION AND PROGRAM PLANNING 2020; 82:101849. [PMID: 32679353 DOI: 10.1016/j.evalprogplan.2020.101849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 03/16/2020] [Accepted: 07/05/2020] [Indexed: 06/11/2023]
Abstract
Community-based participatory research (CBPR) and developmental evaluation (DE) have emerged over recent decades as separate approaches for addressing complex social issues. Current literature offers little with respect to the use of CBPR and DE in combination, although the two approaches are complementary. Through the current paper, we outline how CBPR and DE were used to develop a model of supportive housing for teen families. More specifically, we describe the structures and processes that contributed to this development, including (1) our partnership approach, (2) pooled resources, (3) regular opportunities for collaboration and reflection, (4) integration of multiple data sources, (5) ongoing feedback and knowledge dissemination, and (6) adjustments to program practices. We end by providing insights into the lessons that we learned through this project. Through this paper, we describe how researchers and community partners can collaboratively use CBPR and DE to develop a program model in complex community settings. Insights are offered that will be important for researchers, evaluators, and practitioners seeking to develop programming in response to complex community issues.
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Kapasi A, Pei J, Kryska K, Joly V, Gill K, Thompson-Hodgetts S, McLachlan K, Andrew G, Rasmussen C. Exploring Self-Regulation Strategy Use in Adolescents with FASD. JOURNAL OF OCCUPATIONAL THERAPY, SCHOOLS, & EARLY INTERVENTION 2020. [DOI: 10.1080/19411243.2020.1822260] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Pei J, Juniper G, van den Berg NS, Nisho N, Broadt T, Welch AR, Yi GS, Raymundo RC, Chirita SU, Lu G, Krishnan G, Lee YJ, Kapoor S, Zhou Q, Colevas AD, Lui NS, Poultsides GA, Li G, Zinn KR, Rosenthal EL. Safety and Stability of Antibody-Dye Conjugate in Optical Molecular Imaging. Mol Imaging Biol 2020; 23:109-116. [PMID: 32880818 DOI: 10.1007/s11307-020-01536-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 08/03/2020] [Accepted: 08/20/2020] [Indexed: 01/06/2023]
Abstract
PURPOSE The development of molecularly targeted tracers is likely to improve the accuracy of diagnostic, screening, and therapeutic tools. Despite the many therapeutic antibodies that are FDA-approved with known toxicity, only a limited number of antibody-dye conjugates have been introduced to the clinic. Thorough evaluation of the safety, stability, and pharmacokinetics of antibody conjugates in the clinical setting compared with their parental components could accelerate the clinical approval of antibodies as agents for molecular imaging. Here we investigate the safety and stability of a near-infrared fluorescent dye (IRDye800CW) conjugated panitumumab, an approved therapeutic antibody, and report on the product stability, pharmacokinetics, adverse events, and QTc interval changes in patients. PROCEDURES Panitumumab-IRDye800CW was made under good manufacturing practice (GMP) conditions in a single batch on March 26, 2014, and then evaluated over 4.5 years at 0, 3, and 6 months, and then at 6-month intervals thereafter. We conducted early phase trials in head and neck, lung, pancreas, and brain cancers with panitumumab-IRDye800CW. Eighty-one patients scheduled to undergo standard-of-care surgery were infused with doses between 0.06 to 2.83 mg/kg of antibody. Patient ECGs, blood samples, and adverse events were collected over 30-day post-infusion for analysis. RESULTS Eighty-one patients underwent infusion of the study drug at a range of doses. Six patients (7.4 %) experienced an adverse event that was considered potentially related to the drug. The most common event was a prolonged QTc interval which occurred in three patients (3.7 %). Panitumumab-IRDye800CW had two OOS results at 42 and 54 months while meeting all other stability testing criteria. CONCLUSIONS Panitumumab-IRDye800CW was safe and stable to administer over a 54-month window with a low rate of adverse events (7.4 %) which is consistent with the rate associated with panitumumab alone. This data supports re-purposing therapeutic antibodies as diagnostic imaging agents with limited preclinical toxicology studies.
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Khan MH, Smithson L, Li E, Kirton A, Pei J, Andersen J, Yager JY, Brooks BL, Rasmussen C. Executive behavior and functional abilities in children with perinatal stroke and the associated caregiver impact. Child Neuropsychol 2020; 27:83-95. [PMID: 32718269 DOI: 10.1080/09297049.2020.1796953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Perinatal stroke is the most common form of stroke in childhood and is followed by a variety of outcomes, with many children experiencing specific functional and neuropsychological deficits. The association of these outcomes with the psychosocial impact caregivers face is not well documented. The goal of our pilot study was to examine caregivers' perception of executive behavior and functional abilities among children with perinatal stroke, and how these outcomes impact the caregivers. We administered three questionnaires to primary caregivers of children with perinatal stroke to obtain caregiver-reported measures of (1) executive behavior of their child (Behavior Rating Inventory of Executive Function, Second Edition), (2) the functional abilities of their child (Pediatric Evaluation of Disability Inventory Computer Adaptive Test), and (3) the psychosocial impact experienced by the caregiver themselves (Parental Outcome Measure). Participants included 20 children (mean age = 9.3 years, range = 6-16 years) with perinatal stroke and their primary caregivers. Functional abilities in the children were rated as clinically impaired in the domains of daily activities and mobility. Half of the children exhibited clinically impaired ratings on at least one executive behavior domain, but the mean scores for these domains did not reach clinically impaired levels. Greater ratings of problems in daily activities for the child was associated with greater caregiver guilt (r = -0.55, p = 0.02). Caregivers of children with perinatal stroke who experience limitations in performing daily activities should be more closely monitored for adverse impact and be provided the necessary support and education to alleviate the associated guilt.
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McLachlan K, Zhou D, Little G, Rasmussen C, Pei J, Andrew G, Reynolds JN, Beaulieu C. Current Socioeconomic Status Correlates With Brain Volumes in Healthy Children and Adolescents but Not in Children With Prenatal Alcohol Exposure. Front Hum Neurosci 2020; 14:223. [PMID: 32714166 PMCID: PMC7344164 DOI: 10.3389/fnhum.2020.00223] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 05/19/2020] [Indexed: 11/24/2022] Open
Abstract
Individuals with prenatal alcohol exposure (PAE) exhibit neurological deficits associated with brain injury including smaller brain volumes. Additional risk factors such as lower socioeconomic status (SES) may also have an impact on brain development for this population. This study examined how brain volumes are related to SES in both neurotypically developing children and adolescents, and those with PAE. 3D T1-weighted MPRAGE images were acquired from 69 participants with PAE (13.0 ± 3.2 years, range 7.1–18.8 years, 49% female) and 70 neurotypical controls (12.4 ± 2.9 years, range 7.0–18.5 years, 60% female) from four scanning sites in Canada. SES scores calculated using Hollingshead’s Four-Factor Index of Social Status from current caregiver placement were not significantly different between groups, though more children with PAE had lower SES scores compared to controls. Psychometric data comprised 14 cognitive measures, including executive functioning, attention and working memory, memory, math/numerical ability, and word reading. All cognitive scores were significantly worse in children with PAE compared to controls, though SES was not correlated with cognitive scores in either group after correction for multiple comparisons. All 13 brain volumes were smaller in children with PAE compared to children in the control group. Higher SES was associated with larger hippocampus and amygdala volumes in controls, but there were no such associations in children with PAE. Direct evaluation of the interaction between SES and diagnostic group did not show a significant differential impact of SES on these structures. These findings support previous links between SES and brain volumes in neurotypically developing children, but the lack of such a relationship with SES in children with PAE may be due to the markedly smaller brain volumes resulting from the initial brain injury and postpartum brain development, regardless of later SES.
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Yang C, Ahmad A, Bao P, Guo X, Wu X, Liu J, Chu M, Liang C, Pei J, Long R, Yan P, Wang S, Ding X. Increasing dietary energy level improves growth performance and lipid metabolism through up-regulating lipogenic gene expression in yak (Bos grunniens). Anim Feed Sci Technol 2020. [DOI: 10.1016/j.anifeedsci.2020.114455] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Tamana S, Van Eeden C, Hammam N, Chikuma J, Lefebvre D, Azad M, Becker A, Moraes T, Turvey S, Sears M, Subbarao P, Dick B, Rasmussen C, Pei J, Mandhane P. Association between infant sleep disordered breathing and externalizing behavioral trajectories in early childhood. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.1040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Pei J, Li P, Zhang ZY, Zhang HL, Gao YH, Wang DY, Zheng Y, Xu X, Cui JZ. Effect of TAGLN2 in the regulation of meningioma tumorigenesis and development. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2019; 22:307-313. [PMID: 29424888 DOI: 10.26355/eurrev_201801_14173] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To explore the role of transgelin-2 TAGLN2 in the development and progression of meningioma and the potential regulatory. MATERIALS AND METHODS TAGLN2 knockdown expression and overexpression in vitro models were constructed using lentivirus in meningioma cell line CH157; their corresponding transfection efficiencies were verified by qRT-PCR and Western Blot. Actions of TAGLN2 on the proliferation of meningioma cells were explored by CCK8 and colony formation assays. The effect of TAGLN2 on invasion of meningioma cells was analyzed by transwell cell invasion assay. Biological function of TAGLN2 on apoptosis of meningioma cells was determined by flow cytometry. Finally, Western Blot was used to investigate the detailed mechanism of TAGLN2 on regulating the biological functions of meningioma cells. RESULTS After down-regulating the expression of TAGLN2, there were significantly decreased capacities of cells proliferation and colony formation of meningioma cells, meanwhile, cell invasion was significantly decreased but the apoptosis rate was increased. On the contrary, up-regulation of TAGLN2 expression, the proliferation, colony formation ability were significantly increased as well as the invasion capacity, whilst apoptosis rate was decreased. Western Blot showed that expressions of p-PI3K and p-AKT were inhibited after knockdown of TAGLN2, which were significantly increased after TAGLN2 was overexpressed. CONCLUSIONS TAGLN2 can affect the proliferation, invasion and apoptosis of meningioma cells and may participate in the development of meningioma through regulating the PI3K/AKT signaling pathway.
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Pei J, Chen D, Jin W, Geng J, Wang W, Zhang S, Yue T, Zhang H. Structure and mode of action of a novel antibacterial peptide from the blood of Andrias davidianus. Lett Appl Microbiol 2019; 69:312-317. [PMID: 31529504 DOI: 10.1111/lam.13219] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 11/19/2018] [Accepted: 11/20/2018] [Indexed: 12/26/2022]
Abstract
Andrias davidianus is widely recognized in traditional medicine as a cure-all to treat a plethora of ailments. In a previous study, a novel antibacterial peptide named andricin B was isolated from A. davidianus blood. In this study, we investigated andricin B structure and its mode of action. Circular dichroism spectra suggested that andricin B adopts a random coil state in aqueous solution and a more rigid conformation in the presence of bacteria. Moreover propidium iodide/fluorescein diacetate double staining indicated that bacteria treated with andricin B were not immediately eliminated. Rather, there is a gradual bacterial death, followed by a sublethal stage. Scanning electronic microscope imaging indicates that andricin B might form pores on cell membranes, leading to the release of cytoplasmic contents. These results were consistent with flow cytometry analysis. Furthermore, Fourier transform infrared spectroscopy suggests that andricin B induces changes in the chemical properties in the areas surrounding these "pores" on the cell membranes. SIGNIFICANCE AND IMPACT OF THE STUDY: The results of this study suggested the new perspectives about the mode of action of antimicrobial peptide (AMP) active against sensitive bacteria. The AMP was able to be in a random coiled state in aqueous solution but to change to a more rigid one in the presence of sensitive bacteria. Exposure to AMP might not lead to immediate death of treated bacteria, rather bacteria concentration decreased gradually flattening at a sublethal stage. These findings will help people to understand better how the AMPs activate against sensitive bacteria.
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Krzeczkowski JE, Lau A, Fitzpatrick J, Tamana S, Smithson L, de Souza R, Kozyrskyj AL, Lefebvre D, Becker AB, Subbarao P, Turvey SE, Pei J, Schmidt LA, Sears MR, Van Lieshout RJ, Mandhane PJ. Maternal Metabolic Complications in Pregnancy and Offspring Behavior Problems at 2 Years of Age. Matern Child Health J 2019; 23:746-755. [PMID: 30600520 DOI: 10.1007/s10995-018-2691-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Objectives Prenatal maternal metabolic problems such as pre-pregnancy adiposity, excess gestational weight gain, and gestational diabetes mellitus (GDM) are associated with an increased risk of psychopathology in offspring. We examined whether these exposures were linked to symptoms of emotional and behavioral problems in offspring at 2 years of age, or if associations were due to confounding variables. Methods Data from 815 mother-child pairs enrolled at the Edmonton site of the Canadian Healthy Infant Longitudinal Development cohort were used to examine associations between gestational metabolic complications and scores on the externalizing and internalizing scales of the Child Behavior Checklist (CBCL-1½ to 5) at age two. Associations between maternal metabolic complications and offspring psychopathology were assessed before and after adjustment for gestational diet, socioeconomic status (SES), postpartum depression (PPD), prenatal smoking and breastfeeding. Results Pre-pregnancy body mass index and GDM, but not gestational weight gain, predicted more offspring externalizing and internalizing problems. However, after adjustment for confounding variables, these associations were no longer statistically significant. Post-hoc analyses revealed that gestational diet accounted for unique variance in both externalizing (semi-partial rdiet = - 0.20, p < 0.001) and internalizing (semi-partial rdiet = - 0.16, p = 0.01) problems. PPD and SES also accounted for a similar amount of variance for both externalizing (semi-partial rPPD = 0.17, p < 0.001; rses = - 0.11, p = 0.03) and internalizing problems (semi-partial rPPD = 0.21, p < 0.001; rses = - 0.14, p = 0.004). Conclusions for Practice Since the confounding effect of gestational diet persisted after adjustment for, and was similar in magnitude to, SES and PPD, future research should consider the impact of unhealthy prenatal diets on offspring neurodevelopment.
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