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Objective.To investigate the potential of 3D-printable thermoplastics as tissue-equivalent materials to be used in multimodal radiotherapy end-to-end quality assurance (QA) devices.Approach.Six thermoplastics were investigated: Polylactic Acid (PLA), Acrylonitrile Butadiene Styrene (ABS), Polyethylene Terephthalate Glycol (PETG), Polymethyl Methacrylate (PMMA), High Impact Polystyrene (HIPS) and StoneFil. Measurements of mass density (ρ), Relative Electron Density (RED), in a nominal 6 MV photon beam, and Relative Stopping Power (RSP), in a 210 MeV proton pencil-beam, were performed. Average Hounsfield Units (HU) were derived from CTs acquired with two independent scanners. The calibration curves of both scanners were used to predict averageρ,RED and RSP values and compared against the experimental data. Finally, measured data ofρ,RED and RSP was compared against theoretical values estimated for the thermoplastic materials and biological tissues.Main results.Overall, goodρand RSP CT predictions were made; only PMMA and PETG showed differences >5%. The differences between experimental and CT predicted RED values were also <5% for PLA, ABS, PETG and PMMA; for HIPS and StoneFil higher differences were found (6.94% and 9.42/15.34%, respectively). Small HU variations were obtained in the CTs for all materials indicating good uniform density distribution in the samples production. ABS, PLA, PETG and PMMA showed potential equivalency for a variety of soft tissues (adipose tissue, skeletal muscle, brain and lung tissues, differences within 0.19%-8.35% for all properties). StoneFil was the closest substitute to bone, but differences were >10%. Theoretical calculations of all properties agreed with experimental values within 5% difference for most thermoplastics.Significance.Several 3D-printed thermoplastics were promising tissue-equivalent materials to be used in devices for end-to-end multimodal radiotherapy QA and may not require corrections in treatment planning systems' dose calculations. Theoretical calculations showed promise in identifying thermoplastics matching target biological tissues before experiments are performed.
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Fótons , Polimetil Metacrilato , Impressão Tridimensional , Terapia com Prótons , Humanos , Terapia com Prótons/métodos , Terapia com Prótons/instrumentação , Polimetil Metacrilato/química , Poliésteres/química , Plásticos , Poliestirenos/química , Calibragem , Garantia da Qualidade dos Cuidados de Saúde , Imagens de Fantasmas , Planejamento da Radioterapia Assistida por Computador/métodos , Dosagem Radioterapêutica , Teste de Materiais , Resinas Acrílicas , ButadienosRESUMO
Background Individuals with opioid dependence often experience poor oral health, including dental decay, periodontal disease and mucosal infection, frequently exacerbated by factors such as smoking, alcohol consumption, inadequate oral hygiene and low utilisation of oral health services. This study aimed to assess oral health status and oral health-related quality of life (OHRQoL) among opioid-dependent individuals and explore their potential associations. Methods Participants enrolled in an opioid treatment program (OTP) at three Australian urban clinics were assessed using the validated Oral Health Assessment Tool (OHAT) and Oral Health Impact Profile (OHIP-14). Results The average age of the 75 participants was 44.7years, with 45% receiving opioid treatment for over 5years. Dental decay and inadequate oral hygiene were prevalent. Mean OHAT and OHIP-14 scores were 6.93 and 20.95 respectively, indicating moderate oral health severity and poor OHRQoL. Physical pain and psychological discomfort significantly impacted participants' quality of life, with the effects being particularly pronounced for those aged 30 and above. An exploratory analysis revealed a strong correlation between OHAT and OHIP-14 severity scores, with a one-point increase in OHAT associated with 1.85times higher odds of a lower OHRQoL (odds ratio=1.85, 95% confidence interval: 1.38-2.49, P = Conclusions These findings underscore the multifaceted impact of oral health on the well-being of OTP clients. Routine dental check-ups, education on oral hygiene practices and timely treatment for oral health problems are crucial recommendations based on this study. Such measures hold the potential to enhance the quality of life for individuals attending OTPs.
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Transtornos Relacionados ao Uso de Opioides , Saúde Bucal , Qualidade de Vida , Humanos , Qualidade de Vida/psicologia , Masculino , Estudos Transversais , Feminino , Saúde Bucal/estatística & dados numéricos , Adulto , Austrália , Pessoa de Meia-Idade , Transtornos Relacionados ao Uso de Opioides/psicologia , Nível de SaúdeRESUMO
A fit man in his 60s presented with an infected Achilles tendon (AT) following two failed repairs for a traumatic rupture. Initial debridement of necrotic tissue resulted in a large soft tissue defect requiring robust coverage. Following aggressive wound management, an anterolateral thigh flap was elevated with tensor fasciae latae (TFL) which was triple-rolled to provide soft tissue coverage and tendon reconstruction.The flap remained healthy and was monitored with a flow coupler device. Initially, the foot was placed in plantarflexion before gradually increasing the angle to neutral and a thermoplastic splint was used to offload pressure on the flap. Following 1 month of non-weight-bearing, gentle mobilisation began. Three months postoperatively, the patient could walk, had resumed indoor cycling and demonstrated a comparable heel raise with the contralateral side. MRI showed a taut TFL attached to the distal AT and ultrasound showed a smoothly gliding TFL.
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Tendão do Calcâneo , Lesões dos Tecidos Moles , Masculino , Humanos , Coxa da Perna , Lesões dos Tecidos Moles/cirurgia , Resultado do Tratamento , Retalhos Cirúrgicos , Tendão do Calcâneo/cirurgia , Tendão do Calcâneo/lesõesRESUMO
Introduction: In the United Kingdom (UK), complications that arise following the administration of Botulinum Toxin are reported to the Medicines and Health Regulatory Agency (MHRA) via the Yellow Card Reporting Scheme. Over the past decade, there has been a significant increase in the number of non-surgical aesthetic procedures. Concerns have been raised that the MHRA is not fully capturing complications in terms of volume and impact on patients. Aim: This novel study explores the lived experiences of individuals who have experienced an adverse event following administration of Botulinum Toxin for aesthetic purposes. Using a combination of qualitative and quantitative methodologies, this analysis evaluates data relating to long-lasting physical, psychological, emotional, and financial sequelae of complications arising from cosmetic Botulinum Toxin injections in the UK. Methods: A mixed method, qualitative and quantitative approach was adopted to gain comprehensive insights into patients' experiences. A focus group which comprised patient representatives, psychologists, and researchers reached a consensus on a 17-question survey which was disseminated via social media channels. Deductive thematic analysis was used to analyse coded themes. Furthermore, for secondary analysis, sentiment analysis was used computationally as an innovative approach to identify and categorise free text responses associated with sentiments using natural language processing (NLP). Results: In the study, 655 responses were received, with 287 (44%) of respondents completing all questions. The mean age of respondents was 42.6 years old. 94.1% of respondents identified as female. In the sample, 79% of respondents reported an adverse event following their procedure, with the most common event being reported as 'anxiety'. Findings revealed that 69% of respondents reported long-lasting adverse effects. From the responses, 68.4% reported not having recovered physically, 63.5% of respondents stated that they had not recovered emotionally from complications, and 61.7% said that they have not recovered psychologically. In addition, 84% of respondents stated that they do not know who regulates the aesthetics industry. Furthermore, 92% of participants reported that their clinic or practitioner did not inform them about the Yellow Card Reporting Scheme. The sentiment analysis using the AFINN Lexicon yielded adjusted scores ranging from -3 to +2, with a mean value of -1.58. Conclusion: This is the largest survey in the UK completed by patients who experienced an adverse outcome following the aesthetic administration of Botulinum Toxin. Our study highlights the extent of the challenges faced by patients who experience an adverse event from physical, emotional, psychological, and financial perspectives. The lack of awareness of MHRA reporting structures and the lack of regulation within the UK's cosmetic injectables sector represent a significant public health challenge.
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Background: While direct oral anticoagulants (DOACs) have less stringent monitoring, favorable pharmacokinetics, and fewer drug interactions compared to warfarin, there is still a potential for drug-drug interactions. There is limited evidence showing total impact of DOAC drug interactions on major bleeding events. Methods: This was an IRB-approved retrospective, case control, single center study. Patients were included if they had received a DOAC from January 2012 to September 2019 and were identified for major bleeding events and matched to a control group. The primary objective was to compare the presence of major drug interactions between patients on DOACs who did and did not have a major bleeding event. The secondary objectives were to compare the impact of specific interacting drug classes and their additive effects on major bleeding events. Results: There were 122 patients included in the study. While the number of patients on at least one interacting medication within duration of DOAC use was numerically higher in the bleed group (85% vs 72%), this was not significant (P = .077). There were significantly more patients on at least three interacting medications within the last 3 months of the study period in the bleed group (n = 9 vs 1), with significantly higher use of aspirin (n = 38 vs 17) and rate control agents (n = 24 vs 11). Conclusion: There may be a cumulative effect on risk of bleeding if patients are on three or more interacting medications concomitantly with a DOAC. This risk of bleeding may be higher with aspirin and rate control agents.
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Anticoagulantes , Fibrilação Atrial , Humanos , Anticoagulantes/efeitos adversos , Rivaroxabana/efeitos adversos , Estudos Retrospectivos , Dabigatrana/efeitos adversos , Fibrilação Atrial/induzido quimicamente , Hemorragia/induzido quimicamente , Hemorragia/epidemiologia , Aspirina/efeitos adversos , Interações Medicamentosas , Administração OralRESUMO
Background: Although there is evidence demonstrating successful implementation of SMART (specific, measurable, achievable, relevant, time-bound) goals in clinical settings, their impact on improving diabetes control has not been well-established. Objective: The primary objective was to determine the association between setting SMART goals and change in A1c among a Veteran population. Methods: This was an IRB-approved retrospective, case-control study. Patients with Type 2 diabetes mellitus (DM) managed virtually by a Clinical Pharmacy Specialist at a VA Community-Based Outpatient Clinic were eligible for inclusion. The electronic medical record was used to identify patients that set a SMART goal for DM management during the study timeframe. These patients were matched to a similar cohort of patients that did not set a SMART goal. Results: There were 100 patients included in the study. Goal A1c was achieved in 30% of patients in the SMART goal group compared with 24% of patients in the control group. There was a 1.2% reduction in A1c from baseline to 3 months in the SMART goal group vs .85% in the control group (P = .287). The mean number of medication changes per patient was 1.7 in the SMART goal group vs 2.1 in the control group (P = .174). Patients in the SMART goal group set an average of 1.5 SMART goals during the study period. Conclusion: Overall, patients that set SMART goals had clinically meaningful A1c lowering. Setting SMART goals for DM management in agreeable patients during diabetes telehealth visits may lead to fewer medication changes and improved diabetes control.
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BACKGROUND: The General Medical Council (GMC) states that all intimate examinations should have a chaperone offered. Documentation of chaperone identity, or patient's refusal, is essential. OBJECTIVE: This project aimed to improve documentation of chaperones during intimate examination of patients based in a Surgical Admissions Unit (SAU) within a large tertiary hospital in the Southwest of the UK. METHODS: A Plan-Do-Study-Act (PDSA) cycle structure was used. Initial data collection and planning occurred in December 2019. Intervention implementation and analysis occurred from January 2020 to March 2021. Intervention 1 involved presenting results at a clinical governance meeting. Intervention 2 was information posters in the SAU and intervention 3 involved training sessions for nursing staff. Intervention 4 was editing the surgical clerking proforma. RESULTS: Prior to interventions, chaperone identity or patient's refusal was correctly documented only 9.7% (N = 7 out of 72) of the time. Intervention 1 increased this to 34.6%. Following interventions 3 and 4, correct documentation was 25.0% and 28.6% respectively. After intervention 4 correct documentation was at 59.1%. CONCLUSIONS: Initial documentation of chaperones was poor. Interventions 1 to 3 were successful in educating clinicians how to document accurately, but engaging individuals in person was more successful than passive education through posters. Changing the proforma structure was the most successful intervention. This suggests a visual reminder for clinicians at the point of contact with the patient is the most effective way to encourage correct documentation of chaperones, improving patient care and clinical practice.
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Documentação , Exame Físico , Humanos , Exame Físico/métodos , Centros de Atenção Terciária , HospitalizaçãoRESUMO
BACKGROUND: Pierre Robin sequence (Robin sequence) is defined as the triad of micrognathia, glossoptosis, and airway obstruction. It is frequently associated with palatal clefting. In recent years, increased interest in speech outcomes of cleft patients diagnosed with Robin sequence has been shown. METHODS: Speech outcomes of cleft patients with Robin sequence were assessed at age 5 in comparison with a cleft palate-only cohort. Speech parameters were evaluated according to the Cleft Audit Protocol for Speech-Augmented and analyzed using the National Audit Standards for Speech (United Kingdom). All patients were treated in the same institution during the same period (2005 to 2012). Subjects who needed nasopharyngeal airway support and those whose airway was managed by positioning only were eligible. RESULTS: Fifty-one cleft patients diagnosed with Robin sequence were included in this study. Outcomes were compared to those of 128 nonsyndromic cleft palate-only patients.Patients with Robin sequence were shown to present with a significantly higher rate of cleft speech characteristics in comparison to the reference cohort (p = 0.001). Furthermore, it was shown that Robin sequence is associated with a significantly higher rate of secondary speech surgery for velopharyngeal dysfunction before the age of 5 (p = 0.016). Robin sequence patients with a nasopharyngeal airway presented with a higher rate of cleft speech characteristics compared to Robin sequence patients managed with positioning only. CONCLUSION: Cleft patients with Robin sequence are more likely to need further surgery to correct velopharyngeal dysfunction before the age of 5 and are more prone to present with cleft speech characteristics at the age of 5. CLINICAL QUESTION/LEVEL OF EVIDENCE: Risk, II.
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Fissura Palatina/complicações , Síndrome de Pierre Robin/complicações , Procedimentos de Cirurgia Plástica/métodos , Distúrbios da Fala/diagnóstico , Insuficiência Velofaríngea/diagnóstico , Estudos de Casos e Controles , Criança , Pré-Escolar , Fissura Palatina/cirurgia , Feminino , Humanos , Masculino , Síndrome de Pierre Robin/cirurgia , Índice de Gravidade de Doença , Fala/fisiologia , Distúrbios da Fala/etiologia , Distúrbios da Fala/fisiopatologia , Distúrbios da Fala/cirurgia , Resultado do Tratamento , Insuficiência Velofaríngea/etiologia , Insuficiência Velofaríngea/fisiopatologia , Insuficiência Velofaríngea/cirurgiaRESUMO
OBJECTIVE: To implement Standard Opioid Prescribing Schedules (SOPS) based on opioid use following urologic surgeries and to evaluate how evidence-based prescribing schedules affect opioid use and patient reported outcomes. METHODS: Patients who underwent urologic surgeries within 6 procedure subtypes at UNC Health during the 2 study time periods ("pre-SOPS": 7/2017-1/2018, "post-SOPS": 7/2018-1/2019) were invited to complete a survey analyzing postoperative opioid usage, storage and disposal, and patient reported outcomes (including pain interference using a validated questionnaire). A pharmacy database provided medication prescribing data and patient demographics. During the pre-SOPS time period, baseline outcomes were measured. Following the pre-SOPS period, usage amounts were analyzed and Standard Opioid Prescribing Schedules were developed to guide prescriptions during the post-SOPS period. Descriptive summary statistics and appropriate t test or r2 were calculated. RESULTS: A total of 438 patients within 6 procedure types completed the survey (pre-SOPS: 282 patients, post-SOPS: 156 patients). Pre-SOPS, patients were prescribed significantly more 5-mg oxycodone tablets than used (20.9 vs 7.8, P <.001). Post-SOPS, compared to pre-SOPS amounts, patients were prescribed significantly fewer tablets (12.7 vs 20.9, P <.001) and used fewer tablets (5.3 vs 7.8, P = .003). No difference was observed in pain interference (average t-score (standard deviation): 54.33 (10.9) pre-SOPS vs 55.89 (9.1) post-SOPS, P = .125) or patient satisfaction (95% pre-SOPS vs 94% post-SOPS). CONCLUSION: Adherence to data-driven postoperative opioid prescribing schedules reduce opioid prescriptions and use without compromising pain interference or patient satisfaction. These results have important implications for urologists' ability to decrease opioid prescriptions and fight the opioid epidemic.
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Analgésicos Opioides/administração & dosagem , Esquema de Medicação , Prescrições de Medicamentos/normas , Dor Pós-Operatória/tratamento farmacológico , Medidas de Resultados Relatados pelo Paciente , Procedimentos Cirúrgicos Urológicos , Armazenamento de Medicamentos/estatística & dados numéricos , Prática Clínica Baseada em Evidências , Fidelidade a Diretrizes , Humanos , Oxicodona/administração & dosagem , Satisfação do Paciente , Inquéritos e Questionários/estatística & dados numéricos , Procedimentos Cirúrgicos Urológicos/estatística & dados numéricosRESUMO
This study evaluates if the Kiddie Children and Teachers on the Move physical activity (PA) program improves the proportion of days meeting the Institute of Medicine (IOM) PA guideline, and whether meeting the guideline is correlated with improvement in school readiness. Thirteen Head Start-affiliated pre-kindergarten classrooms participated in this study. Minutes per hour of moderate-to-vigorous physical activity (MVPA) and proportion of days meeting the IOM PA guideline were examined across three types of intervention days: days during a non-intervention period, non-program days during the intervention period, and program days during the intervention period. Children displayed increasingly more MVPA and a greater proportion of days meeting the IOM guideline from non-intervention days to non-program days, and from non-program days to program days. Proportion of days meeting the guideline significantly predicted improvement in school readiness in five of six domains. Examination of program fidelity indicated the program was run with high fidelity.
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Exercício Físico , Instituições Acadêmicas , Criança , Pré-Escolar , Escolaridade , Humanos , Avaliação de Programas e Projetos de Saúde , Estados UnidosRESUMO
BACKGROUND: Syphilis has seen an increased incidence in recent years and can have serious and irreversible consequences if left un-diagnosed and untreated. This case report describes a presentation of syphilis and acute kidney injury - a scenario sparsely described in existing literature. CASE PRESENTATION: This 43-year old Man who has Sex with Men (MSM) presented to the emergency department with a 3-week history of vomiting and headaches, progressing to include pyrexia. These symptoms started following his return from a 2-week cruise in Central America throughout which he had been well. He had a background of well-controlled human immunodeficiency virus (HIV). On admission he had an Acute Kidney Injury (AKI) stage 3, without hydronephrosis, presumed to be pre-renal. Leptospirosis, the main differential, was negative serologically. 'Pyrexia of unknown origin' testing was performed, and cefuroxime commenced. Later in the admission, syphilis testing indicated an acute infection and he completed a full treatment course of benzylpenicillin. This, alongside intravenous fluids, resulted in symptom and renal resolution in 9 days and restoration of renal function. CONCLUSIONS: Renal complications in syphilis are rare, furthermore the majority of those documented occur in latent syphilis and are irreversible. There are limited numbers of other documented cases of AKI in acute syphilis, which like the gentleman in this case were reversible and did not lead to permanent kidney damage. This case adds to the knowledge base of AKI in initial presentation of syphilis. It also demonstrates not only the importance of taking a sexual history in patients with new infective symptoms but that testing for syphilis in at-risk groups regardless of history should be performed given its rising incidence. These considerations by physicians can lead to prompt diagnosis and management of syphilis and improve patient care and long-term outcomes.
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Injúria Renal Aguda/etiologia , Sífilis/complicações , Injúria Renal Aguda/microbiologia , Adulto , Antibacterianos/uso terapêutico , Febre/etiologia , Infecções por HIV/tratamento farmacológico , Homossexualidade Masculina , Humanos , Masculino , Penicilina G/uso terapêutico , Comportamento Sexual , Minorias Sexuais e de Gênero , Sífilis/diagnóstico , Sífilis/tratamento farmacológico , Sorodiagnóstico da Sífilis , ViagemRESUMO
BACKGROUND: Preschool ADHD symptoms have predictive utility for later presence of ADHD diagnoses (Harvey, Youngwirth, Thakar, & Errazuriz, 2009, Journal of Consulting and Clinical Psychology, 77, 349; Lahey et al., 2004, American Journal of Psychiatry, 161(11), 2014), yet some level of inattention, hyperactivity, and impulsivity are present even in typically developing preschoolers. Physical activity (PA) is known to have a broad spectrum of positive effects on the brain in school-age typically developing children (Centers for Disease Control and Prevention, 2010, The association between school based physical activity, including physical education, and academic performance. Atlanta, GA: U.S. Department of Health and Human Services), including functions impaired by ADHD (Halperin, Berwid, & O'Neill, 2014, Child and Adolescent Psychiatric Clinics of North America, 23, 899), yet links between PA and ADHD levels and impairments have rarely been studied in either typically developing or at-risk preschool children. Importantly, impaired processing speed (PS), though not a symptom of ADHD, is a robust neuropsychological correlate (Willcutt & Bidwell, 2011, Treating attention deficit hyperactivity disorder: Assessment and intervention in developmental context. Kingston, NJ: Civic Research Institute) that may indicate additional risk for ADHD. Hence, we examined whether baseline PS moderates the association between preschoolers' PA, specifically moderate-to-vigorous PA (MVPA), and changes in ADHD levels and related behaviors. METHOD: Eighty-five preschoolers (49.4% female; Mage = 4.14, SDage = .64) were drawn from a larger study of the effects of the Kiddie Children and Teachers (CATs) on the Move PA program on school readiness. The sample was largely Head Start eligible (68.2%) and ethnically diverse. Hierarchical regressions were utilized to examine links between MVPA, averaged over a school year, and changes in inattention (IA), hyperactivity/impulsivity (HI), oppositional behaviors, moodiness, and peer functioning, and whether these associations varied based on baseline PS. RESULTS: Results indicated that for IA, HI, and peer functioning, higher amounts of MVPA were associated with greater adaptive change for those with lower (but not higher) levels of PS. CONCLUSIONS: Preschool MVPA may be a viable method of reducing ADHD levels and impairments for those with lower PS.
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Transtorno do Deficit de Atenção com Hiperatividade/psicologia , Transtorno do Deficit de Atenção com Hiperatividade/terapia , Cognição , Exercício Físico , Pré-Escolar , Feminino , Humanos , Comportamento Impulsivo , Masculino , Instituições AcadêmicasRESUMO
BACKGROUND: Multiple Sclerosis (MS) is a chronic neurodegenerative disease that results in deficits in physical and cognitive functioning. Research supports the use of physical activity (PA) to aid in MS symptom management and slow disease progression, however individuals diagnosed with MS are generally physically inactive. Social support has been shown to increase PA behavior in group exercise settings. Events such as Bike MS, a charity bicycle ride where individuals raise money for MS, could increase motivation for participation and therefore may be an ideal setting to introduce PA to individuals diagnosed with MS. OBJECTIVE: /Hypothesis: The objective of the current research was to explore motives for participation in a Bike MS event in individuals diagnosed with MS and their family members, and examine if their Bike MS participation has translated to long-term PA behavior change and positive quality of life outcomes. METHODS: A descriptive qualitative approach using semi-structured focus group, individual, and phone interviews, combined with observational field notes, was used to explore the experiences of seven individuals diagnosed with MS and four family members from two regional self-help groups who all actively participated in a Bike MS event. RESULTS: Participants reported important social bonds, raising awareness for the cause, fundraising, long-term physical benefits, and overall increased quality of life as motives for participation. All participants reported long-term PA participation as a result of Bike MS participation. CONCLUSION: Results support using Bike MS to increase long-term PA participation in individuals with MS, resulting in positive quality of life outcomes.
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Ciclismo/psicologia , Pessoas com Deficiência/psicologia , Exercício Físico/psicologia , Motivação , Esclerose Múltipla/psicologia , Apoio Social , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Doenças Neurodegenerativas/psicologia , Qualidade de Vida , Comportamento SedentárioRESUMO
It is feasible and acceptable to deliver a home-based lower limb-specific resistance training (LLSRT) programme to patients with COPD. Individual patient improvements in walking distance and breathlessness severity were observed post-LLSRT intervention. http://bit.ly/30xYpWI.
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Antibody-drug conjugates (ADCs) are a growing class of therapeutics that harness the specificity of antibodies and the cell-killing potency of small-molecule drugs. Beyond cytotoxics, there are few examples of the application of an ADC approach to difficult drug discovery targets. Here, we present the initial development of a non-internalising ADC, with a view to selectively inhibiting an extracellular protein. Employing the wellinvestigated matrix metalloproteinase-9 (MMP-9) as our model, we adapted a broad-spectrum, nonselective MMP inhibitor for conjugation and linked this to a MMP-9-targeting antibody. The resulting ADC fully inhibits MMP-9, and ELISA results suggest antibody targeting can direct a nonselective inhibitor.
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Anticorpos Monoclonais Murinos/imunologia , Ácidos Hidroxâmicos/química , Imunoconjugados/imunologia , Metaloproteinase 9 da Matriz/imunologia , Inibidores de Proteases/química , Pirazinas/química , Animais , Anticorpos Monoclonais Murinos/química , Anticorpos Monoclonais Murinos/metabolismo , Linhagem Celular , Ensaios Enzimáticos , Fluorometria , Humanos , Ácidos Hidroxâmicos/metabolismo , Imunoconjugados/química , Imunoconjugados/metabolismo , Metaloproteinase 9 da Matriz/metabolismo , Camundongos , Inibidores de Proteases/metabolismo , Ligação Proteica , Pirazinas/metabolismo , Sulfonamidas/química , Sulfonamidas/metabolismoRESUMO
The rise of managerialism within healthcare systems has been noted globally. This paper uses the findings of a scoping study to investigate the management of poor performance among nurses and midwives in the United Kingdom within this context. The management of poor performance among clinicians in the NHS has been seen as a significant policy problem. There has been a profound shift in the distribution of power between professional and managerial groups in many health systems globally. We examined literature published between 2000 and 10 to explore aspects of poor performance and its management. We used Web of Science, CINAHL, MEDLINE, British Nursing Index, HMIC, Cochrane Library and PubMed. Empirical data are limited but indicate that nurses and midwives are the clinical groups most likely to be suspended and that poor performance is often represented as an individual deficit. A focus on the individual as a source of trouble can serve as a distraction from more complex systematic problems.
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Disciplina no Trabalho , Avaliação de Desempenho Profissional , Enfermeiras e Enfermeiros , Humanos , Medicina Estatal , Reino UnidoRESUMO
Foot-and-mouth disease virus (FMDV) is the type species of the Aphthovirus genus of the Picornaviridae: Infection by picornaviruses results in a major rearrangement of the host cell membranes to create vesicular structures where virus genome replication takes place. In this report, using fluorescence and electron microscopy, membrane rearrangements in the cytoplasm of FMDV-infected BHK-38 cells are documented. At 1.5-2.0 h post-infection, free ribosomes, fragmented rough endoplasmic reticulum, Golgi and smooth membrane-bound vesicles accumulated on one side of the nucleus. Newly synthesized viral RNA was localized to this region of the cell. The changes seen in FMDV-infected cells distinguish this virus from other members of the Picornaviridae, such as poliovirus. Firstly, the collapse of cellular organelles to one side of the cell has not previously been observed for other picornaviruses. Secondly, the membrane vesicles, induced by FMDV, appear distinct from those induced by other picornaviruses such as poliovirus and echovirus 11 since they are relatively few in number and do not aggregate into densely packed clusters. Additionally, the proportion of vesicles with double membranes is considerably lower in FMDV-infected cells. These differences did not result from the use of BHK-38 cells in this study, as infection of these cells by another picornavirus, bovine enterovirus (a close relative of poliovirus), resulted in morphological changes similar to those reported for poliovirus-infected cells. With conventional fixation, FMDV particles were not seen; however, following high-pressure freezing and freeze-substitution, many clusters of virus-like particles were seen.