cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7899530.v1
title: Overexpression of ezrin and galectin-3 as predictors of poor prognosis of cervical cancer

description: The aim of this study was to explore the correlation of ezrin and galectin-3 expressions with prognosis in cervical cancer. The immunohistochemical method was applied to detect ezrin and galectin-3 expressions in normal cervix tissues (n=30), cervicitis tissues (n=28), cervical intraepithelial neoplasia (CIN) tissues (classified as I-III, n=89), and cervical carcinoma tissues (n=84). Follow-up was conducted for 5 to 78 months to analyze the correlation of protein expressions with prognosis. Ezrin and galectin-3 expressions in cervical cancer were significantly higher than in normal cervix, cervicitis and CIN (all P&lt;0.05), and expressions in CIN were significantly higher than in normal cervix and cervicitis (both P&lt;0.05). The expressions of ezrin and galectin-3 were both related with histological grade, deep myometrial invasion and lymph node metastasis (all P&lt;0.05). Spearman analysis showed that ezrin expression was positively correlated with galectin-3 expression in cervical cancer (r=0.355, P&lt;0.05). The survival rate of patients with high expressions of ezrin and galectin-3 was significantly lower than those with low expressions of proteins (both P&lt;0.05). The expressions of ezrin and galectin-3, histological grade, depth of stromal invasion, and lymph node metastasis are risk factors affecting the survival rate of patients with cervical cancer. The expressions of ezrin and galectin-3 were correlated with the development of cervical cancer, and overexpressions of those proteins were indicative of poor prognosis in patients with cervical cancer.
DOI: 10.6084/m9.figshare.7899515
title: CIRBP protects H9C2 cells against myocardial ischemia through inhibition of NF-κB pathway

description: Myocardial ischemia is a major cause of death and remains a disease with extremely deficient clinical therapies and a major problem worldwide. Cold inducible RNA-binding protein (CIRBP) is reported to be involved in multiple pathological processes, including myocardial ischemia. However, the molecular mechanisms of myocardial ischemia remain elusive. Here, we first overexpressed CIRBP by transfection of pc-CIRBP (pcDNA3.1 containing coding sequenced for CIRBP) and silenced CIRBP by transfection of small interfering RNA targeting CIRBP (siCIRBP). pcDNA3.1 and the negative control of siCIRBP (siNC) were transfected into H9C2 cells to act as controls. We then constructed a cell model of myocardial ischemia through culturing cells in serum-free medium with hypoxia in H9C2 cells. Subsequently, AlamarBlue assay, flow cytometry and western blot analysis were used, respectively, to assess cell viability, reactive oxygen species (ROS) level and apoptosis, and expression levels of IκBα, p65 and Bcl-3. We demonstrated that CIRBP overexpression promoted cell proliferation (P&lt;0.001), inhibited cell apoptosis (P&lt;0.05), reduced ROS level (P&lt;0.001), down-regulated phosphorylated levels of IκBα and p65 (P&lt;0.01 or P&lt;0.001), and up-regulated expression of Bcl-3 (P&lt;0.001) in H9C2 cells with myocardial ischemia. The influence of CIRBP knockdown yielded opposite results. Our study revealed that CIRBP could protect H9C2 cells against myocardial ischemia through inhibition of NF-κB pathway.
DOI: 10.6084/m9.figshare.7899506
title: Value Flow Map: application and results in the disinfection center

description: ABSTRACT Objective: To identify and eliminate steps that do not add value for customers in the disinfection center. Method: We applied the Lean tool: Value Flow Map, using the concepts of gemba and kaizen in the work process of the disinfection unit for ventilatory care materials, aiming at improving such process. After performing a training with the team on the Lean concepts described above, applying the Value Flow Map in the gemba, analyzing the opportunities for improvement, and approving the changes, the Value Flow Map of the future state was devised and changes were implemented. Result: The time of the disinfection process was reduced in 2h37 and the financial resources required also decreased, in R$ 809.08/month. Conclusion: The application of Lean concepts presented positive results for the elimination of wastages in the disinfection center.
DOI: 10.6084/m9.figshare.7899512
title: CTLA4 enhances the osteogenic differentiation of allogeneic human mesenchymal stem cells in a model of immune activation

description: Allogeneic mesenchymal stem cells (allo-MSCs) have recently garnered increasing interest for their broad clinical therapy applications. Despite this, many studies have shown that allo-MSCs are associated with a high rate of graft rejection unless immunosuppressive therapy is administered to control allo-immune responses. Cytotoxic T-lymphocyte-associated protein 4 (CTLA4) is a co-inhibitory molecule expressed on T cells that mediates the inhibition of T-cell function. Here, we investigated the osteogenic differentiation potency of allo-MSCs in an activated immune system that mimics the in vivo allo-MSC grafting microenvironment and explored the immunomodulatory role of the helper T cell receptor CTLA4 in this process. We found that MSC osteogenic differentiation was inhibited in the presence of the activated immune response and that overexpression of CTLA4 in allo-MSCs suppressed the immune response and promoted osteogenic differentiation. Our results support the application of CTLA4-overexpressing allo-MSCs in bone tissue engineering.
DOI: 10.6084/m9.figshare.7899518.v1
title: Inflammatory and oxidative stress airway markers in premature newborns of hypertensive mothers

description: Although oxidative stress and inflammation are important mechanisms in the pathophysiology of preeclampsia and preterm diseases, their contribution to the respiratory prognosis of premature infants of hypertensive mothers is not known. Our objective was to determine the levels of oxidative stress and inflammation markers in the airways of premature infants born to hypertensive and normotensive mothers, in the first 72 h of life, and to investigate whether they are predictors of bronchopulmonary dysplasia (BPD)/death. This was a prospective study with premature infants less than 34 weeks’ gestation on respiratory support who were stratified into 2 groups: 32 premature infants of hypertensive mothers and 41 of normotensive women, with a mean gestational age of 29 weeks. Exclusion criteria were as follows: diabetes mellitus, chorioamnionitis, malformation, congenital infection, and death within 24 h after birth. The outcome of interest was BPD/death. Malondialdehyde (MDA), nitric oxide (NO), and interleukin 8 (IL-8) were measured in airway aspirates from the first and third days of life and did not differ between the groups. Univariate and multivariate statistical analyses were performed. The concentrations of MDA, NO, and IL-8 were not predictors of BPD/death. Premature infants who developed BPD/death had higher levels of IL-8 in the first days of life. The gestational age, mechanical ventilation, and a small size for gestational age were risk factors for BPD/death. In conclusion, the biomarkers evaluated were not increased in premature infants of hypertensive mothers and were not predictors of BPD/death.
DOI: 10.6084/m9.figshare.7899503
title: Avaliação do serviço de coleta para exame colpocitológico pela escala SERVQUAL

description: ABSTRACT Objective: To analyze women's perception of the quality of the service provided for colposcopy test in the city of Belém (PA), Brazil. Method: Quantitative-descriptive study on 400 women who underwent Pap test on the public healthcare network, using the Service Quality (SERVQUAL) model. We used the Cronbach's alpha index to measure the reliability of the scale, and data were analyzed by quartiles of the gaps of the dimensions: tangibility, responsiveness, reliability, assurance, and empathy. Results: The assurance dimension, corresponding to the knowledge and courtesy of staff, featured the highest degree of importance to users; and empathy, which corresponds to the staff's concern with women's needs, featured the lower degree. The most expressive negative gaps concerned the structure of services and the attitude of healthcare professionals when collecting the material. Conclusion: All gaps featured negative relationship between what was expected and perceived, expressing dissatisfaction regarding the service.
DOI: 10.6084/m9.figshare.7899509
title: Silibinin improves palmitate-induced insulin resistance in C2C12 myotubes by attenuating IRS-1/PI3K/Akt pathway inhibition

description: The present study investigated the effect of silibinin, the principal potential anti-inflammatory flavonoid contained in silymarin, a mixture of flavonolignans extracted from Silybum marianum seeds, on palmitate-induced insulin resistance in C2C12 myotubes and its potential molecular mechanisms. Silibinin prevented the decrease of insulin-stimulated 2-NBDG (2-[N-(7-nitrobenz-2-oxa-1,3-diazol-4-yl)amino]-2-deoxy-D-glucose) uptake and the downregulation of glutamate transporter type 4 (GLUT4) translocation in C2C12 myotubes induced by palmitate. Meanwhile, silibinin suppressed the palmitate-induced decrease of insulin-stimulated Akt Ser473 phosphorylation, which was reversed by wortmannin, a specific inhibitor of phosphatidylinositol-3-kinase (PI3K). We also found that palmitate downregulated insulin-stimulated Tyr632 phosphorylation of insulin receptor substrate 1 (IRS-1) and up-regulated IRS-1 Ser307 phosphorylation. These effects were rebalanced by silibinin. Considering several serine/threonine kinases reported to phosphorylate IRS-1 at Ser307, treatment with silibinin downregulated the phosphorylation of both c-Jun N-terminal kinase (JNK) and nuclear factor-κB kinase β (IKKβ), which was increased by palmitate in C2C12 myotubes mediating inflammatory status, whereas the phosphorylation of PKC-θ was not significantly modulated by silibinin. Collectively, the results indicated that silibinin prevented inhibition of the IRS-1/PI3K/Akt pathway, thus ameliorating palmitate-induced insulin resistance in C2C12 myotubes.
DOI: 10.6084/m9.figshare.7899515.v1
title: CIRBP protects H9C2 cells against myocardial ischemia through inhibition of NF-κB pathway

description: Myocardial ischemia is a major cause of death and remains a disease with extremely deficient clinical therapies and a major problem worldwide. Cold inducible RNA-binding protein (CIRBP) is reported to be involved in multiple pathological processes, including myocardial ischemia. However, the molecular mechanisms of myocardial ischemia remain elusive. Here, we first overexpressed CIRBP by transfection of pc-CIRBP (pcDNA3.1 containing coding sequenced for CIRBP) and silenced CIRBP by transfection of small interfering RNA targeting CIRBP (siCIRBP). pcDNA3.1 and the negative control of siCIRBP (siNC) were transfected into H9C2 cells to act as controls. We then constructed a cell model of myocardial ischemia through culturing cells in serum-free medium with hypoxia in H9C2 cells. Subsequently, AlamarBlue assay, flow cytometry and western blot analysis were used, respectively, to assess cell viability, reactive oxygen species (ROS) level and apoptosis, and expression levels of IκBα, p65 and Bcl-3. We demonstrated that CIRBP overexpression promoted cell proliferation (P&lt;0.001), inhibited cell apoptosis (P&lt;0.05), reduced ROS level (P&lt;0.001), down-regulated phosphorylated levels of IκBα and p65 (P&lt;0.01 or P&lt;0.001), and up-regulated expression of Bcl-3 (P&lt;0.001) in H9C2 cells with myocardial ischemia. The influence of CIRBP knockdown yielded opposite results. Our study revealed that CIRBP could protect H9C2 cells against myocardial ischemia through inhibition of NF-κB pathway.
DOI: 10.6084/m9.figshare.7899500
title: Infant mortality among indigenous and non-indigenous people in the Brazilian microregions

description: ABSTRACT Objective: To compare infant mortality rates of indigenous and non-indigenous children according to microregions in Brazil. Method: The study was based on data from the 2010 Population Census and from the Mortality Information System. Rates and proportions were calculated using data from 558 microregions. Results: Indigenous children presented a higher risk of dying before completing one year of age (60% higher compared to non-indigenous), and rates were higher in microregions with &lt; 1% of indigenous population. Seven out of 10 deaths were in children over one month of age and were mostly caused by infectious diseases. Conclusion: In general, indigenous children die mostly due to preventable causes. The study shows that there are important differences in the levels of infant mortality between indigenous and non-indigenous children in Brazil, even in geographical areas with increased presence of indigenous population.
DOI: 10.6084/m9.figshare.7899503.v1
title: Avaliação do serviço de coleta para exame colpocitológico pela escala SERVQUAL

description: ABSTRACT Objective: To analyze women's perception of the quality of the service provided for colposcopy test in the city of Belém (PA), Brazil. Method: Quantitative-descriptive study on 400 women who underwent Pap test on the public healthcare network, using the Service Quality (SERVQUAL) model. We used the Cronbach's alpha index to measure the reliability of the scale, and data were analyzed by quartiles of the gaps of the dimensions: tangibility, responsiveness, reliability, assurance, and empathy. Results: The assurance dimension, corresponding to the knowledge and courtesy of staff, featured the highest degree of importance to users; and empathy, which corresponds to the staff's concern with women's needs, featured the lower degree. The most expressive negative gaps concerned the structure of services and the attitude of healthcare professionals when collecting the material. Conclusion: All gaps featured negative relationship between what was expected and perceived, expressing dissatisfaction regarding the service.
DOI: 10.6084/m9.figshare.7899506.v1
title: Value Flow Map: application and results in the disinfection center

description: ABSTRACT Objective: To identify and eliminate steps that do not add value for customers in the disinfection center. Method: We applied the Lean tool: Value Flow Map, using the concepts of gemba and kaizen in the work process of the disinfection unit for ventilatory care materials, aiming at improving such process. After performing a training with the team on the Lean concepts described above, applying the Value Flow Map in the gemba, analyzing the opportunities for improvement, and approving the changes, the Value Flow Map of the future state was devised and changes were implemented. Result: The time of the disinfection process was reduced in 2h37 and the financial resources required also decreased, in R$ 809.08/month. Conclusion: The application of Lean concepts presented positive results for the elimination of wastages in the disinfection center.
DOI: 10.6084/m9.figshare.7899509.v1
title: Silibinin improves palmitate-induced insulin resistance in C2C12 myotubes by attenuating IRS-1/PI3K/Akt pathway inhibition

description: The present study investigated the effect of silibinin, the principal potential anti-inflammatory flavonoid contained in silymarin, a mixture of flavonolignans extracted from Silybum marianum seeds, on palmitate-induced insulin resistance in C2C12 myotubes and its potential molecular mechanisms. Silibinin prevented the decrease of insulin-stimulated 2-NBDG (2-[N-(7-nitrobenz-2-oxa-1,3-diazol-4-yl)amino]-2-deoxy-D-glucose) uptake and the downregulation of glutamate transporter type 4 (GLUT4) translocation in C2C12 myotubes induced by palmitate. Meanwhile, silibinin suppressed the palmitate-induced decrease of insulin-stimulated Akt Ser473 phosphorylation, which was reversed by wortmannin, a specific inhibitor of phosphatidylinositol-3-kinase (PI3K). We also found that palmitate downregulated insulin-stimulated Tyr632 phosphorylation of insulin receptor substrate 1 (IRS-1) and up-regulated IRS-1 Ser307 phosphorylation. These effects were rebalanced by silibinin. Considering several serine/threonine kinases reported to phosphorylate IRS-1 at Ser307, treatment with silibinin downregulated the phosphorylation of both c-Jun N-terminal kinase (JNK) and nuclear factor-κB kinase β (IKKβ), which was increased by palmitate in C2C12 myotubes mediating inflammatory status, whereas the phosphorylation of PKC-θ was not significantly modulated by silibinin. Collectively, the results indicated that silibinin prevented inhibition of the IRS-1/PI3K/Akt pathway, thus ameliorating palmitate-induced insulin resistance in C2C12 myotubes.
DOI: 10.6084/m9.figshare.7899512.v1
title: CTLA4 enhances the osteogenic differentiation of allogeneic human mesenchymal stem cells in a model of immune activation

description: Allogeneic mesenchymal stem cells (allo-MSCs) have recently garnered increasing interest for their broad clinical therapy applications. Despite this, many studies have shown that allo-MSCs are associated with a high rate of graft rejection unless immunosuppressive therapy is administered to control allo-immune responses. Cytotoxic T-lymphocyte-associated protein 4 (CTLA4) is a co-inhibitory molecule expressed on T cells that mediates the inhibition of T-cell function. Here, we investigated the osteogenic differentiation potency of allo-MSCs in an activated immune system that mimics the in vivo allo-MSC grafting microenvironment and explored the immunomodulatory role of the helper T cell receptor CTLA4 in this process. We found that MSC osteogenic differentiation was inhibited in the presence of the activated immune response and that overexpression of CTLA4 in allo-MSCs suppressed the immune response and promoted osteogenic differentiation. Our results support the application of CTLA4-overexpressing allo-MSCs in bone tissue engineering.
DOI: 10.6084/m9.figshare.7899488
title: Investigation on the nasal airflow characteristics of anterior nasal cavity stenosis

description: We used a computational fluid dynamics (CFD) model to study the inspiratory airflow profiles of patients with anterior nasal cavity stenosis who underwent curative surgery, by comparing pre- and postoperative airflow characteristics. Twenty patients with severe anterior nasal cavity stenosis, including one case of bilateral stenosis, underwent computed tomography (CT) scans for CFD modelling. The pre- and postoperative airflow characteristics of the nasal cavity were simulated and analyzed. The narrowest area of the nasal cavity in all 20 patients was located within the nasal valve area, and the mean cross-sectional area increased from 0.39 cm2 preoperative to 0.78 cm2 postoperative (P&lt;0.01). Meanwhile, the mean airflow velocity in the nasal valve area decreased from 6.19 m/s to 2.88 m/s (P&lt;0.01). Surgical restoration of the nasal symmetry in the bilateral nasal cavity reduced nasal resistance in the narrow sides from 0.24 Pa.s/mL to 0.11 Pa.s/mL (P&lt;0.01). Numerical simulation of the nasal cavity in patients with anterior nasal cavity stenosis revealed structural changes and the resultant patterns of nasal airflow. Surgery achieved balanced bilateral nasal ventilation and decreased nasal resistance in the narrow region of the nasal cavity. The correction of nasal valve stenosis is not only indispensable for reducing nasal resistance, but also the key to obtain satisfactory curative effect.
DOI: 10.6084/m9.figshare.7899494
title: Treatment with 1,25(OH)2D3 induced HDAC2 expression and reduced NF-κB p65 expression in a rat model of OVA-induced asthma

description: Recent evidence indicates that a deficiency of 1,25-dihydroxyvitamin D3 (1,25[OH]2D3) may influence asthma pathogenesis; however, its roles in regulating specific molecular transcription mechanisms remain unclear. We aimed to investigate the effect of 1,25(OH)2D3 on the expression and enzyme activity of histone deacetylase 2 (HDAC2) and its synergistic effects with dexamethasone (Dx) in the inhibition of inflammatory cytokine secretion in a rat asthma model. Healthy Wistar rats were randomly divided into 6 groups: control, asthma, 1,25(OH)2D3 pretreatment, 1,25(OH)2D3 treatment, Dx treatment, and Dx and 1,25(OH)2D3 treatment. Pulmonary inflammation was induced by ovalbumin (OVA) sensitization and challenge (OVA/OVA). Inflammatory cells and cytokines in the bronchoalveolar lavage (BAL) fluid and histological changes in lung tissue were examined. Nuclear factor kappa B (NF-κB) p65 and HDAC2 expression levels were assessed with Western blot analyses and quantitative reverse-transcriptase polymerase chain reaction (qRT-PCR). Enzyme activity measurements and immunohistochemical detection of HDAC2 were also performed. Our data demonstrated that 1,25(OH)2D3 reduced the airway inflammatory response and the level of inflammatory cytokines in BAL. Although NF-κB p65 expression was attenuated in the pretreatment and treatment groups, the expression and enzyme activity of HDAC2 were increased. In addition, 1,25(OH)2D3 and Dx had synergistic effects on the suppression of total cell infusion, cytokine release, and NF-κB p65 expression, and they also increased HDAC2 expression and activity in OVA/OVA rats. Collectively, our results indicated that 1,25(OH)2D3 might be useful as a novel HDAC2 activator in the treatment of asthma.
DOI: 10.6084/m9.figshare.7899497
title: Knowledge and behavior of professionals about bundled strategies of central venous catheter

description: ABSTRACT Objective: To investigate the factors that influence the knowledge and behavior of professionals of neonatal and pediatric units about bundled strategies of insertion of central venous catheter. Method: This is a cross-sectional study, conducted in one neonatal and one pediatric intensive care units in a public hospital in Belo Horizonte, Brazil, from April to July, 2016. The sample consisted of 255 professionals who answered a structured instrument. Descriptive and comparative analyses were made using the SPSS software. Results: The category nursing professional (p = 0.010), working hours of 12×36 scale (p &lt; 0.001), training as a form of acquiring knowledge (p &lt; 0.001) and participation in training programs (p &lt; 0.001) are associated to greater knowledge about the bundle. Regarding behavior, no significant associations were observed. Conclusion: The study showed that there are factors that influence the knowledge about bundled strategies of insertion of central venous catheter, reflecting the need to consider these practices for making more effective educational practices in health care.
DOI: 10.6084/m9.figshare.7899500.v1
title: Infant mortality among indigenous and non-indigenous people in the Brazilian microregions

description: ABSTRACT Objective: To compare infant mortality rates of indigenous and non-indigenous children according to microregions in Brazil. Method: The study was based on data from the 2010 Population Census and from the Mortality Information System. Rates and proportions were calculated using data from 558 microregions. Results: Indigenous children presented a higher risk of dying before completing one year of age (60% higher compared to non-indigenous), and rates were higher in microregions with &lt; 1% of indigenous population. Seven out of 10 deaths were in children over one month of age and were mostly caused by infectious diseases. Conclusion: In general, indigenous children die mostly due to preventable causes. The study shows that there are important differences in the levels of infant mortality between indigenous and non-indigenous children in Brazil, even in geographical areas with increased presence of indigenous population.