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3.
Future Healthc J ; 8(1): e170-e173, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33791502

RESUMEN

UK guidelines recommend that discussions about organ and tissue donation are conducted as part of end-of-life care. However, there are several barriers to discussing organ donation, and this is reflected in a critical shortage of donors. This article explores who should start the conversation about donation and how all healthcare practitioners can maximise their communication skills to have success in this area. It is particularly pertinent to be upskilled in this area in light of the recent legal change in England, where the system moved from an opt-in to a 'soft' opt-out one. Based on a similar legal change that took place in Wales and global data, it is unlikely that the legal change alone will prompt an increase in donation rates in England. This article proposes suggestions to increase awareness and conversations among healthcare professionals and patients with education, public health campaigns and interventions rooted in psychological theory.

5.
Eur Respir J ; 49(4)2017 04.
Artículo en Inglés | MEDLINE | ID: mdl-28404645

RESUMEN

IREB2 is a gene that produces iron regulatory protein 2 (IRP2), which is critical to intracellular iron homeostasis and which relates to the rate of cellular proliferation. IREB2 lies in a lung cancer susceptibility locus. The aims were to assess 1) the relationship between iron loading, cell proliferation and IRP2 expression in lung cancer; 2) the potential of iron related pathways as therapeutic targets; and 3) the relevance of IRP2 in operated lung cancer patients.Cells of two nonsmall cell cancer (NSCLC) lines and primary bronchial epithelial cells (PBECs) were cultured with and without iron; and proliferation, apoptosis and migration were assessed. Reverse transcriptase PCR and Western blot were used to assess expression of iron homeostasis genes/proteins. Iron chelation and knockdown of IREB2 were used in vitro to explore therapeutics. A cohort of operated NSCLC patients was studied for markers of systemic iron status, tumour IRP2 staining and survival.Iron loading caused cell proliferation in cancer cell lines, which were less able to regulate IREB2 expression than PBECs. Iron chelation resulted in a return of proliferation rates to baseline levels; knockdown of IREB2 had a similar effect. IRP2-positive tumours were larger (p=0.045) and higher percentage staining related to poorer survival (p=0.079).Loss of iron regulation represents a poor prognostic marker in lung cancer.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas/genética , Proteína 2 Reguladora de Hierro/genética , Hierro/metabolismo , Neoplasias Pulmonares/genética , Anciano , Apoptosis , Línea Celular , Proliferación Celular , Células Epiteliales/metabolismo , Femenino , Expresión Génica , Técnicas de Silenciamiento del Gen , Humanos , Proteína 2 Reguladora de Hierro/metabolismo , Pulmón/patología , Masculino , Estadificación de Neoplasias , Pronóstico , Modelos de Riesgos Proporcionales
6.
Multidiscip Respir Med ; 10: 34, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26629341

RESUMEN

Respiratory disease accounts for a large proportion of emergency admissions to hospital and diseaseassociated mortality. Genetic association studies demonstrate a link between iron metabolism and pulmonary disease phenotypes. IREB2 is a gene that produces iron regulatory protein 2 (IRP2), which has a key role in iron homeostasis. This review addresses pathways involved in iron metabolism, particularly focusing on the role of IREB2. In addition to this, environmental factors also influence phenotypic variation in respiratory disease, for example inhaled iron from cigarette smoke is deposited in the lung and causes tissue damage by altering iron homeostasis. The effects of cigarette smoke are detailed in this article, particularly in relation to lung conditions that favour the upper lobes, such as emphysema and lung cancer. Clinical applications of iron homeostasis are also discussed in this review, especially looking at the pathophysiology of chronic obstructive pulmonary disease, lung cancer, pulmonary infections and acute respiratory distress syndrome. Promising new treatments involving iron are also covered.

7.
Open Respir Med J ; 9: 15-21, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25741394

RESUMEN

INTRODUCTION: Intravenous antibiotic therapy (IVAT) for CF acute pulmonary exacerbations (APE) can be delivered in hospital or in the community. This study aimed to compare physical activity in CF patients receiving hospital and community-delivered IVAT, as well as other health outcomes. MATERIALS AND METHODS: This was a non-randomised parallel group prospective observational study. Hospitalised and community-treated CF adults receiving IVAT for APE were asked to wear ActiGraph® activity monitors, complete the habitual activity estimation scale (HAES), food diary, modified shuttle test (MST) and CFQ-R at the start and end of therapy. Nutritional and clinical outcomes were also compared between the cohorts. The primary outcomes was physical activity measured by the ActiGraph® activity monitors at the beginning and end of treatment in both cohorts. RESULTS: Physical activity (measured and self-reported) was no different between the cohorts, with both hospitalised and community-treated subjects being generally sedentary. Body weight increased significantly in the hospitalised cohort, whereas no difference was seen in the community-treated cohort. FEV1 % predicted and FVC % predicted increased in community-treated subjects, whereas only FVC % predicted increased in hospitalised subjects. CFQ-R respiratory domain increased to a greater extent in community-treated subjects. CONCLUSION: CF adults receiving IVAT for APE, both in hospital and in the community, are generally sedentary and we found no difference in physical activity between the two groups. These findings suggests the need to further promote physical activity in suitable patients during APE where considered appropriate.

8.
Trials ; 15: 332, 2014 Aug 22.
Artículo en Inglés | MEDLINE | ID: mdl-25146127

RESUMEN

BACKGROUND: Community-acquired pneumonia (CAP) is considered the leading cause of death from infectious disease in developed countries, while complications of CAP - sepsis being the most common and challenging - increase the risk of mortality. During the progression of sepsis, a state of neutrophil 'paralysis' develops resulting in the impairment of neutrophil anti-microbial functions including: chemotaxis, production of reactive oxygen species, and formation of neutrophil extracellular traps (NETs). Mechanisms underlying defective neutrophil function remain elusive although NET formation has been implicated in the immunosuppression and increased rates of sepsis observed in neonates. There is, however, increasing evidence that statins are able to modulate neutrophil function in sepsis as several systematic reviews have concluded that statins have a role in improving infection-related outcomes and mortality while, in vitro, statins have also been shown to boost NET formation in healthy individuals. METHODS/DESIGN: The 'SNOOPI' trial is a phase 4, randomised placebo-controlled trial. The aim of this study is to determine whether oral treatment with simvastatin compared to placebo optimises neutrophil anti-microbial functions in elderly patients with septic pneumonia improving patient outcomes in the elderly. The primary outcome will be NET production within 72 to 96 hours of treatment with simvastatin or placebo measured in response to a number of inflammatory mediators, including IL8, f-Met-Leu-Phe and lipopolysaccharide. Secondary outcomes include neutrophil migratory capacity; reactive oxygen species production; neutrophil phagocytic capacity; safety and tolerability of simvastatin administration within this patient group; biological markers of neutrophil activation, the inflammatory response, alveolar epithelial and endothelial injury; systemic endothelial function biomarkers and pulmonary extracellular matrix degradation. This study aims to recruit 60 patients admitted into Queen Elizabeth Hospital Birmingham NHS-Foundation Trust. DISCUSSION: This study will investigate the ability of in vivo simvastatin therapy to modulate neutrophil anti-microbial functions in CAP-associated sepsis. TRIAL REGISTRATION: EudraCT number: 2012-003343-29 (Trial Registered: 26 November 2012).


Asunto(s)
Antiinflamatorios/uso terapéutico , Infecciones Comunitarias Adquiridas/tratamiento farmacológico , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Neutrófilos/efectos de los fármacos , Neumonía Bacteriana/tratamiento farmacológico , Proyectos de Investigación , Sepsis/tratamiento farmacológico , Simvastatina/uso terapéutico , Administración Oral , Factores de Edad , Anciano , Antiinflamatorios/administración & dosificación , Antiinflamatorios/efectos adversos , Biomarcadores/sangre , Protocolos Clínicos , Infecciones Comunitarias Adquiridas/sangre , Infecciones Comunitarias Adquiridas/diagnóstico , Infecciones Comunitarias Adquiridas/inmunología , Infecciones Comunitarias Adquiridas/microbiología , Inglaterra , Trampas Extracelulares/metabolismo , Humanos , Inhibidores de Hidroximetilglutaril-CoA Reductasas/administración & dosificación , Inhibidores de Hidroximetilglutaril-CoA Reductasas/efectos adversos , Mediadores de Inflamación/sangre , Persona de Mediana Edad , Neutrófilos/inmunología , Neutrófilos/metabolismo , Neutrófilos/microbiología , Neumonía Bacteriana/sangre , Neumonía Bacteriana/diagnóstico , Neumonía Bacteriana/inmunología , Neumonía Bacteriana/microbiología , Especies Reactivas de Oxígeno/sangre , Sepsis/sangre , Sepsis/diagnóstico , Sepsis/inmunología , Sepsis/microbiología , Simvastatina/administración & dosificación , Simvastatina/efectos adversos , Factores de Tiempo , Resultado del Tratamiento
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