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1.
Genes (Basel) ; 15(6)2024 Jun 13.
Artigo em Inglês | MEDLINE | ID: mdl-38927713

RESUMO

Members of the SOX (SRY-related HMG box) family of transcription factors are crucial for embryonic development and cell fate determination. This review investigates the role of SOX3 in cancer, as aberrations in SOX3 expression have been implicated in several cancers, including osteosarcoma, breast, esophageal, endometrial, ovarian, gastric, hepatocellular carcinomas, glioblastoma, and leukemia. These dysregulations modulate key cancer outcomes such as apoptosis, epithelial-mesenchymal transition (EMT), invasion, migration, cell cycle, and proliferation, contributing to cancer development. SOX3 exhibits varied expression patterns correlated with clinicopathological parameters in diverse tumor types. This review aims to elucidate the nuanced role of SOX3 in tumorigenesis, correlating its expression with clinical and pathological characteristics in cancer patients and cellular modelsBy providing a comprehensive exploration of SOX3 involvement in cancer, this review underscores the multifaceted role of SOX3 across distinct tumor types. The complexity uncovered in SOX3 function emphasizes the need for further research to unravel its full potential in cancer therapeutics.


Assuntos
Carcinogênese , Neoplasias , Humanos , Neoplasias/genética , Neoplasias/metabolismo , Neoplasias/patologia , Carcinogênese/genética , Transição Epitelial-Mesenquimal/genética , Fatores de Transcrição SOXB1/genética , Fatores de Transcrição SOXB1/metabolismo , Regulação Neoplásica da Expressão Gênica , Animais
2.
Brain Sci ; 13(8)2023 Aug 05.
Artigo em Inglês | MEDLINE | ID: mdl-37626525

RESUMO

OBJECTIVE: To report a series of atypical presentations of Aicardi-Goutières syndrome. METHODS: Clinical, neuroimaging, and genetic data. RESULTS: We report a series of six unrelated patients (five males) with a subacute loss of developmental milestones, pyramidal signs, and regression of communication abilities, with onset at ages ranging from 7 to 20 months, reaching a nadir after 4 to 24 weeks. A remarkable improvement of lost abilities occurred in the follow-up, and they remained with residual spasticity and dysarthria but preserved cognitive function. Immunization or febrile illness occurred before disease onset in all patients. CSF was normal in two patients, and in four, borderline or mild lymphocytosis was present. A brain CT scan disclosed a subtle basal ganglia calcification in one of six patients. Brain MRI showed asymmetric signal abnormalities of white matter with centrum semi-ovale involvement in five patients and a diffuse white matter abnormality with contrast enhancement in one. Four patients were diagnosed and treated for acute demyelinating encephalomyelitis (ADEM). Brain imaging was markedly improved with one year or more of follow-up (average of 7 years), but patients remained with residual spasticity and dysarthria without cognitive impairment. Demyelination relapse occurred in a single patient four years after the first event. Whole-exome sequencing (WES) was performed in all patients: four of them disclosed biallelic pathogenic variants in RNASEH2B (three homozygous p.Ala177Thr and one compound heterozygous p.Ala177Thr/p.Gln58*) and in two of them the same homozygous deleterious variants in RNASEH2A (p.Ala249Val). CONCLUSIONS: This report expands the phenotype of AGS to include subacute developmental regression with partial clinical and neuroimaging improvement. Those clinical features might be misdiagnosed as ADEM.

3.
Front Psychol ; 14: 1155950, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37179879

RESUMO

Collective actions occur all around the world and, in the last few years, even more frequently. Previous literature has mainly focused on the antecedents of collective actions, but less attention has been given to the consequences of participating in collective action. Moreover, it is still an open question how the consequences of collective action might differ, depending on whether the actions are perceived to succeed or fail. In two studies we seek to address this gap using innovative experimental studies. In Study 1 (N = 368) we manipulated the perceptions of success and failure of a collective action in the context of a real social movement, the Chilean student movement from last decade. In Study 2 (N = 169), in addition to manipulating the outcome, we manipulated actual participation, using a mock environmental organization aiming to create awareness in authorities, to test the causal effect of both participation and success/failure on empowerment, group efficacy, and intentions of future involvement in normative and non-normative collective actions. Results show that current and past participation predict overall participation in the future, however, in Study 2 the manipulated participation was associated with having less intentions of participating in the future. In both studies, perception of success increases group efficacy. In Study 1, we found that when facing failure, participants increase their willingness to participate more in the future as opposed to non-participants that actually decrease theirs. In Study 2, however, failure increases the perception of efficacy for those with a history of non-normative participation. Altogether these results highlight the moderating role of the outcome of collective action to understand the effect of participation on future participation. We discuss these results in light of the methodological innovation and the real world setting in which our studies were conducted.

4.
Artigo em Inglês | MEDLINE | ID: mdl-36901466

RESUMO

BACKGROUND: Currently, and to the best of our knowledge, there is no standardized protocol to measure the effect of low- to moderate-intensity physical exercise on autonomic modulation focused in older people. AIM: Validate a test-retest short-term exercise protocol for measuring the autonomic response through HRV in older people. METHODS: A test-retest study design was used. The participants were selected through intentional non-probabilistic sampling. A total of 105 older people (male: 21.9%; female: 78.1%) were recruited from a local community. The assessment protocol evaluated HRV before and immediately after the 2-min step test. It was performed twice on the same day, considering a time of three chronological hours between the two measurements. RESULTS: The posterior distribution of estimated responses in the Bayesian framework suggests moderate to strong evidence favoring a null effect between measurements. In addition, there was moderate to robust agreement between heart rate variability (HRV) indices and assessments, except for low frequency and very low frequency, which showed weak agreement. CONCLUSIONS: Our results provide moderate to strong evidence for using HRV to measure cardiac autonomic response to moderate exercise, suggesting that it is sufficiently reliable to show similar results to those shown in this test-retest protocol.


Assuntos
Sistema Nervoso Autônomo , Exercício Físico , Humanos , Masculino , Feminino , Idoso , Frequência Cardíaca/fisiologia , Reprodutibilidade dos Testes , Teorema de Bayes , Exercício Físico/fisiologia , Sistema Nervoso Autônomo/fisiologia
5.
GeoJournal ; 88(1): 1081-1102, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-35345631

RESUMO

Censuses and other surveys responsible for gathering socioeconomic data are expensive and time consuming. For this reason, in poor and developing countries there often is a long gap between these surveys, which hinders the appropriate formulation of public policies as well as the development of researches. One possible approach to overcome this challenge for some socioeconomic indicators is to use satellite imagery to estimate these variables, although it is not possible to replace demographic census surveys completely due to its territorial coverage, level of disaggregation of information and large set of information. Even though using orbital images properly requires, at least, a basic remote sensing knowledge level, these images have the advantage of being commonly free and easy to access. In this paper, we use daytime and nighttime satellite imagery and apply a transfer learning technique to estimate average income, GDP per capita and a constructed water index at the city level in two Brazilian states, Bahia and Rio Grande do Sul. The transfer learning approach could explain up to 64% of the variation in city-level variables depending on the state and variable. Although data from different countries may be considerably different, results are consistent with the literature and encouraging as it is a first analysis of its kind for Brazil.

6.
BIS, Bol. Inst. Saúde (Impr.) ; 24(2): 171-178, 2023.
Artigo em Português | CONASS, Sec. Est. Saúde SP, SESSP-ISPROD, Sec. Est. Saúde SP, SESSP-ISACERVO | ID: biblio-1527470

RESUMO

O estudo discute as competências envolvidas na condução de rodas de conversas. Trata-se de um relato analítico e reflexivo desenvolvido a partir das experiências dos estudantes da disciplina de Promoção da Saúde de um programa de Mestrado Profissional em Saúde da Família, Mato Grosso do Sul, Brasil. As experiências foram registradas no formato de relatórios de experiências e enfatizaram o uso de rodas de conversas em Unidades de Saúde da Família. A partir do corpus documental, foram levantados o público- alvo, temáticas/objetivos e quatro competências aplicadas para o desenvolvimento das rodas de conversa, a saber: aprender a conhecer, aprender a fazer, aprender a conviver, e aprender a ser. Observou-se que o público-alvo e as temáticas desenvolvidas nas rodas de conversas foram relacionados a situação epidemiológica do território. Ainda, foi identificado que a técnica é frequentemente baseada no referencial teórico de Paulo Freire, com etapas sistematizadas. As competências de saber conhecer e saber fazer foram desafiantes. As competências saber conviver e ser destacaram- se positivamente nas experiências descritas. Por fim, as experiências revelaram que há competências que precisam ser aprimoradas para a condução de rodas de conversas, com vistas a alcançar o seu potencial transformador.


Assuntos
Atenção Primária à Saúde , Promoção da Saúde , Educação em Saúde
8.
Cambios rev. méd ; 21(1): 802, 30 Junio 2022. tabs.
Artigo em Espanhol | LILACS | ID: biblio-1400592

RESUMO

INTRODUCCIÓN. La incorporación de nuevas tecnologías como la hemodiafiltración en línea, han mejorado parámetros metabólicos/nutricionales en los pacientes que se encontraban en hemodiálisis convencional; en la actualidad no existen datos registrados en la población ecuatoriana que se encuentra sometida a esta clase de tecnologías. OBJETIVO. Comparar la evolución clínico-metabólica de pacientes que estaban en hemodiálisis convencional y cambiaron a hemodiafiltración en línea, determinar si es favorable la migración de la terapia hemodialítica difusiva a convectiva y establecer si el cambio de terapia dialítica ocasionó resultados favorables. MATERIALES Y MÉTODOS. Estudio analítico retrospectivo. Población y muestra de 38 pacientes enfermos renales crónicos en terapia de sustitución renal modalidad hemodiálisis convencional que cambiaron a hemodiafiltración en línea, independientemente del tiempo de diagnóstico y tratamiento en la unidad de hemodiálisis del Hospital de Especialidades Carlos Andrade Marín, Quito-Ecuador, durante el periodo marzo 2016 a marzo 2017. RESULTADOS. Los efectos nutricionales y metabólicos pudieron denotar mayor ponderación de resultados favorables en la modalidad de hemodiafiltración. En la estabilidad hemodinámica y la dosis de diálisis se evidenció una leve superioridad en la modalidad de hemodiafiltración en comparación a la Hemodiálisis. En las dosis administradas de Calcio, Hierro, Eritropoyetina y Calcitriol no existieron diferencias significativas entre las dos modalidades de tratamientos. CONCLUSIÓN. El cambio de modalidad de Hemodiálisis convencional a Hemodiafiltración en línea fue favorable, y mejoró los parámetros clínicos/metabólicos de los pacientes que requieren terapia de sustitución renal.


INTRODUCTION. The incorporation of new technologies such as online haemodiafiltration have improved metabolic/nutritional parameters in patients who were on conventional haemodialysis; At present, there are no registered data on the Ecuadorian population that is subjected to this kind of technology. OBJECTIVE. To compare the clinical-metabolic evolution of patients who were on conventional hemodialysis and changed to online hemodiafiltration, to determine if the migration from diffusive to convective hemodialysis therapy is favorable and to establish if the change in dialysis therapy caused favorable results. MATERIALS AND METHODS. Retrospective analytical study. Population and sample of 38 patients with chronic kidney disease in conventional hemodialysis modality renal replacement therapy who changed to online hemodiafiltration, regardless of the time of diagnosis and treatment in the hemodialysis unit of the Hospital de Especialidades Carlos Andrade Marín, Quito-Ecuador, during the period March 2016 to March 2017. RESULTS. The nutritional and metabolic effects could denote a greater weighting of favorable results in the hemodiafiltration modality. In hemodynamic stability and dialysis dose, a slight superiority was evidenced in the hemodiafiltration modality compared to hemodialysis. In the administered doses of Calcium, Iron, Erythropoietin and Calcitriol there were no significant differences between the two treatment modalities. CONCLUSION. The change of modality from conventional hemodialysis to online hemodiafiltration was favorable, and improved the clinical/metabolic parameters of patients requiring renal replacement therapy.


Assuntos
Humanos , Masculino , Feminino , Ultrafiltração , Diálise Renal , Hemodiafiltração , Terapia de Substituição Renal Contínua , Unidades Hospitalares de Hemodiálise , Nefropatias
10.
Biomedica ; 41(Sp. 2): 103-117, 2021 10 15.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-34669282

RESUMO

Introduction: Rickettsioses are zoonotic diseases transmitted by arthropods acting as vectors and reservoirs. Disease symptoms are nonspecific and, therefore, their clinical diagnosis is difficult. Indirect immunofluorescence (IFA) is the gold standard assay for diagnosis. The interest for conducting studies on these pathologies has resurfaced in Colombia since 2001; besides, previous studies have evidenced cases of rickettsiosis in the north of the department of Caldas. Objective: To establish the frequency of antibodies and seroconversion against Rickettsia spp. In patients consulting health institutions in Caldas, Colombia, from 2016 to 2019. Materials and methods: We conducted a quantitative, observational, and descriptive study on a non-probabilistic sample of 175 patients with symptoms compatible with rickettsiosis who consulted in different municipalities of Caldas, Colombia; IFA was performed to detect antibodies in the acute and convalescent phases against Rickettsia rickettsii, Rickettsia typhi, and Rickettsia felis. Results: The average age of the patients was 31 years. The municipalities with the highest proportion of seropositive cases were Belalcázar, Chinchiná, Filadelfia, La Dorada, La Merced, and Manizales; 66% of patients owned pets and 12% reported arthropod bites. The most frequent signs and symptoms were headache (69.7%), arthromyalgia (60%), and fever (58.2%). IgG seroprevalence was 60% for R. rickettsii, 47.9% for R. typhi, and, and 24% for R. felis. Eight patients presented seroconversion. Conclusion: We found evidence of the circulation of Rickettsia species from the spotted fever group and the typhus group associated with human cases in Caldas.


Introducción. Las rickettsiosis son enfermedades zoonóticas transmitidas por artrópodos que cumplen el papel de vectores y reservorios, y cuyos síntomas son inespecíficos, por lo que su diagnóstico clínico es difícil. La inmunofluorescencia indirecta (IFI) es el método de referencia para el diagnóstico. En Colombia, ha resurgido el interés por su estudio por los casos de rickettsiosis detectados en el norte del departamento de Caldas a partir del 2001. Objetivo. Establecer la frecuencia de anticuerpos y la seroconversión contra Rickettsia spp. en pacientes atendidos en instituciones de salud del departamento de Caldas, Colombia, entre 2016 y 2019. Materiales y métodos. Se hizo un estudio de diseño cuantitativo, observacional y descriptivo, con una muestra no probabilística de 175 pacientes atendidos en diferentes municipios de Caldas, a quienes se les realizó IFI para la detección de anticuerpos en fase aguda y convaleciente contra Rickettsia rickettsii, R. typhi y R. felis. Resultados. El promedio de edad de los pacientes fue de 31 años. Los municipios con mayor proporción de seropositivos fueron Belalcázar, Chinchiná, Filadelfia, La Dorada, La Merced y Manizales. El 66 % tenía mascotas y el 12 % reportó picaduras por artrópodos. Los signos y síntomas más frecuentes fueron cefalea (69,7 %), artromialgia (60 %), y fiebre (58,2 %). La seroprevalencia por IgG fue de 60 % para R. rickettsii, 47,9 % para R. typhi y 24 % para R. felis. Ocho pacientes presentaron seroconversión. Conclusión. Se encontró evidencia de la circulación de rickettsias del grupo de las fiebres manchadas y del grupo del tifus asociada con casos humanos en el departamento de Caldas.


Assuntos
Infecções por Rickettsia , Rickettsia , Adulto , Anticorpos Antibacterianos , Colômbia/epidemiologia , Humanos , Rickettsia/imunologia , Infecções por Rickettsia/epidemiologia , Soroconversão , Estudos Soroepidemiológicos
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