66 research outputs found
Life post-death: Colonization of a bat carcass by Microcerella halli (Engel, 1931) (Diptera: Sarcophagidae) in a Neotropical cave
Caves are habitats characterized by low light or total darkness, whose fauna is largely composed of animals that adapt to dark environments, such as bats and many arthropods. Here, we present the first record of bat carcass colonization by Diptera larvae in a cave in the Neotropics. Twenty-one adult specimens of Microcerella halli (Sarcophagidae), seven males and 14 females, emerged from larvae collected in a carcass of Pteronotus gymnonotus (Mormoopidae) found in a twilight zone, about 15 m from the cave entrance. The mean time between carcass collection and adult emergence was 17.99 ± 0.44 days. As colonization by M. halli only occurs after death, we estimated the mean duration of the pupal stage – by recording daily pupation and emergence data – and attempted a preliminary estimate of the post-mortem interval, which indicated that larviposition occurred at least 24 h before carcass collection. Furthermore, we discussed the fact that M. halli females can find and colonize carcasses in low light environments, reinforcing the forensic potential of the species
Desenvolvimento de processos cromatográficos para retenção de amônia em água produzida- relatório final
A extração do petróleo em áreas offshore é, em geral, acompanhada de água de formação, originária do reservatório. Esta água tem características oleosas com um alto teor de sais o que constitui um sério problema ambiental. O nível de concentração de amônia nesta água é superior ao limite máximo permitido para descarte. A principal dificuldade na remoção de amônia da água produzida é o alto nível de íons sódio e a presença de muitos outros íons interferentes encontrados nesta água. Este relatório apresenta a consolidação do estudo da remoção de amônia de água produzida utilizando zeólitas e adsorventes comerciais
ESTUDOS E IMPLEMENTAÇÃO DA METODOLOGIA TPM NO LABORATÓRIO DE PROCESSOS DE FABRICAÇÃO DA UniEVANGÉLICA
Este trabalho teve por objetivo realizar estudos sobre a metodologia da Manutenção Preditiva Total (TPM) e implantar o 1º pilar dos 8 pilares desse conjunto de técnicas e procedimentos no laboratório de Processos de Fabricação, do Centro Tecnológico, da UniEVANGÉLICA. A metodologia utilizada foi, inicialmente, o estudo das principais bibliografias sobre a filosofia TPM envolvendo os 8 pilares, e em segundo momento foi realizada a implantação do 1º pilar desse conjunto de técnicas. A partir de levantamentos foram realizadas intervenções técnicas e capacitações embasadas e estruturadas no 1º pilar da TPM: Manutenção Autônoma. Com a implementação da manutenção autônoma foi possível verificar as consequências das melhorias dessa ferramenta de gestão da manutenção como: melhor disposição de máquinas e equipamentos, higiene e segurança no trabalho, controle de realização das manutenções assim como, o planejamento das manutenções preventivas e preditivas, além de proporcionar um melhor ambiente de trabalho e propício para desenvolvimento do aprendizado.
AS REPRESENTAÇÕES DAS MULHERES MASTECTOMIZADAS SOBRE O SEU CORPO “ALTERADO”
Treatment versus body; and, The re-designedbody. While society considers that the femalebody’s shape is more valorized when it is said tobe ‘perfect’, mastectomized women withmastectomies no longer hold this ‘perfection’.This change results in a state of uncertainty, fear,conflict, depression, and acceptance, factors thatdirectly influence patients’ treatment. Accordingto respondents in this case study, the acceptanceof their mutilated bodies after surgery wasjustified through religioEn este estudio se pretende analizar la representación de las mujeres mastectomizadas en su cuerpo "Changed", como es el proceso de aceptación de cáncer de mama y la mastectomía consecuencia. Así que usamos las secciones más importantes de los testimonios de veinte mujeres mastectomizadas, que se presentan como elementos para la discusión teórica. El material producido se formaron en fuentes primarias consolidando así el informe de investigación. Así que hemos identificado las siguientes categorías: el auto examen: cuerpo propio conocimiento y el estigma de la enfermedad. En este último vinieron los siguientes subunidades: un curador Dios, Tratamiento contra el cuerpo y el cuerpo rediseñado. Considerando que la sociedad muestra que la forma del cuerpo de la mujer es más valioso cuando se dice "perfecto", la perfección de la que las mujeres mastectomizadas ya no tienen. Esta modificación provoca un estado de incertidumbre, el miedo, el conflicto, la depresión y aceptación, los factores que influyen directamente en el tratamiento de los pacientes. Según los testigos, el estudio de caso, la aceptación por parte de sus cuerpos mutilados después de la cirugía fue justificado por medio de la religión. Esta pesquisa se propôs analisar a representação da mulher mastectomizada sobre o seu corpo “alterado”, como ocorre o processo de aceitação do Câncer de mama e consequentemente, a mastectomia.Dessa forma utilizamos os trechos mais significativos dos depoimentos de vinte mulheres mastectomizadas, os quais se apresentaram como elementos para discussão teórica. Os materiais produzidos se constituíram em fontes primárias de dados consolidando assim, o relatório da pesquisa. Assim foram identificadas as seguintes categorias: Autoexame: conhecendo o próprio corpo e O estigma da doença. Neste último, surgiram as seguintes subunidades: Um Deus curador, Tratamento versus corpo e O corpo reformulado. Considerando que a sociedade evidencia que a forma do corpo feminino é mais valorizado quando é dito “perfeito”, perfeição da qual as mulheres mastectomizadas não são mais detentoras. Essa modificação acarreta um estado de incerteza, medo, conflito, depressão e aceitação, fatores que influenciam diretamente no tratamento das pacientes. Segundo as depoentes, no caso estudado, a aceitação pelos seus corpos mutilados após a cirurgia foi justificada através da religião
Neuroprotective effects on microglia and insights into the structure–activity relationship of an antioxidant peptide isolated from Pelophylax perezi
© 2022 The Authors. Journal of Cellular and Molecular Medicine published by Foundation for Cellular and Molecular Medicine and John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly citedTryptophyllins constitute a heterogeneous group of peptides that are one of the first classes of peptides identified from amphibian's skin secretions. Here, we report the structural characterization and antioxidant properties of a novel tryptophyllin-like peptide, named PpT-2, isolated from the Iberian green frog Pelophylax perezi. The skin secretion of P. perezi was obtained by electrical stimulation and fractionated using RP-HPLC. De novo peptide sequencing was conducted using MALDI MS/MS. The primary structure of PpT-2 (FPWLLS-NH2 ) was confirmed by Edman degradation and subsequently investigated using in silico tools. PpT-2 shared physicochemical properties with other well-known antioxidants. To test PpT-2 for antioxidant activity in vitro, the peptide was synthesized by solid phase and assessed in the chemical-based ABTS and DPPH scavenging assays. Then, a flow cytometry experiment was conducted to assess PpT-2 antioxidant activity in oxidatively challenged murine microglial cells. As predicted by the in silico analyses, PpT-2 scavenged free radicals in vitro and suppressed the generation of reactive species in PMA-stimulated BV-2 microglia cells. We further explored possible bioactivities of PpT-2 against prostate cancer cells and bacteria, against which the peptide exerted a moderate antiproliferative effect and negligible antimicrobial activity. The biocompatibility of PpT-2 was evaluated in cytotoxicity assays and in vivo toxicity with Galleria mellonella. No toxicity was detected in cells treated with up to 512 µg/ml and in G. mellonella treated with up to 40 mg/kg PpT-2. This novel peptide, PpT-2, stands as a promising peptide with potential therapeutic and biotechnological applications, mainly for the treatment/prevention of neurodegenerative disorders.This work was financed by FEDER - Fundo Europeu de Desenvolvimento Regional funds through the COMPETE 2020 - Operacional Programme for Competitiveness and Internationalization (POCI), and by Portuguese funds through FCT - Fundação para a Ciência e a Tecnologia in the framework of the project POCI-01-0145-FEDER-031158 – PTDC/BII-BIO/31158/2017. The authors would like to thank the participation and scientific support of the Unit projects UIDB/50006/2020 | UIDP/50006/2020, and the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Universal Faixa ‘B’ (grant number 32103/2018-0). A.P. is a recipient of a post-doctoral grant from the project PTDC/BII-BIO/31158/2017. The authors would like to thank the researcher Roberto Resendes (CiBio, University of the Azores, Ponta Delgada, São Miguel, Azores, Portugal) for the logistical support in the collection of samples. C.P.A acknowledges FCT-MCTES fellowship PD/BD/136860/2018. A.B.-N. and F.C.D.A.L. acknowledge CNPq (grants 420449/2018-3 and 428211/2018-6) for financial support.info:eu-repo/semantics/publishedVersio
O processo morte/morrer de pacientes fora de possibilidade atuais de cura:: uma revisão integrativa
Esta pesquisa tem como objeto o processo de morte/morrer de pacientes fora de possibilidades terapêuticas atuais (FPTA) no ambiente domiciliar e suas implicações para o cuidado do outro. No presente estudo, realizamos uma revisão integrativa, sendo utilizado o banco de dados da Biblioteca Virtual de Saúde (BVS) Usou a análise de conteúdo temático da qual emergiram as uma única unidade: reflexões sobre o processo de morte/morrer de pacientes fora de possibilidades terapêuticas atuais (fpta) no atendimento domiciliar; que se desdobrou em:Historiciando o Cuidado Domiciliar e seus Conceitos, A Evolução Social da Morte, O Processo de Morrer ”“ Implicações Afetivas, Processo Oncológico, Paciente Terminal ”“ “Aquele” Fora de Possibilidades Terapêuticas Atuais (FPTA) ”“ e Cuidados Paliativos, A Enfermagem diante do Processo de Morte e Morrer do Paciente Fora de Possibilidades Terapêuticas Atuais (FPTA). Os profissionais de enfermagem são os que mais tempo permanecem junto do paciente e também dos familiares, constituindo-se em verdadeiros elos, os principais responsáveis em promover a interação de todos os envolvidos e buscar por recursos que possibilitem à pessoa enferma melhor qualidade de vida
Why Are Outcomes Different for Registry Patients Enrolled Prospectively and Retrospectively? Insights from the Global Anticoagulant Registry in the FIELD-Atrial Fibrillation (GARFIELD-AF).
Background: Retrospective and prospective observational studies are designed to reflect real-world evidence on clinical practice, but can yield conflicting results. The GARFIELD-AF Registry includes both methods of enrolment and allows analysis of differences in patient characteristics and outcomes that may result. Methods and Results: Patients with atrial fibrillation (AF) and ≥1 risk factor for stroke at diagnosis of AF were recruited either retrospectively (n = 5069) or prospectively (n = 5501) from 19 countries and then followed prospectively. The retrospectively enrolled cohort comprised patients with established AF (for a least 6, and up to 24 months before enrolment), who were identified retrospectively (and baseline and partial follow-up data were collected from the emedical records) and then followed prospectively between 0-18 months (such that the total time of follow-up was 24 months; data collection Dec-2009 and Oct-2010). In the prospectively enrolled cohort, patients with newly diagnosed AF (≤6 weeks after diagnosis) were recruited between Mar-2010 and Oct-2011 and were followed for 24 months after enrolment. Differences between the cohorts were observed in clinical characteristics, including type of AF, stroke prevention strategies, and event rates. More patients in the retrospectively identified cohort received vitamin K antagonists (62.1% vs. 53.2%) and fewer received non-vitamin K oral anticoagulants (1.8% vs . 4.2%). All-cause mortality rates per 100 person-years during the prospective follow-up (starting the first study visit up to 1 year) were significantly lower in the retrospective than prospectively identified cohort (3.04 [95% CI 2.51 to 3.67] vs . 4.05 [95% CI 3.53 to 4.63]; p = 0.016). Conclusions: Interpretations of data from registries that aim to evaluate the characteristics and outcomes of patients with AF must take account of differences in registry design and the impact of recall bias and survivorship bias that is incurred with retrospective enrolment. Clinical Trial Registration: - URL: http://www.clinicaltrials.gov . Unique identifier for GARFIELD-AF (NCT01090362)
Risk profiles and one-year outcomes of patients with newly diagnosed atrial fibrillation in India: Insights from the GARFIELD-AF Registry.
BACKGROUND: The Global Anticoagulant Registry in the FIELD-Atrial Fibrillation (GARFIELD-AF) is an ongoing prospective noninterventional registry, which is providing important information on the baseline characteristics, treatment patterns, and 1-year outcomes in patients with newly diagnosed non-valvular atrial fibrillation (NVAF). This report describes data from Indian patients recruited in this registry. METHODS AND RESULTS: A total of 52,014 patients with newly diagnosed AF were enrolled globally; of these, 1388 patients were recruited from 26 sites within India (2012-2016). In India, the mean age was 65.8 years at diagnosis of NVAF. Hypertension was the most prevalent risk factor for AF, present in 68.5% of patients from India and in 76.3% of patients globally (P < 0.001). Diabetes and coronary artery disease (CAD) were prevalent in 36.2% and 28.1% of patients as compared with global prevalence of 22.2% and 21.6%, respectively (P < 0.001 for both). Antiplatelet therapy was the most common antithrombotic treatment in India. With increasing stroke risk, however, patients were more likely to receive oral anticoagulant therapy [mainly vitamin K antagonist (VKA)], but average international normalized ratio (INR) was lower among Indian patients [median INR value 1.6 (interquartile range {IQR}: 1.3-2.3) versus 2.3 (IQR 1.8-2.8) (P < 0.001)]. Compared with other countries, patients from India had markedly higher rates of all-cause mortality [7.68 per 100 person-years (95% confidence interval 6.32-9.35) vs 4.34 (4.16-4.53), P < 0.0001], while rates of stroke/systemic embolism and major bleeding were lower after 1 year of follow-up. CONCLUSION: Compared to previously published registries from India, the GARFIELD-AF registry describes clinical profiles and outcomes in Indian patients with AF of a different etiology. The registry data show that compared to the rest of the world, Indian AF patients are younger in age and have more diabetes and CAD. Patients with a higher stroke risk are more likely to receive anticoagulation therapy with VKA but are underdosed compared with the global average in the GARFIELD-AF. CLINICAL TRIAL REGISTRATION-URL: http://www.clinicaltrials.gov. Unique identifier: NCT01090362
Improved risk stratification of patients with atrial fibrillation: an integrated GARFIELD-AF tool for the prediction of mortality, stroke and bleed in patients with and without anticoagulation.
OBJECTIVES: To provide an accurate, web-based tool for stratifying patients with atrial fibrillation to facilitate decisions on the potential benefits/risks of anticoagulation, based on mortality, stroke and bleeding risks. DESIGN: The new tool was developed, using stepwise regression, for all and then applied to lower risk patients. C-statistics were compared with CHA2DS2-VASc using 30-fold cross-validation to control for overfitting. External validation was undertaken in an independent dataset, Outcome Registry for Better Informed Treatment of Atrial Fibrillation (ORBIT-AF). PARTICIPANTS: Data from 39 898 patients enrolled in the prospective GARFIELD-AF registry provided the basis for deriving and validating an integrated risk tool to predict stroke risk, mortality and bleeding risk. RESULTS: The discriminatory value of the GARFIELD-AF risk model was superior to CHA2DS2-VASc for patients with or without anticoagulation. C-statistics (95% CI) for all-cause mortality, ischaemic stroke/systemic embolism and haemorrhagic stroke/major bleeding (treated patients) were: 0.77 (0.76 to 0.78), 0.69 (0.67 to 0.71) and 0.66 (0.62 to 0.69), respectively, for the GARFIELD-AF risk models, and 0.66 (0.64-0.67), 0.64 (0.61-0.66) and 0.64 (0.61-0.68), respectively, for CHA2DS2-VASc (or HAS-BLED for bleeding). In very low to low risk patients (CHA2DS2-VASc 0 or 1 (men) and 1 or 2 (women)), the CHA2DS2-VASc and HAS-BLED (for bleeding) scores offered weak discriminatory value for mortality, stroke/systemic embolism and major bleeding. C-statistics for the GARFIELD-AF risk tool were 0.69 (0.64 to 0.75), 0.65 (0.56 to 0.73) and 0.60 (0.47 to 0.73) for each end point, respectively, versus 0.50 (0.45 to 0.55), 0.59 (0.50 to 0.67) and 0.55 (0.53 to 0.56) for CHA2DS2-VASc (or HAS-BLED for bleeding). Upon validation in the ORBIT-AF population, C-statistics showed that the GARFIELD-AF risk tool was effective for predicting 1-year all-cause mortality using the full and simplified model for all-cause mortality: C-statistics 0.75 (0.73 to 0.77) and 0.75 (0.73 to 0.77), respectively, and for predicting for any stroke or systemic embolism over 1 year, C-statistics 0.68 (0.62 to 0.74). CONCLUSIONS: Performance of the GARFIELD-AF risk tool was superior to CHA2DS2-VASc in predicting stroke and mortality and superior to HAS-BLED for bleeding, overall and in lower risk patients. The GARFIELD-AF tool has the potential for incorporation in routine electronic systems, and for the first time, permits simultaneous evaluation of ischaemic stroke, mortality and bleeding risks. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique identifier for GARFIELD-AF (NCT01090362) and for ORBIT-AF (NCT01165710)
Two-year outcomes of patients with newly diagnosed atrial fibrillation: results from GARFIELD-AF.
AIMS: The relationship between outcomes and time after diagnosis for patients with non-valvular atrial fibrillation (NVAF) is poorly defined, especially beyond the first year. METHODS AND RESULTS: GARFIELD-AF is an ongoing, global observational study of adults with newly diagnosed NVAF. Two-year outcomes of 17 162 patients prospectively enrolled in GARFIELD-AF were analysed in light of baseline characteristics, risk profiles for stroke/systemic embolism (SE), and antithrombotic therapy. The mean (standard deviation) age was 69.8 (11.4) years, 43.8% were women, and the mean CHA2DS2-VASc score was 3.3 (1.6); 60.8% of patients were prescribed anticoagulant therapy with/without antiplatelet (AP) therapy, 27.4% AP monotherapy, and 11.8% no antithrombotic therapy. At 2-year follow-up, all-cause mortality, stroke/SE, and major bleeding had occurred at a rate (95% confidence interval) of 3.83 (3.62; 4.05), 1.25 (1.13; 1.38), and 0.70 (0.62; 0.81) per 100 person-years, respectively. Rates for all three major events were highest during the first 4 months. Congestive heart failure, acute coronary syndromes, sudden/unwitnessed death, malignancy, respiratory failure, and infection/sepsis accounted for 65% of all known causes of death and strokes for <10%. Anticoagulant treatment was associated with a 35% lower risk of death. CONCLUSION: The most frequent of the three major outcome measures was death, whose most common causes are not known to be significantly influenced by anticoagulation. This suggests that a more comprehensive approach to the management of NVAF may be needed to improve outcome. This could include, in addition to anticoagulation, interventions targeting modifiable, cause-specific risk factors for death. CLINICAL TRIAL REGISTRATION: http://www.clinicaltrials.gov. Unique identifier: NCT01090362
- …