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1.
Ecotoxicology ; 33(1): 1-21, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38112924

RESUMO

This research aimed to characterize and compare the subchronic impacts of Cu to a Cu, Cd, and Zn mixture in early life stages of rainbow trout (Oncorhynchus mykiss) by examining uptake, survival, growth, development, and histopathology parameters. To accomplish this, rainbow trout were exposed for 31 days from eyed embryos to the swim-up fry life stage to waterborne Cu (31, 47, 70, and 104 µg/L) individually or as mixture containing Cd (4.1, 6.2, 9.3, and 14 µg/L) and Zn (385, 578, 867, and 1300 µg/L). Exposures elicited pronounced effects on survival when Cu was administered as a mixture (LC25 = 32.9 µg/L Cu) versus individually (LC25 = 46.3 µg/L Cu). Mixtures of Cu, Cd, and Zn also elicited more pronounced sublethal toxicity relative to equivalent Cu treatments with respect to reduced yolk sac resorption and increased incidence and/or severity of gill, liver, and kidney lesions. Our findings of reduced body weight (EC10, Cu = 55.0 µg/L Cu; EC10, Cu+Cd+Zn = 58.9 µg/L Cu), yolk sac resorption (LOECCu = 70 µg/L Cu; LOECCu+Cd+Zn = 70 µg/L Cu), coelomic fat (LOECCu = 47 µg/L Cu; LOECCu+Cd+Zn = 70 µg/L Cu), and increased hepatocellular cytoplasmic vacuolation (LOECCu = 70 µg/L Cu; LOECCu+Cd+Zn = 47 µg/L Cu) collectively indicate a complicated metabolic interference by metals in exposed fish. These lethal and sublethal effects observed in the laboratory could translate to reduced survival and fitness of wild salmonid populations inhabiting waterbodies receiving wastewater or runoff containing multiple metals at elevated concentrations.


Assuntos
Oncorhynchus mykiss , Poluentes Químicos da Água , Animais , Cobre/toxicidade , Cobre/metabolismo , Oncorhynchus mykiss/metabolismo , Cádmio/análise , Zinco/toxicidade , Zinco/metabolismo , Metais/metabolismo , Poluentes Químicos da Água/análise , Brânquias/metabolismo
2.
Clin Exp Dermatol ; 48(3): 218-224, 2023 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-36763733

RESUMO

BACKGROUND: Elevated rates of eczema and skin infections in Canadian First Nation (FN) communities are of concern to families, community leaders and healthcare professionals. AIM: To determine whether skin morbidity was associated with indoor environmental quality factors in Canadian FN children living in remote communities. METHODS: We quantified indoor environmental quality (IEQ) in the homes of FN children aged < 4 years of age living in four remote communities in the Sioux Lookout region of Northwestern Ontario, Canada. We conducted a quantitative housing inspection, including measuring surface area of mould (SAM), and monitored air quality for 5 days in each home, including carbon dioxide and relative humidity and quantified endotoxin in settled floor dust. We reviewed the medical charts of participating children for skin conditions and administered a health questionnaire. Relationships between IEQ and skin infections or eczema were evaluated using multivariable regression. RESULTS: In total, 98 children were included in the descriptive analyses, of whom 86 had complete data and were evaluated in multivariate analyses for dermatological outcomes (mean age 1.6 years). Of these 86 children, 55% had made ≥ 1 visits to the local health centre (HC) for skin and soft tissue infections and 25.5% for eczema. Unexpectedly, annualized eczema visits were inversely associated with SAM (RR = 0.14; 95% CI 0.01-0.93). There was a trend suggesting an inverse relationship between endotoxin and HC encounters for eczema and skin and soft tissue infections. CONCLUSION: Skin infections were common in this population of FN children. IEQ did not appear to be associated with skin infections or eczema. Mould exposure appeared to be inversely associated with HC encounters for eczema, possibly related to complex microorganism-host interactions occurring early in life.


Assuntos
Eczema , Dermatopatias Infecciosas , Infecções dos Tecidos Moles , Pré-Escolar , Humanos , Lactente , Endotoxinas , Fungos , Qualidade Habitacional , Morbidade , Ontário
3.
J Adolesc ; 95(1): 157-169, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36379902

RESUMO

INTRODUCTION: The World Health Organisation recommends that children and adolescents engage in at least 60 min of moderate-to-vigorous physical activity per day. Previous research has shown that physical activity is related to other constructs such as mental well-being and self-rated health. This study examined the inter-relatedness of these constructs in Northern Irish school children. METHODS: This study was a secondary analysis of data gathered as part of a longitudinal study. Participants were n = 1791 adolescents in their final years of secondary (high) school (age range 15-18; female = 64.6%). Data were gathered on three occasions over a 2-year period on self-rated health, physical activity, mental well-being, heavy episodic drinking, lifetime smoking, psychological and somatic symptoms, as well as a range of socio-demographic measures. RESULTS: Descriptive results showed extremely low levels of self-reported physical activity within the past week, with <6% of the sample attaining the WHO guidelines at each wave of data collection. There were significant gender differences on all variables assessed. Results further showed a small-sized relationship (statistically significant for girls only) between physical activity and mental well-being. There was also a small-sized relationship between physical activity and self-rated health. Notably, effect sizes for the relationship between self-rated health and both physical activity and mental well-being were higher. In terms of socio-demographic predictors of lower physical activity, being female, lifetime cigarette smoking, and higher somatic and psychological symptoms were all statistically significant factors. CONCLUSION: Self-rated health emerged as the most important predictor of physical activity among adolescents.


Assuntos
Nível de Saúde , Saúde Mental , Adolescente , Humanos , Feminino , Criança , Masculino , Estudos Longitudinais , Exercício Físico , Instituições Acadêmicas
4.
CMAJ ; 194(3): E80-E88, 2022 01 24.
Artigo em Inglês | MEDLINE | ID: mdl-35074834

RESUMO

BACKGROUND: Rates of lower respiratory tract infection (LRTI) among First Nations (FN) children living in Canada are elevated. We aimed to quantify indoor environmental quality (IEQ) in the homes of FN children in isolated communities and evaluate any associations with respiratory morbidity. METHODS: We performed a cross-sectional evaluation of 98 FN children (81 with complete data) aged 3 years or younger, living in 4 FN communities in the Sioux Lookout region of Northern Ontario. We performed medical chart reviews and administered questionnaires. We performed a housing inspection, including quantifying the interior surface area of mould (SAM). We monitored air quality for 5 days in each home and quantified the contaminant loading of settled floor dust, including endotoxin. We analyzed associations between IEQ variables and respiratory conditions using univariable and multivariable analyses. RESULTS: Participants had a mean age of 1.6 years and 21% had been admitted to hospital for respiratory infections before age 2 years. Houses were generally crowded (mean occupancy 6.6 [standard deviation 2.6, range 3-17] people per house). Serious housing concerns were frequent, including a lack of functioning controlled ventilation. The mean SAM in the occupied space was 0.2 m2. In multivariable modelling, there was evidence of an association of LRTI with log endotoxin (p = 0.07) and age (p = 0.02), and for upper respiratory tract infections, with SAM (p = 0.07) and age (p = 0.03). Wheeze with colds was associated with log endotoxin (p = 0.03) and age (p = 0.04). INTERPRETATION: We observed poor housing conditions and an association between endotoxin and wheezing in young FN children living in Northern Ontario.


Assuntos
Poluição do Ar em Ambientes Fechados , Qualidade Habitacional , Canadenses Indígenas , Infecções Respiratórias/etnologia , Infecções Respiratórias/epidemiologia , População Rural/estatística & dados numéricos , Pré-Escolar , Estudos Transversais , Poeira , Endotoxinas/efeitos adversos , Feminino , Fungos , Humanos , Masculino , Ontário/epidemiologia , Ventilação
5.
Acta Psychiatr Scand ; 143(6): 472-486, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33604893

RESUMO

OBJECTIVE: To systematically review evidence for an association between parental death in childhood, and the subsequent development of an anxiety, affective or psychotic disorder. METHODS: Electronic databases (Scopus, Medline (for Ovid), EMBASE and PsychINFO) were searched for peer-reviewed, cohort studies in the English language. Meta-analyses were performed for studies reporting hazard ratios, incidence rate ratios and odds ratios. Two studies reported risk ratios, and these were included in an overall pool of odds, risk and incidence rate ratios. Sensitivity analyses were performed (removal of one study at a time) for all meta-analyses, and study quality assessed using the Newcastle-Ottawa Scale. RESULTS: Fifteen studies were retained, and where required, data were averaged in advance of pooling. Significant results were observed in studies reporting hazard ratios (k = 4, 1.48 [95% CI = 1.32-1.66]), incidence rate ratios (k = 3, 1.37 [95% CI = 1.01-1.85]), but not odds ratios (k = 4, 0.87 [95% CI = 0.72, 1.05]). However, the overall pooled effect (using odds, incidence rate and risk ratios) was statistically significant (k = 9, 1.22 [95% CI = 1.03-1.44]). CONCLUSION: Overall, the evidence suggests that there is a positive association between the death of a parent before age 18, and the subsequent development of an anxiety, affective or psychotic disorder. The lack of a significant pooled effect in studies reporting results as odds ratios is likely an artefact of study design. LIMITATIONS: Data were clustered in four countries making generalizability uncertain. Studies adjusted for a variety of possible confounders, and follow-up after death varied considerably.


Assuntos
Transtornos Mentais , Morte Parental , Transtornos Psicóticos , Adolescente , Estudos de Coortes , Humanos , Razão de Chances , Transtornos Psicóticos/epidemiologia
6.
Acta Psychiatr Scand ; 143(3): 189-205, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33315268

RESUMO

OBJECTIVE: To systematically review evidence for the association between trauma experienced in childhood or adolescence, and the subsequent experience of affective or psychotic mental disorders in adulthood. METHODS: Electronic databases (Scopus, Medline (for Ovid), EMBASE and PsychINFO) were searched for peer-reviewed, longitudinal cohort studies in the English language examining child or adolescent exposure to trauma, and adult-diagnosed depression, anxiety, psychotic disorder or bipolar disorder. A total of 23 manuscripts were retained. RESULTS: Results revealed a significant association between the following childhood exposures and adult mental disorder: bullying (victimhood, perpetration and frequency); emotional abuse; physical neglect; parental loss; and general maltreatment (unspecified and/or multiple trauma exposure). There was some evidence of a dose-response relationship with those exposed to multiple forms of maltreatment having more than three times the odds of developing a mental disorder (Odds ratio = 3.11, 95% CI = 1.36-7.14). There was no significant association found between physical or sexual abuse and adult mental disorder; however, this is likely an artefact of how these adversities were assessed. CONCLUSION: There is strong evidence of an association between childhood trauma and later mental illness. This association is particularly evident for exposure to bullying, emotional abuse, maltreatment and parental loss. The evidence suggests that childhood and adolescence are an important time for risk for later mental illness, and an important period in which to focus intervention strategies.


Assuntos
Sobreviventes Adultos de Maus-Tratos Infantis , Maus-Tratos Infantis , Transtornos Psicóticos , Adolescente , Adulto , Transtornos de Ansiedade , Criança , Estudos de Coortes , Humanos , Estudos Longitudinais
7.
Prev Sci ; 22(4): 443-451, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33433820

RESUMO

Although fewer adolescents are consuming alcohol than was the case in previous decades, those who are consuming alcohol are still exposed to alcohol-related harms. While the evidence for the effectiveness of universal, school-based interventions is limited, a recent cluster randomised controlled trial (The STAMPP Trial) reported a significant effect at 10 months post-intervention of a combined classroom/parental intervention on heavy episodic drinking (HED) in the previous 30 days, but no significant effect on the number of self-reported alcohol-related harms (ARH) experienced in the previous 6 months. This follow-up study sought to examine intervention effects 24 months after delivery of the intervention (+ 57 months from baseline, or + 34 months post-intervention). Participants were 5029 high school students in STAMPP (38% of 12,738 pupils originally randomised into the trial), from 87 schools (82.3% of schools recruited in the original STAMPP trial). Outcomes were assessed using two-level random intercepts models (logistic regression for HED and negative binomial for number of ARH). Results of the present study show that the intervention effect for HED deteriorated over the following 2 years (OR declined from 0.60 to 0.97), and there was still no difference in ARH. This was due to an increase in the prevalence of intervention students' HED rather than a reduction in prevalence in control students. Results are discussed in the context of prevention initiatives.


Assuntos
Serviços de Saúde Escolar , Consumo de Álcool por Menores/prevenção & controle , Adolescente , Seguimentos , Humanos , Pais , Estudantes
8.
J Pers Assess ; 103(5): 576-587, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-32990472

RESUMO

The exponential growth in studies demonstrating the utility of temporal psychology has been accompanied by many studies criticizing the psychometric properties of many of its assessment measures. The Adolescent (and Adult) Time Inventory-Time Attitudes Scale (AATI-TA) has been relatively immune to these criticisms. Given the increase in the use of this particular measure, we undertook a comprehensive review of studies assessing the psychometric validity and internal consistency of the AATI-TA. Computerized searches were conducted in Scopus, PsycINFO, and EMBASE databases, with 19 manuscripts ultimately retained, and data from a total of 29 samples analyzed. Results revealed that at a broad level, these analyses supported both the psychometric validity, and internal consistency of AATI-TA scores, with some minor issues identified with the Future Negative dimension. Meta-regression analyses revealed some small-sized but significant effects for age, language, and location on RMSEA, alpha values, and mean scores. However, these did not survive the Benjamini-Hochberg correction. Observed heterogeneity among studies has implications for any future creation of scale norms. Future directions for research include an exploration of the readability and appropriateness of Future Negative items, temporal stability of scores, and more psychometric studies with adult samples.


Assuntos
Atitude , Idioma , Adolescente , Adulto , Humanos , Psicometria , Reprodutibilidade dos Testes , Inquéritos e Questionários
9.
Int J Psychol ; 55(6): 901-906, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31985044

RESUMO

Using data from a longitudinal study, the present study employed a latent class mover-stayer analytical strategy to examine both the cross-sectional and longitudinal (+33 months) relationship between membership of stress classes, and subjective life expectancy. Participants were from 21 High schools in Scotland and Northern Ireland. Data were collected in the first year of High school (mean age = 12.5 years), and at +33 months (fourth year, or school year 11). Sample 1 consisted of 1171 adolescents (40.82% females, 2.56% unreported) in Northern Ireland. Sample 2 consisted of 1059 adolescents (52.79% females, 1.32% unreported) in Scotland. Adolescents with the lowest levels of stress projected the highest subjective life expectancy scores. Longitudinal analyses were jumbled and not in keeping with cross-sectional results. More research may be needed on the trajectory of subjective life expectancy over time before it can be depended upon as a reliable outcome variable in adolescent development.


Assuntos
Comportamento do Adolescente/psicologia , Desenvolvimento do Adolescente/fisiologia , Expectativa de Vida/tendências , Estresse Psicológico/psicologia , Adolescente , Criança , Estudos Transversais , Feminino , Humanos , Estudos Longitudinais , Masculino
10.
J Res Adolesc ; 29(4): 814-821, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-30010228

RESUMO

This study examined the parallel mediational processes between sensation seeking and parental rules on alcohol, in the emergence of heavy episodic drinking (HED) in adolescents. Data were drawn from a U.K. clustered randomized control trial (control arm only, N ≈ 6,300, Mage at baseline = 12.5). Using parallel process latent growth curve analysis, stricter parental rules at baseline were found to be associated with greater declines in sensation seeking over time and a lower risk of HED at follow-up (+33 months). Higher initial levels of sensation seeking predicted a faster relaxation of parental rules and a greater risk of HED. By maintaining strict rules about alcohol, parents may promote a positive reduction in sensation seeking and a lower risk of HED.


Assuntos
Comportamento do Adolescente/psicologia , Intoxicação Alcoólica/epidemiologia , Poder Familiar , Pais/psicologia , Consumo de Álcool por Menores/psicologia , Adolescente , Consumo de Bebidas Alcoólicas/psicologia , Intoxicação Alcoólica/psicologia , Análise por Conglomerados , Feminino , Humanos , Masculino , Modelos Psicológicos , Relações Pais-Filho , Poder Familiar/psicologia , Fatores de Risco , Consumo de Álcool por Menores/prevenção & controle , Consumo de Álcool por Menores/tendências , Reino Unido/epidemiologia
11.
Prev Sci ; 20(6): 844-851, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-30637672

RESUMO

The aim of this study was to examine the extent of recanting (inconsistencies in reporting of lifetime alcohol use) and its impact on the assessment of primary outcomes within a large-scale alcohol prevention trial. One hundred and five post-primary schools in were randomised to receive either the intervention or education as normal. Participants (N = 12,738) were secondary school students in year 8/S1 (mean age 12.5) at baseline. Self-report questionnaires were administered at baseline (T0) and at T1 (+ 12 months post-baseline), T2 (+ 24 months) and T3 (+ 33 months). The primary outcomes were (i) heavy episodic drinking (consumption of ≥ 6 units in a single episode in the previous 30 days for males and ≥ 4.5 units for females) assessed at T3 and (ii) the number of alcohol-related harms experienced in the last 6 months assessed at T3. Recanting was defined as a negative report of lifetime alcohol consumption that contradicted a prior positive report. Between T1 and T3, 9.9% of students recanted earlier alcohol consumption. Recanting ranged from 4.5 to 5.3% across individual data sweeps. While recanting was significantly associated (negatively) with both primary outcomes, the difference in the rate of recanting across trial arms was small, and adjusting for recanting within the primary outcome models did not impact on the primary outcome effects. Males were observed to recant at a greater rate than females, with a borderline small-sized effect (V = .09). While differential rates of recanting have the potential to undermine the analysis of prevention trial outcomes, recanting is easy to identify and control for within trial primary outcome analyses. Adjusting for recanting should be considered as an additional sensitivity test within prevention trials.Trial Registration: ISRCTN47028486 ( http://www.isrctn.com/ISRCTN47028486 ). The date of trial registration was 23/09/2011, and school recruitment began 01/11/2011.


Assuntos
Consumo de Bebidas Alcoólicas/epidemiologia , Estudantes , Adolescente , Criança , Análise por Conglomerados , Feminino , Humanos , Masculino , Autorrelato , Reino Unido/epidemiologia
12.
J Adolesc ; 70: 53-61, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30529843

RESUMO

INTRODUCTION: Adolescence is a period of intense physical, biological, and psychological change, and this can result in feelings of stress. We examined the development of stress in early adolescence, and further, how that development impacted on both alcohol-use behaviours and utilisation of government-provided services. METHODS: We used a shortened, 24-item version of the Adolescent Stress Questionnaire (ASQ) to account for stress, and applied latent transition analysis to examine longitudinal change. Participants were 2230 school children (Mage = 12.5 years at time one) in Northern Irish and Scottish schools who completed a battery of questionnaires 33 months apart. RESULTS: We identified three stress profiles at baseline and 33 months: (a) High Stress, (b) Typical Stress, and (c) Low Stress. Stress profiles were shown to be associated with, and predict, a theoretically consistent set of outcomes, where adolescents who experienced high levels of stress also suffered from both problematic alcohol behaviours and harms, and utilised services. CONCLUSIONS: Future studies are recommended to include more exploration into the usefulness of a multivariate conceptualising of ASQ-S scores.


Assuntos
Consumo de Bebidas Alcoólicas/psicologia , Estresse Psicológico/psicologia , Adolescente , Consumo de Bebidas Alcoólicas/epidemiologia , Criança , Estudos Transversais , Feminino , Humanos , Análise de Classes Latentes , Estudos Longitudinais , Masculino , Irlanda do Norte/epidemiologia , Serviços de Saúde Escolar/estatística & dados numéricos , Escócia/epidemiologia , Inquéritos e Questionários
13.
Int J Psychol ; 54(6): 775-785, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30206944

RESUMO

Time perspective research assesses the degree to which thoughts and feelings about the past, present and future influence behaviour, and a balanced time perspective profile has been posited as being ideal. Although this area of research has seen a move towards person-centred analyses, using either cluster analyses or a deviation from balanced time perspective (DBTP) approach, there are a number of theoretical and methodological issues that must be addressed. Using data from diverse samples in four countries, the present study used both cluster analyses and the DBTP approach to assess how cluster membership and DBTP scores related to a range of health and well-being outcomes. As in previous studies, a balanced profile only emerged once in cluster analyses, and positive-oriented profiles were associated with optimal outcomes. The study also found evidence of a relationship between DBTP scores and scores on well-being indicators. However, results gained after manipulating the DBTP equation in two different ways again indicated that higher than expected positive past and present or past and future scores were responsible for the positive outcomes. As such, these findings raise concerns regarding the use of the DBTP construct within clinical settings.


Assuntos
Atenção à Saúde/métodos , Empirismo , Percepção do Tempo/fisiologia , Adulto , Feminino , Humanos , Masculino
14.
J Adolesc ; 62: 27-37, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-29144980

RESUMO

Increasingly, the study of temporal psychology is moving away from bivariate analyses towards person-centered analyses, which simultaneously account for scores on past, present and future dimensions. However, longitudinal studies are lacking. This study builds on a developing literature by examining the 24-month relationship between time attitudes and criterion variables. Four latent profiles called Positive, Ambivalent, Moderately Negative, and Negative, were identified. Results showed that time attitude profiles were generally unstable across the first three years of high school. However, those who stayed in the Positive profile developed higher self-efficacy in all domains. Transitioning to the Positive profile was associated with positive outcomes, whereas other transitions among profiles were associated with negative outcomes. There were small-sized, socio-demographic effects such that living in Northern Ireland (compared to Scotland), being male, and not being entitled to a free school meal, were all related to membership of, or transition to, the Positive profile.


Assuntos
Comportamento do Adolescente/psicologia , Atitude , Autoeficácia , Percepção do Tempo , Adolescente , Afeto , Feminino , Humanos , Estudos Longitudinais , Masculino , Irlanda do Norte , Escócia , Estudantes/psicologia , Tempo
15.
J Adolesc ; 69: 44-51, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30227345

RESUMO

PURPOSE: Time attitudes refer to individuals' feelings about the past, present, and future, and an increasing number of cross-sectional studies have demonstrated that positive time attitudes are significantly related to better health and well-being. We investigated time attitude profile membership and associated transitions longitudinally in United Kingdom-based adolescents, and assessed the relationship between time attitude profile development on health behaviours at + 21 months after the data collection involving time attitudes. METHODS: Participants were high school students (N = 1306; 41.8% female, Mage 12.5-14.5 years [waves 1-3]). The Adolescent and Adult Time Inventory - Time Attitudes Scale was employed to identify profiles, and a mover-stayer latent transition analysis was employed to examine developmental changes. Data were also gathered on sensation seeking, and a range of health indicators were assessed: Past week frequency of physical exercise, self-rated health, subjective life expectancy, lifetime cannabis and smoking, and dental attendance. RESULTS: Staying in a positive time attitude profile was related to higher subjective life expectancy, and less frequent use of cannabis and cigarettes (1.00 ≤ d ≤ 4.00). Further, moving to a positive profile predicted healthier outcomes for most health measures used. CONCLUSIONS: Notwithstanding the limitation that health outcomes in the present study were distal, the present study bolstered a developing cross-sectional literature supporting the association between positive time attitudes and better health and well-being outcomes. Future longitudinal studies which assess measures concurrently are required.


Assuntos
Comportamento do Adolescente/psicologia , Atitude Frente a Saúde , Comportamentos Relacionados com a Saúde , Adolescente , Estudos Transversais , Feminino , Humanos , Estudos Longitudinais , Masculino , Estudantes/psicologia , Inquéritos e Questionários , Reino Unido
16.
Subst Use Misuse ; 52(6): 734-741, 2017 05 12.
Artigo em Inglês | MEDLINE | ID: mdl-28156179

RESUMO

Previous studies using bivariate or correlational analyses have established a relationship between alcohol use, symptoms of anxiety and depression, and scores on a range of temporal psychology measures. Temporal psychology measures variously assess the cognitive or affective (or in some cases, both) engagement with the past, present, and future. Although developed and validated in adolescents, recent research has suggested that the Time Attitudes Scale is internally consistent and reliable in adults also. The present study is the first to apply a person-centered approach to assessing the relationship between scores on the Time Attitudes Scale and symptoms of anxiety, depression, and alcohol-related problems in adults. Participants were recruited from a University in England. Results support the validity and internal consistency of the Time Attitudes Scale. Meaningful time attitudes profiles emerged, however, taking the sample size into account, the only substantive finding showed that those with a negative time attitudes profile scored higher on depressive symptomatology than those with a positive profile. While elsewhere, Zimbardo Time Perspective Inventory scores have been shown to be meaningfully related to anxiety, depression and alcohol use, the present study questions the degree to which the affective dimension of temporal psychology is driving that relationship.


Assuntos
Alcoolismo/psicologia , Ansiedade/psicologia , Depressão/psicologia , Adolescente , Adulto , Idoso , Atitude Frente a Saúde , Feminino , Previsões , Humanos , Masculino , Pessoa de Meia-Idade , Escalas de Graduação Psiquiátrica , Inquéritos e Questionários , Fatores de Tempo , Universidades/estatística & dados numéricos , Adulto Jovem
17.
Neuroimage ; 124(Pt B): 1093-1096, 2016 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-26143202

RESUMO

XNAT Central is a publicly accessible medical imaging data repository based on the XNAT open-source imaging informatics platform. It hosts a wide variety of research imaging data sets. The primary motivation for creating XNAT Central was to provide a central repository to host and provide access to a wide variety of neuroimaging data. In this capacity, XNAT Central hosts a number of data sets from research labs and investigative efforts from around the world, including the OASIS Brains imaging studies, the NUSDAST study of schizophrenia, and more. Over time, XNAT Central has expanded to include imaging data from many different fields of research, including oncology, orthopedics, cardiology, and animal studies, but continues to emphasize neuroimaging data. Through the use of XNAT's DICOM metadata extraction capabilities, XNAT Central provides a searchable repository of imaging data that can be referenced by groups, labs, or individuals working in many different areas of research. The future development of XNAT Central will be geared towards greater ease of use as a reference library of heterogeneous neuroimaging data and associated synthetic data. It will also become a tool for making data available supporting published research and academic articles.


Assuntos
Disseminação de Informação , Neuroimagem , Acesso à Informação , Encéfalo/anatomia & histologia , Encéfalo/patologia , Bases de Dados Factuais , Humanos , Sistemas de Informação , Informática Médica , Esquizofrenia/patologia
18.
Neuroimage ; 124(Pt B): 1102-1107, 2016 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-25934470

RESUMO

ConnectomeDB is a database for housing and disseminating data about human brain structure, function, and connectivity, along with associated behavioral and demographic data. It is the main archive and dissemination platform for data collected under the WU-Minn consortium Human Connectome Project. Additional connectome-style study data is and will be made available in the database under current and future projects, including the Connectome Coordination Facility. The database currently includes multiple modalities of magnetic resonance imaging (MRI) and magnetoencephalograpy (MEG) data along with associated behavioral data. MRI modalities include structural, task, resting state and diffusion. MEG modalities include resting state and task. Imaging data includes unprocessed, minimally preprocessed and analysis data. Imaging data and much of the behavioral data are publicly available, subject to acceptance of data use terms, while access to some sensitive behavioral data is restricted to qualified investigators under a more stringent set of terms. ConnectomeDB is the public side of the WU-Minn HCP database platform. As such, it is geared towards public distribution, with a web-based user interface designed to guide users to the optimal set of data for their needs and a robust backend mechanism based on the commercial Aspera fasp service to enable high speed downloads. HCP data is also available via direct shipment of hard drives and Amazon S3.


Assuntos
Encéfalo/anatomia & histologia , Encéfalo/fisiologia , Conectoma , Bases de Dados Factuais , Disseminação de Informação/métodos , Acesso à Informação , Comportamento , Mapeamento Encefálico , Humanos , Internet , Imageamento por Ressonância Magnética , Magnetoencefalografia , Neuroimagem , Controle de Qualidade
19.
PLoS Genet ; 9(2): e1003241, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23408896

RESUMO

Based on studies in mice and humans, cohesin loss from chromosomes during the period of protracted meiotic arrest appears to play a major role in chromosome segregation errors during female meiosis. In mice, mutations in meiosis-specific cohesin genes cause meiotic disturbances and infertility. However, the more clinically relevant situation, heterozygosity for mutations in these genes, has not been evaluated. We report here evidence from the mouse that partial loss of gene function for either Smc1b or Rec8 causes perturbations in the formation of the synaptonemal complex (SC) and affects both synapsis and recombination between homologs during meiotic prophase. Importantly, these defects increase the frequency of chromosomally abnormal eggs in the adult female. These findings have important implications for humans: they suggest that women who carry mutations or variants that affect cohesin function have an elevated risk of aneuploid pregnancies and may even be at increased risk of transmitting structural chromosome abnormalities.


Assuntos
Proteínas de Ciclo Celular/genética , Proteínas Cromossômicas não Histona/genética , Segregação de Cromossomos/genética , Cromossomos , Meiose/genética , Animais , Proteínas de Ciclo Celular/metabolismo , Proteínas Cromossômicas não Histona/metabolismo , Pareamento Cromossômico/genética , Cromossomos/genética , Cromossomos/ultraestrutura , Feminino , Dosagem de Genes , Humanos , Camundongos , Mutação , Proteínas Nucleares/genética , Proteínas Nucleares/metabolismo , Fosfoproteínas/genética , Fosfoproteínas/metabolismo , Recombinação Genética , Complexo Sinaptonêmico/genética , Coesinas
20.
Eur Eat Disord Rev ; 24(3): 223-31, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-26621156

RESUMO

In a published 11-week, placebo-controlled trial, 50 and 70 mg/d lisdexamfetamine dimesylate (LDX), but not 30 mg/d LDX, significantly reduced binge eating days (primary endpoint) in adults with binge eating disorder (BED). This report provides descriptions of LDX effects on secondary endpoints (Binge Eating Scale [BES]; Three-Factor Eating Questionnaire [TFEQ]; Yale-Brown Obsessive Compulsive Scale modified for Binge Eating [Y-BOCS-BE]; and the Barratt Impulsiveness Scale, version 11 [BIS-11]) from that study. Week 11 least squares mean treatment differences favoured all LDX doses over placebo on the BES (p ≤ 0.03), TFEQ Disinhibition and Hunger subscales (all p < 0.05), and Y-BOCS-BE total, obsessive, and compulsive scales (all p ≤ 0.02) and on BIS-11 total score at 70 mg/d LDX (p = 0.015) and the TFEQ Cognitive Restraint subscale at 30 and 70 mg/d LDX (both p < 0.05). These findings indicate that LDX decreased global binge eating severity and obsessive-compulsive and impulsive features of BED in addition to binge eating days.


Assuntos
Transtorno da Compulsão Alimentar/tratamento farmacológico , Comportamento Alimentar/efeitos dos fármacos , Dimesilato de Lisdexanfetamina/farmacologia , Dimesilato de Lisdexanfetamina/uso terapêutico , Adolescente , Adulto , Bulimia/psicologia , Comportamento Compulsivo , Método Duplo-Cego , Feminino , Humanos , Comportamento Impulsivo/efeitos dos fármacos , Masculino , Pessoa de Meia-Idade , Comportamento Obsessivo , Índice de Gravidade de Doença , Inquéritos e Questionários , Resultado do Tratamento , Adulto Jovem
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