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1.
Cancers (Basel) ; 15(2)2023 Jan 11.
Artículo en Inglés | MEDLINE | ID: mdl-36672409

RESUMEN

Drug resistance is a long-standing impediment to effective systemic cancer therapy and acquired drug resistance is a growing problem for molecularly-targeted therapeutics that otherwise have shown unprecedented successes in disease control. The hepatocyte growth factor (HGF)/Met receptor pathway signaling is frequently involved in cancer and has been a subject of targeted drug development for nearly 30 years. To anticipate and study specific resistance mechanisms associated with targeting this pathway, we engineered resistance to the HGF-neutralizing antibody rilotumumab in glioblastoma cells harboring autocrine HGF/Met signaling, a frequent abnormality of this brain cancer in humans. We found that rilotumumab resistance was acquired through an unusual mechanism comprising dramatic HGF overproduction and misfolding, endoplasmic reticulum (ER) stress-response signaling and redirected vesicular trafficking that effectively sequestered rilotumumab and misfolded HGF from native HGF and activated Met. Amplification of MET and HGF genes, with evidence of rapidly acquired intron-less, reverse-transcribed copies in DNA, was also observed. These changes enabled persistent Met pathway activation and improved cell survival under stress conditions. Point mutations in the HGF pathway or other complementary or downstream growth regulatory cascades that are frequently associated with targeted drug resistance in other prevalent cancer types were not observed. Although resistant cells were significantly more malignant, they retained sensitivity to Met kinase inhibition and acquired sensitivity to inhibition of ER stress signaling and cholesterol biosynthesis. Defining this mechanism reveals details of a rapidly acquired yet highly-orchestrated multisystem route of resistance to a selective molecularly-targeted agent and suggests strategies for early detection and effective intervention.

2.
Artículo en Inglés | MEDLINE | ID: mdl-35805477

RESUMEN

Globally, there is an urgent need for solutions that can support our aging populations to live well and reduce the associated economic, social and health burdens. Implementing smart technologies within homes and communities may assist people to live well and 'age in place'. To date, there has been little consultation with older Australians addressing either the perceived benefits, or the potential social and ethical challenges associated with smart technology use. To address this, we conducted five World Cafés in two Australian states, aiming to capture citizen knowledge about the possibilities and challenges of smart technologies. The participants (n = 84) were aged 55 years and over, English-speaking, and living independently. Grounding our analysis in values-based social science and biomedical ethical principles, we identified the themes reflecting the participants' understanding, resistance, and acceptance of smart technologies, and the ethical principles, including beneficence, non-maleficence, autonomy, privacy, confidentiality, and justice. Similar to other studies, many of the participants demonstrated cautious and conditional acceptance of smart technologies, while identifying concerns about social isolation, breaches of privacy and confidentiality, surveillance, and stigmatization. Attention to understanding and incorporating the values of older citizens will be important for the acceptance and effectiveness of smart technologies for supporting independent and full lives for older citizens.


Asunto(s)
Servicios de Atención de Salud a Domicilio , Anciano , Envejecimiento , Australia , Humanos , Privacidad , Tecnología
3.
Aust J Rural Health ; 30(3): 385-392, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35099093

RESUMEN

OBJECTIVE: To explore animal science and veterinary students' and livestock farmers' perceptions concerning Q fever prevention. DESIGN: An online survey with an open-ended question seeking knowledge and perceptions about Q fever prevention was distributed among participants during March-September 2019. We applied thematic analysis to identify emerging themes. SETTING: Animal science and veterinary students enrolled at the University of Adelaide and members of Livestock South Australia representing cattle, sheep and goat farmers in South Australia. PARTICIPANTS: A total of56 animal science and veterinary students and 154 livestock farmers responded to the open-ended question. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Perceived challenges and opportunities for a coordinated Q fever prevention approach including human vaccination reported by the participants. RESULTS: Two major themes arose in each group. Students and farmers viewed Q fever vaccination as important. However, excessive cost for students was a barrier and for farmers, it was general practitioners' lack of knowledge of Q fever and access to an accredited immunisation provider. Similarly, both groups highlighted the need for education and increasing public and community awareness of Q fever. CONCLUSION: Our findings underscore that a sector-wide approach involving community awareness programmes, education and training for general practitioners, and subsidised vaccination as well as commitment from government and industry partners may contribute to reducing the burden of Q fever among at-risk populations.


Asunto(s)
Fiebre Q , Animales , Bovinos , Agricultores , Humanos , Ganado , Fiebre Q/prevención & control , Ovinos , Estudiantes , Universidades
4.
BMC Palliat Care ; 20(1): 138, 2021 Sep 09.
Artículo en Inglés | MEDLINE | ID: mdl-34503479

RESUMEN

BACKGROUND: Advance care planning involves the discussion and documentation of an individual's values and preferences to guide their future healthcare should they lose capacity to make or communicate treatment decisions. Advance care planning can involve the individual's completion of an Advance Care Directive (ACD), a legislated and common-law instrument which may include appointment of a substitute decision-maker and binding refusals of treatment. In South Australia, ACDs intersect in the acute-care context with the Resuscitation Plan 7-Step Pathway (7-SP), an integrated care plan written for and by clinicians, designed to organise and improve patients' end-of-life care through the use of structured documentation. Here, we examine the perspectives of healthcare professionals (HCPs) within a hospital setting on the practical integration of ACDs and the 7-SP, exploring the perceived role, function, and value of each as they intersect to guide end-of-life care in an Australian hospital setting. METHODS: Qualitative data were collected via eight focus groups with a total of 74 HCPs (acute care, and oncology specialists; medical intern; general and emergency nurses; social workers) across two hospitals. Audio recordings were transcribed and thematically analysed. RESULTS: HCPs viewed ACDs as a potentially valuable means of promoting patient autonomy, but as rarely completed and poorly integrated into hospital systems. Conversely, the process and documentation of the 7-SP was perceived as providing clarity about clinicians' responsibilities, and as a well-understood, integrated resource. Participants sometimes exhibited uncertainty around which document takes precedence if both were present. Sometimes, the routinisation of the 7-SP meant it was understood as the 'only way' to determine patient wishes and provide optimal end-of-life care. When this occurs, the perceived authority of ACDs, or of patients' choice not to participate in end-of-life discussions, may be undermined. CONCLUSIONS: The intersection of ACDs and the 7-SP appears problematic within acute care. Clinicians' uncertainty as to whether an ACD or 7-SP takes precedence, and when it should do so, suggests a need for further clarity and training on the roles of these documents in guiding clinical practice, the legislative context within which specific documentation is embedded, and the dynamics associated with collaborative decision-making in end-of-life care.


Asunto(s)
Planificación Anticipada de Atención , Directivas Anticipadas , Australia , Documentación , Hospitales , Humanos
5.
Health Promot J Austr ; 32(1): 46-74, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-31724783

RESUMEN

ISSUE ADDRESSED: Noncommunicable chronic disease underlies much of the life expectancy gap experienced by Aboriginal and Torres Strait Islander people. Modifying contributing risk factors; tobacco smoking, nutrition, alcohol consumption, physical activity, social and emotional wellbeing (SNAPS) could help close this disease gap. This scoping review identified and describes SNAPS health promotion programs implemented for Aboriginal and Torres Strait Islander people in Australia. METHODS: Databases PubMed, CINAHL, Informit (Health Collection and Indigenous Peoples Collection), Scopus, Trove and relevant websites and clearing houses were searched for eligible studies until June 2015. To meet the inclusion criteria the program had to focus on modifying one of the SNAPS risk factors and the majority of participants had to identify as being of Aboriginal and/or Torres Strait Islander heritage. RESULTS: The review identified 71 health promotion programs, described in 83 publications. Programs were implemented across a range of health and community settings and included all Australian states and territories, from major cities to remote communities. The SNAPS factor addressed most commonly was nutrition. Some programs included the whole community, or had multiple key audiences, whilst others focused solely on one subgroup of the population such as chronic disease patients, pregnant women or youth. Fourteen of the programs reported no outcome assessments. CONCLUSIONS: Health promotion programs for Aboriginal and Torres Strait Islander people have not been adequately evaluated. The majority of programs focused on the development of individual skills and changing personal behaviours without addressing the other health promotion action areas, such as creating supportive environments or reorienting health care services. SO WHAT?: This scoping review provides a summary of the health promotion programs that have been delivered in Australia for Aboriginal and Torres Strait Islander people to prevent or manage chronic disease. These programs, although many are limited in quality, should be used to inform future programs. To improve evidence-based health promotion practice, health promotion initiatives need to be evaluated and the findings published publicly.


Asunto(s)
Enfermedad Crónica , Promoción de la Salud , Nativos de Hawái y Otras Islas del Pacífico , Adolescente , Australia , Femenino , Humanos , Embarazo , Factores de Riesgo
6.
PLoS One ; 15(4): e0226661, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32240171

RESUMEN

CD47 is an immune checkpoint protein that downregulates both the innate and adaptive anti-tumor immune response via its counter receptor SIRPα. Biologics, including humanized CD47 monoclonal antibodies and decoy SIRPα receptors, that block the SIRPα-CD47 interaction, are currently being developed as cancer immunotherapy agents. However, adverse side effects and limited penetration of tumor tissue associated with their structure and large size may impede their clinical application. We recently developed a quantitative high throughput screening assay platform to identify small molecules that disrupt the binding of SIRPα and CD47 as an alternative approach to these protein-based therapeutics. Here, we report on the development and optimization of a cell-based binding assay to validate active small molecules from our biochemical screening effort. This assay has a low volume, high capacity homogenous format that relies on laser scanning cytometry (LSC) and associated techniques to enhance signal to noise measurement of cell surface binding. The LSC assay is specific, concentration dependent, and validated for the two major human SIRPα variants (V1 and V2), with results that parallel those of our biochemical data as well as published studies. We also utilized the LSC assay to confirm published studies showing that the inhibition of amino-terminal pyroglutamate formation on CD47 using the glutaminyl cyclase inhibitor SEN177 disrupts SIRPα binding. The SIRPα-CD47 interaction could be quantitatively measured in live and fixed tumor cells. Use of fixed cells reduces the burden of cell maintenance and provides stable cell standards to control for inter- and intra-assay variations. We also demonstrate the utility of the assay to characterize the activity of the first reported small molecule antagonists of the SIRPα-CD47 interaction. This assay will support the screening of thousands of compounds to identify or validate active small molecules as hits, develop structure activity relationships and assist in the optimization of hits to leads by a typical iterative medicinal chemistry campaign.


Asunto(s)
Inmunidad Adaptativa/efectos de los fármacos , Antígenos de Diferenciación/genética , Antígeno CD47/genética , Neoplasias/tratamiento farmacológico , Receptores Inmunológicos/genética , Bibliotecas de Moléculas Pequeñas/farmacología , Inmunidad Adaptativa/genética , Aminoaciltransferasas/antagonistas & inhibidores , Aminoaciltransferasas/química , Antígenos de Diferenciación/química , Antígeno CD47/química , Desarrollo de Medicamentos , Regulación Neoplásica de la Expresión Génica/efectos de los fármacos , Ensayos Analíticos de Alto Rendimiento/métodos , Humanos , Inmunoterapia/métodos , Células Jurkat , Citometría de Barrido por Láser , Ligandos , Oncología Médica/tendencias , Neoplasias/genética , Neoplasias/inmunología , Neoplasias/patología , Fagocitosis/efectos de los fármacos , Mapas de Interacción de Proteínas/genética , Receptores Inmunológicos/química , Bibliotecas de Moléculas Pequeñas/química
7.
PLoS One ; 14(7): e0218897, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31276567

RESUMEN

CD47 is an immune checkpoint molecule that downregulates key aspects of both the innate and adaptive anti-tumor immune response via its counter receptor SIRPα, and it is expressed at high levels in a wide variety of tumor types. This has led to the development of biologics that inhibit SIRPα engagement including humanized CD47 antibodies and a soluble SIRPα decoy receptor that are currently undergoing clinical trials. Unfortunately, toxicological issues, including anemia related to on-target mechanisms, are barriers to their clinical advancement. Another potential issue with large biologics that bind CD47 is perturbation of CD47 signaling through its high-affinity interaction with the matricellular protein thrombospondin-1 (TSP1). One approach to avoid these shortcomings is to identify and develop small molecule molecular probes and pretherapeutic agents that would (1) selectively target SIRPα or TSP1 interactions with CD47, (2) provide a route to optimize pharmacokinetics, reduce on-target toxicity and maximize tissue penetration, and (3) allow more flexible routes of administration. As the first step toward this goal, we report the development of an automated quantitative high-throughput screening (qHTS) assay platform capable of screening large diverse drug-like chemical libraries to discover novel small molecules that inhibit CD47-SIRPα interaction. Using time-resolved Förster resonance energy transfer (TR-FRET) and bead-based luminescent oxygen channeling assay formats (AlphaScreen), we developed biochemical assays, optimized their performance, and individually tested them in small-molecule library screening. Based on performance and low false positive rate, the LANCE TR-FRET assay was employed in a ~90,000 compound library qHTS, while the AlphaScreen oxygen channeling assay served as a cross-validation orthogonal assay for follow-up characterization. With this multi-assay strategy, we successfully eliminated compounds that interfered with the assays and identified five compounds that inhibit the CD47-SIRPα interaction; these compounds will be further characterized and later disclosed. Importantly, our results validate the large library qHTS for antagonists of CD47-SIRPα interaction and suggest broad applicability of this approach to screen chemical libraries for other protein-protein interaction modulators.


Asunto(s)
Anticuerpos Monoclonales Humanizados/farmacología , Antígenos de Diferenciación/metabolismo , Antígeno CD47/metabolismo , Descubrimiento de Drogas/métodos , Ensayos Analíticos de Alto Rendimiento/métodos , Receptores Inmunológicos/metabolismo , Bibliotecas de Moléculas Pequeñas/farmacología , Animales , Antígenos de Diferenciación/química , Biotina/química , Biotina/metabolismo , Antígeno CD47/química , Antígeno CD47/inmunología , Humanos , Modelos Moleculares , Unión Proteica/efectos de los fármacos , Dominios Proteicos , Receptores Inmunológicos/química , Reproducibilidad de los Resultados , Transducción de Señal/efectos de los fármacos
8.
Health Promot Int ; 32(2): 312-321, 2017 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-26822033

RESUMEN

Understanding the processes and the factors influencing intersectoral collaboration is vital for the ongoing success of programmes that rely on effective partnerships between sectors, such as the school-based immunization programme, the school dental health programme and health promotion interventions delivered in school settings. We studied school-based health programmes delivered by partnerships between health, education and the local government sectors. We used purposive sampling to identify 19 people working in school-based health programmes and interviewed them about the barriers and enablers of successful collaboration. Data were analysed thematically. We found that collaboration between complex systems was a skilled endeavour which relied on a strong foundation of communication and interpersonal professional relationships. Understanding the core business, operational context and intersectoral point-of-view of collaborative partners was important both for establishing good intersectoral programmes and sustaining them as contexts and personnel changed. Aligning divergent sectoral agendas early in the collaborative process was essential for ensuring that all partners could meet their core business needs while also delivering the programme outcomes.


Asunto(s)
Conducta Cooperativa , Colaboración Intersectorial , Servicios de Salud Escolar/organización & administración , Australia , Comunicación , Humanos , Gobierno Local
9.
BMC Med Educ ; 16(1): 219, 2016 Aug 24.
Artículo en Inglés | MEDLINE | ID: mdl-27552987

RESUMEN

BACKGROUND: An approach to improve management of student clinical placements, the Building Teams for Quality Learning project, was trialed in three different health services. In a previous paper the authors explored in some detail the factors associated with considerable success of this approach at one of these services. In this paper, the authors extend this work with further analysis to determine if the more limited outcomes observed with participants at the other two services could be explained by application of activity theory and in particular the expansive learning cycle. METHODS: Staff at three health services participated in the Building Teams for Quality Learning project: a dental clinic, a community aged care facility and a rural hospital. At each site a team of seven multi-disciplinary staff completed the project over 9 to 12 months (total 21 participants). Evaluation data were collected through interviews, focus groups and direct observation of staff and students. Following initial thematic analysis, further analysis was conducted to compare the processes and outcomes at each participating health service drawing on activity theory and the expansive learning cycle. RESULTS: Fifty-one interview transcripts, 33 h of workplace observation and 31 sets of workshop field notes (from 36 h of workshops) were generated. All participants were individually supportive of, and committed to, high quality student learning experiences. As was observed with staff at the dental clinic, a number of potentially effective strategies were discussed at the aged care facility and the rural hospital workshops. However, participants in these two health services could not develop a successful implementation plan. The expansive learning cycle element of modeling and testing new solutions was not achieved and participants were unable, collectively to reassess and reinterpret the object of their activities. CONCLUSION: The application of activity theory and the expansive learning cycle assisted a deeper understanding of the differences in outcomes observed across the three groups of participants. This included identifying specific points in the expansive learning cycle at which the three groups diverged. These findings support some practical recommendations for health services that host student clinical placements.


Asunto(s)
Personal Administrativo/educación , Investigación sobre Servicios de Salud , Cuerpo Médico de Hospitales/educación , Cuerpo Médico de Hospitales/organización & administración , Preceptoría , Facultades de Medicina , Estudiantes de Medicina , Australia , Humanos , Modelos Teóricos , Evaluación de Procesos y Resultados en Atención de Salud , Desarrollo de Programa , Investigación Cualitativa , Lugar de Trabajo
10.
Mol Cancer Ther ; 15(7): 1568-79, 2016 07.
Artículo en Inglés | MEDLINE | ID: mdl-27196782

RESUMEN

The MET receptor tyrosine kinase is involved in cell growth, survival, and invasion. Clinical studies with small molecule MET inhibitors have shown the role of biomarkers in identifying patients most likely to benefit from MET-targeted therapy. AMG 337 is an oral, small molecule, ATP-competitive, highly selective inhibitor of the MET receptor. Herein, we describe AMG 337 preclinical activity and mechanism of action in MET-dependent tumor models. These studies suggest MET is the only therapeutic target for AMG 337. In an unbiased tumor cell line proliferation screen (260 cell lines), a closely related analogue of AMG 337, Compound 5, exhibited activity in 2 of 260 cell lines; both were MET-amplified. Additional studies examining the effects of AMG 337 on the proliferation of a limited panel of cell lines with varying MET copy numbers revealed that high-level focal MET amplification (>12 copies) was required to confer MET oncogene addiction and AMG 337 sensitivity. One MET-amplified cell line, H1573 (>12 copies), was AMG 337 insensitive, possibly because of a downstream G12A KRAS mutation. Mechanism-of-action studies in sensitive MET-amplified cell lines demonstrated that AMG 337 inhibited MET and adaptor protein Gab-1 phosphorylation, subsequently blocking the downstream PI3K and MAPK pathways. AMG 337 exhibited potency in pharmacodynamic assays evaluating MET signaling in tumor xenograft models; >90% inhibition of Gab-1 phosphorylation was observed at 0.75 mg/kg. These findings describe the preclinical activity and mechanism of action of AMG 337 in MET-dependent tumor models and indicate its potential as a novel therapeutic for the treatment of MET-dependent tumors. Mol Cancer Ther; 15(7); 1568-79. ©2016 AACR.


Asunto(s)
Antineoplásicos/farmacología , Inhibidores de Proteínas Quinasas/farmacología , Proteínas Proto-Oncogénicas c-met/antagonistas & inhibidores , Animales , Antineoplásicos/química , Línea Celular Tumoral , Proliferación Celular/efectos de los fármacos , Supervivencia Celular/efectos de los fármacos , Modelos Animales de Enfermedad , Relación Dosis-Respuesta a Droga , Femenino , Amplificación de Genes , Humanos , Sistema de Señalización de MAP Quinasas/efectos de los fármacos , Ratones , Necrosis , Neoplasias/tratamiento farmacológico , Neoplasias/genética , Neoplasias/metabolismo , Neoplasias/patología , Fosfatidilinositol 3-Quinasas/metabolismo , Inhibidores de Proteínas Quinasas/química , Proteínas Proto-Oncogénicas c-met/genética , Proteínas Proto-Oncogénicas c-met/metabolismo , Transducción de Señal/efectos de los fármacos , Ensayos Antitumor por Modelo de Xenoinjerto
11.
Am J Public Health ; 105(7): 1399-403, 2015 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-25602867

RESUMEN

OBJECTIVES: We investigated ethical issues in school-based immunization programs for adolescents and how they are addressed. METHODS: We used qualitative methods and an ethnographic approach to observe 9 secondary schools on immunization days in South Australia in 2011; concurrently, we conducted 9 focus groups with female secondary school students, 6 semistructured interviews with parents, and 10 interviews with nurses and teachers. We explored ethical challenges from the perspective of these groups. RESULTS: We identified ethical challenges for the delivery of adolescent immunization in a school-based setting in 3 main areas: informed consent, restrictions on privacy, and harm to students in the form of fear and anxiety. CONCLUSIONS: We found areas in which the design and delivery of school-based immunization programs can be improved. Information about immunization should be provided in ways that are appropriate to young people and their parents, and privacy protections should be enhanced when possible. Involving young people in the design and delivery of programs would assist with making these improvements.


Asunto(s)
Programas de Inmunización/ética , Servicios de Salud Escolar/ética , Adolescente , Niño , Confidencialidad , Docentes , Femenino , Grupos Focales , Humanos , Consentimiento Informado , Entrevistas como Asunto , Padres/psicología , Investigación Cualitativa , Australia del Sur , Estudiantes/psicología
12.
BMC Med Educ ; 14: 182, 2014 Aug 30.
Artículo en Inglés | MEDLINE | ID: mdl-25175411

RESUMEN

BACKGROUND: The aim of this project was to explore the process of change in a busy community dental clinic following a team development intervention designed to improve the management of student supervision during clinical placements. METHODS: An action research model was used. Seven members of a community dental clinic team (three dentists, two dental therapists, one dental assistant and the clinic manager), together with the university clinical placement supervisor participated in the team development intervention. The intervention consisted of two profiling activities and associated workshops spread six months apart. These activities focused on individual work preferences and overall team performance with the aim of improving the functioning of the clinic as a learning environment for dental students. Evaluation data consisted of 20 participant interviews, fourteen hours of workplace observation and six sets of field notes. Following initial thematic analysis, project outcomes were re-analysed using activity theory and expansive learning as a theoretical framework. RESULTS: At project commencement students were not well integrated into the day-to-day clinic functioning. Staff expressed a general view that greater attention to student supervision would compromise patient care. Following the intervention greater clinical team cohesion and workflow changes delivered efficiencies in practice, enhanced relationships among team members, and more positive attitudes towards students. The physical layout of the clinic and clinical workloads were changed to achieve greater involvement of all team members in supporting student learning. Unexpectedly, these changes also improved clinic functioning and increased the number of student placements available. CONCLUSIONS: In navigating the sequential stages of the expansive learning cycle, the clinical team ultimately redefined the 'object' of their activity and crossed previously impervious boundaries between healthcare delivery and student supervision with benefits to all parties.


Asunto(s)
Actitud del Personal de Salud , Educación en Odontología/organización & administración , Mentores , Atención al Paciente , Competencia Clínica , Curriculum , Educación , Humanos , Modelos Educacionales , Grupo de Atención al Paciente/organización & administración , Preceptoría/organización & administración , Australia del Sur
13.
Vaccine ; 32(21): 2434-40, 2014 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-24631098

RESUMEN

OBJECTIVES: Completion of adolescent immunisation schedules in Australia is sub-optimal despite a well-established school based delivery program. The aim of this study was to seek adolescent and adult views on how existing adolescent school based immunisation policy and program delivery could be improved to increase adolescent immunisation uptake. METHOD: Two citizens' juries held separately, one with adolescent participants and one with adult participants deliberated on recommendations for public policy. Jury members were selected using a stratified sampling technique and recruited from a standing panel of community research participants through a market research company in South Australia. Juries were conducted in Metropolitan South Australia over two days and used university facilities with all meals and refreshments provided. RESULTS: Fifteen adults and 16 adolescents participated in the adult and youth juries respectively. Similar recommendations were made by both juries including increased ensuring the accuracy of information provided to adolescents and parents; employing a variety of formats for information delivery; and greater consideration of students' physical and emotional comfort in order to improve the experience for adolescents. While the youth jury recommended that it should be compulsory for adolescents to receive vaccines through the school based immunisation program, the adult jury recommended an 'opt-out' system of consent. Both juries also recommended the use of incentives to improve immunisation uptake and immunisation course completion. CONCLUSIONS: Eliciting adolescent views and including the perspectives of adolescents in discussions and development of strategies to improve engagement in the school based immunisation program provided valuable insight from the group most impacted by these policies and practices. Specifically, incorporation of adolescent and community views using citizens' juries may lead to greater overall support from the community as their values and needs are more accurately reflected.


Asunto(s)
Participación de la Comunidad , Investigación sobre Servicios de Salud , Programas de Inmunización/organización & administración , Adolescente , Adulto , Femenino , Humanos , Consentimiento Informado , Masculino , Persona de Mediana Edad , Cooperación del Paciente , Educación del Paciente como Asunto , Opinión Pública , Instituciones Académicas , Australia del Sur , Vacunación/psicología , Adulto Joven
14.
Health Policy ; 115(1): 60-7, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-23992757

RESUMEN

End of life care for people with advanced chronic disease is a growing international imperative, with the majority of deaths in the world now related to chronic disease. The provision of care that meets the needs of people with advanced chronic disease must be guided by appropriate policy. The key policy areas impacting directly on end of life care are related to chronic disease, palliative care and, increasingly, aged care. This paper describes the outcomes of an audit of Australian chronic disease and end of life/palliative care policies. We identified that chronic disease health policies/strategies demonstrate a focus on prevention, early intervention and management, with scant recognition of end of life care needs. The majority assume that a referral to palliative care will address end of life care needs for people with chronic disease. By contrast, palliative care policies recognise the need for the incorporation of a palliative approach into advanced chronic disease care, but there are few connections between these two policy areas. Whilst palliative care policies intersect with carer and advance care planning policies, chronic disease policy does not. Key concerns requiring consideration when developing policy in this area are discussed and possible policy options identified.


Asunto(s)
Enfermedad Crónica/terapia , Política de Salud , Cuidado Terminal , Adolescente , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Australia/epidemiología , Enfermedad Crónica/epidemiología , Enfermedad Crónica/mortalidad , Humanos , Persona de Mediana Edad , Mortalidad , Cuidados Paliativos/organización & administración , Cuidados Paliativos/estadística & datos numéricos , Gobierno Estatal , Cuidado Terminal/organización & administración , Cuidado Terminal/estadística & datos numéricos , Adulto Joven
15.
Aust Health Rev ; 37(4): 474-81, 2013 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-23972084

RESUMEN

OBJECTIVE: To explore service availability and accessibility for people with advanced chronic obstructive pulmonary disease (COPD) and their carers and strategies for improvement, including the potential role of a COPD care co-ordinator in ensuring best-practice care in the Australian context. METHODS: This qualitative study used focus groups and interviews with health professionals, carers and consumers to explore gaps and restrictions in services, barriers to access and the functioning of services. Data were analysed deductively. RESULTS: Key themes arising from the data included difficulties around access to care, lack of continuity of care, poor care co-ordination, the need for active disease management as well as supportive care, and poor communication. A COPD care co-ordinator was suggested as an effective strategy for ensuring best-practice care. CONCLUSIONS: People with advanced COPD often have difficulty navigating the acute, primary and community care systems to deal with the multiple services that they may require. Lack of communication between health professionals and services is frequently a significant issue. A COPD care co-ordinator, encompassing advanced nursing skills, could ensure that care is centred on the needs of the person and their carer and that they receive continuing, appropriate and accessible care as they approach the end of their life.


Asunto(s)
Práctica Clínica Basada en la Evidencia , Manejo de Atención al Paciente , Rol Profesional , Enfermedad Pulmonar Obstructiva Crónica/terapia , Benchmarking , Accesibilidad a los Servicios de Salud , Necesidades y Demandas de Servicios de Salud , Humanos , Investigación Cualitativa , Índice de Severidad de la Enfermedad
16.
Vaccine ; 31(30): 3059-64, 2013 Jun 26.
Artículo en Inglés | MEDLINE | ID: mdl-23664996

RESUMEN

OBJECTIVES: Adolescent immunizations such as human papillomavirus vaccine have been implemented through school based immunization programs (SBIPs) in Australia. We assessed community attitudes toward immunization of adolescents though SBIPs. METHODS: A cross-sectional population survey of rural and metropolitan households in South Australia in 2011. Univariate and multiple regression analyses identified predictors of support for a SBIP. RESULTS: Participation rate was 57.3% with 1926 adults interviewed. Overall, 75.9% regarded school as the best place to offer adolescent immunizations, with 16.4% preferring the family physician. Parents of high school students were most supportive (88.4%) of a SBIP with 87.9% of their adolescents reported as having participated in the program. Adults 18-34 years (79.4%) were more likely to support a SBIP compared to older adults (68.7% of >55 years) [adjusted OR=2.39, p=0.002] and men were more supportive (80.3%) than women (71.7%) [adjusted OR=1.54, p=0.003]. Reasons for participation in the SBIP included convenience (39.9%), public funding for the service (32.4%), and confidence in immunization recommendations (21.0%). CONCLUSIONS: Public support for the SBIP was very high particularly amongst parents whose adolescent/s had participated in the program.


Asunto(s)
Programas de Inmunización , Vacunación Masiva/psicología , Vacunas contra Papillomavirus/administración & dosificación , Apoyo Social , Adolescente , Adulto , Estudios Transversales , Femenino , Humanos , Masculino , Padres , Características de la Residencia , Población Rural , Instituciones Académicas , Australia del Sur , Adulto Joven
17.
Nucl Med Biol ; 40(4): 458-63, 2013 May.
Artículo en Inglés | MEDLINE | ID: mdl-23454250

RESUMEN

INTRODUCTION: Dysregulation of the hepatocyte growth factor (HGF)/MET pathway has been implicated in various cancers. Rilotumumab is an investigational, fully human monoclonal antibody that binds and neutralizes HGF. The purpose of this study was to evaluate the efficacy of rilotumumab in a U-87 MG mouse xenograft tumor model using (18)F-FDG and (18)F-FLT PET. METHODS: U-87 MG tumor-bearing nude mice received rilotumumab or control IgG2. In the dose response study, increasing doses of rilotumumab (10, 30, 100, 300, or 500 µg) were administered, and mice were evaluated with (18)F-FDG PET at baseline and 7 days post-treatment. In the time course study, 300 µg of rilotumumab twice per week was used for the treatment, and mice were evaluated over 7 days using (18)F-FDG and (18)F-FLT PET. RESULTS: In the dose response study, rilotumumab at doses of 300 and 500 µg was similarly effective against tumor growth. Treatment with 300 and 500 µg rilotumumab inhibited (18)F-FDG accumulation with significant decreases of -37% and -40% in the percent injected dose per gram of tissue (%ID/g), respectively. In the time course study, treatment with 300 µg rilotumumab inhibited (18)F-FDG and (18)F-FLT accumulation with a maximum %ID/g of -41% and -64%, respectively. No apparent differences between the use of either tracer to evaluate rilotumumab efficacy were observed. CONCLUSIONS: Rilotumumab inhibited (18)F-FDG and (18)F-FLT accumulation as early as 2 and 4 days after treatment, respectively, in a mouse tumor model. Further studies to evaluate (18)F-FDG PET imaging as an early tumor response marker for rilotumumab are warranted. Rilotumumab is currently being tested in patients with MET-positive, advanced gastric and gastroesophageal cancer.


Asunto(s)
Anticuerpos Monoclonales/farmacología , Antineoplásicos/farmacología , Glioblastoma/diagnóstico por imagen , Glioblastoma/tratamiento farmacológico , Tomografía de Emisión de Positrones , Ensayos Antitumor por Modelo de Xenoinjerto , Animales , Anticuerpos Monoclonales/uso terapéutico , Anticuerpos Monoclonales Humanizados , Antineoplásicos/uso terapéutico , Transporte Biológico/efectos de los fármacos , Biomarcadores/metabolismo , Línea Celular Tumoral , Proliferación Celular/efectos de los fármacos , Didesoxinucleósidos , Relación Dosis-Respuesta a Droga , Femenino , Fluorodesoxiglucosa F18/metabolismo , Glioblastoma/metabolismo , Glioblastoma/patología , Factor de Crecimiento de Hepatocito/metabolismo , Humanos , Ratones , Terapia Molecular Dirigida , Factores de Tiempo
19.
Med Teach ; 34(11): 883-7, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22817382

RESUMEN

Healthcare profession students participate in a range of clinical placements within multidisciplinary health care settings. Often these placements offer students opportunities to participate in activities with staff and/or students from other healthcare disciplines. Although health service staff generally recognise the importance of clinical placements for student learning, they sometimes feel overwhelmed by workload and resource constraints. As a consequence, the potential of the clinical team to contribute to student learning may not be fully realised. A key element of successful clinical placement programs across all healthcare disciplines is a coordinated approach to the development and management of complex university/health service partnerships. Explicit mechanisms to support clinical team members in their teaching roles can also contribute to develop and sustain staff capacity for student supervision, as appropriate recognition of clinical staff contributes to student learning. Twelve tips are offered for consideration by universities, health services and clinical staff when planning and implementing student clinical placements in multidisciplinary healthcare settings.


Asunto(s)
Prácticas Clínicas/organización & administración , Personal de Salud/educación , Relaciones Interprofesionales , Grupo de Atención al Paciente/organización & administración , Competencia Clínica , Humanos , Aprendizaje , Carga de Trabajo
20.
J Law Med ; 20(2): 400-9, 2012 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-23431856

RESUMEN

Advance care-planning conversations with people who have chronic obstructive pulmonary disease (COPD) are important because of the severity of the disease and the unpredictable timing of death. Advance care-planning is a process involving conversations about future wishes, including end-of-life care and the appointment of a substitute decision-maker. This qualitative research explored issues relating to end-of-life decisions with 15 individuals and their carers living in the community who had severe COPD. Findings indicated that, although patients and carers would welcome the opportunity to discuss end-of-life decisions, almost no conversation about care-planning had been initiated by health professionals with any of the participants. It also demonstrated that professional support is required to assist with advance care-planning and the completion of the legal advance directive documents.


Asunto(s)
Planificación Anticipada de Atención , Enfermedad Pulmonar Obstructiva Crónica/epidemiología , Anciano , Actitud Frente a la Muerte , Australia , Cuidadores , Femenino , Humanos , Entrevistas como Asunto , Masculino , Persona de Mediana Edad , Índice de Severidad de la Enfermedad
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