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1.
BMC Psychol ; 11(1): 179, 2023 Jun 08.
Artigo em Inglês | MEDLINE | ID: mdl-37291611

RESUMO

BACKGROUND: The Coronavirus disease 2019 (COVID-19) pandemic has impacted parental and child mental health and wellbeing in the UK. This study aimed to explore the experiences of parents of children with rare neurological and neurodevelopmental conditions with a known or suspected genetic cause (neurogenetic) across the first year of the pandemic in the UK. METHODS: Semi-structured interviews were conducted with 11 parents of children with rare neurogenetic conditions. Parents were recruited via opportunity sampling from the CoIN Study, a longitudinal quantitative study exploring the impact of the pandemic on the mental health and wellbeing of families with rare neurogenetic conditions. Interviews were analysed using Interpretative Phenomenological Analysis. RESULTS: Four main themes were identified: (1) "A varied impact on child wellbeing: from detrimental to 'no big drama'"; (2) "Parental mental health and wellbeing: impact, changes, and coping"; (3) "'The world had shut its doors and that was that': care and social services during the pandemic"; and (4) "Time and luck: abstract concepts central to parents' perspectives of how they coped during the pandemic". The majority of parents described experiencing an exacerbation of pre-pandemic challenges due to increased uncertainty and a lack of support, with a minority reporting positive effects of the pandemic on family wellbeing. CONCLUSIONS: These findings offer a unique insight into the experiences parents of children with rare neurogenetic conditions across the first year of the pandemic in the UK. They highlight that the experiences of parents were not pandemic-specific, and will continue to be highly relevant in a non-pandemic context. Future support should to be tailored to the needs of families and implemented across diverse future scenarios to promote coping and positive wellbeing.


Assuntos
COVID-19 , Pandemias , Criança , Humanos , COVID-19/epidemiologia , Pais/psicologia , Adaptação Psicológica , Saúde Mental
2.
BMC Med Educ ; 22(1): 301, 2022 Apr 21.
Artigo em Inglês | MEDLINE | ID: mdl-35449012

RESUMO

BACKGROUND: Despite the widespread adoption of interprofessional simulation-based education (IPSE) in healthcare as a means to optimize interprofessional teamwork, data suggest that IPSE may not achieve these intended goals due to a gap between the ideals and the realities of implementation. METHODS: We conducted a qualitative case study that used the framework method to understand what and how core principles from guidelines for interprofessional education (IPE) and simulation-based education (SBE) were implemented in existing in situ IPSE programs. We observed simulation sessions and interviewed facilitators and directors at seven programs. RESULTS: We found considerable variability in how IPSE programs apply and implement core principles derived from IPE and SBE guidelines with some principles applied by most programs (e.g., "active learning", "psychological safety", "feedback during debriefing") and others rarely applied (e.g., "interprofessional competency-based assessment", "repeated and distributed practice"). Through interviews we identified that buy-in, resources, lack of outcome measures, and power discrepancies influenced the extent to which principles were applied. CONCLUSIONS: To achieve IPSE's intended goals of optimizing interprofessional teamwork, programs should transition from designing for the ideal of IPSE to realities of IPSE implementation.


Assuntos
Educação Interprofissional , Aprendizagem Baseada em Problemas , Humanos , Relações Interprofissionais , Pesquisa Qualitativa
3.
J Interprof Care ; : 1-9, 2022 Feb 02.
Artigo em Inglês | MEDLINE | ID: mdl-35109751

RESUMO

Interprofessional simulation aims to improve teamwork and patient care by bringing participants from multiple professions together to practice simulated patient care scenarios. Yet, power dynamics may influence interprofessional learning during simulation, which typically occurs during the debriefing. This issue has received limited attention to date but may explain why communication breakdowns and conflicts among healthcare teams persist despite widespread adoption of interprofessional simulation. This study explores the role of power during interprofessional simulation debriefings. We collected data through observations of seven interprofessional simulation sessions and debriefings, four focus groups with simulation participants, and four interviews with simulation facilitators. We identified ways in which power dynamics influenced discussions during debriefing and sometimes limited participants' willingness to share feedback and speak up. We also found that issues related to power that arose during interprofessional simulations often went unacknowledged during the debriefing, leaving healthcare professionals unprepared to navigate power discrepancies with other members of healthcare teams in practice. Given that the goal of interprofessional simulation is to allow professionals to learn together about each other, explicitly addressing power in debriefing after interprofessional simulation may enhance learning.

4.
J Matern Fetal Neonatal Med ; 28(2): 121-30, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24684658

RESUMO

OBJECTIVE: Resuscitation of infants at 23 weeks' gestation remains controversial; clinical practices vary. We sought to investigate the cost effectiveness of resuscitation of infants born 23 0/7-23 6/7 weeks' gestation. DESIGN: Decision-analytic modeling comparing universal and selective resuscitation to non-resuscitation for 5176 live births at 23 weeks in a theoretic U.S. cohort. Estimates of death (77%) and disability (64-86%) were taken from the literature. Maternal and combined maternal-neonatal utilities were applied to discounted life expectancy to generate QALYs. Incremental cost-effectiveness ratios were calculated, discounting costs and QALYs. Main outcomes included number of survivors, their outcome status and incremental cost-effectiveness ratios for the three strategies. A cost-effectiveness threshold of $100 000/QALY was utilized. RESULTS: Universal resuscitation would save 1059 infants: 138 severely disabled, 413 moderately impaired and 508 without significant sequelae. Selective resuscitation would save 717 infants: 93 severely disabled, 279 moderately impaired and 343 without significant sequelae. For mothers, non-resuscitation is less expensive ($19.9 million) and more effective (127 844 mQALYs) than universal resuscitation ($1.2 billion; 126 574 mQALYs) or selective resuscitation ($845 million; 125 966 mQALYs). For neonates, both universal and selective resuscitation were cost-effective, resulting in 22 256 and 15 134 nQALYS, respectively, versus 247 nQALYs for non-resuscitation. In sensitivity analyses, universal resuscitation was cost-effective from a maternal perspective only at utilities for neonatal death <0.42. When analyzed from a maternal-neonatal perspective, universal resuscitation was cost-effective when the probability of neonatal death was <0.95. CONCLUSIONS: Over wide ranges of probabilities for survival and disability, universal and selective resuscitation strategies were not cost-effective from a maternal perspective. Both strategies were cost-effective from a maternal-neonatal perspective. This study offers a metric for counseling and decision-making for extreme prematurity. Our results could support a more permissive response to parental requests for aggressive intervention at 23 weeks' gestation.


Assuntos
Análise Custo-Benefício , Lactente Extremamente Prematuro , Ressuscitação , Estudos de Coortes , Técnicas de Apoio para a Decisão , Idade Gestacional , Humanos , Recém-Nascido de Peso Extremamente Baixo ao Nascer , Recém-Nascido , Terapia Intensiva Neonatal/economia , Seleção de Pacientes , Qualidade de Vida , Ressuscitação/economia , Ressuscitação/estatística & dados numéricos , Resultado do Tratamento , Estados Unidos
5.
Anim Biotechnol ; 23(4): 241-52, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23134304

RESUMO

Short tandem repeat polymorphisms (STRPs) are robust and informative markers for a range of genetic applications. STRPs are advantageous in experimental designs that derive power from sampling many individuals rather than many loci (e.g., pedigree-based studies, fine-scale mapping, and conservation genetics). STRPs have proven useful for vetting samples prior to costly high-density SNP analysis. Here we present validated STRPs (n = 1,012) spanning the canine genome (2.1 +/-1.4 Mb; 2.1 +/-2.1 cM). Standardized design, pre-multiplexing, M13-based dye-labeling, and selection for loci amenable to semi-automated allele-scoring minimize cost and facilitate efficient genotyping. The markers are leveraged from the canine linkage map, and thus are backed by genetic data useful for parametric multipoint analysis and assessment of empiric coverage. We demonstrate several applications with different marker subsets. The complete set provides a genome scan for linkage at ∼5 cM resolution. A subset of the markers measures molecular diversity between domestic and wild canid populations. Another subset reflects ancestry within breeds, uncovering hidden stratification and flagging genetic outliers prior to SNP genotyping. Thus, the markers described here add flexibility and cost effectiveness to several genetic applications in the dog that complement genome-wide SNP genotyping studies. Supplemental material is available for this article. Go to the publisher's online edition of Animal Biotechnology.


Assuntos
Mapeamento Cromossômico/métodos , Cães/classificação , Cães/genética , Marcadores Genéticos/genética , Linhagem , Animais , Ligação Genética , Repetições de Microssatélites , Polimorfismo de Nucleotídeo Único
6.
PLoS Genet ; 8(9): e1002898, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23028339

RESUMO

Domestic dogs can suffer from hearing losses that can have profound impacts on working ability and quality of life. We have identified a type of adult-onset hearing loss in Border Collies that appears to have a genetic cause, with an earlier age of onset (3-5 years) than typically expected for aging dogs (8-10 years). Studying this complex trait within pure breeds of dog may greatly increase our ability to identify genomic regions associated with risk of hearing impairment in dogs and in humans. We performed a genome-wide association study (GWAS) to detect loci underlying adult-onset deafness in a sample of 20 affected and 28 control Border Collies. We identified a region on canine chromosome 6 that demonstrates extended support for association surrounding SNP Chr6.25819273 (p-value = 1.09 × 10(-13)). To further localize disease-associated variants, targeted next-generation sequencing (NGS) of one affected and two unaffected dogs was performed. Through additional validation based on targeted genotyping of additional cases (n = 23 total) and controls (n = 101 total) and an independent replication cohort of 16 cases and 265 controls, we identified variants in USP31 that were strongly associated with adult-onset deafness in Border Collies, suggesting the involvement of the NF-κB pathway. We found additional support for involvement of RBBP6, which is critical for cochlear development. These findings highlight the utility of GWAS-guided fine-mapping of genetic loci using targeted NGS to study hereditary disorders of the domestic dog that may be analogous to human disorders.


Assuntos
Proteínas de Transporte/genética , Doenças Cocleares/genética , Proteínas de Ligação a DNA/genética , Surdez , Endopeptidases/genética , Envelhecimento/genética , Animais , Mapeamento Cromossômico , Cóclea/crescimento & desenvolvimento , Cóclea/patologia , Surdez/genética , Surdez/veterinária , Cães , Predisposição Genética para Doença , Estudo de Associação Genômica Ampla , Humanos , NF-kappa B/genética , Polimorfismo de Nucleotídeo Único , Ubiquitina-Proteína Ligases , Proteases Específicas de Ubiquitina
7.
PLoS One ; 7(6): e31260, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22761647

RESUMO

Increased cellular production of vascular endothelial growth factor (VEGF) is responsible for the development and progression of multiple cancers and other neovascular conditions, and therapies targeting post-translational VEGF products are used in the treatment of these diseases. Development of methods to control and modify the transcription of the VEGF gene is an alternative approach that may have therapeutic potential. We have previously shown that isoforms of the transcriptional enhancer factor 1-related (TEAD4) protein can enhance the production of VEGF. In this study we describe a new TEAD4 isoform, TEAD4(216), which represses VEGF promoter activity. The TEAD4(216) isoform inhibits human VEGF promoter activity and does not require the presence of the hypoxia responsive element (HRE), which is the sequence critical to hypoxia inducible factor (HIF)-mediated effects. The TEAD4(216) protein is localized to the cytoplasm, whereas the enhancer isoforms are found within the nucleus. The TEAD4(216) isoform can competitively repress the stimulatory activity of the TEAD4(434) and TEAD4(148) enhancers. Synthesis of the native VEGF(165) protein and cellular proliferation is suppressed by the TEAD4(216) isoform. Mutational analysis indicates that nuclear or cytoplasmic localization of any isoform determines whether it acts as an enhancer or repressor, respectively. The TEAD4(216) isoform appears to inhibit VEGF production independently of the HRE required activity by HIF, suggesting that this alternatively spliced isoform of TEAD4 may provide a novel approach to treat VEGF-dependent diseases.


Assuntos
Hipóxia Celular , Proteínas de Ligação a DNA/metabolismo , Degeneração Macular/metabolismo , Proteínas Musculares/metabolismo , Neovascularização Patológica , Sequências Reguladoras de Ácido Nucleico , Fatores de Transcrição/metabolismo , Fator A de Crescimento do Endotélio Vascular/genética , Idoso , Idoso de 80 Anos ou mais , Processamento Alternativo , Western Blotting , Núcleo Celular/metabolismo , Proliferação de Células , Corioide/irrigação sanguínea , Corioide/metabolismo , Citoplasma/metabolismo , Proteínas de Ligação a DNA/genética , Endotélio Corneano/citologia , Endotélio Corneano/metabolismo , Oftalmopatias/metabolismo , Oftalmopatias/patologia , Humanos , Fator 1 Induzível por Hipóxia/genética , Fator 1 Induzível por Hipóxia/metabolismo , Técnicas Imunoenzimáticas , Isquemia/metabolismo , Isquemia/patologia , Degeneração Macular/patologia , Proteínas Musculares/genética , Sinais de Localização Nuclear , Regiões Promotoras Genéticas/genética , Ligação Proteica , RNA Mensageiro/genética , Reação em Cadeia da Polimerase em Tempo Real , Retina/metabolismo , Retina/patologia , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Fatores de Transcrição de Domínio TEA , Fatores de Transcrição/genética , Ativação Transcricional , Fator A de Crescimento do Endotélio Vascular/antagonistas & inibidores , Fator A de Crescimento do Endotélio Vascular/metabolismo
8.
PLoS One ; 5(9)2010 Sep 17.
Artigo em Inglês | MEDLINE | ID: mdl-20862248

RESUMO

BACKGROUND: Musladin-Lueke Syndrome (MLS) is a hereditary disorder affecting Beagle dogs that manifests with extensive fibrosis of the skin and joints. In this respect, it resembles human stiff skin syndrome and the Tight skin mouse, each of which is caused by gene defects affecting fibrillin-1, a major component of tissue microfibrils. The objective of this work was to determine the genetic basis of MLS and the molecular consequence of the identified mutation. METHODOLOGY AND PRINCIPAL FINDINGS: We mapped the locus for MLS by genome-wide association to a 3.05 Mb haplotype on canine chromosome 9 (CFA9 (50.11-54.26; p(raw) <10(-7))), which was homozygous and identical-by-descent among all affected dogs, consistent with recessive inheritance of a founder mutation. Sequence analysis of a candidate gene at this locus, ADAMTSL2, which is responsible for the human TGFß dysregulation syndrome, Geleophysic Dysplasia (GD), uncovered a mutation in exon 7 (c.660C>T; p.R221C) perfectly associated with MLS (p-value=10(-12)). Murine ADAMTSL2 containing the p.R221C mutation formed anomalous disulfide-bonded dimers when transiently expressed in COS-1, HEK293F and CHO cells, and was present in the medium of these cells at lower levels than wild-type ADAMTSL2 expressed in parallel. CONCLUSIONS/SIGNIFICANCE: The genetic basis of MLS is a founder mutation in ADAMTSL2, previously shown to interact with latent TGF-ß binding protein, which binds fibrillin-1. The molecular effect of the founder mutation on ADAMTSL2 is formation of disulfide-bonded dimers. Although caused by a distinct mutation, and having a milder phenotype than human GD, MLS nevertheless offers a new animal model for study of GD, and for prospective insights on mechanisms and pathways of skin fibrosis and joint contractures.


Assuntos
Doenças do Cão/congênito , Doenças do Cão/genética , Proteínas da Matriz Extracelular/genética , Artropatias/veterinária , Mutação de Sentido Incorreto , Anormalidades da Pele/veterinária , Animais , Sequência de Bases , Linhagem Celular , Mapeamento Cromossômico , Doenças do Cão/metabolismo , Doenças do Cão/fisiopatologia , Cães , Éxons , Proteínas da Matriz Extracelular/metabolismo , Humanos , Artropatias/genética , Artropatias/metabolismo , Artropatias/fisiopatologia , Camundongos , Dados de Sequência Molecular , Anormalidades da Pele/genética , Anormalidades da Pele/metabolismo , Anormalidades da Pele/fisiopatologia
9.
Genetics ; 184(2): 595-605, 2010 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-19966068

RESUMO

We have leveraged the reference sequence of a boxer to construct the first complete linkage map for the domestic dog. The new map improves access to the dog's unique biology, from human disease counterparts to fascinating evolutionary adaptations. The map was constructed with approximately 3000 microsatellite markers developed from the reference sequence. Familial resources afforded 450 mostly phase-known meioses for map assembly. The genotype data supported a framework map with approximately 1500 loci. An additional approximately 1500 markers served as map validators, contributing modestly to estimates of recombination rate but supporting the framework content. Data from approximately 22,000 SNPs informing on a subset of meioses supported map integrity. The sex-averaged map extended 21 M and revealed marked region- and sex-specific differences in recombination rate. The map will enable empiric coverage estimates and multipoint linkage analysis. Knowledge of the variation in recombination rate will also inform on genomewide patterns of linkage disequilibrium (LD), and thus benefit association, selective sweep, and phylogenetic mapping approaches. The computational and wet-bench strategies can be applied to the reference genome of any nonmodel organism to assemble a de novo linkage map.


Assuntos
Mapeamento Cromossômico , Cães/genética , Genoma/genética , Animais , Sequência de Bases , Feminino , Loci Gênicos/genética , Marcadores Genéticos/genética , Humanos , Internet , Masculino , Meiose/genética , Repetições de Microssatélites/genética , Polimorfismo de Nucleotídeo Único/genética , Recombinação Genética , Cromossomo X/genética
10.
Crit Care Nurs Q ; 32(3): 232-41, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19542974

RESUMO

This case study describes the implementation of the Parsons' Healthy Workplace Theory and Intervention in a surgical intensive care unit in a level 1 trauma facility. This intervention and change strategy was the impetus for the creation of a more positive work environment by developing and empowering staff. The process led to shared decision making and development of action planning teams that subsequently became unit-based committees. The committees have focused goals, action plans, and timelines for achieving those goals. Transforming care and the enculturation of shared decision making at the bedside is essential for improving quality of patient care and for recruitment and retention of nurses.


Assuntos
Cuidados Críticos/organização & administração , Ambiente de Instituições de Saúde/organização & administração , Recursos Humanos de Enfermagem Hospitalar/organização & administração , Saúde Ocupacional , Centros de Traumatologia/organização & administração , Humanos , Relações Interprofissionais , Papel do Profissional de Enfermagem , Gestão de Recursos Humanos , Avaliação de Programas e Projetos de Saúde
11.
J Acquir Immune Defic Syndr ; 48(1): 1-12, 2008 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-18300699

RESUMO

Dendritic cells (DCs) from HIV-1-infected individuals display numeric and functional defects, and recent evidence suggests that HIV-1 can directly and indirectly activate DCs in vitro. The in vivo activation state and compartmentalization of DC subsets during HIV-1 infection remain poorly understood, however. We evaluated phenotypic and functional characteristics of myeloid dendritic cells (mDCs) and plasmacytoid dendritic cells (pDCs) directly ex vivo in peripheral blood and lymphoid tissue from HIV-1-infected and HIV-seronegative individuals. Analysis of a wide range of chemokine receptors and activation/maturation markers on circulating DCs from viremic HIV-1-infected donors revealed a phenotype indicative of partial activation. Yet, blood DCs from viremic subjects still achieved full maturation when stimulated in vitro. In addition, blood pDCs from viremic individuals had a reduced capacity to migrate to CXCL12 in vitro. Total numbers of both DC subsets were increased in lymph nodes of asymptomatic untreated HIV-1-infected subjects, consistent with DC accumulation in the lymphoid compartment. Lymph node DCs also expressed high levels of CD40 in the absence of increases of other typical activation/maturation markers. Activation and depletion of DCs in blood with accumulation in lymphoid tissue may contribute to HIV-associated chronic immune activation and T-cell dysfunction.


Assuntos
Células Dendríticas/imunologia , Infecções por HIV/patologia , Tecido Linfoide/patologia , Sequência de Bases , Primers do DNA , Citometria de Fluxo , Infecções por HIV/imunologia , HIV-1 , Humanos , Tecido Linfoide/imunologia , Fenótipo
13.
Aust Fam Physician ; 34(12): 1053-5, 2005 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-16333490

RESUMO

Communication skills courses are an essential component of undergraduate and postgraduate training and effective communication skills are actively promoted by medical defence organisations as a means of decreasing litigation. This article discusses active listening, a difficult discipline for anyone to practise, and examines why this is particularly so for doctors. It draws together themes from key literature in the field of communication skills, and examines how these theories apply in general practice.


Assuntos
Percepção Auditiva , Comunicação , Relações Médico-Paciente , Conscientização , Competência Clínica , Humanos , Julgamento , Assistência Centrada no Paciente/métodos
14.
Aust Fam Physician ; 34(9): 781-3, 2005 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16184213

RESUMO

Reflection is a crucial process in the transforming of experience into knowledge, skills and attitudes. As such it is at the core of both learning and continually evolving professional practice. This article draws on literature from adult learning and medical education fields to present a theoretical framework for reflection and practical techniques for its application in general practice. It is directed toward the training of medical students and registrars on clinical rotations, but also for the established general practitioner.


Assuntos
Educação Médica Continuada/métodos , Aprendizagem Baseada em Problemas/métodos , Prática Profissional , Austrália , Processos Grupais , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Narração , Técnicas de Planejamento , Gerenciamento do Tempo/métodos
15.
Nucleic Acids Res ; 33(13): 4078-89, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-16040599

RESUMO

Proliferating cell nuclear antigen loading onto DNA by replication factor C (RFC) is a key step in eukaryotic DNA replication and repair processes. In this study, the C-terminal domain (CTD) of the large subunit of fission yeast RFC is shown to be essential for its function in vivo. Cells carrying a temperature-sensitive mutation in the CTD, rfc1-44, arrest with incompletely replicated chromosomes, are sensitive to DNA damaging agents, are synthetically lethal with other DNA replication mutants, and can be suppressed by mutations in rfc5. To assess the contribution of the RFC-like complexes Elg1-RFC and Ctf18-RFC to the viability of rfc1-44, genes encoding the large subunits of these complexes have been deleted and overexpressed. Inactivation of Ctf18-RFC by the deletion of ctf18+, dcc1+ or ctf8+ is lethal in an rfc1-44 background showing that full Ctf18-RFC function is required in the absence of fully functional RFC. In contrast, rfc1-44 elg1Delta cells are viable and overproduction of Elg1 in rfc1-44 is lethal, suggesting that Elg1-RFC plays a negative role when RFC function is inhibited. Consistent with this, the deletion of elg1+ is shown to restore viability to rfc1-44 ctf18Delta cells.


Assuntos
Proteínas de Transporte/genética , Proteínas de Ligação a DNA/fisiologia , Proteínas de Schizosaccharomyces pombe/genética , Schizosaccharomyces/genética , Fatores de Transcrição/genética , Sequência de Aminoácidos , Proteínas de Transporte/fisiologia , Análise Mutacional de DNA , Replicação do DNA , Proteínas de Ligação a DNA/química , Proteínas de Ligação a DNA/genética , Deleção de Genes , Genes Letais , Dados de Sequência Molecular , Estrutura Terciária de Proteína , Subunidades Proteicas/genética , Proteína de Replicação C , Proteínas de Schizosaccharomyces pombe/química , Proteínas de Schizosaccharomyces pombe/fisiologia , Fatores de Transcrição/química , Fatores de Transcrição/fisiologia
16.
J Cell Sci ; 118(Pt 9): 2043-55, 2005 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-15840649

RESUMO

53BP1 protein is re-localized to the sites of DNA damage after ionizing radiation (IR) and is involved in DNA-damage-checkpoint signal transduction. We examined the dynamics of GFP-53BP1 in living cells. The protein starts to accumulate at the sites of DNA damage 2-3 minutes after damage induction. Fluorescence recovery after photobleaching experiments showed that GFP-53BP1 is highly mobile in non-irradiated cells. Upon binding to the IR-induced nuclear foci, the mobility of 53BP1 reduces greatly. The minimum (M) domain of 53BP1 essential for targeting to IR induced foci consists of residues 1220-1703. GFP-M protein forms foci in mouse embryonic fibroblast cells lacking functional endogenous 53BP1. The M domain contains a tandem repeat of Tudor motifs and an arginine- and glycine-rich domain (RG stretch), which are often found in proteins involved in RNA metabolism, the former being essential for targeting. RNase A treatment dissociates 53BP1 from IR-induced foci. In HeLa cells, dissociation of the M domain without the RG stretch by RNase A treatment can be restored by re-addition of nuclear RNA in the early stages of post-irradiation. 53BP1 immunoprecipitates contain some RNA molecules. Our results suggest a possible involvement of RNA in the binding of 53BP1 to chromatin damaged by IR.


Assuntos
Cromatina/química , Dano ao DNA , Peptídeos e Proteínas de Sinalização Intracelular/genética , Peptídeos e Proteínas de Sinalização Intracelular/fisiologia , Fosfoproteínas/genética , Fosfoproteínas/fisiologia , RNA/química , Sequência de Aminoácidos , Animais , Reparo do DNA , Fibroblastos/metabolismo , Recuperação de Fluorescência Após Fotodegradação , Proteínas de Fluorescência Verde/metabolismo , Células HeLa , Homozigoto , Humanos , Imunoprecipitação , Peptídeos e Proteínas de Sinalização Intracelular/metabolismo , Camundongos , Camundongos Transgênicos , Microscopia de Fluorescência , Dados de Sequência Molecular , Mutação , Fosfoproteínas/metabolismo , Plasmídeos/metabolismo , Ligação Proteica , Estrutura Terciária de Proteína , Ribonuclease Pancreático/metabolismo , Ribonucleases/metabolismo , Transdução de Sinais , Fatores de Tempo , Proteína 1 de Ligação à Proteína Supressora de Tumor p53
17.
Disasters ; 28(3): 294-321, 2004 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-15344943

RESUMO

The Reproductive Health Response in Conflict (RHRC) Consortium designed a standardised questionnaire to measure gender-based violence (GBV) prevalence in conflict-affected settings. A preliminary field test was undertaken July-August 2002 in one urban and one rural district in East Timor to assess the prevalence of GBV among women 18-49 years of age during and after conflict. The field test used a cross-sectional survey design with a two-stage random selection process. During the year preceding East Timor's 1999 crisis, 23.8 per cent of respondents reported physical assault by an intimate partner; this rate was not significantly different in the year preceding the survey (24.8 per cent). Assault by perpetrators outside the family declined significantly from 24.2 per cent during the crisis to 5.8 per cent post-crisis for physical assault (p<.001) and 22.7 per cent during the crisis to 9.7 per cent post-crisis for sexual assault (p=0.046). The field test stimulated and informed additional research in East Timor, and the complementary findings of these research initiatives continue to be used to develop local policies and programming to prevent and address GBV.


Assuntos
Estupro/estatística & dados numéricos , Maus-Tratos Conjugais/estatística & dados numéricos , Violência/estatística & dados numéricos , Guerra , Adulto , Estudos Transversais , Feminino , Inquéritos Epidemiológicos , Humanos , Indonésia , Pessoa de Meia-Idade , Refugiados , Risco , Comportamento Social , Fatores Socioeconômicos
18.
Proc Natl Acad Sci U S A ; 101(32): 11725-30, 2004 Aug 10.
Artigo em Inglês | MEDLINE | ID: mdl-15289602

RESUMO

A mutation in the canine multidrug resistance gene, MDR1, has previously been associated with drug sensitivities in two breeds from the collie lineage. We exploited breed phylogeny and reports of drug sensitivity to survey other purebred populations that might be genetically at risk. We found that the same allele, mdr1-1Delta, segregated in seven additional breeds, including two sighthounds that were not expected to share collie ancestry. A mutant haplotype that was conserved among affected breeds indicated that the allele was identical by descent. Based on breed histories and the extent of linkage disequilibrium, we conclude that all dogs carrying mdr1-1Delta are descendants of a dog that lived in Great Britain before the genetic isolation of breeds by registry (ca. 1873). The breed distribution and frequency of mdr1-1Delta have applications in veterinary medicine and selective breeding, whereas the allele's history recounts the emergence of formally recognized breeds from an admixed population of working sheepdogs.


Assuntos
Cruzamento , Cães/genética , Genes MDR/genética , Mutação , Alelos , Animais , Cruzamento/história , Doenças do Cão/induzido quimicamente , Doenças do Cão/genética , Frequência do Gene , Genes MDR/fisiologia , Haplótipos , História Moderna 1601- , Ivermectina/efeitos adversos , Desequilíbrio de Ligação , Síndromes Neurotóxicas/etiologia , Síndromes Neurotóxicas/genética , Síndromes Neurotóxicas/veterinária , Farmacogenética , Filogenia
19.
Women Health ; 37(4): 49-65, 2003.
Artigo em Inglês | MEDLINE | ID: mdl-12956214

RESUMO

The impact of screening programs for cervical cancer would be increased with the greater participation of currently underscreened women. Training for medical students and doctors in the fine technical and communication skills required in breast and gynaecological examinations would improve participation by increasing the confidence and skill of doctors in raising the issue of screening, thereby making the examination a more positive experience for women. Gynaecology Teaching Associate (GTA) programs, using specially trained standardized patients, have been used in over 90% of American and Canadian medical schools for more than ten years to provide such training. Australia has been slow to adopt this teaching method. A Clinical Teaching Associates in Gynaecology program (CTA) was first established in 1996 by the Department of Obstetrics and Gynaecology at the University of Queensland, building on the Pap test program from Adelaide. Other medical schools subsequently introduced such programs and in 2000, the Department of General Practice, University of Melbourne, established a CTA program based on the Queensland program, with a grant from PapScreen Victoria. This paper describes the methods of recruitment and training of CTAs, use of CTAs in the medical course, preliminary evaluation, and ethical and other issues in the Melbourne and Queensland University programs.


Assuntos
Testes Diagnósticos de Rotina/estatística & dados numéricos , Educação de Pós-Graduação em Medicina/métodos , Ginecologia/educação , Relações Médico-Paciente , Neoplasias do Colo do Útero/diagnóstico , Saúde da Mulher , Comunicação , Testes Diagnósticos de Rotina/psicologia , Docentes de Medicina , Feminino , Humanos , Modelos Educacionais , Exame Físico/estatística & dados numéricos , Médicas/psicologia , Queensland , Faculdades de Medicina , Neoplasias do Colo do Útero/prevenção & controle , Esfregaço Vaginal/estatística & dados numéricos
20.
Fam Pract ; 20(4): 382-9, 2003 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-12876107

RESUMO

BACKGROUND: Postnatal morbidity is high, and many GPs lack the confidence and knowledge to deal with common postnatal problems. There is a high consultation rate, but few women disclose common health problems. OBJECTIVE: The aim of the present study was to increase the knowledge and skills of GPs to enable them to identify and manage common health problems experienced by women in the year following childbirth. METHODS: An educational programme [Guidelines for Assessing Postnatal Problems (GAPP)] embedded within a large randomized community intervention trial [Program of Resources, Information and Support for Mothers (PRISM)] with a before/after evaluation was undergone by Australian GPs working in four metropolitan and four rural communities. The programme comprised audit, interactive workshops, role-play and evidence-based guidelines, and was evaluated at baseline and 6 months through written questionnaires and a surgery consultation with a trained simulated patient evaluator. RESULTS: A total of 68 (86%) GPs took part in the full GAPP programme. The odds of a GP improving on the knowledge items ranged from 1.0 to 16, with the greatest change occurring in knowledge about the effectiveness of cognitive behavioural therapy for maternal depression. Of the GPs with an incorrect response at baseline, the percentage demonstrating improved knowledge at follow-up ranged from 22 to 100%. Around half of the GPs demonstrated excellent communication skills at baseline. Of the remaining GPs, more than half demonstrated greatly improved skills to detect common postnatal problems at follow-up. At baseline simulated patient visit, 70% of GPs inquired about sexual problems yet none inquired about the possibility of abuse, whereas at follow-up 94% inquired about sexual problems and 51.5% facilitated the disclosure of physical and emotional abuse. Anonymous feedback on the programme by participating GPs showed that 89% believed the programme positively influenced their actual practice. Interestingly, GPs demonstrated greater knowledge and skills in the simulated setting than on the written questionnaire. CONCLUSIONS: This relatively brief multifaceted educational programme assisted many participants in improving their knowledge and the skills required to improve both physical and emotional health after birth. Despite being experienced clinicians and participating actively in a programme on interviewing skills, half of the GPs did not facilitate disclosure of the underlying sensitive issue (abuse) during the follow-up consultation and could benefit from further in-depth training in effective communication skills.


Assuntos
Medicina Baseada em Evidências , Medicina de Família e Comunidade/normas , Cuidado Pós-Natal/normas , Guias de Prática Clínica como Assunto , Austrália , Competência Clínica , Depressão Pós-Parto/diagnóstico , Medicina de Família e Comunidade/educação , Feminino , Humanos , Complicações do Trabalho de Parto/diagnóstico , Simulação de Paciente , Período Pós-Parto , Gravidez
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