319 research outputs found

    Development of children enrolled in preschools in Cuiabá, Mato Grosso State, Brazil

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    O objetivo foi avaliar o desenvolvimento neuropsicomotor de pré-escolares na educação infantil. Estudo de corte transversal, utilizando 38 itens do teste de Denver II. Foram avaliados todos os pré-escolares com idade entre quatro e seis anos incompletos matriculados na Rede Pública Municipal de Ensino de Cuiabá, Mato Grosso, Brasil, no período de agosto 2002 a novembro 2003. Nesse período havia 960 pré-escolares matriculados em 27 creches e duas escolas públicas. Para a análise estatística foi aplicado o teste Ç2 com intervalo de 95% de confiança e ± = 5%. Para calcular os percentis da idade em que os pré-escolares passaram em cada prova foi realizada uma regressão logística. Dos 960 pré-escolares avaliados, 67% apresentaram desempenho normal, 30,2% questionável e 2,8% anormal. Em 27/38 itens avaliados, o percentual de acertos ultrapassou 90%. O desempenho alterado predominou no sexo masculino, no grupo de cinco a seis anos. O desempenho dessa população foi muito semelhante ao dos pré-escolares norte-americanos de Denver, Colorado. O melhor resultado segundo o gênero ocorreu no sexo feminino e segundo a idade no grupo de quatro anos.The aim of this study was to assess the neuropsychomotor development of children enrolled in daycare centers and preschools. This cross-sectional study used 38 items from the Denver II test to assess four and five-year-olds enrolled in the municipal school system in Cuiabá, Mato Grosso State, Brazil, from August 2002 to November 2003. There were 960 children enrolled in 27 daycare centers and two public preschools. Statistical analysis used the Ç2 test with a 95% confidence interval and ± = 5%. Logistic regression was used to calculate the percentages with which the preschoolers passed the test at each respective age. Of the 960 preschoolers tested, 67% showed normal performance, 30.2% borderline, and 2.8% abnormal. In 27 of the 38 items, the proportion of correct answers was greater than 90%. Altered performance was more common in five-year-old boys. Performance in this sample was quite similar to that of preschoolers in Denver, Colorado, USA. The best results by gender were for girls, and by age in four-year-olds

    Physical Activity in Patients with Neuromuscular Disease Three Years after COVID-19, a Longitudinal Survey: The After-Effects of the Quarantine and the Benefits of a Return to a Healthier Life-Style

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    Background: Quarantine was one of the strategies adopted by governments against the spread of COVID-19. This restriction has caused an increase in sedentary behaviors and a decrease in the practice of physical activity (PA), with a consequent negative impact on lifestyle both in healthy people and in those who need constant practice of PA to combat diseases, such as patients suffering from neuromuscular diseases (NMDs). Hence, this study aimed to compare PA levels among patients with NMD during and after quarantine. Methods: An adapted version of the International Physical Activity Questionnaire Short-Form and the Short-Form Health Survey were administered during COVID-19 quarantine (T0) and after 3 years (T1) to 91 Italian patients with NMDs. Results: We found a significant increase in the total PA level at T1, with no significant changes in vigorous-intensity PA. Moreover, a significant decrease in the PA level was found among the patients with different NMDs. No significant changes in physical component scores and mental component scores were detected. Conclusions: Our results suggest that it would be necessary to provide alternative indoor exercise settings to prevent the adoption of sedentary behaviors

    Study clinical-epidemic of patients with the Turner Syndrome users' to SUS in the state of Mato Grosso

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    In the feminine population with short stature with the Turner Syndrome it is a differential obligatory diagnosis this study aims at knowing its clinical epidemic characteristics to help in the planning of the actions of health care in this population. The prevalence in the State of Mato Grosso is unknown and the 17 cases reported were more than expected for a well-known frequency of 1:2000 to 1:5000. A descriptive study of series of patients' cases was accomplished with the Turner Syndrome in using the Growth Hormone with cariotip confirmation filled in the SUS until July 2004. Most of them were from Cuiabá and Várzea Grande, 64,71% were born to term, 23,52% were low weight at birth, 70,59% (n=12/17) presented short stature at the diagnosis and had normal weight (92,31%); 94,12% (n=16/17) was diagnosed over age 6 and the beginning of the treatment was late (7,08 and 15,50 years of age). The family was responsible for 82.35% of the diagnosis suspicion and the confirmation was made mainly by the Pediatrician and the Endocrinologist. In 82.35% of the patients dysmorphical terations reported as the most frequent was the short stature (82.35%) which was the main reason for looking for a doctor. The most frequent type of karyotype presentation was 45X (n=7/17, 41.18%), but most of them mosaicism (n=10/17, 58.82%), with low frequency of solicitation of markers of chromosome Y, 35.29% (n=6/17). The main reactions of the family when they knew about the disease weres adness, a feeling of impotence and concern about the stature. When asked about the use of the Growth Hormone, they reported that it was due to short stature or the Turner Syndrome. 58.82 % reported mild to great difficulties in the access to SUS to get medicine for the treatment due to bureaucratic problems. The annual expenses with the Growth Hormone, in these patients correspond approximately to 16% of the total expense of the State

    An In Vitro Model of Glioma Development

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    Gliomas are the prevalent forms of brain cancer and derive from glial cells. Among them, astrocytomas are the most frequent. Astrocytes are fundamental for most brain functions, as they contribute to neuronal metabolism and neurotransmission. When they acquire cancer properties, their functions are altered, and, in addition, they start invading the brain parenchyma. Thus, a better knowledge of transformed astrocyte molecular properties is essential. With this aim, we previously developed rat astrocyte clones with increasing cancer properties. In this study, we used proteomic analysis to compare the most transformed clone (A-FC6) with normal primary astrocytes. We found that 154 proteins are downregulated and 101 upregulated in the clone. Moreover, 46 proteins are only expressed in the clone and 82 only in the normal cells. Notably, only 11 upregulated/unique proteins are encoded in the duplicated q arm of isochromosome 8 (i(8q)), which cytogenetically characterizes the clone. Since both normal and transformed brain cells release extracellular vesicles (EVs), which might induce epigenetic modifications in the neighboring cells, we also compared EVs released from transformed and normal astrocytes. Interestingly, we found that the clone releases EVs containing proteins, such as matrix metalloproteinase 3 (MMP3), that can modify the extracellular matrix, thus allowing invasion

    A critical assessment of Mus musculus gene function prediction using integrated genomic evidence

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    Background: Several years after sequencing the human genome and the mouse genome, much remains to be discovered about the functions of most human and mouse genes. Computational prediction of gene function promises to help focus limited experimental resources on the most likely hypotheses. Several algorithms using diverse genomic data have been applied to this task in model organisms; however, the performance of such approaches in mammals has not yet been evaluated. Results: In this study, a standardized collection of mouse functional genomic data was assembled; nine bioinformatics teams used this data set to independently train classifiers and generate predictions of function, as defined by Gene Ontology (GO) terms, for 21,603 mouse genes; and the best performing submissions were combined in a single set of predictions. We identified strengths and weaknesses of current functional genomic data sets and compared the performance of function prediction algorithms. This analysis inferred functions for 76% of mouse genes, including 5,000 currently uncharacterized genes. At a recall rate of 20%, a unified set of predictions averaged 41% precision, with 26% of GO terms achieving a precision better than 90%. Conclusion: We performed a systematic evaluation of diverse, independently developed computational approaches for predicting gene function from heterogeneous data sources in mammals. The results show that currently available data for mammals allows predictions with both breadth and accuracy. Importantly, many highly novel predictions emerge for the 38% of mouse genes that remain uncharacterized

    A randomized, open-label, multicentre, phase 2/3 study to evaluate the safety and efficacy of lumiliximab in combination with fludarabine, cyclophosphamide and rituximab versus fludarabine, cyclophosphamide and rituximab alone in subjects with relapsed chronic lymphocytic leukaemia

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    Terrestrial Very-Long-Baseline Atom Interferometry:Workshop Summary

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    This document presents a summary of the 2023 Terrestrial Very-Long-Baseline Atom Interferometry Workshop hosted by CERN. The workshop brought together experts from around the world to discuss the exciting developments in large-scale atom interferometer (AI) prototypes and their potential for detecting ultralight dark matter and gravitational waves. The primary objective of the workshop was to lay the groundwork for an international TVLBAI proto-collaboration. This collaboration aims to unite researchers from different institutions to strategize and secure funding for terrestrial large-scale AI projects. The ultimate goal is to create a roadmap detailing the design and technology choices for one or more km-scale detectors, which will be operational in the mid-2030s. The key sections of this report present the physics case and technical challenges, together with a comprehensive overview of the discussions at the workshop together with the main conclusions

    Search for dark matter produced in association with bottom or top quarks in √s = 13 TeV pp collisions with the ATLAS detector

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    A search for weakly interacting massive particle dark matter produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and miss- ing transverse momentum are considered. The analysis uses 36.1 fb−1 of proton–proton collision data recorded by the ATLAS experiment at √s = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are in- terpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour- neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark-matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross- section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour- charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements
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