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1.
Child Psychiatry Hum Dev ; 54(3): 683-691, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-34731402

RESUMO

This study examined if inconsistent bedtime routines are a mechanism through which high levels of parenting stress are related to bedtime resistant behaviors. Bedtime resistant behavior is a common problem in young children. Although previous studies have linked parenting stress to problematic behaviors at bedtime, understanding how and why that may be has been subject to limited empirical investigation. Caregivers (N = 118) of a child age 2-5 were recruited on Amazon's mechanical turk. There was a significant indirect effect of parenting stress on bedtime resistance through bedtime routines as well as a significant indirect effect of bedtime routines on bedtime resistant behavior through parenting stress. These findings suggest that there is a bidirectional relationship between inconsistent routines and parenting stress. Clinically, these results suggest that implementing a consistent routine at bedtime may improve both parent (less stress) and child (less bedtime resistance) functioning.


Assuntos
Poder Familiar , Sono , Humanos , Criança , Pré-Escolar , Pais
2.
BMC Health Serv Res ; 22(1): 332, 2022 Mar 12.
Artigo em Inglês | MEDLINE | ID: mdl-35279142

RESUMO

BACKGROUND: Individuals discharged from inpatient psychiatry units have the highest readmission rates of all hospitalized patients. These readmissions are often due to unmet need for mental health care compounded by limited human resources. Reducing the need for hospital admissions by providing alternative effective care will mitigate the strain on the healthcare system and for people with mental illnesses and their relatives. We propose implementation and evaluation of an innovative program which augments Mental Health Peer Support with an evidence-based supportive text messaging program developed using the principles of cognitive behavioral therapy. METHODS: A pragmatic stepped-wedge cluster-randomized trial, where daily supportive text messages (Text4Support) and mental health peer support are the interventions, will be employed. We anticipate recruiting 10,000 participants at the point of their discharge from 9 acute care psychiatry sites and day hospitals across four cities in Alberta. The primary outcome measure will be the number of psychiatric readmissions within 30 days of discharge. We will also evaluate implementation outcomes such as reach, acceptability, fidelity, and sustainability. Our study will be guided by the Consolidated Framework for Implementation Research, and the Reach-Effectiveness-Adoption-Implementation-Maintenance framework. Data will be extracted from administrative data, surveys, and qualitative methods. Quantitative data will be analysed using machine learning. Qualitative interviews will be transcribed and analyzed thematically using both inductive and deductive approaches. CONCLUSIONS: To our knowledge, this will be the first large-scale clinical trial to assess the impact of a daily supportive text message program with and without mental health peer support for individuals discharged from acute psychiatric care. We anticipate that the interventions will generate significant cost-savings by reducing readmissions, while improving access to quality community mental healthcare and reducing demand for acute care. It is envisaged that the results will shed light on the effectiveness, as well as contextual barriers and facilitators to implementation of automated supportive text message and mental health peer support interventions to reduce the psychological treatment and support gap for patients who have been discharged from acute psychiatric care. TRIAL REGISTRATION: clinicaltrials.gov, NCT05133726 . Registered 24 November 2021.


Assuntos
Envio de Mensagens de Texto , Alberta , Humanos , Alta do Paciente , Readmissão do Paciente , Psicoterapia
3.
J Clin Psychol Med Settings ; 26(1): 47-58, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-29626282

RESUMO

This study describes the development and psychometric evaluation of an adolescent self-report version of the Pediatric Diabetes Routines Questionnaire (PDRQ:A), a measure of diabetes-specific routines for youth with type 1 diabetes, and further validation of the parent-version (PDRQ:P) in an adolescent sample. Participants included 120 parent-adolescent dyads (ages 12-17) and an additional 24 parents who completed measures of diabetes-specific adolescent routines, general adolescent routines, diabetes self-care, and family support of youth diabetes care. The PDRQ:P/A demonstrated good internal consistency, test-retest reliability, and parent-child agreement, and adequate validity coefficients. Confirmatory factor analysis supported a one-factor model. Promising results were obtained. The PDRQ:P/A is a clinically feasible parent- and self-report measure that can provide valuable information regarding how frequently adolescents engage in their diabetes management tasks in a consistent manner. Addition of an adolescent report format will enhance the utility of the measure for clinical and research use.


Assuntos
Diabetes Mellitus Tipo 1/terapia , Autocuidado/métodos , Inquéritos e Questionários/normas , Adolescente , Criança , Análise Fatorial , Feminino , Humanos , Masculino , Pais , Psicometria , Reprodutibilidade dos Testes , Autocuidado/estatística & dados numéricos , Autorrelato
4.
J Ethn Subst Abuse ; 18(1): 103-128, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-28448209

RESUMO

Solution-focused brief therapy (SFBT) is a resource-based, future-oriented therapeutic approach that focuses on finding exceptions to problems and identifying coping strategies to build solutions. SFBT has been efficacious with individuals with alcohol use disorders. Chile experiences high levels of alcohol consumption and alcohol-related health consequences. Despite the international dissemination of SFBT, this is the first study to attempt a linguistic adaptation of SFBT in a Latin American country. We conducted 9 cognitive interviews to examine 13 translated main SFBT tools and 3 focus groups to gather information on cultural aspects of alcohol use in primary care. Results suggest that Chileans understood most SFBT tools, albeit with some linguistic modifications of original translations, and that family, gender, and meaningful issues should be considered when working with individuals with alcohol use disorders.


Assuntos
Consumo de Bebidas Alcoólicas/prevenção & controle , Alcoolismo/reabilitação , Psicoterapia Breve/métodos , Adaptação Psicológica , Adulto , Chile , Grupos Focais , Humanos , Entrevistas como Assunto , Atenção Primária à Saúde/métodos
5.
Child Psychiatry Hum Dev ; 49(3): 409-419, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28952046

RESUMO

Using multilevel modeling, we separately examined the relations between mothers' and fathers' parenting practices and children's prosocial behavior, as well as the moderating roles of child sex, age, and ethnicity. Participants included a diverse community sample of 129 cohabiting couples with a child aged 6-17. Results indicated that paternal positivity and corporal punishment were significantly related to girls', but not boys', prosocial behavior, and paternal involvement was related to prosocial behavior in school-aged children but not adolescents. Greater levels of positivity in both parents were related to more prosocial behavior in Caucasian children and less in African American children. Overall, the findings suggest that fathers' parenting is important and may differentially influence children of different sexes and ages, underscoring the importance of examining both mothers' and fathers' parenting in relation to child outcomes and with diverse samples. Findings also highlight the need for culturally appropriate measures of parenting.


Assuntos
Comportamento Infantil/etnologia , Comportamento Infantil/psicologia , Pai/psicologia , Mães/psicologia , Poder Familiar/etnologia , Poder Familiar/psicologia , Comportamento Social , Adolescente , Adulto , Negro ou Afro-Americano/psicologia , Criança , Educação Infantil/etnologia , Educação Infantil/psicologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , População Branca/psicologia , Adulto Jovem
6.
Retina ; 36(5): 957-61, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-27115857

RESUMO

PURPOSE: To investigate the incidence of postsurgical retinal displacement in patients treated with pars plana vitrectomy for rhegmatogenous retinal detachment and to assess the influence of displacement on macular function. METHODS: Observational prospective study of 20 consecutive cases of rhegmatogenous retinal detachment who underwent 23-G pars plana vitrectomy with gas (C3F8 or SF6) tamponade, and prone resting. Three months after surgery, retinal displacement was evaluated by fundus autofluorescence. Macular function was evaluated with optical coherence tomography, multifocal electroretinogram, best-corrected visual acuity, and stereopsis. RESULTS: Postoperative retinal displacement was observed in 60% of cases. No correlation between the type of tamponade used and retinal displacement was observed. Similarly, no association between retinal displacement and postoperative stereopsis or visual acuity was found. A lower amplitude in P1 wave on the multifocal electroretinogram was observed in eyes with rhegmatogenous retinal detachment compared with the contralateral eye. However, no statistically significant differences between groups with or without retinal displacement were found. CONCLUSION: Retinal displacement in patients who undergo pars plana vitrectomy to treat rhegmatogenous retinal detachment is common. However, this displacement does not seem to affect macular function.


Assuntos
Tamponamento Interno , Macula Lutea/fisiopatologia , Complicações Pós-Operatórias , Descolamento Retiniano/cirurgia , Vitrectomia , Idoso , Percepção de Profundidade/fisiologia , Eletrorretinografia , Feminino , Fluorocarbonos/administração & dosagem , Humanos , Incidência , Fotocoagulação a Laser , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Descolamento Retiniano/fisiopatologia , Hexafluoreto de Enxofre/administração & dosagem , Tomografia de Coerência Óptica , Acuidade Visual/fisiologia
7.
Sci Eng Ethics ; 20(1): 77-97, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23579468

RESUMO

While public administration research is thriving because of increased attention to social scientific rigor, lingering problems of methods and ethics remain. This article investigates the reporting of ethics approval within public administration publications. Beginning with an overview of ethics requirements regarding research with human participants, I turn to an examination of human participants protections for public administration research. Next, I present the findings of my analysis of articles published in the top five public administration journals over the period from 2000 to 2012, noting the incidences of ethics approval reporting as well as funding reporting. In explicating the importance of ethics reporting for public administration research, as it relates to replication, reputation, and vulnerable populations, I conclude with recommendations for increasing ethics approval reporting in public administration research.


Assuntos
Políticas Editoriais , Comitês de Ética em Pesquisa , Consentimento Livre e Esclarecido , Projetos de Pesquisa , Ciências Sociais/ética , Ética em Pesquisa , Humanos , Populações Vulneráveis
8.
Child Psychiatry Hum Dev ; 44(3): 419-29, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23085965

RESUMO

We examined positive and negative parenting practices and psychological control as mediators of the relations between constructive and destructive marital conflict and children's internalizing and externalizing problems in a unified model. Married mothers of 121 children between the ages of 6 and 12 completed questionnaires measuring marital conflict, parenting practices, and child adjustment. Analyses revealed significant direct paths from destructive marital conflict to negative parenting practices, psychological control, and both children's internalizing and externalizing behavior. In addition, psychological control was found to partially mediate relations between destructive marital conflict and children's internalizing and externalizing behavior.


Assuntos
Comportamento Infantil/psicologia , Conflito Familiar/psicologia , Controle Interno-Externo , Poder Familiar/psicologia , Ajustamento Social , Adulto , Criança , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Modelos Psicológicos , Adulto Jovem
9.
Dev World Bioeth ; 13(3): 125-37, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22994886

RESUMO

In their 2010 article 'Research Integrity in China: Problems and Prospects', Zeng and Resnik challenge others to engage in empirical research on research integrity in China. Here we respond to that call in three ways: first, we provide updates to their analysis of regulations and allegations of scientific misconduct; second, we report on two surveys conducted in Hong Kong that provide empirical backing to describe ways in which problems and prospects that Zeng and Resnik identify are being explored; and third, we continue the discussion started by Zeng and Resnik, pointing to ways in which China's high-profile participation in international academic research presents concerns about research integrity. According to our research, based upon searches of both English and Chinese language literature and policies, and two surveys conducted in Hong Kong, academic faculty and research post-graduate students in Hong Kong are aware of and have a positive attitude towards responsible conduct of research. Although Hong Kong is but one small part of China, we present this research as a response to concerns Zeng and Resnik introduce and as a call for a continued conversation.


Assuntos
Atitude do Pessoal de Saúde , Ética em Pesquisa , Pesquisadores/ética , Má Conduta Científica , Percepção Social , Responsabilidade Social , China , Coleta de Dados , Regulamentação Governamental , Conhecimentos, Atitudes e Prática em Saúde , Hong Kong , Humanos , Má Conduta Científica/ética , Estudantes de Medicina/estatística & dados numéricos
10.
J Psychopathol Behav Assess ; 45(1): 221-233, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36718197

RESUMO

Child routines have been recognized as positive contributors to children's development. However, in Portugal there is still a lack of instruments available to assess school-age child routines. The purpose of this study was to present the translation, adaptation, and validation studies of the Portuguese version of the Child Routines Questionnaire (CRQ), a parent self-report measure developed to assess school-age child routines. A total of 460 parents of children aged between 6 and 12 years-old participated in the study. Two studies were conducted to define the CRQ-PT factor structure. In Study 1 (n = 204 children from 6 to 12 years-old), findings from the exploratory factor analysis provided evidence for a four-factor structure (for 32 items), which explained 43.53% of the total variance. In Study 2 (n = 256 children from 6 to 9 years-old), results from confirmatory factor analysis showed good model fit indices (CFI = 0.84, RMSEA = 0.06). The total scale of the CRQ-PT (α = 0.89) and its subscales showed good internal consistency. Further evidence of construct validity was shown by weak to moderate correlations with measures of parental sense of competence and family mealtime routines. Relevant contributions of the study are underscored, namely the availability and usefulness of a reliable and valid assessment tool to evaluate the routines of Portuguese school-age children for clinical practice and research purposes.

11.
Intern Emerg Med ; 18(5): 1317-1327, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37131092

RESUMO

OBJECTIVE: The objective of this study was to develop and validate a risk scale (MARIACHI) for patients classified as non-ST-segment elevation acute coronary syndrome (NSTEACS) in a prehospital setting with the ability to identify patients at an increased risk of mortality at an early stage. METHODS: A retrospective observational study conducted in Catalonia over two periods: 2015-2017 (development and internal validation cohort) and Aug 2018-Jan 2019 (external validation cohort). We included patients classified as prehospital NSTEACS, assisted by an advanced life support unit and requiring hospital admission. The primary outcome was in-hospital mortality. Cohorts were compared using logistic regression and a predictive model was created using bootstrapping techniques. RESULTS: The development and internal validation cohort included 519 patients. The model is composed of five variables associated with hospital mortality: age, systolic blood pressure, heart rate > 95 bpm, Killip-Kimball III-IV and ST depression ≥ 0.5 mm. The model showed good overall performance (Brier = 0.043) and consistency in discrimination (AUC 0.88, 95% CI 0.83-0.92) and calibration (slope = 0.91; 95% CI 0.89-0.93). We included 1316 patients for the external validation sample. There was no difference in discrimination (AUC 0.83, 95% CI 0.78-0.87; DeLong Test p = 0.071), but there was in calibration (p < 0.001), so it was recalibrated. The finally model obtained was stratified and scored into three groups according to the predicted risk of patient in-hospital mortality: low risk: < 1% (-8 to 0 points), moderate risk: 1-5% (+ 1 to + 5 points) and high risk: > 5% (6-12 points). CONCLUSION: The MARIACHI scale showed correct discrimination and calibration to predict high-risk NSTEACS. Identification of high-risk patients may help with treatment and low referral decisions at the prehospital level.


Assuntos
Síndrome Coronariana Aguda , Serviços Médicos de Emergência , Humanos , Síndrome Coronariana Aguda/diagnóstico , Síndrome Coronariana Aguda/complicações , Medição de Risco/métodos , Hospitalização , Estudos Retrospectivos , Fatores de Risco
12.
Int J Gynecol Pathol ; 31(4): 369-76, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22653352

RESUMO

The objective of this research was to examine the immunohistochemical profiles of adenocarcinoma in situ (AIS) and early invasive adenocarcinoma (AC) to identify biomarkers that enhance the accurate diagnosis of early invasive glandular lesions of the cervix. The University of California, Irvine, and Long Beach Memorial tumor registries were used to identify 20 women with AIS or early AC treated between 1990 and 2008. An immunohistochemical study was performed, and the primary endpoint measured was the correlation between biomarker expression and invasive disease as diagnosed on hematoxylin and eosin examination. The biomarkers studied included α-smooth muscle actin (α-SMA), estrogen receptor, carcinoembryonic antigen, Ki67, p16, cyclooxygenase-2, and cluster of differentiation 1a. Stains were described on the basis of (1) positive or negative staining; (2) intensity; (3) percentage of positive cells; and (4) pattern of staining. Statistical analysis was performed using SYSTAT v. 11.0. Fisher exact test, Mann-Whitney nonparametric test, κ statistic, and intraclass correlation coefficient were used to evaluate results and interpreter agreement. A statistically significant increase in the staining of the periglandular stroma for α-SMA was seen in AC as compared with AIS. The intensity was 2.2 versus 1.2 (P=0.04) and the percent of positive-staining cells was 44% versus 18% (P=0.05) in AC and AIS, respectively. The presence of a desmoplastic stromal response as identified by the increased periglandular staining for α-SMA is useful in identifying invasive glandular lesions of the endocervix. Further studies are necessary to establish biologically relevant cut-off values for α-SMA staining.


Assuntos
Actinas/metabolismo , Adenocarcinoma/metabolismo , Biomarcadores Tumorais/metabolismo , Neoplasias do Colo do Útero/metabolismo , Adenocarcinoma/diagnóstico , Adenocarcinoma/patologia , California , Feminino , Humanos , Imuno-Histoquímica , Estudos Retrospectivos , Estatísticas não Paramétricas , Análise Serial de Tecidos/métodos , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/patologia
13.
J Pediatr Psychol ; 37(3): 348-57, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22171075

RESUMO

OBJECTIVES: To validate a three-factor model for the Pediatric Symptom Checklist-17 (PSC-17) and evaluate its diagnostic accuracy with African-American and Caucasian children with and without a chronic illness. METHODS: Mothers of 723 youth diagnosed with either type I diabetes (n = 210) or sickle cell disease (n = 191) and a nonill peer group (n = 322) completed a demographic questionnaire, the PSC-17, and the Child Behavior Checklist (CBCL). RESULTS: Confirmatory factor analyses and tests of measurement invariance validated a three-factor structure for the PSC-17 with African-American and Caucasian youth with and without a chronic illness. Receiver operating characteristic curves revealed optimal cut-off scores that are similar to published reports. CONCLUSIONS: A three-factor solution was replicated for the PSC-17 with African-American and Caucasian children with and without a chronic illness. Cut-off scores for identifying children at risk for emotional/behavioral problems were evaluated using the CBCL as the gold standard and are discussed.


Assuntos
Anemia Falciforme/diagnóstico , Negro ou Afro-Americano/estatística & dados numéricos , Lista de Checagem/normas , Diabetes Mellitus Tipo 1/diagnóstico , População Branca/estatística & dados numéricos , Adolescente , Negro ou Afro-Americano/psicologia , Anemia Falciforme/psicologia , Criança , Comportamento Infantil/psicologia , Transtornos do Comportamento Infantil/diagnóstico , Transtornos do Comportamento Infantil/psicologia , Doença Crônica/psicologia , Diabetes Mellitus Tipo 1/psicologia , Análise Fatorial , Feminino , Humanos , Masculino , Mães/psicologia , Curva ROC , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Inquéritos e Questionários , População Branca/psicologia
14.
Front Public Health ; 10: 814163, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35372185

RESUMO

Privacy protection for health data is more than simply stripping datasets of specific identifiers. Privacy protection increasingly means the application of privacy-enhancing technologies (PETs), also known as privacy engineering. Demands for the application of PETs are not yet met with ease of use or even understanding. This paper provides a scope of the current peer-reviewed evidence regarding the practical use or adoption of various PETs for managing health data privacy. We describe the state of knowledge of PETS for the use and exchange of health data specifically and build a practical perspective on the steps needed to improve the standardization of the application of PETs for diverse uses of health data.


Assuntos
Confidencialidade , Privacidade , Segurança Computacional , Humanos
15.
Int J Gynecol Cancer ; 21(5): 918-22, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21697681

RESUMO

BACKGROUND: Epithelioid trophoblastic tumor (ETT) is a recently described subtype of gestational trophoblastic neoplasia (GTN). Its diagnosis requires a high level of suspicion because it is often mistaken for more common cervical or uterine corpus epithelial neoplasms. CASE: This is a 39-year-old woman who presented with a cervical mass and positive human chorionic gonadotropin and was diagnosed with both locally advanced squamous cell cervical carcinoma and nonmetastatic GTN. She was treated unsuccessfully with concurrent intravenous cisplatin plus pelvic radiation and single-agent intravenous methotrexate. A retrospective review of the cervical biopsy using immunohistochemistry as well as genotyping of the tumor changed the original diagnosis to ETT. It is known that ETT is relatively unresponsive to chemotherapy compared with most other types of GTN; therefore, surgery would have been the optimal treatment. She died despite multiple salvage chemotherapies. CONCLUSIONS: Malignant GTN is one of the most curable gynecologic malignancies; however, its correct diagnosis is critical for the appropriate treatment. It can be easily misdiagnosed as a carcinoma because of their morphologic similarity. Genetic fingerprinting and immunohistochemistry are potentially valuable tools to confirm the diagnosis of ETT.


Assuntos
Carcinoma de Células Escamosas/diagnóstico , Doença Trofoblástica Gestacional/diagnóstico , Neoplasias Trofoblásticas/diagnóstico , Neoplasias do Colo do Útero/diagnóstico , Neoplasias Uterinas/diagnóstico , Adulto , Diagnóstico Diferencial , Feminino , Doença Trofoblástica Gestacional/patologia , Humanos , Gravidez , Estudos Retrospectivos , Neoplasias Uterinas/patologia
16.
J Marital Fam Ther ; 47(3): 551-565, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33818791

RESUMO

As a response to the COVID-19 global crisis, many in the couple/marital and family therapy (CMFT) professional community quickly met the challenge of providing services to clients via telebehavioral health (TBH) services. As this public health emergency endures, family therapists must continue to engage in TBH practice professionally and ethically. The rapid adoption of TBH with minimal training and experience during this public health emergency can result in crises for both individual therapists as well as for the profession in implementing electronic record-keeping, conducting virtual sessions, and communicating online with various clinical populations. The risk of insufficient training and supervision create a challenge to new and experienced family therapists. This article summarizes the work done by the profession thus far to respond to this public health emergency and presents a roadmap of recommendations for navigating those challenges into the future and offers ideas about how to sustain quality TBH practice.


Assuntos
Terapia de Casal , Terapia Familiar , Guias como Assunto , Pessoal de Saúde , Serviços de Saúde Mental , Prática Profissional , Telemedicina , Terapia de Casal/organização & administração , Terapia de Casal/normas , Terapia Familiar/organização & administração , Terapia Familiar/normas , Guias como Assunto/normas , Pessoal de Saúde/educação , Pessoal de Saúde/normas , Humanos , Serviços de Saúde Mental/organização & administração , Serviços de Saúde Mental/normas , Prática Profissional/organização & administração , Prática Profissional/normas , Telemedicina/organização & administração , Telemedicina/normas
17.
Account Res ; 25(1): 1-20, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29140730

RESUMO

International guidelines for the conduct of research with human participants, such as those put forth by the Council for International Organizations of Medical Sciences (CIOMS, 2002), recommend that research review committees account for social risk and benefits to society in their review of proposed research. What do the concepts of the "social" and "society" mean in the context of the review of human participants research? Here we analyze concepts of social and society to define the terms: social harm, social risk, social benefit, and benefits to society. We argue that use of these terms invite more questions than answers and beg for difficult empirical research to determine the nature, likelihood, and magnitude of this category of risk and benefit. Until more research is done and these questions are answered, we advise reviewers to adopt an attitude of provisionalism and caution in their review of specifically "social" risks and benefits and "benefits to society."


Assuntos
Formação de Conceito , Experimentação Humana , Sujeitos da Pesquisa/psicologia , Comportamento Social , Comitês de Ética em Pesquisa , Humanos , Cooperação Internacional , Projetos de Pesquisa , Medição de Risco/métodos , Terminologia como Assunto
18.
Cell Adh Migr ; 12(1): 5-18, 2018 01 02.
Artigo em Inglês | MEDLINE | ID: mdl-28346043

RESUMO

Contactin-5 (Cntn5) is an immunoglobulin cell adhesion molecule that is exclusively expressed in the central nervous system. In view of its association with neurodevelopmental disorders, particularly autism spectrum disorder (ASD), this study focused on Cntn5-positive areas in the forebrain and aimed to explore the morphological and behavioral phenotypes of the Cntn5 null mutant (Cntn5-/-) mouse in relation to these areas and ASD symptomatology. A newly generated antibody enabled us to elaborately describe the spatial expression pattern of Cntn5 in P7 wild type (Cntn5+/+) mice. The Cntn5 expression pattern included strong expression in the cerebral cortex, hippocampus and mammillary bodies in addition to described previously brain nuclei of the auditory pathway and the dorsal thalamus. Thinning of the primary somatosensory (S1) cortex was found in Cntn5-/- mice and ascribed to a misplacement of Cntn5-ablated cells. This phenotype was accompanied by a reduction in the barrel/septa ratio of the S1 barrel field. The structure and morphology of the hippocampus was intact in Cntn5-/- mice. A set of behavioral experiments including social, exploratory and repetitive behaviors showed that these were unaffected in Cntn5-/- mice. Taken together, these data demonstrate a selective role of Cntn5 in development of the cerebral cortex without overt behavioral phenotypes.


Assuntos
Comportamento Animal/fisiologia , Córtex Cerebral/crescimento & desenvolvimento , Contactinas/deficiência , Córtex Somatossensorial/anormalidades , Animais , Transtorno do Espectro Autista/genética , Transtorno do Espectro Autista/patologia , Contactinas/metabolismo , Hipocampo/patologia , Camundongos Knockout , Proteínas do Tecido Nervoso/metabolismo
19.
World J Gastroenterol ; 12(12): 1972-4, 2006 Mar 28.
Artigo em Inglês | MEDLINE | ID: mdl-16610011

RESUMO

Little is known about the long-term survivors of acute arsenic intoxication. We present here a clinical case report of a man with chronic hepatitis B virus (HBV) infection who developed hepatocellular carcinoma four years after acute arsenic poisoning. HBsAg was detected in serum in 1990 when he voluntarily donated blood. In 1991, the patient suffered from severe psychological depression that led him to attempt suicide by massive ingestion of an arsenic-containing rodenticide. He survived with polyneuropathy and paralysis of the lower limbs, and has been wheelchair-bound since then. During participation in a follow-up study conducted among HBV carriers, abdominal ultrasound detected a two-centimeter liver mass consistent with hepatocellular carcinoma. The tumor was confirmed by computed tomography (CT) and magnetic resonance image (MRI). Because of his significant comorbidity, the patient received palliative treatment with transarterial lipiodol chemoembolization (TACE) on three occasions (1996, 1997 and 1999). At his most recent visit in May 2005, the patient was asymptomatic, liver enzymes were normal and the tumor was in remission on ultrasound.


Assuntos
Intoxicação por Arsênico/complicações , Carcinoma Hepatocelular/etiologia , Hepatite B/complicações , Neoplasias Hepáticas/etiologia , Carcinoma Hepatocelular/epidemiologia , Carcinoma Hepatocelular/patologia , Carcinoma Hepatocelular/terapia , Quimioembolização Terapêutica , Seguimentos , Antígenos de Superfície da Hepatite B/sangue , Vírus da Hepatite B , Humanos , Fígado/diagnóstico por imagem , Fígado/patologia , Fígado/virologia , Neoplasias Hepáticas/epidemiologia , Neoplasias Hepáticas/patologia , Neoplasias Hepáticas/terapia , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Tomografia Computadorizada por Raios X , Resultado do Tratamento
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