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1.
Hum Resour Health ; 21(1): 95, 2023 Dec 13.
Artigo em Inglês | MEDLINE | ID: mdl-38093376

RESUMO

BACKGROUND: Across the care economy there are major shortages in the health and care workforce, as well as high rates of attrition and ill-defined career pathways. The aim of this study was to evaluate current evidence regarding methods to improve care worker recruitment, retention, safety, and education, for the professional care workforce. METHODS: A rapid review of comparative interventions designed to recruit, retain, educate and care for the professional workforce in the following sectors: disability, aged care, health, mental health, family and youth services, and early childhood education and care was conducted. Embase and MEDLINE databases were searched, and studies published between January 2015 and November 2022 were included. We used the Quality Assessment tool for Quantitative Studies and the PEDro tools to evaluate study quality. RESULTS: 5594 articles were initially screened and after applying the inclusion and exclusion criteria, 30 studies were included in the rapid review. Studies most frequently reported on the professional nursing, medical and allied health workforces. Some studies focused on the single domain of care worker education (n = 11) while most focused on multiple domains that combined education with recruitment strategies, retention strategies or a focus on worker safety. Study quality was comparatively low with a median PEDro score of 5/10, and 77% received a weak rating on the Quality Assessment tool for Quantitative Studies. Four new workforce strategies emerged; early career rural recruitment supports rural retention; workload management is essential for workforce well-being; learning must be contextually relevant; and there is a need to differentiate recruitment, retention, and education strategies for different professional health and care workforce categories as needs vary. CONCLUSIONS: Given the critical importance of recruiting and retaining a strong health and care workforce, there is an immediate need to develop a cohesive strategy to address workforce shortfalls. This paper presents initial evidence on different interventions to address this need, and to inform care workforce recruitment and retention. Rapid Review registration PROSPERO 2022 CRD42022371721 Available from: https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42022371721.


Assuntos
Aprendizagem , Serviços de Saúde Rural , Humanos , Pré-Escolar , Adolescente , Idoso , Recursos Humanos , Pessoal Técnico de Saúde , Carga de Trabalho , Saúde Mental
2.
Gynecol Oncol ; 167(2): 213-225, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-36192237

RESUMO

OBJECTIVE: High-grade serous ovarian cancer, the most frequent type of ovarian cancer, has a poor prognosis and novel treatments are needed for patients with platinum resistant/refractory disease. New therapeutic strategies targeting cell cycle checkpoints, including CHK1 inhibition with prexasertib, may help improve clinical response and overcome resistance. METHODS: Patients with ovarian cancer (N = 169) were assigned to 4 cohorts as part of the Phase 2 multicenter trial (NCT03414047): Cohort 1: platinum resistant, BRCA-wildtype with ≥3 lines prior therapy; Cohort 2: platinum resistant BRCA-wildtype with <3 lines prior therapy; Cohort 3: platinum resistant, BRCA-mutated with prior PARP inhibitor therapy; Cohort 4: platinum refractory, BRCA-mutated, or BRCA-wildtype with any number of prior therapy lines. The primary endpoint was objective response rate (ORR) and secondary endpoints included disease control rate (DCR), and safety. DNA from tumor biopsies was sequenced to identify biomarkers. RESULTS: The ORR in platinum resistant patients (Cohorts 1--3) was 12.1%, and 6.9% in platinum refractory patients. In platinum resistant patients, DCR was 37.1%, and consistent across cohorts. In platinum refractory patients, DCR was 31.0%. Consistent with the prexasertib mechanism of action, the most common treatment related adverse events of all grades included thrombocytopenia, neutropenia, fatigue, nausea, and anemia. CONCLUSIONS: Prexasertib demonstrated durable single agent activity in a subset of patients with recurrent ovarian cancer regardless of clinical characteristics, BRCA status, or prior therapies, including PARPi. There was no obvious correlation with genomic alterations in responders vs non-responders, emphasizing the need for alternative biomarker approaches for responder identification.


Assuntos
Neoplasias Ovarianas , Platina , Humanos , Feminino , Platina/uso terapêutico , Inibidores de Poli(ADP-Ribose) Polimerases/efeitos adversos , Recidiva Local de Neoplasia/tratamento farmacológico , Recidiva Local de Neoplasia/genética , Recidiva Local de Neoplasia/patologia , Carcinoma Epitelial do Ovário/tratamento farmacológico , Neoplasias Ovarianas/tratamento farmacológico , Neoplasias Ovarianas/genética , Neoplasias Ovarianas/patologia , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos
3.
Environ Sci Technol ; 54(5): 2851-2858, 2020 03 03.
Artigo em Inglês | MEDLINE | ID: mdl-31976661

RESUMO

The removal and inactivation of infectious human norovirus (HuNoV) is a major focus in water purification, but the effectiveness of disinfection processes on norovirus is largely unknown owing to the lack of a readily available infectivity assay. In particular, norovirus behavior through unit processes may be over- or underestimated using current approaches for assessing HuNoV infectivity (e.g., surrogates, molecular methods). Here, we fill a critical knowledge gap by estimating inactivation data for HuNoV after exposure to UV254, a commonly used disinfection process in the water industry. Specifically, we used a PCR-based approach that accurately tracks positive-sense single-stranded RNA virus inactivation without relying on culturing methods. We first confirmed that the approach is valid with a culturable positive-sense single-stranded RNA human virus, coxsackievirus B5, by applying both qPCR- and culture-based methods to measure inactivation kinetics with UV254 treatment. We then applied the qPCR-based method to establish a UV254 inactivation curve for HuNoV (inactivation rate constant = 0.27 cm2 mJ-1). Based on a comparison with previously published data, HuNoV exhibited similar UV254 susceptibility compared with other enteric single-stranded RNA viruses (e.g., Echovirus 12, feline calicivirus) but degraded much faster than MS2 (inactivation rate constant = 0.14 cm2 mJ-1). In addition to establishing a HuNoV inactivation rate constant, we developed an approach using a single qPCR assay that can be applied to estimate HuNoV inactivation in UV254 disinfection systems.


Assuntos
Infecções por Caliciviridae , Calicivirus Felino , Norovirus , Animais , Gatos , Desinfecção , Humanos , Inativação de Vírus
4.
Nature ; 511(7508): 224-7, 2014 Jul 10.
Artigo em Inglês | MEDLINE | ID: mdl-25008531

RESUMO

Emerging fungal pathogens pose a greater threat to biodiversity than any other parasitic group, causing declines of many taxa, including bats, corals, bees, snakes and amphibians. Currently, there is little evidence that wild animals can acquire resistance to these pathogens. Batrachochytrium dendrobatidis is a pathogenic fungus implicated in the recent global decline of amphibians. Here we demonstrate that three species of amphibians can acquire behavioural or immunological resistance to B. dendrobatidis. Frogs learned to avoid the fungus after just one B. dendrobatidis exposure and temperature-induced clearance. In subsequent experiments in which B. dendrobatidis avoidance was prevented, the number of previous exposures was a negative predictor of B. dendrobatidis burden on frogs and B. dendrobatidis-induced mortality, and was a positive predictor of lymphocyte abundance and proliferation. These results suggest that amphibians can acquire immunity to B. dendrobatidis that overcomes pathogen-induced immunosuppression and increases their survival. Importantly, exposure to dead fungus induced a similar magnitude of acquired resistance as exposure to live fungus. Exposure of frogs to B. dendrobatidis antigens might offer a practical way to protect pathogen-naive amphibians and facilitate the reintroduction of amphibians to locations in the wild where B. dendrobatidis persists. Moreover, given the conserved nature of vertebrate immune responses to fungi and the fact that many animals are capable of learning to avoid natural enemies, these results offer hope that other wild animal taxa threatened by invasive fungi might be rescued by management approaches based on herd immunity.


Assuntos
Anfíbios/imunologia , Anfíbios/microbiologia , Quitridiomicetos/imunologia , Micoses/imunologia , Animais , Antígenos de Fungos/imunologia , Proliferação de Células , Contagem de Linfócitos , Linfócitos/citologia , Micoses/prevenção & controle , Densidade Demográfica , Análise de Sobrevida
5.
Ecol Lett ; 22(5): 817-825, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30816626

RESUMO

Global climate change is increasing the frequency of unpredictable weather conditions; however, it remains unclear how species-level and geographic factors, including body size and latitude, moderate impacts of unusually warm or cool temperatures on disease. Because larger and lower-latitude hosts generally have slower acclimation times than smaller and higher-latitude hosts, we hypothesised that their disease susceptibility increases under 'thermal mismatches' or differences between baseline climate and the temperature during surveying for disease. Here, we examined how thermal mismatches interact with body size, life stage, habitat, latitude, elevation, phylogeny and International Union for Conservation of Nature (IUCN) conservation status to predict infection prevalence of the chytrid fungus Batrachochytrium dendrobatidis (Bd) in a global analysis of 32 291 amphibian hosts. As hypothesised, we found that the susceptibility of larger hosts and hosts from lower latitudes to Bd was influenced by thermal mismatches. Furthermore, hosts of conservation concern were more susceptible than others following thermal mismatches, suggesting that thermal mismatches might have contributed to recent amphibian declines.


Assuntos
Quitridiomicetos , Micoses , Altitude , Anfíbios , Animais , Tamanho Corporal , Prevalência
6.
Proc Natl Acad Sci U S A ; 112(28): 8667-71, 2015 Jul 14.
Artigo em Inglês | MEDLINE | ID: mdl-26069208

RESUMO

Infectious diseases of humans, wildlife, and domesticated species are increasing worldwide, driving the need to understand the mechanisms that shape outbreaks. Simultaneously, human activities are drastically reducing biodiversity. These concurrent patterns have prompted repeated suggestions that biodiversity and disease are linked. For example, the dilution effect hypothesis posits that these patterns are causally related; diverse host communities inhibit the spread of parasites via several mechanisms, such as by regulating populations of susceptible hosts or interfering with parasite transmission. However, the generality of the dilution effect hypothesis remains controversial, especially for zoonotic diseases of humans. Here we provide broad evidence that host diversity inhibits parasite abundance using a meta-analysis of 202 effect sizes on 61 parasite species. The magnitude of these effects was independent of host density, study design, and type and specialization of parasites, indicating that dilution was robust across all ecological contexts examined. However, the magnitude of dilution was more closely related to the frequency, rather than density, of focal host species. Importantly, observational studies overwhelmingly documented dilution effects, and there was also significant evidence for dilution effects of zoonotic parasites of humans. Thus, dilution effects occur commonly in nature, and they may modulate human disease risk. A second analysis identified similar effects of diversity in plant-herbivore systems. Thus, although there can be exceptions, our results indicate that biodiversity generally decreases parasitism and herbivory. Consequently, anthropogenic declines in biodiversity could increase human and wildlife diseases and decrease crop and forest production.


Assuntos
Biodiversidade , Doenças Parasitárias/prevenção & controle , Animais , Suscetibilidade a Doenças , Interações Hospedeiro-Parasita , Humanos
7.
Appl Environ Microbiol ; 82(18): 5653-60, 2016 09 15.
Artigo em Inglês | MEDLINE | ID: mdl-27422829

RESUMO

UNLABELLED: Sewage spills can release antibiotic-resistant bacteria into surface waters, contributing to environmental reservoirs and potentially impacting human health. Vancomycin-resistant enterococci (VRE) are nosocomial pathogens that have been detected in environmental habitats, including soil, water, and beach sands, as well as wildlife feces. However, VRE harboring vanA genes that confer high-level resistance have infrequently been found outside clinical settings in the United States. This study found culturable Enterococcus faecium harboring the vanA gene in water and sediment for up to 3 days after a sewage spill, and the quantitative PCR (qPCR) signal for vanA persisted for an additional week. Culturable levels of enterococci in water exceeded recreational water guidelines for 2 weeks following the spill, declining about five orders of magnitude in sediments and two orders of magnitude in the water column over 6 weeks. Analysis of bacterial taxa via 16S rRNA gene sequencing showed changes in community structure through time following the sewage spill in sediment and water. The spread of opportunistic pathogens harboring high-level vancomycin resistance genes beyond hospitals and into the broader community and associated habitats is a potential threat to public health, requiring further studies that examine the persistence, occurrence, and survival of VRE in different environmental matrices. IMPORTANCE: Vancomycin-resistant enterococci (VRE) are harmful bacteria that are resistant to the powerful antibiotic vancomycin, which is used as a last resort against many infections. This study followed the release of VRE in a major sewage spill and their persistence over time. Such events can act as a means of spreading vancomycin-resistant bacteria in the environment, which can eventually impact human health.


Assuntos
Biota , Enterococcus faecium/isolamento & purificação , Sedimentos Geológicos/microbiologia , Esgotos , Enterococos Resistentes à Vancomicina/isolamento & purificação , Microbiologia da Água , Poluição da Água , Carga Bacteriana , Proteínas de Bactérias/genética , Estruturas Bacterianas , Carbono-Oxigênio Ligases/genética , DNA Bacteriano/química , DNA Bacteriano/genética , DNA Ribossômico/química , DNA Ribossômico/genética , Enterococcus faecium/classificação , Enterococcus faecium/genética , Humanos , RNA Ribossômico 16S/genética , Reação em Cadeia da Polimerase em Tempo Real , Análise de Sequência de DNA , Fatores de Tempo , Estados Unidos , Enterococos Resistentes à Vancomicina/classificação , Enterococos Resistentes à Vancomicina/genética
8.
J Environ Qual ; 45(2): 432-40, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27065389

RESUMO

Various culture-based methodologies are used in assessment of antibiotic resistance in samples collected in agroecosystems. Culture-based methods commonly involve isolating target bacteria on general or selective media and assessing growth in response to specific concentrations of antibiotics. The advantages of culture-based methods are multifold. In particular, isolation of bacteria is key to understanding phenotypic characteristics of isolates and their resistance patterns, and most national and international antibiotic resistance monitoring projects are isolate based. This review covers current knowledge of bacterial groups and antibiotics commonly targeted in resistance studies using bacterial culture and discusses the range in methods used, data interpretation, and factors supporting and confounding the use of culture-based methods in assessment of antibiotic resistance. Gaps in knowledge related to study design and resistance databases are discussed. Finally, a case is made for the integration of culture-based and molecular methods to better inform our understanding of antibiotic resistance in agroecosystems.


Assuntos
Agricultura , Antibacterianos/farmacologia , Resistência Microbiana a Medicamentos , Ecossistema , Bactérias , Testes de Sensibilidade Microbiana
10.
Appl Environ Microbiol ; 81(7): 2489-94, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25636843

RESUMO

The opportunistic pathogen Vibrio vulnificus occurs naturally in estuarine habitats and is readily cultured from water and oysters under warm conditions but infrequently at ambient conditions of <15°C. The presence of V. vulnificus in other habitats, such as sediments and aquatic vegetation, has been explored much less frequently. This study investigated the ecology of V. vulnificus in water by culture and quantitative PCR (qPCR) and in sediment, oysters, and aquatic vegetation by culture. V. vulnificus samples were taken from five sites around Tampa Bay, FL. Levels determined by qPCR and culture were significantly correlated (P = 0.0006; r = 0.352); however, V. vulnificus was detected significantly more frequently by qPCR (85% of all samples) compared to culture (43%). Culturable V. vulnificus bacteria were recovered most frequently from oyster samples (70%), followed by vegetation and sediment (∼50%) and water (43%). Water temperature, which ranged from 18.5 to 33.4°C, was positively correlated with V. vulnificus concentrations in all matrices but sediments. Salinity, which ranged from 1 to 35 ppt, was negatively correlated with V. vulnificus levels in water and sediments but not in other matrices. Significant interaction effects between matrix and temperature support the hypothesis that temperature affects V. vulnificus concentrations differently in different matrices and that sediment habitats may serve as seasonal reservoirs for V. vulnificus. V. vulnificus levels in vegetation have not been previously measured and reveal an additional habitat for this autochthonous estuarine bacterium.


Assuntos
Sedimentos Geológicos/microbiologia , Ostreidae/microbiologia , Plantas/microbiologia , Vibrio vulnificus/isolamento & purificação , Animais , Organismos Aquáticos/microbiologia , Estuários , Florida , Golfo do México , Reação em Cadeia da Polimerase em Tempo Real , Salinidade , Água do Mar/microbiologia , Temperatura , Vibrio vulnificus/genética
11.
Aust Health Rev ; 39(2): 127-135, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25607113

RESUMO

OBJECTIVE: This paper analyses an organisational development project that aimed to change the organisational culture and improve people management systems and processes. The questions addressed were: was the change process a success; how was success defined; and what were the barriers to its progress? METHODS: We examined the process of change over a 3-year period. The organisational development intervention is described and analysed. Qualitative methods, including document review, in-depth interviews and focus groups, participant observation, newsletters and diary entries were used to gather the data. A variant of competing values was used to analyse the data. RESULTS: We sought to build trust with all managers and encouraged reflection by conducting feedback sessions, presentations, workshops and one-on-one and group discussions. A cross-site action group was established to encourage organisation-wide participation in the project. However, it was clear that stakeholders had different understandings and perceptions of the problems facing the organisation. The project faltered when a leadership development intervention was organised. CONCLUSIONS: The existence of at least four different organisational 'worlds' and identities, according to different professional groupings with different goals, languages and values, was evident. The relationship between the researcher and subjects was key in terms of whether the researcher is seen as an 'expert' or as a 'facilitator'. In bringing about change, we need to work with the Chief Executive Officer in empowering others. Hence, the researchers need to engage in continual dialogue across boundaries and within groups as well as at individual levels to provide support for organisational change.


Assuntos
Hospitais Rurais/organização & administração , Austrália , Grupos Focais , Humanos , Entrevistas como Assunto , Cultura Organizacional , Inovação Organizacional , Pesquisa Qualitativa
12.
HERD ; 17(2): 57-76, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38411148

RESUMO

OBJECTIVE: In this study, we aim to develop and propose an evaluation method for analyzing the design of operating rooms (ORs) from the perspective of surgical teams' reported experiences and stress levels. BACKGROUND: Stress and burnout of surgical team members can lead to diminished performance and medical errors, which endangers the safety of both the patients and team members. The design and layout of the OR play a critical role in managing such stress. METHODS: To understand surgical teams' spatial needs related to their experiences and stress, we administered a survey and in-depth focus group discussions to three surgical teams from the same organization. The identified spatial needs were translated into functional scenarios and spatial metrics, essentially viewing the OR through the perspective of users. RESULTS: Our analysis revealed four integral sections-patient flow, room organization, access to facilities/medical equipment/support staff/team members, and staff well-being-identified as critical design factors associated with the experiences and stress levels of the surgical teams in the ORs. CONCLUSIONS: We expect this method to serve as a tool for evaluating the effect of the design of OR layouts on stress, thereby supporting the well-being and resiliency of surgical teams.


Assuntos
Grupos Focais , Salas Cirúrgicas , Salas Cirúrgicas/organização & administração , Humanos , Equipe de Assistência ao Paciente/organização & administração , Saúde Mental , Arquitetura Hospitalar/métodos , Inquéritos e Questionários , Esgotamento Profissional/prevenção & controle , Arquitetura de Instituições de Saúde/métodos , Estresse Ocupacional
13.
J Water Health ; 11(2): 297-310, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23708577

RESUMO

Heterotrophic bacteria resistant to tetracycline and ampicillin were assessed in waterways of the New York City metropolitan area using culture-dependent approaches and 16S rRNA gene sequence analysis of resultant isolates. Resistant microbes were detected at all 10 sampling sites in monthly research cruises on the lower Hudson River Estuary (HRE), with highest concentrations detected at nearshore sites. Higher frequency sampling was conducted in Flushing Bay, to enumerate resistant microbes under both dry and wet weather conditions. Concentrations of ampicillin- and tetracycline-resistant bacteria, in paired samples, were positively correlated with one another and increased following precipitation. Counts of the fecal indicator, Enterococcus, were positively correlated with levels of resistant bacteria, suggesting a shared sewage-associated source. Analysis of 16S rRNA from isolates identified a phylogenetically diverse group of resistant bacteria, including genera containing opportunistic pathogens. The occurrence of Enterobacteriaceae, a family of enteric bacteria, was found to be significantly higher in resistant isolates compared to total heterotrophic bacteria and increased following precipitation. This study is the first to document the widespread distribution of antibiotic-resistant bacteria in the HRE and to demonstrate clearly a link between the abundance of antibiotic-resistant bacteria and levels of sewage-associated bacteria in an estuary.


Assuntos
Antibacterianos/farmacologia , Farmacorresistência Bacteriana , Estuários , Chuva , Rios/microbiologia , Microbiologia da Água , Bactérias/efeitos dos fármacos , Esgotos , Poluentes da Água , Tempo (Meteorologia)
15.
J Cell Physiol ; 226(4): 1044-51, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20857415

RESUMO

Fluid shear stress protects cells from TNF-α-induced apoptosis. Oscillatory fluid shear stress (OFSS) is generally perceived as physiologically relevant biophysical signal for bone cells. Here we identify several cellular mechanisms responsible for mediating the protective effects of OFSS against TNF-α-induced apoptosis in vitro. We found that exposure of MC3T3-E1 osteoblast-like cells to as little as 5 min of OFSS suppressed TNF-α-induced activation of caspase-3, cleavage of PARP and phosphorylation of histone. In contrast, H(2)O(2)-induced apoptosis was not inhibited by OFSS suggesting that OFSS might not be protecting cells from TNF-α-induced apoptosis via stimulation of global pro-survival signaling pathways. In support of this speculation, OFSS inhibition of TNF-α-induced apoptosis was unaffected by inhibitors of several pro-survival signaling pathways including pI3-kinase (LY294002), MAPK/ERK kinase (PD98059 or U0126), intracellular Ca2+ release (U73122), NO production (L-NAME), or protein synthesis (cycloheximide) that were applied to cells during exposure to OFSS and during TNF-α treatment. However, TNF-α-induced phosphorylation and degradation of IκBα was blocked by pre-exposure of cells to OFSS suggesting a more specific effect of OFSS on TNF-α signaling. We therefore focused on the mechanism of OFSS regulation of TNF-receptor 1 (TNFR1) signaling and found that OFSS (1) reduced the amount of receptor on the cell surface, (2) prevented the association of ubiquitinated RIP in TNFR1 complexes with TRADD and TRAF2, and (3) reduced TNF-α-induced IL-8 promoter activity in the nucleus. We conclude that the anti-apoptotic effect of OFSS is not mediated by activation of universal pro-survival signaling pathways. Rather, OFSS inhibits TNF-α-induced pro-apoptotic signaling which can be explained by the down-regulation of TNFR1 on the cell surface and blockade of TNFR1 downstream signaling by OFSS.


Assuntos
Osteoblastos/metabolismo , Receptores Tipo I de Fatores de Necrose Tumoral/metabolismo , Reologia , Transdução de Sinais , Estresse Mecânico , Animais , Apoptose/efeitos dos fármacos , Sinalização do Cálcio/efeitos dos fármacos , Linhagem Celular , Membrana Celular/efeitos dos fármacos , Membrana Celular/metabolismo , Citoesqueleto/efeitos dos fármacos , Citoesqueleto/metabolismo , Endocitose/efeitos dos fármacos , MAP Quinases Reguladas por Sinal Extracelular/metabolismo , Peróxido de Hidrogênio/farmacologia , Proteínas I-kappa B/metabolismo , Interleucina-8/genética , Interleucina-8/metabolismo , Espaço Intracelular/efeitos dos fármacos , Espaço Intracelular/metabolismo , Camundongos , Quinases de Proteína Quinase Ativadas por Mitógeno/metabolismo , Inibidor de NF-kappaB alfa , Óxido Nítrico/biossíntese , Osteoblastos/efeitos dos fármacos , Osteoblastos/enzimologia , Regiões Promotoras Genéticas/genética , Biossíntese de Proteínas/efeitos dos fármacos , Reologia/efeitos dos fármacos , Fator de Necrose Tumoral alfa/farmacologia , Ubiquitinação/efeitos dos fármacos
16.
Artigo em Inglês | MEDLINE | ID: mdl-34711657

RESUMO

OBJECTIVES: Breathlessness is the most significant symptom in those dying of COVID-19. Historically, though, it has often been palliated poorly at end of life. The aim of this work was to assess whether breathlessness in patients dying from COVID-19 was being managed appropriately. METHODS: A multicentre, retrospective analysis of clinical data was undertaken. Patients who had died of COVID-19 across three acute hospitals over a 2-month period were included. Those already prescribed background opioids and those who died in intensive care were excluded. Data were collected from clinical notes, where available. RESULTS: 71 patients from 18 wards (3 hospitals) were included. The median total dose of opioid and midazolam given in the last 24 hours of life (continuous subcutaneous infusion ± 'as required' medication) was 33 mg (14-55) and 15 mg (6-26), respectively. 37 patients (52%) were prescribed continuous subcutaneous infusions. There were 426 recorded respiratory rates of at least 25 breaths per minute, for which an opioid or benzodiazepine was given in 113 (27%) of instances. CONCLUSIONS: Less than a third of episodes of breathlessness, as measured by respiratory rate, were palliated with anticipatory medicines. Specific palliative care guidelines for COVID-19 are necessary but may not always be followed.

17.
J Cell Physiol ; 223(2): 435-41, 2010 May.
Artigo em Inglês | MEDLINE | ID: mdl-20112285

RESUMO

Cellular mechanotransduction, the process of converting mechanical signals into biochemical responses within cells, is a critical aspect of bone health. While the effects of mechanical loading on bone are well recognized, elucidating the specific molecular pathways involved in the processing of mechanical signals by bone cells represents a challenge and an opportunity to identify therapeutic strategies to combat bone loss. In this study we have for the first time examined the relationship between the nucleocytoplasmic shuttling transcription factor nuclear matrix protein-4/cas interacting zinc finger protein (Nmp4/CIZ) and beta-catenin signaling in response to a physiologic mechanical stimulation (oscillatory fluid shear stress, OFSS) in osteoblasts. Using calvaria-derived osteoblasts from Nmp4-deficient and wild-type mice, we found that the normal translocation of beta-catenin to the nucleus in osteoblasts that is induced by OFSS is enhanced when Nmp4/CIZ is absent. Furthermore, we found that other aspects of OFSS-induced mechanotransduction generally associated with the beta-catenin signaling pathway, including ERK, Akt, and GSK3beta activity, as well as expression of the beta-catenin-responsive protein cyclin D1 are also enhanced in cells lacking Nmp4/CIZ. Finally, we found that in the absence of Nmp4/CIZ, OFSS-induced cytoskeletal reorganization and the formation of focal adhesions between osteoblasts and the extracellular substrate is qualitatively enhanced, suggesting that Nmp4/CIZ may reduce the sensitivity of bone cells to mechanical stimuli. Together these results provide experimental support for the concept that Nmp4/CIZ plays an inhibitory role in the response of bone cells to mechanical stimulation induced by OFSS.


Assuntos
Mecanotransdução Celular/fisiologia , Proteínas Associadas à Matriz Nuclear/metabolismo , Osteoblastos/metabolismo , Osteogênese/fisiologia , Transdução de Sinais/fisiologia , Fatores de Transcrição/metabolismo , beta Catenina/metabolismo , Animais , Reabsorção Óssea/metabolismo , Reabsorção Óssea/fisiopatologia , Reabsorção Óssea/prevenção & controle , Adesão Celular/fisiologia , Células Cultivadas , Ciclina D1/metabolismo , Citoesqueleto/metabolismo , Citoesqueleto/ultraestrutura , MAP Quinases Reguladas por Sinal Extracelular/metabolismo , Adesões Focais/fisiologia , Quinase 3 da Glicogênio Sintase/metabolismo , Glicogênio Sintase Quinase 3 beta , Camundongos , Camundongos Knockout , Proteínas Associadas à Matriz Nuclear/genética , Osteoblastos/citologia , Estimulação Física , Transporte Proteico/fisiologia , Proteínas Proto-Oncogênicas c-akt/metabolismo , Estresse Mecânico , Fatores de Transcrição/genética , beta Catenina/genética
18.
J Pediatr ; 157(2): 191-7, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20400091

RESUMO

OBJECTIVES: To determine the birth prevalence of cytomegalovirus (CMV) in a population-based sample of newborns by use of dried blood spots compared with previous studies that used established detection methods, and to evaluate risk factors and birth outcomes for congenital CMV infection. STUDY DESIGN: A total of 3972 newborn dried blood spots collected for the California Newborn Screening Program were tested for presence of CMV DNA. Demographic and pregnancy data were obtained from linked newborn screening and live-birth records. RESULTS: CMV prevalence among newborns by maternal race and ethnicity was 0.9% for blacks, 0.8% for Hispanics, 0.6% for whites, and 0.6% for Asians. Among Hispanics (n = 2053), infants who were infected had younger mothers (23 vs 26 years, P = .03), and prevalence was higher for children with no father information provided (2.6% vs 0.6%, P = .03). Overall CMV infection was associated with low birth weight (prevalence ratios [95% CI]: 3.4 [1.4-8.5]) and preterm birth (2.7 [1.4-5.1]). CMV viral loads were inversely related to birth weight and gestational age (both P = .03). CONCLUSIONS: CMV prevalence measured with dried blood spots was similar to reports using standard viral culture methods. Dried blood spots may be suitable for detection of CMV infection in newborns and warrant further evaluation. Congenital CMV infection may contribute to low birth weight and preterm birth.


Assuntos
Infecções por Citomegalovirus/sangue , Infecções por Citomegalovirus/diagnóstico , Citomegalovirus/isolamento & purificação , Triagem Neonatal/métodos , Peso ao Nascer , Infecções por Citomegalovirus/congênito , Infecções por Citomegalovirus/epidemiologia , DNA Viral/sangue , Etnicidade , Feminino , Idade Gestacional , Humanos , Recém-Nascido , Masculino , Reação em Cadeia da Polimerase , Prevalência , Fatores de Risco , Resultado do Tratamento
19.
J Health Organ Manag ; 24(2): 182-99, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20698193

RESUMO

PURPOSE: This paper aims to explore the attitudes of managers and employees to high performance work practices (HPWS) in a medium sized rural Australian hospital. DESIGN/METHODOLOGY/APPROACH: The study consists of two stages. Stage one involved a qualitative investigation consisting of interviews and focus group sessions with senior, middle and line management at the hospital. Bowen and Ostroffs framework was used to examine how strategic HRM was understood, interpreted and operationalised across the management hierarchy. Stage one investigates the views of managers concerning the implementation of strategic HRM/HPWS. Stage two consisted of a questionnaire administered to all hospital employees. The mediation effects of social identification on the relationship between high performance work systems and affective commitment and job satisfaction are examined. The purpose of stage two was to investigate the views and effects of SHRM/HPWS on employees. It should be noted that HPWS and strategic HRM are used inter-changeably in this paper. FINDINGS: At the management level the importance of distinctiveness, consistency and consensus in the interpretation of strategic HRM/HPWS practices across the organization was discovered. Findings indicate that social identification mediates the relationship between HPWS and affective commitment and also mediates the relationship between HPWS and job satisfaction. PRACTICAL IMPLICATIONS: High performance work systems may play a crucial role facilitating social identification at the unit level. Such practices and management support is likely to provide benefits in terms of high performing committed employees. ORIGINALITY/VALUE: The paper argues that team leaders and managers play a key role in building social identification within the team and that organizations need to understand this role and provide recognition, reward, education and support to their middle and lower managers.


Assuntos
Atitude do Pessoal de Saúde , Hospitais Rurais/organização & administração , Satisfação no Emprego , Equipe de Enfermagem , Carga de Trabalho , Austrália , Grupos Focais , Humanos , Estudos de Casos Organizacionais , Inovação Organizacional
20.
Food Environ Virol ; 12(1): 20-27, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31664651

RESUMO

Quantitative PCR (qPCR) is a convenient tool for monitoring virus concentrations in water and wastewater treatment trains, though it only informs about virus presence, but not infectivity. This limitation can be overcome if the relationship between infectivity loss and genome decay induced by a given disinfectant is known. Here, we performed inactivation experiments using two human enteroviruses, Coxsackievirus B5 and Echovirus 11, with three disinfection methods: low-pressure ultraviolet light (UV254), free chlorine (FC), and ozone. We compared the inactivation rates as measured by culturing to the decay rates of the whole genome, to evaluate the extent of qPCR-measurable genome damage as a function of inactivation. To determine genome damage, we used an approach that estimates damage across the full viral genome from the measured decay of multiple amplicons distributed across the viral genome. Correlations between inactivation and genome decay were observed for all viruses and all disinfection treatments, but results showed that even among closely related viruses, disinfection methods can damage the viral genome to different extents and that genome damage does not necessarily translate to inactivation. For both viruses, UV254 treatment had the closest relationship between inactivation and genome decay and with ozone, the rate of genome decay exceeded the inactivation rate. Finally, for FC, the ratios between methods were vastly different between viruses. This work provides the basis to relate qPCR measurements to infectivity loss and enables the establishment of molecular monitoring tools for assessing enterovirus inactivation during disinfection treatments of water and wastewater.


Assuntos
Cloro/farmacologia , Desinfetantes/farmacologia , Enterovirus Humano B/genética , Genoma Viral/efeitos dos fármacos , Genoma Viral/efeitos da radiação , Ozônio/farmacologia , Enterovirus Humano B/efeitos dos fármacos , Enterovirus Humano B/efeitos da radiação , Humanos , Raios Ultravioleta , Inativação de Vírus/efeitos dos fármacos , Inativação de Vírus/efeitos da radiação
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