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BACKGROUND: Diabetic foot syndrome is defined as the presence of a diabetic foot ulcer (DFU) associated with neuropathy, peripheral artery disease and infection. While the use of antimicrobials in the treatment of DFU infection remains a mainstay, the choice of antimicrobial remains problematic owing to the presence of multidrug-resistant polymicrobial infections. In the South African public healthcare sector, the treatment of DFUs is based on the Standard Treatment Guidelines (STGs) and the Essential Drug List. These guidelines are developed using evidence-based medicine and are based on global susceptibility patterns rather than local susceptibility data, and may not provide the most appropriate treatment options. OBJECTIVES: To determine the antimicrobial susceptibility patterns of DFUs isolated from patients visiting selected Gauteng provincial public hospitals in order to determine a clinically effective treatment protocol for the management of these infections. METHODS: Sample swabs were taken from 51 DFUs using the Levine method. Each sample swab was spread onto blood agar plates, and thereafter individual pathogens were isolated. The antimicrobial susceptibility patterns of all isolated pathogens were determined using zone of inhibition measurements. Pathogens were grouped according to macromorphological characteristics as well as susceptibility patterns, and a representative isolate from each group was then identified. RESULTS: A total of 51 DFU ulcer swabs from 45 patients were included in the study. From the sample swabs, a total of 445 pathogens were isolated. The most effective antimicrobial was found to be gentamicin, followed by ciprofloxacin. Amoxicillin/clavulanic acid, the first-line treatment according to the STGs, was found to be ineffective for many of the isolated pathogens. The most commonly isolated pathogens were Proteus mirabilis, Enterococcus faecalis and Pseudomonas aeruginosa. CONCLUSION: These findings demonstrate the urgent need to reassess the STGs and base treatment plans on local epidemiological data. This study provides valuable data on common causative pathogens in DFU infections, as well as the resistance patterns of these pathogens, forming a baseline on which to base future DFU treatment plans.
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Antibacterianos , Pie Diabético , Pruebas de Sensibilidad Microbiana , Humanos , Pie Diabético/microbiología , Pie Diabético/tratamiento farmacológico , Sudáfrica/epidemiología , Antibacterianos/uso terapéutico , Masculino , Femenino , Persona de Mediana Edad , Sector Público , AncianoRESUMEN
BACKGROUND AND PURPOSE: Although air pollution (AP) has been associated with stroke and dementia, data regarding its relationship with covert cerebrovascular disease (cCVD) and cognition over time are sparse. The aim of this study was to explore these relationships. METHODS: A prospective population-based study of 976 stroke-free and non-demented individuals living in Barcelona, Spain, was conducted during 2010-2016. A land use regression model was used to estimate the exposure of each participant to AP: NOx, NO2, PM2.5, PM10, PMcoarse and PM2.5 absorbance. Cognitive function and cCVD were assessed at baseline (n = 976) and 4 years after (n = 317). Multivariate-adjusted models were developed. RESULTS: At baseline, 99 participants (10.1%) had covert brain infarcts and 91 (9.3%) had extensive periventricular white matter hyperintensities (WMHs). Marked subcortical WMH progression was seen in 19.7%; the incidence of other covert cerebrovascular lessons ranged between 5% and 6% each. PM2.5 was related to higher odds of having a covert brain infarct (odds ratio [OR] 2.21; 95% confidence interval [CI] 1.06-4.60). PM2.5 absorbance was related to higher odds of having extensive subcortical WMHs (OR 1.72; 95% CI 1.13-2.60), whereas NO2 was related to higher odds of having extensive subcortical (OR 1.66; 95% CI 1.17-2.35) or periventricular (OR 1.96; 95% CI 1.10-3.50) WMHs and to higher odds of developing marked subcortical WMH progression (OR 1.40; 95% CI 1.05-1.90). NOx was related to incident cerebral microbleeds (OR 1.36; 95% CI 1.04-1.79). There was no association between AP and cognition. CONCLUSIONS: Air pollutant predicts the presence and accumulation of cCVD. Its impact on cognitive impairment remains to be determined.
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We show in experiments that a long, underdense, relativistic proton bunch propagating in plasma undergoes the oblique instability, which we observe as filamentation. We determine a threshold value for the ratio between the bunch transverse size and plasma skin depth for the instability to occur. At the threshold, the outcome of the experiment alternates between filamentation and self-modulation instability (evidenced by longitudinal modulation into microbunches). Time-resolved images of the bunch density distribution reveal that filamentation grows to an observable level late along the bunch, confirming the spatiotemporal nature of the instability. We provide a rough estimate of the amplitude of the magnetic field generated in the plasma by the instability and show that the associated magnetic energy increases with plasma density.
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BACKGROUND AND OBJECTIVES: Examination anxiety is a common occurrence, and is potentially detrimental to student attainment. In recent theorizing, it has been suggested that cognitive appraisals, as put forth in cognitive appraisal theory, and irrational beliefs, as put forth in rational emotive behavior therapy, may interact to predict affectivity. The current research examines the antecedents and associates of examination affect and academic self-concept in undergraduate students. DESIGN: A preliminary study applied confirmatory factor analysis (CFA) to test the factor structure of an irrational beliefs inventory. Study 1 utilized a cross-sectional and correlational approach to testing core theoretical assumptions. Study 2 took a two-wave longitudinal and path analytical approach to examine temporal effects between target variables. METHOD: All self-report data collection took place in the United Kingdom with university students. We recruited n = 1150, n = 362, n = 662 for preliminary, study 1, and study 2, respectively. RESULTS: Across studies, data indicated that a pattern of adaptive cognitive appraisal was associated with more advantageous affectivity, and better academic self-concept. CONCLUSIONS: Reciprocal temporal relationships were revealed between many variables, supporting an interactive and bidirectional view of how cognition and affect are related pertaining to examination anxiety.
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The MAST-U Super-X divertor provides the opportunity to study fusion plasma exhaust under novel conditions. However, in order to study these conditions, advanced diagnostics are required. Following the development of the MAST-U Multi-Wavelength Imaging (MWI) diagnostic, we present the installation of a multi-delay coherence imaging spectroscopy (CIS) system within the MAST-U MWI, along with modifications made to the MWI for effective operation. This diagnostic will measure either carbon ion flow velocities and temperatures or electron densities through Dγ emission. We have extended previously developed techniques for wavelength calibration to account for errors due to the misalignment of interferometer components. In addition, we have developed a comprehensive calibration procedure to account for the temperature dependence of the instrument's delays by fitting to a linearly modified version of the delay equation presented by Veiras et al. [Appl. Opt. 49(15), 2769 (2010)]. Together, these procedures reduce the cost and hardware complexity of implementing CIS instruments when compared to those that use in situ or tunable laser calibration systems, as calibrations can be generated to good accuracy using previously measured data.
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INTRODUCTION: Untargeted direct mass spectrometric analysis of volatile organic compounds has many potential applications across fields such as healthcare and food safety. However, robust data processing protocols must be employed to ensure that research is replicable and practical applications can be realised. User-friendly data processing and statistical tools are becoming increasingly available; however, the use of these tools have neither been analysed, nor are they necessarily suited for every data type. OBJECTIVES: This review aims to analyse data processing and analytic workflows currently in use and examine whether methodological reporting is sufficient to enable replication. METHODS: Studies identified from Web of Science and Scopus databases were systematically examined against the inclusion criteria. The experimental, data processing, and data analysis workflows were reviewed for the relevant studies. RESULTS: From 459 studies identified from the databases, a total of 110 met the inclusion criteria. Very few papers provided enough detail to allow all aspects of the methodology to be replicated accurately, with only three meeting previous guidelines for reporting experimental methods. A wide range of data processing methods were used, with only eight papers (7.3%) employing a largely similar workflow where direct comparability was achievable. CONCLUSIONS: Standardised workflows and reporting systems need to be developed to ensure research in this area is replicable, comparable, and held to a high standard. Thus, allowing the wide-ranging potential applications to be realised.
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Espectrometría de Masas , Compuestos Orgánicos Volátiles , Compuestos Orgánicos Volátiles/análisis , Espectrometría de Masas/métodos , Espectrometría de Masas/normas , Humanos , Metabolómica/métodos , Metabolómica/normasRESUMEN
Against the backdrop of the COVID-19 pandemic, workplace wellbeing is a key priority for employers. Severe market and health conditions continue to bring inevitable problems that could be reduced with the application of psychological interventions to prevent mental and physical health issues, making this study a highly pertinent and valuable contribution to the field. This paper reports the effects of a rational emotive behaviour therapy (REBT) programme on the irrational beliefs and emotional reactivity of 56 office-based sales professionals located in the northwest region of the UK. A pre-test, post-test experimental design was utilised, and a mixed model ANOVA (repeated measures) was adopted to assess changes in mean differences concerning irrational beliefs and emotional reactivity at pre and post-test stages for the intervention group, in comparison to a control group. Results indicate that those in the REBT group reported significant reductions in irrational beliefs and emotional reactivity, whilst those in the control group reported no such changes. It is recommended that future research studies consider utilizing a mixed methods design and focus on a strategic collaboration of organisational and individual level interventions for improving the psychological wellbeing and performance of sales personnel.
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COVID-19 , Emociones , Humanos , Masculino , Adulto , Reino Unido , Femenino , COVID-19/psicología , Persona de Mediana Edad , Psicoterapia Racional-Emotiva , Comercio , Lugar de Trabajo/psicología , SARS-CoV-2RESUMEN
AIM: Despite the documented benefits of the World Health Organisation Patient Safety Checklist compliance rates with implementation continue to cause risk to patient safety. This qualitative systematic review aimed to explore the reported factors that impact compliance and implementation processes related to surgical safety checklists in perioperative settings. DESIGN: A qualitative systematic review. METHODS: A systematic review using the Joanna Briggs Institute (JBI) approach to synthesize qualitative studies was conducted and reported according to PRISMA guidelines. Electronic databases were expansively searched using keywords and subject headings. Articles were assessed using a pre-selected eligibility criterion. Data extraction and quality appraisal was undertaken for all included studies and a meta-aggregation performed. DATA SOURCES: The CINAHL, Medline and Scopus databases were searched in August 2022 and the search was repeated in June 2023. RESULTS: 34 studies were included. Following the synthesis of the findings there were multiple interrelating barriers to checklist compliance that impacted implementation. There were more barriers than enablers reported in existing studies. Enablers included effective leadership, education and training, timely use of audit and feedback, local champions, and the option for local modifications to the surgical checklist. Further research should focus on targeted interventions that improve observed compliance rates to optimize patient safety. CONCLUSION: This qualitative systematic review identified multiple key factors that influenced the uptake of the Surgical Safety Checklist in operating theatres. IMPLICATIONS FOR THE PROFESSION AND/OR PATIENT CARE: Surgeon participation, hierarchical culture, complacency, and duplication of existing safety processes were identified which impacted the use and completion of the checklist.
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Lista de Verificación , Cirujanos , Humanos , Quirófanos , Seguridad del Paciente , Investigación CualitativaRESUMEN
Paediatric clinical trials are critical to ensure that medications prescribed to children are safe and effective. However, evidence-based dosing and labelling of such medications remain limited, and most clinical trials in paediatrics fail. Factors for lack of trial completion include performance at site level (limited patient recruitment, limited site staff experience and lack of infrastructure), the sponsor team (limited paediatric specific expertise in design, uncertainties on robustness of biomarkers or outcome variables) as well as regulatory and administrative burdens. As a result of the growing demand for site support, the Belgian Paediatric Clinical Research Network (BPCRN) established in 2009 has been relaunched in 2018 to improve paediatric clinical trials, with the support of innovative-medicines-initiative 2 (IMI2) pan-European network conect4children (c4c) and the transatlantic network I-ACT for Children (US).This paper highlights the formation of the BPCRN and the practical insights it offers for advancing paediatric clinical trials through national networks. A national network can improve trial quality, safety and efficiency, provide clinical research expertise, identify suitable sites, and help with troubleshooting of common trial issues. The BPCRN's centralized approach has advanced paediatric clinical trials by streamlining communication and standardizing trial conduct. Challenges and opportunities have arisen, including a relaunch in 2018, orphan medicine trials, and network sustainability. Collaboration between network activities, government support, site-level improvements, efficient communication, and interaction with industry are key to achieve lasting transformation in paediatric medicine research.
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Ensayos Clínicos como Asunto , Selección de Paciente , Niño , Humanos , Bélgica , Ensayos Clínicos como Asunto/organización & administraciónRESUMEN
Treatments for organ-confined prostate cancer include external beam radiation therapy, radical prostatectomy, radiotherapy/brachytherapy, cryoablation and high-intensity focused ultrasound. None of these are cancer-specific and are commonly accompanied by side effects, including urinary incontinence and erectile dysfunction. Moreover, subsequent surgical treatments following biochemical recurrence after these interventions are either limited or affected by the scarring present in the surrounding tissue. Carnosine (ß-alanyl-L-histidine) is a histidine-containing naturally occurring dipeptide which has been shown to have an anti-tumorigenic role without any detrimental effect on healthy cells; however, its effect on prostate cancer cells has never been investigated. In this study, we investigated the effect of carnosine on cell proliferation and metabolism in both a primary cultured androgen-resistant human prostate cancer cell line, PC346Flu1 and murine TRAMP-C1 cells. Our results show that carnosine has a significant dose-dependent inhibitory effect in vitro on the proliferation of both human (PC346Flu1) and murine (TRAMP-C1) prostate cancer cells, which was confirmed in 3D-models of the same cells. Carnosine was also shown to decrease adenosine triphosphate content and reactive species which might have been caused in part by the increase in SIRT3 also shown after carnosine treatment. These encouraging results support the need for further human in vivo work to determine the potential use of carnosine, either alone or, most likely, as an adjunct therapy to surgical or other conventional treatments.
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Braquiterapia , Carnosina , Disfunción Eréctil , Neoplasias de la Próstata , Masculino , Humanos , Animales , Ratones , Carnosina/farmacología , Carnosina/química , Neoplasias de la Próstata/tratamiento farmacológico , Neoplasias de la Próstata/cirugía , Dipéptidos , Braquiterapia/efectos adversos , Disfunción Eréctil/etiologíaRESUMEN
BACKGROUND: Children and young people affected by kidney failure experience complexities in their care. Little is known about the unique needs of this young patient population group living with a long-term condition. OBJECTIVE: A meta-aggregation of all qualitative studies was conducted to identify experiences of supportive care among children and young people living with kidney failure. METHODS: A systematic review of qualitative studies was conducted following the Joanna Briggs Institute meta-aggregation method. This review has been reported according to the PRISMA statement guidelines. Six electronic databases (CINAHL, Cochrane Library, MEDLINE, Proquest, PsycINFO, and Scopus) were comprehensively searched by an expert systematic review librarian using keywords and subject headings, from inception to September 2022. All studies were accessed using a predetermined inclusion and exclusion criteria. Methodological quality assessment and data extraction performed. Qualitative findings accompanied by illustrative quotes from included studies were extracted and grouped into categories which created the overall synthesised findings. RESULTS: A total of 34 studies were included in this review representing a total of 613 children and young people affected by kidney failure. There was a total of 190 findings which created 13 categories representing experiences of supportive care. The meta-aggregation developed five synthesised findings namely: 'physical needs', 'information and technology', 'treatment and healthcare', 'social needs' and 'psychological impacts'. CONCLUSION: This systematic review identified that children and young people affected by kidney failure can experience a range of unmet supportive care needs in routine clinical services. Kidney failure impacted children and young people's self-identify, social and peer networks, introduced daily practical needs because of inherent physical and psychological burden due to the failure and associated treatments. Despite improvements in the medical management of kidney failure in children and young people, further attention is needed to optimise supported self-management in this young patient group.
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Investigación Cualitativa , Insuficiencia Renal , Humanos , Niño , Insuficiencia Renal/psicología , Insuficiencia Renal/terapia , Insuficiencia Renal/complicaciones , Adolescente , Apoyo SocialRESUMEN
PURPOSE: This study aimed to understand the experiences, needs, and preferences for supportive care, among children and adolescents (0-19 years) diagnosed with cancer. METHODS: A qualitative systematic review has been reported according to PRISMA guidelines. A comprehensive search was conducted across multiple databases (APA PsycINFO, CINAHL, and Medline) and citation searches. Studies were screened according to pre-determined inclusion and exclusion criteria. Methodological quality was evaluated. Findings were extracted in relation to the context of interest of experiences, needs, and preferences of supportive care. Each finding was accompanied by a qualitative verbatim illustration representing the participant's voice. RESULTS: 4449 publications were screened, and 44 studies were included. Cancer populations represented in the included studies included lymphoma, leukaemia, brain cancer, sarcomas, and neuroblastoma. Two overarching synthesised findings were identified as (1) coping, caring relationships, communication, and impact of the clinical environment, and (2) experiences of isolation, fear of the unknown, restricted information, and changing self. Children and adolescents articulated that cancer care would be enhanced by developing a sense of control over their body and healthcare, being involved in communication and shared decision-making, and ensuring the clinical environment is age-appropriate. Many experienced a sense of disconnection from the rest of the world (including peers, school, and experiences of prejudice and bullying), and a lack of tailored support and information were identified as key unmet care needs that require further intervention. CONCLUSIONS: Children and adolescent who are diagnosed with cancer are a unique and understudied group in oncological survivorship research, with the slowest progress in improvement of care over time. This review will facilitate the development of future interventions and promote the importance of tailored support for children and adolescents at all stages of the cancer journey. IMPLICATIONS FOR CANCER SURVIVORS: Children and adolescents continue to experience a range of difficulties despite routine contact with cancer healthcare professionals. Children and adolescents should be carefully assessed about their individual circumstances and preferences for support given the clear implications from this review that "one size" does not fit all.
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OBJECTIVE: To critically synthesize and describe the use and methods of ecological momentary assessment (EMA) in cancer research. DATA SOURCES: A systematic review was conducted and has been reported according to the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) Guideline. Electronic databases (APA PsycINFO, CINAHL, Cochrane Central Register of Controlled Trials, MEDLINE, Scopus, and Web of Science Core Collection) were searched using a variety of keywords and subject headings by an expert systematic review librarian. All publications were double screened by two reviewers using predetermined exclusion and inclusion criteria throughout the full review process. The review used Covidence Systematic Review Software. Methodological quality assessment and data extraction were performed. A narrative synthesis was conducted to examine the aim for EMA, the characteristics of the study samples, the EMA sampling procedures, EMA completion rates, outcome measures, and any implications of findings for survivorship care. CONCLUSION: A total of 42 EMA studies in cancer were included. Most studies used an electronic mobile device to capture EMA data apart from several that used paper diaries. Existing studies were found to have significant heterogeneity in methods and widely varying approaches to design and self-report measurements. While EMA in cancer research holds significant promise to advance cancer care research into the future by increasing ecological validity and reducing retrospective bias and can capture the unique idiographic within-person change over time, in real-time, further research is needed to develop standardized EMA self-report questionnaires. IMPLICATIONS FOR NURSING PRACTICE: This is the first comprehensive systematic review to describe the use and methods of EMA in cancer research. There is significant heterogeneity in methods and widely varying approaches to design and self-report measurements in EMA cancer research. People affected by cancer found taking part in EMA studies reported benefit from the experience. However, researchers must engage with cancer survivors in the development and co-design of future EMA questionnaires to ensure relevant and acceptability of EMA data collection protocols.
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Evaluación Ecológica Momentánea , Neoplasias , Humanos , Estudios Retrospectivos , Encuestas y Cuestionarios , Autoinforme , Proyectos de InvestigaciónRESUMEN
OBJECTIVE: The term "scanxiety" has been coined to describe the anxiety commonly associated with individuals undergoing cancer-related imaging. Despite the prevalence and severity of scanxiety across various clinical and demographic populations, there remains a significant lack of qualitative insights from existing studies that effectively capture patients' experiences of scanxiety in their own words. Therefore, this review addresses the following research question: What are the experiences of scanxiety distress among people affected by cancer across the cancer care continuum? DATA SOURCES: Following the PRISMA methodology, a meta-aggregation of qualitative studies was performed, encompassing patients of all age groups who had been diagnosed with cancer or were indicated for a cancer-related scan. Of the 556 articles screened, 15 were deemed eligible for inclusion in the analysis. CONCLUSION: The three overarching themes of 1) experience of "scan-itis," 2) experience of "patient-clinician support," and 3) development of self-management strategies reveal the complex and interconnected factors that influence scanxiety in individuals undergoing cancer-related imaging. These findings emphasized distress experienced by patients during the waiting period for scan results, the act of viewing the results, and even the delivery of "bad" news. Consequently, patients expressed a strong desire for increased information, communication, and empathy from attending healthcare providers. Patients also report a myriad of self-coping strategies to manage their scanxiety well before, during, and after their scan appointment. IMPLICATIONS FOR NURSING PRACTICE: The study highlights the need for targeted interventions for those undergoing cancer-related scans, including increased awareness and education for health professionals regarding scanxiety.
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Neoplasias , Humanos , Neoplasias/complicaciones , Neoplasias/diagnóstico , Adaptación Psicológica , Investigación Cualitativa , CintigrafíaRESUMEN
BACKGROUND AND PURPOSE: A global decrease in brain perfusion has recently been reported during exposure to a ground-based spaceflight analog. Considering that CSF and glymphatic flow are hypothesized to be propelled by arterial pulsations, it is unknown whether a change in perfusion would impact these CSF compartments. The aim of the current study was to evaluate the relationship among changes in cerebral perfusion, ventricular volume, and perivascular space volume before, during, and after a spaceflight analog. MATERIALS AND METHODS: Eleven healthy participants underwent 30 days of bed rest at 6° head-down tilt with 0.5% atmospheric CO2 as a spaceflight analog. For each participant, 6 MR imaging brain scans, including perfusion and anatomic-weighted T1 sequences, were obtained before, during, and after the analog period. Global perfusion, ventricular volume, and perivascular space volume time courses were constructed and evaluated with repeated measures ANOVAs. RESULTS: Global perfusion followed a divergent time trajectory from ventricular and perivascular space volume, with perfusion decreasing during the analog, whereas ventricular and perivascular space volume increased (P < .001). These patterns subsequently reversed during the 2-week recovery period. CONCLUSIONS: The patterns of change in brain physiology observed in healthy participants suggest a relationship between cerebral perfusion and CSF homeostasis. Further study is warranted to determine whether a causal relationship exists and whether similar neurophysiologic responses occur during spaceflight.
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Vuelo Espacial , Humanos , Vuelo Espacial/métodos , Encéfalo/irrigación sanguínea , Imagen por Resonancia Magnética/métodos , Inclinación de Cabeza/fisiología , Perfusión , Circulación Cerebrovascular/fisiologíaRESUMEN
Despite widespread adoption and advances in endoscopic skull base surgery, with expanding indications and the ability to effectively treat larger and more complex pathologies, skull base reconstruction following tumor resection and prevention of cerebrospinal fluid leak remains a challenge for even the most seasoned of surgical teams. Mounting evidence in all areas have pushed our understanding of skull base reconstruction principles forward. In this narrative review, we summarize critical concepts and provide practical but comprehensive guiding principles on preoperative, intraoperative/technical, and postoperative management principles related to optimizing skull base reconstructive success. The goal is to provide an informative resource for skull base surgeons (both otolaryngologists and neurosurgeons) to reference regarding state-of-the-art evidence surrounding this ever-evolving topic.
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Procedimientos de Cirugía Plástica , Neoplasias de la Base del Cráneo , Humanos , Complicaciones Posoperatorias/prevención & control , Complicaciones Posoperatorias/cirugía , Base del Cráneo/cirugía , Colgajos Quirúrgicos/cirugía , Pérdida de Líquido Cefalorraquídeo/prevención & control , Pérdida de Líquido Cefalorraquídeo/cirugía , Neoplasias de la Base del Cráneo/cirugía , Endoscopía , Estudios RetrospectivosRESUMEN
INTRODUCTION: To critically synthesise evidence in relation to the holistic care impacts (physical, psychological, social, spiritual, and environmental well-being) among individuals living in residential aged care facilities (RACFs) with restrictions during the COVID-19 pandemic. METHODS: An integrative systematic review followed a pre-registered protocol and has been reported according to the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) Guidelines. Electronic databases were searched from inception to June 2022. Qualitative, quantitative, and mixed methods studies were included. All articles were double screened according to a pre-determined eligibility criterion. The review process was managed using Covidence systematic review software. Data from the studies were extracted, methodological quality appraisal conducted, and a narrative synthesis conducted. RESULTS: 18 studies were included. The impact of restrictive practices and periods of lockdown impacted older people on all levels of individual quality-of-life. With or without COVID-19, residents experienced functional decline and many experienced malnutrition, increased incontinence, increased pain, and poorer general health and significant psychological distress. Depression increased with reduced social contact, as did anxiety and loneliness. Some residents spoke of suicidal ideation. CONCLUSION: It is highly plausible that further outbreaks may prompt knee-jerk reactions from public health departments and governing bodies to continue to restrict and lockdown facilities. Public health COVID-19 outbreak policy for aged care across the globe will need to consider the benefits verses risk debate given the findings uncovered in this review. These findings showed that it is vital that policy considers quality-of-life domains not solely survival rates.
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COVID-19 , Anciano , Humanos , Control de Enfermedades Transmisibles , COVID-19/epidemiología , Hogares para Ancianos , Soledad , PandemiasRESUMEN
Sequence-specific fluorescent probes for RNA are widely used in microscopy applications such as fluorescence in situ hybridization and a growing number of newer approaches to live-cell RNA imaging. The sequence specificity of most of these approaches relies on differential hybridization of the probe to the correct target. Competing sequences with only one or two base mismatches are prone to causing off-target recognition. Here, we report the sequence-specific fluorescent detection of model RNA targets using a tricyclic cytidine analogue DEAtC that is included as a surrogate for natural cytidine in DNA probe strands and that reports directly on Watson-Crick base pairing. The DEAtC-containing DNA oligonucleotide probes exhibit an average 8-fold increase in fluorescence intensity when hybridized to matched RNA with DEAtC base paired with G and little fluorescence turn-on when DEAtC is base paired with A. Duplex structure determination by NMR, time-resolved fluorescence studies, and Stern-Volmer quenching experiments suggest that the combination of greater π stacking and narrower grooves in the A-form DNA-RNA heteroduplex provides additional shielding and favorable electronic interactions between bases, explaining why DEAtC's fluorescence turn-on response to RNA targets is typically 3-fold greater than for DNA targets.
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Citidina , ARN , ARN/química , Citidina/química , Hibridación Fluorescente in Situ , ADN/química , Sondas de ADN , Sondas de Oligonucleótidos/química , Colorantes Fluorescentes/químicaRESUMEN
PURPOSE: To critically synthesise qualitative research to understand experiences of supportive care in people affected by brain cancer and their informal caregivers. METHODS: A qualitative systematic review was conducted according to the Joanna Briggs methodology and has been reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) Guidelines. Electronic databases were searched by an expert systematic review librarian for all qualitative studies irrespective of research design. All publications were double screened by two reviewers using a pre-determined exclusion and inclusion criteria. The review was managed using Covidence systematic review software. Methodological quality assessment and data extraction were performed. Qualitative findings accompanied by illustrative quotes from included studies were extracted and grouped into categories, which created the overall synthesised findings. RESULTS: A total of 33 studies were included which represented a total sample of 671 participants inclusive of 303 patients and 368 informal caregivers. There was a total of 220 individual findings included in this review, which were synthesised into two findings (1) caregivers and patients perceived supports which would have been helpful and (2) caregiver and patient experiences of unmet supportive care needs. CONCLUSION: This review highlighted the suffering and distress caused by brain cancer and associated treatments. Both patients and their informal caregivers experienced disconnect from themselves in renegotiating roles, and a profound sense of loneliness as the physical deterioration of the disease progressed. Both patients and informal caregivers reported similar unmet needs within the current service provision for brain cancer. However, what is apparent is that current cancer services are provided solely for patients, with little or no consideration to the support needs of both the patient and their informal caregiver. Service re-design is needed to improve care coordination with individualised informational support, implementation of holistic needs assessments for both the patients and their caregivers, better community support provision, improved opportunities for emotional care with early referral for palliative care services. IMPLICATIONS FOR CANCER SURVIVORS: It is recommended that members of the multidisciplinary brain cancer team reflect on these findings to target holistic needs assessments and develop shared self-management care plans for both the patient and the informal caregiver.