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| Registros recuperados: 20 | |
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| Souza,D.R.S.; Nakazone,M.A.; Pinhel,M.A.S.; Alvares,R.M.; Monaco,A.C.; Pinheiro,A.; Barros,C.F.D.C.; Cury,P.M.; Cunrath,G.S.; Netinho,J.G.. |
| We evaluated genetic variants of apolipoprotein E (APOE HhaI) and their association with serum lipids in colorectal cancer (CRC), together with eating habits and personal history. Eight-seven adults with CRC and 73 controls were studied. APOE*2 (rs7412) and APOE*4 (rs429358) were identified by polymerase chain reaction-restriction fragment length polymorphism. APOE gene polymorphisms were similar in both groups, but the ε4/ε4 genotype (6%) was present only in controls. The patients had reduced levels (mean ± SD) of total cholesterol and low-density lipoprotein cholesterol fraction (180.4 ± 49.5 and 116.1 ± 43.1 mg/dL, respectively) compared to controls (204.2 ± 55.6, P = 0.135 and 134.7 ± 50.8 mg/dL; P = 0.330, respectively) indicating that they were not... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apolipoprotein E; Colorectal cancer; Lipid profile; Polymorphisms. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000500001 |
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| Wang,Q.; Shi,C.-J.; Lv,S.-H.. |
| Different pathways act synergistically to participate in many biological processes. Thus, the purpose of our study was to extract dysregulated pathways to investigate the pathogenesis of colorectal cancer (CRC) based on the functional dependency among pathways. Protein-protein interaction (PPI) information and pathway data were retrieved from STRING and Reactome databases, respectively. After genes were aligned to the pathways, each pathway activity was calculated using the principal component analysis (PCA) method, and the seed pathway was discovered. Subsequently, we constructed the pathway interaction network (PIN), where each node represented a biological pathway based on gene expression profile, PPI data, as well as pathways. Dysregulated pathways... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pathway interaction network; Colorectal cancer; Dysregulated pathways; Principal component analysis; Protein-protein interaction. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000500602 |
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| Almeida,Fabiana Greyce Oliveira; Aquino,Priscila Ferreira de; Souza,Afonso Duarte Leäo de; Souza,Antonia Queiroz Lima de; Vinhote,Sonia do Carmo; Mac-Cormick,Thais Messias; Silva,Marcelo Soares da Mota; Chalub,Sidney Raimundo Silva; Fischer,Juliana de Saldanha da Gama; Carvalho,Paulo Costa; Carvalho,Maria da Gloria da Costa. |
| BACKGROUND: DNA methylation is commonly linked with the silencing of the gene expression for many tumor suppressor genes. As such, determining DNA methylation patterns should aid, in times to come, in the diagnosis and personal treatment for various types of cancers. Here, we analyzed the methylation pattern from five colorectal cancer patients from the Amazon state in Brazil for four tumor suppressor genes, viz.: DAPK, CDH1, CDKN2A, and TIMP2 by employing a polymerase chain reaction (PCR) specific to methylation. Efforts in the study of colorectal cancer are fundamental as it is the third most of highest incidence in the world. RESULTS: Tumor biopsies were methylated in 1/5 (20 %), 2/5 (40 %), 4/5 (80 %), and 4/5 (80 %) for CDH1, CDKN2A, DAPK, and TIMP2... |
| Tipo: Journal article |
Palavras-chave: Methylation; Colorectal cancer; Amazon; Epigenetic. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602015000100050 |
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| Xu,Li; Peng,Hui; Huang,Xiao-Xu; Xia,Ya-Bin; Hu,Kai-Feng; Zhang,Zheng-Ming. |
| Previous studies suggested that chromodomain helicase DNA-binding proteins (CHDs), including CHD 1–8, were associated with several human diseases and cancers including lymphoma, liver cancer, colorectal cancer, stomach cancer, etc. To date, little research on CHD 9 in human cancers has been reported. In this study, we assessed the prognostic value of CHD 9 in patients with colorectal cancer (CRC). We screened for CHD 9 expression using immunohistochemical analysis in 87 surgical CRC specimens and found that the expression was upregulated in 81.5% of the cases, while 7.4% were decreased; in the remaining 11.1% of the cases, levels were not altered. Kaplan-Meier analysis showed that patients with high CHD 9 expression had better prognosis than those with low... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chromodomain helicase DNA-binding protein 9; Colorectal cancer; Immunohistochemical analysis; Biomarker; Prognosis. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000900612 |
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| Wodziński,Damian; Wosiak,Agnieszka; Pietrzak,Jacek; Świechowski,Rafał; Jeleń,Agnieszka; Balcerczak,Ewa. |
| Abstract Colorectal cancer has become a serious problem, especially in highly developed countries. As reported by the World Health Organization, the number of colon cancer cases in the world in 2012 amounted to 1.36 million. It is the second most common cancer in females (614,000 cases, 9.2% of the total) and the third in males (746,000 cases, 10.0% of the total) worldwide. It is believed that TGFβ pathway elements are involved in the pathogenesis of colorectal cancer. This study assessed one of these elements, the ACVR2A gene. Qualitative and quantitative analyses of the ACVR2A gene in 84 patients with colorectal cancer was performed. There was no statistically significant association between ACVR2A gene expression and age, gender, histological type,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Activin A protein; ACVR2A gene expression; Tumor suppressor; Colorectal cancer; TGFß signaling pathway. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000100032 |
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| Fukugaiti,Márcia H.; Ignacio,Aline; Fernandes,Miriam R.; Ribeiro Júnior,Ulysses; Nakano,Viviane; Avila-Campos,Mario J.. |
| Abstract Colorectal carcinoma is considered the fourth leading cause of cancer deaths worldwide. Several microorganisms have been associated with carcinogenesis, including Enterococcus spp., Helicobacter pylori, enterotoxigenic Bacteroides fragilis, pathogenic E. coli strains and oral Fusobacterium. Here we qualitatively and quantitatively evaluated the presence of oral and intestinal microorganisms in the fecal microbiota of colorectal cancer patients and healthy controls. Seventeen patients (between 49 and 70 years-old) visiting the Cancer Institute of the Sao Paulo State were selected, 7 of whom were diagnosed with colorectal carcinoma. Bacterial detection was performed by qRT-PCR. Although all of the tested bacteria were detected in the majority of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oral and intestinal bacteria; Colorectal cancer; Intestinal microbiota. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000401135 |
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| Wang,J.Z.; Xu,C.L.; Wu,H.; Shen,S.J.. |
| Several long non-coding RNA (lncRNA) might be correlated with the prognosis of colorectal cancer (CRC) and serve as a diagnostic and prognostic biomarker. However, the exact expression pattern of small nucleolar RNA host gene 12 (SNHG12) in colorectal cancer and its clinical significance remains unclear. The level of SNHG12 was detected by qRT-PCR in CRC tissues and CRC cells. MTT assay and colony formation assay were performed to examine the cell proliferation of CRC cells transfected with pcDNA-SNHG12 or si-SNHG12. Flow cytometry technology was used to detect cell cycle and cell apoptosis of CRC cells transfected with pcDNA-SNHG12 or si-SNHG12. The protein level of cell cycle progression-related molecules, including cyclin-dependent kinases (CDK4, CDK6),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: SNHG12; Cell growth; Biomarker; Cell apoptosis; Colorectal cancer. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000300604 |
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| Mao,Q.D.; Zhang,W.; Zhao,K.; Cao,B.; Yuan,H.; Wei,L.Z.; Song,M.Q.; Liu,X.S.. |
| Colorectal cancer (CRC) is the fourth leading cause of cancer-induced mortality. Histone deacetylase 2 (HDAC2) is involved in prognosis and therapy of CRC. This study aimed to explore novel therapeutic targets for CRC. The alteration of HDAC2 expression in CRC tissues was estimated by qRT-PCR. After lentivirus transfection, HDAC2 knockdown was confirmed by western blot analysis. The effect of HDAC2 knockdown on cell proliferation was then assessed by 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay. Screened by TargetScan, microRNA (miR)-455 was predicted to bind to 3′UTR of HDAC2 and the prediction was verified by luciferase assay. Finally, cells were transfected, respectively, with miR-455 mimics or miR-455 negative control... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Colorectal cancer; Histone deacetylase 2; MiR-455; Proliferation; Apoptosis. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000600608 |
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| Carter,Kevin; Kotlyarov,Eduard. |
| Approximately 150,000 new cases of colorectal cancer are diagnosed each year with the life time risk of developing colon caner in developed nations being 4.6% in men and 3.2% in women. Screening patients is essential early detection of colon carcinoma to aid in complete resection. Unfortunately current screening methods carry with them poor patient compliance. PET and PET/CT may be a significant part of this screening solution. The authors reviewed and analyzed the English language articles and case reports identified on Medline during the last 10 years. PET and PET/CT results for colorectal carcinoma were tabulated and presented for the fifth Scientific Meeting of the Brazilian Society of Nuclear Biosciences. Though most studies have been retrospective... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: PET and PET/CT; Colorectal cancer; Diagnostic. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000700025 |
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| Mahasneh,Amjad; Jubaili,Amal; El Bateiha,Ahmed; Al-Ghazo,Mohammad; Matalka,Ismail; Malkawi,Mousa. |
| The arylamine N-acetyltransferase 2 (NAT2) enzymes detoxify a wide range of naturally occurring xenobiotics including carcinogens and drugs. Point mutations in the NAT2 gene result in the variant alleles M1 (NAT2 *5A), M2 (NAT2*6A), M3 (NAT2*7) and M4 (NAT2 *14A) from the wild-type WT (NAT2 *4) allele. The current study was aimed at screening genetic polymorphisms of NAT2 gene in 49 lung cancer patients, 54 colorectal cancer patients and 99 cancer-free controls, using PCR-RFLP. There were significant differences in allele frequencies between lung cancer patients and controls in the WT, M2 and M3 alleles (p < 0.05). However, only M2 and M3 allele frequencies were different between colorectal cancer patients and controls (p < 0.05). There was a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: NAT2; Lung cancer; Colorectal cancer; Polymorphisms. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000500003 |
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| Wu,Wen-Chih; Hsu,Chih-Hsiung; Kuan,Jen-Chun; Hsieh,Jih-Fu; Sun,Chien-An; Yang,Tsan; Wu,Chang-Chieh; Chou,Yu-Ching. |
| A new noninvasive screening tool for colorectal neoplasia detects epigenetic alterations exhibited by gastrointestinal tumor cells shed into stool. There is insufficient existing data to determine temporal associations between colorectal cancer (CRC) progression and aberrant DNA methylation. To evaluate the feasibility of using fecal DNA methylation status to determine CRC progression, we collected stool samples from 14 male SD rats aged six weeks, and administered subcutaneous injections of either 1,2-dimethylhydrazine or saline weekly. p16 DNA methylation statuses in tumorous and normal colon tissue, and from stool samples were determined using methylation-specific PCR. Additionally, p16 methylation was detected in stool DNA from 85.7% of the CRC rats.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Colorectal cancer; DNA methylation; Stool test for colorectal cancer. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000300004 |
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| Wang,Y.; Liu,Y.F.; Cheng,Y.; Yi,D.H.; Li,P.; Song,W.Q.; Fu,D.Z.; Wang,X.. |
| The objective of the present study was to explore the factors related to the prognosis of colorectal cancer (CRC) and to establish a prognostic model for the selection of patients who might benefit from hepatic resection for metastatic CRC. A total of 293 patients undergoing liver resection for metastatic CRC (172 males and 80 females ranging in age from 26 to 80 years) were selected and clinical, pathological and outcome data were examined in this retrospective study. The prognostic index (PI) of the patients was calculated on the basis of results of multivariate analysis. Patients were stratified into different groups, with survival curves projected according to PI. The 1-, 3-, and 5-year overall survival rates were 58.3, 26.4, and 11.3%, respectively.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Colorectal cancer; Liver metastasis; Prognosis. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010001100015 |
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| Lino-Silva,Leonardo Saúl. |
| The micropapillary carcinoma is regarded as an aggressive variant of adenocarcinoma in any location. Histologically is characterized by papillary cell clusters surrounded by clear spaces. The reported proportion of micropapillary carcinoma component to the entire tumor ranged from 5 to 80% and no pure cases has been reported. There are near of 130 cases reported to date in colorectum. We experienced a patient with a pure micropapillary carcinoma showing coexpression of CK7, CK20, and absence of CDX2, which had an aggressive neoplasm with extense perineural, vascular and lymphatic invasion also extensive nodal metastasis. The presence of a micropapillary carcinoma in the colorectum seemed to be closely related with nodal metastasis, similar to the case for... |
| Tipo: Journal article |
Palavras-chave: Micropapillary carcinoma; Adenocarcinoma; CK7; CK20; CDX2; Colorectal cancer. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100004 |
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| Murtaza,B.N.; Bibi,A.; Rashid,M.U.; Khan,Y.I.; Chaudri,M.S.; Shakoori,A.R.. |
| The incidence of colorectal cancer (CRC) is increasing daily worldwide. Although different aspects of CRC have been studied in other parts of the world, relatively little or almost no information is available in Pakistan about different aspects of this disease at the molecular level. The present study was aimed at determining the frequency and prevalence of K ras gene mutations in Pakistani CRC patients. Tissue and blood samples of 150 CRC patients (64% male and 36% female) were used for PCR amplification of K ras and detection of mutations by denaturing gradient gel electrophoresis, restriction fragment length polymorphism analysis, and nucleotide sequencing. The K ras mutation frequency was found to be 13%, and the most prevalent mutations were found at... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Colorectal cancer; Kirsten rat sarcoma viral oncogene homologue; Mutation analysis; Risk factors for CRC; Cetuximab therapy. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000100035 |
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| Shen,Xiaogang; Bai,Yifeng; Luo,Bin; Zhou,Xiaogang. |
| Abstract Background Growing evidence has supported that long non-coding RNAs (lncRNAs) could play vital roles in the development, progression, and prognosis of colorectal cancer (CRC). However, little is known about the clinical significance of BRAF-activated non-coding RNA (BANCR) in CRC. The aim of this study is to explore the clinical value of lncRNA BANCR in CRC patients. Methods The expression of lncRNA BANCR was measured in 106 CRC tissues and 65 adjacent normal tissues using the quantitative real-time PCR. Results The study showed that lncRNA BANCR was highly expressed in CRC tissues compared with adjacent normal tissues (P < 0.001). In addition, high expression of lncRNA BANCR was positively correlated with the lymph node metastasis (P... |
| Tipo: Journal article |
Palavras-chave: LncRNA; BANCR; Colorectal cancer; Lymph node metastasis; Prognosis. |
| Ano: 2017 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602017000100223 |
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| Registros recuperados: 20 | |
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