1,422 research outputs found
Association Between Prehypertension, Metabolic And Inflammatory Markers, Decreased Adiponectin And Enhanced Insulinemia In Obese Subjects.
Obesity is associated with development of the cardiorenal metabolic syndrome, which is a constellation of risk factors, such as insulin resistance, inflammatory response, dyslipidemia, and high blood pressure that predispose affected individuals to well-characterized medical conditions such as diabetes, cardiovascular and kidney chronic disease. The study was designed to establish relationship between metabolic and inflammatory disorder, renal sodium retention and enhanced blood pressure in a group of obese subjects compared with age-matched, lean volunteers. The study was performed after 14 h overnight fast after and before OGTT in 13 lean (BMI 22.92 ± 2.03 kg/m(2)) and, 27 obese (BMI 36.15 ± 3.84 kg/m(2)) volunteers. Assessment of HOMA-IR and QUICKI index were calculated and circulating concentrations of TNF-α, IL-6 and C-reactive protein, measured by immunoassay. THE STUDY SHOWS THAT A HYPERINSULINEMIC (HI: 10.85 ± 4.09 μg/ml) subgroup of well-characterized metabolic syndrome bearers-obese subjects show higher glycemic and elevated blood pressure levels when compared to lean and normoinsulinemic (NI: 5.51 ± 1.18 μg/ml, P < 0.027) subjects. Here, the combination of hyperinsulinemia, higher HOMA-IR (HI: 2.19 ± 0.70 (n = 12) vs. LS: 0.83 ± 0.23 (n = 12) and NI: 0.98 ± 0.22 (n = 15), P < 0.0001) associated with lower QUICKI in HI obese when compared with LS and NI volunteers (P < 0.0001), suggests the occurrence of insulin resistance and a defect in insulin-stimulated peripheral action. Otherwise, the adiponectin measured in basal period was significantly enhanced in NI subjects when compared to HI groups (P < 0.04). The report also showed a similar insulin-mediated reduction of post-proximal urinary sodium excretion in lean (LS: 9.41 ± 0.68% vs. 6.38 ± 0.92%, P = 0.086), and normoinsulinemic (NI: 8.41 ± 0.72% vs. 5.66 ± 0.53%, P = 0.0025) and hyperinsulinemic obese subjects (HI: 8.82 ± 0.98% vs. 6.32 ± 0.67%, P = 0.0264), after oral glucose load, despite elevated insulinemic levels in hyperinsulinemic obeses. In conclusion, this study highlights the importance of adiponectin levels and dysfunctional inflammatory modulation associated with hyperinsulinemia and peripheral insulin resistance, high blood pressure, and renal dysfunction in a particular subgroup of obeses.112
Bartonella henselae bacteremia diagnosed post-mortem in a myelodysplastic syndrome patient
This study involves a 49-year-old male, who for three years suffered with a myelodysplastic syndrome and who needed frequent blood transfusions. One day following a transfusion, he presented fever and abdominal pain. The fever became persistent and only improved temporarily with two cycles of intravenous ciprofloxacin. Nearly 120 days after beginning the second cycle of treatment, he had experienced a weight loss of 16 kg and recurring fever. Screening for fever of unknown origin was conducted, including Bartonella infection. No etiology could be found. The patient improved with an antimicrobial regimen composed of oral doxycycline and intravenous ciprofloxacin. After 15 days afebrile, the patient was discharged with a four-month oral prescription of doxycycline and ciprofloxacin. Eight months following the antibiotic treatment, the patient received an allogeneic bone marrow transplant. Five days following the transplant, the patient initiated a febrile neutropenia and died. From a blood sample collected and stored at the time of hospitalization, a microbiological and molecular study was performed again. Blood- and liquid culture-PCRs from the same blood sample were all negative, but an isolate from solid subculture was found. The molecular reactions from this isolate were all positive and the sequence was 100% homologous to Bartonella henselae. The present report points to the limitations of laboratory techniques currently available for investigation of possible cases of bartonellosis in clinical practice, and the potential risk of Bartonella spp. transmission through blood transfusions
Two-year history of lymphadenopathy and fever caused by Bartonella henselae in a child
We report the case of a 6-year-old boy that presented with enlarged lymph nodes on his neck. He complained of tiredness and discouragement, which worsened during feverish periods. There were no relevant laboratory test abnormalities and serological tests were not reactive. Bartonella henselae DNA was detected by species-specific nested polymerase chain reaction. After treatment, the patient progressed with no fever or lymphadenopathy. Bartonellosis is a group of infectious diseases caused by bacteria of the genus Bartonella. This case report is a useful reminder to clinicians that long-term fever of unknown origin can be related to B. henselae infection, even if the specific serology is not reactive
Soil evaluation for pineapple cultivation (ananás comosus) in the municipality of Teotônio Vilela, Alagoas / Avaliação do solo para cultivação de abacaxi (ananás comosus) no município de Teotônio Vilela, Alagoas
Soil fertility is one of the crucial factors for agriculture, which has as its main objective the increase of its production. This is why it is extremely important to know the nutritional requirement of the cultivar. The present study aimed to evaluate soil fertility in the municipality of Teotônio Vilela – Alagoas, in the Laudelino farm, emphasizing the quantification of the nutrients needed to guarantee the agricultural productivity for the pineapple crop (Ananás comosus). For this purpose, a random sampling of soil was initiated in the area 1.0 hectare in the layer of 0-20 cm of depth. Fifteen samples were collected (each sample with approximately 0.5 DM ³ of soil) from simple collection were mixed to compose a single composite sample and, from this, 1.0 kg of soil was withdrawn for posterior soil fertility analyses. Carried out in the soil Laboratory of the Agrarian Sciences Center (ECSC) of the Universidade Federal de Alagoas (UFAL) located in the municipality of Rio Largo, AL. We analyzed the potential hydrogenionic (pH), phosphorus (P) and potassium (K +) accessible; Calcium (Ca + 2) and magnesium (Mg + 2) exchangeable; Exchangeable aluminum saturation (m%), CTC cation exchange capacity at pH 7.0 (T); Base sum (V%) and Organic matter (OM). It was observed that the results showed the following values: Ca + 2 contents (3.42 Cmolc/DM ³), CTC (T) (10.73 Cmolc/DM ³); K + (110 mg/DM ³), Mg + 2 (2.53 Cmolc/DM ³), Al + 3 (0.03 Cmolc/DM ³), MO (14.1 g/kg), P (5.0 mg/DM ³), M% (0.0), pH (5.6) and V% (59.0). From the results found, it is concluded that it will not be necessary to apply limestone to increase the base saturation to 60%, because 59% as found in the soil already satimakes nutritional need of the culture in question. In addition to this correction, it is also recommended the dosage of 160 kg of P2O5 and 40 kg of nitrogen (N) per hectare, through the incorporation in the soil of 800 kg/ha in the formulation 05-20-0. However, organic fertilization between 30 and 50 t/ha of curable corral manure, if possible 30 days before planting can elevate redendimento of the cultivar. It is noteworthy that its application is insexpenable to the culture by promoting better development to the plant and the fruit.
Pharmacological inhibition of lysine-specific demethylase 1 (LSD1) induces global transcriptional deregulation and ultrastructural alterations that impair viability in Schistosoma mansoni
Treatment and control of schistosomiasis still rely on only one effective drug, praziquantel (PZQ) and, due to mass treatment, the increasing risk of selecting for schistosome strains that are resistant to PZQ has alerted investigators to the urgent need to develop novel therapeutic strategies. The histone-modifying enzymes (HMEs) represent promising targets for the development of epigenetic drugs against Schistosoma mansoni. In the present study, we targeted the S. mansoni lysine-specific demethylase 1 (SmLSD1), a transcriptional corepressor, using a novel and selective synthetic inhibitor, MC3935, which was used to treat schistosomula and adult worms in vitro. By using cell viability assays and optical and electron microscopy, we showed that treatment with MC3935 affected parasite motility, egg-laying, tegument, and cellular organelle structures, culminating in the death of schistosomula and adult worms. In silico molecular modeling and docking analysis suggested that MC3935 binds to the catalytic pocket of SmLSD1. Western blot analysis revealed that MC3935 inhibited SmLSD1 demethylation activity of H3K4me1/2. Knockdown of SmLSD1 by RNAi recapitulated MC3935 phenotypes in adult worms. RNA-Seq analysis of MC3935-treated parasites revealed significant differences in gene expression related to critical biological processes. Collectively, our findings show that SmLSD1 is a promising drug target for the treatment of schistosomiasis and strongly support the further development and in vivo testing of selective schistosome LSD1 inhibitors
Analysis of possible pathways on the mechanism of action of minocycline and doxycycline against strains of Candida spp. resistant to fluconazole
Species of the genus Candida, characterized as commensals of the human microbiota, are opportunistic pathogens capable of generating various types of infections with high associated costs. Considering the limited pharmacological arsenal and the emergence of antifungal-resistant strains, the repositioning of drugs is a strategy used to search for new therapeutic alternatives, in which minocycline and doxycycline have been evaluated as potential candidates. Thus, the objective was to evaluate the in vitro antifungal activity of two tetracyclines, minocycline and doxycycline, and their possible mechanism of action against fluconazole-resistant strains of Candida spp. The sensitivity test for antimicrobials was performed using the broth microdilution technique, and the pharmacological interaction with fluconazole was also analysed using the checkerboard method. To analyse the possible mechanisms of action, flow cytometry assays were performed. The minimum inhibitory concentration obtained was 4-427 µg ml-1 for minocycline and 128-512 µg ml-1 for doxycycline, and mostly indifferent and additive interactions with fluconazole were observed. These tetracyclines were found to promote cellular alterations that generated death by apoptosis, with concentration-dependent reactive oxygen species production and reduced cell viability. Therefore, minocycline and doxycycline present themselves as promising study molecules against Candida spp.This study was supported by grants and fellowships from the research support agencies CNPq, CAPES and FUNCAP/Ceará.Peer reviewe
ATRIBUIÇÕES DO ENFERMEIRO NO ACOLHIMENTO COM CLASSIFICAÇÃO DE RISCO NOS SERVIÇOS DE URGÊNCIA E EMERGÊNCIA: UM ESTUDO DE REVISÃO INTEGRATIVA
This study aims to describe the duties of nurses during Welcoming with Risk Classification in urgent and emergency services. The present study is an integrative literature review. The bibliographic survey was carried out between October 10th and November 15th, 2023 in the indexed databases: LILACS, SCIELO and PUBMED, using the descriptors “Risk Classification” AND “Nursing”, which are registered in the DECS and which were defined according to the proposed theme. The inclusion criteria for this study were full original articles available in indexed databases, written in Portuguese, and which were recently published in the last six years. After analysis, reading of the studies and application of the inclusion and exclusion criteria, a quantity of 8 articles were selected to compose this integrative review, as they covered the proposed theme. Data analysis was carried out according to the content analysis technique proposed by Bardin. The selected studies were developed in Caruaru, Fortaleza, in the Center West of Goiás, in the interior of Rio Grande do Sul, in João Pessoa, in Santa Catarina, in the Center West region of the state of São Paulo, and in the interior of Rio de Janeiro. The selected studies were displayed in a data table containing the information: title, author, year, study objective, study methodology, and database. In view of the aforementioned aspects, it was possible to observe that the nurse's duties in risk classification are focused on welcoming, dialogue and building a bond with the user and family members, as well as carrying out anamnesis with assessment of vital signs to identify the level of severity and carry out classification according to the Manchester protocol. Furthermore, these professionals carry out a humanized practice, as they evaluate non-severe patients, inform users about the waiting time for care, and notify cases of infectious diseases.Esse estudo tem como objetivo descrever as atribuições dos enfermeiros durante o Acolhimento com Classificação de Risco nos serviços de urgência e emergência. O presente estudo trata-se de uma revisão de literatura do tipo integrativa. O levantamento bibliográfico foi realizado entre o período de 10 de outubro a 15 de novembro de 2023 nas bases de dados indexadas: LILACS, SCIELO e PUBMED, utilizando os descritores “Classificação de Risco” AND “Enfermagem”, que estão registrados nos DECS e que foram definidos conforme a temática proposta. Os critérios de inclusão desse estudo foram os artigos originais na íntegra disponíveis nas bases de dados indexadas, escritos em língua portuguesa, e que foram publicados recentemente nos últimos seis anos. Após a análise, leitura dos estudos e aplicação dos critérios de inclusão e exclusão, foram selecionados um quantitativo de 8 artigos para compor essa revisão integrativa, visto que esses abrangeram a temática proposta. A análise de dados foi realizada conforme a técnica de análise de conteúdo, proposta por Bardin. Os estudos selecionados foram desenvolvidos em Caruaru, Fortaleza, no Centro Oeste de Goiás, no interior do Rio Grande do Sul, em João Pessoa, em Santa Catarina, na região Centro Oeste do estado de São Paulo, e no interior do Rio de Janeiro. Os estudos selecionados foram expostos em um quadro de dados contendo as informações: título, autor, ano, objetivo do estudo, metodologia do estudo, e base de dados. Tendo em vista os referidos aspectos foi possível observar que as atribuições do enfermeiro na classificação de risco estão voltadas ao acolhimento, diálogo e construção de vínculo com o usuário e os familiares, assim como a realização da anamnese com avaliação dos sinais vitais para identificar o nível de gravidade e realizar a classificação segundo o protocolo de Manchester. Além disso, esses profissionais realizam uma prática humanizada, pois avaliam os pacientes não graves, informam os usuários sobre o tempo de espera para o atendimento, e realizam a notificação dos casos de doenças infectocontagiosas
Propriedades da Alcachofra com Ênfase na Composição Nutricional/Properties of Artichoke with Emphasis on Nutritional Composition
O uso de plantas medicinais consiste em uma das mais antigas formas de prática medicinal utilizada tanto, para o tratamento quanto, para a cura e prevenção de doenças. Dentre as plantas medicinais de maior relevância, a alcachofra (Cynara scolymus L.) tem recebido destaque, devido aos seus efeitos benéficos sob a saúde humana. Diante disso, o objetivo do estudo foi identificar as propriedades da alcachofra com ênfase na composição nutricional. Para isso, foi realizada uma revisão narrativa através da busca em bancos de dados eletrônicos acerca das propriedades da alcachofra. As bases de dados consultadas foram: Scientific Electronic Library Online (SciELO), Biblioteca Virtual em Saúde (BVS) e outras Revistas Eletrônicas de Saúde, com dimensão temporal entre 2001 e 2018, nos idiomas português e inglês. Pode-se verificar com os dados obtidos, que a alcachofra atua com benefícios frente a doenças hepáticas, saúde intestinal, diabetes, apetite e hipercolesterolemia e suas propriedades bioativas estão associadas diretamente a sua composição química
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