Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 17 de 17
Filtrar
1.
Body Image ; 51: 101752, 2024 Jun 11.
Artigo em Inglês | MEDLINE | ID: mdl-38865896

RESUMO

Although positive body image is associated with mental and physical health benefits, there is a relative dearth of research investigating the psychometric properties of commonly used measures of positive body image among Hispanic/Latina women in the United States. The current study explored the psychometric properties of the Body Appreciation Scale-2 (BAS-2; Tylka & Wood-Barcalow, 2015a) and the Functionality Appreciation Scale (FAS; Alleva et al., 2017) in undergraduate women. Altogether 565 undergraduates (n = 386 Hispanic/Latina; n = 179 non-Hispanic White [NHW]) completed the BAS-2, FAS, and demographic questionnaires. Confirmatory factor analysis (CFA) and measurement invariance testing across ethnicity was conducted on each measure. The CFA confirmed the 1-factor, 10-item model of the BAS-2 among Hispanic/Latina women but indicated a less than adequate model fit for the FAS which improved after correlating the residuals of items 6 and 7. Measurement invariance testing revealed evidence of partial scalar invariance of the BAS-2 and full invariance of the FAS across ethnicity. There were no significant mean differences between groups on the measures. These analyses indicate acceptable psychometric properties of the BAS-2 and FAS among Hispanic/Latina women. Nonetheless, they did suggest potentially meaningful group differences in how these items behaved, which warrant further exploration.

2.
Alcohol Clin Exp Res (Hoboken) ; 48(6): 1142-1154, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38658188

RESUMO

BACKGROUND: Drinking identity (the extent to which one links the self with drinking alcohol) is a unique risk factor for college students' hazardous drinking that is not directly targeted by existing interventions. We conducted a study that aimed to decrease drinking identity among college students with hazardous drinking. We adapted a writing task about the future self and tested whether three writing sessions could decrease drinking identity and change drinking. We also investigated whether two additional factors (writing perspective and inclusion of participants' social networks) would enhance task impact. The present study evaluated whether posited proximal cognitive and motivational outcomes (drinking identity, self-efficacy, readiness to change, and drinking intentions) changed immediately after each writing session. METHOD: The study is a randomized clinical trial in which hypotheses and analyses were pre-registered. Participants were 328 college students who met hazardous drinking criteria. The study had a 2 (narrative writing topic: low-risk drinker vs. reduced smartphone use) × 2 (writing perspective: first-person vs. non-first-person) × 2 (social network instruction: instructed to include vs. not) factorial design. Proximal outcomes were drinking identity, self-efficacy, readiness to change, and drinking intentions. The clinical outcome was alcohol consumption. Participants completed three laboratory sessions at weekly intervals that included the writing task and pre- and post-task assessments. RESULTS: Results were largely null, except that readiness to reduce drinking was higher in the low-risk drinker condition and increased over the lab sessions. Time effects indicated that reductions in drinking identity, drinking intentions, and alcohol consumption, and increases in self-efficacy were observed but did not change above and beyond control conditions. CONCLUSIONS: Findings indicate the need to strengthen the writing task and select a more appropriate control task to target proposed proximal outcomes. Future studies might try personalizing the task, evaluating its efficacy with individuals motivated to change their drinking, and using a control task that does not involve imagining a future self.

3.
Alcohol ; 116: 35-45, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-37858781

RESUMO

College student drinking is prevalent and costly to public and personal health, leading to calls to identify and target novel mechanisms of behavior change. We aimed to manipulate drinking identity (a cognitive risk factor for hazardous drinking) via three sessions of narrative writing about a future self. We tested whether writing could shift drinking identity and would be accompanied by changes in alcohol consumption and problems. Participants were college students meeting hazardous drinking criteria (N = 328; Mage = 20.15; 59% women, 40% men, 1% gender-diverse; 60% white; 23% Asian; 12% multiple races; 2% other racial groups; 8% identified as Hispanic/Latino/a/x). The study had a 2 [narrative writing topic: low-risk drinker vs. reduced smartphone use] × 2 [writing perspective: first person vs. non-first-person] × 2 [social network instruction: instructed to include vs. not] factorial design. Outcomes were drinking identity, drinking refusal self-efficacy, alcohol consumption, alcohol-related problems, and craving. Participants completed three writing sessions and online follow-up assessments at 2, 4, and 12 weeks. The study is a registered clinical trial; hypotheses and analyses were preregistered (https://osf.io/vy2ep/). Contrary to predictions, narrative writing about a future self as a low-risk drinker did not significantly impact outcomes. Null results extended to expected interactions with writing perspective and social network instructions. The narrative writing task did not shift drinking or alcohol-related outcomes. Future experimental work may benefit from greater flexibility in conceptualizing a future self, recruiting individuals interested in behavior change, and more sensitive measures of drinking identity.


Assuntos
Consumo de Álcool na Faculdade , Transtornos Relacionados ao Uso de Álcool , Adulto , Feminino , Humanos , Masculino , Adulto Jovem , Consumo de Bebidas Alcoólicas/psicologia , Consumo de Álcool na Faculdade/psicologia , Estudantes/psicologia , Universidades , Redação
4.
Clin Psychol Sci ; 11(1): 23-39, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36865994

RESUMO

Many college students reduce hazardous drinking (HD) following graduation without treatment. Identifying cognitive mechanisms facilitating this "natural" reduction in HD during this transition is crucial. We evaluated drinking identity as a potential mechanism and tested whether within-person changes in one's social network's drinking were linked to within-person changes in drinking identity and subsequent within-person changes in HD. A sample of 422 undergraduates reporting HD was followed from six months before until two years after graduation. Their drinking, drinking identity, and social networks were assessed online. Within-person changes in drinking identity did not mediate the relationship between within-person changes in social network drinking and personal HD, though significant positive between-person associations among all constructs were found. Instead, there was some evidence that within-person changes in drinking identity followed changes in HD, suggesting that drinking identity may function as a marker versus mechanism of "natural" HD reduction during transition out of college.

5.
Exp Clin Psychopharmacol ; 31(1): 116-126, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35201828

RESUMO

Indirect measures have been used to assess the strength of automatically activated, alcohol-related associations and their relation to hazardous drinking. However, little is known about the longitudinal contributions of between-person and within-person components of implicit alcohol associations (IAAs) to college students' hazardous drinking over time. This study examined how within- and between-person variability in three measures of IAA (drinking identity, alcohol approach, and alcohol excite) are related to hazardous drinking while controlling for their explicit, self-report counterparts. First- and second-year U.S. college students (N = 506; 57% female) completed web-based assessments once every 3 months up to eight assessments, which included IAA measures (Implicit Association Tests), explicit counterparts of the IAAs, and self-reported hazardous drinking (alcohol consumption, problems, and risk of alcohol use disorder). Bayesian generalized multilevel models were used to examine between- and within-person associations among IAA, their explicit counterparts, and hazardous drinking. Results showed that between persons, mean levels of all three IAAs were positively associated with hazardous drinking over time. Once their explicit, self-report counterparts were included, however, only drinking identity IAA remained significant. Within persons, increases in drinking identity IAA were associated with increases in subsequent hazardous drinking risk, even after controlling for its explicit counterpart. These results suggest the importance of disentangling and simultaneously investigating between- and within-person processes in IAAs. Although the between-person component of IAAs may play a larger role in the prediction of hazardous drinking, examining the within-person component of IAA, at least for drinking identity, also appears to be important. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Assuntos
Consumo de Álcool na Faculdade , Alcoolismo , Humanos , Feminino , Masculino , Teorema de Bayes , Consumo de Bebidas Alcoólicas , Estudantes , Universidades
6.
Eat Weight Disord ; 27(6): 2011-2018, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34850357

RESUMO

OBJECTIVE: American Indian/Alaska Native (AI/AN) people have historically been excluded from eating disorder research. Consequently, not much is known about the validity of eating disorder assessment measures in this group. The purpose of the current study was to examine the factor structure of a short measure for eating pathology, the seven-item Eating Disorder Examination Questionnaire (EDE-Q7), in AI/AN undergraduate women. Exploratory analyses examined the measurement invariance of the EDE-Q7 across AI/AN, White, and Latinx undergraduates. METHODS: A sample of 150 AI/AN undergraduate women completed the full EDE-Q (28 items) as part of two larger studies. The seven items comprising the EDE-Q7 were selected from the full measure to test the factor structure. Random samples of White and Latinx women of equal sample size were chosen from the larger studies to test measurement invariance. RESULTS: Confirmatory factor analyses found support for the EDE-Q7 factor structure in AI/AN undergraduate women, and scores were strongly positively correlated with the original EDE-Q global scale and disordered eating behaviors. Exploratory analyses found support for the measurement invariance of the EDE-Q7 across AI/AN, White, and Latinx women. One-way ANOVAs showed no significant racial and ethnic differences on the EDE-Q7. DISCUSSION: The current study found psychometric support for the EDE-Q7 in AI/AN undergraduate women and provided preliminary evidence that the EDE-Q7 can be meaningfully compared across AI/AN, White, and Latinx undergraduate women. Further research should continue to investigate the EDE-Q7 and other eating disorder measures in AI/AN and other historically excluded groups. LEVEL OF EVIDENCE: V, cross-sectional descriptive study.


Assuntos
Transtornos da Alimentação e da Ingestão de Alimentos , Estudos Transversais , Transtornos da Alimentação e da Ingestão de Alimentos/diagnóstico , Feminino , Humanos , Psicometria , Reprodutibilidade dos Testes , Inquéritos e Questionários , Indígena Americano ou Nativo do Alasca
7.
Addict Behav ; 116: 106796, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33453585

RESUMO

Cross-sectional research has demonstrated that endorsing, or acknowledging, and frequently thinking about having a drinking identity are uniquely and positively associated with alcohol consumption and risk for hazardous drinking. In the current investigation, we evaluated whether these facets of drinking identity indicated a latent drinking identity variable. We also investigated whether greater identification with drinking predicted subsequent increases in alcohol consumption and risk for hazardous drinking, and whether higher levels of these drinking behavior variables predicted subsequent increases in identification with drinking. Data were collected from participants (N = 422) near their graduation from college and then again eight months later. Drinking identity endorsement and drinking identity thought frequency were positive indicators of a latent drinking identity variable. Identification with drinking was concurrently, positively associated with both alcohol consumption and risk for hazardous drinking at both time points. Greater identification with drinking at the first assessment predicted subsequent increases in alcohol consumption and risk for hazardous drinking. Surprisingly, the drinking behavior variables did not prospectively predict changes in identification with drinking. These findings support an expanded conceptualization of drinking identity, provide further evidence that greater identification with drinking prospectively predicts more drinking behaviors, and suggest that drinking identity should be considered in interventions to reduce hazardous drinking.


Assuntos
Consumo de Bebidas Alcoólicas , Universidades , Consumo de Bebidas Alcoólicas/epidemiologia , Estudos Transversais , Humanos
8.
Addict Behav ; 107: 106413, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32283446

RESUMO

Implicit measures of alcohol-related associations or implicit alcohol associations are associated with drinking outcomes over time and can be understood as vulnerability markers for problem drinking. Longitudinal research remains rare, leaving open questions about how implicit alcohol associations themselves change over time and what factors moderate that change. We examined these questions with data from a larger study of first and second year U.S. college students. We investigated how these implicit alcohol associations change over time and potential moderators of those changes (gender, lifetime drinking history, family history of problem drinking, and class standing). A sample of 506 students (57% women) completed baseline demographic measures and implicit measures (variants of the Implicit Association Test [IAT]) assessing associations with drinking and the self [drinking identity], alcohol and excite [alcohol-excite], and alcohol and approach [alcohol-approach]). IATs were completed at 3-month intervals for a total of 8 assessments. Results indicated small, but significant, change in alcohol-excite and alcohol-approach IAT scores over time, and mixed findings for hypothesized moderators. Drinking history moderated change in drinking identity IAT scores, with increases over time among individuals with no history of drinking or no history of intoxication and decreases among individuals with a history of intoxication. Gender moderated change in alcohol-excite IAT scores with greater change among women (vs. men). No significant moderators of change in alcohol approach IAT scores were found. Results point to the importance of evaluating implicit associations' trajectories and identifying additional factors that predict those trajectories and concomitant vulnerability to problem drinking.


Assuntos
Consumo de Bebidas Alcoólicas , Alcoolismo , Consumo de Bebidas Alcoólicas/epidemiologia , Etanol , Feminino , Humanos , Masculino , Estudantes
9.
Alcohol Clin Exp Res ; 44(1): 233-243, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31709565

RESUMO

BACKGROUND: Explicit (self-report) and implicit (indirect) measures of identification with drinking alcohol-drinking identity-are associated with drinking outcomes cross-sectionally and longitudinally. A key next step is to identify moderators. The current study evaluated a promising moderator: mindsets of alcoholism. Believing people can change (growth mindset) is associated with adaptive outcomes in domains such as mental health, but research is scant regarding mindsets related to problematic drinking. We evaluated whether individuals' alcoholism mindsets moderated the drinking identity to drinking relation as part of a larger, longitudinal web-based study of heavy drinkers. METHODS: A total of 422 US college graduates (59% women) who were heavy drinkers completed measures assessing drinking identity, mindsets, and drinking outcomes (consumption, problems, and risk of alcohol use disorder). Drinking outcomes were assessed at 2 subsequent assessments occurring 4 and 8 months after the initial assessment. RESULTS: Drinking identity was positively associated with drinking outcomes, and drinking outcomes reduced following college graduation. Alcoholism mindsets were significantly and negatively correlated with all drinking outcomes. Mindsets were only conditionally associated with drinking behaviors over time in models that evaluated mindsets, drinking identity measures, and their interaction. Mindsets moderated the relationship between drinking identity and changes in drinking behaviors, but the relation was specific to explicit drinking identity and consumption. Among participants with stronger drinking identity, those who had stronger (vs. weaker) growth mindsets reported reduction in consumption over time. CONCLUSIONS: Growth mindsets of alcoholism appear adaptive for college graduate heavy drinkers with a stronger drinking identity. Mindsets are amenable to interventions; targeting them may be useful in heavy-drinking college graduates.


Assuntos
Consumo de Álcool na Faculdade/psicologia , Intoxicação Alcoólica/psicologia , Alcoolismo/psicologia , Pensamento , Adulto , Intoxicação Alcoólica/epidemiologia , Alcoolismo/epidemiologia , Estudos Transversais , Feminino , Humanos , Estudos Longitudinais , Masculino , Pensamento/fisiologia , Fatores de Tempo , Adulto Jovem
10.
PLoS One ; 14(1): e0209940, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30625204

RESUMO

The high levels of problematic drinking in college students make clear the need for improvement in the prediction of problematic drinking. We conducted a laboratory-based experiment that investigated whether implicit measures of alcohol-related associations, self-control, and their interaction predicted drinking. Although a few studies have evaluated self-control as a moderator of the relationship between implicit measures of alcohol-related associations and drinking, this study extended that work by using a previously-validated manipulation that included a more (vs. less) cognitively demanding task and incentive to restrain drinking and by evaluating multiple validated measures of alcohol-related associations. Experimental condition was expected to moderate the relationship between implicit measures of alcohol-related associations and drinking, with a more positive relationship between alcohol-related associations and drinking among participants who completed the more (vs. less) cognitive demanding task. Secondary aims were to evaluate how individual differences in control factors (implicit theories about willpower and working memory capacity) might further moderate those relationships. One hundred and five U.S. undergraduate heavy episodic drinkers completed baseline measures of: drinking patterns, three Implicit Association Tests (evaluating drinking identity, alcohol excite, alcohol approach associations) and their explicit measure counterparts, implicit theories about willpower, and working memory capacity. Participants were randomized to complete a task that was more (vs. less) cognitively demanding and were given an incentive to restrain their drinking. They then completed an alcohol taste test. Results were not consistent with expectations. Despite using a previously validated manipulation, there was no evidence that one condition was more demanding than the other, and none of the predicted interactions reached statistical significance. The findings raise questions about the relation between self-control, implicit measures of alcohol-related associations, and drinking, as well as the conditions under which implicit measures of alcohol-related associations predict alcohol consumption in the laboratory.


Assuntos
Consumo de Álcool na Faculdade/psicologia , Consumo de Bebidas Alcoólicas/psicologia , Autocontrole , Adulto , Consumo de Bebidas Alcoólicas/epidemiologia , Feminino , Humanos , Masculino , Estudantes/psicologia , Estudantes/estatística & dados numéricos , Paladar , Adulto Jovem
11.
Clin Psychol Rev ; 69: 83-96, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-29680185

RESUMO

There is a tremendous global and national (US) burden associated with alcohol misuse and alcohol use disorder (AUD). Further, of the mental health disorders, AUD has the widest treatment gap. Thus, there is a critical need for improved understanding of the etiology, maintenance, and treatment of AUD. The application of cognitive science to the study of AUD has a longstanding history of attempting to meet this need. In this selective review, we identified and focused on four domains of recent (i.e., in the last decade) applications of cognitive science to the study of AUD: implicit cognitive biases, executive function, behavioral economic approaches to alcohol decision making, and functional connectivity neuroimaging. We highlighted advances within these four domains and considered them in the context of dual process models of addiction, which focus on the contribution and interplay of two complementary neurocognitive systems (impulsive and control systems). Findings across the domains were generally consistent with dual process models. They also suggest the need for further model refinements, including integrating behavioral economic approaches and findings from functional connectivity neuroimaging studies. Research evaluating candidate interventions associated with these domains is emergent but promising, suggesting important directions for future research.


Assuntos
Alcoolismo/fisiopatologia , Córtex Cerebral/fisiopatologia , Disfunção Cognitiva/fisiopatologia , Ciência Cognitiva , Conectoma , Função Executiva/fisiologia , Modelos Biológicos , Rede Nervosa/fisiopatologia , Alcoolismo/diagnóstico por imagem , Córtex Cerebral/diagnóstico por imagem , Disfunção Cognitiva/diagnóstico por imagem , Humanos , Rede Nervosa/diagnóstico por imagem
12.
Addict Behav ; 89: 256-262, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30368029

RESUMO

Problematic alcohol consumption is elevated among those who identify (i.e., associate themselves) with drinking. We extended prior research on drinking identity by considering two dimensions of investment in identity - i.e., mental resources allocated to that identity that may motivate the pursuit of identity-related goals. We considered drinking identity importance (i.e., how important one considers it to be) and drinking identity thought frequency (i.e., how frequently one thinks about it). We investigated these dimensions from two perspectives: an absolute perspective (i.e., investment in drinking identity irrespective of other identities) and a relative perspective (i.e., investment in drinking identity compared to identities associated with other life domains [education, well-being, and personal relationships]). We aimed to evaluate whether these investment dimensions were positively associated with alcohol consumption and risk of alcohol use disorder either in interaction with or in addition to endorsement of drinking identity. College students (N = 521) who were screened for exhibiting hazardous drinking completed self-report measures of alcohol consumption, risk of alcohol use disorder, and drinking identity endorsement and investment. Controlling for gender and drinking identity endorsement, absolute and relative drinking identity thought frequency were uniquely and positively associated with alcohol consumption and risk of alcohol use disorder. Neither absolute nor relative importance of identification with drinking uniquely predicted outcomes. Drinking identity investment, as signaled by absolute and relative frequency of thought related to identification with drinking, may be an additional risk factor and/or clinical target for alcohol consumption and risk of alcohol use disorder.


Assuntos
Consumo de Álcool na Faculdade/psicologia , Alcoolismo/etiologia , Autoimagem , Identificação Social , Adolescente , Feminino , Humanos , Relações Interpessoais , Masculino , Noroeste dos Estados Unidos , Estudantes/psicologia
13.
Alcohol Alcohol ; 53(5): 570-577, 2018 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-29596603

RESUMO

AIMS: The current study aimed to test for potential interactive effects of three implicit alcohol-related associations (drinking identity, alcohol approach and alcohol excitement) in predicting concurrent and prospective alcohol consumption and risk of alcohol use disorders (AUDs) in two samples of the US undergraduate drinkers and non-drinkers. SHORT SUMMARY: We investigated the independent and interactive effects of three implicit associations on alcohol consumption and risk of AUD in two US undergraduate student samples. We found that implicit associations had independent but not interactive effects on concurrent and subsequent alcohol consumption and risk of AUD in two independent samples. METHODS: Implicit drinking identity, alcohol approach and alcohol excitement associations were assessed in two US undergraduate student samples (Sample 1: N = 300, 55% female; Sample 2: N = 506, 57% female). Alcohol consumption and risk of AUD were assessed at baseline (Samples 1 and 2) and 3 months later (Sample 2). We fit zero-inflated negative binomial models to test for independent and interactive effects of the three implicit associations on alcohol consumption and risk of AUD. RESULTS: Although we found multiple, unique main effects for alcohol associations, we found minimal evidence of interactions between implicit alcohol-related associations. There was no reliable evidence of interactions in models in predicting alcohol consumption or risk of AUD, concurrently or prospectively, in either sample. CONCLUSIONS: Contrary to expectations, results from both studies indicated that implicit alcohol-related associations in the US undergraduate samples generally have independent, not interactive, relationships with alcohol consumption and risk of AUD.


Assuntos
Consumo de Álcool na Faculdade/psicologia , Alcoolismo/diagnóstico , Alcoolismo/psicologia , Autoimagem , Estudantes/psicologia , Adolescente , Adulto , Estudos Transversais , Feminino , Humanos , Masculino , Estudos Prospectivos , Distribuição Aleatória , Adulto Jovem
14.
J Sci Med Sport ; 20(8): 745-750, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28385561

RESUMO

OBJECTIVES: Illness can disrupt training and competition performance of athletes. Few studies have quantified the relative contribution of the known medical, behavioural and lifestyle risk factors. DESIGN: Cross-sectional. METHODS: Olympic athletes from 11 sports (n=221) were invited to complete questionnaires administered nine months before the Rio 2016 Olympic Games. These included the Depression, Anxiety and Stress Questionnaire (DASS-21), Perceived Stress Scale (PSS), Dispositional Resilience Scale (DRS), Recovery-Stress Questionnaire (REST-Q-52 item), Low Energy in Females Questionnaire (LEAF-Q), a modified Personal and Household Hygiene questionnaire, Epworth Sleepiness Scale, Pittsburgh Sleep Quality Index, and custom-made questionnaires on probiotic usage and travel. An illness (case) was defined as an event which limited training or competition for greater hours in the prior month. Odds ratios and attributable fractions in the population (AFP) were utilised for categorical variables with independent t-tests or Wilcoxon rank-sum for continuous variables. RESULTS: Eighty-one athletes responded (male, n=26; female, n=55). There were 16 illness cases and 65 controls. Female athletes were at higher odds of illness (OR=9.4, 95%CI 1.3-410, p=0.01, AFP=0.84). Low energy availability (LEAF-Q score ≥8: OR=7.4, 95%CI 0.78-352, p=0.04, AFP=0.76), depression symptoms (DASS-21: depression score >4, OR=8.4, 95%CI 1.1-59, p<0.01; AFP=0.39) and higher perceived stress (PSS: 10-item, p=0.04) were significantly associated with illness. CONCLUSIONS: Female sex, low energy availability, and mental health are associated with sports incapacity (time loss) due to illness. Low energy availability had high attributable fractions in the population and stands out as a primary association with illness.


Assuntos
Atletas/psicologia , Indicadores Básicos de Saúde , Medicina Esportiva/estatística & dados numéricos , Adulto , Estudos de Casos e Controles , Estudos Transversais , Depressão/epidemiologia , Feminino , Humanos , Masculino , Testes Neuropsicológicos , Fatores de Risco , Fatores Sexuais , Estresse Psicológico/epidemiologia , Inquéritos e Questionários , Adulto Jovem
15.
Artigo em Inglês | MEDLINE | ID: mdl-24303298

RESUMO

Translational research generates and/or uses very large amounts of diverse data. Informatics principles and methods address datasets that are large and complex, whereas few translational researchers know these principles and methods and many cannot design, carry out, or analyze the results of these studies optimally. With few exceptions, informatics education has not been directed to researchers, especially established researchers. To fill this gap, we carried out a formal needs assessment of research informatics education of translational researchers, focusing on established researchers. Using the results, we developed a model curriculum for educating researchers in research informatics and a first generation model online course in research informatics for researchers. We are completing a formal evaluation of this online course with a diverse group of translational researchers. From the results of this evaluation, we will create a second version of the online course, a dissemination plan to make it available to researchers nationally, and a plan to enhance the course over time. We will discuss the implications for the future of translational research and research informatics.

16.
J Virol ; 87(14): 8085-98, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23678182

RESUMO

Certain antigen-presenting cells (APCs) process and present extracellular antigen with major histocompatibility complex class I (MHC-I) molecules to activate naive CD8(+) T cells in a process termed cross-presentation. We used insights gained from HIV immune evasion strategies to demonstrate that the clathrin adaptor protein adaptor protein 1 (AP-1) is necessary for cross-presentation by MHC-I molecules containing a cytoplasmic tail tyrosine signal (murine MHC-I molecules, human MHC-I HLA-A and HLA-B allotypes). In contrast, AP-1 activity was not needed for cross-presentation by MHC-I molecules containing a human MHC-I HLA-C cytoplasmic tail, which does not contain a tyrosine signal. AP-1 activity was also dispensable for presentation of endogenous antigens by MHC-I via the classical pathway. In APCs, we show that HIV Nef disrupts cross-presentation by MHC-I containing the tyrosine signal but does not affect cross-presentation by MHC-I containing the HLA-C cytoplasmic tail. Thus, we provide evidence for two separable cross-presentation pathways, only one of which is targeted by HIV.


Assuntos
Complexo 1 de Proteínas Adaptadoras/metabolismo , Células Apresentadoras de Antígenos/imunologia , Apresentação Cruzada/imunologia , HIV-1/metabolismo , Antígenos de Histocompatibilidade Classe I/metabolismo , Tirosina/metabolismo , Complexo 1 de Proteínas Adaptadoras/imunologia , Sequência de Aminoácidos , Animais , Western Blotting , Primers do DNA/genética , Ensaio de Imunoadsorção Enzimática , Citometria de Fluxo , Vetores Genéticos/genética , Proteínas de Fluorescência Verde/genética , Proteínas de Fluorescência Verde/metabolismo , Antígenos de Histocompatibilidade Classe I/genética , Humanos , Imunoprecipitação , Lentivirus , Camundongos , Camundongos Endogâmicos C57BL , Microscopia Confocal , Dados de Sequência Molecular , Tirosina/genética , Produtos do Gene nef do Vírus da Imunodeficiência Humana/metabolismo
17.
J Med Econ ; 15(1): 87-95, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22032675

RESUMO

OBJECTIVE: Compare direct and indirect costs of oxymorphone extended-release ('oxymorphone') and oxycodone controlled-release ('oxycodone') users. METHODS: Patients, aged 18+, with ≥1 claim for oxymorphone/oxycodone, Q2:2006-Q4:2009, were selected from a de-identified private payer claims database and observed from the first such claim ('index date') until the earliest of: use of comparator drug; end of continuous eligibility; 12 months ('study period'). Patients with claims for any formulation of the comparator drug during the first 30 days of the study period were excluded. Direct (medical and drug) costs paid by private insurers were reported for patients aged 18-64 (n = 8354) and 65+(n = 3515), as well as sub-sets without cancer (n = 7090 and n = 2444, respectively). Indirect costs (medically-related absenteeism and disability) were reported for all employees, aged 18-64 (n = 1313), and employees without cancer (n = 1146). Multivariate models were used to estimate risk-adjusted costs controlling for patient characteristics. RESULTS: Oxymorphone users, aged 18-64, had lower drug costs ($693 vs $763, p = 0.0035) and similar medical costs ($1875 vs $1976, p = 0.3570) per patient-month compared with oxycodone users (mean follow-up 236 and 280 days, respectively). Indirect costs were not different ($662 vs $670, p = 0.9370). Oxymorphone users, aged 65+, had similar Medicare supplemental drug costs ($533 vs $588, p = 0.0840) and lower medical costs ($459 vs $747, p < 0.0001). Results were comparable for subsets without cancer. LIMITATIONS: Patients with concomitant use of oxymorphone and oxycodone were excluded. CONCLUSIONS: Oxymorphone users incur lower risk-adjusted costs in several cost categories, compared with oxycodone users, and no higher costs in any of the examined categories.


Assuntos
Analgésicos Opioides/economia , Preparações de Ação Retardada/economia , Gastos em Saúde , Oxicodona/economia , Oximorfona/economia , Adolescente , Adulto , Bases de Dados Factuais , Feminino , Humanos , Revisão da Utilização de Seguros , Masculino , Pessoa de Meia-Idade , Adulto Jovem
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...