Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 141
Filtrar
1.
RNA ; 28(4): 568-582, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35031584

RESUMO

Ribosome assembly is an intricate process, which in eukaryotes is promoted by a large machinery comprised of over 200 assembly factors (AFs) that enable the modification, folding, and processing of the ribosomal RNA (rRNA) and the binding of the 79 ribosomal proteins. While some early assembly steps occur via parallel pathways, the process overall is highly hierarchical, which allows for the integration of maturation steps with quality control processes that ensure only fully and correctly assembled subunits are released into the translating pool. How exactly this hierarchy is established, in particular given that there are many instances of RNA substrate "handover" from one highly related AF to another, remains to be determined. Here we have investigated the role of Tsr3, which installs a universally conserved modification in the P-site of the small ribosomal subunit late in assembly. Our data demonstrate that Tsr3 separates the binding of the Rio kinases, Rio2 and Rio1, with whom it shares a binding site. By binding after Rio2 dissociation, Tsr3 prevents rebinding of Rio2, promoting forward assembly. After rRNA modification is complete, Tsr3 dissociates, thereby allowing for recruitment of Rio1 into its functional site. Inactive Tsr3 blocks Rio1 function, which can be rescued using mutants that bypass the requirement for Rio1 activity. Finally, yeast strains lacking Tsr3 randomize the binding of the two kinases, leading to the release of immature ribosomes into the translating pool. These data demonstrate a role for Tsr3 and its modification activity in establishing a hierarchy for the function of the Rio kinases.


Assuntos
Alquil e Aril Transferases , Proteínas de Saccharomyces cerevisiae , Alquil e Aril Transferases/metabolismo , Proteínas Nucleares/genética , Proteínas Nucleares/metabolismo , Ligação Proteica , Proteínas Serina-Treonina Quinases , Proteínas Ribossômicas/genética , Proteínas Ribossômicas/metabolismo , Subunidades Ribossômicas Menores de Eucariotos/metabolismo , Ribossomos/genética , Ribossomos/metabolismo , Saccharomyces cerevisiae/metabolismo , Proteínas de Saccharomyces cerevisiae/genética , Proteínas de Saccharomyces cerevisiae/metabolismo
2.
J Gen Intern Med ; 2024 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-38767746

RESUMO

BACKGROUND: Severe hypoglycemia is a serious adverse drug event associated with hypoglycemia-prone medications; older patients with diabetes are particularly at high risk. Economic food insecurity (food insecurity due to financial limitations) is a known risk factor for hypoglycemia; however, less is known about physical food insecurity (due to difficulty cooking or shopping for food), which may increase with age, and its association with hypoglycemia. OBJECTIVE: Study associations between food insecurity and severe hypoglycemia. DESIGN: Survey based cross-sectional study. PARTICIPANTS: Survey responses were collected in 2019 from 1,164 older (≥ 65 years) patients with type 2 diabetes treated with insulin or sulfonylureas. MAIN MEASURES: Risk ratios (RR) for economic and physical food insecurity associated with self-reported severe hypoglycemia (low blood glucose requiring assistance) adjusted for age, financial strain, HbA1c, Charlson comorbidity score and frailty. Self-reported reasons for hypoglycemia endorsed by respondents. KEY RESULTS: Food insecurity was reported by 12.3% of the respondents; of whom 38.4% reported economic food insecurity only, 21.1% physical food insecurity only and 40.5% both. Economic food insecurity and physical food insecurity were strongly associated with severe hypoglycemia (RR = 4.3; p = 0.02 and RR = 4.4; p = 0.002, respectively). Missed meals ("skipped meals, not eating enough or waiting too long to eat") was the dominant reason (77.5%) given for hypoglycemia. CONCLUSIONS: Hypoglycemia prevention efforts among older patients with diabetes using hypoglycemia-prone medications should address food insecurity. Standard food insecurity questions, which are used to identify economic food insecurity, will fail to identify patients who have physical food insecurity only.

3.
J Med Internet Res ; 26: e48243, 2024 Jan 10.
Artigo em Inglês | MEDLINE | ID: mdl-38198205

RESUMO

BACKGROUND: eHealth websites are increasingly being used by community members to obtain information about endometriosis. Additionally, clinicians can use these websites to enhance their understanding of the condition and refer patients to these websites. However, poor-quality information can adversely impact users. Therefore, a critical evaluation is needed to assess and recommend high-quality endometriosis websites. OBJECTIVE: This study aimed to evaluate the quality and provide recommendations for high-quality endometriosis eHealth websites for the community and clinicians. METHODS: PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) 2020 guidelines informed 2 Google searches of international and Australian eHealth websites. The first search string used the terms "endometriosis," "adenomyosis," or "pelvic pain," whereas "Australia" was added to the second search string. Only free eHealth websites in English were included. ENLIGHT, a validated tool, was used to assess the quality across 7 domains such as usability, visual design, user engagement, content, therapeutic persuasiveness, therapeutic alliance, and general subjective evaluation. Websites with a total score of 3.5 or more were classified as "good" according to the ENLIGHT scoring system and are recommended as high-quality eHealth websites for information on endometriosis. RESULTS: In total, 117 eHealth websites were screened, and 80 were included in the quality assessment. Four high-quality eHealth websites (ie, those that scored 3.5 or more) were identified (Endometriosis Australia Facebook Page, Endometriosis UK, National Action Plan for Endometriosis on EndoActive, and Adenomyosis by the Medical Republic). These websites provided easily understood, engaging, and accurate information. Adenomyosis by the Medical Republic can be used as a resource in clinical practice. Most eHealth websites scored well, 3.5 or more in the domains of usability (n=76, 95%), visual design (n=64, 80%), and content (n=63, 79%). However, of the 63 websites, only 25 provided references and 26 provided authorship details. Few eHealth websites scored well on user engagement (n=18, 23%), therapeutic persuasiveness (n=2, 3%), and therapeutic alliance (n=22, 28%). In total, 30 (38%) eHealth websites scored well on general subjective evaluation. CONCLUSIONS: Although geographical location can influence the search results, we identified 4 high-quality endometriosis eHealth websites that can be recommended to the endometriosis community and clinicians. To improve quality, eHealth websites must provide evidence-based information with appropriate referencing and authorship. Factors that enhance usability, visual design, user engagement, therapeutic persuasiveness, and therapeutic alliance can lead to the successful and long-term uptake of eHealth websites. User engagement, therapeutic persuasiveness, and therapeutic alliance can be strengthened by sharing lived experiences and personal stories and by cocreating meaningful content for both the community and clinicians. Reach and discoverability can be improved by leveraging search engine optimization tools. TRIAL REGISTRATION: PROSPERO CRD42020185475; https://www.crd.york.ac.uk/PROSPERO/display_record.php?RecordID=185475&VersionID=2124365.


Assuntos
Adenomiose , Endometriose , Telemedicina , Feminino , Humanos , Austrália , Autoria
4.
J Biosoc Sci ; : 1-8, 2024 Mar 11.
Artigo em Inglês | MEDLINE | ID: mdl-38462976

RESUMO

Uganda has received praise for its success in dealing with the COVID-19 pandemic. This opinion piece uses publically available data from Johns Hopkins University to suggest that it is far from clear whether the Public Health and Social Measures (PHSM) introduced in Uganda influenced the course of the first outbreak. In addition, the analysis of data from the second and third waves in Uganda suggest that government action had little or no effect on these outbreaks. The dominant narrative of successful PHSM, therefore, needs to be reconsidered, and alternative explanations for the low rates of COVID-19-related mortality in the country need to be further understood.

5.
J Foot Ankle Surg ; 2024 Jun 22.
Artigo em Inglês | MEDLINE | ID: mdl-38914154

RESUMO

While the Lapidus bunionectomy is a common procedure utilized to address hallux valgus, the incidence of secondary surgery is not well established. Our primary goal was to determine the incidence of revision surgery and hardware removal following the Lapidus bunionectomy in addition to the risk factors associated with each. A retrospective nested case-control study of adult patients who underwent a Lapidus bunionectomy for symptomatic hallux valgus over a nine-year period was performed. The incidence rates and 95% confidence intervals (CI) of secondary surgery in the three years following the procedure along with the estimated independent associations and odds ratios between baseline demographic, clinical, and radiographic characteristics were calculated. Of the original cohort of 2,540 patients, 127 were identified (5.0%; CI: 4.1%, 5.8%) who underwent revision surgery and 165 (6.5%; CI: 5.5%, 7.5%) who underwent hardware removal following Lapidus bunionectomy. Initially, the hallux valgus angle, intermetatarsal angle, and tibial sesamoid position were risk factors for revision surgery. However, in adjusted analyses for revision surgery, using a screw for third point of fixation emerged as the only independent risk factor (odds ratio [OR]=3.01; CI: 1.59, 5.69). In adjusted analyses for hardware removal, female sex (OR=2.33; CI: 1.08, 5.00) and third point of fixation (OR=2.92; CI: 1.82, 4.69) emerged as independent risk factors. While the overall risks associated with Lapidus bunionectomy are low and the need for revision surgery are low, this study helps to identify specific risk factors for secondary surgery and hardware removal to help in evaluation and discussion with patients. LEVEL OF EVIDENCE: : 4.

6.
RNA ; 27(2): 221-233, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33219089

RESUMO

During their maturation, nascent 40S subunits enter a translation-like quality control cycle, where they are joined by mature 60S subunits to form 80S-like ribosomes. While these assembly intermediates are essential for maturation and quality control, how they form, and how their structure promotes quality control, remains unknown. To address these questions, we determined the structure of an 80S-like ribosome assembly intermediate to an overall resolution of 3.4 Å. The structure, validated by biochemical data, resolves a large body of previously paradoxical data and illustrates how assembly and translation factors cooperate to promote the formation of an interface that lacks many mature subunit contacts but is stabilized by the universally conserved methyltransferase Dim1. We also show how Tsr1 enables this interface by blocking the canonical binding of eIF5B to 40S subunits, while maintaining its binding to 60S. The structure also shows how this interface leads to unfolding of the platform, which allows for temporal regulation of the ATPase Fap7, thus linking 40S maturation to quality control during ribosome assembly.


Assuntos
Adenilato Quinase/genética , Regulação Fúngica da Expressão Gênica , Metiltransferases/genética , Proteínas Nucleares/genética , Nucleosídeo-Trifosfatase/genética , Proteínas Ribossômicas/genética , Subunidades Ribossômicas Maiores de Eucariotos/genética , Subunidades Ribossômicas Menores de Eucariotos/genética , Proteínas de Saccharomyces cerevisiae/genética , Saccharomyces cerevisiae/genética , Adenilato Quinase/química , Adenilato Quinase/metabolismo , Sítios de Ligação , Metiltransferases/química , Metiltransferases/metabolismo , Modelos Moleculares , Proteínas Nucleares/química , Proteínas Nucleares/metabolismo , Nucleosídeo-Trifosfatase/química , Nucleosídeo-Trifosfatase/metabolismo , Biogênese de Organelas , Ligação Proteica , Biossíntese de Proteínas , Conformação Proteica em alfa-Hélice , Conformação Proteica em Folha beta , Domínios e Motivos de Interação entre Proteínas , Proteínas Ribossômicas/química , Proteínas Ribossômicas/metabolismo , Subunidades Ribossômicas Maiores de Eucariotos/metabolismo , Subunidades Ribossômicas Maiores de Eucariotos/ultraestrutura , Subunidades Ribossômicas Menores de Eucariotos/metabolismo , Subunidades Ribossômicas Menores de Eucariotos/ultraestrutura , Saccharomyces cerevisiae/metabolismo , Proteínas de Saccharomyces cerevisiae/química , Proteínas de Saccharomyces cerevisiae/metabolismo
7.
J Gen Intern Med ; 38(13): 2860-2869, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37254010

RESUMO

BACKGROUND: Estimated life expectancy for older patients with diabetes informs decisions about treatment goals, cancer screening, long-term and advanced care, and inclusion in clinical trials. Easily implementable, evidence-based, diabetes-specific approaches for identifying patients with limited life expectancy are needed. OBJECTIVE: Develop and validate an electronic health record (EHR)-based tool to identify older adults with diabetes who have limited life expectancy. DESIGN: Predictive modeling based on survival analysis using Cox-Gompertz models in a retrospective cohort. PARTICIPANTS: Adults with diabetes aged ≥ 65 years from Kaiser Permanente Northern California: a 2015 cohort (N = 121,396) with follow-up through 12/31/2019, randomly split into training (N = 97,085) and test (N = 24,311) sets. Validation was conducted in the test set and two temporally distinct cohorts: a 2010 cohort (n = 89,563; 10-year follow-up through 2019) and a 2019 cohort (n = 152,357; 2-year follow-up through 2020). MAIN MEASURES: Demographics, diagnoses, utilization and procedures, medications, behaviors and vital signs; mortality. KEY RESULTS: In the training set (mean age 75 years; 49% women; 48% racial and ethnic minorities), 23% died during 5 years follow-up. A mortality prediction model was developed using 94 candidate variables, distilled into a life expectancy model with 11 input variables, and transformed into a risk-scoring tool, the Life Expectancy Estimator for Older Adults with Diabetes (LEAD). LEAD discriminated well in the test set (C-statistic = 0.78), 2010 cohort (C-statistic = 0.74), and 2019 cohort (C-statistic = 0.81); comparisons of observed and predicted survival curves indicated good calibration. CONCLUSIONS: LEAD estimates life expectancy in older adults with diabetes based on only 11 patient characteristics widely available in most EHRs and claims data. LEAD is simple and has potential application for shared decision-making, clinical trial inclusion, and resource allocation.


Assuntos
Diabetes Mellitus , Humanos , Feminino , Idoso , Masculino , Estudos Retrospectivos , Diabetes Mellitus/epidemiologia , Diabetes Mellitus/terapia , Envelhecimento , Expectativa de Vida , Fatores de Risco
8.
PLoS Biol ; 18(10): e3000960, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33048931

RESUMO

[This corrects the article DOI: 10.1371/journal.pbio.3000329.].

9.
Prev Sci ; 24(6): 1091-1101, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37452891

RESUMO

The National Institutes of Health (NIH) Office of Disease Prevention (ODP) sponsors Pathways to Prevention (P2P), an evidence-based scientific workshop program that helps advance prevention research. Each P2P workshop is presided over by an independent expert panel and informed by a systematic evidence review, scientific presentations, and public input. Post-workshop activities include collaborating with federal agency partners to develop an action plan for addressing key research gaps. Primary outcomes of P2P workshops include developing a research agenda and creating or enhancing initiatives to implement the agenda. In 2014, ODP partnered with the NIH Pain Consortium and two NIH institutes to convene "The Role of Opioids in the Treatment of Chronic Pain." This workshop assessed the state-of-the-science on the long-term effectiveness, safety, and harms of opioid use for managing chronic pain. In 2021, ODP initiated an assessment of the outcomes and impact of the Opioids P2P workshop. We applied an evaluation framework and a mixed methods approach encompassing web analytics, bibliometric assessment, grant portfolio analysis, policy assessment, and key informant interviews. Our data showed that the workshop attracted a broad audience, and its published reports had high impact. The workshop also helped inform over 100 new research projects through grants funded by three federal agencies, as well as national legislation and practice guidelines from influential organizations. In sum, the Opioids P2P workshop and follow-up activities have identified gaps in scientific knowledge, informed clinical practice, and catalyzed change on a national level for addressing the prescription opioid crisis.


Assuntos
Dor Crônica , Estados Unidos , Humanos , Dor Crônica/tratamento farmacológico , Dor Crônica/prevenção & controle , Analgésicos Opioides/uso terapêutico , Pesquisa sobre Serviços de Saúde , National Institutes of Health (U.S.)
10.
PLoS Biol ; 17(12): e3000329, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31834877

RESUMO

Premature release of nascent ribosomes into the translating pool must be prevented because these do not support viability and may be prone to mistakes. Here, we show that the kinase Rio1, the nuclease Nob1, and its binding partner Pno1 cooperate to establish a checkpoint that prevents the escape of immature ribosomes into polysomes. Nob1 blocks mRNA recruitment, and rRNA cleavage is required for its dissociation from nascent 40S subunits, thereby setting up a checkpoint for maturation. Rio1 releases Nob1 and Pno1 from pre-40S ribosomes to discharge nascent 40S into the translating pool. Weak-binding Nob1 and Pno1 mutants can bypass the requirement for Rio1, and Pno1 mutants rescue cell viability. In these strains, immature ribosomes escape into the translating pool, where they cause fidelity defects and perturb protein homeostasis. Thus, the Rio1-Nob1-Pno1 network establishes a checkpoint that safeguards against the release of immature ribosomes into the translating pool.


Assuntos
Proteínas Nucleares/metabolismo , Proteínas Serina-Treonina Quinases/metabolismo , Proteínas Ribossômicas/metabolismo , Proteínas de Saccharomyces cerevisiae/metabolismo , Ligação Proteica , Biossíntese de Proteínas/genética , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , RNA Ribossômico 18S/genética , Subunidades Ribossômicas Menores de Eucariotos/genética , Subunidades Ribossômicas Menores de Eucariotos/metabolismo , Ribossomos/genética , Ribossomos/metabolismo , Saccharomyces cerevisiae/metabolismo
11.
Pediatr Crit Care Med ; 23(3): 181-191, 2022 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-34991134

RESUMO

OBJECTIVES: The ideal crystalloid fluid bolus therapy for fluid resuscitation in children remains unclear, but pediatric data are limited. Administration of 0.9% saline has been associated with hyperchloremic metabolic acidosis and acute kidney injury. The primary objective of this systematic review was to compare the effect of balanced versus unbalanced fluid bolus therapy on the mean change in serum bicarbonate or pH within 24 hours in critically ill children. DATA SOURCES: We searched MEDLINE including Epub Ahead of Print, In-Process & Other Non-Indexed Citations, Embase, CENTRAL Trials Registry of the Cochrane Collaboration, ClinicalTrials.gov, and World Health Organization International Clinical Trials Registry Platform. STUDY SELECTION: Using the Preferred Reporting Items for Systematic Review and Meta-analysis Protocols guidelines, we retrieved all controlled trials and observational cohort studies comparing balanced and unbalanced resuscitative fluids in critically ill children. The primary outcome was the change in serum bicarbonate or blood pH. Secondary outcomes included the prevalence of hyperchloremia, acute kidney injury, renal replacement therapy, and mortality. DATA EXTRACTION: Study screening, inclusion, data extraction, and risk of bias assessments were performed independently by two authors. DATA SYNTHESIS: Among 481 references identified, 13 met inclusion criteria. In the meta-analysis of three randomized controlled trials with a population of 162 patients, we found a greater mean change in serum bicarbonate level (pooled estimate 1.60 mmol/L; 95% CI, 0.04-3.16; p = 0.04) and pH level (pooled mean difference 0.03; 95% CI, 0.00-0.06; p = 0.03) after 4-12 hours of rehydration with balanced versus unbalanced fluids. No differences were found in chloride serum level, acute kidney injury, renal replacement therapy, or mortality. CONCLUSIONS: Our systematic review found some evidence of improvement in blood pH and bicarbonate values in critically ill children after 4-12 hours of fluid bolus therapy with balanced fluid compared with the unbalanced fluid. However, a randomized controlled trial is needed to establish whether these findings have an impact on clinical outcomes before recommendations can be generated.


Assuntos
Injúria Renal Aguda , Estado Terminal , Injúria Renal Aguda/tratamento farmacológico , Bicarbonatos , Criança , Estado Terminal/terapia , Soluções Cristaloides , Feminino , Hidratação/efeitos adversos , Hidratação/métodos , Humanos , Masculino
12.
BMC Emerg Med ; 22(1): 152, 2022 09 02.
Artigo em Inglês | MEDLINE | ID: mdl-36056328

RESUMO

BACKGROUND: Post-resuscitation debriefing (PRD) is the process of facilitated, reflective discussion, enabling team-based interpersonal feedback and identification of systems-level barriers to patient care. The importance and benefits of PRD are well recognized; however, numerous barriers exist, preventing its practical implementation. Use of a debriefing tool can aid with facilitating debriefing, creating realistic objectives, and providing feedback. OBJECTIVES: To assess utility of two PRD tools, Debriefing In Situ Conversation after Emergent Resuscitation Now (DISCERN) and Post-Code Pause (PCP), through user preference. Secondary aims included evaluating differences in quality, subject matter, and types of feedback between tools and implications on quality improvement and patient safety. METHODS: Prospective, crossover study over a 12-month period from February 2019 to January 2020. Two PDR tools were implemented in 8 week-long blocks in acute care settings at a tertiary care children's hospital. Debriefings were triggered for any intubation, resuscitation, serious/unanticipated patient outcome, or by request for distressing situations. Post-debriefing, team members completed survey evaluations of the PDR tool used. Descriptive statistics were used to analyze survey responses. A thematic analysis was conducted to identify themes that emerged from qualitative responses. RESULTS: A total of 114 debriefings took place, representing 655 total survey responses, 327 (49.9%) using PCP and 328 (50.1%) using DISCERN. 65.2% of participants found that PCP provided emotional support while only 50% of respondents reported emotional support from DISCERN. PCP was found to more strongly support clinical education (61.2% vs 56.7%). There were no significant differences in ease of use, support of the debrief process, number of newly identified improvement opportunities, or comfort in making comments or raising questions during debriefs between tools. Thematic analysis revealed six key themes: communication, quality of care, team function & dynamics, resource allocation, preparation and response, and support. CONCLUSION: Both tools provide teams with an opportunity to reflect on critical events. PCP provided a more organized approach to debriefing, guided the conversation to key areas, and discussed team member wellbeing. When implementing a PRD tool, environmental constraints, desired level of emotional support, and the extent to which open ended data is deemed valuable should be considered.


Assuntos
Competência Clínica , Equipe de Assistência ao Paciente , Criança , Estudos Cross-Over , Humanos , Estudos Prospectivos , Ressuscitação
13.
Circ Res ; 125(1): 7-13, 2019 06 21.
Artigo em Inglês | MEDLINE | ID: mdl-31219738

RESUMO

Cardiovascular diseases remain the leading cause of mortality and a major contributor to preventable deaths worldwide. The dominant modifiable risk factors and the social and environmental determinants that increase cardiovascular risk are known, and collectively, are as important in racial and ethnic minority populations as they are in majority populations. Their prevention and treatment remain the foundation for cardiovascular health promotion and disease prevention. Genetic and epigenetic factors are increasingly recognized as important contributors to cardiovascular risk and provide an opportunity for advancing precision cardiovascular medicine. In this review, we explore emerging concepts at the interface of precision medicine and cardiovascular disease in racial and ethnic minority populations. Important among these are the lack of racial and ethnic diversity in genomics studies and biorepositories; the resulting misclassification of benign variants as pathogenic in minorities; and the importance of ensuring ancestry-matched controls in variant interpretation. We address the relevance of epigenetics, pharmacogenomics, genetic testing and counseling, and their social and cultural implications. We also examine the potential impact of precision medicine on racial and ethnic disparities. The National Institutes of Health's All of Us Research Program and the National Heart, Lung, and Blood Institute's Trans-Omics for Precision Medicine Initiative are presented as examples of research programs at the forefront of precision medicine and diversity to explore research implications in minorities. We conclude with an overview of implementation research challenges in precision medicine and the ethical implications in minority populations. Successful implementation of precision medicine in cardiovascular disease in minority populations will benefit from strategies that directly address diversity and inclusion in genomics research and go beyond race and ethnicity to explore ancestry-matched controls, as well as geographic, cultural, social, and environmental determinants of health.


Assuntos
Doenças Cardiovasculares/etnologia , Etnicidade , Acessibilidade aos Serviços de Saúde/tendências , Grupos Minoritários , Medicina de Precisão/tendências , Doenças Cardiovasculares/terapia , Disparidades em Assistência à Saúde/etnologia , Disparidades em Assistência à Saúde/tendências , Humanos , Medicina de Precisão/métodos
14.
Disasters ; 45 Suppl 1: S195-S215, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34553404

RESUMO

Discussions on African responses to Covid-19 have focused on the state and its international backers. Far less is known about a wider range of public authorities, including chiefs, humanitarians, criminal gangs, and armed groups. This paper investigates how the pandemic provided opportunities for claims to and contests over power in Uganda, the Democratic Republic of the Congo, and South Sudan. Ethnographic research is used to contend that local forms of public authority can be akin to miniature sovereigns, able to interpret dictates, policies, and advice as required. Alongside coping with existing complex protracted emergencies, many try to advance their own agendas and secure benefits. Those they seek to govern, though, do not passively accept the new normal, instead often challenging those in positions of influence. This paper assesses which of these actions and reactions will have lasting effects on local notions of statehood and argues for a public authorities lens in times of crisis.


Assuntos
COVID-19 , República Democrática do Congo , Humanos , SARS-CoV-2 , Sudão do Sul/epidemiologia , Uganda
15.
JAMA ; 325(22): 2273-2284, 2021 06 08.
Artigo em Inglês | MEDLINE | ID: mdl-34077502

RESUMO

Importance: Continuous glucose monitoring (CGM) is recommended for patients with type 1 diabetes; observational evidence for CGM in patients with insulin-treated type 2 diabetes is lacking. Objective: To estimate clinical outcomes of real-time CGM initiation. Design, Setting, and Participants: Exploratory retrospective cohort study of changes in outcomes associated with real-time CGM initiation, estimated using a difference-in-differences analysis. A total of 41 753 participants with insulin-treated diabetes (5673 type 1; 36 080 type 2) receiving care from a Northern California integrated health care delivery system (2014-2019), being treated with insulin, self-monitoring their blood glucose levels, and having no prior CGM use were included. Exposures: Initiation vs noninitiation of real-time CGM (reference group). Main Outcomes and Measures: Ten end points measured during the 12 months before and 12 months after baseline: hemoglobin A1c (HbA1c); hypoglycemia (emergency department or hospital utilization); hyperglycemia (emergency department or hospital utilization); HbA1c levels lower than 7%, lower than 8%, and higher than 9%; 1 emergency department encounter or more for any reason; 1 hospitalization or more for any reason; and number of outpatient visits and telephone visits. Results: The real-time CGM initiators included 3806 patients (mean age, 42.4 years [SD, 19.9 years]; 51% female; 91% type 1, 9% type 2); the noninitiators included 37 947 patients (mean age, 63.4 years [SD, 13.4 years]; 49% female; 6% type 1, 94% type 2). The prebaseline mean HbA1c was lower among real-time CGM initiators than among noninitiators, but real-time CGM initiators had higher prebaseline rates of hypoglycemia and hyperglycemia. Mean HbA1c declined among real-time CGM initiators from 8.17% to 7.76% and from 8.28% to 8.19% among noninitiators (adjusted difference-in-differences estimate, -0.40%; 95% CI, -0.48% to -0.32%; P < .001). Hypoglycemia rates declined among real-time CGM initiators from 5.1% to 3.0% and increased among noninitiators from 1.9% to 2.3% (difference-in-differences estimate, -2.7%; 95% CI, -4.4% to -1.1%; P = .001). There were also statistically significant differences in the adjusted net changes in the proportion of patients with HbA1c lower than 7% (adjusted difference-in-differences estimate, 9.6%; 95% CI, 7.1% to 12.2%; P < .001), lower than 8% (adjusted difference-in-differences estimate, 13.1%; 95% CI, 10.2% to 16.1%; P < .001), and higher than 9% (adjusted difference-in-differences estimate, -7.1%; 95% CI, -9.5% to -4.6%; P < .001) and in the number of outpatient visits (adjusted difference-in-differences estimate, -0.4; 95% CI, -0.6 to -0.2; P < .001) and telephone visits (adjusted difference-in-differences estimate, 1.1; 95% CI, 0.8 to 1.4; P < .001). Initiation of real-time CGM was not associated with statistically significant changes in rates of hyperglycemia, emergency department visits for any reason, or hospitalizations for any reason. Conclusions and Relevance: In this retrospective cohort study, insulin-treated patients with diabetes selected by physicians for real-time continuous glucose monitoring compared with noninitiators had significant improvements in hemoglobin A1c and reductions in emergency department visits and hospitalizations for hypoglycemia, but no significant change in emergency department visits or hospitalizations for hyperglycemia or for any reason. Because of the observational study design, findings may have been susceptible to selection bias.


Assuntos
Técnicas Biossensoriais/métodos , Automonitorização da Glicemia/métodos , Diabetes Mellitus Tipo 1/sangue , Diabetes Mellitus Tipo 2/sangue , Adulto , Técnicas Biossensoriais/instrumentação , Automonitorização da Glicemia/estatística & dados numéricos , Intervalos de Confiança , Diabetes Mellitus Tipo 1/tratamento farmacológico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Feminino , Hemoglobinas Glicadas/análise , Necessidades e Demandas de Serviços de Saúde/estatística & dados numéricos , Hospitalização/estatística & dados numéricos , Humanos , Hiperglicemia/sangue , Hiperglicemia/diagnóstico , Hiperglicemia/epidemiologia , Hipoglicemia/sangue , Hipoglicemia/diagnóstico , Hipoglicemia/epidemiologia , Hipoglicemiantes/uso terapêutico , Insulina/uso terapêutico , Masculino , Pessoa de Meia-Idade , Números Necessários para Tratar , Pontuação de Propensão , Estudos Retrospectivos , Viés de Seleção , Fatores de Tempo , Resultado do Tratamento
16.
Circ Res ; 122(2): 213-230, 2018 01 19.
Artigo em Inglês | MEDLINE | ID: mdl-29348251

RESUMO

Cardiovascular disparities remain pervasive in the United States. Unequal disease burden is evident among population groups based on sex, race, ethnicity, socioeconomic status, educational attainment, nativity, or geography. Despite the significant declines in cardiovascular disease mortality rates in all demographic groups during the last 50 years, large disparities remain by sex, race, ethnicity, and geography. Recent data from modeling studies, linked micromap plots, and small-area analyses also demonstrate prominent variation in cardiovascular disease mortality rates across states and counties, with an especially high disease burden in the southeastern United States and Appalachia. Despite these continued disparities, few large-scale intervention studies have been conducted in these high-burden populations to examine the feasibility of reducing or eliminating cardiovascular disparities. To address this challenge, on June 22 and 23, 2017, the National Heart, Lung, and Blood Institute convened experts from a broad range of biomedical, behavioral, environmental, implementation, and social science backgrounds to summarize the current state of knowledge of cardiovascular disease disparities and propose intervention strategies aligned with the National Heart, Lung, and Blood Institute mission. This report presents the themes, challenges, opportunities, available resources, and recommended actions discussed at the workshop.


Assuntos
Pesquisa Biomédica/tendências , Doenças Cardiovasculares/terapia , Educação/tendências , Disparidades em Assistência à Saúde/tendências , National Heart, Lung, and Blood Institute (U.S.)/tendências , Relatório de Pesquisa/tendências , Pesquisa Biomédica/economia , Pesquisa Biomédica/métodos , Doenças Cardiovasculares/economia , Doenças Cardiovasculares/epidemiologia , Serviços de Saúde Comunitária/economia , Serviços de Saúde Comunitária/métodos , Serviços de Saúde Comunitária/tendências , Educação/economia , Educação/métodos , Disparidades em Assistência à Saúde/economia , Humanos , National Heart, Lung, and Blood Institute (U.S.)/economia , Estados Unidos/epidemiologia
17.
BMC Womens Health ; 19(1): 64, 2019 05 14.
Artigo em Inglês | MEDLINE | ID: mdl-31088434

RESUMO

BACKGROUND: Endometriosis is a chronic disease impacting on many aspects of a woman's life. Because of the chronic and recurring nature, many of the impacts of endometriosis could be missed using existing questionnaires which focus on recent events. Therefore, a questionnaire with a long-term perspective is necessary. This study aimed to develop and evaluate a questionnaire to measure the long-term impact of endometriosis on different aspects of women's lives. METHODS: Through a methodological design, phase 1 was qualitative and phase 2 was a cross-sectional study. The original 100 EIQ items were developed based on results from an earlier qualitative study and literature review. Through a process of assessing face and content validity this was reduced to 66 items. The psychometric properties of the final 63 item EIQ were evaluated through a web-based survey with data from 423 responders with a self-reported surgically-diagnosed endometriosis. RESULTS: Participants were aged 16-58 years. Exploratory factor analysis of a 66-item EIQ was established with 423 responders. The final 63-item EIQ contained six dimensions including: 33-item physical-psychosocial; 3-item fertility; 7-item sexual; 11-item employment; 6-item educational; and 3-item lifestyle. Cronbach's alpha of 0.99 for the whole 63-item EIQ, and 0.84 to 0.98 for the dimensions suggests a very good reliability. High positive correlations between the EIQ and the EHP-5 (altered recall period) indicated good evidence of concurrent validity. High intra-class correlations indicated very good test-retest reliability. CONCLUSIONS: The EIQ, as a disease-specific questionnaire, could be used to provide a better understanding of the impact of endometriosis on different aspects of life, to better meet the needs of women. We recommend additional studies to establish validity evidence for the EIQ, including studies in other countries and languages.


Assuntos
Endometriose/psicologia , Qualidade de Vida/psicologia , Autorrelato , Adolescente , Adulto , Estudos Transversais , Feminino , Humanos , Pessoa de Meia-Idade , Psicometria , Reprodutibilidade dos Testes , Índice de Gravidade de Doença , Inquéritos e Questionários , Adulto Jovem
18.
JAMA ; 320(1): 53-62, 2018 07 03.
Artigo em Inglês | MEDLINE | ID: mdl-29936529

RESUMO

Importance: In clinical trials of patients with type 2 diabetes, long-acting insulin analogs modestly reduced the risk of nocturnal hypoglycemia compared with human neutral protamine Hagedorn (NPH) insulin, but cost 2 to 10 times more. Outcomes in clinical practice may differ from trial results. Objective: To compare the rates of hypoglycemia-related emergency department (ED) visits or hospital admissions associated with initiation of long-acting insulin analogs vs human NPH insulin in patients with type 2 diabetes. Design, Setting, and Participants: A retrospective observational study using data from Kaiser Permanente of Northern California from January 1, 2006, through September 30, 2015. Patients with type 2 diabetes who initiated a long-acting insulin analog or NPH insulin were included and censored at death, loss of health plan coverage, change in insulin treatment, or study end on September 30, 2015. Exposure: Initiation of basal insulin analogs (glargine or detemir) vs NPH insulin. Main Outcomes and Measures: The primary outcome was the time to a hypoglycemia-related ED visit or hospital admission and the secondary outcome was the change in hemoglobin A1c level within 1 year of insulin initiation. Results: There were 25 489 patients with type 2 diabetes who initiated basal insulin therapy (mean age, 60.2 [SD, 11.8] years; 51.9% white; 46.8% female). During a mean follow-up of 1.7 years, there were 39 hypoglycemia-related ED visits or hospital admissions among 1928 patients who initiated insulin analogs (11.9 events [95% CI, 8.1 to 15.6] per 1000 person-years) compared with 354 hypoglycemia-related ED visits or hospital admissions among 23 561 patients who initiated NPH insulin (8.8 events [95% CI, 7.9 to 9.8] per 1000 person-years) (between-group difference, 3.1 events [95% CI, -1.5 to 7.7] per 1000 person-years; P = .07). Among 4428 patients matched by propensity score, the adjusted hazard ratio was 1.16 (95% CI, 0.71 to 1.78) for hypoglycemia-related ED visits or hospital admissions associated with insulin analog use. Within 1 year of insulin initiation, hemoglobin A1c level decreased from 9.4% (95% CI, 9.3% to 9.5%) to 8.2% (95% CI, 8.1% to 8.2%) after initiation of insulin analogs and from 9.4% (95% CI, 9.3% to 9.5%) to 7.9% (95% CI, 7.9% to 8.0%) after initiation of NPH insulin (adjusted difference-in-differences for glycemic control, -0.22% [95% CI, -0.09% to -0.37%]). Conclusions and Relevance: Among patients with type 2 diabetes, initiation of a basal insulin analog compared with NPH insulin was not associated with a reduced risk of hypoglycemia-related ED visits or hospital admissions or with improved glycemic control. These findings suggest that the use of basal insulin analogs in usual practice settings may not be associated with clinical advantages for these outcomes.


Assuntos
Diabetes Mellitus Tipo 2/tratamento farmacológico , Hospitalização/estatística & dados numéricos , Hipoglicemia/induzido quimicamente , Hipoglicemiantes/efeitos adversos , Insulina Detemir/efeitos adversos , Insulina Glargina/efeitos adversos , Insulina Isófana/efeitos adversos , Adulto , Idoso , Glicemia/efeitos dos fármacos , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/complicações , Serviço Hospitalar de Emergência/estatística & dados numéricos , Feminino , Humanos , Hipoglicemia/prevenção & controle , Hipoglicemiantes/uso terapêutico , Insulina Detemir/uso terapêutico , Insulina Glargina/uso terapêutico , Insulina Isófana/uso terapêutico , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
19.
Pediatr Crit Care Med ; 18(5): 405-413, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-28328786

RESUMO

OBJECTIVES: High-quality, adequately powered, randomized controlled trials are needed to inform the care of critically ill children. Unfortunately, such evidence is not always available. Our objective was to identify barriers and facilitators of conducting high-quality randomized controlled trials in pediatric critical care, from the perspective of trialists in this field. DESIGN: Self-administered online survey. Respondents rated the importance of barriers and effectiveness of facilitators on seven-point scales. SETTING: Authors of 294 pediatric critical care randomized controlled trials (published 1986 to June 2015). SUBJECTS: One hundred sixteen researchers from 25 countries participated. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Respondents reported a median (Q1, Q3) of 21 years (15, 26 yr) of experience and 41 (36%) had authored more than one randomized controlled trial. More survey respondents, compared with nonrespondents, had published more than one trial (35% vs 26%; p = 0.002) and their trials were more often cited (median citations/yr, 2.4 vs 1.5; p < 0.001). Of the barriers listed, the five most important were primarily related to lack of funding. The five facilitators perceived as most effective were protected time for research, ability to recruit participants 24 hours per day/7 days per week, conducting randomized controlled trials in collaboration with a research network, funding from government agencies specifically for randomized controlled trials in critically ill children, and academic department support for conducting randomized controlled trials. Respondent experience and country income level were associated with differences in importance ratings for eight of 41 barriers. There were fewer such differences for facilitators. CONCLUSIONS: Lack of funding and time are major barriers to conducting pediatric critical care randomized controlled trials worldwide. Although barriers varied among country income levels, the facilitators of such trials were more consistent. In addition to increased funding, respondents identified other strategies such as research networks that are within the purview of the pediatric critical care research community, to facilitate the conduct of rigorous randomized controlled trials.


Assuntos
Cuidados Críticos , Pediatria , Ensaios Clínicos Controlados Aleatórios como Assunto , Atitude do Pessoal de Saúde , Criança , Países Desenvolvidos , Países em Desenvolvimento , Humanos , Modelos Lineares , Ensaios Clínicos Controlados Aleatórios como Assunto/economia , Ensaios Clínicos Controlados Aleatórios como Assunto/métodos , Pesquisadores , Apoio à Pesquisa como Assunto , Inquéritos e Questionários , Fatores de Tempo
20.
J Health Commun ; 21(5): 544-53, 2016 05.
Artigo em Inglês | MEDLINE | ID: mdl-27116591

RESUMO

The purpose of this study was to explore communication barriers as independent predictors and potential mediators of variation in clinical recognition of diabetic peripheral neuropathy (DPN). In this cross-sectional analysis, we estimated the likelihood of having a DPN diagnosis among 4,436 patients with DPN symptoms. We controlled for symptom frequency, demographic and clinical characteristics, and visit frequency using a modified Poisson regression model. We then evaluated 4 communication barriers as independent predictors of clinical documentation and as possible mediators of racial/ethnic differences: difficulty speaking English, not talking to one's doctor about pain, limited health literacy, and reports of suboptimal patient-provider communication. Difficulty speaking English and not talking with one's doctor about pain were independently associated with not having a diagnosis, though limited health literacy and suboptimal patient-provider communication were not. Limited English proficiency partially attenuated, but did not fully explain, racial/ethnic differences in clinical documentation among Chinese, Latino, and Filipino patients. Providers should be encouraged to talk with their patients about DPN symptoms, and health systems should consider enhancing strategies to improve timely clinical recognition of DPN among patients who have difficult speaking English. More work is needed to understand persistent racial/ethnic differences in diagnosis.


Assuntos
Barreiras de Comunicação , Neuropatias Diabéticas/diagnóstico , Idioma , Relações Médico-Paciente , Adulto , Idoso , Estudos de Coortes , Estudos Transversais , Neuropatias Diabéticas/etnologia , Feminino , Disparidades em Assistência à Saúde/etnologia , Humanos , Masculino , Pessoa de Meia-Idade
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA