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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

Biomolecular feature selection of colorectal cancer microarray data using GA-SVM hybrid and noise perturbation to address overfitting

Mizaku, Alda. January 2009 (has links)
Thesis (M.S.)--State University of New York at Binghamton, Thomas J. Watson School of Engineering and Applied Science, Department of Bioengineering, Biomedical Engineering, 2009. / Includes bibliographical references.
32

Human carboxylesterase 2 splice variants expression, activity, and role in the metabolism of irinotecan and capecitabine /

Schiel, Marissa Ann. January 2009 (has links)
Thesis (Ph.D.)--Indiana University, 2009. / Title from screen (viewed on August 28, 2009). Department of Biochemistry and Molecular Biology, Indiana University-Purdue University Indianapolis (IUPUI). Advisor(s): William Bosron. Includes vita. Includes bibliographical references (leaves 102-111).
33

Estudos da expressão diferencial de genes em câncer coloretal / Differential gene expression studies in colorectal cancer

Pinheiro, Nidia Alice 01 October 2001 (has links)
A tumorigênese do cólon é considerada como um processo complexo que ocorre em múltiplos passos, através de uma série de mutações gênicas capazes de promover a evolução de uma lesão precursora até um adenocarcinoma invasivo e metastático. O desenvolvimento e progressão do câncer e a reversão da tumorigenicidade são acompanhados por complexas mudanças no padrão da expressão gênica. Microarrays de cDNAs fornecem um poderoso instrumento para se estudar esses complexos fenômenos. O propósito deste estudo foi o de determinar a expressão diferencial de genes em tumores coloretais em comparação aos seus tecidos normais. Nós também investigamos a possível variabilidade da expressão gênica entre misturas de tumores coloretais microdissecados. Essas amostras foram analisadas usando o sistema Gene Discovery Array Human System (Incyte Genomics) que consiste de duas membranas de nylon com clones de cDNA fixados em duplicatas, em uma densidade de 36,864 clones por filtros ou 18,376 clones de cDNA individuais. Nossos resultados mostraram vários clones diferencialmente expressos entre os tecidos tumorais e normais analisados. Os resultados obtidos com membranas GDA foram comparados através de um programa de computador na linguagem UNIX aos dados publicados por Alon et al., 1999, que trabalharam com o sistema \"Affymetrix Oligonucleotide Array\" com complementariedade para mais que 6,500 genes humanos. Os resultados encontrados nessas análises foram contrastados com os presentes nas bibliotecas de SAGE, através do instrumento \"Northern Virtual\" presente na página \"Sagenet.org\" . Alguns dos genes diferencialmente expressos encontrados neste estudo foram analisados pela técnica de RT-PCR semiquantitativa em tumores coloretais individuais. / Colon tumorigenesis is considered a complex multistep process that occurs through a series of gene mutations, leading from precursor lesions to invasive and metastatic adenocarcinoma. Toe development and progression of cancer and the reversal of tumorigenicity are accompanied by complex changes in patterns of gene expression. Microarrays of cDNA provide a powerful tool for studying these complex phenomena. The purpose of the present study is to determine differential gene expression in colon tumors as compared with normal tissue. We also investigated the possible variability of the gene expression among pools of micro dissected colon tumors. These samples were analyzed using the Gene Discovery Array Human system (Incyte Genomics) that consists of two nylon membranes in a double spotted pattern at a density of 36,864 per spots per filter or 18,376 individual cDNA clones. Our results showed several differentially expressed clones between normal and tumor tissue analyzed. Our results were compared by software analysis to the patterns was found by Alon et al., 1999 using affymetrix oligonucleotide array complementary to more than 6,500 human genes tumor. We analyzed ours data against SAGE library by \"Northern Virtual\" tools (\"Sagenet.org\" homepage). Some genes founded in these analyses were tested in RT-PCR semi-quantitative analysis.
34

Estudos da expressão diferencial de genes em câncer coloretal / Differential gene expression studies in colorectal cancer

Nidia Alice Pinheiro 01 October 2001 (has links)
A tumorigênese do cólon é considerada como um processo complexo que ocorre em múltiplos passos, através de uma série de mutações gênicas capazes de promover a evolução de uma lesão precursora até um adenocarcinoma invasivo e metastático. O desenvolvimento e progressão do câncer e a reversão da tumorigenicidade são acompanhados por complexas mudanças no padrão da expressão gênica. Microarrays de cDNAs fornecem um poderoso instrumento para se estudar esses complexos fenômenos. O propósito deste estudo foi o de determinar a expressão diferencial de genes em tumores coloretais em comparação aos seus tecidos normais. Nós também investigamos a possível variabilidade da expressão gênica entre misturas de tumores coloretais microdissecados. Essas amostras foram analisadas usando o sistema Gene Discovery Array Human System (Incyte Genomics) que consiste de duas membranas de nylon com clones de cDNA fixados em duplicatas, em uma densidade de 36,864 clones por filtros ou 18,376 clones de cDNA individuais. Nossos resultados mostraram vários clones diferencialmente expressos entre os tecidos tumorais e normais analisados. Os resultados obtidos com membranas GDA foram comparados através de um programa de computador na linguagem UNIX aos dados publicados por Alon et al., 1999, que trabalharam com o sistema \"Affymetrix Oligonucleotide Array\" com complementariedade para mais que 6,500 genes humanos. Os resultados encontrados nessas análises foram contrastados com os presentes nas bibliotecas de SAGE, através do instrumento \"Northern Virtual\" presente na página \"Sagenet.org\" . Alguns dos genes diferencialmente expressos encontrados neste estudo foram analisados pela técnica de RT-PCR semiquantitativa em tumores coloretais individuais. / Colon tumorigenesis is considered a complex multistep process that occurs through a series of gene mutations, leading from precursor lesions to invasive and metastatic adenocarcinoma. Toe development and progression of cancer and the reversal of tumorigenicity are accompanied by complex changes in patterns of gene expression. Microarrays of cDNA provide a powerful tool for studying these complex phenomena. The purpose of the present study is to determine differential gene expression in colon tumors as compared with normal tissue. We also investigated the possible variability of the gene expression among pools of micro dissected colon tumors. These samples were analyzed using the Gene Discovery Array Human system (Incyte Genomics) that consists of two nylon membranes in a double spotted pattern at a density of 36,864 per spots per filter or 18,376 individual cDNA clones. Our results showed several differentially expressed clones between normal and tumor tissue analyzed. Our results were compared by software analysis to the patterns was found by Alon et al., 1999 using affymetrix oligonucleotide array complementary to more than 6,500 human genes tumor. We analyzed ours data against SAGE library by \"Northern Virtual\" tools (\"Sagenet.org\" homepage). Some genes founded in these analyses were tested in RT-PCR semi-quantitative analysis.
35

A systematic review of community-based colorectal cancer screening randomized controlled trials with multi-ethnic groups.

Morrow, Jay Brooks. Dallo, Florence J., Caetano, Raul, January 2009 (has links)
Source: Masters Abstracts International, Volume: 47-06, page: 3551. Advisers: Florence J. Dallo; Raul Caetano. Includes bibliographical references.
36

Development and preliminary validation of the cancer family impact scale for colorectal cancer /

Sinicrope, Pamela S. Vernon, Sally W. January 2007 (has links)
Thesis (Dr. P.H.)--University of Texas Health Science Center at Houston, School of Public Health, 2007. / "May 2007." Includes bibliographical references (leaves 111-120).
37

Consequences of the regulation of DNA damage and other host responses by fish oil for colorectal oncogenesis

Nyskohus, Laura Sophia, Unknown Date (has links)
Thesis (Ph.D.)--Flinders University, School of Medicine, Dept. of Gastroenterology. / Typescript bound. Includes bibliographical references: (leaves 215-233) Also available in an electronic version via the Web.
38

Racial/ethnic disparities in colorectal cancer screening and survival in a large nationwide population-based cohort.

White, Arica L. Vernon, Sally W., Du, Xianglin L., Franzini, Luisa Unknown Date (has links)
Source: Dissertation Abstracts International, Volume: 70-07, Section: B, page: 4061. Advisers: Sally W. Vernon; Xianglin L. Du. Includes bibliographical references.
39

A meta-analysis obesity and colorectal cancer screening.

Zhang, Hong. Hardy, Robert J., Kapadia, Asha Seth, Swint, John Michael, January 2007 (has links)
Source: Masters Abstracts International, Volume: 46-03, page: 1373. Advisers: Robert J. Hardy; Asha S. Kapadia. Includes bibliographical references.
40

Přínosy preventivních programů novotvarů v České republice / Benefits of Preventive Programs of Malignant Cancer in the Czech Republic

Matějková, Karolína January 2017 (has links)
Due to the constantly increasing epidemiological burden of our population on oncological diseases, nationwide preventive programs for selected types of malignant tumors have been introduced within the Czech health system. The aim of this thesis is to analyze and evaluate these screenings, such as mammographic screening, cervical screening and screening of the colon and rectum. The subject of the analysis is the mortality rates for breast cancer (C50), cervix (C53) and colon and rectum cancer (C18-21) between 1994 and 2015. The main focus is on question of whether the development of the mortality rate for selected neoplasms depends on the degree of coverage rate by a preventive program.

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