Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 93
Filtrar
1.
J Immunother Cancer ; 12(7)2024 Jul 04.
Artigo em Inglês | MEDLINE | ID: mdl-38964788

RESUMO

BACKGROUND: OX40 has been widely studied as a target for immunotherapy with agonist antibodies taken forward into clinical trials for cancer where they are yet to show substantial efficacy. Here, we investigated potential mechanisms of action of anti-mouse (m) OX40 and anti-human (h) OX40 antibodies, including a clinically relevant monoclonal antibody (mAb) (GSK3174998) and evaluated how isotype can alter those mechanisms with the aim to develop improved antibodies for use in rational combination treatments for cancer. METHODS: Anti-mOX40 and anti-hOX40 mAbs were evaluated in a number of in vivo models, including an OT-I adoptive transfer immunization model in hOX40 knock-in (KI) mice and syngeneic tumor models. The impact of FcγR engagement was evaluated in hOX40 KI mice deficient for Fc gamma receptors (FcγR). Additionally, combination studies using anti-mouse programmed cell death protein-1 (mPD-1) were assessed. In vitro experiments using peripheral blood mononuclear cells (PBMCs) examining possible anti-hOX40 mAb mechanisms of action were also performed. RESULTS: Isotype variants of the clinically relevant mAb GSK3174998 showed immunomodulatory effects that differed in mechanism; mIgG1 mediated direct T-cell agonism while mIgG2a acted indirectly, likely through depletion of regulatory T cells (Tregs) via activating FcγRs. In both the OT-I and EG.7-OVA models, hIgG1 was the most effective human isotype, capable of acting both directly and through Treg depletion. The anti-hOX40 hIgG1 synergized with anti-mPD-1 to improve therapeutic outcomes in the EG.7-OVA model. Finally, in vitro assays with human peripheral blood mononuclear cells (hPBMCs), anti-hOX40 hIgG1 also showed the potential for T-cell stimulation and Treg depletion. CONCLUSIONS: These findings underline the importance of understanding the role of isotype in the mechanism of action of therapeutic mAbs. As an hIgG1, the anti-hOX40 mAb can elicit multiple mechanisms of action that could aid or hinder therapeutic outcomes, dependent on the microenvironment. This should be considered when designing potential combinatorial partners and their FcγR requirements to achieve maximal benefit and improvement of patient outcomes.


Assuntos
Receptores OX40 , Animais , Humanos , Camundongos , Receptores OX40/agonistas , Anticorpos Monoclonais/farmacologia , Anticorpos Monoclonais/uso terapêutico , Neoplasias/tratamento farmacológico , Neoplasias/imunologia , Linhagem Celular Tumoral , Linfócitos T Reguladores/imunologia , Linfócitos T Reguladores/efeitos dos fármacos , Modelos Animais de Doenças
2.
EBioMedicine ; 105: 105204, 2024 Jun 19.
Artigo em Inglês | MEDLINE | ID: mdl-38901146

RESUMO

The emergence of next-generation sequencing technologies and computational advances have expanded our understanding of gene expression regulation (i.e., the transcriptome). This has also led to an increased interest in using transcriptomic biomarkers to improve disease diagnosis and stratification, to assess prognosis and predict the response to treatment. Significant progress in identifying transcriptomic signatures for various clinical needs has been made, with large discovery studies accounting for challenges such as patient variability, unwanted batch effects, and data complexities; however, obstacles related to the technical aspects of cross-platform implementation still hinder the successful integration of transcriptomic technologies into standard diagnostic workflows. In this article, we discuss the challenges associated with integrating transcriptomic signatures derived using high-throughput technologies (such as RNA-sequencing) into clinical diagnostic tools using nucleic acid amplification (NAA) techniques. The novelty of the proposed approach lies in our aim to embed constraints related to cross-platform implementation in the process of signature discovery. These constraints could include technical limitations of amplification platform and chemistry, the maximal number of targets imposed by the chosen multiplexing strategy, and the genomic context of identified RNA biomarkers. Finally, we propose to build a computational framework that would integrate these constraints in combination with existing statistical and machine learning models used for signature identification. We envision that this could accelerate the integration of RNA signatures discovered by high-throughput technologies into NAA-based approaches suitable for clinical applications.

3.
J Psychoactive Drugs ; : 1-10, 2024 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-38715376

RESUMO

Recent studies suggest psychedelic use may be associated with changes in a variety of beliefs or belief-like states, including increased 1) mind perception, 2) non-naturalistic beliefs, and 3) Atheist-Believer status (e.g. believer, agnostic, or nonbeliever). We conducted a prospective longitudinal study among participants (N = 657) who planned to have a psilocybin experience outside a laboratory setting. We asked participants about their beliefs concerning mind perception of various entities, specific metaphysical positions, and Atheist-Believer status both before (and after their experience. Replicating previous findings, we observed increases in mind perception across a variety of living and non-living targets (e.g. plants, rocks). However, we found little to no change in metaphysical beliefs (e.g. dualism) or Atheist-Believer status. Taken together, these findings contrast with those from cross-sectional studies that psilocybin experiences result in changes to Atheist-Believer status and non-naturalistic beliefs but support the relevance of mind perception and mentalization.

4.
BMC Neurol ; 24(1): 141, 2024 Apr 26.
Artigo em Inglês | MEDLINE | ID: mdl-38671370

RESUMO

BACKGROUND: For approximately 30% of people with epilepsy, seizures are not well-controlled by anti-seizure medication (ASM). This condition, called treatment resistant epilepsy (TRE), is associated with increased morbidity and mortality, and substantially impacts the quality of life of both the individual and their family. Non-responsiveness to ASMs leads many people with TRE to seek alternative therapies, such as cannabinoid-based medication, particularly cannabidiol (CBD), with or without medical or professional advice. This is due in part to widespread reporting in the media about the benefits of CBD for seizures in some forms of epilepsy. METHODS: Adults with TRE, opting to add CBD to their existing treatment regime, completed this prospective, observational, longitudinal, quasi-experimental, time-series study. We hypothesized that adjunctive CBD use would positively impact participants' quality of life and psychological well-being in comparison to a baseline period without CBD use. Participants were followed for a period of approximately six months - for approximately one month of baseline prior to the initiation of CBD use and approximately five months after the initiation of CBD use. Participants provided urine samples and completed behavioral questionnaires that assessed quality of life, anxiety/depression, and adverse events during baseline and at two times during CBD use. RESULTS: Complete case analyses (n = 10) showed a statistically significant improvement in quality of life, a statistically significant decrease in anxiety symptoms, and a statistically significant decrease in the experience of adverse events over time (p < 0.05). Improvements noted in the experience of depression symptoms did not reach statistical significance. Urinalysis revealed the majority of participants had no CBD/metabolites in their system at the beginning of the study, and confirmed the presence of CBD/metabolites in participants' urine after CBD was added to their treatment regime. Analysis of missing data using multiple imputation supported the findings of the complete case analysis. INTERPRETATION: For a small group of individuals with TRE of varying etiologies, adjunctive use of artisanal CBD was associated with improvements in the behavioral and psychological symptoms of TRE, as well as improved medication tolerability.


Assuntos
Anticonvulsivantes , Canabidiol , Epilepsia Resistente a Medicamentos , Qualidade de Vida , Humanos , Canabidiol/uso terapêutico , Canabidiol/administração & dosagem , Masculino , Feminino , Adulto , Epilepsia Resistente a Medicamentos/tratamento farmacológico , Epilepsia Resistente a Medicamentos/psicologia , Anticonvulsivantes/uso terapêutico , Pessoa de Meia-Idade , Qualidade de Vida/psicologia , Estudos Longitudinais , Ansiedade/tratamento farmacológico , Ansiedade/psicologia , Estudos Prospectivos , Adulto Jovem , Resultado do Tratamento
5.
Front Psychiatry ; 15: 1279887, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38666090

RESUMO

Background: Refugees and immigrants can experience complex stressors from the process of immigration that can have lasting and severe long-term mental health consequences. Experiences after ayahuasca ingestion are shown to produce positive effects on psychological wellbeing and mental health, including anecdotal reports of improved symptoms of trauma and related disorders. However, data on the longitudinal health impact of naturalistic ayahuasca use in Middle Eastern and North African (MENA) immigrant and refugee populations is limited. Aims: The current longitudinal online survey study was conducted to gather prospective data on ceremonial ayahuasca use in a group (N = 15) of primarily female MENA immigrants and refugees and to provide further insight into the patterns and outcomes surrounding that use. The study sought to assess self-reported changes in physical and mental health, well-being, and psychological functioning, examine relationships between aspects of individual mindset (e.g., psychedelic preparedness) prior to ayahuasca use and observed outcomes during (e.g., subjective drug effects) and afterwards (i.e., persisting effects), characterize risks and negative experiences, and describe trauma exposure and personal history. Results/Outcomes: Our findings revealed ceremonial use of ayahuasca is associated with significant improvements in mental health, well-being, and psychological functioning, including reductions in depression, anxiety, and shame, and increases in cognitive reappraisal and self-compassion. Most participants reported no lasting adverse effects and experienced notable positive behavioral changes persisting months after ingestion. Conclusion/Interpretation: While preliminary, results suggest naturalistic ayahuasca use might hold therapeutic potential for MENA populations exposed to trauma prior to and during the process of migration.

6.
J Am Assoc Nurse Pract ; 36(6): 353-357, 2024 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-38512119

RESUMO

BACKGROUND: Nurse practitioners and physician associates are an essential part of the multidisciplinary cancer care team with expanding and evolving roles within cancer specialties. LOCAL PROBLEM: As these clinicians flourish, a parallel need for leadership rises to optimize scope of practice, mentor, and retain this crucial workforce. The purpose of this quality improvement project was to development a nurse practitioner and physician associate leadership structure within an academic cancer center. METHODS: Development of this nurse practitioner and physician associate leadership structure was guided by transformational leadership theory. In collaboration with nursing, business, and physician leadership, a quad structure was supported. INTERVENTIONS: Implementation of a leadership structure included the establishment of eight team leaders and two managers. These leaders identified multiple opportunities for improvement including improved communications, offload of nonbillable work, development of incentive programs, provision of equipment, specialty practice alignment, hematology/oncology fellowship, and professional development. RESULTS: Overall, a nurse practitioner and physician associate leadership structure allowed for representation across the cancer center. Such inclusion supported multiple quality improvement projects developed in partnership with nursing, business, and physician leaders. Cumulatively, these interventions yielded efficient workflows and expansion of services. Consistent with reported evidence, these efforts contributed to nurse practitioner and physician associate retention as well as improved job satisfaction. CONCLUSIONS: Advanced practice leadership is essential to recruiting, developing, supporting, and retaining nurse practitioner and physician assistant colleagues in cancer care.


Assuntos
Liderança , Profissionais de Enfermagem , Profissionais de Enfermagem/tendências , Humanos , Centros Médicos Acadêmicos/organização & administração , Assistentes Médicos , Melhoria de Qualidade , Institutos de Câncer/organização & administração
7.
J Am Assoc Nurse Pract ; 36(4): 221-232, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38320261

RESUMO

BACKGROUND: Greater attention to the transitional period for advanced practice nurses has urged health care organizations and employers to implement fellowships. Currently, the theoretical process of nurse practitioner (NP) role transition from the essential perspectives of NP fellows does not exist. PURPOSE: The purpose of this study was to construct a middle-range theory grounded in reality of an NP fellowship environment that explains how NPs transition to their new role. METHODOLOGY: Following Charmaz's constructivist methodology, 11 NPs who transitioned to practice in a fellowship were interviewed. RESULTS: "Navigating the Pathway to Advanced Practice: A Grounded Theory of Nurse Practitioner Role Transition in a Fellowship" emerged from the data and is composed of through five phases: (1) mapping a path, (2) stepping onto the trailhead, (3) navigating the trailway, (4) gaining traction, and (5) summiting. CONCLUSIONS: The resulting middle-range theory is the first in the nursing literature that conceptualizes meaning about NP role transition in a fellowship. This process occurs in the contextual factor of a realm of support that includes growth, value, lifelong learning, and readiness. Throughout this process, NPs build competence and confidence that advances them to summit, or transition, to their NP role at the completion of an NP fellowship. IMPLICATIONS: This discovery will fill the research gap pertaining to best practice interventions in support of NPs during role transition in fellowships. Understanding how NPs transition to their new advanced practice roles may inform organizations on how to structure fellowships that support learning, encourage confidence, and enhance competence.


Assuntos
Prática Avançada de Enfermagem , Profissionais de Enfermagem , Humanos , Bolsas de Estudo , Teoria Fundamentada , Papel do Profissional de Enfermagem
8.
Pediatr Infect Dis J ; 43(5): 444-453, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38359342

RESUMO

BACKGROUND: Multisystem inflammatory syndrome in children (MIS-C) is a rare but serious hyperinflammatory complication following infection with severe acute respiratory syndrome coronavirus 2. The mechanisms underpinning the pathophysiology of MIS-C are poorly understood. Moreover, clinically distinguishing MIS-C from other childhood infectious and inflammatory conditions, such as Kawasaki disease or severe bacterial and viral infections, is challenging due to overlapping clinical and laboratory features. We aimed to determine a set of plasma protein biomarkers that could discriminate MIS-C from those other diseases. METHODS: Seven candidate protein biomarkers for MIS-C were selected based on literature and from whole blood RNA sequencing data from patients with MIS-C and other diseases. Plasma concentrations of ARG1, CCL20, CD163, CORIN, CXCL9, PCSK9 and ADAMTS2 were quantified in MIS-C (n = 22), Kawasaki disease (n = 23), definite bacterial (n = 28) and viral (n = 27) disease and healthy controls (n = 8). Logistic regression models were used to determine the discriminatory ability of individual proteins and protein combinations to identify MIS-C and association with severity of illness. RESULTS: Plasma levels of CD163, CXCL9 and PCSK9 were significantly elevated in MIS-C with a combined area under the receiver operating characteristic curve of 85.7% (95% confidence interval: 76.6%-94.8%) for discriminating MIS-C from other childhood diseases. Lower ARG1 and CORIN plasma levels were significantly associated with severe MIS-C cases requiring inotropes, pediatric intensive care unit admission or with shock. CONCLUSION: Our findings demonstrate the feasibility of a host protein biomarker signature for MIS-C and may provide new insight into its pathophysiology.


Assuntos
COVID-19/complicações , Síndrome de Linfonodos Mucocutâneos , Pró-Proteína Convertase 9 , Humanos , Criança , Síndrome de Linfonodos Mucocutâneos/diagnóstico , Proteínas Sanguíneas , Síndrome de Resposta Inflamatória Sistêmica/diagnóstico , Biomarcadores
9.
J Infect ; 87(6): 538-550, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37863321

RESUMO

OBJECTIVES: The amount of SARS-CoV-2 detected in the upper respiratory tract (URT viral load) is a key driver of transmission of infection. Current evidence suggests that mechanisms constraining URT viral load are different from those controlling lower respiratory tract viral load and disease severity. Understanding such mechanisms may help to develop treatments and vaccine strategies to reduce transmission. Combining mathematical modelling of URT viral load dynamics with transcriptome analyses we aimed to identify mechanisms controlling URT viral load. METHODS: COVID-19 patients were recruited in Spain during the first wave of the pandemic. RNA sequencing of peripheral blood and targeted NanoString nCounter transcriptome analysis of nasal epithelium were performed and gene expression analysed in relation to paired URT viral load samples collected within 15 days of symptom onset. Proportions of major immune cells in blood were estimated from transcriptional data using computational differential estimation. Weighted correlation network analysis (adjusted for cell proportions) and fixed transcriptional repertoire analysis were used to identify associations with URT viral load, quantified as standard deviations (z-scores) from an expected trajectory over time. RESULTS: Eighty-two subjects (50% female, median age 54 years (range 3-73)) with COVID-19 were recruited. Paired URT viral load samples were available for 16 blood transcriptome samples, and 17 respiratory epithelial transcriptome samples. Natural Killer (NK) cells were the only blood cell type significantly correlated with URT viral load z-scores (r = -0.62, P = 0.010). Twenty-four blood gene expression modules were significantly correlated with URT viral load z-score, the most significant being a module of genes connected around IFNA14 (Interferon Alpha-14) expression (r = -0.60, P = 1e-10). In fixed repertoire analysis, prostanoid-related gene expression was significantly associated with higher viral load. In nasal epithelium, only GNLY (granulysin) gene expression showed significant negative correlation with viral load. CONCLUSIONS: Correlations between the transcriptional host response and inter-individual variations in SARS-CoV-2 URT viral load, revealed many molecular mechanisms plausibly favouring or constraining viral replication. Existing evidence corroborates many of these mechanisms, including likely roles for NK cells, granulysin, prostanoids and interferon alpha-14. Inhibition of prostanoid production and administration of interferon alpha-14 may be attractive transmission-blocking interventions.


Assuntos
COVID-19 , SARS-CoV-2 , Humanos , Feminino , Pré-Escolar , Criança , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Masculino , SARS-CoV-2/genética , Carga Viral , Transcriptoma , Mucosa Nasal , Prostaglandinas , Interferon-alfa
10.
Lancet Digit Health ; 5(11): e774-e785, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37890901

RESUMO

BACKGROUND: Differentiating between self-resolving viral infections and bacterial infections in children who are febrile is a common challenge, causing difficulties in identifying which individuals require antibiotics. Studying the host response to infection can provide useful insights and can lead to the identification of biomarkers of infection with diagnostic potential. This study aimed to identify host protein biomarkers for future development into an accurate, rapid point-of-care test that can distinguish between bacterial and viral infections, by recruiting children presenting to health-care settings with fever or a history of fever in the previous 72 h. METHODS: In this multi-cohort machine learning study, patient data were taken from EUCLIDS, the Swiss Pediatric Sepsis study, the GENDRES study, and the PERFORM study, which were all based in Europe. We generated three high-dimensional proteomic datasets (SomaScan and two via liquid chromatography tandem mass spectrometry, referred to as MS-A and MS-B) using targeted and untargeted platforms (SomaScan and liquid chromatography mass spectrometry). Protein biomarkers were then shortlisted using differential abundance analysis, feature selection using forward selection-partial least squares (FS-PLS; 100 iterations), along with a literature search. Identified proteins were tested with Luminex and ELISA and iterative FS-PLS was done again (25 iterations) on the Luminex results alone, and the Luminex and ELISA results together. A sparse protein signature for distinguishing between bacterial and viral infections was identified from the selected proteins. The performance of this signature was finally tested using Luminex assays and by calculating disease risk scores. FINDINGS: 376 children provided serum or plasma samples for use in the discovery of protein biomarkers. 79 serum samples were collected for the generation of the SomaScan dataset, 147 plasma samples for the MS-A dataset, and 150 plasma samples for the MS-B dataset. Differential abundance analysis, and the first round of feature selection using FS-PLS identified 35 protein biomarker candidates, of which 13 had commercial ELISA or Luminex tests available. 16 proteins with ELISA or Luminex tests available were identified by literature review. Further evaluation via Luminex and ELISA and the second round of feature selection using FS-PLS revealed a six-protein signature: three of the included proteins are elevated in bacterial infections (SELE, NGAL, and IFN-γ), and three are elevated in viral infections (IL18, NCAM1, and LG3BP). Performance testing of the signature using Luminex assays revealed area under the receiver operating characteristic curve values between 89·4% and 93·6%. INTERPRETATION: This study has led to the identification of a protein signature that could be ultimately developed into a blood-based point-of-care diagnostic test for rapidly diagnosing bacterial and viral infections in febrile children. Such a test has the potential to greatly improve care of children who are febrile, ensuring that the correct individuals receive antibiotics. FUNDING: European Union's Horizon 2020 research and innovation programme, the European Union's Seventh Framework Programme (EUCLIDS), Imperial Biomedical Research Centre of the National Institute for Health Research, the Wellcome Trust and Medical Research Foundation, Instituto de Salud Carlos III, Consorcio Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, Grupos de Refeencia Competitiva, Swiss State Secretariat for Education, Research and Innovation.


Assuntos
Infecções Bacterianas , Viroses , Humanos , Criança , Proteômica , Infecções Bacterianas/diagnóstico , Biomarcadores/metabolismo , Viroses/diagnóstico , Antibacterianos
11.
Front Psychiatry ; 14: 1199642, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37795509

RESUMO

Introduction: The classic psychedelic psilocybin, found in some mushroom species, has received renewed interest in clinical research, showing potential mental health benefits in preliminary trials. Naturalistic use of psilocybin outside of research settings has increased in recent years, though data on the public health impact of such use remain limited. Methods: This prospective, longitudinal study comprised six sequential automated web-based surveys that collected data from adults planning to take psilocybin outside clinical research: at time of consent, 2 weeks before, the day before, 1-3 days after, 2-4 weeks after, and 2-3 months after psilocybin use. Results: A sample of 2,833 respondents completed all baseline assessments approximately 2 weeks before psilocybin use, 1,182 completed the 2-4 week post-use survey, and 657 completed the final follow-up survey 2-3 months after psilocybin use. Participants were primarily college-educated White men residing in the United States with a prior history of psychedelic use; mean age = 40 years. Participants primarily used dried psilocybin mushrooms (mean dose = 3.1 grams) for "self-exploration" purposes. Prospective longitudinal data collected before and after a planned psilocybin experience on average showed persisting reductions in anxiety, depression, and alcohol misuse, increased cognitive flexibility, emotion regulation, spiritual wellbeing, and extraversion, and reduced neuroticism and burnout after psilocybin use. However, a minority of participants (11% at 2-4 weeks and 7% at 2-3 months) reported persisting negative effects after psilocybin use (e.g., mood fluctuations, depressive symptoms). Discussion: Results from this study, the largest prospective survey of naturalistic psilocybin use to date, support the potential for psilocybin to produce lasting improvements in mental health symptoms and general wellbeing.

12.
Clin J Oncol Nurs ; 27(1): 13-16, 2023 01 25.
Artigo em Inglês | MEDLINE | ID: mdl-37677823

RESUMO

As oncology nurse practitioner (NP) fellowships expand across the United States, institutions note improved transitions to specialty practice and better patient outcomes. These fellowships may further serve as a strategy to a.


Assuntos
Enfermeiros Clínicos , Profissionais de Enfermagem , Humanos , Bolsas de Estudo , Oncologia
13.
Lancet Child Adolesc Health ; 7(10): 697-707, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37598693

RESUMO

BACKGROUND: Although Kawasaki disease is commonly regarded as a single disease entity, variability in clinical manifestations and disease outcome has been recognised. We aimed to use a data-driven approach to identify clinical subgroups. METHODS: We analysed clinical data from patients with Kawasaki disease diagnosed at Rady Children's Hospital (San Diego, CA, USA) between Jan 1, 2002, and June 30, 2022. Patients were grouped by hierarchical clustering on principal components with k-means parcellation based on 14 variables, including age at onset, ten laboratory test results, day of illness at the first intravenous immunoglobulin infusion, and normalised echocardiographic measures of coronary artery diameters at diagnosis. We also analysed the seasonality and Kawasaki disease incidence from 2002 to 2019 by subgroup. To explore the biological underpinnings of identified subgroups, we did differential abundance analysis on proteomic data of 6481 proteins from 32 patients with Kawasaki disease and 24 healthy children, using linear regression models that controlled for age and sex. FINDINGS: Among 1016 patients with complete data in the final analysis, four subgroups were identified with distinct clinical features: (1) hepatobiliary involvement with elevated alanine transaminase, gamma-glutamyl transferase, and total bilirubin levels, lowest coronary artery aneurysm but highest intravenous immunoglobulin resistance rates (n=157); (2) highest band neutrophil count and Kawasaki disease shock rate (n=231); (3) cervical lymphadenopathy with high markers of inflammation (erythrocyte sedimentation rate, C-reactive protein, white blood cell, and platelet counts) and lowest age-adjusted haemoglobin Z scores (n=315); and (4) young age at onset with highest coronary artery aneurysm but lowest intravenous immunoglobulin resistance rates (n=313). The subgroups had distinct seasonal and incidence trajectories. In addition, the subgroups shared 211 differential abundance proteins while many proteins were unique to a subgroup. INTERPRETATION: Our data-driven analysis provides insight into the heterogeneity of Kawasaki disease, and supports the existence of distinct subgroups with important implications for clinical management and research design and interpretation. FUNDING: US National Institutes of Health and the Irving and Francine Suknow Foundation.


Assuntos
Aneurisma , Síndrome de Linfonodos Mucocutâneos , Estados Unidos , Humanos , Criança , Síndrome de Linfonodos Mucocutâneos/complicações , Síndrome de Linfonodos Mucocutâneos/epidemiologia , Imunoglobulinas Intravenosas/uso terapêutico , Proteômica , Análise por Conglomerados , Aneurisma/tratamento farmacológico
14.
Pediatr Infect Dis J ; 42(7): e235-e242, 2023 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-37200500

RESUMO

BACKGROUND: Distinguishing bacterial and viral infections based on clinical symptoms in febrile children attending the emergency department (ED) is challenging. The aim of this study is to determine a novel combination of host protein biomarkers and to assess its performance in distinguishing between bacterial and viral infection in febrile children attending EDs. METHODS: A literature search was performed to identify blood protein biomarkers able to distinguish bacterial and viral infections (May 2015-May 2019). We selected 7 protein biomarkers: Procalcitonin, TNF-related apoptosis-inducing ligand (TRAIL), interleukin (IL)-4, IL-6, Interferon gamma-induced protein-10 (CXCL-10), interferon-gamma and lipocalin 2 (LCN2). These were measured in blood plasma using a bead-based immunoassay in children with a confirmed bacterial or viral infection attending EDs in the Netherlands. We used generalized linear modeling to classify bacterial and viral infections and applied a previously developed feature selection algorithm to select the optimal combination of proteins. We performed a subgroup analysis of this protein signature in patients with C-reactive protein <60 mg/L, representing a clinically challenging diagnostic group. RESULTS: In total 102 children were included (N = 67 bacterial; N = 35 viral). Individual performance of the 7 biomarkers in classifying bacterial versus viral infections ranged from 60.8%-74.5% area under the receiver operator curve (AUC). TRAIL, LCN2 and IL-6 were identified as the best 3-protein signature with an AUC of 86% (95% CI: 71.3%-100%). In 57 patients with C-reactive protein levels <60 mg/L, the 3-protein signature had an AUC of 85.1% (95% CI: 75.3%-94.9%). CONCLUSION: We demonstrate a promising novel combination of 3 host protein biomarkers; TRAIL, LCN2 and IL-6, which performs well in classifying bacterial and viral infections in febrile children in emergency care.


Assuntos
Infecções Bacterianas , Viroses , Humanos , Criança , Proteína C-Reativa/análise , Interleucina-6 , Estudos Prospectivos , Infecções Bacterianas/microbiologia , Biomarcadores , Serviço Hospitalar de Emergência , Viroses/diagnóstico , Interferon gama , Febre/microbiologia , Ligante Indutor de Apoptose Relacionado a TNF
15.
J Pediatric Infect Dis Soc ; 12(6): 322-331, 2023 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-37255317

RESUMO

BACKGROUND: To identify a diagnostic blood transcriptomic signature that distinguishes multisystem inflammatory syndrome in children (MIS-C) from Kawasaki disease (KD), bacterial infections, and viral infections. METHODS: Children presenting with MIS-C to participating hospitals in the United Kingdom and the European Union between April 2020 and April 2021 were prospectively recruited. Whole-blood RNA Sequencing was performed, contrasting the transcriptomes of children with MIS-C (n = 38) to those from children with KD (n = 136), definite bacterial (DB; n = 188) and viral infections (DV; n = 138). Genes significantly differentially expressed (SDE) between MIS-C and comparator groups were identified. Feature selection was used to identify genes that optimally distinguish MIS-C from other diseases, which were subsequently translated into RT-qPCR assays and evaluated in an independent validation set comprising MIS-C (n = 37), KD (n = 19), DB (n = 56), DV (n = 43), and COVID-19 (n = 39). RESULTS: In the discovery set, 5696 genes were SDE between MIS-C and combined comparator disease groups. Five genes were identified as potential MIS-C diagnostic biomarkers (HSPBAP1, VPS37C, TGFB1, MX2, and TRBV11-2), achieving an AUC of 96.8% (95% CI: 94.6%-98.9%) in the discovery set, and were translated into RT-qPCR assays. The RT-qPCR 5-gene signature achieved an AUC of 93.2% (95% CI: 88.3%-97.7%) in the independent validation set when distinguishing MIS-C from KD, DB, and DV. CONCLUSIONS: MIS-C can be distinguished from KD, DB, and DV groups using a 5-gene blood RNA expression signature. The small number of genes in the signature and good performance in both discovery and validation sets should enable the development of a diagnostic test for MIS-C.


Assuntos
COVID-19 , Síndrome de Linfonodos Mucocutâneos , Criança , Humanos , COVID-19/diagnóstico , COVID-19/genética , Síndrome de Resposta Inflamatória Sistêmica/diagnóstico , Síndrome de Resposta Inflamatória Sistêmica/genética , Hospitais , Síndrome de Linfonodos Mucocutâneos/diagnóstico , Síndrome de Linfonodos Mucocutâneos/genética , Teste para COVID-19
16.
J Adv Pract Oncol ; 14(1): 49-53, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36741211

RESUMO

Background: Across the United States, an incremental need for cancer care continues to emerge. Specialty nurse practitioners and physician assistant teams have helped in meeting this demand. However, there is a need for evidence-based recommendations to inform appropriate provider-patient staffing ratios that encompass complex cancer treatments and ensure optimal care. Methods: A literature review identified a gap in existing research with regard to recommended inpatient provider-patient ratios for hematology and oncology services. The conceptual framework of ICU nursing workload was utilized to ensure a comprehensive understanding of an inpatient specialty cancer provider's duties. Results: Within the unit, job, patient, and situation workload levels, there were multiple interventions implemented to streamline systems and improve workplace conditions for providers, as measured by the work-related quality of life (WRQoL) scale. Patient satisfaction scores improved an average of 4% across multiple criteria and exceeded benchmark rankings by 10.7% surrounding communication with nurses and physicians (a 6.3% increase). Discharge efficiency improved, with 6.1% more discharges occurring by 11:00 am, and length of stay was noted to be 8.8 days fewer than teaching services treating the same cancer diagnosis. Finally, additional shift pay was greatly reduced and turnover decreased by 17%. Conclusion: Application of the conceptual framework of ICU nursing workload provided a scientific assessment of specialty inpatient cancer services within one institution. Interventions resulted in improved working conditions, patient satisfaction, discharge efficiency, and reduced turnover, ultimately ensuring the provision of high-quality cancer care.

18.
J Nurses Prof Dev ; 39(3): 162-167, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-35067637

RESUMO

Fellowships prepare new graduate nurse practitioners (NPs) to become skilled providers with advanced knowledge and clinical competency to practice nursing in a specialized area. The literature lacks guidance about comprehensive approaches for the development, implementation, evaluation, and accreditation of NP fellowships. The purpose of this article was to describe recommendations and useful strategies for professional development nurse educators to deliver optimal learning and training for NPs transitioning into practice.


Assuntos
Educação de Pós-Graduação em Enfermagem , Profissionais de Enfermagem , Humanos , Bolsas de Estudo , Competência Clínica , Acreditação , Profissionais de Enfermagem/educação
19.
Med Acupunct ; 34(5): 308-315, 2022 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-36311882

RESUMO

Objective: Patient satisfaction is an increasing priority for health care facilities in ensuring reimbursement for services, high-quality access to care, and transparent communication. Cumulatively, these metrics guide patient-centered care and facilitate optimal service delivery. The purpose of this scoping review was to evaluate measures of patient satisfaction with acupuncture treatments. Materials and Methods: This scoping review was guided by the Arksey and O'Malley methodological framework. Analysis was performed based on the multidimensional hierarchical model of perceived service-quality conceptual framework. The Preferred Reporting Items for Systematic Reviews and Meta-Analysis statement was used to organize included publications and to display search processes in a flow diagram. An academic reference librarian conducted a literature search, using electronic databases that included PubMed,® Cumulative Index to Nursing and Allied Health Literature, EMBASE,® and Web of Science. Results: A total of 384 publications were initially identified and screened; 26 met the eligibility criteria and were included in the synthesis. Discrepancies in the use of patient-satisfaction measures among studies were found in only 1 study demonstrating holistic assessment. Conclusions: There is a need for consistent measurement of patient satisfaction with acupuncture treatments. Future studies may evaluate development of a satisfaction tool to measure patient satisfaction with acupuncture treatments comprehensively.

20.
Front Pharmacol ; 13: 965535, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36147312

RESUMO

Aim: To characterize perceived benefits and challenges experienced by medicinal cannabis users. Methods: An anonymous online survey collected demographics, health information, and open-ended responses from medicinal cannabis users regarding perceptions, motivations, and experience of treatment. Qualitative open-ended responses were thematically analyzed. Results: Respondents (N = 808) were predominantly White (79%), female (63%), with a mean (SD) age of 38 (20). Two hundred eighty-four (35%) respondents provided data on a dependent family member (e.g., child; 22% of total sample). Most used cannabidiol (CBD)-dominant products (58%), primarily for neurological disorders (38%) or pain (25%). Primary motivations for medicinal cannabis use were based on beliefs that traditional treatments were ineffective and/or had intolerable side effects (51%), positive scientific or media portrayals of the safety/efficacy of cannabis as a therapeutic (29%), or preference for "natural" treatments over pharmaceuticals (21%). A majority of respondents (77%) attributed positive effects to the medicinal use of cannabis/cannabinoids. These included physical symptom improvements such as reduced pain (28%), improved sleep (18%), and seizure reduction (18%), and mental health improvements including reduced anxiety (22%) and improved mood (11%). Additionally, respondents reported reduced use of other medications (e.g., opioids) (12%), and improved quality of life (14%). Problems associated with use were cited by 41% of respondents, and included unwanted side effects (16%), lack of information or medical support (16%), prohibitive costs (12%), and legal concerns (10%). Conclusion: Most participants reported benefits from cannabis use for a variety of conditions where traditional treatments were ineffective or unacceptable. Concerns regarding cannabis side effects, legality, lack of information, and cost were raised. Data indicate greater research and education on the safety and efficacy of medicinal cannabis/cannabinoid use is warranted.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...