Pancreatic Beta Cells
Mostrando 1-12 de 308 artigos, teses e dissertações.
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1. The rs11755527 polymorphism in the BACH2 gene and type 1 diabetes mellitus: case control study in a Brazilian population
ABSTRACT Objective Type 1 diabetes mellitus (T1DM) is an autoimmune disorder caused by a complex interaction between environmental and genetic risk factors. BTB domain and CNC homolog 2 (BACH2) gene encodes a transcription factor that acts on the differentiation and formation of B and T lymphocytes. BACH2 is also involved in the suppression of apoptosis an
Arch. Endocrinol. Metab.. Publicado em: 2020-04
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2. New insights of growth hormone (GH) actions from tissue-specific GH receptor knockouts in mice
ABSTRACT In order to provide new insights into the various activities of GH in specific tissues, recent advances have allowed for the generation of tissue-specific GHR knockout mice. To date, 21 distinct tissue-specific mouse lines have been created and reported in 28 publications. Targeted tissues include liver, muscle, fat, brain, bone, heart, intestine, m
Arch. Endocrinol. Metab.. Publicado em: 10/01/2020
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3. Repercussions of low fructose-drinking water in male rats
Abstract Fructose consumption has increased worldwide, and it has been associated with the development of metabolic diseases such as insulin resistance (IR) and steatosis. The aim was to evaluate if lower fructose concentrations may cause pancreatic structural abnormalities, leading to a glucose intolerance without steatosis in male rats. Young male rats ora
An. Acad. Bras. Ciênc.. Publicado em: 14/02/2019
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4. O efeito pró-apoptótico de oligômeros da amilina humana não é potencializado pela lipotoxicidade em ilhotas pancreáticas de rato em cultura / The pro-apoptotic effect of human amylin oligomers is not potentiated by lipotoxicity in rat pancreatic islets in culture
The amyloid deposit is a common histopathological feature in patients with type 2 diabetes mellitus (T2DM) and it seems to be related to the pancreatic beta cell dysfunction characteristic of this disease. A study previously developed in our laboratory found that human amylin oligomers decrease mRNA expression of the glucose-dependent insulinotropic polypept
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/07/2012
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5. ARHGAP21 inibe a secreção de insulina estimulada por glicose através da modulação aa FAK, CDC42 E PKC dzeta / ARHGAP21 inhibits glucose-stimulated insulin secretion through through FAK, CDC42 and PKC dzeta
Background/Aims: ARHGAP21 is a Rho-GAP that promotes activation of the Rho-GTPase Cdc42 intrinsic factor, which is responsible for the hydrolysis of GTP to GDP and those proteins inactivation. ARHGAP21 associates with PKC? in cardiomyocytes and to the C-terminal portion of FAK in glioblastoma, inhibiting Rho-GTPases and actin cytoskeleton rearrangement. Cdc4
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/06/2011
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6. Proliferação e disfunção da célula beta pancreática em modelo animal de Diabetes Melito tipo 2. Envolvimento da via de sinalização WNT/Beta-Catenina / Pancreatic beta cell proliferation and dysfunction in animal model of type 2 Diabetes Mellitus. Involvement of the WNT/Beta-catenin signaling pathway
Tem havido um grande interesse na determinação das vias envolvidas na proliferação e função/disfunção da célula beta e a aplicação deste conhecimento em terapias moleculares e celulares da diabetes. A patogênese da diabetes melito tipo 2 (T2DM) é complexa, mas frequentemente está associada com obesidade e distúrbios do metabolismo de lipídios
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/04/2011
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7. Hypothyroidism decreases proinsulin gene expression and the attachment of its mRNA and eEF1A protein to the actin cytoskeleton of INS-1E cells
The actions of thyroid hormone (TH) on pancreatic beta cells have not been thoroughly explored, with current knowledge being limited to the modulation of insulin secretion in response to glucose, and beta cell viability by regulation of pro-mitotic and pro-apoptotic factors. Therefore, the effects of TH on proinsulin gene expression are not known. This led u
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-10
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8. Alteração do ciclo menstrual na adolescência: manifestação precoce da Síndrome Metabólica? / Alteration on menstrual cycle in adolescence: early manifestation of Metabolic Syndrome?
Evidences have appeared throughout the last decade that the metabolic syndrome(MS) (increasingly reported among teens) begins in intra-uterine life and its signs and symptoms are already present in adolescence. Nevertheless, specific diagnostic criteria for this age group are missing. The menstrual cycle represents the result of the normal functioning not on
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/07/2010
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9. Alterations in Dexras1 expression mediated by STAT5 and GR cross-talk contribute to the modulation of insulin secretion during pregnancy and lactation. / Alterações na expressão de Dexras1 mediada pela cooperação entre STAT5 e GR contribuem para modulação da secreção de insulina na gestação e lactação.
It is not clear how glucocorticoid receptor (GR) counteracts STAT5 activity during the transition of pregnancy to lactation. Dexras1 is a small G protein activated by dexamethasone (DEX) that controls cell morphology, growth, etc. In the present study we detected Dexras1 expression in pancreatic beta cell. DEX induces Dexras1 expression in RINm5F cells, whic
Publicado em: 2010
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10. Expressão e distribuição celular de proteínas associadas às junções intercelulares no pâncreas endócrino durante o desenvolvimento animal e na diabetes tipo 2 / Cellular expression and distribution of intercellular junction proteins in rodent endocrine pancreas during animal development and type 2 diabetes
As junções intercelulares são especializações da membrana plasmática através das quais células dentro de um tecido podem interagir e aderirem-se umas às outras. Nas ilhotas pancreáticas, as diferentes células endócrinas se interconectam por meio das junções de oclusão, comunicante, aderente e desmossomos. Tais contatos intercelulares parecem s
Publicado em: 2010
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11. A expressão e atividade da NAD(P)H oxidase em ilhotas pancreáticas de ratos tratados com dieta hiperlipídica. / NAD(P)H oxidase expression and activity in pancreatic islets from rats treated with high fat diet.
Feeding animals with high fat diet containing lard causes obesity, insulin resistance and dysfunction of pancreatic beta cells. High fat diet induces oxidative stress and modulates NAD(P)H oxidase expression and activity in many tissues. This enzyme may be involved in many pathophysiological processes. The objective of this study was to evaluate the action o
Publicado em: 2009
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12. Modulation of intracellular signaling pathways in insulin-producing cells lines by INGAP-PP / Analise das vias de sinalização intracelulares em linhagens de celulas produtoras de insulina expostas ao INGAP-PP
The pentadecapeptide comprising the 104-118 aminoacid sequence of the ilotropin-derived Reg3- related islet neogenesis associated protein (INGA-PP) has been implicated in pancreatic beta-cell neogenesis and enhancement of the insulin secretion in pancreatic islets. There is little information regarding the mechanism of action of the polypeptide. The aim of t
Publicado em: 2009