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1.
Br J Surg ; 110(7): 818-830, 2023 06 12.
Artigo em Inglês | MEDLINE | ID: mdl-37131298

RESUMO

BACKGROUND: Skin metastases are an important co-morbidity in melanoma. Despite broad adoption, electrochemotherapy implementation is hindered by a lack of treatment indications, uncertainty regarding procedural aspects, and the absence of quality indicators. An expert consensus may harmonize the approach among centres and facilitate comparison with other therapies. METHODS: An interdisciplinary panel was recruited for a three-round e-Delphi survey. A literature-based 113-item questionnaire was proposed to 160 professionals from 53 European centres. Participants rated each item for relevance and degree of agreement on a five-point Likert scale, and received anonymous controlled feedback to allow revision. The items that reached concordant agreement in two successive iterations were included in the final consensus list. In the third round, quality indicator benchmarks were defined using a real-time Delphi method. RESULTS: The initial working group included 122 respondents, of whom 100 (82 per cent) completed the first round, thus qualifying for inclusion in the expert panel (49 surgeons, 29 dermatologists, 15 medical oncologists, three radiotherapists, two nurse specialists, two clinician scientists). The completion rate was 97 per cent (97 of 100) and 93 per cent (90 of 97) in the second and third rounds respectively. The final consensus list included 54 statements with benchmarks (treatment indications, (37); procedural aspects, (1); quality indicators, (16)). CONCLUSION: An expert panel achieved consensus on the use of electrochemotherapy in melanoma, with a core set of statements providing general direction to electrochemotherapy users to refine indications, align clinical practices, and promote quality assurance programmes and local audits. The residual controversial topics set future research priorities to improve patient care.


Electrochemotherapy is an effective locoregional therapy for skin metastases from melanoma, a problem faced by almost half of patients with metastatic disease. The lack of comparative studies and the heterogeneity of its clinical application among centres make it challenging to support consistent, evidence-based recommendations. To address this unmet need, a three-round online survey was conducted to establish a consensus on treatment indications, standard operating procedures, and quality indicators. In the survey, a panel of 100 European melanoma experts agreed on 56 statements that can be used to improve patient selection, homogenize treatment application, and monitor outcomes.


Assuntos
Eletroquimioterapia , Melanoma , Humanos , Indicadores de Qualidade em Assistência à Saúde , Consenso , Benchmarking , Técnica Delphi
2.
Mol Reprod Dev ; 90(12): 835-848, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37632839

RESUMO

High rates of early pregnancy loss are a critical issue in dairy herds, particularly in seasonal, grazing systems. Components of the uterine luminal fluid (ULF), on which the early embryo depends for sustenance and growth, partly determine early pregnancy losses. Here, changes in ULF from early to mid-postpartum in crossbred dairy cows were explored, linking them with divergent embryo development. For this, the uteri of 87 cows at Day 7 of pregnancy at first and third estrus postpartum were flushed to collect ULF. Eighteen metabolites (chiefly organic acids and sugars) significantly varied in abundance across postpartum, indicating a molecular signature of physiological recovery consistent of the upregulation of pyrimidine metabolism and glycerophospholipid metabolism, and downregulation of pentose phosphate and taurine metabolism pathways. Joint pathway analysis of metabolomics data and a previously generated proteomics data set on the same ULF samples suggests key links between postpartum recovery and subsequent successful embryo development. These include upregulation of VEGFA and downregulation of metabolism, NRF2, T-cell receptor, which appear to improve the ULF's capacity of sustaining normal embryo development, and a putative osmo-protectant role of beta-alanine. These relationships should be further investigated to develop tools to detect and reduce early pregnancy loss in dairy cows.


Assuntos
Aborto Espontâneo , Lactação , Gravidez , Feminino , Humanos , Bovinos , Animais , Fertilidade/fisiologia , Período Pós-Parto , Útero/fisiologia
3.
Eur J Immunol ; 51(3): 544-556, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33450785

RESUMO

Cytotoxic T-lymphocyte associated protein-4 (CTLA-4) and the Programmed Death Receptor 1 (PD-1) are immune checkpoint molecules that are well-established targets of antibody immunotherapies for the management of malignant melanoma. The monoclonal antibodies, Ipilimumab, Pembrolizumab, and Nivolumab, designed to interfere with T cell inhibitory signals to activate immune responses against tumors, were originally approved as monotherapy. Treatment with a combination of immune checkpoint inhibitors may improve outcomes compared to monotherapy in certain patient groups and these clinical benefits may be derived from unique immune mechanisms of action. However, treatment with checkpoint inhibitor combinations also present significant clinical challenges and increased rates of immune-related adverse events. In this review, we discuss the potential mechanisms attributed to single and combined checkpoint inhibitor immunotherapies and clinical experience with their use.


Assuntos
Anticorpos Monoclonais/imunologia , Antígeno CTLA-4/imunologia , Inibidores de Checkpoint Imunológico/imunologia , Melanoma/imunologia , Melanoma/terapia , Receptor de Morte Celular Programada 1/imunologia , Neoplasias Cutâneas/imunologia , Neoplasias Cutâneas/terapia , Animais , Humanos , Imunoterapia/métodos , Melanoma/metabolismo , Neoplasias Cutâneas/metabolismo , Melanoma Maligno Cutâneo
4.
BMC Med Educ ; 22(1): 537, 2022 Jul 11.
Artigo em Inglês | MEDLINE | ID: mdl-35818052

RESUMO

BACKGROUND: In-situ simulation is increasingly employed in healthcare settings to support learning and improve patient, staff and organisational outcomes. It can help participants to problem solve within real, dynamic and familiar clinical settings, develop effective multidisciplinary team working and facilitates learning into practice. There is nevertheless a reported lack of a standardised and cohesive approach across healthcare organisations. The aim of this systematic mapping review was to explore and map the current evidence base for in-situ interventions, identify gaps in the literature and inform future research and evaluation questions. METHODS: A systematic mapping review of published in-situ simulation literature was conducted. Searches were conducted on MEDLINE, EMBASE, AMED, PsycINFO, CINAHL, MIDIRS and ProQuest databases to identify all relevant literature from inception to October 2020. Relevant papers were retrieved, reviewed and extracted data were organised into broad themes. RESULTS: Sixty-nine papers were included in the mapping review. In-situ simulation is used 1) as an assessment tool; 2) to assess and promote system readiness and safety cultures; 3) to improve clinical skills and patient outcomes; 4) to improve non-technical skills (NTS), knowledge and confidence. Most studies included were observational and assessed individual, team or departmental performance against clinical standards. There was considerable variation in assessment methods, length of study and the frequency of interventions. CONCLUSIONS: This mapping highlights various in-situ simulation approaches designed to address a range of objectives in healthcare settings; most studies report in-situ simulation to be feasible and beneficial in addressing various learning and improvement objectives. There is a lack of consensus for implementing and evaluating in-situ simulation and further studies are required to identify potential benefits and impacts on patient outcomes. In-situ simulation studies need to include detailed demographic and contextual data to consider transferability across care settings and teams and to assess possible confounding factors. Valid and reliable data collection tools should be developed to capture the complexity of team and individual performance in real settings. Research should focus on identifying the optimal frequency and length of in-situ simulations to improve outcomes and maximize participant experience.


Assuntos
Competência Clínica , Atenção à Saúde , Humanos , Aprendizagem
5.
BMC Med Educ ; 22(1): 479, 2022 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-35725432

RESUMO

BACKGROUND: In-Situ Simulation (ISS) enables teams to rehearse and review practice in the clinical environment to facilitate knowledge transition, reflection and safe learning. There is increasing use of ISS in healthcare organisations for which patient safety and quality improvement are key drivers. However, the effectiveness of ISS interventions has not yet been fully demonstrated and requires further study to maximise impact. Cohesive programmatic implementation is lacking and efforts to standardise ISS terms and concepts, strengthen the evidence base and develop an integrated model of learning is required. The aim of this study was to explore the current evidence, theories and concepts associated with ISS across all areas of healthcare and develop a conceptual model to inform future ISS research and best practice guidance. METHODS: A scoping review was undertaken with stakeholder feedback to develop a conceptual model for ISS. Medline, OpenGrey and Web of Science were searched in September 2018 and updated in December 2020. Data from the included scoping review studies were analysed descriptively and organised into categories based on the different motivations, concepts and theoretical approaches for ISS. Categories and concepts were further refined through accessing stakeholder feedback. RESULTS: Thirty-eight papers were included in the scoping review. Papers reported the development and evaluation of ISS interventions. Stakeholder groups highlighted situations where ISS could be suitable to improve care and outcomes and identified contextual and practical factors for implementation. A conceptual model of ISS was developed which was organised into four themes: 1. To understand and explore why systematic events occur in complex settings; 2.To design and test new clinical spaces, equipment, information technologies and procedures; 3. To practice and develop capability in individual and team performance; 4. To assess competency in complex clinical settings. CONCLUSIONS: ISS presents a promising approach to improve individual and team capabilities and system performance and address the 'practice-theory gap'. However, there are limitations associated with ISS such as the impact on the clinical setting and service provision, the reliance of having an open learning culture and availability of relevant expertise. ISS should be introduced with due consideration of the specific objectives and learning needs it is proposed to address. Effectiveness of ISS has not yet been established and further research is required to evaluate and disseminate the findings of ISS interventions.


Assuntos
Atenção à Saúde , Aprendizagem , Simulação por Computador , Humanos
6.
Molecules ; 27(19)2022 Oct 06.
Artigo em Inglês | MEDLINE | ID: mdl-36235182

RESUMO

Aloe barbadensis Mill. (Aloe) is used for diverse therapeutic properties including immunomodulation. However, owing to the compositionally complex nature of Aloe, bioactive component(s) responsible for its beneficial properties, though thought to be attributed to polysaccharides (acemannan), remain unknown. We therefore aimed to determine the metabolite composition of various commercial Aloe extracts and assess their effects on human blood T cell activity in vitro. Peripheral blood mononuclear cells (PBMC) from healthy donors were stimulated polyclonally in presence or absence of various Aloe extracts. T cell phenotype and proliferation were investigated by flow cytometry. Aloe extracts were analyzed using targeted 1H-NMR spectroscopy for standard phytochemical quality characterization and untargeted gas chromatography mass spectrometry (GC-MS) for metabolite profiling. Aloe extracts differing in their standard phytochemical composition had varying effects on T cell activation, proliferation, apoptosis, and cell-death in vitro, although this was not related to the acemannan content. Furthermore, each Aloe extract had its own distinct metabolite profile, where extracts rich in diverse sugar and sugar-derivatives were associated with reduced T cell activity. Our results demonstrate that all commercial Aloe extracts are unique with distinct metabolite profiles, which lead to differential effects on T cell activity in vitro, independent of the acemannan content.


Assuntos
Aloe , Aloe/química , Humanos , Leucócitos Mononucleares/metabolismo , Extratos Vegetais/química , Polissacarídeos/metabolismo , Açúcares/metabolismo , Linfócitos T/metabolismo
7.
Int J Cosmet Sci ; 44(6): 672-684, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-35924329

RESUMO

OBJECTIVE: Scalp hair is among the most exposed parts of the human body, yet the impact of visible and UV light on hair lipids, an important structural component of hair, is poorly researched. We have used lipidomics, a broad-based approach to measure lipids in samples, which has hitherto not been applied to UV-exposed hair in the published literature, and could allow for a wider understanding of how UV light impacts on specific hair lipids. METHODS: Mixed blonde Caucasian hair switches were divided into two groups of five, with half of the hair switches exposed to UV and visible light mimicking normal daytime exposure and half left unexposed. LC-MS lipidomics was used to profile the lipids in the hair samples. RESULTS: A total of 791 lipids and 32 lipid classes with tentative identifications were detected in the hair samples. Nineteen lipid classes and 397 lipids differed between UV-treated and non-treated hair. The main lipid classes that differed were vitamin A fatty acid esters, sterol esters, several ceramides, mono-, di- and triglycerides, phosphatidylethanolamines (all decreased in UV-exposed hair) and bismonoacylglycerolphosphates, acylcarnitines and acylglycines (all increased in UV-exposed hair). Most detected lipids were decreased in UV-exposed hair, supporting earlier work that has found that UV exposure causes oxidation of lipids which would result in a decrease in most lipid classes. CONCLUSION: Light exposure to hair has a widespread impact on the hair lipidome. This study also adds to the emerging literature on the hair lipidome, broadening the range of lipid classes reported in hair.


OBJECTIF: Le cuir chevelu est l'une des parties les plus exposées de l'organisme. Cependant, l'impact de la lumière visible et des UV sur les lipides capillaires, un composant structurel important des cheveux, reste mal étudié. Nous avons utilisé la lipidomique, une approche large pour mesurer les lipides présents dans les échantillons de cheveux, qui n'a jusqu'ici pas été appliquée aux cheveux exposés aux UV dans la littérature publiée. Cette approche pourrait permettre de mieux comprendre l'impact de la lumière UV sur des lipides spécifiques des cheveux. MÉTHODES: Les mèches de cheveux caucasiens blonds mélangés ont été divisées en deux groupes de cinq, la moitié des mèches de cheveux étant exposées aux UV et à une lumière visible imitant l'exposition diurne normale tandis que l'autre moitié est restée non exposée. Le profil lipidique des échantillons de cheveux a été établi grâce à la lipidomique de la LC-MS. RÉSULTATS: Au total, 791 lipides et 32 classes de lipides avec des identifications provisoires ont été détectés dans les échantillons de cheveux. Entre les cheveux traités par UV et les cheveux non traités, dix-neuf classes de lipides et 397 lipides se sont avérés différents. Les principales classes de lipides qui différaient étaient les esters d'acides gras de la vitamine A, les esters de stérols, plusieurs céramides, les monoglycérides, diglycérides et triglycérides, les phosphatidyléthanolamines (tous diminués dans les cheveux exposés aux UV) et les bismonoacylglycérolphosphates, acylcarnitines et acylglycines (tous augmentés dans les cheveux exposés aux UV). La plupart des lipides détectés dans les cheveux exposés aux UV n'étaient présents qu'à taux réduit, soit un résultat cohérent avec une étude antérieure ayant montré que l'exposition aux UV provoque l'oxydation des lipides, ce qui entraînerait une diminution de la plupart des classes de lipides. CONCLUSION: L'exposition des cheveux à la lumière entraîne un impact généralisé sur leur lipidome. Cette étude vient également compléter la littérature émergente sur le lipidome capillaire, élargissant ainsi la gamme de classes lipidiques rapportées dans les cheveux.


Assuntos
Lipidômica , Raios Ultravioleta , Humanos , Lipídeos/química , Cromatografia Líquida , Cabelo
8.
Evid Based Dent ; 2022 Mar 07.
Artigo em Inglês | MEDLINE | ID: mdl-35256757

RESUMO

Aims/objectives Tobacco and alcohol are recognised as the major modifiable risk factors for oral cancer, the incidence of which is rising globally and predicted to increase. This paper aimed to: 1) appraise and synthesise best practice evidence for assessing the major behavioural risk factors for oral cancer and delivering behaviour change interventions (for example, advice, counselling, signposting/referral to preventive services); and 2) assess appropriateness for implementation by dental professionals in primary care.Methods A systematic overview was undertaken of systematic reviews and international clinical guidelines. This involved: systematically searching and collating the international literature on assessing oral cancer risk and delivering preventive interventions within primary care; quality appraising and assessing the risk of bias using validated tools; synthesising the evidence for best practice; and assessing application of key findings to the dental setting.Results and conclusions There is clear evidence for the effectiveness of a 'brief', in-person, motivational intervention for sustained tobacco abstinence or reduced alcohol consumption, following risk factor assessment. Evidence for combined behavioural interventions is lacking. There is no firm conclusion with regards to optimal duration of brief interventions (range 5-20 minutes). For tobacco users, longer (10-20 minutes) and intensive (more than 20 minutes, with follow-up visits) interventions are more effective in increasing quit rates compared to no intervention; very brief (less than five minutes) interventions in a single session show comparable effectiveness to the longer/more intensive interventions. For alcohol users, 10-15-minute multi-contact interventions were most effective, compared to no intervention or very brief (less than five minutes) intervention or intensive intervention; brief interventions of five-minute duration were equally effective. There is limited direct evidence from the dental practice setting (one high-quality systematic review relating to tobacco prevention and none relating to alcohol). Thus, very brief, or brief advice of up to five minutes, should be trialled for tobacco and alcohol respectively in a dental practice setting, after risk assessment tailored to patient motivational status. Exploring delivery by the dental team is supported, as effectiveness was generally independent of primary care provider.

9.
Gastroenterology ; 158(1): 151-159.e3, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31560892

RESUMO

BACKGROUND & AIMS: Celiac disease can develop at any age, but outcomes of adults with positive results from serologic tests for tissue transglutaminase antibodies (tTGA) without endoscopic determination of celiac disease (called celiac autoimmunity) have not been thoroughly evaluated. We investigated the proportion of adults with celiac autoimmunity at a community medical center and their progression to celiac disease. METHODS: We analyzed waste blood samples from a community clinic from 15,551 adults for tTGA and, if titer results were above 2 U/mL, for endomysial antibody. The blood samples had been collected at 2 time points (median interval, 8.8 years) from 2006 through 2017. We collected data from the clinic on diagnoses of celiac disease based on duodenal biopsy analysis. RESULTS: Of the serum samples collected at the first time point, 15,398 had negative results for tTGA, and 153 had positive results for tTGA (>4 U/mL). Based on medical records, 6 individuals received a diagnosis of celiac disease, for a cumulative incidence of celiac disease diagnosis of 0.06% (95% confidence interval, 0.01-0.11). Forty-nine (0.32%) individuals with a negative result from the first serologic test for tTGA had a positive result from the second test. Among the 153 adults who were tTGA positive at the first time point, 31 (20%) had a subsequent diagnosis of celiac disease, 81 (53%) remained positive for tTGA without a clinical diagnosis of celiac disease, and 41 (27%) had negative test results for tTGA at the second time point. Higher initial tTGA titers, female sex, and a history of hypothyroidism and autoimmune disease were associated with increased risks of subsequent diagnosis of celiac disease. Interestingly, adults whose first blood sample had a positive test result but second blood sample had a negative result for tTGA were older, had lower-than-average initial tTGA titer results, and had a higher mean body mass index than adults whose blood samples were positive for tTGA at both time points and adults later diagnosed with celiac disease. CONCLUSIONS: In an analysis of serum samples collected from a community clinic an average of 8.8 years apart, we found that fewer than 1% of adults with negative results from an initial test for tTGA have a positive result on a second test. Of adults with positive results from the test for tTGA, only 20% are later diagnosed with celiac disease; the remaining individuals maintain persistent increases in tTGA without diagnoses of celiac disease or have negative results from second tests.


Assuntos
Autoanticorpos/sangue , Autoimunidade , Doença Celíaca/epidemiologia , Centros Comunitários de Saúde/estatística & dados numéricos , Proteínas de Ligação ao GTP/imunologia , Transglutaminases/imunologia , Adulto , Autoanticorpos/imunologia , Biópsia , Doença Celíaca/diagnóstico , Doença Celíaca/imunologia , Progressão da Doença , Feminino , Seguimentos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Minnesota/epidemiologia , Estudos Prospectivos , Proteína 2 Glutamina gama-Glutamiltransferase , Estudos Soroepidemiológicos
10.
Health Expect ; 24(2): 700-708, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33606905

RESUMO

BACKGROUND: The oral health promotion sessions for young children and parents in a clinical setting pose challenges to the dental team. AIM: To apply PaeD-TrICS (Paediatric dental triadic interaction coding scheme) to investigate the interaction of child, parent and dental nurse and determine the effect of nurse and parental behaviours on child participation within an oral health promotion session. METHOD: A video observational study was applied. The sample consisted of a dental nurse and 22 children aged 2-5 years in a general dental practice in Scotland. Behaviours were catalogued with time stamps using PaeD-TrICS. Analysis of behavioural sequences with child participation as the dependent variable was conducted using multilevel modelling. RESULTS: Children varied significantly in their participation rate. The statistical model explained 28% of the variance. The older the child and longer consultations significantly increased child participation. Both nurse and parental behaviour had immediate influence on child participation. Parental facilitation had a strong moderating effect on the influence of the nurse on child participation. CONCLUSIONS: Child participation was dependent on nurse and parent encouragement signalling an important triadic communication process. The coding scheme and analysis illustrates an important tool to investigate these advisory sessions designed for delivering tailored messages to young children and parents. PATIENT OR PUBLIC CONTRIBUTION: The dental staff, child patients and their parents were involved closely in the conduct and procedures of the present study.


Assuntos
Promoção da Saúde , Saúde Bucal , Criança , Pré-Escolar , Comunicação , Humanos , Pais , Encaminhamento e Consulta
11.
Int J Qual Health Care ; 33(Supplement_1): 25-30, 2021 Jan 12.
Artigo em Inglês | MEDLINE | ID: mdl-33432982

RESUMO

WHY IS THE AREA IMPORTANT?: A sub-group of rare but serious patient safety incidents, known as 'never events,' is judged to be 'avoidable.' There is growing interest in this concept in international care settings, including UK primary care. However, issues have been raised regarding the well-intentioned coupling of 'preventable harm' with zero tolerance 'never events,' especially around the lack of evidence for such harm ever being totally preventable. WHAT IS ALREADY KNOWN AND GAPS IN KNOWLEDGE?: We consider whether the ideal of reducing preventable harm to 'never' is better for patient safety than, for example, the goal of managing risk materializing into harm to 'as low as reasonably practicable,' which is well-established in other complex socio-technical systems and is demonstrably achievable.We reflect on the 'never event' concept in the primary care context specifically, although the issues and the polarized opinion highlighted are widely applicable. Recent developments to validate primary care 'never event' lists are summarized and alternative safety management strategies considered, e.g. Safety-I and Safety-II. FUTURE AREAS FOR ADVANCING RESEARCH AND PRACTICE: Despite their rarity, if there is to be a policy focus on 'never events,' then specialist training for key workforce members is necessary to enable examination of the complex system interactions and design issues, which contribute to such events. The 'never event' term is well intentioned but largely aspirational-however, it is important to question prevailing assumptions about how patient safety can be understood and improved by offering alternative ways of thinking about related complexities.


Assuntos
Erros Médicos , Gestão da Segurança , Atenção à Saúde , Humanos , Erros Médicos/prevenção & controle , Segurança do Paciente , Gestão de Riscos
12.
N Engl J Med ; 376(23): 2211-2222, 2017 06 08.
Artigo em Inglês | MEDLINE | ID: mdl-28591523

RESUMO

BACKGROUND: Sentinel-lymph-node biopsy is associated with increased melanoma-specific survival (i.e., survival until death from melanoma) among patients with node-positive intermediate-thickness melanomas (1.2 to 3.5 mm). The value of completion lymph-node dissection for patients with sentinel-node metastases is not clear. METHODS: In an international trial, we randomly assigned patients with sentinel-node metastases detected by means of standard pathological assessment or a multimarker molecular assay to immediate completion lymph-node dissection (dissection group) or nodal observation with ultrasonography (observation group). The primary end point was melanoma-specific survival. Secondary end points included disease-free survival and the cumulative rate of nonsentinel-node metastasis. RESULTS: Immediate completion lymph-node dissection was not associated with increased melanoma-specific survival among 1934 patients with data that could be evaluated in an intention-to-treat analysis or among 1755 patients in the per-protocol analysis. In the per-protocol analysis, the mean (±SE) 3-year rate of melanoma-specific survival was similar in the dissection group and the observation group (86±1.3% and 86±1.2%, respectively; P=0.42 by the log-rank test) at a median follow-up of 43 months. The rate of disease-free survival was slightly higher in the dissection group than in the observation group (68±1.7% and 63±1.7%, respectively; P=0.05 by the log-rank test) at 3 years, based on an increased rate of disease control in the regional nodes at 3 years (92±1.0% vs. 77±1.5%; P<0.001 by the log-rank test); these results must be interpreted with caution. Nonsentinel-node metastases, identified in 11.5% of the patients in the dissection group, were a strong, independent prognostic factor for recurrence (hazard ratio, 1.78; P=0.005). Lymphedema was observed in 24.1% of the patients in the dissection group and in 6.3% of those in the observation group. CONCLUSIONS: Immediate completion lymph-node dissection increased the rate of regional disease control and provided prognostic information but did not increase melanoma-specific survival among patients with melanoma and sentinel-node metastases. (Funded by the National Cancer Institute and others; MSLT-II ClinicalTrials.gov number, NCT00297895 .).


Assuntos
Excisão de Linfonodo , Melanoma/secundário , Biópsia de Linfonodo Sentinela , Linfonodo Sentinela/cirurgia , Conduta Expectante , Adulto , Idoso , Intervalo Livre de Doença , Feminino , Humanos , Análise de Intenção de Tratamento , Excisão de Linfonodo/efeitos adversos , Linfonodos/diagnóstico por imagem , Linfonodos/patologia , Metástase Linfática/diagnóstico , Linfedema/etiologia , Masculino , Melanoma/mortalidade , Melanoma/patologia , Melanoma/cirurgia , Pessoa de Meia-Idade , Estadiamento de Neoplasias/métodos , Complicações Pós-Operatórias , Prognóstico , Modelos de Riscos Proporcionais , Linfonodo Sentinela/patologia , Biópsia de Linfonodo Sentinela/efeitos adversos , Análise de Sobrevida , Ultrassonografia , Adulto Jovem
14.
Gut ; 68(1): 83-93, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-29097438

RESUMO

OBJECTIVE: To investigate whether a whole grain diet alters the gut microbiome and insulin sensitivity, as well as biomarkers of metabolic health and gut functionality. DESIGN: 60 Danish adults at risk of developing metabolic syndrome were included in a randomised cross-over trial with two 8-week dietary intervention periods comprising whole grain diet and refined grain diet, separated by a washout period of ≥6 weeks. The response to the interventions on the gut microbiome composition and insulin sensitivity as well on measures of glucose and lipid metabolism, gut functionality, inflammatory markers, anthropometry and urine metabolomics were assessed. RESULTS: 50 participants completed both periods with a whole grain intake of 179±50 g/day and 13±10 g/day in the whole grain and refined grain period, respectively. Compliance was confirmed by a difference in plasma alkylresorcinols (p<0.0001). Compared with refined grain, whole grain did not significantly alter glucose homeostasis and did not induce major changes in the faecal microbiome. Also, breath hydrogen levels, plasma short-chain fatty acids, intestinal integrity and intestinal transit time were not affected. The whole grain diet did, however, compared with the refined grain diet, decrease body weight (p<0.0001), serum inflammatory markers, interleukin (IL)-6 (p=0.009) and C-reactive protein (p=0.003). The reduction in body weight was consistent with a reduction in energy intake, and IL-6 reduction was associated with the amount of whole grain consumed, in particular with intake of rye. CONCLUSION: Compared with refined grain diet, whole grain diet did not alter insulin sensitivity and gut microbiome but reduced body weight and systemic low-grade inflammation. TRIAL REGISTRATION NUMBER: NCT01731366; Results.


Assuntos
Microbioma Gastrointestinal , Inflamação/sangue , Redução de Peso , Grãos Integrais , Adulto , Idoso , Glicemia/metabolismo , Estudos Cross-Over , Dinamarca , Dieta , Ingestão de Energia , Fezes/microbiologia , Feminino , Humanos , Inflamação/dietoterapia , Resistência à Insulina , Interleucina-6/sangue , Lipídeos/sangue , Masculino , Metabolômica , Pessoa de Meia-Idade
15.
Eur J Nutr ; 58(2): 853-864, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-29796932

RESUMO

PURPOSE: To investigate the effects of eating wholegrain rye bread with high or low amounts of phytate on iron status in women under free-living conditions. METHODS: In this 12-week, randomized, parallel-design intervention study, 102 females were allocated into two groups, a high-phytate-bread group or a low-phytate-bread group. These two groups were administered: 200 g of blanched wholegrain rye bread/day, or 200 g dephytinized wholegrain rye bread/day. The bread was administered in addition to their habitual daily diet. Iron status biomarkers and plasma alkylresorcinols were analyzed at baseline and post-intervention. RESULTS: Fifty-five females completed the study. There was a significant difference in change over time in total body iron stores between the two groups (p < 0.035). In the low-phytate bread group (n = 24) there were significant within-group decreases in both ferritin (mean 12%; from 32 ± 7 to 27 ± 6 µg/L, geometric mean ± SEM, p < 0.018) and total body iron (mean 12%; from 6.9 ± 1.4 to 5.4 ± 1.1 mg/kg, p < 0.035). Plasma alkylresorcinols indicated that most subjects complied with the intervention CONCLUSIONS: In Swedish females of reproductive age, no statistically significant difference in iron status was detected after 12 weeks of high-phytate wholegrain bread consumption. However, consumption of low-phytate wholegrain bread for 12 weeks resulted in a reduction of markers of iron status. Although single-meal studies clearly show an increase in iron bioavailability from dephytinization of cereals, medium-term consumption of reduced phytate bread under free-living conditions suggests that this strategy does not work to improve iron status in healthy women of reproductive age.


Assuntos
Pão/estatística & dados numéricos , Dieta/métodos , Ferro/sangue , Ácido Fítico/administração & dosagem , Ácido Fítico/sangue , Grãos Integrais/metabolismo , Adolescente , Adulto , Método Duplo-Cego , Feminino , Humanos , Ácido Fítico/farmacologia , Valores de Referência , Suécia , Adulto Jovem
16.
Rheumatol Int ; 39(9): 1585-1594, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31327051

RESUMO

Fatigue is described as a dominant and disturbing symptom of rheumatoid arthritis (RA) regardless of the advances in pharmacological treatment. Fatigue is also found to correlate with depression. The objective was to evaluate the impact of moderate-to-high intensity, aerobic and resistance exercise with person-centered guidance on fatigue, anxiety and depression, in older adults with RA. Comparisons were made between older adults (> 65 years) with RA taking part in a 20-week moderate-to-high intensity exercise at a gym (n = 36) or in home-based exercise of light intensity (n = 38). Assessments were performed at baseline, at 20 weeks, and at 52 weeks. Outcomes were differences in Multidimensional Fatigue Inventory (MFI-20), Visual Analog Scale Fatigue (VAS fatigue), and Hospital Anxiety and Depression Scale (HADS). Analysis of metabolomics was also performed. The subscales "physical fatigue" and "mental fatigue" in MFI-20 and symptoms of depression using HADS depression scale improved significantly at week 20 in the exercise group compared with the control group. Exercise did not influence global fatigue rated by VAS or subscales "reduced motivation", "reduced activity" and "general fatigue" in MFI-20. No significant change was found on the anxiety index of HADS. The improvements in physical fatigue were associated with changes in the metabolism of lipids, bile acids, the urea cycle and several sugars. Moderate-to-high intensity exercise with person-centered guidance decreased fatigue and improved symptoms of depression and were accompanied by metabolic changes in older adults with RA.


Assuntos
Artrite Reumatoide/terapia , Depressão/terapia , Terapia por Exercício/métodos , Tolerância ao Exercício , Fadiga/terapia , Serviços de Assistência Domiciliar , Assistência Centrada no Paciente/métodos , Idoso , Artrite Reumatoide/sangue , Artrite Reumatoide/fisiopatologia , Artrite Reumatoide/psicologia , Biomarcadores/sangue , Depressão/sangue , Depressão/fisiopatologia , Depressão/psicologia , Metabolismo Energético , Terapia por Exercício/efeitos adversos , Fadiga/sangue , Fadiga/fisiopatologia , Fadiga/psicologia , Feminino , Nível de Saúde , Humanos , Masculino , Saúde Mental , Recuperação de Função Fisiológica , Suécia , Fatores de Tempo , Resultado do Tratamento
17.
Int J Mol Sci ; 20(23)2019 Nov 24.
Artigo em Inglês | MEDLINE | ID: mdl-31771283

RESUMO

Excess energy intake can trigger an uncontrolled inflammatory response, leading to systemic low-grade inflammation and metabolic disturbances that are hypothesised to contribute to cardiovascular disease and type 2 diabetes. The long chain n-3 polyunsaturated fatty acids (LC n-3 PUFAs) eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are suggested to mitigate this inflammatory response, but the mechanisms are unclear, especially at the tissue level. Adipose tissues, the first tissues to give an inflammatory response, may be an important target site of action for EPA and DHA. To evaluate the effects of EPA and DHA in white and brown adipose tissues, we fed male C57Bl/6J mice either a high fat diet (HFD) with 5% corn oil, an HFD with 40% of the corn oil substituted for purified EPA and DHA triglycerides (HFD-ED), or normal chow, for 8 weeks. Fatty acid profiling and transcriptomics were used to study how EPA and DHA affect retroperitoneal white and brown adipose tissues. HFD-ED fed mice showed reduced lipid accumulation and levels of the pro-inflammatory fatty acid arachidonic acid in both white and brown adipose tissues, compared with HFD-corn oil fed animals. The transcriptomic analysis showed changes in ß-oxidation pathways, supporting the decreased lipid accumulation in the HFD-ED fed mice. Therefore, our data suggests that EPA and DHA supplementation of a high fat diet may be anti-inflammatory, as well as reduce lipid accumulation in adipose tissues.


Assuntos
Tecido Adiposo Marrom/metabolismo , Tecido Adiposo Branco/metabolismo , Dieta Hiperlipídica , Ácidos Docosa-Hexaenoicos/farmacologia , Ácido Eicosapentaenoico/farmacologia , Metabolismo dos Lipídeos/efeitos dos fármacos , Animais , Ácido Araquidônico/metabolismo , Óleo de Milho/farmacologia , Proteínas de Ligação a DNA/genética , Proteínas de Ligação a DNA/metabolismo , Ácidos Graxos Ômega-3/farmacologia , Regulação da Expressão Gênica , Peroxidação de Lipídeos/efeitos dos fármacos , Masculino , Camundongos , Camundongos Endogâmicos C57BL , PPAR alfa/genética , PPAR alfa/metabolismo , Fatores de Transcrição/genética , Fatores de Transcrição/metabolismo
19.
BMC Oral Health ; 18(1): 191, 2018 11 21.
Artigo em Inglês | MEDLINE | ID: mdl-30463549

RESUMO

BACKGROUND: Link workers (lay health workers, health support workers) based in the community provide additional support to individuals and families to facilitate engagement with primary care and other services and resources. This additional support aims to tackle the wider socio-economic determinants of health that lead to inequalities. To date, there is no clear evidence of the effectiveness of these programmes. This study evaluates the effectiveness of Dental Health Support Workers (DHSW) at linking targeted families with young children to primary care dental practices. The DHSW role is one component of Childsmile, the national oral health improvement programme in Scotland. METHODS: A quasi-experimental approach captured the natural variation in the rollout of the DHSW intervention across Scotland in a cohort of children born between 2010 and 2013. Survival analysis explored "time to attendance" at primary care dental practice. Cox's regression models compared attendance rates and time until first attendance between those families who received support from the DHSW and those who did not. RESULTS: The cohort consisted of 35236 children. Thirty-three percent of the cohort (n = 11495) were considered to require additional support from a DHSW. Of these, 44% (5087) received that support. These families were more likely to attend a dental practice (Hazard Ratio [95% Confidence Interval] =1.87 [1.8 to 1.9]) and, on average, did so 9 months earlier (median time until first attendance: 8.8 months versus 17.8 months), compared to families not receiving additional support. CONCLUSIONS: Link workers (DHSW) within the Childsmile programme are effective at linking targeted children to primary care dental services and, most notably, at a younger age for prevention. This is the first study of its kind to evaluate the effectiveness of link-worker programmes using a robust quasi-experimental design on three, population-wide, linked datasets. These results will inform future health programmes which aim to improve health and reduce inequalities by reaching and supporting families from more disadvantaged backgrounds.


Assuntos
Pessoal Técnico de Saúde , Assistência Odontológica para Crianças , Fatores Etários , Criança , Pré-Escolar , Estudos de Coortes , Acessibilidade aos Serviços de Saúde , Humanos , Lactente , Armazenamento e Recuperação da Informação , Atenção Primária à Saúde , Modelos de Riscos Proporcionais , Encaminhamento e Consulta , Escócia , Populações Vulneráveis
20.
Crit Rev Food Sci Nutr ; 57(8): 1562-1568, 2017 May 24.
Artigo em Inglês | MEDLINE | ID: mdl-25747755

RESUMO

Some countries now incorporate recommendations for increased consumption of whole grain (WG) into local dietary guidelines. Cereal and pseudo-cereal grains are good sources of complex carbohydrates, dietary fiber, proteins, phytochemicals, vitamins and minerals. However, research shows that the large majority of consumers are still falling short of WG consumption goals. To address this, we are actively involved in research to help increase the WG content of processed foods without compromising on taste and texture. In order to ensure consumer trust, the advancement of process technologies in incorporating WG to produce tasty food has to go hand in hand with well designed clinical trials that confirm the health benefits resulting from diets rich in WG.


Assuntos
Manipulação de Alimentos , Grãos Integrais/química , Comportamento do Consumidor , Qualidade de Produtos para o Consumidor , Dieta Saudável , Fibras na Dieta/administração & dosagem , Fibras na Dieta/análise , Proteínas Alimentares/administração & dosagem , Proteínas Alimentares/análise , Ingestão de Energia , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Política Nutricional , Valor Nutritivo , Compostos Fitoquímicos/administração & dosagem , Compostos Fitoquímicos/análise , Paladar
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