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OBJECTIVE: To determine if prenatal alcohol exposure (PAE) affected physical and cognitive/behavioral outcomes in apparently typically developing, first-grade children. STUDY DESIGN: Three groups were compared: children with fetal alcohol spectrum disorders (FASD); children with PAE without FASD; and children without PAE. RESULTS: The three groups were significantly different on most physical traits and fewer neurodevelopmental traits. Two-group comparisons of exposed and unexposed, non-FASD groups were statistically different on: height, weight, head circumference (OFC), body mass index (BMI), and palpebral fissure length (PFL). Neurobehavioral outcomes were significant in three-group, but not two-group, comparisons. Few sex differences were observed; however, sex ratios indicated fewer male offspring in first grade among women who consumed 6+ drinks per occasion during pregnancy. For weight, OFC, BMI, age, rural residence, and drinking measures, mothers of exposed children without FASD were intermediaries between, and significantly different from, the other maternal groups. Adjusted for socioeconomic covariates, multivariate analysis of covariance (MANCOVA), three-group comparisons were significantly different for cognitive/behavioral variables (p<.001); however, two-group neurobehavior comparisons for children without FASD were not significant (p>.05). Physical trait MANCOVA comparisons of the non-FASD groups were significant only for weight (p<.004) when tested univariately and through stepdown analysis. Socioeconomic-adjusted trend plots were in the expected direction for nonverbal IQ, problem behaviors, attention, height, weight, OFC, vermilion, PFL, and total dysmorphology score. CONCLUSIONS: Even when meeting developmental norms, children with PAE exhibited trends of poorer growth and cognitive/behavioral traits than children without PAE. These findings support the notion that abstinence during pregnancy is best.
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BACKGROUND: Prenatal alcohol exposure (PAE) has serious physical consequences for children such as behavioral disabilities, growth disorders, neuromuscular problems, impaired motor coordination, and decreased muscle tone. However, it is not known whether loss of muscle strength occurs, and which interventions will effectively mitigate physical PAE impairments. We aimed to investigate whether physical alteration persists during adolescence and whether exercise is an effective intervention. RESULTS: Using paradigms to evaluate different physical qualities, we described that early adolescent PAE animals have significant alterations in agility and strength, without alterations in balance and coordination compared to CTRL animals. We evaluated the effectiveness of 3 different exercise protocols for 4 weeks: Enrichment environment (EE), Endurance exercise (EEX), and Resistance exercise (REX). The enriched environment significantly improved the strength in the PAE group but not in the CTRL group whose strength parameters were maintained even during exercise. Resistance exercise showed the greatest benefits in gaining strength, and endurance exercise did not. CONCLUSION: PAE induced a significant decrease in strength compared to CTRL in PND21. Resistance exercise is the most effective to reverse the effects of PAE on muscular strength. Our data suggests that individualized, scheduled, and supervised training of resistance is more beneficial than endurance or enriched environment exercise for adolescents FASD.
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Modelos Animais de Doenças , Transtornos do Espectro Alcoólico Fetal , Força Muscular , Condicionamento Físico Animal , Transtornos do Espectro Alcoólico Fetal/fisiopatologia , Transtornos do Espectro Alcoólico Fetal/prevenção & controle , Animais , Condicionamento Físico Animal/fisiologia , Feminino , Força Muscular/fisiologia , Gravidez , Masculino , Ratos , Efeitos Tardios da Exposição Pré-Natal , Ratos WistarRESUMO
OBJECTIVE: To assess the impact and potential mechanistic pathways of prenatal alcohol exposure (PAE) on longitudinal growth and nutritional status in early childhood. STUDY DESIGN: A cohort of 296 mother-infant dyads (32% with PAE vs 68% unexposed) were recruited in Leyte, the Philippines, and followed from early gestation through 24 months of age. PAE was assessed using serum phosphatidylethanol (PEth) captured twice prenatally and in cord blood and supplemented with self-reported alcohol consumption. Linear mixed models were used to examine longitudinal effects of PAE on growth from birth through 2 years including key potential mediating factors (placental histopathology, and infant serum leptin and Insulin-like Growth Factor 1 [IGF-1]). RESULTS: After adjusting for potential confounders, we found that PAE was significantly associated with a delayed blunting of linear growth trajectories (height-for-age z-score, body length) and weight (weight-for-age z-score, body weight) that manifested between 4 and 6 months and continued through 12-24 months. PAE was also associated with a decreased rate of mid-upper-arm circumference growth from birth to 12 months, and a lower mean IGF-1 levels at birth and 6 months. CONCLUSION: This study demonstrates a delayed impact of PAE on growth that manifested around 6 months of age, underscoring the importance of routine clinical monitoring in early childhood. Furthermore, the findings supported prior animal model findings that suggest a mechanistic role for IGF-1 in PAE-induced growth delay.
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Fator de Crescimento Insulin-Like I , Estado Nutricional , Efeitos Tardios da Exposição Pré-Natal , Humanos , Fator de Crescimento Insulin-Like I/metabolismo , Fator de Crescimento Insulin-Like I/análise , Feminino , Filipinas/epidemiologia , Gravidez , Lactente , Masculino , Recém-Nascido , Estudos Longitudinais , Pré-Escolar , Consumo de Bebidas Alcoólicas/efeitos adversos , Desenvolvimento Infantil/efeitos dos fármacos , Adulto , Sangue Fetal/metabolismo , Sangue Fetal/química , Glicerofosfolipídeos/sangue , Peptídeos Semelhantes à InsulinaRESUMO
Fetal Alcohol Spectrum Disorder (FASD) is a collective name for lifelong physical and neurodevelopmental problems caused by the gestational consumption of alcohol affecting fetal development. In Brazil, the lack of awareness among healthcare professionals, and the scarcity of suitable diagnostic tools and trained clinicians, can contribute to the underestimation of FASD prevalence and severity. The present review aims to map and analyze studies conducted in Brazil on children and adolescents with FASD or a history of prenatal alcohol exposure (PAE). Additionally, it intends to report the psychometric properties of the neurodevelopmental assessment tools applied in the selected articles. Searches were carried out in the databases Scielo, LILACS, PePSIC, EMBASE, PsycINFO, Web of Science, selecting original clinical studies that have investigated the neurodevelopment of this population. From a total of 175 studies, ten articles fit the inclusion criteria in which 18 instruments were identified. The most reported deficits were related to language, general intelligence quotient (IQ), adaptive behavior, attention, and visual perception. Our results point to the need for more clinical research on FASD in Brazil, as well as for the standardization and validation of neurodevelopmental assessment tools for the accurate diagnosis of FASD in Brazil.
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Prenatal alcohol exposure (PAE) impairs fetal development. Alcohol consumption was shown to modulate the renin-angiotensin system (RAS). This study aimed to analyze the effects of PAE on the expression of the renin-angiotensin system (RAS) and kallikrein-kinin system (KKS) peptide systems in the hippocampus and heart of mice of both sexes. C57Bl/6 mice were exposed to alcohol during pregnancy at a concentration of 10% (v/v). On postnatal day 45 (PN45), mouse hippocampi and left ventricles (LV) were collected and processed for messenger RNA (mRNA) expression of components of the RAS and KKS. In PAE animals, more pronounced expression of AT1 and ACE mRNAs in males and a restored AT2 mRNA expression in females were observed in both tissues. In LV, increased AT2, ACE2, and B2 mRNA expressions were also observed in PAE females. Furthermore, high levels of H2O2 were observed in males from the PAE group in both tissues. Taken together, our results suggest that modulation of the expression of these peptidergic systems in PAE females may make them less susceptible to the effects of alcohol.
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The impact of prenatal alcohol exposure (PAE) varies considerably between individuals, leading to morphological and genetic changes. However, minor changes usually go undetected in PAE children. We investigated PAE's effects on gene transcription of genes related to cardiac dysfunction signaling in mouse myocardium and morphological changes. C57Bl/6 mice were subjected to a 10% PAE protocol. In postnatal days 2 and 60 (PN2 and PN60), morphometric measurements in the offspring were performed. Ventricular samples of the heart were collected in PN60 from male offspring for quantification of mRNA expression of 47 genes of nine myocardial signal transduction pathways related to cardiovascular dysfunction. Animals from the PAE group presented low birth weight than the Control group, but the differences were abolished in adult mice. In contrast, the mice's size was similar in PN2; however, PAE mice were oversized at PN60 compared with the Control group. Cardiac and ventricular indexes were increased in PAE mice. PAE modulated the mRNA expression of 43 genes, especially increasing the expressions of genes essential for maladaptive tissue remodeling. PAE animals presented increased antioxidant enzyme activities in the myocardium. In summary, PAE animals presented morphometric changes, transcription of cardiac dysfunction-related genes, and increased antioxidant protection in the myocardium.
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The aim of the study was to investigate three aspects of auditory function (auditory acuity, cochlear dysfunction, and auditory processing) in adolescents with fetal alcohol exposure without phenotypic changes. Fifty-one adolescents with and without intrauterine exposure to alcohol were selected from a cohort study. The summons, evaluation, and analysis of the results were carried out blindly regarding the respective exposure to alcohol. The auditory tests were pure-tone audiometry, transient otoacoustic emissions, and behavioral assessment of auditory processing (speech-in-noise, dichotic digits, and gap-in-noise). After testing, 45 adolescents were included in the evaluation and were divided into exposed (n = 22) and non-exposed (n = 23) groups. Hearing loss was identified in one subject in the exposed group (4.5%). In the absence of hearing loss, there were no significant differences in tonal thresholds or in the magnitudes of the sensory (cochlear) responses between groups (p > 0.05). There was also no difference between the two groups regarding performance on the processing tests (speech-in-noise p = 0.71, dichotic p = 0.94, and gap-in-noise p = 0.33). However, the exposed group had more cases of hearing disorders (hearing loss plus auditory processing disorders) than the non-exposed group (22.7% vs. 4.3%).
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Perda Auditiva , Efeitos Tardios da Exposição Pré-Natal , Gravidez , Humanos , Feminino , Adolescente , Estudos de Coortes , Ruído , Audiometria de Tons PurosRESUMO
SUMMARY: Gestational alcohol exposure inhibits neurological as well as bone growth and development both in fetal and postnatal life. Stunted stature, osteoporosis and fractures in adult life are some of the adverse effects. While the impact of intrauterine alcohol on the brain has been extensively investigated, studies on the effects on bone are relatively few. Therefore, our study aimed to examine the impact of prenatal alcohol exposure on bone microarchitecture in 3-week-old rats using Micro-focus X-Ray Computed Tomography (Micro CT). Time mated pregnant Sprague Dawley dams (13) were randomly placed into 3 groups: ethanol (n=5), saline control (n=5) and untreated control (n=3). The former 2 groups received treatment with 0.015ml/g of 25.2 % ethanol and 0.9 % saline, respectively, for the first 19 days of gestation. The untreated group received no treatment. The pups remained with their dams until termination at 21 days of age. From each dam, 2 pups were collected resulting in: ethanol (n=10), saline controls (n= 10) and untreated controls (n = 6). The humeri of the pups were dissected and scanned using a 3D-μCT scanner (Nikon XTH 225L) at 15μm resolution. Trabecular and cortical parameters were analysed using Volume Graphics Studio® software following reconstruction. Results showed a decrease in trabecular size, spaces, thickness, and volume. There was a decrease in cortical bone area in the ethanol group compared to the controls. These findings may suggest that osteoporosis and fractures seen as gestational alcohol effects may be due to compromised trabecular structure.
RESUMEN: La exposición al alcohol durante la gestación inhibe el crecimiento y desarrollo neurológico y óseo tanto en la vida fetal como posnatal. Algunos de los efectos adversos incluyen la estatura atrofiada, osteoporosis y fracturas en la vida adulta. Si bien se ha estudiado el impacto del alcohol intrauterino en el cerebro, los estudios sobre los efectos en los huesos son escasos. Por lo tanto, nuestro estudio tuvo como objetivo examinar el impacto de la exposición prenatal al alcohol en la microarquitectura ósea en ratas de 3 semanas de edad utilizando Tomografía Computarizada de Rayos X Micro-focus (Micro CT). Las hembras de Sprague Dawley preñadas con apareamiento temporal (13) se colocaron aleatoriamente en 3 grupos: etanol (n = 5), control de solución salina (n = 5) y control sin tratar (n = 3). Los primeros 2 grupos recibieron tratamiento con 0,015 ml /g de etanol al 25,2 % y solución salina al 0,9 %, respectivamente, durante los primeros 19 días de gestación. El grupo no tratado no recibió tratamiento. Las crías permanecieron con sus madres hasta la terminación a los 21 días de edad. De cada madre, se recolectaron 2 crías que dieron como resultado: etanol (n = 10), controles salinos (n = 10) y controles no tratados (n = 6). Se diseccionaron y escanearon los húmero de las crías usando un escáner 3D-μCT (Nikon XTH 225L) a una resolución de 15 μm. Los parámetros trabeculares y corticales se analizaron utilizando el software Volume Graphics Studio® después de la reconstrucción. Los resultados mostraron una disminución en el tamaño trabecular, los espacios, el grosor y el volumen. Hubo una disminución en el área del hueso cortical en el grupo de etanol en comparación con los controles. Estos hallazgos pueden sugerir que la osteoporosis y las fracturas por causa de los efectos del alcohol gestacional se pueden deber a una estructura trabecular comprometida.
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Animais , Ratos , Exposição Materna , Etanol/farmacologia , Osteoporose/induzido quimicamente , Efeitos Tardios da Exposição Pré-Natal , Ratos Sprague-Dawley , Bebidas Alcoólicas/efeitos adversos , Osso Esponjoso/efeitos dos fármacos , Úmero/efeitos dos fármacosRESUMO
Maternal ethanol consumption during pregnancy is one of the main causes of Neurodevelopmental disorders (NDD). Prenatal alcohol exposure (PAE) produces several adverse manifestations. Even low or moderate intake has been associated with long-lasting behavioral and cognitive impairment in offspring. In this study we examined the gene expression profile in the rat nucleus accumbens using microarrays, comparing animals exposed prenatally to ethanol and controls. Microarray gene expression showed an overall downward regulatory effect of PAE. Gene cluster analysis reveals that the gene groups most affected are related to transcription regulation, transcription factors and homeobox genes. We focus on the expression of the C-X-C motif chemokine ligand 16 (Cxcl16) which was differentially expressed. There is a significant reduction in the expression of this chemokine throughout the brain under PAE conditions, evidenced here by quantitative polymerase chain reaction qPCR and immunohistochemistry. Chemokines are involved in neuroprotection and implicated in alcohol-induced brain damage and neuroinflammation in the developing central nervous system (CNS), therefore, the significance of the overall decrease in Cxcl16 expression in the brain as a consequence of PAE may reflect a reduced ability in neuroprotection against subsequent conditions, such as excitotoxic damage, inflammatory processes or even hypoxic-ischemic insult.
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Prenatal ethanol exposure affects brain development and causes neural impairment, leading to both cognitive and behavioral consequences in the offspring. Therefore, the aim of this study was to investigate the impact of prenatal exposure to small amounts of alcohol on social play behavior in adolescent male offspring. Swiss mice were prenatally exposed to ethanol by feeding pregnant dams with a liquid diet containing 25% alcohol-derived calories during gestation (alcohol group). They were then compared to both pair-fed dams that received an isocaloric liquid diet containing 0% alcohol-derived calories (pair-fed group) and dams with ad libitum access to a liquid control diet (control group). Additionally, maternal behavior was evaluated in terms of neural activation indexed via c-fos expression in the prefrontal cortex. Although dams exposed to alcohol during pregnancy did not alter their maternal behavior, the offspring presented a decrease in their social play behavior compared with both control and pair-fed offspring. The decrease in social play behavior may be associated with a decrease in number of c-fos-positive cells in the prefrontal cortex. The exposure to small amounts of alcohol during intrauterine development causes both a deficit in social play behavior and a reduction in the neuronal activity seen in the prefrontal cortex.
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Comportamento Animal/efeitos dos fármacos , Etanol/toxicidade , Córtex Pré-Frontal/efeitos dos fármacos , Efeitos Tardios da Exposição Pré-Natal , Comportamento Social , Fatores Etários , Animais , Feminino , Idade Gestacional , Locomoção/efeitos dos fármacos , Masculino , Exposição Materna , Córtex Pré-Frontal/metabolismo , Córtex Pré-Frontal/fisiopatologia , Gravidez , Proteínas Proto-Oncogênicas c-fos/metabolismoRESUMO
BACKGROUND: There is increasing interest in the development of newborn screening tests to identify children at risk of fetal alcohol spectrum disorder (FASD) in order to provide these children with early intervention. Phosphatidylethanol (PEth) has emerged as a potential universal newborn screening candidate. METHODS: The aim of this report was to present the results of a study designed to compare PEth levels in 1,140 postpartum women and their newborn infants in Montevideo, Uruguay, and Sao Paulo, Brazil. Self-report alcohol use during pregnancy data was collected, along with both maternal and newborn dried blood spot samples for PEth analysis. RESULTS: The average age and parity of the women in the sample were 26 years of age and 2.3 pregnancies. For the Uruguay sample (n = 611), 45.8% of postpartum women had PEth levels ≥ 8 ng/ml with a mean positive PEth of 43.6 ng/ml. In contrast, 86.8% of the newborns had PEth levels ≥ 8 ng/ml, with a mean positive PEth of 77.4 ng/ml. For the Brazil sample (n = 529), 33.2% of women had PEth levels ≥ 8 ng/ml with a mean positive PEth of 31 ng/ml. In contrast, 76.9% of the Brazil newborns had PEth levels ≥ 8 ng/ml and 43.9% with a mean positive PEth of 61.1 ng/ml. PEth levels were significantly higher in newborns compared with their postpartum mothers in both the Uruguay and Brazil samples. Self-reported third-trimester alcohol was 6% in the Uruguay sample and 9.1% in the Brazil sample compared with positive maternal PEth levels in 45.8% and 33.2%, respectively. CONCLUSIONS: Clinicians may want to consider newborn PEth screening in high-risk populations where prenatal alcohol use is common. The mechanism underlying significantly higher PEth levels in newborns compared with their mothers is not known.
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Consumo de Bebidas Alcoólicas/sangue , Transtornos do Espectro Alcoólico Fetal/sangue , Glicerofosfolipídeos/sangue , Complicações na Gravidez/sangue , Efeitos Tardios da Exposição Pré-Natal/sangue , Adulto , Brasil , Teste em Amostras de Sangue Seco , Intervenção Educacional Precoce , Feminino , Transtornos do Espectro Alcoólico Fetal/diagnóstico , Humanos , Recém-Nascido , Masculino , Triagem Neonatal , Período Pós-Parto/sangue , Gravidez , Efeitos Tardios da Exposição Pré-Natal/diagnóstico , Autorrelato , UruguaiRESUMO
Rats exposed prenatally to alcohol show a reduction in the spontaneous activity of dopaminergic neurons of the ventral tegmental area (VTA), as well as greater impulsive behavior and motor activity, behavioral alterations that have been related to dopaminergic dysfunction. Modafinil (MOD) is a dopamine (DA) reuptake blocker prescribed to treat sleep disorders; however, in recent years it has been used for the treatment of ADHD with positive results. Also, studies in humans and rodents show beneficial effects on learning and attention; however, studies evaluating MOD effects on impulsivity are few and show contradictory results. The purpose of this work was to evaluate the effect of a daily dose of MOD (60 mg/kg i.g.) on cognitive (or choice) impulsivity and motor activity in male preadolescent rats exposed prenatally to alcohol or sucrose (isocaloric control). MOD reduced the impulsive responses in a delay discounting task (DDT) at the same time that increased the motor activity, in both healthy and prenatal alcohol treated rats; however, MOD reduced the response latency in DDT only in prenatal alcohol treated rats. This differential effect of DA activation on impulsivity and motor activity show that the MOD dose that improves the impulse control, does not necessarily decrease motor activity, and suggests a possible differential neural mechanism underlying the expression of these behaviors. On the other hand, the changes in the response latency, only in prenatal alcohol treated groups, suggest that decision-making in animals with a dopaminergic dysfunction is more susceptible to be affected by MOD action.
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Etanol/toxicidade , Comportamento Impulsivo/efeitos dos fármacos , Modafinila/farmacologia , Atividade Motora/efeitos dos fármacos , Efeitos Tardios da Exposição Pré-Natal/induzido quimicamente , Animais , Atenção/efeitos dos fármacos , Comportamento Animal/efeitos dos fármacos , Estimulantes do Sistema Nervoso Central/farmacologia , Neurônios Dopaminérgicos/efeitos dos fármacos , Feminino , Humanos , Masculino , Modafinila/administração & dosagem , Gravidez , Ratos , Ratos Wistar , Receptores Dopaminérgicos/metabolismo , Análise e Desempenho de Tarefas , Área Tegmentar Ventral/efeitos dos fármacosRESUMO
The purpose of the present research was to study the effect of different doses of modafinil (0, 10, 30 and 60â¯mg/kg) on reactive impulsivity, attention and hyperactivity in male Wistar rats treated with prenatal alcohol (PA), treatment that produces an alteration in dopaminergic (DA) neurons. The control rats were treated prenatally with sucrose (PS). Animals with PA were less efficient, more impulsive, and inattentive compared to PSs, in a Go-Signal-Task paradigm. The results indicated that a dose of 30â¯mg/kg of modafinil increased the number of correct responses in the task; decreased impulsivity and did not affect the attention in the PA animals. In contrast, in the PS animals the doses of 30 and 60â¯mg/kg of modafinil decreased the number of correct responses and increased the impulsivity. Inattention was only increased with 30â¯mg/kg in PS animals. Hyperactivity increased with a dose-response effect of modafinil in the PS group; meanwhile, this behavior increased only with the dose of 60â¯mg/kg in the PA group. A moderate dose of modafinil had beneficial effects on behaviors that are altered in animals with a dysfunction of the dopaminergic system; on the other hand, it has a deleterious effect on these behaviors in healthy animals, which suggests that it is due to the predominance of the psychostimulant effect of this drug. The main target of modafinil is the DA system, thus, the data suggest that this system has an important role in impulsive behavior and hyperactivity.
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Atenção/efeitos dos fármacos , Estimulantes do Sistema Nervoso Central/administração & dosagem , Etanol/administração & dosagem , Comportamento Impulsivo/efeitos dos fármacos , Modafinila/administração & dosagem , Atividade Motora/efeitos dos fármacos , Efeitos Tardios da Exposição Pré-Natal/psicologia , Animais , Comportamento Animal/efeitos dos fármacos , Feminino , Masculino , Gravidez , Efeitos Tardios da Exposição Pré-Natal/induzido quimicamente , Ratos WistarRESUMO
BACKGROUND: Background: The studies on intelligence in individuals with fetal alcohol exposure are conflicting. Some have found a relevant impairment in this population, while others found results that were consistent with the population at large. OBJECTIVES: Describe the results of studies on intelligence in individuals with Fetal Alcohol Spectrum Disorders. METHODS: Indexed articles of the last 10 years were selected for an integrative literature review. After inclusion and exclusion criteria were satisfied 37 articles were selected. RESULTS: General intelligence, both verbal and non-verbal, is impaired in people who are prenatally exposed to alcohol. There is a tendency to a greater reduction in the Freedom from Distractibility/Working Memory Index of Wechsler Scales. CONCLUSIONS: Reduction in intelligence seems to occur on a continuum similar to the fetal alcohol spectrum. The reduction of the Freedom from Distractibility/Working Memory Index appears to be a reflection of a greater impairment of mathematical ability.
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Transtornos do Espectro Alcoólico Fetal/diagnóstico , Transtornos do Espectro Alcoólico Fetal/psicologia , Inteligência , Escalas de Wechsler , Estudos de Casos e Controles , Etanol/efeitos adversos , Feminino , Transtornos do Espectro Alcoólico Fetal/epidemiologia , Humanos , Inteligência/efeitos dos fármacos , Gravidez , Efeitos Tardios da Exposição Pré-Natal/diagnóstico , Efeitos Tardios da Exposição Pré-Natal/epidemiologia , Efeitos Tardios da Exposição Pré-Natal/psicologiaRESUMO
A physiological parallelism, or even a causal effect relationship, can be deducted from the analysis of the main characteristics of the "Alcohol Related Neurodevelopmental Disorders" (ARND), derived from prenatal alcohol exposure (PAE), and the behavioral performance in the Attention-deficit/hyperactivity disorder (ADHD). These two clinically distinct disease entities, exhibits many common features. They affect neurological shared pathways, and also related neurotransmitter systems. We briefly review here these parallelisms, with their common and uncommon characteristics, and with an emphasis in the subjacent molecular mechanisms of the behavioral manifestations, that lead us to propose that PAE in rats can be considered as a suitable model for the study of ADHD.
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OBJECTIVE: To develop and validate a hierarchical decision tree model that combines neurobehavioral and physical measures to identify children affected by prenatal alcohol exposure even when facial dysmorphology is not present. STUDY DESIGN: Data were collected as part of a multisite study across the US. The model was developed after we evaluated more than 1000 neurobehavioral and dysmorphology variables collected from 434 children (8-16 years of age) with prenatal alcohol exposure, with and without fetal alcohol syndrome, and nonexposed control subjects, with and without other clinically-relevant behavioral or cognitive concerns. The model subsequently was validated in an independent sample of 454 children in 2 age ranges (5-7 years or 10-16 years). In all analyses, the discriminatory ability of each model step was tested with logistic regression. Classification accuracies and positive and negative predictive values were calculated. RESULTS: The model consisted of variables from 4 measures (2 parent questionnaires, an IQ score, and a physical examination). Overall accuracy rates for both the development and validation samples met or exceeded our goal of 80% overall accuracy. CONCLUSIONS: The decision tree model distinguished children affected by prenatal alcohol exposure from nonexposed control subjects, including those with other behavioral concerns or conditions. Improving identification of this population will streamline access to clinical services, including multidisciplinary evaluation and treatment.
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Consumo de Bebidas Alcoólicas/efeitos adversos , Árvores de Decisões , Transtornos do Espectro Alcoólico Fetal/diagnóstico , Efeitos Tardios da Exposição Pré-Natal/diagnóstico , Adolescente , Criança , Pré-Escolar , Feminino , Transtornos do Espectro Alcoólico Fetal/etiologia , Humanos , Lactente , Testes Neuropsicológicos , Gravidez , Efeitos Tardios da Exposição Pré-Natal/etiologia , Reprodutibilidade dos Testes , Estudos Retrospectivos , Estados UnidosRESUMO
This paper aimed to examine prenatal alcohol exposure and neuropsychological parameters and its relationship to impulsivity and inattention. Longitudinal prospective case-control cohort study starting with the risk drinking assessment of 449 third-trimester pregnant women, and a follow-up phase with 56 mother-child pairs (28 alcohol-exposed versus 28 non-exposed), with 11-12 years old children. The cohort study was followed up for 11 years. Quantity-frequency structured questions as well as AUDIT and T-ACE questionnaires were used to assess maternal alcohol consumption. A comprehensive set of neuropsychological testing instruments was used, including d2 Test, RCFT, RAVLT, WISC-III, among others. To control low IQ effects and intellectual disability diagnoses, as well differences in school skills biasing the neuropsychological comparison assessment, children with IQ <70 or learning disabilities were excluded of the sample. The two groups showed to be very comparable regarding sex, age, schooling, global IQ, laterality and maternal and social risk factors. Significant statistical differences were found for higher speed processing, total errors, and number of omission errors in the d2 Test. Likewise, there were differences found on RCFT test (lower scores for copy, immediate and delayed recall), and on semantic verbal fluency tests with a lower score. Prenatal alcohol-exposed children seems to be more inattentive and impulsive; they have poorer skills in verbal fluency, visuospatial working memory, and executive processing when compared to non-exposed children who were part of the same cohort sample.
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Consumo de Bebidas Alcoólicas/efeitos adversos , Consumo de Bebidas Alcoólicas/epidemiologia , Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Comportamento Impulsivo , Efeitos Tardios da Exposição Pré-Natal/epidemiologia , Adulto , Consumo de Bebidas Alcoólicas/psicologia , Transtorno do Deficit de Atenção com Hiperatividade/diagnóstico , Transtorno do Deficit de Atenção com Hiperatividade/psicologia , Brasil , Estudos de Casos e Controles , Criança , Estudos de Coortes , Feminino , Seguimentos , Humanos , Testes de Inteligência , Estudos Longitudinais , Masculino , Testes Neuropsicológicos , Gravidez , Efeitos Tardios da Exposição Pré-Natal/diagnóstico , Efeitos Tardios da Exposição Pré-Natal/psicologia , Estudos ProspectivosRESUMO
This case study describes the outcomes of a Saturday community intervention program for children suspected of or affected by prenatal exposure to alcohol who exhibited learning deficits. Five children participated in the program and received individualized interventions designed to address learning and academic deficits in either reading or mathematics. Often children affected by prenatal alcohol exposure exhibit deficits with executive processes, including metacognitive functioning, that interfere with learning. Instruction to improve metacognitive skills was incorporated into the intervention programs. The metacognitive training was adapted from the Math Interactive Learning Experience (MILE) and targeted the children's skills to plan, organize, shift, and evaluate problem solving strategies. Standardized tests of nonverbal reasoning and academic achievement were administered before and after the children received interventions to measure progress. The results indicated that four of the five children who participated in the program showed clinically significant gains with scores increasing from the borderline or low average to the average range on measures of nonverbal reasoning, reading comprehension, or mathematics reasoning. One child showed no gains on measures of nonverbal reasoning and reading. A variety of factors including age, cognitive profile, session attendance, and access to special education and other intervention services may have influenced the child's progress. Overall, the case reviews suggest that the interventions show promise to remediate learning problems of children affected by prenatal alcohol exposure in a community setting...
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Humanos , Masculino , Feminino , Criança , Adolescente , Função Executiva , Lesões Pré-Natais , Serviços de Reabilitação , Testes de Aptidão , Transtornos CognitivosRESUMO
This case study describes the outcomes of a Saturday community intervention program for children suspected of or affected by prenatal exposure to alcohol who exhibited learning deficits. Five children participated in the program and received individualized interventions designed to address learning and academic deficits in either reading or mathematics. Often children affected by prenatal alcohol exposure exhibit deficits with executive processes, including metacognitive functioning, that interfere with learning. Instruction to improve metacognitive skills was incorporated into the intervention programs. The metacognitive training was adapted from the Math Interactive Learning Experience (MILE) and targeted the children's skills to plan, organize, shift, and evaluate problem solving strategies. Standardized tests of nonverbal reasoning and academic achievement were administered before and after the children received interventions to measure progress. The results indicated that four of the five children who participated in the program showed clinically significant gains with scores increasing from the borderline or low average to the average range on measures of nonverbal reasoning, reading comprehension, or mathematics reasoning. One child showed no gains on measures of nonverbal reasoning and reading. A variety of factors including age, cognitive profile, session attendance, and access to special education and other intervention services may have influenced the child's progress. Overall, the case reviews suggest that the interventions show promise to remediate learning problems of children affected by prenatal alcohol exposure in a community setting.(AU)
Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Lesões Pré-Natais , Função Executiva , Serviços de Reabilitação , S1983-32882014005000001 , Testes de Aptidão , Transtornos CognitivosRESUMO
Prenatal alcohol exposure can have serious and permanent adverse effects. The developing brain is the most vulnerable organ to the insults of prenatal alcohol exposure. A behavioral phenotype of prenatal alcohol exposure including conduct disorders is also described. This study on a sample of Brazilian adolescents convicted for criminal behavior aimed to evaluate possible clinical features of Fetal Alcohol Syndrome (FAS). These were compared to a control group of school adolescents, as well as tested for other environmental risk factors for antisocial behavior. A sample of 262 institutionalized male adolescents due to criminal behavior and 154 male students aged between 13 and 21 years comprised the study population. Maternal use of alcohol was admitted by 48.8% of the mothers of institutionalized adolescents and by 39.9% of the school students. In this sample of adolescents we could not identify individual cases with a clear diagnosis of FAS, but signs suggestive of FASD were more common in the institutionalized adolescents. Social factors like domestic and family violence were frequent in the risk group, this also being associated to maternal drinking during pregnancy. The inference is that in our sample, criminal behavior is more related to complex interactions between environmental and social issues including prenatal alcohol exposure.