Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 53
Filtrar
Mais filtros

Base de dados
Tipo de documento
Intervalo de ano de publicação
1.
Intern Med J ; 52(10): 1768-1772, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-34092003

RESUMO

BACKGROUND: Training in medicine is highly demanding and coincides with critical life tasks including relationship development, childbearing and rearing. The rigid requirements of training programmes risk precluding successful achievement of these extracurricular roles, forcing choices between work and other life commitments. Flexible employment structures that facilitate the development of high-quality physicians are needed. AIM: To assess the outcomes of 2 novel flexible training positions in Rheumatology. METHODS: The clinical department, trainees and senior administration designed flexible, part-time advanced training positions in rheumatology. We sought to deliver excellent training, supervision and support while ensuring safe, efficient clinical service delivery within existing systems and cultures. Barriers to implementation were actively identified. We rejected job share arrangements in favour of independent part-time positions anchored to departmental education, clinical and trainee needs. The outcomes of these positions have been determined through regular trainee meetings, clinic activity and costs. RESULTS: Trainees achieved all training requirements, reported high levels of job satisfaction, strong professional development, improved work-life balance and reduction of stress. Outpatient events increased and waiting times have decreased. We estimate that increased rebatable outpatient services have rendered the positions cost neutral. CONCLUSION: Flexible training positions can enhance clinical departments while enabling high-quality training for junior doctors. Further work should consider longer term outcomes and application to different clinical and training settings.


Assuntos
Reumatologia , Humanos , Projetos Piloto , Corpo Clínico Hospitalar/educação , Satisfação no Emprego , Atenção à Saúde
2.
Intern Med J ; 52(1): 121-124, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35060290

RESUMO

The Pfizer/BioNtech BNT162b2 is a major vaccine used in the Australian COVID-19 immunisation programme. We report on BNT162b2 safety in the observation period in a dedicated vaccination clinic linked to a quaternary teaching hospital. We performed a retrospective review of medical records for 57 842 vaccinations, and describe the model of care and adverse event rate at the clinic during its first 2 months of operation. A total of 243 adverse events following immunisation (0.42% of total vaccine doses) were recorded in the immediate observation period post-vaccination, which were predominantly immunisation stress-related responses. Of the 110 patients who experienced an adverse event with their first dose of the vaccine, 90% returned for their second dose of the vaccine, with 87% not reporting any further adverse reaction with the subsequent dose. Nineteen (0.03% of total doses) people were reviewed for an allergic reaction, of which 10 (53%) reported a history of prior allergies. A female predominance was present in both total adverse reactions (70%) and allergic vaccine reactions (79%). Only two patients experienced anaphylaxis (0.003% of total doses), in keeping with low rates of adverse reactions to the BNT162b2 vaccine in the current literature. Overall, the present study reinforces the safety of BNT162b2 in the Australian population, describes vaccination completion rates after adverse events and identifies predisposing factors for rare allergic reactions to the vaccine.


Assuntos
Anafilaxia , COVID-19 , Austrália/epidemiologia , Vacina BNT162 , Vacinas contra COVID-19 , Feminino , Humanos , Vacinação em Massa , Estudos Retrospectivos , SARS-CoV-2 , Vacinação/efeitos adversos
3.
Int J Health Plann Manage ; 37(3): 1229-1237, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35146799

RESUMO

The COVID-19 pandemic is an unfolding crisis which is continually testing the resilience of healthcare organisations. In this context, a key requirement for executives, managers and frontline staff is continually adapting, learning and coping with complexity under pressure to deliver high quality and safe care. Sydney Local Health District has responded to the COVID-19 crisis, in part, through the pivoting of rpavirtual, a newly established virtual health service, to deliver an innovative model of care in a clinically rigorous and safe manner. Through reviewing the rapid evolution of rpavirtual's purpose, implementation challenges and impact, we investigate how it has displayed resilience and derive key lessons for health organisations.


Assuntos
COVID-19 , Atenção à Saúde , Humanos , Organizações , Pandemias , SARS-CoV-2
4.
BMC Public Health ; 21(1): 225, 2021 01 27.
Artigo em Inglês | MEDLINE | ID: mdl-33504347

RESUMO

BACKGROUND: The first COVID-19 cases were diagnosed in Australia on 25 January 2020. Initial epidiemiology showed that the majority of cases were in returned travellers from overseas. One aspect of Public Health response was to introduce compulsory 14 day quarantine for all travellers returning to New South Wales (NSW) by air or sea in Special Health Accommodation (SHA). We aim to outline the establishment of a specialised health quarantine accommodation service in the context of the COVID-19 pandemic, and describe the first month of COVID-19 screening. METHODS: The SHA was established with a comprehensive governance structure, remote clinical management through Royal Prince Alfred Virtual Hospital (rpavirtual) and site management with health care workers, NSW Police and accommodation staff. RESULTS: From 29 March to 29 April 2020, 373 returning travellers were admitted to the SHA from Sydney Airport. 88 (26.1%) of those swabbed were positive for SARS-CoV 2. The day of diagnosis of COVID-19 varied from Day 1 to Day 13, with 63.6% (n = 56) of these in the first week of quarantine. 50% of the people in the SHA were referred to rpavirtual for ongoing clinical management. Seven people required admission to hospital for ongoing clinical care. CONCLUSION: The Public Health response to COVID-19 in Australia included early and increased case detection through testing, tracing of contacts of confirmed cases, social distancing and prohibition of gatherings. In addition to these measures, the introduction of mandated quarantine for travellers to Australia was integral to the successful containment of COVID-19 in NSW and Australia through the prevention of transmission locally and interstate from returning travellers.


Assuntos
COVID-19/prevenção & controle , Doenças Transmissíveis Importadas/prevenção & controle , Serviços de Saúde , Saúde Pública , Quarentena/legislação & jurisprudência , Viagem/legislação & jurisprudência , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Austrália/epidemiologia , COVID-19/epidemiologia , Criança , Pré-Escolar , Doenças Transmissíveis Importadas/epidemiologia , Feminino , Humanos , Lactente , Masculino , Pessoa de Meia-Idade , New South Wales/epidemiologia , Adulto Jovem
5.
BMC Health Serv Res ; 21(1): 108, 2021 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-33522941

RESUMO

BACKGROUND: A barrier to the uptake of robotic-assisted surgery (RAS) continues to be the perceived high costs. A lack of detailed costing information has made it difficult for public hospitals in particular to determine whether use of the technology is justified. This study aims to provide a detailed description of the patient episode costs and the contribution of RAS specific costs for multiple specialties in the public sector. METHODS: A retrospective descriptive costing review of all RAS cases undertaken at a large public tertiary referral hospital in Sydney, Australia from August 2016 to December 2018 was completed. This included RAS cases within benign gynaecology, cardiothoracic, colorectal and urology, with the total costs described utilizing various inpatient costing data, and RAS specific implementation, maintenance and consumable costs. RESULTS: Of 211 RAS patients, substantial variation was found between specialties with the overall median cost per patient being $19,269 (Interquartile range (IQR): $15,445 to $32,199). The RAS specific costs were $8828 (46%) made up of fixed costs including $4691 (24%) implementation and $2290 (12%) maintenance, both of which are volume dependent; and $1848 (10%) RAS consumable costs. This was in the context of 37% robotic theatre utilisation. CONCLUSIONS: There is considerable variation across surgical specialties for the cost of RAS. It is important to highlight the different cost components and drivers associated with a RAS program including its dependence on volume and how it fits within funding systems in the public sector.


Assuntos
Procedimentos Cirúrgicos Robóticos , Austrália , Humanos , Saúde Pública , Setor Público , Estudos Retrospectivos
6.
J Med Internet Res ; 23(3): e21064, 2021 03 09.
Artigo em Inglês | MEDLINE | ID: mdl-33687341

RESUMO

BACKGROUND: Australia has successfully controlled the COVID-19 pandemic. Similar to other high-income countries, Australia has extensively used telehealth services. Virtual health care, including telemedicine in combination with remote patient monitoring, has been implemented in certain settings as part of new models of care that are aimed at managing patients with COVID-19 outside the hospital setting. OBJECTIVE: This study aimed to describe the implementation of and early experience with virtual health care for community management of patients with COVID-19. METHODS: This observational cohort study was conducted with patients with COVID-19 who availed of a large Australian metropolitan health service with an established virtual health care program capable of monitoring patients remotely. We included patients with COVID-19 who received the health service, could self-isolate safely, did not require immediate admission to an in-patient setting, had no major active comorbid illness, and could be managed at home or at other suitable sites. Skin temperature, pulse rate, and blood oxygen saturation were remotely monitored. The primary outcome measures were care escalation rates, including emergency department presentation, and hospital admission. RESULTS: During March 11-29, 2020, a total of 162 of 173 (93.6%) patients with COVID-19 (median age 38 years, range 11-79 years), who were diagnosed locally, were enrolled in the virtual health care program. For 62 of 162 (38.3%) patients discharged during this period, the median length of stay was 8 (range 1-17) days. The peak of 100 prevalent patients equated to approximately 25 patients per registered nurse per shift. Patients were contacted a median of 16 (range 1-30) times during this period. Video consultations (n=1902, 66.3%) comprised most of the patient contacts, and 132 (81.5%) patients were monitored remotely. Care escalation rates were low, with an ambulance attendance rate of 3% (n=5), emergency department attendance rate of 2.5% (n=4), and hospital admission rate of 1.9% (n=3). No deaths were recorded. CONCLUSIONS: Community-based virtual health care is safe for managing most patients with COVID-19 and can be rapidly implemented in an urban Australian setting for pandemic management. Health services implementing virtual health care should anticipate challenges associated with rapid technology deployments and provide adequate support to resolve them, including strategies to support the use of health information technologies among consumers.


Assuntos
COVID-19/terapia , Serviços de Saúde Comunitária , Monitorização Fisiológica , Telemedicina , Adolescente , Adulto , Idoso , Austrália/epidemiologia , COVID-19/epidemiologia , Criança , Estudos de Coortes , Serviço Hospitalar de Emergência/estatística & dados numéricos , Feminino , Hospitalização/estatística & dados numéricos , Humanos , Masculino , Informática Médica , Pessoa de Meia-Idade , Pandemias , Alta do Paciente/estatística & dados numéricos , SARS-CoV-2 , Adulto Jovem
7.
J Nurs Adm ; 51(9): 461-467, 2021 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-34411062

RESUMO

OBJECTIVE: Nurse (RN) and nursing assistant (NA) relational quality was examined along with associations between relational quality and evaluations of teamwork and communication. BACKGROUND: RN and NA teams constitute the primary nursing care delivery method, and the quality of their relationship affects system capacity for improving patient outcomes; adverse events are linked to communication and teamwork breakdowns. METHODS: RN (N = 889) and NA (263) relational quality was examined using a cross-sectional secondary analysis from system assessment with the Agency for Healthcare Research and Quality Hospital Survey on Patient Safety Culture. RESULTS: RN and NA perceived relational quality indicated significant differences in teamwork and safety grade ratings, with both groups reporting perceived teamwork as high when patient safety grade was low. CONCLUSIONS: This study supports the benefits of improving the RN-NA teamwork-communication relationship. An enhanced RN-NA relational quality can be used by nurse leaders to optimize patient care delivery outcomes.


Assuntos
Comportamento Cooperativo , Assistentes de Enfermagem , Recursos Humanos de Enfermagem Hospitalar , Equipe de Assistência ao Paciente , Comunicação , Humanos
9.
ANZ J Surg ; 94(4): 628-633, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38450829

RESUMO

BACKGROUND: This study describes surgical and quality of life outcomes in patients with peritoneal malignancy treated by cytoreductive surgery (CRS) alone compared with a subgroup treated with CRS and hyperthermic intraperitoneal chemotherapy (HIPEC). METHODS: Peritoneal malignancy patients undergoing surgery between 2017 and 2023 were included. The cohort was divided into patients treated by CRS and HIPEC and those treated by CRS without HIPEC (including CRS only or maximal tumour debulking (MTB)). Main outcomes included surgical outcomes, survival, and quality of life. Groups were compared using non-parametric tests and log-rank test was used to compare survival curves. RESULTS: 403 had CRS and HIPEC, 25 CRS only and 15 MTB. CRS and HIPEC patients had a lower peritoneal carcinomatosis index (12.0 vs. 17.0 vs. 35.0; P < 0.001) and longer surgical operative time (9.3 vs. 8.3 vs. 5.2 h; P < 0.001), when compared to CRS only and MTB, respectively. No other significant difference between groups was observed. CONCLUSIONS: The optimal management of selected patients with resectable peritoneal malignancy incorporates a combined strategy of CRS and HIPEC. When HIPEC is not utilized, due to significant residual disease or comorbidity precluding safe delivery, CRS alone is associated with good outcomes. Hospital stay and complications are acceptable but not significantly different to the CRS and HIPEC group. CRS alone is a complex intervention requiring comparable resources with good outcomes. In view of our findings 'intention to treat' with CRS and HIPEC should be the basis for resource allocation and funding.


Assuntos
Hipertermia Induzida , Neoplasias Peritoneais , Humanos , Neoplasias Peritoneais/patologia , Quimioterapia Intraperitoneal Hipertérmica , Terapia Combinada , Qualidade de Vida , Quimioterapia do Câncer por Perfusão Regional , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Procedimentos Cirúrgicos de Citorredução , Taxa de Sobrevida , Estudos Retrospectivos
10.
J Adv Nurs ; 69(8): 1850-61, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23194385

RESUMO

AIM: To report a programme theory for pre-natal home visiting by nurses in the context of a sustained nurse home visiting programme by exploring pre- and postnatal outcomes and characteristics of the intervention that may have contributed to the outcomes. BACKGROUND: Studies have shown sustained nurse home visiting commencing pre-natally to be effective. Few studies have explored the processes by which pre-natal activities by nurses contribute to achieving effective outcomes. DESIGN: Process evaluation. METHODS: Process and outcome data from a randomized controlled trial of sustained nurse home visiting in an area of socioeconomic disadvantage in Western Sydney between 2005-2008 were collated. The pre-natal intervention focused on improving transition to parenting by supporting mothers through pregnancy. Health and service use outcome data were analysed for 208 women (111 intervention; 97 comparison receiving usual care). Five nurses delivering the intervention completed checklists detailing activities undertaken. RESULTS: Nurses provided information, psychosocial support, and health promoting activities for families. Intervention mothers had a higher rate of unassisted vaginal births than the general population. Compared with comparison mothers, intervention mothers at 4-6 weeks postnatally reported better general health and felt significantly more enabled to cope with and understand their baby and to care for themselves and their baby. CONCLUSION: Comprehensive support, in a context of enabling client-nurse relationships and continuity of carer are the ways by which antenatal nurse home visiting achieves benefits for women and infants, having an impact on both clinical outcomes such as rates of normal vaginal delivery and maternal service engagement.


Assuntos
Continuidade da Assistência ao Paciente , Serviços de Assistência Domiciliar , Avaliação de Processos e Resultados em Cuidados de Saúde , Cuidado Pós-Natal , Cuidado Pré-Natal , Adolescente , Adulto , Feminino , Humanos , Lactente , Recém-Nascido , Enfermagem Materno-Infantil , Pessoa de Meia-Idade , New South Wales , Relações Enfermeiro-Paciente , Teoria de Enfermagem , Gravidez , Ensaios Clínicos Controlados Aleatórios como Assunto , Apoio Social
11.
Aust Health Rev ; 47(6): 735-740, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38029447

RESUMO

Pelvic exenteration (PE) is a potentially curative, ultra-radical surgical procedure for the treatment of advanced pelvic tumours, which involves surgical resection of multiple pelvic organs. Delivering such a complex low-volume, high-cost surgical program presents a number of unique health management challenges, and requires an organisation-wide approach involving both clinical and administrative teams. In contrast to the United Kingdom and France, where PE services have been historically decentralised, a centralised approach was developed early on in Australia and New Zealand (ANZ) with referral of these complex patients to a small number of quaternary centres. The PE program at the authors' institution was established in 1994 and has since evolved into the highest volume PE centre in the ANZ region and the largest single institution experience globally. These achievements have required navigation of specific funding and management issues, supported from inception by a proactive and collaborative relationship with hospital administration and management. The comprehensive state-wide quaternary referral model that has been developed has subsequently been successfully applied to other complex surgical services at the authors' institution, as well as by more recently established PE centres in Australia. This article aims to summarise the authors' experience with establishing and expanding this service and the lessons learned from a health management perspective.


Assuntos
Exenteração Pélvica , Neoplasias Pélvicas , Humanos , Exenteração Pélvica/métodos , Neoplasias Pélvicas/cirurgia , Austrália , Nova Zelândia , Reino Unido , Estudos Retrospectivos
12.
J Robot Surg ; 17(5): 2237-2245, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37289337

RESUMO

This study aims to compare surgical outcomes and in-hospital cost between robotic-assisted surgery (RAS), laparoscopic and open approaches for benign gynaecology, colorectal and urological patients and to explore the association between cost and surgical complexity. This retrospective cohort study included consecutive patients undergoing RAS, laparoscopic or open surgery for benign gynaecology, colorectal or urological conditions between July 2018 and June 2021 at a major public hospital in Sydney. Patients' characteristics, surgical outcomes and in-hospital cost variables were extracted from the hospital medical records using routinely collected diagnosis-related groups (DRG) codes. Comparison of the outcomes within each surgical discipline and according to surgical complexity were performed using non-parametric statistics. Of the 1,271 patients included, 756 underwent benign gynaecology (54 robotic, 652 laparoscopic, 50 open), 233 colorectal (49 robotic, 123 laparoscopic, 61 open) and 282 urological surgeries (184 robotic, 12 laparoscopic, 86 open). Patients undergoing minimally invasive surgery (robotic or laparoscopic) presented with a significantly shorter length of hospital stay when compared to open surgical approach (P < 0.001). Rates of postoperative morbidity were significantly lower in robotic colorectal and urological procedures when compared to laparoscopic and open approaches. The total in-hospital cost of robotic benign gynaecology, colorectal and urological surgeries were significantly higher than other surgical approaches, independent of the surgical complexity. RAS resulted in better surgical outcomes, especially when compared to open surgery in patients presenting with benign gynaecology, colorectal and urological diseases. However, the total cost of RAS was higher than laparoscopic and open surgical approaches.


Assuntos
Neoplasias Colorretais , Laparoscopia , Procedimentos Cirúrgicos Robóticos , Humanos , Procedimentos Cirúrgicos Robóticos/métodos , Estudos Retrospectivos , Saúde Pública , Austrália/epidemiologia , Laparoscopia/métodos , Custos Hospitalares , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/cirurgia , Neoplasias Colorretais/cirurgia , Resultado do Tratamento
13.
World Hosp Health Serv ; 48(3): 21-4, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23342757

RESUMO

Health and hospital reform is not new on the international stage. Increasing demand for health care services due to aging populations and the increased burden of chronic disease, continued advances in medical technology (including the rapid expansion of information systems) and ever growing community expectations mean that the health care expenditure of most health systems is growing at a rate greater than GDP (OECD 2008). Most countries appear to be grappling with how they can create a sustainable health system for the future. This article provides an overview of reform occurring within the Australian and New South Wales (NSW) Public Healthcare Systems, which includes devolution to Local Health Districts, a smaller and more focused Ministry of Health, increased transparency and funding reform. The article examines the challenges this reform presents for Local Health Districts and how these challenges are being addressed locally. This reform has also highlights the competencies that are required of chief executives and other senior executives in health in managing and leading these complex health organizations.


Assuntos
Atenção à Saúde/organização & administração , Reforma dos Serviços de Saúde/métodos , Austrália , Serviços de Saúde Comunitária/organização & administração , Administradores de Instituições de Saúde , Humanos , New South Wales , Competência Profissional
14.
Int J Integr Care ; 22(3): 23, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36248070

RESUMO

Introduction: Sydney Local Health District (SLHD) is a local health district in the state of New South Wales in Australia responsible for providing health services to the centre and inner west of the Sydney metropolitan area. SLHD adopted, during the COVID-19 pandemic, an integrated virtual and community care approach to manage quarantine and protect the health and wellbeing of the population. Description: The case study describes the roles of the different agencies and teams in the first six months of the pandemic across four key functions of 1) rapid screening and testing; 2) reaching the community; 3) effective quarantine and ongoing care; and 4) infrastructure, pathology and staff education. Discussion: The "whole of system" approach proved to be an effective method of delivering care that reduced community anxiety, improved and created relationships between existing and new internal and external stakeholders, and changed the community and health sector's perspective on the importance of virtual care. Conclusion: This case study describes the importance of well-integrated, decentralised and funded public health system in response to the COVID-19 pandemic.

15.
Int J Integr Care ; 22(1): 13, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35221829

RESUMO

INTRODUCTION: Australia has been comparatively effective in preventing the transmission of COVID-19. The Sydney Local Health District [SLHD] used a "whole of health" integrated approach to respond to the pandemic. The aim of this study was to understand for whom, how and why this response worked, to inform a sustainable system transformation. METHODS: A critical realist qualitative study was conducted with 20 purposively selected key informants. Data were collected through in-depth interviews and analysed using thematic analysis guided by abduction and retroduction. The five strategies of the WHO integrated people-centred health services framework was used to guide the overall study. RESULTS: An enabling environment of a strong governance, emergency preparedness, a committed and adaptable workforce, and a strong core infrastructure underpinned SLHD's effective response. With a culture of embracing innovation, the district adapted virtual care to effectively quarantine people through their special health accommodation, and coordinate care across tertiary and community services. The established interagency relationships prior to the pandemic, enabled service directors to quickly integrate their services, which empowered and engaged the community [and staff], working across relevant sectors to provide care "where the people are"; reaching marginalised populations, and reducing community transmission. DISCUSSION AND CONCLUSION: The SLHD's progress towards a 'whole of health' approach, empowered and enabled the district to effectively work within and across sectors to address the pandemic in a people-centred manner. Sustaining the contextual conditions and mechanisms, that facilitated effective integration, will be beneficial beyond the pandemic.

16.
Aust J Prim Health ; 17(4): 300-1, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-22112697

RESUMO

People living in socioeconomically disadvantaged communities have a high burden of disease but often receive 'inverse care'. We explored a model of general practitioner and community nurse co-location in a disadvantaged community in south-west Sydney, Australia. Co-location resulted in increased referrals from doctors to the community nurse, including an increase in referrals related to psychosocial issues. This small study suggests integrated primary health care might have an impact on specialised state-based psychosocial health services.


Assuntos
Enfermagem em Saúde Comunitária/organização & administração , Medicina Geral/organização & administração , Reforma dos Serviços de Saúde , Área Carente de Assistência Médica , Humanos , Relações Interprofissionais , New South Wales , Áreas de Pobreza , Área de Atuação Profissional , Encaminhamento e Consulta , Recursos Humanos
19.
J Patient Exp ; 8: 23743735211008310, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34179437

RESUMO

Virtual models of care are seen as a sustainable solution to the growing demand for health care. This paper analyses the experience of virtual care among patients diagnosed with COVID-19 in home isolation or health hotel quarantine using a patient-reported experience questionnaire. Results found that patients respond well to virtual models of care during a pandemic. Lessons learned can inform future developments of virtual care models.

20.
J Cell Biol ; 171(2): 291-301, 2005 Oct 24.
Artigo em Inglês | MEDLINE | ID: mdl-16247028

RESUMO

Mitochondrial division requires coordinated interactions among Fis1p, Mdv1p, and the Dnm1p GTPase, which assemble into fission complexes on the outer mitochondrial membrane. The integral outer membrane protein Fis1p contains a cytoplasmic domain consisting of a tetratricopeptide repeat (TPR)-like fold and a short NH(2)-terminal helix. Although it is known that the cytoplasmic domain is necessary for assembly of Mdv1p and Dnm1p into fission complexes, the molecular details of this assembly are not clear. In this study, we provide new evidence that the Fis1p-Mdv1p interaction is direct. Furthermore, we show that conditional mutations in the Fis1p TPR-like domain cause fission complex assembly defects that are suppressed by mutations in the Mdv1p-predicted coiled coil. We also define separable functions for the Fis1p NH(2)-terminal arm and TPR-like fold. These studies suggest that the concave binding surface of the Fis1p TPR-like fold interacts with Mdv1p during mitochondrial fission and that Mdv1p facilitates Dnm1p recruitment into functional fission complexes.


Assuntos
Proteínas de Transporte/metabolismo , Mitocôndrias/metabolismo , Proteínas Mitocondriais/metabolismo , Proteínas de Saccharomyces cerevisiae/metabolismo , Saccharomyces cerevisiae/metabolismo , Proteínas Adaptadoras de Transdução de Sinal , GTP Fosfo-Hidrolases/metabolismo , Mutação , Conformação Proteica , Estrutura Terciária de Proteína , Temperatura
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA