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1.
BMC Palliat Care ; 17(1): 63, 2018 Apr 18.
Artículo en Inglés | MEDLINE | ID: mdl-29669559

RESUMEN

BACKGROUND: Self-care practice within the palliative care workforce is often discussed, yet seemingly under-researched. While palliative care professionals are required to implement and maintain effective self-care strategies, there appears little evidence to guide them. Moreover, there is an apparent need to clarify the meaning of self-care in palliative care practice. This paper reports qualitative findings within the context of a broader mixed-methods study. The aim of the present study was to explore the meaning and practice of self-care as described by palliative care nurses and doctors. METHODS: A purposive sample of 24 palliative care nurses and doctors across Australia participated in semi-structured, in-depth interviews. Interviews were digitally recorded and transcribed prior to inductive qualitative content analysis, supported by QSR NVivo data management software. RESULTS: Three overarching themes emerged from the analysis: (1) A proactive and holistic approach to promoting personal health and wellbeing to support professional care of others; (2) Personalised self-care strategies within professional and non-professional contexts; and (3) Barriers and enablers to self-care practice. CONCLUSIONS: The findings of this study provide a detailed account of the context and complexity of effective self-care practice previously lacking in the literature. Self-care is a proactive, holistic, and personalised approach to the promotion of health and wellbeing through a variety of strategies, in both personal and professional settings, to enhance capacity for compassionate care of patients and their families. This research adds an important qualitative perspective and serves to advance knowledge of both the context and effective practice of self-care in the palliative care workforce.


Asunto(s)
Personal de Salud/psicología , Cuidados Paliativos , Autocuidado/psicología , Adulto , Actitud del Personal de Salud , Australia , Femenino , Salud Holística , Humanos , Entrevistas como Asunto , Masculino , Persona de Mediana Edad , Enfermeras y Enfermeros/psicología , Cuidados Paliativos/psicología , Cuidados Paliativos/normas , Médicos/psicología , Investigación Cualitativa , Autocuidado/métodos , Recursos Humanos
2.
Int J Palliat Nurs ; 24(1): 4-11, 2018 Jan 02.
Artículo en Inglés | MEDLINE | ID: mdl-29368553

RESUMEN

This study examined levels of, and relationships between, self-care ability, self-compassion, and compassion among palliative care nurses and doctors. METHODS: A total of 369 participants across Australia completed a cross-sectional survey comprising a demographic questionnaire and outcome measures for each variable. Descriptive and inferential statistics were analysed, controlling for potential social-desirability bias. RESULTS: Levels of compassion, self-compassion and self-care ability varied, with some individuals scoring high or low in each. Self-compassion and self-care ability were positively correlated (r = .412, p<.001), whereas a negative correlation was observed between compassion and self-compassion (r = -.122, p<.05). Linear regression further indicated that: increased compassion was associated with a decrease in self-compassion, and increased self-care ability was associated with an increase in self-compassion. CONCLUSION: These results suggest important implications for self-care in the palliative care workforce. Moreover, this study contributes an empirical basis to inform future research and education to promote balanced compassion and compassion literacy in palliative care practice.


Asunto(s)
Empatía , Enfermería de Cuidados Paliativos al Final de la Vida , Enfermeras y Enfermeros , Medicina Paliativa , Médicos , Automanejo , Adolescente , Adulto , Australia , Estudios Transversales , Femenino , Humanos , Modelos Lineales , Masculino , Persona de Mediana Edad , Encuestas y Cuestionarios , Adulto Joven
3.
Acta Paediatr ; 106(10): 1608-1616, 2017 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-28685899

RESUMEN

AIM: This study presents results from an intervention designed to improve identification and response to abusive head trauma in a tertiary paediatric hospital in Vietnam. METHODS: One hundred and sixteen healthcare professionals (paediatric medical and nursing staff) completed a clinical training programme and participated in its evaluation. A pre-post-test and follow-up design was used to evaluate the outcomes. Questionnaires were used to collect data prior to training, at six weeks and at six months. Generalised linear modelling was used to examine changes in diagnostic skills and knowledge of the consequences of shaken baby syndrome (SBS) (a form of abusive head trauma), its prevention and treatment. RESULTS: At baseline, awareness and knowledge reflected no former abusive head trauma training. Following the intervention, participants had an increased awareness of shaken baby syndrome and the potential consequences of shaking infants and had acquired techniques to inform parents how to manage the crying infant. CONCLUSION: The intervention was effective in raising awareness of shaken baby syndrome and its consequences amongst the participating healthcare professionals in Vietnam. Training can improve detection and prevention of abusive head trauma, and the intervention has the potential to be adapted for similar settings internationally.


Asunto(s)
Síndrome del Bebé Sacudido/diagnóstico , Competencia Clínica , Humanos , Estudios Longitudinales , Prevención Secundaria , Síndrome del Bebé Sacudido/prevención & control , Vietnam
4.
Int J Palliat Nurs ; 23(5): 219-229, 2017 May 02.
Artículo en Inglés | MEDLINE | ID: mdl-28548918

RESUMEN

INTRODUCTION: Compassion is arguably central to palliative care. However, calls for the restoring of compassionate care suggest a need for greater understanding and promotion of compassion in practice. Drawing upon the Foucauldian concept 'Care of the Self', this review explored the literature relating to palliative care professionals' self-care, self-compassion, and compassion for others. METHODS: Three electronic databases were searched using identified key words. A thematic approach was used to synthesise and critically discuss the literature in the form of a narrative review. RESULTS: Four themes were identified: (1) importance of self-care; (2) awareness, expression, and planning; (3) dimensions of self-care; and (4) balanced compassion. Approaches to self-care practice and research focused mainly on compassion fatigue or a coping paradigm. CONCLUSIONS: This review highlights both the importance and multifaceted nature of palliative care professionals' self-care, in relation to self-compassion and compassion for others. Despite widespread discussion, empirical knowledge of these variables is limited. Future research could usefully explore health promotion interventions in self-care practice, or a positive psychology paradigm that encompasses compassion and self-compassion as positive emotions associated with wellbeing.


Asunto(s)
Adaptación Psicológica , Empatía , Personal de Salud , Cuidados Paliativos , Autocuidado , Desgaste por Empatía , Humanos
5.
Arthroscopy ; 30(2): 195-201, 2014 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-24485112

RESUMEN

PURPOSE: To determine whether patients with higher levels of preoperative psychological distress more frequently use a postoperative fascia iliaca nerve block for pain control after hip arthroscopy, and to determine whether a fascia iliaca nerve block is an effective adjunct to multimodal oral and intravenous analgesia after hip arthroscopy. METHODS: One hundred seven patients undergoing hip arthroscopy were prospectively enrolled. Before surgery, patients were administered the Distress Risk Assessment Method questionnaire to quantify their level of preoperative psychological distress. Postoperatively, patients with pain inadequately controlled by multimodal oral and intravenous analgesics could request and receive a fascia iliaca nerve block. Pain scores, opioid consumption, time in the post-anesthesia care unit (PACU), and postoperative complications were recorded for all patients. RESULTS: Patients with normal Distress Risk Assessment Method scores requested fascia iliaca nerve blocks approximately half as frequently (18 of 50 [36%]) as patients in the at-risk category (28 of 47 [60%]) or distressed category (7 of 10 [70%]) (P = .02). Patients with high levels of distress also received 40% more intraoperative opioid than patients with normal scores (P = .04). In the study population as a whole, patients who received a fascia iliaca nerve block (n = 53) had a higher initial visual analog scale (VAS) pain score in the PACU (7.2 ± 0.3 v 5.5 ± 0.4, P = .001) and showed greater improvement in the VAS pain score by PACU discharge (-4.3 ± 0.2 v -2.1 ± 0.3, P ≤ .0001) compared with patients who did not receive a block (n = 54). CONCLUSIONS: Patients with higher levels of preoperative psychological distress more frequently requested a postoperative nerve block to achieve adequate pain control after hip arthroscopy. Patients receiving a block had greater improvement in VAS pain scores compared with patients managed with oral and intravenous analgesics alone. LEVEL OF EVIDENCE: Level IV, case series.


Asunto(s)
Analgésicos/uso terapéutico , Artroscopía , Articulación de la Cadera/cirugía , Manejo del Dolor/métodos , Dolor Postoperatorio/terapia , Estrés Psicológico/complicaciones , Adulto , Analgesia/métodos , Femenino , Humanos , Artropatías/psicología , Artropatías/cirugía , Masculino , Persona de Mediana Edad , Bloqueo Nervioso/efectos adversos , Bloqueo Nervioso/métodos , Dimensión del Dolor , Dolor Postoperatorio/complicaciones , Dolor Postoperatorio/psicología , Estudios Prospectivos , Estrés Psicológico/psicología
6.
Artículo en Inglés | MEDLINE | ID: mdl-37569013

RESUMEN

Family support is offered to Australian parents of young children using a mix of targeted and universal child and family health services including nurse-home-visiting programmes. These rely on the voluntary engagement of families. In this study, the capacity to engage and retain families, including those at risk of becoming involved with child protection services, was examined. The broad objective was to identify nursing practices used at the interface of health and child protection services and to articulate those practices. Child and Family Health Nurses (CFHN) (n = 129) participated in a pragmatic, multilevel mixed-methods study. A questionnaire was used to identify nursing practices in the first phase of this study followed by focus groups in the second phase to describe these practices in more detail. Three practice themes were identified and described: enrolment, retention and conclusion of the nurse-family relationship. Universal child and family health services feature flexible, advanced, and multidimensional family support services including child protection practices. This paper focuses on practices employed by nurses to engage and retain families where child protection concerns are identified.

7.
Inj Prev ; 18(1): 50-7, 2012 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-21646244

RESUMEN

OBJECTIVES: To quantify the concordance of hospital child maltreatment data with child protection service (CPS) records, and identify factors associated with linkage. METHODS: Multivariable logistic regression analysis was conducted following retrospective medical record review and database linkage of 884 child records from 20 hospitals and the CPS in Queensland, Australia. RESULTS: Nearly all children with hospital assigned maltreatment codes (93.1%) had a CPS record. Of these, 85.1% had a recent notification. 29% of the linked maltreatment group (n=113) were not known to the CPS prior to the hospital presentation. Almost one third of children with unintentional injury hospital codes were known to the CPS. Just over 24% of the linked unintentional injury group (n=34) were not known to the CPS prior to the hospital presentation but became known during or after discharge from hospital. These estimates are higher than the 2006/2007 annual rate of 2.39% of children being notified to the CPS. Rural children were more likely to link to the CPS, and children were over three times more likely to link if the index injury documentation included additional diagnoses or factors affecting their health. CONCLUSIONS: The system for referring maltreatment cases to the CPS is generally efficient, although up to 1 in 15 children had codes for maltreatment but could not be linked to CPS data. The high proportion of children with unintentional injury codes who linked to CPS suggests that clinicians and hospital-based child protection staff should be supported by further education and training to ensure children at risk are being detected by the child protection system.


Asunto(s)
Maltrato a los Niños/estadística & datos numéricos , Protección a la Infancia/estadística & datos numéricos , Recolección de Datos/normas , Notificación Obligatoria , Registros Médicos/estadística & datos numéricos , Adolescente , Niño , Maltrato a los Niños/diagnóstico , Maltrato a los Niños/prevención & control , Preescolar , Prestación Integrada de Atención de Salud/normas , Femenino , Humanos , Lactante , Modelos Logísticos , Masculino , Análisis Multivariante , Queensland , Heridas y Lesiones/clasificación
8.
Can J Anaesth ; 59(4): 394-407, 2012 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-22407474

RESUMEN

PURPOSE: There are more than 200,000 Canadians living with permanent pacemakers or implantable defibrillators, many of whom will require surgery or invasive procedures each year. They face potential hazards when undergoing surgery; however, with appropriate planning and education of operating room personnel, adverse device-related outcomes should be rare. This joint position statement from the Canadian Cardiovascular Society (CCS) and the Canadian Anesthesiologists' Society (CAS) has been developed as an accessible reference for physicians and surgeons, providing an overview of the key issues for the preoperative, intraoperative, and postoperative care of these patients. PRINCIPAL FINDINGS: The document summarizes the limited published literature in this field, but for most issues, relies heavily on the experience of the cardiologists and anesthesiologists who contributed to this work. This position statement outlines how to obtain information about an individual's type of pacemaker or implantable defibrillator and its programming. It also stresses the importance of determining if a patient is highly pacemaker-dependent and proposes a simple approach for nonelective evaluation of dependency. Although the document provides a comprehensive list of the intraoperative issues facing these patients, there is a focus on electromagnetic interference resulting from electrocautery and practical guidance is given regarding the characteristics of surgery, electrocautery, pacemakers, and defibrillators which are most likely to lead to interference. CONCLUSIONS: The document stresses the importance of preoperative consultation and planning to minimize complications. It reviews the relative merits of intraoperative magnet use vs reprogramming of devices and gives examples of situations where one or the other approach is preferable.


Asunto(s)
Estimulación Cardíaca Artificial , Desfibriladores Implantables , Terapia por Estimulación Eléctrica/instrumentación , Enfermedades del Sistema Nervioso/terapia , Atención Perioperativa , Anestesiología/organización & administración , Cardiología/organización & administración , Humanos , Cuidados Intraoperatorios , Magnetismo , Cuidados Posoperatorios , Sociedades Médicas
9.
J Biol Chem ; 285(48): 37762-72, 2010 Nov 26.
Artículo en Inglés | MEDLINE | ID: mdl-20851891

RESUMEN

p53 is a thermodynamically unstable protein containing a conformationally flexible multiprotein docking site within the DNA-binding domain. A combinatorial peptide chip used to identify the novel kinase consensus site RXSΦ(K/D) led to the discovery of a homologous phosphorylation site in the S10 ß-strand of p53 at Ser(269). Overlapping peptide libraries confirmed that Ser(269) was a phosphoacceptor site in vitro, and immunochemical approaches evaluated whether p53 is phosphorylated in vivo at Ser(269). Mutation or phosphorylation of p53 at Ser(269) attenuates binding of the p53-specific monoclonal antibody DO-12, identifying an assay for measuring Ser(269) phosphorylation of p53 in vivo. The mAb DO-12 epitope of p53 is masked via phosphorylation in a range of human tumor cells with WT p53 status, as defined by increased mAb DO-12 binding to endogenous p53 after phosphatase treatment. Phospho-Ser(269)-specific monoclonal antibodies were generated and used to demonstrate that p53 phosphorylation is induced at Ser(269) after irradiation with kinetics similar to those of p53 protein induction. Phosphomimetic mutation at Ser(269) inactivated the transcription activation function and clonogenic suppressor activity of p53. These data suggest that the dynamic equilibrium between native and unfolded states of WT p53 can be modulated by phosphorylation of the conformationally flexible multiprotein binding site in the p53 DNA-binding domain.


Asunto(s)
Serina/metabolismo , Proteína p53 Supresora de Tumor/química , Proteína p53 Supresora de Tumor/metabolismo , Secuencias de Aminoácidos , Secuencia de Aminoácidos , Línea Celular Tumoral , Humanos , Datos de Secuencia Molecular , Mutación , Fosforilación , Unión Proteica , Proteínas Proto-Oncogénicas c-mdm2/genética , Proteínas Proto-Oncogénicas c-mdm2/metabolismo , Serina/química , Serina/genética , Proteína p53 Supresora de Tumor/genética , Ubiquitinación
10.
J Biol Chem ; 285(48): 37773-86, 2010 Nov 26.
Artículo en Inglés | MEDLINE | ID: mdl-20847049

RESUMEN

The p53 DNA-binding domain harbors a conformationally flexible multiprotein binding site that regulates p53 ubiquitination. A novel phosphorylation site exists within this region at Ser(269), whose phosphomimetic mutation inactivates p53. The phosphomimetic p53 (S269D) exhibits characteristics of mutant p53: stable binding to Hsp70 in vivo, elevated ubiquitination in vivo, inactivity in DNA binding and transcription, increased thermoinstability using thermal shift assays, and λ(max) of intrinsic tryptophan fluorescence at 403 nm rather than 346 nm, characteristic of wild type p53. These data indicate that p53 conformational stability is regulated by a phosphoacceptor site within an exposed flexible surface loop and that this can be destabilized by phosphorylation. To test whether other motifs within p53 have similarly evolved, we analyzed the effect of Ser(215) mutation on p53 function because Ser(215) is another inactivating phosphorylation site in the conformationally flexible PAb240 epitope. The p53(S215D) protein is inactive like p53(S269D), whereas p53(S215A) is as active as p53(S269A). However, the double mutant p53(S215A/S269A) was transcriptionally inactive and more thermally unstable than either individual Ser-Ala loop mutant. Molecular dynamics simulations suggest that (i) solvation of phospho-Ser(215) and phospho-Ser(269) by positive charged residues or solvent water leads to local unfolding, which is accompanied by local destabilization of the N-terminal loop and global destabilization of p53, and (ii) the double alanine 215/269 mutation disrupts hydrogen bonding normally stabilized by both Ser(215) and Ser(269). These data indicate that p53 has evolved two serine phosphoacceptor residues within conformationally flexible epitopes that normally stabilize the p53 DNA-binding domain but whose phosphorylation induces a mutant conformation to wild type p53.


Asunto(s)
Serina/metabolismo , Proteína p53 Supresora de Tumor/química , Proteína p53 Supresora de Tumor/metabolismo , Secuencias de Aminoácidos , Secuencia de Aminoácidos , Línea Celular Tumoral , Humanos , Modelos Moleculares , Datos de Secuencia Molecular , Mutación , Fosforilación , Unión Proteica , Conformación Proteica , Estabilidad Proteica , Proteínas Proto-Oncogénicas c-mdm2/genética , Proteínas Proto-Oncogénicas c-mdm2/metabolismo , Alineación de Secuencia , Serina/química , Serina/genética , Proteína p53 Supresora de Tumor/genética , Ubiquitinación
11.
Mol Cell Biol ; 27(9): 3542-55, 2007 May.
Artículo en Inglés | MEDLINE | ID: mdl-17339337

RESUMEN

Genetic and biochemical studies have shown that Ser(20) phosphorylation in the transactivation domain of p53 mediates p300-catalyzed DNA-dependent p53 acetylation and B-cell tumor suppression. However, the protein kinases that mediate this modification are not well defined. A cell-free Ser(20) phosphorylation site assay was used to identify a broad range of calcium calmodulin kinase superfamily members, including CHK2, CHK1, DAPK-1, DAPK-3, DRAK-1, and AMPK, as Ser(20) kinases. Phosphorylation of a p53 transactivation domain fragment at Ser(20) by these enzymes in vitro can be mediated in trans by a docking site peptide derived from the BOX-V domain of p53, which also harbors the ubiquitin signal for MDM2. Evaluation of these calcium calmodulin kinase superfamily members as candidate Ser(20) kinases in vivo has shown that only CHK1 or DAPK-1 can stimulate p53 transactivation and induce Ser(20) phosphorylation of p53. Using CHK1 as a prototypical in vivo Ser(20) kinase, we demonstrate that (i) CHK1 protein depletion using small interfering RNA can attenuate p53 phosphorylation at Ser(20), (ii) an enhanced green fluorescent protein (EGFP)-BOX-V fusion peptide can attenuate Ser(20) phosphorylation of p53 in vivo, (iii) the EGFP-BOX-V fusion peptide can selectively bind to CHK1 in vivo, and (iv) the Deltap53 spliced variant lacking the BOX-V motif is refractory to Ser(20) phosphorylation by CHK1. These data indicate that the BOX-V motif of p53 has evolved the capacity to bind to enzymes that mediate either p53 phosphorylation or ubiquitination, thus controlling the specific activity of p53 as a transcription factor.


Asunto(s)
Proteínas Quinasas Dependientes de Calcio-Calmodulina/metabolismo , ADN/metabolismo , Proteínas Proto-Oncogénicas c-mdm2/metabolismo , Proteína p53 Supresora de Tumor/metabolismo , Ubiquitina/metabolismo , Secuencias de Aminoácidos , Proteínas Reguladoras de la Apoptosis/metabolismo , Línea Celular Tumoral , Quinasa 1 Reguladora del Ciclo Celular (Checkpoint 1) , Quinasa de Punto de Control 2 , Proteínas Quinasas Asociadas a Muerte Celular , Activación Enzimática , Eliminación de Gen , Humanos , Datos de Secuencia Molecular , Fragmentos de Péptidos/química , Fragmentos de Péptidos/metabolismo , Unión Proteica , Proteínas Quinasas/química , Proteínas Quinasas/metabolismo , Proteínas Serina-Treonina Quinasas/química , Proteínas Serina-Treonina Quinasas/metabolismo , Homología de Secuencia de Aminoácido , Activación Transcripcional , Proteína p53 Supresora de Tumor/química , Proteína p53 Supresora de Tumor/clasificación
12.
Front Oncol ; 10: 628, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32391281

RESUMEN

Radiotherapy remains an important treatment modality in nearly two thirds of all cancers, including the primary curative or palliative treatment of breast cancer. Unfortunately, largely due to tumor heterogeneity, tumor radiotherapy response rates can vary significantly, even between patients diagnosed with the same tumor type. Although in recent years significant technological advances have been made in the way radiation can be precisely delivered to tumors, it is proving more difficult to personalize radiotherapy regimens based on cancer biology. Biomarkers that provide prognostic or predictive information regarding a tumor's intrinsic radiosensitivity or its response to treatment could prove valuable in helping to personalize radiation dosing, enabling clinicians to make decisions between different treatment options whilst avoiding radiation-induced toxicity in patients unlikely to gain therapeutic benefit. Studies have investigated numerous ways in which both patient and tumor radiosensitivities can be assessed. Tumor molecular profiling has been used to develop radiosensitivity gene signatures, while the assessment of specific intracellular or secreted proteins, including circulating tumor cells, exosomes and DNA, has been performed to identify prognostic or predictive biomarkers of radiation response. Finally, the investigation of biomarkers related to radiation-induced toxicity could provide another means by which radiotherapy could become personalized. In this review, we discuss studies that have used these methods to identify or develop prognostic/predictive signatures of radiosensitivity, and how such assays could be used in the future as a means of providing personalized radiotherapy.

13.
Sci Rep ; 9(1): 19076, 2019 12 13.
Artículo en Inglés | MEDLINE | ID: mdl-31836808

RESUMEN

Neuroendocrine prostate cancer (NEPC) is thought to arise as prostate adenocarcinoma cells transdifferentiate into neuroendocrine (NE) cells to escape potent anti-androgen therapies however, the exact molecular events accompanying NE transdifferentiation and their plasticity remain poorly defined. Cell fate regulator ASCL1/hASH1's expression was markedly induced in androgen deprived (AD) LNCaP cells and prominent nuclear localisation accompanied acquisition of the NE-like morphology and expression of NE markers (NSE). By contrast, androgen-insensitive PC3 and DU145 cells displayed clear nuclear hASH1 localisation under control conditions that was unchanged by AD, suggesting AR signalling negatively regulated hASH1 expression and localisation. Synthetic androgen (R1881) prevented NE transdifferentiation of AD LNCaP cells and markedly suppressed expression of key regulators of lineage commitment and neurogenesis (REST and ASCL1/hASH1). Post-AD, NE LNCaP cells rapidly lost NE-like morphology following R1881 treatment, yet ASCL1/hASH1 expression was resistant to R1881 treatment and hASH1 nuclear localisation remained evident in apparently dedifferentiated LNCaP cells. Consequently, NE cells may not fully revert to an epithelial state and retain key NE-like features, suggesting a "hybrid" phenotype. This could fuel greater NE transdifferentiation, therapeutic resistance and NEPC evolution upon subsequent androgen deprivation. Such knowledge could facilitate CRPC tumour stratification and identify targets for more effective NEPC management.


Asunto(s)
Andrógenos/farmacología , Factores de Transcripción con Motivo Hélice-Asa-Hélice Básico/metabolismo , Núcleo Celular/metabolismo , Transdiferenciación Celular , Células Neuroendocrinas/patología , Neoplasias de la Próstata/patología , Línea Celular Tumoral , Núcleo Celular/efectos de los fármacos , Forma de la Célula/efectos de los fármacos , Transdiferenciación Celular/efectos de los fármacos , Humanos , Masculino , Células Neuroendocrinas/efectos de los fármacos , Neurogénesis/efectos de los fármacos , Neuronas/efectos de los fármacos , Neuronas/metabolismo , Neuronas/patología , Transporte de Proteínas/efectos de los fármacos
14.
Sci Rep ; 8(1): 7506, 2018 05 14.
Artículo en Inglés | MEDLINE | ID: mdl-29760395

RESUMEN

Neutrophil surveillance is central to nanoparticle clearance. Silver nanoparticles (AgNP) have numerous uses, however conflicting evidence exists as to their impact on neutrophils and whether they trigger damaging inflammation. Neutrophil's importance in innate defence and regulating immune networks mean it's essential we understand AgNP's impact on neutrophil function. Human neutrophil viability following AgNP or Ag Bulk treatment was analysed by flow cytometry and AnV/PI staining. Whilst AgNP exposure did not increase the total number of apoptotic neutrophils, the number of late apoptotic neutrophils was increased, suggesting AgNP increase transit through apoptosis. Mature (CD16bright/CD62Lbright), immature (CD16dim/CD62Lbright) and apoptotic (CD16dim/CD62Ldim) neutrophil populations were evident within isolated neutrophil preparations. AgNP exposure significantly reduced CD62L staining of CD16bright/CD62Lbright neutrophils, and increased CD16 staining of CD16dim/CD62Lbright populations, suggesting AgNPs trigger neutrophil activation and maturation, respectively. AgNP exposure dramatically increased IL-8, yet not classical pro-inflammatory cytokine release, suggesting AgNP triggers neutrophil activation, without pro-inflammation or damaging, necrotic cell death. For the first time, we show AgNPs differentially affect distinct sub-populations of circulating human neutrophils; activating mature neutrophils with the emergence of CD16bright/CD62Ldim neutrophils. This may stimulate particle clearance without harmful inflammation, challenging previous assumptions that silver nanomaterials induce neutrophil toxicity and damaging inflammatory responses.


Asunto(s)
Interleucina-8/metabolismo , Neutrófilos/citología , Plata/efectos adversos , Regulación hacia Arriba , Supervivencia Celular/efectos de los fármacos , Citometría de Flujo , Humanos , Selectina L/metabolismo , Nanopartículas del Metal/efectos adversos , Activación Neutrófila , Neutrófilos/efectos de los fármacos , Neutrófilos/inmunología , Receptores de IgG/metabolismo
15.
Int J Nurs Stud ; 44(8): 1363-70, 2007 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-16938299

RESUMEN

BACKGROUND: Infants exposed to intrauterine drugs present a number of challenging features with which the new mother is faced. They can be irritable, unresponsive, and unpredictable. Available treatments require specialised neonatal care for the first four to six weeks of life; a critical time for the parent-infant attachment relationship to develop. Neonatal nurses have the opportunity to promote this development and ameliorate the effect of other developmental risk factors the baby is likely to experience. OBJECTIVES: The aim of this study was to explore neonatal nurses' experiences of providing care to drug-exposed newborns and their parents throughout treatment for neonatal abstinence syndrome (NAS). DESIGN, SETTING AND PARTICIPANTS: This study used interpretive methods by conducting group interviews with eight neonatal nurses in each of four Special Care Nursery Units in South-East Queensland, Australia. RESULTS: Barriers to promoting the parent-infant attachment relationship were found to be both attitudinal and organisational. These barriers were significant, and were seen to impact negatively on optimal care delivery to this vulnerable population. CONCLUSIONS: Unfortunately, the results of this study indicated that management of these babies and their parents is compromised by a range of attitudinal and organisational factors. There is a need to address these barriers to optimise care delivery and improve the way in which neonatal nurses impact on parent-infant relationships.


Asunto(s)
Enfermería de la Familia , Síndrome de Abstinencia Neonatal/enfermería , Apego a Objetos , Padres/psicología , Trastornos Relacionados con Sustancias/psicología , Femenino , Humanos , Recién Nacido , Masculino , Grupo de Atención al Paciente/organización & administración , Queensland , Apoyo Social , Poblaciones Vulnerables
16.
Kaohsiung J Med Sci ; 23(3): 128-37, 2007 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-17389177

RESUMEN

Despite the frontline role of taking care of children, nurses in Taiwan have been reluctant to report known and suspected cases of child abuse and neglect (CAN). This problem threatens the success of legislation aimed at reducing CAN cases in Taiwan. The purpose of this study was to examine the influence of nurses' perceptions, attitudes, and knowledge on suspecting and reporting CAN cases in health care settings in Taiwan. Two hundred and thirty-eight nurses were surveyed using structured questionnaires with a return rate of 79.3%. Health care settings surveyed in this study included emergency units, pediatric units, and community centers from eight hospitals in southern Taiwan. Almost 3/4 (70%) of the sample of nurses thought they needed more training courses on CAN. Correlation analysis showed a significant relationship between suspecting and reporting CAN with perception, attitude, and knowledge. Stepwise multiple regression analysis revealed that perception (beta = 0.475), knowledge (beta = 0.265), and attitude (beta = 0.246) accounted for 60% of the variance in suspecting and reporting CAN. The focus and scope of training programs for nurses in Taiwan should take these findings into consideration.


Asunto(s)
Actitud del Personal de Salud , Maltrato a los Niños , Niño , Educación en Enfermería , Femenino , Humanos , Conocimiento , Masculino , Enfermeras y Enfermeros , Percepción , Taiwán
17.
J Palliat Med ; 20(6): 625-630, 2017 06.
Artículo en Inglés | MEDLINE | ID: mdl-28092492

RESUMEN

BACKGROUND: Self-care is an important consideration for palliative care professionals. To date, few details have been recorded about the nature or uptake of self-care practices in the palliative care workforce. As part of a broader mixed methods study, this article reports findings from a national survey of nurses and doctors. OBJECTIVE: The objective of this study was to examine perceptions, education, and practices relating to self-care among palliative care nursing and medical professionals. DESIGN: A cross-sectional survey using REDCap software was conducted between April and May 2015. Perceived importance of self-care, self-care education and planning, and self-care strategies most utilized were explored. Descriptive statistics were calculated and content analysis used to identify domains of self-care. SETTING/SUBJECTS: Three hundred seventy-two palliative care nursing and medical professionals practicing in Australia. RESULTS: Most respondents regarded self-care as very important (86%). Some rarely practised self-care and less than half (39%) had received training in self-care. Physical self-care strategies were most commonly reported, followed closely by social self-care and inner self-care. Self-care plans had been used by a small proportion of respondents (6%) and over two-thirds (70%) would consider using self-care plans if training could be provided. CONCLUSIONS: Self-care is practised across multiple health related domains, with physical self-care strategies used most frequently. Australian palliative care nurses and doctors recognize the importance of self-care practice, but further education and training are needed to increase their understanding of, and consistency in, using effective self-care strategies. These findings carry implications for professional practice and future research.


Asunto(s)
Personal de Salud/psicología , Enfermería de Cuidados Paliativos al Final de la Vida , Cuidados Paliativos , Autocuidado , Adolescente , Adulto , Australia , Estudios Transversales , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Masculino , Persona de Mediana Edad , Encuestas y Cuestionarios , Adulto Joven
18.
PLoS One ; 12(10): e0185664, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28968430

RESUMEN

Stroke causes severe neuronal damage as disrupted cerebral blood flow starves neurons of oxygen and glucose. The hypoxia inducible factors (HIF-1α and HIF-2α) orchestrate oxygen homeostasis and regulate specific aspects of hypoxic adaptation. Here we show the importance of HIF-2α dependant signalling in neuronal adaptation to hypoxic insult. PC12 and NT2 cells were differentiated into neuronal-like cells using NGF and retinoic acid, and exposed to acute hypoxia (1% O2). Gene and protein expression was analysed by qPCR and immunoblotting and the neuronal-like phenotype was examined. PC12 and NT2 differentiation promoted neurite extension and expression of neuronal markers, NSE and KCC2. Induction of HIF-1α mRNA or protein was not detected in hypoxic neuronal-like cells, however marked induction of HIF-2α mRNA and protein expression was observed. Induction of HIF-1α target genes was also not detected in response to acute hypoxia, however significant induction of HIF-2α transcriptional targets was clearly evident. Furthermore, hypoxic insult dramatically reduced both neurite number and length, and attenuated expression of neuronal markers, NSE and KCC2. This correlated with an increase in expression of the neural progenitor and stem cell-like markers, CD44 and vimentin, suggesting HIF-2α molecular mechanisms could potentially promote regression of neuronal-like cells to a stem-like state and trigger neuronal recovery following ischaemic insult. Our findings suggest the HIF-2α pathway predominates over HIF-1α signalling in neuronal-like cells following acute hypoxia.


Asunto(s)
Factores de Transcripción con Motivo Hélice-Asa-Hélice Básico/metabolismo , Hipoxia de la Célula , Neuronas/metabolismo , Transducción de Señal , Adaptación Fisiológica , Animales , Diferenciación Celular , Estrés del Retículo Endoplásmico , Humanos , Células-Madre Neurales/metabolismo , Neuronas/citología , Estabilidad Proteica , Ratas , Reacción en Cadena en Tiempo Real de la Polimerasa
19.
J Law Med ; 13(4): 505-17, 2006 May.
Artículo en Inglés | MEDLINE | ID: mdl-16756219

RESUMEN

Most Australian jurisdictions have mandatory reporting legislation to compel members of selected professional groups, including nurses, to report suspicions that a child has been or is likely to be subjected to abuse or neglect. This article details the legal obligations of nurses in each jurisdiction, and highlights differences between jurisdictions. Problematic features of the laws are identified, including the use of ambiguous concepts like "reasonable" suspicion and "significant" harm. Literature is reviewed to identify what is known about nurses' legal knowledge, actual reporting practice, and the practical problems that arise for nurses in this context. It is concluded that empirical research needs to be conducted, because it is not known if the laws are practically effective, whether nurses have sufficient training in, and knowledge of, their reporting duties, or what factors influence sound reporting. Such research can inform both the development of sound training systems and recommendations for legal reform.


Asunto(s)
Maltrato a los Niños/legislación & jurisprudencia , Notificación Obligatoria , Personal de Enfermería/legislación & jurisprudencia , Competencia Profesional , Australia , Maltrato a los Niños/diagnóstico , Preescolar , Adhesión a Directriz , Conocimientos, Actitudes y Práctica en Salud , Humanos , Responsabilidad Legal , Personal de Enfermería/educación , Personal de Enfermería/estadística & datos numéricos
20.
Int J Nurs Stud ; 64: 72-85, 2016 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-27693983

RESUMEN

BACKGROUND: The development of child behaviour and parenting difficulties is understood to undermine treatment outcomes for children with atopic dermatitis. Past research has reported on correlates of child behaviour difficulties. However, few research studies have sought to examine parenting confidence and practices in this clinical group. OBJECTIVES: To examine relationships between child, parent, and family variables, parent-reported and directly-observed child and parent behaviour, parents' self-efficacy with managing difficult child behaviour, self-reported parenting strategies, and disease severity. DESIGN: Cross-sectional study design. PARTICIPANTS: Parent-child dyads (N=64) were recruited from the dermatology clinic of a paediatric tertiary referral hospital in Brisbane, Australia. Children had a diagnosis of atopic dermatitis of ≥3months and no other chronic health conditions except asthma, allergic rhinitis, or allergy. METHODS: Parents completed self-report measures assessing child behaviour; parent depression, anxiety, and stress; parenting conflict and relationship satisfaction; self-efficacy with managing difficult child behaviour, and use of ineffective parenting strategies; and self-efficacy for managing atopic dermatitis, and performance of atopic dermatitis management tasks. The Scoring Atopic Dermatitis index was used to assess disease severity. Routine at-home treatment sessions were coded for parent and child behaviour. RESULTS: Pearson's and Spearman's correlations identified relationships (p<0.05) between self-efficacy with managing difficult child behaviour and child behaviour problems, parent depression and stress, parenting conflict and relationship satisfaction, and household income. There were also relationships between each of these variables and use of ineffective parenting strategies. Greater use of ineffective parenting strategies was associated with more severe atopic dermatitis. Using multiple linear regressions, child behaviour and household income explained unique variance in self-efficacy for managing difficult child behaviour; household income alone explained unique variance in use of ineffective parenting strategies. Self-efficacy for managing difficult child behaviour and self-efficacy for managing atopic dermatitis were positively correlated (rho=0.48, p<0.001), and more successful self-reported performance of atopic dermatitis management tasks correlated with less permissive (r=0.35, p=0.005) and less authoritarian (r=0.41, p=0.001) parenting. Directly observed aversive child behaviour was associated with more severe atopic dermatitis, parent stress, and parent-reported child behaviour problems. CONCLUSION: This study revealed relationships between parents' self-efficacy and parenting practices across the domains of child behaviour management and atopic dermatitis management. Parents of children with more severe atopic dermatitis may have difficulty responding to child behaviour difficulties appropriately, potentially impacting on illness management. Incorporating parent and parenting support within treatment plans may improve not only child and family wellbeing, but also treatment outcomes.


Asunto(s)
Conducta Infantil , Dermatitis Atópica/terapia , Responsabilidad Parental/psicología , Índice de Severidad de la Enfermedad , Cuidados de la Piel/métodos , Adulto , Australia , Niño , Preescolar , Estudios Transversales , Femenino , Humanos , Renta , Masculino , Autoeficacia , Encuestas y Cuestionarios , Resultado del Tratamiento
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