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1.
BMC Health Serv Res ; 23(1): 68, 2023 Jan 23.
Artigo em Inglês | MEDLINE | ID: mdl-36690992

RESUMO

BACKGROUND: In Canada, Ontario Health Teams (OHTs) are a new model for integrated healthcare. Core to OHTs are family physicians (FPs) and their ability to collaborate with other FPs and healthcare providers. Whereas the factors for intra-organizational collaboration have been well-studied, inter-organizational collaboration between FPs and other healthcare organizations as an integrated care network, are less understood. This paper aims to explore the structural factors, processes, and theoretical frameworks that support FPs' collaboration for integrated healthcare. METHODS: A scoping review was undertaken based on Joanna Briggs Institute (JBI) methodology for scoping review and using the Preferred Reporting Items for Systematic Review and Meta-Analysis for Scoping Review (PRISMA_ScR) checklist. A search for academic and relevant grey literature published between 2000-2021 was conducted across databases (MEDLINE, EMBASE, EBSCOhost).Thematic analysis was used to identify the key findings of the selected studies. RESULTS: Thirty-two studies were included as eligible for this review. Three structural components were identified as critical to FPs' successful participation in inter-organizational partnerships: (1) shared vision/values, (2) leadership by FPs, and (3) defined decision-making procedures. Also, three processes were identified: (1) effective communication, (2) a collective sense of motivation for change, and (3) relationships built on trust. Three theoretical frameworks provided insight into collaborative initiatives: (1) Social Identity Approach, (2) framework of interprofessional collaboration, and (3) competing values framework. CONCLUSION: FPs hold unique positions in healthcare and this review is the first to synthesize the best evidence for building collaborations between FPs and other healthcare sectors. These findings will inform collaboration strategies for healthcare integration, including with OHTs.


Assuntos
Atenção à Saúde , Médicos de Família , Humanos , Instalações de Saúde , Ontário , Grupos Populacionais
2.
BMC Health Serv Res ; 23(1): 1113, 2023 Oct 17.
Artigo em Inglês | MEDLINE | ID: mdl-37848926

RESUMO

BACKGROUND: The Ontario Health Team (OHT) model is a form of integrated care that seeks to provide coordinated delivery of care to communities across Ontario, Canada. Primary care is positioned at the heart of the OHT model, yet physician participation and representation has been severely challenged at planning and governance tables. The purpose of this multiple case study is to examine (1) processes and structures to enable family physician participation in OHTs and (2) describe challenges to family physician participation. METHODS: We chose a qualitative, exploratory multiple-case study approach following Yin's design and methods. The study took place between June and December 2021.We conducted semi-structured interviews with OHT stakeholders in four communities and carried out an analysis of internal and external documents to contextualize interview findings. Thematic analysis was applied within case and between cases. RESULTS: Four OHTs participated in this study with thirty-nine participants (17 family physicians; 22 other stakeholders). Over 60 documents were analyzed. Within-case analysis found that structures and processes should be formalized and established to facilitate physician participation. Skepticism, burnout, heavy workload, and the COVID-19 pandemic were challenges to participation. Between-case analysis found that participation varied. Face-to-face communication processes were favoured in all cases and history of collaboration facilitated relationship-building. All cases faced similar challenges to physician participation despite regional differences. CONCLUSIONS: The implementation of OHTs demonstrates that integrated care models can address critical health system issues through a collective approach. Physician participation is vital to the development of an OHT, however, recognition of their challenges (skepticism, burnout, COVID-19 pandemic) to participating must be acknowledged first. To ensure that models like OHTs thrive, physicians must be meaningfully engaged in various aspects and levels of governance and delivery.


Assuntos
COVID-19 , Médicos de Família , Humanos , Ontário , Pandemias , COVID-19/epidemiologia , Pesquisa Qualitativa
3.
Healthc Q ; 26(1): 50-58, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37144702

RESUMO

SCOPE (Seamless Care Optimizing the Patient Experience) launched in 2012 to support primary care in downtown Toronto with live navigation and rapid access to acute and community care resources for primary care providers (PCPs) and their patients. Ten years later, over 1,800 PCPs across Ontario have signed up for SCOPE and over 48,000 interactions in the form of e-mail, fax, phone and secure messaging have been conducted. Case examples illustrate the ways in which SCOPE has been adapted across a range of Ontario Health Teams, including under-resourced, small urban and rural sites. Primary care engagement, change management strategies and flexibility to meet the individual needs of each site have been key factors in the successful spread and scale of SCOPE's services.


Assuntos
Atenção Primária à Saúde , Humanos , Ontário
4.
Crit Care ; 23(1): 182, 2019 05 21.
Artigo em Inglês | MEDLINE | ID: mdl-31113475

RESUMO

BACKGROUND: Sepsis remains one of the most important causes of morbidity and mortality worldwide. In approximately 30-50% of cases of suspected sepsis, no pathogen is isolated, disabling the clinician to treat the patient with targeted antimicrobial therapy. Studies investigating the differences in the patient outcomes between culture-positive and culture-negative sepsis patients have only been conducted in subgroups of sepsis patients and results are ambiguous. METHODS: This is a sub-analysis of the PHANTASi (Prehospital Antibiotics Against Sepsis trial), a randomized controlled trial that focused on the effect of prehospital antibiotics in sepsis patients. We evaluated the outcome of cultures from different sources and determined what the clinical implications of having a positive culture compared to negative cultures were for patient outcomes. Furthermore, we looked at the effect of antibiotics on culture outcomes. RESULTS: 1133 patients (42.6%) with culture-positive sepsis were identified, compared to 1526 (56.4%) patients with culture-negative sepsis. 28-day mortality (RR 1.43 [95% CI 1.11-1.83]) and 90-day mortality (RR 1.41 [95% CI 1.15-1.71]) were significantly higher in culture-positive patients compared to culture-negative patients. Culture-positive sepsis was also associated with ≥ 3 organ systems affected during the sepsis episode (RR 4.27 [95% CI 2.78-6.60]). Patients who received antibiotics at home more often had negative blood cultures (85.9% vs. 78%) than those who did not (p < 0.001). CONCLUSIONS: Our results show that culture-positive sepsis is associated with a higher mortality rate and culture-positive patients more often have multiple organ systems affected during the sepsis episode. TRIAL REGISTRATION: The PHANTASi trial is registered at ClinicalTrials.gov, number NCT01988428 . Date of registration: November 20, 2013.


Assuntos
Hemocultura/estatística & dados numéricos , Mortalidade/tendências , Sepse/tratamento farmacológico , Sepse/microbiologia , Idoso , Idoso de 80 Anos ou mais , Antibacterianos/uso terapêutico , Hemocultura/métodos , Distribuição de Qui-Quadrado , Serviços Médicos de Emergência/métodos , Serviços Médicos de Emergência/tendências , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Países Baixos , Escores de Disfunção Orgânica , Avaliação de Resultados em Cuidados de Saúde/estatística & dados numéricos , Sepse/complicações , Análise de Sobrevida
5.
Phys Biol ; 14(4): 046001, 2017 06 29.
Artigo em Inglês | MEDLINE | ID: mdl-28585521

RESUMO

Amyloid fibrils are highly structured protein aggregates associated with a wide range of diseases including Alzheimer's and Parkinson's. We report a structural investigation of an amyloid fibril model prepared from a commonly used plasma protein (bovine serum albumin (BSA)) using small-angle x-ray scattering (SAXS) technique. As a reference, the size estimates from SAXS are compared to dynamic light scattering (DLS) data and the presence of amyloid-like fibrils is confirmed using Congo red absorbance assay. Our SAXS results consistently show the structural transformation of BSA from spheroid to rod-like elongated structures during the fibril formation process. We observe the elongation of fibrils over two months with fibril length growing from 35.9 ± 3.0 nm to 51.5 ± 2.1 nm. Structurally metastable fibrils with distinct SAXS profiles have been identified. As proof of concept, we demonstrate the use of such distinct SAXS profiles to detect fibrils in the mixture solutions of two species by estimating their volume fractions. This easily detectable and well-characterized amyloid fibril model from BSA can be readily used as a control or standard reference to further investigate SAXS applications in the detection of structurally diverse amyloid fibrils associated with protein aggregation diseases.


Assuntos
Amiloide/química , Difusão Dinâmica da Luz , Modelos Biológicos , Espalhamento a Baixo Ângulo , Difração de Raios X , Soroalbumina Bovina/química , Fatores de Tempo
6.
Prehosp Emerg Care ; 20(1): 90-6, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26024065

RESUMO

Little is known about the epidemiology of sepsis in the Netherlands. In addition, information regarding the ability of emergency medical services (EMS) personnel to recognize sepsis is lacking. The aim of this study is to determine epidemiological characteristics of sepsis and the recognition of sepsis by EMS personnel in an urban area in the Netherlands. We conducted a retrospective cohort study using transport information from EMS Amsterdam and admission diagnoses at the emergency department gathered through discharge data from two academic hospitals in Amsterdam for the year 2012. A total of 253 patients with sepsis were evaluated, of which 131 were transported by ambulance. The in-hospital mortality rate of the total population was 21% and a mean length of hospital stay was of 13.5 days. Sixty-seven patients (26.5%) were admitted to the intensive care unit. Almost half of the patients were assigned to the internal medicine ward (117; 46.2%). The most common site of infection was the urinary tract (30%). E. coli was the most frequent cause of infections. EMS staff recognized 18/131 (13.7%) transported patients with (severe) sepsis or septic shock. In 52 cases (39.7%) sepsis went unrecognized, probably due to an incomplete primary survey. In 60 cases (45.8%) sepsis went unrecognized, although enough systemic inflammatory response syndrome criteria were present at initial presentation. Recognition of sepsis by EMS staff in the Netherlands is low, probably due to a lack of awareness of the syndrome and infrequent measurement of temperature and respiratory rate. As early initiation of treatment is crucial, the EMS staff, general practitioners, and other specialties could benefit from more education on this critical illness.


Assuntos
Serviços Médicos de Emergência , Auxiliares de Emergência , Sepse/diagnóstico , Sepse/epidemiologia , Idoso , Ambulâncias , Feminino , Mortalidade Hospitalar , Humanos , Unidades de Terapia Intensiva/estatística & dados numéricos , Tempo de Internação/estatística & dados numéricos , Masculino , Países Baixos/epidemiologia , Estudos Retrospectivos , Fatores de Risco , Sepse/mortalidade
7.
Compr Rev Food Sci Food Saf ; 15(1): 219-233, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33371579

RESUMO

Honey is a popular natural food product with a very complex composition mainly consisting of both organic and inorganic constituents. The composition of honey is strongly influenced by both natural and anthropogenic factors, which vary based on its botanical and geographical origins. Although minerals and heavy metals are minor constituents of honey, they play vital role in determining its quality. There are several different analytical methods used to determine the chemical elements in honey. These methods are typically based on spectroscopy or spectrometry techniques (including atomic absorption spectrometry, atomic emission spectrometry, inductively coupled plasma mass spectrometry, and inductively coupled plasma optical emission spectrometry). This review compiles available scientific information on minerals and heavy metals in honey reported from all over the world. To date, 54 chemical elements in various types of honey have been identified and can be divided into 3 groups: major or macroelements (Na, K, Ca, Mg, P, S, Cl), minor or trace elements (Al, Cu, Pb, Zn, Mn, Cd, Tl, Co, Ni, Rb, Ba, Be, Bi, U, V, Fe, Pt, Pd, Te, Hf, Mo, Sn, Sb, La, I, Sm, Tb, Dy, Sd, Th, Pr, Nd, Tm, Yb, Lu, Gd, Ho, Er, Ce, Cr, As, B, Br, Cd, Hg, Se, Sr), and heavy metals (trace elements that have a specific gravity at least 5 times higher than that of water and inorganic sources). Chemical elements in honey samples throughout the world vary in terms of concentrations and are also influenced by environmental pollution.

8.
Acute Med ; 15(4): 168-175, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-28112285

RESUMO

INTRODUCTION: General practitioners (GPs) and the emergency medical services (EMS) personnel have a pivotal role as points of entry into the acute care chain. This study was conducted to investigate the recognition of sepsis by GPs and EMS personnel and to evaluate the associations between recognition of sepsis in the pre-hospital setting and patient outcomes. Methods Design: prospective, observational study during a 12 week period in the emergency department (ED) of two academic hospitals. STUDY POPULATION: Patients >18 years presenting with sepsis at the ED. The information available in the ED discharge letter and the ED charts was used to make a definite diagnosis of sepsis, severe sepsis and septic shock Outcome measures: primary: recognition/documentation of sepsis. Secondary: ED arrival time to antibiotic administration, in-hospital mortality, hospital length of stay (LOS) and intensive care unit (ICU) admission. RESULTS: A total of 301 patients were included in the study. GPs and EMS personnel correctly identified and documented 31.6% (n=114) and 41.4% of all sepsis patients (n=140) respectively. Recognition and documentation of sepsis improved with increasing severity. The mean time to administration of antibiotics (TTA) was nearly halved for the group of patients where sepsis was documented (GP: 66,4 minutes, EMS: 65,6 minutes) compared to the group in which sepsis was not documented (GP: 123,9 minutes, EMS: 101,5 minutes; p: 0.365 and p: 0.024 respectively). Conclusions There is room for improvement in the recognition of sepsis, severe sepsis and septic shock by practitioners working in the pre-hospital setting. Documentation of sepsis prior to arrival in hospital led to a reduced time delay in administration of antibiotics.


Assuntos
Serviços Médicos de Emergência/organização & administração , Mortalidade Hospitalar , Sepse/diagnóstico , Sepse/epidemiologia , Tempo para o Tratamento , Centros Médicos Acadêmicos , Adulto , Idoso , Antibacterianos/uso terapêutico , Estudos de Coortes , Terapia Combinada , Cuidados Críticos/organização & administração , Documentação , Serviço Hospitalar de Emergência/organização & administração , Feminino , Clínicos Gerais , Humanos , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde , Estudos Prospectivos , Medição de Risco , Papel (figurativo) , Sepse/terapia , Taxa de Sobrevida , Adulto Jovem
9.
Acute Med ; 15(4): 176-184, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-28112286

RESUMO

INTRODUCTION: Sepsis is one of the most frequent reasons for referral to emergency departments (EDs) worldwide. Sepsis becomes more serious when left untreated with a high mortality rate, exceeding even those of myocardial infarction and stroke. Therefore, much effort has been put in to start with appropriate therapy as early as possible. Emergency medical services (EMS) personnel have already made a significant difference in improving care for patients with acute coronary syndrome, multiple trauma and stroke. Patients with severe sepsis or septic shock could also benefit from timely prehospital care. Earlier recognition and initiation of treatment by EMS personnel may improve survival of these critically ill patients. Methods and analysis: The Prehospital Antibiotics against Sepsis (PHANTASi) trial is an investigator- initiated, multicentre, randomized controlled open-label clinical trial nested within a step wedge design. This study compares the effects of usual care to that of training EMS personnel in recognizing and initiating treatment in the prehospital setting together with early administration of antibiotics for patients suspected of (severe) sepsis and septic shock. Primary outcome is 28 day mortality. Secondary outcomes include, length of hospital stay and admission to intensive care units. Ethics and dissemination: This study has been approved by the research ethics committee of VU University Medical Centre, Amsterdam, The Netherlands (Protocol 2013.458/ NL 42001.029.13). The results of the study will be disseminated at several research conferences and international peer reviewed journals. The study will be implemented and reported in line with the CONSORT statement.


Assuntos
Serviços Médicos de Emergência/organização & administração , Auxiliares de Emergência/educação , Mortalidade Hospitalar , Sepse/diagnóstico , Sepse/tratamento farmacológico , Adulto , Idoso , Diagnóstico Precoce , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Países Baixos , Variações Dependentes do Observador , Prognóstico , Medição de Risco , Sepse/mortalidade , Taxa de Sobrevida , Resultado do Tratamento
11.
CMAJ ; 190(12): E370, 2018 03 26.
Artigo em Inglês | MEDLINE | ID: mdl-29581165
12.
BMC Complement Altern Med ; 12: 175, 2012 Oct 07.
Artigo em Inglês | MEDLINE | ID: mdl-23039061

RESUMO

BACKGROUND: Withania somnifera, also known as ashwagandha, is an important herb in ayurvedic and indigenous medical systems. The present study was designed to evaluate the antioxidant and antibacterial activities of an 80% aqueous methanolic extract of W. somnifera roots (WSREt), fruits (WSFEt) and leaves (WSLEt). METHODS: Several assays were performed to determine the antioxidant properties of this herb including 1,1-diphenyl-2-picrylhydrazyl radical (DPPH) scavenging activity, ferric reducing antioxidant power (FRAP), ferrous chelation and inhibition of ß-carotene bleaching. RESULTS: The values for DPPH, FRAP, ferrous chelation and inhibition of ß carotene bleaching for the three types of extracts ranged from 101.73-801.93 µg/ml, 2.26-3.29 mM Fe/kg, 0.22-0.65 mg/ml and 69.87-79.67%, respectively, indicating that W. somnifera, particularly the leaves, possesses significant antioxidant properties. The mean ascorbic acid content was 20.60-62.60 mg/100 g, and the mean anthocyanin content was 2.86-12.50 mg/100 g. Antibacterial activities were measured using the agar well diffusion method and five pathogenic Gram-negative bacteria: Escherichia coli, Salmonella typhi, Citrobacter freundii, Pseudomonas aeruginosa and Klebsiella pneumoniae. The leaf extracts displayed the highest activity against S. typhi (32.00 ± 0.75 mm zone of inhibition), whereas the lowest activity was against K. pneumoniae (19.00 ± 1.48 mm zone of inhibition). The lowest minimum inhibitory concentration value was 6.25 mg/ml, which was against S. typhi, followed by 12.5 mg/ml against E. coli. CONCLUSION: In addition to its antioxidant properties, W. somnifera exhibited significant antibacterial activities against Gram-negative bacteria, particularly S. typhi.


Assuntos
Antocianinas/farmacologia , Antibacterianos/farmacologia , Antioxidantes/farmacologia , Ácido Ascórbico/farmacologia , Bactérias Gram-Negativas/efeitos dos fármacos , Extratos Vegetais/farmacologia , Withania/química , Antocianinas/análise , Antibacterianos/análise , Antioxidantes/análise , Ácido Ascórbico/análise , Testes de Sensibilidade Microbiana , Extratos Vegetais/química , Folhas de Planta
13.
Molecules ; 17(1): 674-87, 2012 Jan 11.
Artigo em Inglês | MEDLINE | ID: mdl-22237682

RESUMO

This study was conducted to evaluate the effects of evaporation, gamma irradiation and temperature on the total polyphenols, flavonoids and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging activities of Tualang honey samples (n = 14) following storage over three, six or twelve months. The mean polyphenol concentrations of the six gamma irradiated honey samples at three, six and twelve months, respectively, were 96.13%, 98.01% and 102.03% higher than the corresponding values of the eight non-gamma irradiated samples. Similarly, the mean values for flavonoids at three, six and twelve months were 111.52%, 114.81% and 110.04% higher, respectively, for the gamma irradiated samples. The mean values for DPPH radical-scavenging activities at three, six and twelve months were also 67.09%, 65.26% and 44.65% higher, respectively, for the gamma irradiated samples. These data indicate that all gamma irradiated honey samples had higher antioxidant potential following gamma irradiation, while evaporation and temperature had minor effects on antioxidant potential.


Assuntos
Armazenamento de Alimentos , Sequestradores de Radicais Livres/efeitos da radiação , Raios gama , Mel/efeitos da radiação , Antioxidantes/química , Antioxidantes/efeitos da radiação , Compostos de Bifenilo/química , Dessecação , Flavonoides/química , Sequestradores de Radicais Livres/química , Mel/análise , Picratos/química , Polifenóis/química
15.
BMC Complement Altern Med ; 11: 65, 2011 Aug 19.
Artigo em Inglês | MEDLINE | ID: mdl-21854608

RESUMO

BACKGROUND: Withania somnifera is an important medicinal plant traditionally used in the treatment of many diseases. The present study was carried out to characterize the phenolic acids, flavonoids and 1,1-diphenyl-2-picrylhydrazyl radical (DPPH) scavenging activities in methanolic extracts of W. somnifera fruits, roots and leaves (WSFEt, WSREt and WSLEt). METHODS: WSFEt, WSREt and WSLEt was prepared by using 80% aqueous methanol and total polyphenols, flavonoids as well as DPPH radical scavenging activities were determined by spectrophotometric methods and phenolic acid profiles were determined by HPLC methods. RESULTS: High concentrations of both phenolics and flavonoids were detected in all parts of the plant with the former ranging between 17.80 ± 5.80 and 32.58 ± 3.16 mg/g (dry weight) and the latter ranging between 15.49 ± 1.02 and 31.58 ± 5.07 mg/g. All of the three different plant parts showed strong DPPH radical scavenging activities (59.16 ± 1.20 to 91.84 ± 0.38%). Eight polyphenols (gallic, syringic, benzoic, p-coumaric and vanillic acids as well as catechin, kaempferol and naringenin) have been identified by HPLC in parts of the plant as well. Among all the polyphenols, catechin was detected in the highest concentration (13.01 ± 8.93 to 30.61 ± 11.41 mg/g). CONCLUSION: The results indicating that W. somnifera is a plant with strong therapeutic properties thus further supporting its traditional claims. All major parts of W. somnifera such as the roots, fruits and leaves provide potential benefits for human health because of its high content of polyphenols and antioxidant activities with the leaves containing the highest amounts of polyphenols specially catechin with strong antioxidant properties.


Assuntos
Catequina/análise , Extratos Vegetais/análise , Withania/química , Catequina/isolamento & purificação , Cromatografia Líquida de Alta Pressão , Fenóis/análise , Fenóis/isolamento & purificação , Extratos Vegetais/isolamento & purificação
16.
Public Health Pract (Oxf) ; 2: 100079, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36101626

RESUMO

Objective: To understand the theoretical framework of how information, motivation, and behavioral skills (IMB) independently and collectively affect cervical cancer screening and testing adherence. Study design: Qualitative study. Methods: Data collected from three focus groups and seven individual interviews, with 33 healthcare providers, ranging from community health navigators, Ob-Gyn MD's, nurses, care coordinators, medical assistants, and outpatient managers, representing a grassroots community health agency, a large cancer center, and a public sector health clinic. We recruited providers over a five-month period in the summer to fall of 2019. Provider interviews and focus groups were structured with four to eleven participants per group and were audio-recorded. This study was rooted in grounded theory, analyzing data using the iterative process of Coding, Consensus, Co-occurrence, and Comparison to identify common themes. Results: Emerging qualitative findings include the relevance of information, the interaction between information and motivation, the role of behavioral skills, and the symbiotic relationship between information, motivation, and behavioral skills (IMB). Most notable is this interdependency between IMB components, with the core of this relationship being the critical link of coordinating adherence. Conclusion: This knowledge will help advance and expand IMB intervention components to improve time to cervical cancer screening and follow-up adherence among at-risk communities. Particularly given COVID-19 barriers, which disproportionately affect at-risk women, this study has practice implications that inform the development of cervical cancer screening practice interventions and strategies to improve adherence, while ensuring safety for both patients and providers.

17.
Healthc Policy ; 16(4): 46-69, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-34129478

RESUMO

Patient-centred care is a key priority for governments, providers and stakeholders, yet little is known about the care preferences of patient groups. We completed a scoping review that yielded 193 articles for analysis. Five health states were used to account for the diversity of possible preferences based on health needs. Five broad themes were identified and expressed differently across the health states, including personalized care, navigation, choice, holistic care and care continuity. Patients' perspectives must be considered to meet the diverse needs of targeted patient groups, which can inform health system planning, quality improvement initiatives and targeting of investments.


Assuntos
Continuidade da Assistência ao Paciente , Assistência Centrada no Paciente , Canadá , Humanos
18.
Chest ; 160(4): 1211-1221, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-33905680

RESUMO

BACKGROUND: The benefits of early antibiotics for sepsis have recently been questioned. Evidence for this mainly comes from observational studies. The only randomized trial on this subject, the Prehospital Antibiotics Against Sepsis (PHANTASi) trial, did not find significant mortality benefits from early antibiotics. That subgroups of patients benefit from this practice is still plausible, given the heterogeneous nature of sepsis. RESEARCH QUESTION: Do subgroups of sepsis patients experience 28-day mortality benefits from early administration of antibiotics in a prehospital setting? And what key traits drive these benefits? STUDY DESIGN AND METHODS: We used machine learning to conduct exploratory partitioning cluster analysis to identify possible subgroups of sepsis patients who may benefit from early antibiotics. We further tested the influence of several traits within these subgroups, using a logistic regression model. RESULTS: We found a significant interaction between age and benefits of early antibiotics (P = .03). When we adjusted for this interaction and several other confounders, there was a significant benefit of early antibiotic treatment (OR, 0.07; 95% CI, 0.01-0.79; P = .03). INTERPRETATION: An interaction between age and benefits of early antibiotics for sepsis has not been reported before. When validated, it can have major implications for clinical practice. This new insight into benefits of early antibiotic treatment for younger sepsis patients may enable more effective care.


Assuntos
Antibacterianos/uso terapêutico , Serviços Médicos de Emergência , Mortalidade , Sepse/tratamento farmacológico , Tempo para o Tratamento , Adolescente , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Ambulâncias , Temperatura Corporal , Análise por Conglomerados , Intervenção Médica Precoce , Serviço Hospitalar de Emergência , Feminino , Humanos , Modelos Logísticos , Aprendizado de Máquina , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Adulto Jovem
19.
J Toxicol ; 2019: 2529569, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31281355

RESUMO

The aim of this study was to investigate the antioxidant potentials, subacute toxicity, and beneficiary effects of methanolic extract of pomelo (Citrus grandis L. Osbeck) in rats. Long Evans rats were divided into four groups of eight animals each. The rats were orally treated with three doses of pomelo (250, 500, and 1000 mg/kg) once daily for 21 days. Pomelo extract contained high concentrations of polyphenols, flavonoids, and ascorbic acid while exhibiting high 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity and ferric reducing antioxidant power values. There was no significant change in the body weight, percentage water content, and relative organ weight at any administered doses. In addition, no significant alterations in the hematological parameters were also observed. However, rats which received 1000 mg/kg dose had a significant reduction in some serum parameters, including alanine transaminase (15.29%), alkaline phosphatase (2.5%), lactate dehydrogenase (15.5%), γ-glutamyltransferase (20%), creatinine (14.47%), urea (18.50%), uric acid (27.14%), total cholesterol (5.78%), triglyceride (21.44%), low-density lipoprotein cholesterol (40.74%), glucose (2.48%), and all atherogenic indices including cardiac risk ratio (24.30%), Castelli's risk index-2 (45.71%), atherogenic coefficient (42%), and atherogenic index of plasma (25%) compared to control. In addition, the highest dose (1000 mg/kg) caused a significant increase in iron (12.07%) and high-density lipoprotein cholesterol (8.87%) levels. Histopathological findings of the vital organs did not indicate any pathological changes indicating that pomelo is nontoxic, safe, and serves as an important source of natural antioxidants. In addition, the fruit extract has the potential to ameliorate hepato- and nephrotoxicities and cardiovascular diseases as well as iron deficiency anemia.

20.
Chem Cent J ; 12(1): 35, 2018 Apr 04.
Artigo em Inglês | MEDLINE | ID: mdl-29619623

RESUMO

An organic compound known as 5-hydroxymethylfurfural (HMF) is formed from reducing sugars in honey and various processed foods in acidic environments when they are heated through the Maillard reaction. In addition to processing, storage conditions affect the formation HMF, and HMF has become a suitable indicator of honey quality. HMF is easily absorbed from food through the gastrointestinal tract and, upon being metabolized into different derivatives, is excreted via urine. In addition to exerting detrimental effects (mutagenic, genotoxic, organotoxic and enzyme inhibitory), HMF, which is converted to a non-excretable, genotoxic compound called 5-sulfoxymethylfurfural, is beneficial to human health by providing antioxidative, anti-allergic, anti-inflammatory, anti-hypoxic, anti-sickling, and anti-hyperuricemic effects. Therefore, HMF is a neo-forming contaminant that draws great attention from scientists. This review compiles updated information regarding HMF formation, detection procedures, mitigation strategies and effects of HMF on honey bees and human health.

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