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1.
Dig Dis Sci ; 62(3): 626-632, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-28116593

RESUMO

BACKGROUND: The aim of this study was to compare the American Gastroenterological Association guidelines (AGA criteria), the 2012 (Fukuoka criteria), and 2006 (Sendai criteria) International Consensus Guidelines for the diagnosis of advanced pancreatic cystic neoplasms. METHODS: All patients who underwent surgical resection of a pancreatic cyst from August 2007 through January 2016 were retrospectively analyzed at a single tertiary academic center. Relevant clinical and imaging variables along with pathology results were collected to determine appropriate classification for each guideline. Advanced pancreatic cystic neoplasms were defined by the presence of either high-grade dysplasia or cystic adenocarcinoma. Diagnostic accuracy was measured by ROC analysis. RESULTS: A total of 209 patients were included. Both the AGA and Fukuoka criteria had a higher diagnostic accuracy for advanced neoplastic cysts than the Sendai criteria: AGA ROC 0.76 (95% CI 0.69-0.81), Fukuoka ROC 0.78 (95% CI 0.74-0.82), and Sendai ROC 0.65 (95% CI 0.61-0.69) (p < 0.0001). There was no difference between the Fukuoka and the AGA criteria. While the sensitivity was higher in the Fukuoka criteria compared to the AGA criteria (97.7 vs. 88.6%), the specificity was higher in the AGA criteria compared to the Fukuoka criteria (62.4 vs. 58.2%). CONCLUSIONS: In a surgical series of patients with pancreatic cysts, the AGA and Fukuoka criteria had superior diagnostic accuracy for advanced neoplastic cysts compared to the original Sendai criteria.


Assuntos
Adenocarcinoma , Pâncreas , Pancreatectomia , Cisto Pancreático , Neoplasias Pancreáticas , Guias de Prática Clínica como Assunto/normas , Adenocarcinoma/diagnóstico , Adenocarcinoma/patologia , Idoso , Diagnóstico por Imagem/métodos , Precisão da Medição Dimensional , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Pâncreas/diagnóstico por imagem , Pâncreas/patologia , Pancreatectomia/métodos , Pancreatectomia/estatística & dados numéricos , Cisto Pancreático/diagnóstico , Cisto Pancreático/patologia , Cisto Pancreático/cirurgia , Neoplasias Pancreáticas/diagnóstico , Neoplasias Pancreáticas/epidemiologia , Neoplasias Pancreáticas/patologia , Seleção de Pacientes , Curva ROC , Estudos Retrospectivos , Sensibilidade e Especificidade , Estados Unidos/epidemiologia
2.
Mol Cell Biol ; 30(12): 2887-95, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20385767

RESUMO

Maintenance of energy homeostasis is a fundamental requirement for organismal fitness: defective glucose homeostasis underlies numerous metabolic diseases and cancer. At the cellular level, the ability to sense and adapt to changes in intracellular glucose levels is an essential component of this strategy. The basic helix-loop-helix-leucine zipper (bHLHZip) transcription factor complex MondoA-Mlx plays a central role in the transcriptional response to intracellular glucose concentration. MondoA-Mlx complexes accumulate in the nucleus in response to high intracellular glucose concentrations and are required for 75% of glucose-induced transcription. We show here that, rather than simply controlling nuclear accumulation, glucose is required at two additional steps to stimulate the transcription activation function of MondoA-Mlx complexes. Following nuclear accumulation, glucose is required for MondoA-Mlx occupancy at target promoters. Next, glucose stimulates the recruitment of a histone H3 acetyltransferase to promoter-bound MondoA-Mlx to trigger activation of gene expression. Our experiments establish the mechanistic circuitry by which cells sense and respond transcriptionally to various intracellular glucose levels.


Assuntos
Fatores de Transcrição de Zíper de Leucina e Hélice-Alça-Hélix Básicos/metabolismo , Núcleo Celular/metabolismo , Glucose/farmacologia , Regiões Promotoras Genéticas , Multimerização Proteica/efeitos dos fármacos , Transcrição Gênica/efeitos dos fármacos , Transporte Ativo do Núcleo Celular/efeitos dos fármacos , Animais , Fatores de Transcrição de Zíper de Leucina e Hélice-Alça-Hélix Básicos/química , Proteínas de Transporte/metabolismo , Núcleo Celular/efeitos dos fármacos , Sequência Conservada , Glucose/metabolismo , Histona Acetiltransferases/metabolismo , Histonas/metabolismo , Humanos , Camundongos , Camundongos Endogâmicos C57BL , Modelos Biológicos , Células Musculares/efeitos dos fármacos , Células Musculares/metabolismo , Ligação Proteica/efeitos dos fármacos , Estrutura Terciária de Proteína , Frações Subcelulares/efeitos dos fármacos , Frações Subcelulares/metabolismo , Tiorredoxinas/metabolismo , Ativação Transcricional/efeitos dos fármacos
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