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This study aimed to validate an inflammation-based risk score in patients with ST-segment elevation myocardial infarction (STEMI) by examining their cytokine profiles. Upon admission, patients were evaluated for systemic inflammation using a risk score that assigned points based on specific biomarkers: 1 point for leukocyte count ≥9.3 × 10³ cells/µL, 2 points for high-sensitivity C-reactive protein (hsCRP) ≥13.0 mg/L, and 3 points for serum albumin ≤3.6 g/dL. Patients were categorized into three groups: no inflammation (0 points, n = 13), mild inflammation (1-2 points, n = 35), and severe inflammation (3-6 points, n = 26). Serum levels of 16 key cytokines were measured. Patients with higher risk scores showed elevated interleukin (IL)-6 levels (19.6 vs. 8.5 vs. 6.8 pg/mL; P = 0.021) and decreased interferon-γ-induced protein-10 (IP-10) levels (73.4 vs. 68.8 vs. 112.2 pg/mL; P = 0.011). IL-6 was positively correlated with hsCRP (ρ 0.307) and negatively correlated with albumin (ρ -0.298), while IP-10 was negatively correlated with leukocyte count (ρ -0.301). No other cytokines showed significant association with the risk score. Higher inflammation scores were also associated with an increased incidence of major adverse cardiovascular events, particularly acute heart failure. This study underscores the association between the inflammation-based risk score and cytokine levels, specifically IL-6 and IP-10, in patients with STEMI.
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Human dental tissue mesenchymal stem cells (DT-MSCs) constitute an attractive alternative to bone marrow-derived mesenchymal stem cells (BM-MSCs) for potential clinical applications because of their accessibility and anti-inflammatory capacity. We previously demonstrated that DT-MSCs from dental pulp (DP-MSCs), periodontal ligaments (PDL-MSCs), and gingival tissue (G-MSCs) show immunosuppressive effects similar to those of BM, but to date, the DT-MSC-mediated immunoregulation of T lymphocytes through the purinergic pathway remains unknown. In the present study, we compared DP-MSCs, PDL-MSCs, and G-MSCs in terms of CD26, CD39, and CD73 expression; their ability to generate adenosine (ADO) from ATP and AMP; and whether the concentrations of ADO that they generate induce an immunomodulatory effect on T lymphocytes. BM-MSCs were included as the gold standard. Our results show that DT-MSCs present similar characteristics among the different sources analyzed in terms of the properties evaluated; however, interestingly, they express more CD39 than BM-MSCs; therefore, they generate more ADO from ATP. In contrast to those produced by BM-MSCs, the concentrations of ADO produced by DT-MSCs from ATP inhibited the proliferation of CD3+ T cells and promoted the generation of CD4+CD25+FoxP3+CD39+CD73+ Tregs and Th17+CD39+ lymphocytes. Our data suggest that DT-MSCs utilize the adenosinergic pathway as an immunomodulatory mechanism and that this mechanism is more efficient than that of BM-MSCs.
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5'-Nucleotidase , Adenosina , Apirase , Polpa Dentária , Células-Tronco Mesenquimais , Ligamento Periodontal , Linfócitos T , Células-Tronco Mesenquimais/metabolismo , Células-Tronco Mesenquimais/imunologia , Humanos , Adenosina/metabolismo , Polpa Dentária/citologia , Polpa Dentária/imunologia , Polpa Dentária/metabolismo , Linfócitos T/imunologia , Linfócitos T/metabolismo , 5'-Nucleotidase/metabolismo , Apirase/metabolismo , Ligamento Periodontal/citologia , Ligamento Periodontal/metabolismo , Trifosfato de Adenosina/metabolismo , Células Cultivadas , Gengiva/citologia , Gengiva/metabolismo , Gengiva/imunologia , Antígenos CD/metabolismo , Imunomodulação , Diferenciação Celular , Proliferação de Células , Dipeptidil Peptidase 4/metabolismo , Transdução de Sinais , Linfócitos T Reguladores/imunologia , Linfócitos T Reguladores/metabolismo , Proteínas Ligadas por GPIRESUMO
Major depressive disorder (MDD) is a mood disorder that has become a global health emergency according to the World Health Organization (WHO). It affects 280 million people worldwide and is a leading cause of disability and financial loss. Patients with MDD present immunoendocrine alterations like cortisol resistance and inflammation, which are associated with alterations in neurotransmitter metabolism. There are currently numerous therapeutic options for patients with MDD; however, some studies suggest a high rate of therapeutic failure. There are multiple hypotheses explaining the pathophysiological mechanisms of MDD, in which several systems are involved, including the neuroendocrine and immune systems. In recent years, inflammation has become an important target for the development of new therapeutic options. Extracellular monomeric ubiquitin (emUb) is a molecule that has been shown to have immunomodulatory properties through several mechanisms including cholinergic modulation and the generation of regulatory T cells. In this perspective article, we highlight the influence of the inflammatory response in MDD. In addition, we review and discuss the evidence for the use of emUb contained in Transferon as a concomitant treatment with selective serotonin reuptake inhibitors (SSRIs).
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Wilms tumor has been selected as an index tumor by the WHO Global Initiative for Childhood Cancer with the aim to improve cure rates worldwide. Nevertheless, there is a scarcity of published data on outcomes beyond those of the major cooperative groups. Therefore, we conducted a retrospective analysis including all patients with Wilms tumor treated at our referral center in Uruguay between 1995 and 2020. Treatment consisted of North American (NA) strategies in 23 cases (1995-2004), followed by the SIOP strategy in 35 cases thereafter. Staging included: I-II = 28, III = 7, IV = 14, and V = 9. There were no major surgical or medical complications; however, a delay in the administration of local radiotherapy was observed (median of 21 days after surgery). There were no cases of toxicity- or surgery-related deaths or treatment abandonment. Five-year probability of overall survival was 0.72 and 0.92 for the NA and SIOP groups, respectively. We conclude that outcomes were better for the SIOP strategy with no unexpected toxicities and high treatment compliance in both strategies. Timely implementation of radiotherapy was challenging.
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Tumor de Wilms , Humanos , Tumor de Wilms/terapia , Tumor de Wilms/mortalidade , Uruguai , Masculino , Feminino , Estudos Retrospectivos , Pré-Escolar , Lactente , Neoplasias Renais/terapia , Neoplasias Renais/mortalidade , Criança , Taxa de Sobrevida , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêuticoRESUMO
Acute lung injury caused by severe malaria (SM) is triggered by a dysregulated immune response towards the infection with Plasmodium parasites. Postmortem analysis of human lungs shows diffuse alveolar damage (DAD), the presence of CD8 lymphocytes, neutrophils, and increased expression of Intercellular Adhesion Molecule 1 (ICAM-1). P. berghei ANKA (PbA) infection in C57BL/6 mice reproduces many SM features, including acute lung injury characterized by DAD, CD8+ T lymphocytes and neutrophils in the lung parenchyma, and tissular expression of proinflammatory cytokines and adhesion molecules, such as IFNγ, TNFα, ICAM, and VCAM. Since this is related to a dysregulated immune response, immunomodulatory agents are proposed to reduce the complications of SM. The monocyte locomotion inhibitory factor (MLIF) is an immunomodulatory pentapeptide isolated from axenic cultures of Entamoeba hystolitica. Thus, we evaluated if the MLIF intraperitoneal (i.p.) treatment prevented SM-induced acute lung injury. The peptide prevented SM without a parasiticidal effect, indicating that its protective effect was related to modifications in the immune response. Furthermore, peripheral CD8+ leukocytes and neutrophil proportions were higher in infected treated mice. However, the treatment prevented DAD, CD8+ cell infiltration into the pulmonary tissue and downregulated IFNγ. Moreover, VCAM-1 expression was abrogated. These results indicate that the MLIF treatment downregulated adhesion molecule expression, impeding cell migration and proinflammatory cytokine tissular production, preventing acute lung injury induced by SM. Our findings represent a potential novel strategy to avoid this complication in various events where a dysregulated immune response triggers lung injury.
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Lesão Pulmonar Aguda , Modelos Animais de Doenças , Malária , Plasmodium berghei , Animais , Lesão Pulmonar Aguda/imunologia , Lesão Pulmonar Aguda/etiologia , Camundongos , Malária/imunologia , Plasmodium berghei/imunologia , Camundongos Endogâmicos C57BL , Neutrófilos/imunologia , Linfócitos T CD8-Positivos/imunologia , Citocinas/metabolismo , Pulmão/imunologia , Pulmão/patologia , Humanos , Feminino , OligopeptídeosRESUMO
RESUMEN Objetivo: La pandemia de Covid-19 interrumpió la educación presencial en la mayoría de los países del mundo. Las universidades colombianas no fueron la excepción, y ahora, con el regreso a las aulas físicas, enfrentan nuevos desafíos para garantizar la permanencia estudiantil y evitar que los casos de abandono académico sigan aumentando. En ese sentido, este estudio se propuso como objetivo identificar las motivaciones y temores que experimentan algunos universitarios colombianos al volver a la presencialidad, y cómo estas variables intervienen en la decisión de retornar o desertar. Los resultados aportan conocimientos relevantes sobre los desafíos de la educación superior en el contexto de la postpandemia. Materiales y método: Esta investigación fue de tipo descriptiva-explicativa. Participó una muestra por conveniencia de estudiantes de carreras profesionales en Colombia. Se aplicaron dos escalas confiables que evaluaron la percepción de estos estudiantes en cada uno de los factores e indicadores asociados a las variables analizadas. Resultados: Se encontró que las principales motivaciones para volver tienen que ver con mejorar el rendimiento y recuperar la normalidad académica. Estas motivaciones demostraron ser un predictor significativo que fortalece la decisión de regresar. En cambio, los temores a nivel psicosocial y económico aumentan el riesgo de deserción. Conclusión: Los temores en esta nueva normalidad, cuando no se aprenden a manejar, son factores de riesgo de deserción, mientras que las motivaciones académicas y psicológicas son factores protectores. En la discusión final se ofrecen recomendaciones educativas y de salud para prevenir la deserción.
ABSTRACT Objective: The Covid-19 pandemic interrupted face-to-face education in most countries of the world. Colombian universities were no exception and now, with the return to physical classrooms, they face new challenges to guarantee student retention and prevent academic dropouts from increasing. In this sense, the present study aimed to identify the motivations and fears experienced by some Colombian university students when returning to the physical classroom, and how these variables intervene in the decision to return or drop out. The results provide relevant knowledge about the challenges of higher education in the post-pandemic period. Materials and Method: This descriptive-explanatory research involved a convenience sampling of professional career students in Colombia. Two reliable scales were applied to evaluate the perception of these students in each of the factors and indicators associated with the variables analyzed. Results: It was found that the main motivations for returning had to do with improving performance and recovering academic normality. These motivations proved to be a significant predictor that strengthens the decision to return. In contrast, psychosocial and economic fears increase the risk of desertion. Conclusion: The fears identified in this new normality when they are not learned to manage are risk factors for desertion, while academic and psychological motivations are protective factors. In the final discussion, educational and health recommendations are provided to prevent dropout.
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Monomeric ubiquitin (Ub) is a 76-amino-acid highly conserved protein found in eukaryotes. The biological activity of Ub first described in the 1970s was extracellular, but it quickly gained relevance due to its intracellular role, i.e., post-translational modification of intracellular proteins (ubiquitination) that regulate numerous eukaryotic cellular processes. In the following years, the extracellular role of Ub was relegated to the background, until a correlation between higher survival rate and increased serum Ub concentrations in patients with sepsis and burns was observed. Although the mechanism of action (MoA) of extracellular ubiquitin (eUb) is not yet well understood, further studies have shown that it may ameliorate the inflammatory response in tissue injury and multiple sclerosis diseases. These observations, compounded with the high stability and low immunogenicity of eUb due to its high conservation in eukaryotes, have made this small protein a relevant candidate for biotherapeutic development. Here, we review the in vitro and in vivo effects of eUb on immunologic, cardiovascular, and nervous systems, and discuss the potential MoAs of eUb as an anti-inflammatory, antimicrobial, and cardio- and brain-protective agent.
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Introduction: Obesity is a chronic medical condition that affects, among others, the cardiovascular and respiratory systems. Interventions for its treatment focus on sustained weight reduction and general health improvement, leaving respiratory management aside. Our objective was to determine the effects of inspiratory muscle training (IMT) in patients with obesity. Methods: A systematic review was performed in Embase, Cochrane Library (CENTRAL), CINAHL, Web of Science, and PubMed/MEDLINE on June 26, 2023. Randomized clinical trials (RCTs), and quasi-randomized clinical trials investigating the effects of IMT in people with obesity were included. Selected studies were screened by two independent reviewers who extracted data and assessed the quality of the evidence. Results: The initial search returned 705 potential studies were included. Ultimately, eight studies met the criteria for eligibility and were included in the review. IMT improves physical capacity [6-minute walk test (6MWT): 44.5 m, 95% CI: 30.5 to 58.5; p < 0.0001] and the strength of the inspiratory muscles [maximal inspiratory pressure (MIP): -28.4 cm H2O, 95% CI: -41.9 to -14.8; p < 0.0001] compared to the controls, without differences in the pulmonary function, body mass index (BMI) and metabolic parameters. Conclusion: Inspiratory muscle training improves physical capacity and inspiratory muscle strength without significant changes in lung function, BMI, and metabolic parameters.Systematic review registration: PROSPERO, identifier CRD42023439625, https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42023439625.
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In Uruguay, the pediatric acute lymphoblastic leukemia (ALL) cure rate is 82.2%, similar to those reported in developed countries. However, many patients suffer adverse effects that could be attributed, in part, to genetic variability. This study aims to identify genetic variants related to drugs administered during the induction phase and analyze their contribution to adverse effects, considering individual genetic ancestry. Ten polymorphisms in five genes (ABCB1, CYP3A5, CEP72, ASNS, and GRIA1) related to prednisone, vincristine, and L-asparaginase were genotyped in 200 patients. Ancestry was determined using 45 ancestry informative markers (AIMs). The sample ancestry was 69.2% European, 20.1% Native American, and 10.7% African, but with high heterogeneity. Mucositis, Cushing syndrome, and neurotoxicity were the only adverse effects linked with genetic variants and ancestry. Mucositis was significantly associated with ASNS (rs3832526; 3R/3R vs. 2R carriers; OR: = 6.88 [1.88-25.14], p = 0.004) and CYP3A5 (non-expressors vs. expressors; OR: 4.55 [1.01-20.15], p = 0.049) genes. Regarding Cushing syndrome, patients with the TA genotype (rs1049674, ASNS) had a higher risk of developing Cushing syndrome than those with the TT genotype (OR: 2.60 [1.23-5.51], p = 0.012). Neurotoxicity was significantly associated with ABCB1 (rs9282564; TC vs. TT; OR: 4.25 [1.47-12.29], p = 0.007). Moreover, patients with <20% Native American ancestry had a lower risk of developing neurotoxicity than those with ≥20% (OR: 0.312 [0.120-0.812], p = 0.017). This study shows the importance of knowing individual genetics to improve the efficacy and safety of acute lymphoblastic leukemia.
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BACKGROUND: Epidermoid cysts are rare benign lesions that originate from remnants of ectodermal epithelial tissue, particularly infrequent in the pediatric population. They exhibit characteristic imaging features, with occasional variations leading to the development of a "white" epidermoid cyst. This transformation results from the presence of protein and lipid material within the cyst, causing intrinsic hyperintensity in T1-weighted images, signal hypointensity in T2-weighted images, and a bright signal in diffusion-weighted imaging. CASE PRESENTATION: We describe the case of a 5-year-old Latina pediatric patient initially diagnosed with a typical epidermoid cyst. After 13 years of follow-up, this typical epidermoid cyst underwent a transformation, becoming a "white" epidermoid cyst. CONCLUSIONS: Epidermoid cysts are rare intracranial lesions. The term "white epidermoid cyst" does not denote a variant; it represents a distinct transformation within an epidermoid cyst due to liquid and protein accumulation. This transformation should be considered in cases with specific imaging characteristics.
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Cisto Epidérmico , Humanos , Criança , Pré-Escolar , Cisto Epidérmico/diagnóstico por imagem , Cisto Epidérmico/cirurgia , Imageamento por Ressonância Magnética/métodos , Imagem de Difusão por Ressonância MagnéticaRESUMO
Certain metals play key roles in infection by the gray mold fungus, Botrytis cinerea. Among them, copper and iron are necessary for redox and catalytic activity of enzymes and metalloproteins, but at high concentrations they are toxic. Understanding the mechanism requires more cell characterization studies for developing new, targeted metal-based fungicides to control fungal diseases on food crops. This study aims to characterize the inhibitory effect of copper and iron on B. cinerea by evaluating mycelial growth, sensitivity to cell wall perturbing agents (congo red and calcofluor white), membrane integrity, adhesion, conidial germination, and virulence. Tests of copper over the range of 2 to 8 mM and iron at 2 to 20 mM revealed that the concentration capable of reducing mycelial growth by 50% (IC50) was 2.87 mM and 9.08 mM for copper and iron, respectively. When mixed at equimolar amounts there was a significant inhibitory effect mostly attributable to copper. The effect of Cu50, Fe50, and Cu50-Fe50 was also studied on the mycelial growth of three wild B. cinerea strains, which were more sensitive to metallic inhibitors. A significant inhibition of conidial germination was correlated with adhesion capacity, indicating potential usefulness in controlling disease at early stages of crop growth. Comparisons of the effects of disruptive agents on the cell wall showed that Cu, Fe, and Cu-Fe did not exert their antifungal effect on the cell wall of B. cinerea. However, a relevant effect was observed on plasma membrane integrity. The pathogenicity test confirmed that virulence was correlated with the individual presence of Cu and Fe. Our results represent an important contribution that could be used to formulate and test metal-based fungicides targeted at early prevention or control of B. cinerea.
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Cobre , Fungicidas Industriais , Cobre/farmacologia , Ferro/farmacologia , Fungicidas Industriais/farmacologia , Produtos AgrícolasRESUMO
We designed a controlled trial protocol that seeks to contribute to cognitive science by studying the effect of thought training on children's executive functions. The study design is a cluster randomized controlled trial, with intra-subject and inter-subject evaluation, with two parallel groups: an experimental group and a TAU control group. With three measures, pre-test, post-test, and follow-up after three months. The participants will be children aged 9 to 11. The allocation will be randomized by groups and not individually. The sample will be a minimum of 44 participants. The primary measures will be neuropsychological tests to assess executive functions. Secondary measures will be a computational thinking test, neuropsychological tests to assess metacognition and attention, and an acceptability scale. The experimental group will participate in the COGNI-MACHINE computational thinking training designed by the first author. The training frequency will be twice a week in 60 min sessions for 12 weeks. The TAU control group will receive computer science classes as usual during the same time as the experimental group. The evaluators taking the measurements will be blinded to the assignment. The investigators in charge of the intervention will be blinded to the results of the evaluations.
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Prompt diagnosis of ST-segment elevation myocardial infarction (STEMI) is essential for initiating timely treatment. MicroRNAs have recently emerged as biomarkers in cardiovascular diseases. This study aimed to evaluate the discriminatory capacity of serum microRNAs in identifying an ischemic origin in patients presenting with chest discomfort to the Emergency Department. The study included 98 participants (78 with STEMI and 20 with nonischemic chest discomfort). Significant differences in the expression levels of miR-133b, miR-126, and miR-155 (but not miR-1, miR-208, and miR-208b) were observed between groups. miR-133b and miR-155 exhibited 97% and 93% sensitivity in identifying STEMI patients, respectively. miR-126 demonstrated a specificity of 90% in identifying STEMI patients. No significant associations were found between microRNAs and occurrence of major adverse cardiovascular events (MACE). However, patients with MACE had higher levels of interleukin (IL)-15, IL-21, IFN-γ-induced protein-10, and N-terminal pro B-type natriuretic peptide compared to non-MACE patients. Overall, there were significant associations among the expression levels of microRNAs. However, microRNAs did not demonstrate associations with either inflammatory markers or cardiovascular risk scores. This study highlights the potential of microRNAs, particularly miR-133b and miR-126, as diagnostic biomarkers for distinguishing patients with STEMI from those presenting with nonischemic chest discomfort to the Emergency Department.
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The effect of high hydrostatic pressure (HHP) and the proteolytic fraction P1G10 from papaya latex was studied to find out whether a synergy exists in the growth inhibition of Botrytis cinerea in grape juice, contributing to the improvement of conservation techniques and extending the shelf life and quality of food products. Grape juice (GJ) diluted to 16 °Brix with a water activity (aw) of 0.980 was prepared from a concentrated GJ and used in this study. Results indicated a 92% growth inhibition of B. cinerea when exposed to 1 mg/mL of P1G10 and 250 MPa/4 min of pressure treatment. The proximate composition and antioxidant compounds present in the GJ were not significantly affected after the treatments. Eight phenolic compounds and two flavonoids in GJ were identified and quantified, with values fluctuating between 12.77 ± 0.51 and 240.40 ± 20.9 mg/L in the control sample (0.1 MPa). The phenolic compounds showed a significant decrease after the applied treatments, with the HHP sample having a content of 65.4 ± 6.9 mg GAE/100 mL GJ. In conclusion, a synergistic effect at moderate HHP of 250 MPa/4 min with the addition of P1G10 was observed, and the successful development of a stable and acceptable GJ product was possible.
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OBJECTIVES: Ceftazidime-avibactam (CAZ-AVI) combines ceftazidime and a reversible ß-lactamase inhibitor that has shown activity against multidrug-resistant (MDR) Enterobacterales and P. aeruginosa. Using data from the Antimicrobial Testing Leadership and Surveillance program (ATLAS), this study examined the in vitro antimicrobial activity of CAZ-AVI and other antibiotics against Gram-negative bacteria collected from Chilean hospitals between 2015 and 2021. METHODS: Clinical isolates of Enterobacterales and P. aeruginosa were collected from three medical centres in Chile. Blood, abdominal fluid, urine, soft tissues, and respiratory tract samples were obtained from infected patients. Minimum inhibitory concentrations using the broth microdilution method were determined for susceptibility testing, and the Clinical and Laboratory Standards Institute (CLSI) breakpoints were used for interpreting the results. Extended-spectrum ß-lactamases (ESBL) and carbapenemase genes were also detected through polymerase chain reaction. RESULTS: A total of 2600 Enterobacterales and 836 P. aeruginosa were analysed. CAZ-AVI was the antibiotic with the highest in vitro activity against Enterobacterales (99.72%). The incidence of carbapenem-resistant Enterobacterales (CRE) was 1.5% (n = 39), and the antibiotics with the best in vitro activity were tigecycline (92.31%), CAZ-AVI (88.57%), and amikacin (79.49%). CAZ-AVI was the antibiotic with the best activity against ESBL-producing Enterobacterales (99.34%) and MDR Enterobacterales (99.31%). For KPC-producing Enterobacterales, susceptibility to amikacin was 100%, whereas susceptibility to CAZ-AVI was 91.67%. Regarding MDR and difficult-to-treat resistance P. aeruginosa, 44.83% and 38.99% were susceptible to CAZ-AVI, respectively. CONCLUSION: CAZ-AVI shows excellent in vitro activity against Enterobacterales in general, CRE, ESBL-producing Enterobacterales, and KPC-producing Enterobacterales. CAZ-AVI is also an option against MDR P. aeruginosa.
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Amicacina , Ceftazidima , Humanos , Ceftazidima/farmacologia , Ceftazidima/uso terapêutico , Chile , Amicacina/farmacologia , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Carbapenêmicos , Pseudomonas aeruginosaRESUMO
We recently reported the isolation and characterization of an anti-SARS-CoV-2 antibody, called IgG-A7, that protects transgenic mice expressing the human angiotensin-converting enzyme 2 (hACE-2) from an infection with SARS-CoV-2 Wuhan. We show here that IgG-A7 protected 100% of the transgenic mice infected with Delta (B.1.617.2) and Omicron (B.1.1.529) at doses of 0.5 and 5 mg/kg, respectively. In addition, we studied the pharmacokinetic (PK) profile and toxicology (Tox) of IgG-A7 in CD-1 mice at single doses of 100 and 200 mg/kg. The PK parameters at these high doses were proportional to the doses, with serum half-life of ~10.5 days. IgG-A7 was well tolerated with no signs of toxicity in urine and blood samples, nor in histopathology analyses. Tissue cross-reactivity (TCR) with a panel of mouse and human tissues showed no evidence of IgG-A7 interaction with the tissues of these species, supporting the PK/Tox results and suggesting that, while IgG-A7 has a broad efficacy profile, it is not toxic in humans. Thus, the information generated in the CD-1 mice as a PK/Tox model complemented with the mouse and human TCR, could be of relevance as an alternative to Non-Human Primates (NHPs) in rapidly emerging viral diseases and/or quickly evolving viruses such as SARS-CoV-2.
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COVID-19 , Animais , Camundongos , SARS-CoV-2 , Anticorpos Antivirais , Camundongos Transgênicos , Anticorpos Neutralizantes , Imunoglobulina G , Receptores de Antígenos de Linfócitos TRESUMO
An analytical study based on Chilean birth records obtained from the Department of Statistics and Health Information (DEIS) was conducted. This study aimed to evaluate temporal trends in preterm births by maternal age in Chile from 1990 to 2018. Results show that the preterm birth rate in 1992 was 5.0% and increased to 7.2% in 2018. The average annual percent change (AAPC) was 1.44. Age groups at the extremes (19 and under and 35 and over) presented the highest rates of preterm birth, both at the beginning and at the end of the study period. The latter group showed a smaller decrease at the beginning (1992 to 1995), with an annual percentage change (APC) of -3.00. The probability of preterm birth in both groups was higher compared to the 20-34 year old group. Although Chile boasts some of the best maternal and child health indicators in the region, repercussions associated with the current postponement of maternity - including preterm birth - must be monitored.
Se realizó un estudio analítico con base en los registros poblacionales de nacimientos en Chile, obtenidos del Departamento de Estadística e Información en Salud (DEIS), con el objetivo de evaluar la tendencia temporal de los partos prematuros en Chile en el periodo 1990-2018, asociado a la edad de la madre. Los resultados muestran que, para el año 1992, la tasa de parto prematuro fue del 5,0%, aumentando a 7,2% en 2018. El promedio del porcentaje del cambio anual (PPCA) fue de 1,44. Los grupos etarios extremos menor o igual de 19 años y 35 y más años fueron los que presentaron las tasas de parto prematuro más altas, tanto al inicio y como al término del periodo, siendo este último grupo el que mostró una menor disminución al inicio del periodo (1992-1995), con porcentaje de cambio anual (PCA) de 3,00. Para ambos grupos, la probabilidad de un parto prematuro fue mayor respecto del grupo de 20 a 34 años. Chile, presenta uno de los mejores indicadores de salud materna e infantil para la región; no obstante, dada la actual postergación de la maternidad, deben vigilarse las repercusiones asociadas, dentro de ellas un nacimiento prematuro.
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Nascimento Prematuro , Recém-Nascido , Gravidez , Criança , Humanos , Feminino , Adulto Jovem , Adulto , Chile/epidemiologia , Nascimento Prematuro/epidemiologia , Nascimento Prematuro/etiologia , Saúde da Criança , Família , Idade MaternaRESUMO
El objetivo de este estudio fue relacionar los efectos del confinamiento (COVID-19), en la salud física y psicológica, en universitarios de Educación física de Chile. La metodología es cuantitativa, transversal y descriptiva; la muestra estuvo constituida por 254 estudiantes pertenecientes a siete universidades chilenas. El 63% de la muestra fueron hombres (n = 160) y 37% mujeres (n = 94). La recogida de la información fue por medio del cuestionario auto informe del Impacto Psicológico del Coronavirus. Los resultados muestran que la variable Actividad Física en confinamiento se relacionó de forma negativa y significativa con la variable de IMC y Uso de Medios de Comunicación. Al relacionarse con Conductas Asociadas al Confinamiento y Escala de Experiencias Positivas ante la Adversidad, fue positiva y significativa; en relación a la Escala de Distres, se correlacionó negativa significativamente, de igual manera con la Escala de interferencia por el Coronavirus y Cuestionario de Impacto Psicológico del Coronavirus. Se concluye que existen efectos negativos para la salud física y psicológica de los estudiantes de Educación física producto del confinamiento y algunos positivos como el autocuidado y sistemas de protección.
The objective of this study was to relate the effects of confinement (COVID-19) on physical and mental health in physical education undergraduate students in Chile. The methodology is quantitative, cross-sectional, and descriptive. The sample consisted of 254 students belonging to seven Chilean universities. Sixty-three percent of the sample were men (n = 160), whereas 37% were women (n = 94). The information was collected through the self-report questionnaire on the Psychological Impact of Coronavirus. The results show that the variable Physical Activity in confinement was negatively and significantly related to the variable of BMI and use of communication media. When relating to behaviors associated with confinement and the Scale of Positive Experiences in the Face of Adversity (EEPA, by its initials in Spanish), it was positive and significant. Concerning the Distress Scale, it was significantly negatively correlated, in the same way with the Coronavirus Interference Scale and the Coronavirus Psychological Impact Questionnaire. It is concluded that there are negative effects on the physical and psychological health of Physical Education students as a result of confinement and some positive ones, such as self-care and protection systems.
O objetivo deste estudo foi relacionar os efeitos do confinamento (COVID-19) na saúde física e psicológica em estudantes universitários de educação física no Chile. A metodologia é quantitativa, transversal, descritiva; A amostra foi composta por 254 estudantes pertencentes a 7 universidades chilenas. 63% da amostra eram homens (n = 160) e 37% mulheres (n = 94) As informações foram coletadas por meio do questionário de autorrelato sobre o Impacto Psicológico do Coronavírus. Os resultados mostram que a variável Atividade Física em confinamento esteve negativa e significativamente relacionada com a variável IMC e Uso de Meios de Comunicação. Quanto aos Comportamentos Associados ao Confinamento e à Escala de Experiências Positivas Face à Adversidade, foi positivo e significativo; em relação à Escala de Aflição, apresentou correlação negativa significativa, da mesma forma com a Escala de Interferência do Coronavírus e o Questionário de Impacto Psicológico do Coronavírus. Conclui-se que existem efeitos negativos na saúde física e psicológica dos alunos de Educação Física decorrentes do confinamento e alguns positivos como o autocuidado e os sistemas de proteção.
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Humanos , Masculino , Feminino , Adulto Jovem , Estudantes/psicologia , Chile , Quarentena , Saúde Mental , Estado Nutricional , Estudos TransversaisRESUMO
PURPOSE: The International Berlin-Frankfurt-Münster (BFM) study group conducted a study on pediatric acute lymphoblastic leukemia (ALL). Minimal residual disease (MRD) was assessed using flow cytometry (FCM), and the impact of early intensification and methotrexate (MTX) dose on survival was evaluated. PATIENTS AND METHODS: We included 6,187 patients younger than 19 years. MRD by FCM refined the risk group definition previously used in the ALL intercontinental-BFM 2002 study on the basis of age, WBC count, unfavorable genetic aberrations, and treatment response measured morphologically. Patients at intermediate risk (IR) and high risk (HR) were randomly assigned to protocol augmented protocol I phase B (IB) versus IB regimen. MTX doses of 2 versus 5 g/m2 every 2 weeks, four times, were evaluated in precursor B-cell-ALL (pcB-ALL) IR. RESULTS: The 5-year event-free survival (EFS ± SE) and overall survival (OS ± SE) rates were 75.2% ± 0.6% and 82.6% ± 0.5%, respectively. Their values in risk groups were standard risk (n = 624), 90.7% ± 1.4% and 94.7% ± 1.1%; IR (n = 4,111), 77.9% ± 0.7% and 85.7% ± 0.6%; and HR (n = 1,452), 60.8% ± 1.5% and 68.4% ± 1.4%, respectively. MRD by FCM was available in 82.6% of cases. The 5-year EFS rates in patients randomly assigned to protocol IB (n = 1,669) and augmented IB (n = 1,620) were 73.6% ± 1.2% and 72.8% ± 1.2%, respectively (P = .55), while those in patients receiving MTX doses of 2 g/m2 (n = 1,056) and MTX 5 g/m2 (n = 1,027) were 78.8% ± 1.4% and 78.9% ± 1.4%, respectively (P = .84). CONCLUSION: The MRDs were successfully assessed using FCM. An MTX dose of 2 g/m2 was effective in preventing relapse in non-HR pcB-ALL. Augmented IB showed no advantages over the standard IB.[Media: see text].
Assuntos
Leucemia-Linfoma Linfoblástico de Células Precursoras B , Leucemia-Linfoma Linfoblástico de Células Precursoras , Criança , Humanos , Lactente , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Metotrexato/uso terapêutico , Fatores de Risco , Leucemia-Linfoma Linfoblástico de Células Precursoras B/tratamento farmacológico , Intervalo Livre de Doença , Resultado do TratamentoRESUMO
We examined 82 fresh fecal samples from American White Pelican (Pelecanus erythrorhynchos) at San Pablo Autopan, Toluca Valley, central Mexico, December 2021 to April 2022. Eggs of Contracaecum spp. were observed in 100%, Capillaria spp. in two (2.5%), Strongyloides spp. in eight (9.7%), and coccidial oocysts in 12 (15%).