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1.
Nano Lett ; 24(33): 10016-10023, 2024 Aug 21.
Artigo em Inglês | MEDLINE | ID: mdl-39109676

RESUMO

Food safety is vital to human health, necessitating the development of nondestructive, convenient, and highly sensitive methods for detecting harmful substances. This study integrates cellulose dissolution, aligned regeneration, in situ nanoparticle synthesis, and structural reconstitution to create flexible, transparent, customizable, and nanowrinkled cellulose/Ag nanoparticle membranes (NWCM-Ag). These three-dimensional nanowrinkled structures considerably improve the spatial-electromagnetic-coupling effect of metal nanoparticles on the membrane surface, providing a 2.3 × 108 enhancement factor for the surface-enhanced Raman scattering (SERS) effect for trace detection of pesticides in foods. Notably, the distribution of pesticides in the apple peel and pulp layers is visualized through Raman imaging, confirming that the pesticides penetrate the peel layer into the pulp layer (∼30 µm depth). Thus, the risk of pesticide ingestion from fruits cannot be avoided by simple washing other than peeling. This study provides a new idea for designing nanowrinkled structures and broadening cellulose utilization in food safety.


Assuntos
Celulose , Inocuidade dos Alimentos , Nanopartículas Metálicas , Praguicidas , Análise Espectral Raman , Celulose/química , Praguicidas/análise , Praguicidas/química , Nanopartículas Metálicas/química , Análise Espectral Raman/métodos , Prata/química , Malus/química , Humanos , Frutas/química , Nanotecnologia/métodos , Propriedades de Superfície , Contaminação de Alimentos/análise
2.
Glob Chang Biol ; 30(8): e17470, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39149882

RESUMO

Micro/nanoplastic (MNP) pollution in soil ecosystems has become a growing environmental concern globally. However, the comprehensive impacts of MNPs on soil health have not yet been explored. We conducted a hierarchical meta-analysis of over 5000 observations from 228 articles to assess the broad impacts of MNPs on soil health parameters (represented by 20 indicators relevant to crop growth, animal health, greenhouse gas emissions, microbial diversity, and pollutant transfer) and whether the impacts depended on MNP properties. We found that MNP exposure significantly inhibited crop biomass and germination, and reduced earthworm growth and survival rate. Under MNP exposure, the emissions of soil greenhouse gases (CO2, N2O, and CH4) were significantly increased. MNP exposure caused a decrease in soil bacteria diversity. Importantly, the magnitude of impact of the soil-based parameters was dependent on MNP dose and size; however, there is no significant difference in MNP type (biodegradable and conventional MNPs). Moreover, MNPs significantly reduced As uptake by plants, but promoted plant Cd accumulation. Using an analytical hierarchy process, we quantified the negative impacts of MNP exposure on soil health as a mean value of -10.2% (-17.5% to -2.57%). Overall, this analysis provides new insights for assessing potential risks of MNP pollution to soil ecosystem functions.


Assuntos
Oligoquetos , Microbiologia do Solo , Poluentes do Solo , Solo , Poluentes do Solo/análise , Poluentes do Solo/toxicidade , Poluentes do Solo/efeitos adversos , Animais , Solo/química , Microplásticos/análise , Microplásticos/toxicidade , Gases de Efeito Estufa/análise , Nanopartículas/análise , Produtos Agrícolas/crescimento & desenvolvimento
3.
Br J Clin Pharmacol ; 90(6): 1493-1502, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38500445

RESUMO

AIMS: To investigate the exposure-response (E-R) relationship, including exposure-efficacy and exposure-safety, of ropeginterferon alfa-2b treatment in patients with polycythaemia vera (PV). METHODS: Based on the results of the phase II trial A20-202 regarding ropeginterferon alfa-2b in patients with PV, E-R analyses were performed to evaluate the efficacy and safety of the given dosing regimen. The E-R analyses were based on logistic and linear regression and the relationship between exposure to ropeginterferon alfa-2b and key efficacy and safety variables. The key efficacy variables included complete haematologic response (CHR) and reduction of the driver mutation JAK2V617F. The safety variable was treatment-related adverse events (TRAEs). RESULTS: A clear relationship between the exposure to ropeginterferon alfa-2b and CHR was observed, with an increase in drug exposure resulting in an increased probability of achieving CHR. Similar CHR probabilities were observed in the third and fourth quantiles of the average concentration at Week 24. The results from the exposure-JAK2V617F model indicated that the JAK2V617F allele burden decreased with increasing exposure to ropeginterferon alfa-2b and baseline body surface area. Exposure-safety analysis revealed a risk of AEs associated with transaminase abnormalities, which were not associated with clinical significance. CONCLUSIONS: Our analyses have shown that patients with PV treated with ropeginterferon alfa-2b had an increased probability of achieving CHR and a molecular response with acceptable safety risks at the 250-350-500 µg titration dosing regimen. This study has provided the relevant data for the application of a biologics licence of ropeginterferon alfa-2b for PV treatment in China.


Assuntos
Interferon alfa-2 , Interferon-alfa , Janus Quinase 2 , Policitemia Vera , Polietilenoglicóis , Proteínas Recombinantes , Humanos , Proteínas Recombinantes/administração & dosagem , Proteínas Recombinantes/efeitos adversos , Proteínas Recombinantes/uso terapêutico , Interferon-alfa/administração & dosagem , Interferon-alfa/efeitos adversos , Interferon-alfa/uso terapêutico , Polietilenoglicóis/efeitos adversos , Polietilenoglicóis/administração & dosagem , Interferon alfa-2/administração & dosagem , Interferon alfa-2/efeitos adversos , Policitemia Vera/tratamento farmacológico , Policitemia Vera/genética , Masculino , Feminino , Pessoa de Meia-Idade , Janus Quinase 2/genética , Resultado do Tratamento , Relação Dose-Resposta a Droga , Idoso , Adulto
4.
Toxicol Pathol ; 52(5): 266-283, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-39193778

RESUMO

Knee osteoarthritis (OA) poses a significant health care burden globally, necessitating innovative therapeutic approaches. CCoat, a novel poly(2-[methacryloyloxy]ethyl phosphorylcholine) (pMPC)ylated liposome device, protects the cartilage surface of the joint from mechanical wear through an entropy-favored process. Two preclinical studies were performed to explore the safety of CCoat following repeated intra-articular (IA) injections into the knee joint (i.e., femorotibial joint) in Sprague-Dawley rats. The studies involved 2 or 3 IA injections, at an interval of 2 or 3 weeks, and an observation period of 1 or 13 weeks after the last injection. Assessments included clinical, histopathological, and immunofluorescent evaluations. In study 1, no mortality or abnormal clinical signs occurred. At 1 week post last injection, histopathology revealed minimal vacuolated macrophages beneath the synovial membrane, predominantly M2-like, indicating a nonadverse response. Immunofluorescent staining supported M2-like macrophage predominance. Study 2 confirmed these findings with no systemic effects over 13 weeks. Statistical analyses indicated no significant differences in body weight, clinical pathology, or organ weights compared with controls. Results affirming the safety of pMPCylated liposomes following repeated IA injections in rat. This novel lubricant coating approach shows promise in OA therapy, with this safety assessment supporting its potential clinical application.


Assuntos
Lipossomos , Osteoartrite do Joelho , Ratos Sprague-Dawley , Animais , Injeções Intra-Articulares , Osteoartrite do Joelho/tratamento farmacológico , Ratos , Masculino , Fosforilcolina/análogos & derivados , Fosforilcolina/administração & dosagem , Fosforilcolina/toxicidade , Ácidos Polimetacrílicos/química , Ácidos Polimetacrílicos/toxicidade , Ácidos Polimetacrílicos/administração & dosagem , Modelos Animais de Doenças , Materiais Biocompatíveis/química , Feminino , Articulação do Joelho/efeitos dos fármacos , Articulação do Joelho/patologia
5.
Future Oncol ; 20(3): 145-158, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37609795

RESUMO

Biosimilars can provide choices for patients and may provide cost savings; however, their uptake has been slow in the USA, in part due to limited knowledge. To provide additional confidence in US pegfilgrastim biosimilars, this narrative review compared the safety profiles of biosimilar pegfilgrastims, currently approved or filed for approval in the USA, with the EU- and US-approved reference pegfilgrastims. Headache and bone pain were common to biosimilars and reference products and occurred at a similar incidence. Clinical trial data on the safety profiles of biosimilar pegfilgrastims and reference products have demonstrated similarity and comparability, with no unexpected safety outcomes. Overall, the safety profiles of biosimilar pegfilgrastims and reference pegfilgrastims demonstrated a high degree of similarity and comparability.


Pegfilgrastim is a biologic drug (one made in living cells such as bacteria) that is given to some patients being treated for cancer. Pegfilgrastim is prescribed to reduce a patient's risk of infection due to a weakened immune system caused by various chemotherapy treatment plans. A biosimilar is a type of biologic medicine that is highly similar to a US FDA-approved reference biologic, and is often cheaper, making it more widely available to patients. As of March 2023, there are eight pegfilgrastim biosimilars (six approved and two awaiting approval by the FDA). This review compared the side effects for the reference pegfilgrastim with the biosimilar pegfilgrastims. The side effects in general and the side effects from treatment were similar for the reference pegfilgrastim and for the biosimilar pegfilgrastims, with the most common side effects being headache and bone pain. Serious side effects such as allergic reactions or problems with the spleen were very low and were also similar between the reference pegfilgrastim and the biosimilar pegfilgrastims. These results show that the safety of the biosimilar pegfilgrastims was similar to the reference pegfilgrastim, with no unexpected side effects. With comparable safety to their reference product, biosimilars have the potential to improve patient access to more affordable treatment options.


Assuntos
Medicamentos Biossimilares , Humanos , Medicamentos Biossimilares/efeitos adversos , Filgrastim/efeitos adversos , Polietilenoglicóis/efeitos adversos , Leucócitos
6.
Future Oncol ; : 1-12, 2024 Oct 28.
Artigo em Inglês | MEDLINE | ID: mdl-39466121

RESUMO

WHAT IS THIS SUMMARY ABOUT?: Researchers combined information from three separate phase 1 and 2 clinical trials, including over 400 people who had one of 33 different cancer types and who all received futibatinib in their clinical trial. This type of study is called a pooled analysis. Futibatinib is taken orally (by mouth) as a tablet and works by reducing the activity of a group of proteins called fibroblast growth factor receptors (FGFRs). FGFRs drive the growth of some cancers, especially cancer cells with changes in FGFR genes that make the proteins more active. Researchers wanted to look at how common some side effects were in people treated with futibatinib, how soon the side effects happened after taking futibatinib, and how they could be managed. Researchers also wanted to provide recommendations to other health care professionals on how to manage these side effects in people with cancer. WHAT WERE THE RESULTS?: In this analysis, the researchers focused on side effects that they had seen in previously completed trials of futibatinib. Overall, futibatinib was safe and tolerable. Most people (82%) had a high phosphate level in their blood (hyperphosphatemia), 27% had nail disorders, 27% had liver side effects (changes in liver-related laboratory tests), 19% had a sore mouth (stomatitis), 13% had hand-foot syndrome (palmar-plantar erythrodysesthesia syndrome), 9% had a rash, 8% developed changes in the back of the eye (retinal disorders), and 4% of people developed cataracts. Most side effects were mild/moderate and reversible. The median time it took from starting treatment to experiencing a severe side effect ranged from 9 days (hyperphosphatemia) to 125 days (cataracts). Some side effects tended to occur early, while others developed later. Only 2% of people stopped taking futibatinib due to treatment-related side effects, and futibatinib caused no deaths. WHAT DO THE RESULTS MEAN?: The side effects from taking futibatinib were manageable and similar in people with different types of cancer. To fully understand the safety of futibatinib, researchers will need to look at what side effects are reported in people taking futibatinib over a longer time in the real-world setting (outside of clinical trials).

7.
Br J Anaesth ; 2024 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-39327154

RESUMO

Procedural sedation is practised by a heterogeneous group of practitioners working in a wide array of settings. However, there are currently no accepted standards for the competencies a sedation practitioner should have, the content of sedation training programmes, and guidelines for credentialing. The multidisciplinary International Committee for the Advancement of Procedural Sedation sought to develop a consensus statement on the following: which competencies should medical or dental practitioners have for procedural sedation and how are they obtained, assessed, maintained, and privileged. Using the framework of Competency-Based Medical Education, the practice of procedural sedation was defined as a complex professional task requiring demonstrable integration of different competencies. For each question, the results of a literature review were synthetised into preliminary statements. Following an iterative Delphi review method, final consensus was reached. Using multispeciality consensus, we defined procedural sedation competence by identifying a set of core competencies in the domains of knowledge, skills, and attitudes across physical safety, effectiveness, psychological safety, and deliberate practice. In addition, we present a standardised framework for competency-based training and credentialing of procedural sedation practitioners.

8.
Environ Res ; 241: 117666, 2024 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-37984787

RESUMO

Over the past few years, it has become increasingly evident that microplastic pollutant heavily contaminates water sources, posing a potential threat to both human and wildlife. These plastic pollutants do not get degraded efficiently by natural processes and the existing traditional treatment methods are incapable of fully eradicating them. In this regard, degradation of microplastic contaminants through photocatalytic methods has emerged as a powerful technique. Unfortunately, only a limited number of investigations have been reported in the field of photocatalytic degradation of microplastics. This comprehensive assessment focuses on the detailed analysis of the latest cutting edge engineered technologies aimed at efficiently separating, identifying microplastic contaminants present in food samples and degrading them through photocatalysis. Moreover, detailed information on various instrumental techniques that can be adopted to analyze the isolated micro sized plastic particles has been discussed. The assessment and degradation of these micro contaminants through photocatalytic methods is still in juvenile stage and there are lot of rooms to be explored. The need for profound contemplation on methods to degrade them through photocatalytic approaches as well as their possible health risks to humans motivated us to bring out this review.


Assuntos
Poluentes Ambientais , Poluentes Químicos da Água , Humanos , Microplásticos , Plásticos/análise , Poluentes Químicos da Água/análise , Poluentes Ambientais/análise , Medição de Risco , Monitoramento Ambiental
9.
Environ Res ; 242: 117787, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-38040179

RESUMO

Microplastic (MP) pollution raises urgent concerns about the environmental well-being and the safety of the food supply for humans. Mussels are essential filter-feeding organisms that may be highly susceptible to MPs uptake due to their global distribution and sedentary lifestyle. There is also a knowledge gap regarding MP levels in commercially-farmed and wild-sourced mussels for human consumption, creating gaps in risk identification for food safety. This study aims to fill this gap in understanding by (a) investigating the presence and abundance of MPs in both wild and aquacultured mussels collected from six different stations in the Sea of Marmara, (b) comparing the levels of MPs between aquacultured and wild mussels, and (c) evaluating the potential health risks associated with the consumption of these contaminated mussels. Polymer types were verified by ATR-FTIR (Attenuated Total Reflectance Fourier Transform- Infrared Spectroscopy), and 6 different polymers have been identified. Among the total 753 identified MPs, the majority (79.8%) were fibers, with the predominant size range (42.4%) falling between 0.1 and 0.5 mm. Consuming wild mussels was associated with a 187.6% higher risk of MP intake compared to aquaculture. A consumer can potentially be exposed to 133.11 to 844.86 MP particles when consuming a 100 g serving of mussels, with risks becoming more significant as portion sizes increase, as is the case in some countries where portions reach 225 g. In this study, detailed information is presented on MP pollution in both wild and aquacultured mussels from Sea of Marmara, providing valuable insights for ensuring food safety, effective management and control of MP pollution in this region.


Assuntos
Bivalves , Poluentes Químicos da Água , Animais , Humanos , Microplásticos/toxicidade , Plásticos , Monitoramento Ambiental , Poluentes Químicos da Água/análise
10.
J Clin Periodontol ; 51(7): 915-925, 2024 07.
Artigo em Inglês | MEDLINE | ID: mdl-38508585

RESUMO

AIM: To evaluate the suitability of a Doppler ultrasound probe in detecting the greater palatine artery or its greater branches non-invasively. MATERIALS AND METHODS: The palatal mucosa of 108 participants (median age 34 years, 51 female) was systematically divided into transversal sectors, each aligning with the positions of the upper molars (M), premolars (P) and canine teeth (C), aiming to facilitate precise and consistent localization of the detected palatal blood vessel across different patients. Blood flow of the palatal blood vessels, presumably, was located by scanning the palatal vault bilaterally using an 8-MHz ultrasound probe linked to a transducer. The distance to the corresponding tooth was measured using a millimetre-scale periodontal probe. RESULTS: Within the regions of M2 to P1, the ultrasound transducer gave a delimitable acoustic pulse signal in 80%-98% of all measurements. The measured median distances between the determined position of the artery and the corresponding teeth ranged from 13 to 15 mm, with smaller distances in the anterior region. In several sectors, the distance was significantly higher for men (C: p = .048; P1: p = .041, M1: p < .01; M2: p = .034). CONCLUSIONS: Use of the Doppler ultrasound transducer might be a promising approach to non-invasively detect relevant palatine blood vessels preoperatively. It, therefore, might have the potential to reduce the risk of accidental injury during palatal surgery.


Assuntos
Palato , Ultrassonografia Doppler , Humanos , Estudos Transversais , Masculino , Feminino , Adulto , Ultrassonografia Doppler/métodos , Palato/irrigação sanguínea , Palato/diagnóstico por imagem , Pessoa de Meia-Idade , Estudo de Prova de Conceito , Adulto Jovem
11.
J Thromb Thrombolysis ; 57(4): 730-738, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38526751

RESUMO

Vaccines against SARS-CoV-2 have been recommended across the world, yet no study has investigated whether COVID-19 vaccination influences short-term warfarin anti-coagulation levels. Patients on stable warfarin treatment who received anti-SARS-CoV-2 vaccination were prospectively enrolled and followed up for three months. INR values less than 10 days before vaccination (baseline), 3-5 days (short-term) and 6-14 days (medium-term) after vaccination were recorded as INR0, INR1, and INR2, respectively. The variations of INR values within individuals were compared, and the linear mixed effect model was used to evaluate the variations of INR values at different time points. Logistic regression analysis was performed to determine covariates related to INR variations after COVID-19 vaccination. Vaccination safety was also monitored. There was a significant difference in INR values between INR0 and INR1 (2.15 vs. 2.26, p = 0.003), yet no marked difference was found between INR0 and INR2. The linear mixed effect model also demonstrated that INR variation was significant in short-term but not in medium-term or long-term period after vaccination. Logistic regression analysis showed that no investigated covariates, including age, vaccine dose, genetic polymorphisms of VKORC1 and CYP2C9 etc., were associated with short-term INR variations. Two patients (2.11%) reported gingival hemorrhage in the short-term due to increased INR values. The overall safety of COVID-19 vaccines for patients on warfarin was satisfying. COVID-19 vaccines may significantly influence warfarin anticoagulation levels 3-5 days after vaccination. We recommend patients on warfarin to perform at least one INR monitoring within the first week after COVID-19 vaccination.


Assuntos
Anticoagulantes , Vacinas contra COVID-19 , COVID-19 , Coeficiente Internacional Normatizado , Varfarina , Humanos , Varfarina/uso terapêutico , Varfarina/administração & dosagem , Varfarina/efeitos adversos , Masculino , Feminino , Anticoagulantes/uso terapêutico , Anticoagulantes/efeitos adversos , Anticoagulantes/administração & dosagem , Idoso , Pessoa de Meia-Idade , COVID-19/prevenção & controle , COVID-19/sangue , Vacinas contra COVID-19/efeitos adversos , Vacinas contra COVID-19/administração & dosagem , Estudos Prospectivos , Coagulação Sanguínea/efeitos dos fármacos , Fatores de Tempo , Vacinação , SARS-CoV-2/imunologia , Monitoramento de Medicamentos/métodos
12.
Biofouling ; 40(8): 467-482, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39054784

RESUMO

Understanding factors influencing Listeria monocytogenes biofilms aid in developing more effective elimination/prevention strategies. This study examined the effect of temperature (4 °C, 21 °C, 30 °C), materials (stainless steel 316 L with 2B and 2 R finishes, glass, and polypropylene), and slope (0°/horizontal or 90°/vertical) on mono- and dual-species biofilms using two L. monocytogenes strains and one Pseudomonas aeruginosa strain. All biofilms were grown in 10% TSB for 24 h and analyzed using culture-based methods. Additionally, the architecture of monospecies biofilms was studied using fluorescence microscopy. Overall, P. aeruginosa showed higher biofilm formation potential (6.2 log CFU/cm2) than L. monocytogenes (4.0 log CFU/cm2). Temperature greatly influenced P. aeruginosa and varied for L. monocytogenes. The slope predominantly influenced L. monocytogenes monospecies biofilms, with cell counts increasing by up to 2 log CFU/cm2. Surface material had little impact on biofilm formation. The study highlights the varying effects of different parameters on multispecies biofilms and the importance of surface geometry.


Surface material does not affect L. monocytogenes or P. aeruginosa biofilmsL. monocytogenes produces more biofilm on horizontal surfaces than on vertical surfacesIn dual-species biofilm, L. monocytogenes shows enhanced biofilm productionIncreased temperature often results in enhanced biofilm formation.


Assuntos
Biofilmes , Listeria monocytogenes , Pseudomonas aeruginosa , Temperatura , Biofilmes/crescimento & desenvolvimento , Listeria monocytogenes/fisiologia , Listeria monocytogenes/crescimento & desenvolvimento , Pseudomonas aeruginosa/fisiologia , Aço Inoxidável , Propriedades de Superfície , Vidro , Polipropilenos
13.
Food Microbiol ; 122: 104561, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38839224

RESUMO

The current study aimed to determine if the 3D-printing speed and temperature would impact the transferability of foodborne pathogens from the stainless-steel (SS) food cartridge to the 3D-printed food ink. Staphylococcus aureus and Escherichia coli were inoculated onto the interior surface of the SS food cartridges. Subsequently, a model food ink was extruded with a recommended macronutrient contribution of 55.8, 23.7, and 20.5% of carbohydrates, proteins, and fat, respectively. The impact of 3D-printing temperatures and speeds on transfer rates was analysed using a Two-Way ANOVA. S. aureus was transferred more from the cartridge to the food ink with a population of 3.39, 2.98, and 3.09 log CFU/g compared to 2.03, 2.06, and 2.00 log CFU/g for E. coli at 2000, 3000, and 4000 mm/s printing speed, respectively, at 25 °C. A Kruskal-Wallis Test was employed to investigate the effect of different speeds and temperatures on the transferability of S. aureus and E. coli. Speed was the main factor affecting S. aureus transferability, while temperature (25 and 50 °C) had the greatest impact on E. coli transferability. This research seeks to advance the understanding of 3D-printing parameters in pathogen transferability and help the food industry move towards this technology's quick and safe adoption.


Assuntos
Escherichia coli , Microbiologia de Alimentos , Impressão Tridimensional , Staphylococcus aureus , Temperatura , Staphylococcus aureus/crescimento & desenvolvimento , Escherichia coli/crescimento & desenvolvimento , Aço Inoxidável , Manipulação de Alimentos/instrumentação , Manipulação de Alimentos/métodos , Contaminação de Alimentos/análise , Contagem de Colônia Microbiana
14.
Health Res Policy Syst ; 22(1): 137, 2024 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-39354470

RESUMO

BACKGROUND: The path of a complaint and patient satisfaction with complaint resolution is often dependent on the responses of healthcare professionals (HCPs). It is therefore important to understand the influences shaping HCP behaviour. This systematic review aimed to (1) identify the key actors, behaviours and factors influencing HCPs' responses to complaints, and (2) apply behavioural science frameworks to classify these influences and provide recommendations for more effective complaints handling behaviours. METHODS: A systematic literature review of UK published and unpublished (so-called grey literature) studies was conducted (PROSPERO registration: CRD42022301980). Five electronic databases [Scopus, MEDLINE/Ovid, Embase, Cumulated Index to Nursing and Allied Health Literature (CINAHL) and Health Management Information Consortium (HMIC)] were searched up to September 2021. Eligibility criteria included studies reporting primary data, conducted in secondary and tertiary care, written in English and published between 2001 and 2021 (studies from primary care, mental health, forensic, paediatric or dental care services were excluded). Extracted data included study characteristics, participant quotations from qualitative studies, results from questionnaire and survey studies, case studies reported in commentaries and descriptions, and summaries of results from reports. Data were synthesized narratively using inductive thematic analysis, followed by deductive mapping to the Theoretical Domains Framework (TDF). RESULTS: In all, 22 articles and three reports met the inclusion criteria. A total of 8 actors, 22 behaviours and 24 influences on behaviour were found. Key factors influencing effective handling of complaints included HCPs' knowledge of procedures, communication skills and training, available time and resources, inherent contradictions within the role, role authority, HCPs' beliefs about their ability to handle complaints, beliefs about the value of complaints, managerial and peer support and organizational culture and emotions. Themes mapped onto nine TDF domains: knowledge, skills, environmental context and resources, social/professional role and identity, social influences, beliefs about capability, intentions and beliefs about consequences and emotions. Recommendations were generated using the Behaviour Change Wheel approach. CONCLUSIONS: Through the application of behavioural science, we identified a wide range of individual, social/organizational and environmental influences on complaints handling. Our behavioural analysis informed recommendations for future intervention strategies, with particular emphasis on reframing and building on the positive aspects of complaints as an underutilized source of feedback at an individual and organizational level.


Assuntos
Atitude do Pessoal de Saúde , Pessoal de Saúde , Satisfação do Paciente , Atenção Secundária à Saúde , Humanos , Reino Unido , Pessoal de Saúde/psicologia , Atenção Terciária à Saúde , Comunicação , Relações Profissional-Paciente
15.
Int J Toxicol ; 43(3_suppl): 120S-127S, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38471032

RESUMO

The Expert Panel for Cosmetic Ingredient Safety (Panel) assessed the safety of Polysilicone-11 as used in cosmetic formulations. This ingredient is reported to function as a film former. The Panel considered the available data and concluded that Polysilicone-11 is safe in cosmetics in the present practices of use and concentration described in this safety assessment.


Assuntos
Qualidade de Produtos para o Consumidor , Cosméticos , Cosméticos/toxicidade , Cosméticos/química , Humanos , Animais , Medição de Risco , Testes de Toxicidade , Silicones/toxicidade , Silicones/química
16.
Int J Toxicol ; 43(5): 491-502, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38901831

RESUMO

These toxicity studies aimed to assess the safety and tolerability of a novel intravenous diclofenac sodium (37.5 mg/mL) formulation containing povidone K12 (80 mg/mL) as the key excipient in Wistar rats. This formulation was tested at doses of 3, 7, and 15 mg/kg/day and was administered daily for 28 days by intravenous route. Toxicokinetic estimation revealed a dose-proportional increase in plasma exposure to diclofenac. The formulation was well tolerated in males; however, mortality was observed in females (2/15) at the highest dose (15 mg/kg/day). Adverse gastrointestinal events related to NSAIDS and a few other treatment-related effects on clinical and anatomic pathology were noted at the 15 mg/kg/day dose, which normalized at the end of the 2-week recovery period. In addition, the excipient povidone K12 was present in a higher amount than the approved Inactive Ingredient Database (IID) limit in the proposed novel formulation. It was qualified through a separate 28-day repeated dose toxicity study by intravenous route in Wistar rats. Povidone K12 was found to be well tolerated and safe up to a dose of 165 mg/kg/day. No treatment-related adverse effects were observed in this study. In conclusion, repeated administration of a novel intravenous formulation containing diclofenac sodium was found to be safe up to the dose of 7 mg/kg/day in female rats and 15 mg/kg/day in male rats.


Assuntos
Anti-Inflamatórios não Esteroides , Diclofenaco , Ratos Wistar , Animais , Diclofenaco/toxicidade , Diclofenaco/farmacocinética , Diclofenaco/administração & dosagem , Masculino , Feminino , Anti-Inflamatórios não Esteroides/toxicidade , Anti-Inflamatórios não Esteroides/administração & dosagem , Anti-Inflamatórios não Esteroides/farmacocinética , Ratos , Excipientes/toxicidade , Excipientes/farmacocinética , Excipientes/química , Povidona/toxicidade , Povidona/química , Povidona/farmacocinética , Administração Intravenosa , Relação Dose-Resposta a Droga , Injeções Intravenosas
17.
Mikrochim Acta ; 191(6): 347, 2024 05 28.
Artigo em Inglês | MEDLINE | ID: mdl-38802574

RESUMO

The synthesis of three-dimensional silver nanopopcorns (Ag NPCs) onto a flexible polycarbonate membrane (PCM) for the detection of nitrofurazone (NFZ) on the fish surface by surface-enhanced Raman spectroscopy (SERS) is presented. The proposed flexible Ag-NPCs/PCM SERS substrate exhibits significant Raman signal intensity enhancement with the measured enhancement factor of 2.36 × 106. This is primarily attributed to the hotspots created on Ag NPCs, including numerous nanoscale protrusions and internal crevices distributed across the surface of Ag NPCs. The detection of NFZ by this flexible SERS substrate demonstrates a low limit of detection (LOD) of 3.7 × 10-9 M and uniform and reproducible Raman signal intensities with a relative standard deviation below 8.34%. It also exhibits excellent stability, retaining 70% of its efficacy even after 10 days of storage. Notably, the practical detection of NFZ in tap water, honey water, and fish surfaces achieves LOD values of 1.35 × 10-8 M, 5.76 × 10-7 M, and 3.61 × 10-8 M, respectively,  which highlights its effectiveness across different sample types. The developed Ag-NPCs/PCM SERS substrate presents promising potential for sensitive SERS detection of toxic substances in real-world samples.


Assuntos
Limite de Detecção , Nanopartículas Metálicas , Nitrofurazona , Prata , Análise Espectral Raman , Análise Espectral Raman/métodos , Prata/química , Nitrofurazona/análise , Nitrofurazona/química , Nanopartículas Metálicas/química , Animais , Peixes , Mel/análise , Água Potável/análise , Cimento de Policarboxilato/química , Membranas Artificiais , Poluentes Químicos da Água/análise , Propriedades de Superfície , Contaminação de Alimentos/análise
18.
Int J Toxicol ; 43(4_suppl): 78-107, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39046084

RESUMO

The Expert Panel for Cosmetic Ingredient Safety (Panel) reviewed the safety of 10 polyol phosphates. Some of the possible functions in cosmetics that are reported for this ingredient group are chelating agents, oral care agents, and skin conditioning agents. The Panel reviewed relevant data relating to the safety of these ingredients under the intended conditions of use in cosmetic formulations, and concluded that Sodium Phytate, Phytic Acid, Phytin, and Trisodium Inositol Triphosphate are safe in cosmetics in the present practices of use and concentration described in the safety assessment. The Panel also concluded that the data are insufficient to determine the safety of the following 6 ingredients as used in cosmetics: Disodium Glucose Phosphate, Manganese Fructose Diphosphate, Sodium Mannose Phosphate, Trisodium Fructose Diphosphate, Xylityl Phosphate, and Zinc Fructose Diphosphate.


Assuntos
Qualidade de Produtos para o Consumidor , Cosméticos , Cosméticos/toxicidade , Cosméticos/química , Humanos , Animais , Fosfatos/toxicidade , Fosfatos/química , Polímeros/toxicidade , Polímeros/química , Testes de Toxicidade , Medição de Risco
19.
Int J Toxicol ; 43(4_suppl): 5-41, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39045851

RESUMO

The Expert Panel for Cosmetic Ingredient Safety (Panel) reviewed the safety of 30 vinylpyrrolidone polymers as used in cosmetic products; most of these ingredients have the reported cosmetic function of film former in common. The Panel reviewed data relevant to the safety of these ingredients, and determined that 27 vinylpyrrolidone polymers are safe in cosmetics in the present practices of use and concentration described in the safety assessment. The Panel also concluded that the available data are insufficient to make a determination that 3 vinylpyrrolidone polymers (all urethanes) are safe under the intended conditions of use in cosmetic formulations.


Assuntos
Qualidade de Produtos para o Consumidor , Cosméticos , Polímeros , Pirrolidinonas , Cosméticos/toxicidade , Cosméticos/química , Humanos , Animais , Polímeros/toxicidade , Polímeros/química , Pirrolidinonas/toxicidade , Pirrolidinonas/química , Pirrolidinonas/farmacocinética , Testes de Toxicidade , Medição de Risco
20.
Clin Oral Investig ; 28(11): 603, 2024 Oct 18.
Artigo em Inglês | MEDLINE | ID: mdl-39422752

RESUMO

OBJECTIVES: Not much is known about safety checklists use in dentistry. We aim to examine, assess, and provide a comprehensive understanding of the current knowledge concerning the use of checklists to improve patient safety in dentistry. METHODS: We conducted a comprehensive literature search using Medline and Embase for studies that use or describe the development of dental patient safety checklists. All study designs were included for citations published through December 2023. RESULTS: Following abstract and full-text screening, 27 studies remained for data extraction and analysis. Oral surgery emerged as the main dental specialty where the utilization and evaluation of checklists were primarily concentrated (n = 15). The majority of the included studies described either checklist development, their implementation, or both (n = 18). Only 6 studies assessed the effectiveness of checklists in improving patient safety outcomes. Of the effectiveness studies, five found a decrease in incidents and dental adverse events, along with an improvement in patient care and safety, associated with the use of checklists. CONCLUSIONS: This scoping review highlights the limited current knowledge regarding checklist use and effectiveness in reducing adverse events across dental practices; it demonstrates the need on how to best guide the profession towards implementing this important evidence-based patient safety tool. CLINICAL RELEVANCE: Checklists are effective tools to improve patient safety and have become integral to medical practice. Dentistry can also benefit from these tools to improve patient safety.


Assuntos
Lista de Checagem , Odontologia , Segurança do Paciente , Humanos , Odontologia/normas
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