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Mostrando 1-12 de 274 artigos, teses e dissertações.
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1. Polydatin protects H9c2 cells from hypoxia-induced injury via up-regulating long non-coding RNA DGCR5
Polydatin (PD), a monocrystalline polyphenolic drug mainly found in the roots of Polygonum cuspidatum, has various pharmacological activities. Long non-coding RNAs (lncRNA) DiGeorge syndrome critical region gene 5 (DGCR5) was found to participate in the suppression of multiple cancers. Here, we proposed to study the effect of PD on myocardial infarction (MI)
Braz J Med Biol Res. Publicado em: 05/12/2019
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2. Baicalein restrains proliferation, migration, and invasion of human malignant melanoma cells by down-regulating colon cancer associated transcript-1
Baicalein (BAI) is an acknowledged flavonoids compound, which is regarded as a useful therapeutic pharmaceutical for numerous cancers. However, its involvement in melanoma is largely unknown. This study aimed to examine the anti-melanoma function of BAI and unraveled the regulatory mechanism involved. A375 and SK-MEL-28 were treated with BAI for 24 h. Then,
Braz J Med Biol Res. Publicado em: 25/11/2019
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3. Regulation of ghrelin receptor by microbial and inflammatory signals in human osteoblasts
Abstract: Recently, it has been suggested that the anti-inflammatory hormone ghrelin (GHRL) and its receptor GHS-R may play a pivotal role in periodontal health and diseases. However, their exact regulation and effects in periodontitis are not known. The aim of this in-vitro study was to investigate the effect of microbial and inflammatory insults on the GHS
Braz. oral res.. Publicado em: 25/04/2019
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4. Molecular biology of human epidermal receptors, signaling pathways and targeted therapy against cancers: new evidences and old challenges
ABSTRACT Human epidermal receptors (HER1/2/3/4) belong to the class of receptor-type tyrosine kinases. After binding a ligand, dimerization, it will ocurr activation of intracellular kinases after two-dimensional and cytoplasmic tail reciprocal transphosphorylation. This transphosphorylation recruits signaling pathways such as Ras/Raf/MEK/Erk1-2, PI3-K/AKT a
Braz. J. Pharm. Sci.. Publicado em: 20/07/2017
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5. Fatores prognósticos em pacientes com carcinoma epidermóide de laringe estádio clínico T3 tratados por cirurgia, radioterapia ou associações terapêuticas / Prognostic factors in patients with cT3 laryngeal squamous cell carcinoma treated by surgery, radiation or multimodality treatment
The decreased survival recorded for patients with laryngeal cancer in the last decades may be related to changes in patterns of management; in literature a recent debate has been dedicated to the management of clinical stage T3 due to the disseminated use of organ preservation strategies (Hoffman, 2006). Although inclusion criteria for organ preservation gro
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/01/2013
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6. Differential gene expressions of the MAPK signaling pathway in enterovirus 71-infected rhabdomyosarcoma cells
BACKGROUND: Mitogen-activated protein kinase (MAPK) signaling pathway plays an important role in response to viral infection. The aim of this study was to explore the function and mechanism of MAPK signaling pathway in enterovirus 71 (EV71) infection of human rhabdomyosarcoma (RD) cells. METHODS: Apoptosis of RD cells was observed using annexin V-FITC/PI bin
Braz J Infect Dis. Publicado em: 2013-08
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7. Study of Vaccinia and Cowpox viruses' replication in Rac1-N17 dominant-negative cells
Interfering with cellular signal transduction pathways is a common strategy used by many viruses to create a propitious intracellular environment for an efficient replication. Our group has been studying cellular signalling pathways activated by the orthopoxviruses Vaccinia (VACV) and Cowpox (CPXV) and their significance to viral replication. In the present
Mem. Inst. Oswaldo Cruz. Publicado em: 2013-08
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8. Effects of the adipokine chemerin on the vascular reactivity: analysis in the rat aorta / Efeito da adipocina chemerin sobre a reatividade vascular: análise em aortas de rato
Embora seja na obesidade onde se observa hipertrofia e hiperplasia dos adipócitos e aumento da síntese e liberação de adipocinas, condição associada com resistência à insulina e disfunção endotelial, é de suma importância entender os efeitos biológicos de adipocinas, mais especificamente da adipocina chemerin, em condições não patológicas. O
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/09/2012
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9. Mecanismos moleculares envolvidos na diferenciação das SHED (Stem Cells from Exfoliated Deciduous Teeth) em células endoteliais
As células-tronco provenientes da polpa de dentes decíduos esfoliados (SHED) são uma fonte promissora de células-tronco para a terapia regenerativa. Já foi demonstrado que elas podem se diferenciar em células endoteliais, mas os mecanismos envolvidos nesse processo ainda são desconhecidos. Dessa forma, o presente estudo teve como objetivo elucidar os
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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10. Caracterização do papel das proteínas quinases C (PKCs) na proliferação e auto-renovação das células tronco embrionárias murinas / Characterization of the role of protein kinases C (PKC) in proliferation and self-renewal of murine embryonic stem cells
Células tronco embrionárias (CTE) são capazes de proliferar indefinidamente mantendo a sua pluripotência, isto é, a capacidade de se diferenciar em diversos tipos celulares perante estímulos adequados. Esse potencial tem sido intensamente estudado, de modo a permitir a utilização dessas células em terapias de reposição celular. Trabalhos anteriore
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/08/2011
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11. Vias de sinalização intracelular envolvidas no efeito proliferativo de relaxina em células de sertoli / Intracelular signaling pathways involved in the proliferative effect of relaxin in rat Sertoli cells
Relaxin is an insulin-related peptide that activates the G-protein coupled receptor RXFP1. Although relaxin plays an important role in female reproduction its physiological role in the male reproductive system is still unclear. We have previously demonstrated that relaxin and RXFP1 are expressed in testis (FILONZI et al., 2007; CARDOSO et al., 2010). Both re
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/03/2011
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12. Periodic mechanical stress activates MEK1/2-ERK1/2 mitogenic signals in rat chondrocytes through Src and PLCγ1
The mitogenic effects of periodic mechanical stress on chondrocytes have been studied extensively but the mechanisms whereby chondrocytes sense and respond to periodic mechanical stress remain a matter of debate. We explored the signal transduction pathways of chondrocyte proliferation and matrix synthesis under periodic mechanical stress. In particular, we
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-12