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[PMID]:29446584
[Au] Autor:Sosedova LM; Novikov MA; Titov EA; Rukavishnikov VS
[Ti] Título:[Induction of apoptosis in neurons of white rats under exposure of nanobiocomposite based on ag (0) nanoparticles and arabinogalactan].
[So] Source:Gig Sanit;95(12):1210-13, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:There are presented results of the immunohistochemical study of neural tissue of outbred albino rats exposed for 9 days to the influence of the silver nanobiocomposite consisted of silver nanoparticles encapsulated into a matrix of a natural polymer - arabinogalactan. The research of albino rats was performed in 2 stages: half of the rats in each groups were decapitated immediately after the exposure (early period) and the rest animals - 6 months after the end of exposure (remote period). The impact of the studied substance was proved to cause functional changes in cells of the nervous tissue. After the subacute administration of the nanobiocomposite - argentum-arabinogalactan (nano-Ag-AG) in cells of the nervous tissue of the brain of albino rats the expression of apoptotic and anti-apoptotic protein (caspase-3 and bcl-2) was established to be changed. The number of normal neurons producing protein caspase-3 sharply increases. Herewith the number of immunonegative neurons fairly declines. Along with this there is noted the high level of bcl-2 content, one function ofwhich is the preclusion ofapoptosis. In preparations there is revealed a significant gain in the number of bcl-2 expressing neurons, however, the protective effect of the protein is not fully realized, that leads to the significantly increase in the content of damaged hyperchromatic cells. The evaluation of results of the immunohistochemical study of the nervous tissue of albino rats according to data concerning the proteins caspase-3 and bcl-2 expression permits to make a conclusion about the capability of nanoargentum encapsulated into polymer matrix by passing the blood-brain barrier to induce the triggering apoptosis cascade in neurons of the cerebral cortex.
[Mh] Termos MeSH primário: Encéfalo
Galactanos/farmacologia
Larix
Nanopartículas Metálicas/efeitos adversos
Prata
[Mh] Termos MeSH secundário: Animais
Apoptose/efeitos dos fármacos
Biopolímeros/farmacologia
Barreira Hematoencefálica/metabolismo
Encéfalo/efeitos dos fármacos
Encéfalo/patologia
Encéfalo/fisiopatologia
Caspase 3/metabolismo
Imuno-Histoquímica
Modelos Animais
Preparações de Plantas/farmacologia
Proteínas Proto-Oncogênicas c-bcl-2/metabolismo
Ratos
Prata/efeitos adversos
Prata/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Biopolymers); 0 (Galactans); 0 (Plant Preparations); 0 (Proto-Oncogene Proteins c-bcl-2); 3M4G523W1G (Silver); EC 3.4.22.- (Caspase 3); SL4SX1O487 (arabinogalactan)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180216
[St] Status:MEDLINE


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[PMID]:29399882
[Au] Autor:Mitra S; Chatterjee D; Das A; Gupta K; Radotra BD; Mandal AK
[Ad] Endereço:Department of Histopathology, PGIMER, Chandigarh, India.
[Ti] Título:Urothelial tumors with villous morphology: Histomorphology and role of immunohistochemistry in diagnosis.
[So] Source:APMIS;126(3):191-200, 2018 Mar.
[Is] ISSN:1600-0463
[Cp] País de publicação:Denmark
[La] Idioma:eng
[Ab] Resumo:Villous adenoma and urothelial carcinoma with villoglandular differentiation (UCVGD) are rare urothelial tumours showing villous morphology, the former being a preneoplastic entity and the latter being a malignant one. The detailed immunohistochemistry of these entities is previously not described in the literature. Moreover, a limited biopsy sample of UCVGD or a villous adenoma with or without adenocarcinoma may be difficult to distinguish on the basis of the histomorphology alone. An immunohistochemical panel comprising of GATA3, p63, ß-catenin, CK7 and CK20 was performed on five cases of UCVGD and three cases of villous adenoma with the aim of studying the expression of the proteins thereby aiding in the diagnosis of these entities in a limited surgical pathology specimen. The mean age of UCVGD was 66.8 years and all the patients were male. All the cases of UCVGD were associated with high grade papillary urothelial carcinoma with lamina propria invasion. The immunohistochemical panel showed strong nuclear GATA3 expression in the urothelial component of UCVGD. Interestingly, the high grade and the low grade villoglandular components of UCVGD also expressed GATA3 (nuclear) with a progressive loss of expression from the high grade to the low grade component. The villous adenomas showed negativity or aberrant cytoplasmic positivity for GATA3. The ß-catenin showed a gradual loss of membranous expression from villous adenoma to low grade and high grade villoglandular components of UCVGD with a patchy membranous expression in the urothelial component of the UCVGD. p63 showed strong nuclear positivity in the urothelial component and uniform negativity in the villous adenoma and villoglandular component of UCVGD irrespective of its grade, thereby distinguishing the villoglandular component from the urothelial component. The urothelial component of UCVGD showed strong membranous CK7 expression and was higher than the CK20 expression in the urothelial component. In contrast, CK20 expression was higher in villous adenoma as compared to CK7. There was no difference in the expression of CK7 and CK20 in the villoglandular components and low grade and high grade villoglandular areas. The above-mentioned immunohistochemical pattern may help to distinguish the UCVGD from the villous adenoma.
[Mh] Termos MeSH primário: Adenoma Viloso/diagnóstico
Fator de Transcrição GATA3/metabolismo
Queratina-7/metabolismo
Proteínas de Membrana/metabolismo
Neoplasias Urológicas/diagnóstico
beta Catenina/metabolismo
[Mh] Termos MeSH secundário: Adenoma Viloso/patologia
Idoso
Biomarcadores Tumorais/metabolismo
Feminino
Hematúria/patologia
Seres Humanos
Imuno-Histoquímica
Queratina-20/metabolismo
Masculino
Meia-Idade
Neoplasias Urológicas/patologia
Urotélio/patologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Biomarkers, Tumor); 0 (CKAP4 protein, human); 0 (GATA3 Transcription Factor); 0 (GATA3 protein, human); 0 (KRT20 protein, human); 0 (KRT7 protein, human); 0 (Keratin-20); 0 (Keratin-7); 0 (Membrane Proteins); 0 (beta Catenin)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180206
[St] Status:MEDLINE
[do] DOI:10.1111/apm.12799


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[PMID]:29362889
[Au] Autor:Gaudio F; Tamma R; Ingravallo G; Perrone T; Laddaga FE; De Candia M; Maiorano E; Ribatti D; Specchia G
[Ad] Endereço:Department of Emergency and Organ Transplantation (D.E.T.O.), Hematology Section, University of Bari, Bari, Italy. fragaudio@alice.it.
[Ti] Título:Computer-driven quantitative image analysis in the assessment of tumor cell and T cell features in diffuse large B cell lymphomas.
[So] Source:Ann Hematol;97(4):663-668, 2018 Apr.
[Is] ISSN:1432-0584
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Diffuse large B cell lymphoma (DLBCL) is recognized as the most common non-Hodgkin lymphoma subtype. Advanced high-resolution digital scans of pathology slides have enabled the development of computer-based image analysis algorithms that may assist pathologists in quantifying immunohistochemical stains. In this retrospective study, we reviewed data from 29 patients affected by DLBCL. In order to evaluate the number of tumor cells and microenvironment T cells, we performed an analysis of CD20, Ki67, and CD3 counts, assessed with the Positive Pixel Count algorithm embedded in the Aperio ImageScope software. A lower tumor cell count was observed in patients with a non-germinal center immunophenotype, high LDH, splenomegaly and an IPI ≥ 3. A lower number of CD3 was observed in patients with bulky disease, an IPI ≥ 3 and disease stage 3-4. Overall, these data confirm that quantitative analysis of the tumor cells and of the tumor microenvironment by means of computer-driven quantitative image analysis may add new information in DLBCL diagnosis.
[Mh] Termos MeSH primário: Linfócitos B/patologia
Interpretação de Imagem Assistida por Computador
Linfonodos/diagnóstico por imagem
Linfoma Difuso de Grandes Células B/diagnóstico por imagem
Linfócitos T/patologia
[Mh] Termos MeSH secundário: Adulto
Idoso
Idoso de 80 Anos ou mais
Algoritmos
Antígenos CD20/metabolismo
Linfócitos B/imunologia
Linfócitos B/metabolismo
Complexo CD3/metabolismo
Feminino
Centro Germinativo/imunologia
Centro Germinativo/metabolismo
Centro Germinativo/patologia
Seres Humanos
Imuno-Histoquímica
Antígeno Ki-67/metabolismo
Linfonodos/imunologia
Linfonodos/metabolismo
Linfonodos/patologia
Linfoma Difuso de Grandes Células B/imunologia
Linfoma Difuso de Grandes Células B/metabolismo
Linfoma Difuso de Grandes Células B/patologia
Masculino
Meia-Idade
Estadiamento de Neoplasias
Prognóstico
Estudos Retrospectivos
Linfócitos T/imunologia
Linfócitos T/metabolismo
Microambiente Tumoral
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antigens, CD20); 0 (CD3 Complex); 0 (Ki-67 Antigen)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180125
[St] Status:MEDLINE
[do] DOI:10.1007/s00277-017-3212-6


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[PMID]:28742247
[Au] Autor:Zhiwei W; Yuan J; Yihui Y; Xin H; Jingtao C; Lei S; Yongjian D
[Ti] Título:Ventana immunohistochemistry assay for anaplastic lymphoma kinase gene rearrangement detection in patients with non-small cell lung cancer: A meta-analysis.
[So] Source:Thorac Cancer;8(5):471-476, 2017 Sep.
[Is] ISSN:1759-7714
[Cp] País de publicação:Singapore
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: The aim of this study was to evaluate the diagnostic value of Ventana immunohistochemistry (IHC) assay for anaplastic lymphoma kinase (ALK) gene rearrangement screening in patients with non-small cell lung cancer (NSCLC). METHODS: Open published studies that reported the diagnostic performance of Ventana IHC assay for ALK gene rearrangement detection in NSCLC patients were extracted from PubMed, Embase, Google scholar, Wanfang, and China National Knowledge Infrastructure. The general information and number of true positive (tp), false positive (fp), false negative (fn), and true negative (tn) cases identified by Ventana IHC assay were extracted. The diagnostic sensitivity, specificity, positive likelihood ratio (+lr), negative likelihood ratio (-lr), diagnostic odds ratio (dor) and the summary receiver operating characteristic (ROC) curve were calculated using Stata 11.0 software. RESULTS: Ten studies, including 240 ALK positive and 1973 ALK negative NSCLC patients were included in this meta-analysis. The pooled diagnostic sensitivity, specificity, +lr, -lr, and dor were 0.94 (95% confidence interval [CI] 0.85-0.98), 1.00 (95% CI 0.99-1.00), 859.61 (95% CI 60.81-1200.00), 0.06 (95% CI 0.03-0.16), and 1400.00 (95% CI 813.29-23 000.00), respectively. The area under the ROC curve was 0.996 for Ventana IHC assay in detecting ALK gene rearrangement in NSCLC patients. CONCLUSION: The sensitivity and specificity of Ventana IHC assay for the detection of ALK gene rearrangement were high, thus Ventana IHC could substitute fluorescence in situ hybridization for the screening of ALK+ NSCLC patients.
[Mh] Termos MeSH primário: Carcinoma Pulmonar de Células não Pequenas/metabolismo
Rearranjo Gênico
Neoplasias Pulmonares/metabolismo
Receptores Proteína Tirosina Quinases/metabolismo
[Mh] Termos MeSH secundário: Carcinoma Pulmonar de Células não Pequenas/genética
Seres Humanos
Imuno-Histoquímica/métodos
Neoplasias Pulmonares/genética
Proteínas de Fusão Oncogênicas/metabolismo
Curva ROC
Receptores Proteína Tirosina Quinases/genética
Sensibilidade e Especificidade
[Pt] Tipo de publicação:JOURNAL ARTICLE; META-ANALYSIS
[Nm] Nome de substância:
0 (Oncogene Proteins, Fusion); EC 2.7.10.1 (Receptor Protein-Tyrosine Kinases); EC 2.7.10.1 (anaplastic lymphoma kinase)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170726
[St] Status:MEDLINE
[do] DOI:10.1111/1759-7714.12468


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[PMID]:29270670
[Au] Autor:Lv C; Wang H; Tong Y; Yin H; Wang D; Yan Z; Liang Y; Wu D; Su Q
[Ad] Endereço:Department of General Surgery, Shengjing Hospital Affiliated to China Medical University, Shenyang City, Liaoning Province, 110004, People's Republic of China.
[Ti] Título:The function of BTG3 in colorectal cancer cells and its possible signaling pathway.
[So] Source:J Cancer Res Clin Oncol;144(2):295-308, 2018 Feb.
[Is] ISSN:1432-1335
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:PURPOSE: B-cell translocation gene 3 (BTG3) has been identified as a candidate driver gene for various cancers, but its specific role in colorectal cancer (CRC) is poorly understood. We aimed to investigate the relationship between expression of BTG3 and clinicopathological features and prognosis, as well as to explore the effects and the role of a possible BTG3 molecular mechanism on aggressive colorectal cancer behavior. METHODS: BTG3 expression was assessed by immunohistochemistry (IHC) on specimens from 140 patients with CRC. The association of BTG3 expression with clinicopathological features was examined. To confirm the biological role of BTG3 in CRC, two CRC cell lines expressing BTG3 were used and BTG3 expression was knocked down by shRNA. CCK-8, cell cycle, apoptosis, migration, and invasion assays were performed. The influence of BTG3 knockdown was further investigated by genomic microarray to uncover the potential molecular mechanisms underlying BTG3-mediated CRC development and progression. RESULTS: BTG3 was downregulated in colorectal cancer tissues and positively correlated with pathological classification (p = 0.037), depth of invasion (p = 0.016), distant metastasis (p = 0.024), TNM stage (p = 0.007), and overall survival (OS) and disease-free survival (DFS). BTG3 knockdown promoted cell proliferation, migration, invasion, relieved G2 arrest, and inhibited apoptosis in HCT116 and LoVo cells. A genomic microarray analysis showed that numerous tumor-associated signaling pathways and oncogenes were altered by BTG3 knockdown. At the mRNA level, nine genes referred to the extracellular-regulated kinase/mitogen-activated protein kinase pathway were differentially expressed. Western blotting revealed that BTG3 knockdown upregulated PAK2, RPS6KA5, YWHAB, and signal transducer and activator of transcription (STAT)3 protein levels, but downregulated RAP1A, DUSP6, and STAT1 protein expression, which was consistent with the genomic microarray data. CONCLUSIONS: BTG3 expression might contribute to CRC carcinogenesis. BTG3 knockdown might strengthen the aggressive colorectal cancer behavior.
[Mh] Termos MeSH primário: Neoplasias Colorretais/metabolismo
Proteínas/metabolismo
[Mh] Termos MeSH secundário: Linhagem Celular Tumoral
Movimento Celular/fisiologia
Proliferação Celular/fisiologia
Neoplasias Colorretais/genética
Neoplasias Colorretais/patologia
Regulação para Baixo
Feminino
Técnicas de Silenciamento de Genes
Células HCT116
Células HT29
Seres Humanos
Imuno-Histoquímica
Masculino
Meia-Idade
Inclusão em Parafina
Proteínas/genética
Transdução de Sinais
Células Tumorais Cultivadas
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (BTG3 protein, human); 0 (Proteins)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171223
[St] Status:MEDLINE
[do] DOI:10.1007/s00432-017-2561-9


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[PMID]:29267673
[Au] Autor:Yan Y; Qi S; Gong SQ; Shang G; Zhao Y
[Ad] Endereço:Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Department of Pediatric Dentistry, Shanghai, China.
[Ti] Título:Effect of CRABP2 on the proliferation and odontoblastic differentiation of hDPSCs.
[So] Source:Braz Oral Res;31:e112, 2017 Dec 18.
[Is] ISSN:1807-3107
[Cp] País de publicação:Brazil
[La] Idioma:eng
[Ab] Resumo:Cellular retinoic acid-binding protein 2 (CRABP2) has been detected in several organs during embryonic development. Recent studies have demonstrated that CRABP2 plays important roles in the retinoic acid, ß-catenin and Notch signaling pathways, as well as in the interaction between epithelial and mesenchymal cells, which are important for human dental pulp stem cells (hDPSCs) and tooth development. In the present study, the expression of CRABP2 during mouse molar development and the role of CRABP2 in hDPSC odontoblastic differentiation were evaluated. CRABP2 was gradually decreased during the development of the first maxillary molar, which exhibited the same trend as the expression of CRABP2 during the odontoblastic induction of hDPSCs. CRABP2 knockdown inhibited the proliferative ability of hDPSCs, while it enhanced odontoblastic differentiation via promoting mineralization nodule formation and upregulating the activity of alkaline phosphatase and the expression of mineralization-related genes. The present study uncovered a novel function of CRABP2 in hDPSCs. Our data suggest that CRABP2 may act as a regulator during the proliferation and differentiation of hDPSCs.
[Mh] Termos MeSH primário: Diferenciação Celular/fisiologia
Proliferação Celular/fisiologia
Polpa Dentária/citologia
Odontoblastos/fisiologia
Receptores do Ácido Retinoico/fisiologia
Células-Tronco/fisiologia
[Mh] Termos MeSH secundário: Fosfatase Alcalina
Análise de Variância
Animais
Antraquinonas
Western Blotting
Comunicação Celular
Células Cultivadas
Corantes
Regulação para Baixo/fisiologia
Feminino
Seres Humanos
Imuno-Histoquímica
Masculino
Camundongos Endogâmicos C57BL
Receptores do Ácido Retinoico/análise
Valores de Referência
Reação em Cadeia da Polimerase Via Transcriptase Reversa
Fatores de Tempo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anthraquinones); 0 (Coloring Agents); 0 (Receptors, Retinoic Acid); 0 (retinoic acid binding protein II, cellular); 60MEW57T9G (alizarin); EC 3.1.3.1 (Alkaline Phosphatase)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:D; IM
[Da] Data de entrada para processamento:171222
[St] Status:MEDLINE


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[PMID]:29267667
[Au] Autor:Silva LABD; Sá MAR; Melo RA; Pereira JDS; Silveira ÉJDD; Miguel MCDC
[Ad] Endereço:Universidade Federal do Rio Grande do Norte - UFRN, Postgraduate Program in Oral Pathology, Natal, RN, Brazil.
[Ti] Título:Analysis of CD57+ natural killer cells and CD8+ T lymphocytes in periapical granulomas and radicular cysts.
[So] Source:Braz Oral Res;31:e106, 2017 Dec 18.
[Is] ISSN:1807-3107
[Cp] País de publicação:Brazil
[La] Idioma:eng
[Ab] Resumo:The aim of this study was to compare the number of CD57+ natural killer (NK) cells and CD8+ T lymphocytes between periapical granulomas (PGs) and radicular cysts (RCs). Twenty-fives cases of PGs and 25 of RCs were submitted to histological analysis and immunohistochemistry using anti-CD57 and anti-CD8 biomarkers. Positive cells were counted in 10 fields (400× magnification) and the median value was calculated for each case. Statistical tests were used to evaluate differences in the number of CD57+ NK cells and CD8+ T lymphocytes according to type of lesion, intensity of the infiltrate and thickness of the lining epithelium. The number of CD57+ NK cells and CD8+ T lymphocytes was higher in PGs than in RCs (p = 0.129 and p = 0.541, respectively). Comparison of the number of CD57+ NK cells in atrophic and hyperplastic epithelium revealed a larger number of cells in the atrophic epithelium (p = 0.042). A larger number of CD57+ NK cells and CD8+ T lymphocytes were observed in grade III infiltrates compared to grade I/II (p = 0.145 and p = 0.725, respectively). CD8+ T lymphocytes were more prevalent than CD57+ NK cells in most cases when PGs and RCs were analyzed separately or in combination (p < 0.0001). CD57+ NK cells and CD8+ T lymphocytes play a key role in antiviral defense and the presence of these cells supports evidence suggesting the participation of these microorganisms in the pathogenesis of PGs and RCs. The response mediated by CD8+ T lymphocytes was more frequent, indicating greater participation of the adaptive immunity in these chronic lesions.
[Mh] Termos MeSH primário: Antígenos CD57/análise
Linfócitos T CD8-Positivos/patologia
Células Matadoras Naturais/patologia
Granuloma Periapical/patologia
Cisto Radicular/patologia
[Mh] Termos MeSH secundário: Adolescente
Adulto
Idoso
Biomarcadores/análise
Contagem de Células
Epitélio
Feminino
Seres Humanos
Imuno-Histoquímica
Masculino
Meia-Idade
Granuloma Periapical/imunologia
Cisto Radicular/imunologia
Valores de Referência
Índice de Gravidade de Doença
Estatísticas não Paramétricas
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Biomarkers); 0 (CD57 Antigens)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:D; IM
[Da] Data de entrada para processamento:171222
[St] Status:MEDLINE


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[PMID]:29267504
[Au] Autor:Mendes GA; Haag T; Trott G; Rech CGSL; Ferreira NP; Oliveira MC; Kohek MB; Pereira-Lima JFS
[Ad] Endereço:Programa de Pós-Graduação em Patologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brasil.
[Ti] Título:Expression of E-cadherin, Slug and NCAM and its relationship to tumor invasiveness in patients with acromegaly.
[So] Source:Braz J Med Biol Res;51(2):e6808, 2017 Dec 11.
[Is] ISSN:1414-431X
[Cp] País de publicação:Brazil
[La] Idioma:eng
[Ab] Resumo:Pituitary adenomas account for 10-15% of primary intracranial tumors. Growth hormone (GH)-secreting adenomas account for 13% of all pituitary adenomas and cause acromegaly. These tumors can be aggressive, invade surrounding structures and are highly recurrent. The objective of this study was to evaluate E-cadherin, Slug and neural cell adhesion molecule (NCAM) expression in GH-secreting pituitary adenomas and its relationship to tumor invasiveness. A cross-sectional study of patients who underwent hypophysectomy due to GH-secreting pituitary adenoma from April 2007 to December 2014 was carried out. The medical records were reviewed to collect clinical data. Immediately after surgery, tumor samples were frozen in liquid nitrogen and stored in a biofreezer at -80°C for assessment of E-cadherin 1 (CDH1), SLUG (SNAI2), and NCAM (NCAM1) by real-time PCR. The samples were fixed in formalin and embedded in paraffin for immunohistochemical analysis of E-cadherin and NCAM. Thirty-five patients with acromegaly were included in the study. Of these, 65.7% had invasive tumors. Immunohistochemically, E-cadherin was expressed in 96.7% of patients, and NCAM in 80% of patients. There was no statistically significant relationship between tumor grade or invasiveness and immunohistochemical expression of these markers. Regarding gene expression, 50% of cases expressed CDH1, none expressed SNAI2, and 53.3% expressed NCAM1. There was no statistically significant relationship between tumor grade or invasiveness and gene expression of CDH1, SNAI2, and NCAM1. The absence of Slug overexpression and of E-cadherin and NCAM suppression suggests that expression of these markers is not associated with tumor invasiveness in GH-secreting pituitary adenomas.
[Mh] Termos MeSH primário: Acromegalia/patologia
Adenoma/patologia
Caderinas/análise
Moléculas de Adesão de Célula Nervosa/análise
Neoplasias Hipofisárias/patologia
Fatores de Transcrição da Família Snail/análise
[Mh] Termos MeSH secundário: Acromegalia/genética
Acromegalia/metabolismo
Adenoma/química
Adenoma/genética
Adolescente
Adulto
Idoso
Biomarcadores Tumorais/análise
Antígeno CD56/análise
Estudos Transversais
Feminino
Expressão Gênica
Seres Humanos
Imuno-Histoquímica
Masculino
Meia-Idade
Gradação de Tumores
Invasividade Neoplásica
Neoplasias Hipofisárias/química
Neoplasias Hipofisárias/genética
Reação em Cadeia da Polimerase em Tempo Real
Estatísticas não Paramétricas
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Biomarkers, Tumor); 0 (CD56 Antigen); 0 (Cadherins); 0 (NCAM1 protein, human); 0 (Neural Cell Adhesion Molecules); 0 (SNAI1 protein, human); 0 (Snail Family Transcription Factors)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171222
[St] Status:MEDLINE


  9 / 275342 MEDLINE  
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Texto completo SciELO Brasil
[PMID]:29267497
[Au] Autor:Caires A; Fernandes GS; Leme AM; Castino B; Pessoa EA; Fernandes SM; Fonseca CD; Vattimo MF; Schor N; Borges FT
[Ad] Endereço:Disciplina de Nefrologia, Departamento de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brasil.
[Ti] Título:Endothelin-1 receptor antagonists protect the kidney against the nephrotoxicity induced by cyclosporine-A in normotensive and hypertensive rats.
[So] Source:Braz J Med Biol Res;51(2):e6373, 2017 Dec 11.
[Is] ISSN:1414-431X
[Cp] País de publicação:Brazil
[La] Idioma:eng
[Ab] Resumo:Cyclosporin-A (CsA) is an immunosuppressant associated with acute kidney injury and chronic kidney disease. Nephrotoxicity associated with CsA involves the increase in afferent and efferent arteriole resistance, decreased renal blood flow (RBF) and glomerular filtration. The aim of this study was to evaluate the effect of Endothelin-1 (ET-1) receptor blockade with bosentan (BOS) and macitentan (MAC) antagonists on altered renal function induced by CsA in normotensive and hypertensive animals. Wistar and genetically hypertensive rats (SHR) were separated into control group, CsA group that received intraperitoneal injections of CsA (40 mg/kg) for 15 days, CsA+BOS and CsA+MAC that received CsA and BOS (5 mg/kg) or MAC (25 mg/kg) by gavage for 15 days. Plasma creatinine and urea, mean arterial pressure (MAP), RBF and renal vascular resistance (RVR), and immunohistochemistry for ET-1 in the kidney cortex were measured. CsA decreased renal function, as shown by increased creatinine and urea. There was a decrease in RBF and an increase in MAP and RVR in normotensive and hypertensive animals. These effects were partially reversed by ET-1 antagonists, especially in SHR where increased ET-1 production was observed in the kidney. Most MAC effects were similar to BOS, but BOS seemed to be better at reversing cyclosporine-induced changes in renal function in hypertensive animals. The results of this work suggested the direct participation of ET-1 in renal hemodynamics changes induced by cyclosporin in normotensive and hypertensive rats. The antagonists of ET-1 MAC and BOS reversed part of these effects.
[Mh] Termos MeSH primário: Lesão Renal Aguda/induzido quimicamente
Lesão Renal Aguda/prevenção & controle
Ciclosporina/toxicidade
Antagonistas do Receptor de Endotelina A/farmacologia
Imunossupressores/toxicidade
Pirimidinas/farmacologia
Sulfonamidas/farmacologia
[Mh] Termos MeSH secundário: Lesão Renal Aguda/fisiopatologia
Animais
Creatinina/sangue
Antagonistas do Receptor de Endotelina A/uso terapêutico
Hemodinâmica
Immunoblotting
Imuno-Histoquímica
Rim/efeitos dos fármacos
Rim/fisiopatologia
Masculino
Estresse Oxidativo/fisiologia
Substâncias Protetoras/farmacologia
Substâncias Protetoras/uso terapêutico
Pirimidinas/uso terapêutico
Ratos Endogâmicos SHR
Ratos Wistar
Reprodutibilidade dos Testes
Sulfonamidas/uso terapêutico
Resultado do Tratamento
Ureia/sangue
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Endothelin A Receptor Antagonists); 0 (Immunosuppressive Agents); 0 (Protective Agents); 0 (Pyrimidines); 0 (Sulfonamides); 83HN0GTJ6D (Cyclosporine); 8W8T17847W (Urea); AYI8EX34EU (Creatinine); Q326023R30 (bosentan); Z9K9Y9WMVL (macitentan)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171222
[St] Status:MEDLINE


  10 / 275342 MEDLINE  
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[PMID]:29203758
[Au] Autor:Stefanski M; Brulinski K; Stefanska M
[Ad] Endereço:Oddzial Chirurgii Klatki Piersiowej, Centrum Pulmonologii I Torakochirurgii, Bystra, Polska.
[Ti] Título:[Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia (dipnech) - an overview of the cases diagnosed at the department of thoracic surgery in the years 2010-2014].
[So] Source:Wiad Lek;70(5):1005-1012, 2017.
[Is] ISSN:0043-5147
[Cp] País de publicação:Poland
[La] Idioma:pol
[Ab] Resumo:INTRODUCTION: Pulmonary neuroendocrine cells (PNEC) are present in the normal lungs with the incidence of 1 in 2500 epithelial cells. They usually proliferate in the presence of reactive processes related to inflammation and fibrosis of the lung parenchyma. The division of pulmonary neuroendocrine cell hyperplasia proposed by Travis et al. additionally distinguished diffuse idiopathic pulmonary neuroendocrine cell hyperplasia (DIPNECH) or proliferation that occurs in people without reactive hyperplasia risk factors. The confirmation of the DIPNECH diagnosis requires staining of biopsy specimens using the immunohistochemical technique for neuroendocrine markers. AIM: The aim of this study is to overview the cases of 5 patients in whom the histopathological DIPNECH diagnosis was made in the process of invasive diagnostics performed at the Department of Thoracic Surgery. The aim of the study is to evaluate typical clinical, functional, radiological and histopathological features of this rare disease syndrome. MATERIAL AND METHODS: In the period from April 2010 to June 2014, five patients with lesions in the lungs were subjected to invasive diagnostics. Histopathological and immunohistochemical examinations of the collected specimens were used to make the DIPNECH diagnosis in these patients. The natural history of the disease was traced based on a 5-year follow-up in one of the patients. In addition, we analyzed the literature with regard to the described cases. CONCLUSIONS: Thanks to the early diagnosis of non-specific lesions in the lungs, typical carcinoid which develops on the basis of discussed DIPNECH, was found in the resected material in two out of five operated patients. The accurate diagnosis of DIPNECH allows for the implementation of appropriate treatment and channels further management of the patient into the right direction.
[Mh] Termos MeSH primário: Hiperplasia/diagnóstico por imagem
Hiperplasia/patologia
Pneumopatias/diagnóstico por imagem
Pneumopatias/patologia
Células Neuroendócrinas/patologia
[Mh] Termos MeSH secundário: Idoso
Proliferação Celular
Feminino
Seres Humanos
Imuno-Histoquímica
Masculino
Meia-Idade
Testes de Função Respiratória
Tomografia Computadorizada por Raios X
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171206
[St] Status:MEDLINE



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