Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 489
Filtrar
Mais filtros

Eixos temáticos
Tipo de documento
Intervalo de ano de publicação
1.
BMC Pregnancy Childbirth ; 24(1): 246, 2024 Apr 06.
Artigo em Inglês | MEDLINE | ID: mdl-38582887

RESUMO

INTRODUCTION: Drinking during pregnancy is the leading cause of birth defects and child developmental disorders in Europe. The adverse effects of drinking during pregnancy may include physical, behavioural and cognitive problems, known collectively as fetal alcohol spectrum disorders (FASD). Evidence-based comprehensive recommendations at the European level on how to implement preventive and treatment policies to reduce alcohol-exposed pregnancies are needed. FAR SEAS, a tendered service contract (number 20,187,106) awarded by the European Commission, aimed at developing guidelines to respond to this knowledge gap. METHODS: FAR SEAS recommendations were built on (1) a two-phase review of interventions, (2) an international expert consultation, and (3) a pilot study on prevention of FASD conducted in the Mazovia region of Poland. The review of interventions included nineteen electronic open access databases, several repositories of grey literature and a key informant consultation covering most European Union (EU) countries and an additional guidelines search. After triangulating sources, 94 records were collected. Experts contributed in the design of the research questions, addressing the gaps in the literature and reviewing the recommendations formulated. The Polish pilot added nuances from real world practice to the formulated recommendations, resulting in the final set of guidelines for dissemination. RESULTS: The FAR SEAS Guidelines comprise 23 recommendations grouped into different topics areas of policies, communication strategies, screening, brief intervention and referral to treatment, treatment and social services. The recommendations highlight the need to respect women's autonomy and avoid discrimination and stigmatization; using universal screening for women of childbearing age, including detection of other psychosocial risks (such as domestic violence); and individualized, comprehensive and multidisciplinary supportive interventions for those who require it, such as those with alcohol use disorders, including women's partners. Policies to prevent FASD should be multicomponent, and public health communication should combine information about the risks together with self-efficacy messages to promote changes. CONCLUSIONS: The FAR SEAS guidelines are a tool to support policy-makers and service managers in implementing effective programmes to reduce prenatal alcohol exposure among general and at-risk population groups. FASD prevention has to involve comprehensive and multi-level evidence-based policies and practice, with services and activities tailored to the needs of women at differing levels of risk, and with due attention to reducing stigma.


Assuntos
Alcoolismo , Transtornos do Espectro Alcoólico Fetal , Efeitos Tardios da Exposição Pré-Natal , Feminino , Humanos , Gravidez , Consumo de Bebidas Alcoólicas/efeitos adversos , Consumo de Bebidas Alcoólicas/prevenção & controle , Europa (Continente) , Transtornos do Espectro Alcoólico Fetal/prevenção & controle , Transtornos do Espectro Alcoólico Fetal/epidemiologia , Oceanos e Mares , Projetos Piloto , Efeitos Tardios da Exposição Pré-Natal/epidemiologia
2.
BMC Med Educ ; 24(1): 874, 2024 Aug 13.
Artigo em Inglês | MEDLINE | ID: mdl-39138469

RESUMO

BACKGROUND: Student-led clinics can provide low-cost speciality care and practical interprofessional education (IPE) opportunities. In Australia, there are currently limited speciality services available that provide neurodevelopmental assessments that consider fetal alcohol spectrum disorder (FASD) as one possible outcome. The aim of the current study was to understand student experiences in a novel interprofessional student-led clinic for children and adolescents with suspected or confirmed prenatal alcohol exposure. METHOD: Seventeen allied health university students (11 occupational therapy; 6 psychology) participated in individual semi-structured interviews following completion of a 10-week clinic placement. Reflexive thematic analysis was undertaken using NVivo12. RESULTS: Four main themes were generated: (1) Interprofessional practice a key for students' development as future healthcare professionals; (2) Meaningful relationships and students' belief they made a difference; (3) Novel challenges tested students' capabilities on placement; and (4) Supervisor attitude and approach to learning supported student development. CONCLUSIONS: The current study demonstrated that the interprofessional student-led neurodevelopmental clinic provided a valuable IPE opportunity for students.


Assuntos
Relações Interprofissionais , Pesquisa Qualitativa , Humanos , Feminino , Austrália , Masculino , Transtornos do Espectro Alcoólico Fetal , Estudantes de Ciências da Saúde/psicologia , Adolescente , Terapia Ocupacional/educação , Educação Interprofissional , Criança , Psicologia/educação , Atitude do Pessoal de Saúde
3.
Crim Behav Ment Health ; 34(2): 208-270, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38660916

RESUMO

BACKGROUND: Screening for fetal alcohol spectrum disorder (FASD) has been identified as a promising approach to improve recognition, understanding and effective response to the unique needs of those with FASD in criminal legal settings. However, to date, there has been limited synthesis of relevant screening tools, indicators, or implementation considerations in this context. AIMS: The present review aimed to synthesise evidence and develop a conceptual framework for understanding how, when, why, for whom and by whom FASD screening tools, items and/or indicators and characteristics serve to accurately identify people with FASD in criminal legal contexts, with consideration of individual and system needs relevant to effective implementation and response. METHODS: A preregistered search was conducted using a modified realist review framework for both peer-reviewed articles and grey literature. Included sources were available in English, which focused on individuals with prenatal alcohol exposure and/or FASD with criminal legal involvement and offered new empirical evidence. Sources were reviewed using the Quality Control Tool for Screening Titles and Abstracts by Second Reviewer framework, extracted using a structured coding form and narratively synthesised. RESULTS: The search yielded 52 sources, 11 FASD screening tools designed for or applied in criminal legal settings and 38 potential FASD indicators or characteristics relevant to identifying people who may have FASD in criminal legal settings, organised into six conceptually related domains. There was limited evidence supporting the psychometric properties of screening tools across populations or settings, though growing evidence highlights the promise of some instruments. Although few studies characterised potential considerations to be made when implementing a screening tool or approach, both system and individual level needs related to recognising and effectively responding to FASD in criminal legal contexts were identified, and findings revealed strong support among legal and clinical professionals regarding the need for FASD screening in these settings. CONCLUSIONS: Findings of this review can be used to inform the development, selection, implementation and evaluation of FASD screening tools in criminal legal settings and underscore a continued need for enhanced resources, policy and cross-sectoral response to better support the needs of people with FASD in the criminal legal contexts.


Assuntos
Transtornos do Espectro Alcoólico Fetal , Transtornos do Espectro Alcoólico Fetal/diagnóstico , Humanos , Direito Penal , Feminino , Gravidez , Programas de Rastreamento , Criminosos/psicologia
4.
J Appl Res Intellect Disabil ; 37(6): e13277, 2024 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-39232856

RESUMO

BACKGROUND: Individuals with fetal alcohol spectrum disorder (FASD) experience complex needs that often necessitate support from multiple systems. There is growing evidence that people with FASD may benefit from integrated service delivery (ISD), but little is known about ISD elements and processes for this population. METHOD: Using a multi-method approach involving a literature review, analysis of programme data, and staff interviews, we examined how ISD is enacted at a rural Canadian FASD centre, and identified facilitators, barriers, and potential impacts of ISD at the centre. RESULTS: We describe key elements of integrated FASD programming and identify important contextual factors and themes related to ISD barriers, facilitators, and impacts: (1) connection, (2) freedom and autonomy, (3) client-centred care, (4) learning and growth, (5) and reframing expectations. CONCLUSIONS: This study may help to inform a roadmap for enhancing FASD service delivery and guiding FASD research and policy in Canada and beyond.


Assuntos
Prestação Integrada de Cuidados de Saúde , Transtornos do Espectro Alcoólico Fetal , Humanos , Transtornos do Espectro Alcoólico Fetal/terapia , Canadá , Feminino , Assistência Centrada no Paciente , Adulto , Pesquisa Qualitativa
5.
Hum Brain Mapp ; 44(17): 6120-6138, 2023 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-37792293

RESUMO

Prenatal alcohol exposure (PAE), the leading known cause of childhood developmental disability, has long-lasting effects extending throughout the lifespan. It is well documented that children prenatally exposed to alcohol have difficulties inhibiting behavior and sustaining attention. Thus, the Sustained Attention to Response Task (SART), a Go/No-go paradigm, is especially well suited to assess the behavioral and neural functioning characteristics of children with PAE. In this study, we utilized neuropsychological assessment, parent/guardian questionnaires, and magnetoencephalography during SART random and fixed orders to assess characteristics of children 8-12 years old prenatally exposed to alcohol compared to typically developing children. Compared to neurotypical control children, children with a Fetal Alcohol Spectrum Disorder (FASD) diagnosis had significantly decreased performance on neuropsychological measures, had deficiencies in task-based performance, were rated as having increased Attention-Deficit/Hyperactivity Disorder (ADHD) behaviors and as having lower cognitive functioning by their caretakers, and had decreased peak amplitudes in Broadmann's Area 44 (BA44) during SART. Further, MEG peak amplitude in BA44 was found to be significantly associated with neuropsychological test results, parent/guardian questionnaires, and task-based performance such that decreased amplitude was associated with poorer performance. In exploratory analyses, we also found significant correlations between total cortical volume and MEG peak amplitude indicating that the reduced amplitude is likely related in part to reduced overall brain volume often reported in children with PAE. These findings show that children 8-12 years old with an FASD diagnosis have decreased amplitudes in BA44 during SART random order, and that these deficits are associated with multiple behavioral measures.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade , Transtornos do Espectro Alcoólico Fetal , Efeitos Tardios da Exposição Pré-Natal , Humanos , Criança , Feminino , Gravidez , Transtornos do Espectro Alcoólico Fetal/diagnóstico por imagem , Transtornos do Espectro Alcoólico Fetal/psicologia , Efeitos Tardios da Exposição Pré-Natal/psicologia , Testes Neuropsicológicos , Transtorno do Deficit de Atenção com Hiperatividade/etiologia , Transtorno do Deficit de Atenção com Hiperatividade/psicologia , Etanol
6.
Mol Hum Reprod ; 29(2)2023 01 31.
Artigo em Inglês | MEDLINE | ID: mdl-36637195

RESUMO

Increasingly, couples struggling with fertility turn to assisted reproductive techniques, including IVF, to have children. Despite the demonstrated influence of periconception male health and lifestyle choices on offspring development, studies examining IVF success rates and child health outcomes remain exclusively focused on maternal factors. Using a physiologically relevant mouse model, we tested the hypothesis that chronic paternal preconception alcohol intake adversely affects IVF success and negatively impacts IVF offspring fetoplacental growth. Using a voluntary, binge-like mouse model, we exposed sexually mature C57BL/6J males to three preconception treatments (0% (Control), 6% EtOH or 10% EtOH) for 6 weeks, isolated and cryopreserved caudal sperm from treated males, and then used these samples to fertilize oocytes before assessing IVF embryo developmental outcomes. We found that preconception paternal alcohol use reduced IVF embryo survival and pregnancy success rates in a dose-dependent manner, with the pregnancy success rate of the 10% EtOH treatment falling to half those of the Controls. Mechanistically, we found that preconception paternal alcohol exposure disrupts embryonic gene expression, including Fgf4 and Egfr, two critical regulators of trophectoderm stem cell growth and placental patterning, with lasting impacts on the histological organization of the late-term placenta. The changes in placental histoarchitecture were accompanied by altered regulation of pathways controlling mitochondrial function, oxidative phosphorylation and some imprinted genes. Our studies indicate that male alcohol use may significantly impede IVF success rates, increasing the couple's financial burden and emotional stress, and highlights the need to expand prepregnancy messaging to emphasize the reproductive dangers of alcohol use by both parents.


Assuntos
Etanol , Fertilização in vitro , Exposição Paterna , Taxa de Gravidez , Animais , Feminino , Masculino , Camundongos , Gravidez , Camundongos Endogâmicos C57BL , Placenta , Sêmen , Etanol/efeitos adversos
7.
BMC Pregnancy Childbirth ; 23(1): 61, 2023 Jan 24.
Artigo em Inglês | MEDLINE | ID: mdl-36694121

RESUMO

BACKGROUND: Prenatal alcohol exposure (PAE) can result in a range of adverse neonatal outcomes, including Fetal Alcohol Spectrum Disorder (FASD). This systematic review and meta-analysis sought to investigate the effectiveness of brief interventions (BIs) in eliminating or reducing 1) alcohol consumption during pregnancy; and 2) PAE-related adverse neonatal outcomes; and 3) cost-effectiveness of BIs. METHOD: We conducted a systematic literature search for original controlled studies (randomized control trials (RCTs); quasi-experimental) in any setting, published from 1987 to 2021. The comparison group was no/minimal intervention, where a measure of alcohol consumption was reported. Studies were critically appraised using the Centre for Evidence-based Medicine Oxford critical appraisal tool for RCTs (1). The certainty in the evidence for each outcome was assessed using the GRADE (Grading of Recommendations Assessment, Development and Evaluation) (2). Meta-analysis of continuous and binary estimates of effect-size for similar outcome measures for BIs versus control groups were pooled and reported as mean difference (MD) Hedges' g and odds ratios (ORs), respectively. RESULTS: In total, 26 studies, all from high income countries, met inclusion criteria. Alcohol abstinence outcome available in 12 studies (n = 2620) found modest effects in favor of BIs conditions by increasing the odds of abstinence by 56% (OR = 1.56, 95% confidence interval (CI) = 1.15-2.13, I2 = 46.75%; p = 0.04). BIs effects for reduction in mean drinks/week (Cohen's d = - 0.21, 95%CI = - 0.78 to 0.36; p = 0.08) and AUDIT scores (g = 0.10, 95%CI = - 0.06 to 0.26; p = 0.17) were not statistically significant. Among seven studies (n = 740) reporting neonatal outcomes, BI receipt was associated with a modest and significant reduction in preterm birth (OR = 0.67, 95% CI = 0.46-0.98, I2 = 0.00%; p = 0.58). No statistically significant differences were observed for mean birthweight or lower likelihood of low birth weight (LBW). Certainty in the evidence was rated as 'low'. No eligible studies were found on cost-effectiveness of BIs. CONCLUSION: BIs are moderately effective in increasing abstinence during pregnancy and preventing preterm birth. More studies on the effectiveness of BIs are needed from low- and middle-income countries, as well as with younger mothers and with a broader range of ethnic groups.


Assuntos
Gestantes , Nascimento Prematuro , Feminino , Gravidez , Recém-Nascido , Humanos , Intervenção em Crise , Recém-Nascido de Baixo Peso , Consumo de Bebidas Alcoólicas/prevenção & controle
8.
Am J Drug Alcohol Abuse ; 49(1): 123-128, 2023 01 02.
Artigo em Inglês | MEDLINE | ID: mdl-36745739

RESUMO

Background: Fetal Alcohol Spectrum Disorder (FASD) is a neurodevelopmental disorder characterized by cognitive and adaptive impairment. FASF can be presented or not with sentinel facial features (SFF). The presence of such SFF have been positively correlated with cognitive impairment in children with FASD.Objectives: The current study explores difference in global intellectual functioning and how cognition affects adaptive behavior in children with and without SFF.Methods: A total of 88 children and adolescents (55 males, 33 females) with confirmed FASD diagnosis were included in the study, of which 16 had sentinel facial features. Childrens' neuropsychological functioning was assessed using the Wechsler Intelligence Scale for Children (WISC-V) and The Behavioral Assessment of the Dysexecutive Syndromes for Children (BADS-C). Adaptive behavior was explored through the Adaptive Behavior Assessment System (ABAS-3).Results: Children with SFF performed more poorly in tasks assessing processing speed (t = 2.495, t = .020) and executive functioning (t = 4.147, t = .001). Those children also had lower IQ scores than children without SFF (t = 2.658, t = .016). BADS-C overall scaled score was related to three of the four domains of the ABAS scale (conceptual, social, and practical) but only in the group of FASD children without SFF (B = 0.547, t = .020; B = 0.544,t = .049; B = 0.431,t = .040, respectively).Conclusions: The present study founds poorer cognitive outcomes in children who have FASD with sentinel facial features. In children without SFF, stronger executive functioning is also related to significantly stronger reported conceptual, social, and practical adaptive behaviors. Better understanding of cognitive and adaptive functioning in children with FASD may help in the design of tailored evidenced-based interventions.


Assuntos
Transtornos do Espectro Alcoólico Fetal , Masculino , Feminino , Adolescente , Gravidez , Humanos , Criança , Transtornos do Espectro Alcoólico Fetal/psicologia , Cognição , Função Executiva , Testes Neuropsicológicos
9.
Int J Mol Sci ; 24(7)2023 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-37047575

RESUMO

Fetal alcohol spectrum disorder (FASD) encompasses neurodevelopmental disabilities and physical birth defects associated with prenatal alcohol exposure. Previously, we attempted to identify epigenetic biomarkers for FASD by investigating the genome-wide DNA methylation (DNAm) profiles of individuals with FASD compared to healthy controls. In this study, we generated additional gene expression profiles in a subset of our previous FASD cohort, encompassing the most severely affected individuals, to examine the functional integrative effects of altered DNAm status on gene expression. We identified six differentially methylated regions (annotated to the SEC61G, REEP3, ZNF577, HNRNPF, MSC, and SDHAF1 genes) associated with changes in gene expression (p-value < 0.05). To the best of our knowledge, this study is the first to assess whole blood gene expression and DNAm-gene expression associations in FASD. Our results present novel insights into the molecular footprint of FASD in whole blood and opens opportunities for future research into multi-omics biomarkers for the diagnosis of FASD.


Assuntos
Transtornos do Espectro Alcoólico Fetal , Efeitos Tardios da Exposição Pré-Natal , Humanos , Feminino , Gravidez , Transtornos do Espectro Alcoólico Fetal/diagnóstico , Transtornos do Espectro Alcoólico Fetal/genética , Efeitos Tardios da Exposição Pré-Natal/genética , Fenótipo , Metilação de DNA , Biomarcadores , Canais de Translocação SEC/genética
10.
BMC Oral Health ; 23(1): 822, 2023 10 29.
Artigo em Inglês | MEDLINE | ID: mdl-37899489

RESUMO

BACKGROUND: The oral health status of an individual can dramatically influence quality of life. Most individuals in Canada report having good oral health, however, this is not true for individuals with developmental disabilities such as fetal alcohol spectrum disorder (FASD). The purpose of this study is to compare the oral health-related quality of life (OHRQoL) of individuals with FASD and the general population in Saskatoon, Saskatchewan. Additionally, it aims to suggest ways to improve the oral health status and OHRQoL of these individuals. METHODS: For this cross-sectional study, the Oral Health Impact Profile-14 (OHIP-14) survey was used to assess the impact that oral health related problems can have on an individual's quality life. This study used a cross-sectional cohort study design with a survey methodology. The sample population compromised of 154 individuals with FASD along with a separate control group of 154 otherwise healthy adults. RESULTS: The results of the study showed that most of the individuals in the FASD group experienced pain in the past month. In both groups, cost was most frequently cited as a barrier to accessing care. The majority of individuals in the control group experienced a low impact across all OHIP-14 domains except for physical disabilities. However, in the FASD group, most individuals experienced higher impact scores in some of the categories including functional limitation, psychological discomfort, psychological disability and handicap. CONCLUSION: The findings clearly demonstrate that there is a discernible effect on an individual's quality of life if they have poor oral health. In conclusion, further research is required to determine the most effective methods to improve the OHRQoL of individuals with disabilities.


Assuntos
Transtornos do Espectro Alcoólico Fetal , Saúde Bucal , Qualidade de Vida , Adulto , Feminino , Humanos , Gravidez , Estudos Transversais , Inquéritos e Questionários , Acessibilidade aos Serviços de Saúde , Deficiências do Desenvolvimento
11.
J Ethn Subst Abuse ; : 1-17, 2023 Jun 29.
Artigo em Inglês | MEDLINE | ID: mdl-37382542

RESUMO

Native WYSE CHOICES adapted an Alcohol Exposed Pregnancy (AEP) prevention curriculum for mobile health delivery for young urban American Indian and Alaska Native (AIAN) women. This qualitative study explored the relevance of culture in adapting a health intervention with a national sample of urban AIAN youth. In total, the team conducted 29 interviews across three iterative rounds. Participants expressed interest in receiving culturally informed health interventions, were open to cultural elements from other AIAN tribes, and highlighted the importance of culture in their lives. The study underscores why community voices are central in tailoring health interventions for this population.

12.
Hum Brain Mapp ; 43(13): 4145-4157, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35596624

RESUMO

Prenatal alcohol exposure (PAE) is associated with alterations to brain white matter microstructure. Previous studies of PAE have demonstrated different findings in young children compared to older children and adolescents, suggesting altered developmental trajectories and highlighting the need for longitudinal research. 122 datasets in 54 children with PAE (27 males) and 196 datasets in 89 children without PAE (45 males) were included in this analysis. Children underwent diffusion tensor imaging between 2 and 8 years of age, returning approximately every 6 months. Mean fractional anisotropy (FA) and mean diffusivity (MD) were obtained for 10 major brain white matter tracts and examined for age-related changes using linear mixed effects models with age, sex, group (PAE vs. control) and an age-by-group interaction. Children with PAE had slower decreases of MD over time in the genu of the corpus callosum, inferior fronto-occipital fasciculus, inferior longitudinal fasciculus, and uncinate fasciculus. No significant age-by-group interactions were noted for FA. These findings show slower white matter development in young children with PAE than in unexposed controls. This connects previous cross-sectional findings of lower MD in young children with PAE to findings of higher MD in older children and adolescents with PAE, and further helps to understand brain development in children with PAE. This deviation from typical development trajectories may reflect altered brain plasticity, which has implications for cognitive and behavioral learning in children with PAE.


Assuntos
Efeitos Tardios da Exposição Pré-Natal , Substância Branca , Adolescente , Anisotropia , Encéfalo/diagnóstico por imagem , Criança , Pré-Escolar , Estudos Transversais , Imagem de Tensor de Difusão/métodos , Feminino , Humanos , Lactente , Masculino , Gravidez , Efeitos Tardios da Exposição Pré-Natal/diagnóstico por imagem , Substância Branca/diagnóstico por imagem
13.
FASEB J ; 35(12): e22035, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34748230

RESUMO

Epigenetic mechanisms of paternal inheritance are an emerging area of interest in our efforts to understand fetal alcohol spectrum disorders. In rodent models examining maternal alcohol exposures, different maternal genetic backgrounds protect or sensitize offspring to alcohol-induced teratogenesis. However, whether maternal background can mitigate sperm-inherited alterations in developmental programming and modify the penetrance of growth defects induced by preconception paternal alcohol exposures remains unaddressed. In our previous studies examining pure C57Bl/6J crosses, the offspring of alcohol-exposed sires exhibited fetal growth restriction, enlarged placentas, and decreased placental efficiency. Here, we find that in contrast to our previous studies, the F1 offspring of alcohol-exposed C57Bl/6J sires and CD-1 dams do not exhibit fetal growth restriction, with male fetuses developing smaller placentas and increased placental efficiencies. However, in these hybrid offspring, preconception paternal alcohol exposure induces sex-specific changes in placental morphology. Specifically, the female offspring of alcohol-exposed sires displayed structural changes in the junctional and labyrinth zones, along with increased placental glycogen content. These changes in placental organization are accompanied by female-specific alterations in the expression of imprinted genes Cdkn1c and H19. Although male placentae do not display overt changes in placental histology, using RNA-sequencing, we identified programmed alterations in genes regulating oxidative phosphorylation, mitochondrial function, and Sirtuin signaling. Collectively, our data reveal that preconception paternal alcohol exposure transmits a stressor to developing offspring, that males and females exhibit distinct patterns of placental adaptation, and that maternal genetic background can modulate the effects of paternal alcohol exposure.


Assuntos
Adaptação Fisiológica , Etanol/toxicidade , Transtornos do Espectro Alcoólico Fetal/patologia , Retardo do Crescimento Fetal/patologia , Herança Paterna , Penetrância , Placenta/fisiopatologia , Animais , Epigênese Genética , Feminino , Transtornos do Espectro Alcoólico Fetal/etiologia , Retardo do Crescimento Fetal/induzido quimicamente , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Fenótipo , Gravidez , Fatores Sexuais , Transcriptoma
14.
Am J Obstet Gynecol ; 226(1): 130.e1-130.e11, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34364844

RESUMO

BACKGROUND: Prenatal alcohol exposure is the most common cause of birth defects and intellectual disabilities and can increase the risk of stillbirth and negatively impact fetal growth. OBJECTIVE: To determine the effect of early prenatal alcohol exposure on nonhuman primate placental function and fetal growth. We hypothesized that early chronic prenatal alcohol would alter placental perfusion and oxygen availability that adversely affects fetal growth. STUDY DESIGN: Rhesus macaques self-administered 1.5 g/kg/d of ethanol (n=12) or isocaloric maltose-dextrin (n=12) daily before conception through the first 60 days of gestation (term is approximately 168 days). All animals were serially imaged with Doppler ultrasound to measure fetal biometry, uterine artery volume blood flow, and placental volume blood flow. Following Doppler ultrasound, all animals underwent both blood oxygenation level-dependent magnetic resonance imaging to characterize placental blood oxygenation and dynamic contrast-enhanced magnetic resonance imaging to quantify maternal placental perfusion. Animals were delivered by cesarean delivery for placental collection and fetal necropsy at gestational days 85 (n=8), 110 (n=8), or 135 (n=8). Histologic and RNA-sequencing analyses were performed on collected placental tissue. RESULTS: Placental volume blood flow was decreased at all gestational time points in ethanol-exposed vs control animals, but most significantly at gestational day 110 by Doppler ultrasound (P<.05). A significant decrease in total volumetric blood flow occurred in ethanol-exposed vs control animals on dynamic contrast-enhanced magnetic resonance imaging at both gestation days 110 and 135 (P<.05); moreover, a global reduction in T2∗, high blood deoxyhemoglobin concentration, occurred throughout gestation (P<.05). Similarly, evidence of placental ischemic injury was notable by histologic analysis, which revealed a significant increase in microscopic infarctions in ethanol-exposed, not control, animals, largely present at middle to late gestation. Fetal biometry and weight were decreased in ethanol-exposed vs control animals, but the decrease was not significant. Analysis with RNA sequencing suggested the involvement of the inflammatory and extracellular matrix response pathways. CONCLUSION: Early chronic prenatal alcohol exposure significantly diminished placental perfusion at mid to late gestation and also significantly decreased the oxygen supply to the fetal vasculature throughout pregnancy, these findings were associated with the presence of microscopic placental infarctions in the nonhuman primate. Although placental adaptations may compensate for early environmental perturbations to fetal growth, placental blood flow and oxygenation were reduced, consistent with the evidence of placental ischemic injury.


Assuntos
Etanol/efeitos adversos , Macaca mulatta , Efeitos Tardios da Exposição Pré-Natal/etiologia , Animais , Modelos Animais de Doenças , Etanol/farmacologia , Feminino , Desenvolvimento Fetal/efeitos dos fármacos , Humanos , Placenta/efeitos dos fármacos , Gravidez
15.
Alcohol Clin Exp Res ; 46(4): 542-555, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35102585

RESUMO

BACKGROUND: There is growing evidence that the gut microbiota can be shaped by early-life experiences/exposures, with long-term consequences for brain, behavior, and health. Changes in the gut microbiota have also been identified in neurodevelopmental disorders including Autism Spectrum Disorder and schizophrenia. In contrast, no studies to date have investigated whether the gut microbiota is altered in individuals with Fetal Alcohol Spectrum Disorder (FASD), the neurodevelopmental disorder that results from prenatal alcohol exposure (PAE). The current study was designed to assess the impact of PAE on the fecal microbiota. METHODS: We used a rodent model in which pregnant Sprague-Dawley rats were provided with an EtOH-containing diet or a control diet throughout gestation. Fecal samples were collected from adult male and female animals and 16s rRNA sequencing was performed. RESULTS: Overall, PAE rats showed greater richness of bacterial species, with community structure investigations demonstrating distinct clustering by prenatal treatment. In addition, prenatal treatment and sex-specific alterations were observed for many specific microbes. For example, in males, Bacteroides and Bifidobacterium, and in females, Faecalitalea and Proteus, differed in abundance between PAE and control rats. CONCLUSIONS: Taken together, these results show for the first time that PAE has a long-lasting and sex-specific impact on the fecal microbiota. Further research is needed that considers fetal microbiota in the development of new interventions in FASD.


Assuntos
Transtorno do Espectro Autista , Transtornos do Espectro Alcoólico Fetal , Microbiota , Efeitos Tardios da Exposição Pré-Natal , Animais , Feminino , Humanos , Masculino , Gravidez , RNA Ribossômico 16S/genética , Ratos , Ratos Sprague-Dawley
16.
Alcohol Clin Exp Res ; 46(10): 1797-1807, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-36016464

RESUMO

BACKGROUND: Prenatal alcohol exposure (PAE) can negatively affect brain development thereby increasing the risk of cognitive deficits, behavioral challenges, and mental health problems. Brain iron is important for a number of physiological processes for healthy brain development. Animal studies show that PAE reduced brain iron; however, this has not been investigated in human children with PAE. METHODS: We studied 20 children and adolescents with PAE and 44 unexposed children and adolescents aged 7.5 to 15 years. All children underwent quantitative susceptibility mapping and T1-weighted magnetic resonance imaging scans. Susceptibility and volume measurements of the caudate, putamen, pallidum, thalamus, amygdala, hippocampus, and nucleus accumbens were extracted using FreeSurfer. ANCOVAs were used to compare volume and susceptibility between groups for each region of interest, controlling for age and gender. For structures where susceptibility differed by group, we also tested for an association between intelligence quotient (IQ) and susceptibility. RESULTS: There were no significant group differences in susceptibility after multiple comparison correction, though the PAE group had higher susceptibility in the thalamus compared to unexposed participants before correction (p = 0.032, q = 0.230). There was no association between IQ and thalamus susceptibility. The PAE group had significantly lower volume in the bilateral caudate, bilateral pallidum, and left putamen. CONCLUSIONS: These findings suggest susceptibility may be altered in children and adolescents with PAE, though more research is needed. Volume reductions are consistent with previous literature and likely underlie cognitive and behavioral deficits associated with PAE.


Assuntos
Efeitos Tardios da Exposição Pré-Natal , Criança , Animais , Humanos , Adolescente , Feminino , Gravidez , Efeitos Tardios da Exposição Pré-Natal/psicologia , Encéfalo/patologia , Imageamento por Ressonância Magnética/métodos , Testes de Inteligência , Ferro
17.
Can J Psychiatry ; 67(5): 361-370, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-34738837

RESUMO

OBJECTIVE: Individuals with fetal alcohol spectrum disorder (FASD) experience a range of complex neurodevelopmental, psychological, and socioenvironmental vulnerabilities. There is growing evidence that suicidal ideation, attempts, and death by suicide are significant concerns within this population. In this study, we (1) determined the rate of suicidal ideation/attempts in a large group of individuals with prenatal alcohol exposure (PAE) who were assessed for FASD in Canada and (2) investigated the associations between suicidal ideation/attempts and select demographic and biopsychosocial factors in this group. METHOD: A secondary analysis of data from Canada's National FASD Database, a national repository of clinical information gathered through FASD assessment and diagnostic clinics across the country, was conducted. Descriptive analyses, chi-square/Fisher's exact tests, and binary logistic regression were used to examine demographic and biopsychosocial variables and their associations with suicidality. RESULTS: In our sample of 796 participants (Mage = 17.7 years, range = 6-59; 57.6% male) assessed for FASD, 25.9% were reported to experience suicidal ideation/attempts. Numerous demographic and biopsychosocial factors were found to be significantly associated with suicidal ideation/attempts. The strongest associations with suicidal ideation/attempts were substance use, history of trauma/abuse, and impaired affect regulation. CONCLUSIONS: With this study, we contribute to the emerging evidence of elevated risk of suicidality among individuals with PAE/FASD and improve our understanding of factors that may exacerbate this risk. Findings have relevance for improving screening, prevention, and proactive treatment approaches for individuals with PAE and FASD, their families, and wider support systems.


Assuntos
Transtornos do Espectro Alcoólico Fetal , Efeitos Tardios da Exposição Pré-Natal , Suicídio , Adolescente , Adulto , Criança , Feminino , Transtornos do Espectro Alcoólico Fetal/diagnóstico , Transtornos do Espectro Alcoólico Fetal/epidemiologia , Humanos , Longevidade , Masculino , Pessoa de Meia-Idade , Gravidez , Efeitos Tardios da Exposição Pré-Natal/epidemiologia , Ideação Suicida , Adulto Jovem
18.
BMC Pediatr ; 22(1): 587, 2022 10 10.
Artigo em Inglês | MEDLINE | ID: mdl-36217109

RESUMO

BACKGROUND: Individuals with Fetal Alcohol Spectrum Disorder (FASD) are at risk of having adverse childhood experiences (ACEs), especially those with child protection and/or justice system involvement. The complex relationship between FASD and psychosocial vulnerabilities in the affected individual is an important clinical risk factor for comorbidity. This study (1) explored the ACEs and associated stressors in individuals with FASD; (2) investigated the association between ACEs and negative outcomes, i.e., justice/child protection system involvement; and (3) examined the relationship between ACEs and comorbid conditions such as mood and neurodevelopmental disorders. METHODS: Data were collected retrospectively via file review from diagnostic clinics in Western Australia. Life adversity was coded using a standardised ACEs questionnaire. A total of 211 participants (72% males) with FASD with a mean age of 11 years (range = 2-21) were included in the final sample. 70% of the total sample had been involved with the child protection system and 40% had trouble with the law. RESULTS: Exposure to drinking/substance misuse at home (70%) and domestic violence (52%) were the two most common ACEs across the total sample. In the entire cohort, 39% had four or more ACEs, indicating higher risks of poor health outcomes. Additional stressors recorded were disengagement from school (43%), transiency (19%), victims of bullying (12%), traumatic brain injury (9%) and homelessness (5%). ACEs such as drinking/substance misuse at home, emotional neglect and physical neglect were positively associated with child protection system involvement. Additionally, exposure to domestic violence was positively correlated with justice system involvement. Higher rates of life adversity in this clinical population were associated with an increased number of comorbidities. Specifically, those with FASD who had comorbidities such as attachment disorder, substance use disorder, and PTSD also reported higher ACEs scores. CONCLUSION: ACEs were common in this clinical population. Increased ACEs in this sample were associated with increased comorbidities and involvement with the child protection and/or justice system. This highlights that prevention, intervention and early diagnosis of FASD are important for at risk children to reduce the negative effects of ACEs.


Assuntos
Experiências Adversas da Infância , Maus-Tratos Infantis , Transtornos do Espectro Alcoólico Fetal , Transtornos Relacionados ao Uso de Substâncias , Adolescente , Adulto , Criança , Pré-Escolar , Comorbidade , Feminino , Transtornos do Espectro Alcoólico Fetal/epidemiologia , Humanos , Masculino , Gravidez , Estudos Retrospectivos , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Austrália Ocidental/epidemiologia , Adulto Jovem
19.
Behav Sci Law ; 40(1): 31-45, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34873747

RESUMO

Fetal alcohol spectrum disorder (FASD) is the largest known cause of intellectual disability (ID), and forensic experts are often called upon to determine if a defendant with FASD qualifies for a diagnosis of ID. Whether such a diagnosis is made may depend upon the diagnosing expert's choice of diagnostic manual: guidelines published by the American Association on Intellectual and Developmental Disabilities (now in its 12th edition [AAIDD-12]) or the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5). Although both manuals use the same three diagnostic "prongs" (i.e., intellectual deficits, adaptive deficits, and developmental onset), there are substantial differences in the way all three prongs are assessed-differences that increased with the publication of AAIDD-12. In particular, AAIDD-12 uses a bureaucratic "disability" model, with narrow emphasis on a small number of quantitative indicators and limited opportunity for clinical integration, while DSM-5 (and the little-changed forthcoming DSM-5-TR) uses a medical "disorder" model, with flexible reliance on a broad array of indicators and opportunity for clinical integration. The origins and nature of these differences are explored, and an argument is made that compared to the AAIDD formulation, the DSM model provides a more valid basis for forensic diagnosis of ID in individuals with FASD.


Assuntos
Transtornos do Espectro Alcoólico Fetal , Deficiência Intelectual , Manual Diagnóstico e Estatístico de Transtornos Mentais , Feminino , Transtornos do Espectro Alcoólico Fetal/diagnóstico , Medicina Legal , Humanos , Deficiência Intelectual/diagnóstico , Gravidez
20.
Behav Sci Law ; 40(1): 14-30, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34708434

RESUMO

In 2008, the Truth and Reconciliation Commission of Canada engaged in a public project of national reconciliation to address the ongoing impacts of settler colonialism including the disproportionate number of Indigenous adults and youth who are held in remand facilities awaiting trial or sentence as well as those who are convicted and sentenced to periods of incarceration. Efforts to further reconciliation by reducing Indigenous incarceration rates have relied largely on the courts and their application of a sentencing principle rooted in the Supreme Court's ruling in R. v. Gladue [1999] 1 SCR 688. In this article, we argue that the Gladue sentencing principle is being fundamentally undermined in the courts through risk models that actively displace the very context that Gladue reports seek to illuminate. Included in the analysis are the compounding impacts facing Indigenous individuals struggling with a complex disability like Fetal Alcohol Spectrum Disorder.


Assuntos
Colonialismo , Transtornos do Espectro Alcoólico Fetal , Adolescente , Adulto , Canadá , Feminino , Humanos , Aplicação da Lei , Gravidez
SELEÇÃO DE REFERÊNCIAS
Detalhe da pesquisa