Blar i forfatter "Siddiq, Afshan"

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    • Adiposity, hormone replacement therapy use and breast cancer risk by age and hormone receptor status: a large prospective cohort study 

      Ritte, Rebecca; Lukanova, Annekatrin; Berrino, Franco; Dossus, Laure; Tjønneland, Anne; Olsen, Anja; Overvad, Thure F.; Overvad, Kim; Clavel-Chapelon, Françoise; Fournier, Agnes; Fagherazzi, Guy; Rohrmann, Sabine; Teucher, Birgit; Boeing, Heiner; Aleksandrova, Krasimira; Trichopoulou, Antonia; Lagiou, Pagona; Trichopoulos, Dimitrios; Palli, Domenico; Sieri, Sabina; Panico, Salvatore; Tumino, Rosario; Vineis, Paolo; Quiros, Jose R; Buckland, Genevieve; Sanchez, Maria-José; Amiano, Pilar; Chirlaque, María Dolores; Ardanaz, Eva; Sund, Malin; Lenner, Per; Bueno-de-Mesquita, Bas; van Gils, Carla H.; Peeters, Petra H.M.; Krum-Hansen, Sanda; Gram, Inger Torhild; Lund, Eiliv; Khaw, Kay-Tee; Wareham, Nick; Allen, Naomi E.; Key, Timothy J.; Romieu, Isabelle; Rinaldi, Sabina; Siddiq, Afshan; Cox, David; Riboli, Elio; Kaaks, Rudolf (Journal article; Tidsskriftartikkel; Peer reviewed, 2012-05-14)
      Introduction: Associations of hormone-receptor positive breast cancer with excess adiposity are reasonably well characterized; however, uncertainty remains regarding the association of body mass index (BMI) with hormonereceptor negative malignancies, and possible interactions by hormone replacement therapy (HRT) use. Methods: Within the European EPIC cohort, Cox proportional hazards models were used ...

    • Association of Selenoprotein and Selenium Pathway Genotypes with Risk of Colorectal Cancer and Interaction with Selenium Status 

      Fedirko, Veronika; Jenab, Mazda; Méplan, Catherine; Jones, Jeb S.; Zhu, Wanzhe; Schomburg, Lutz; Siddiq, Afshan; Hybsier, Sandra; Overvad, Kim; Tjønneland, Anne; Omichessan, Hanane; Perduca, Vittorio; Boutron-Ruault, Marie-Christine; Kühn, Tilman; Katzke, Verena; Aleksandrova, Krasimira; Trichopoulou, Antonia; Karakatsani, Anna; Kotanidou, Anastasia; Tumino, Rosario; Panico, Salvatore; Masala, Giovanna; Agnoli, Claudia; Naccarati, Alessio; Bueno-De-Mesquita, Bas; Vermeulen, Roel C.H.; Weiderpass, Elisabete; Skeie, Guri; Nøst, Therese Haugdahl; Lujan-Barroso, Leila; Quirós, Jose Ramón; Huerta, José María; Rodríguez-Barranco, Miguel; Barricarte, Aurelio; Gylling, Björn; Harlid, Sophia; Bradbury, Kathryn Erica; Wareham, Nick; Khaw, Kay-Tee; Gunter, Marc J.; Murphy, Neil; Freisling, Heinz; Tsilidis, Kostas; Aune, Dagfinn; Riboli, Elio; Hesketh, John E.; Hughes, David J. (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-04-25)
      Selenoprotein genetic variations and suboptimal selenium (Se) levels may contribute to the risk of colorectal cancer (CRC) development. We examined the association between CRC risk and genotype for single nucleotide polymorphisms (SNPs) in selenoprotein and Se metabolic pathway genes. <i>Illumina Goldengate</i> assays were designed and resulted in the genotyping of 1040 variants in 154 genes ...

    • Genetic risk variants associated with in situ breast cancer 

      Campa, Daniele; Barrdahl, Myrto; Gaudet, Mia M.; Black, Amanda; Chanock, Stephen J.; Diver, W. Stephen; Gapstur, Susan M.; Haiman, Christopher; Hankinson, Susan; Hazra, Aditi; Henderson, Brian; Hoover, Robert N.; Hunter, David J.; Joshi, Amit; Kraft, Peter; Le Marchand, Loic; Lindström, Sara; Willett, Walter; Travis, Ruth C.; Amiano, Pilar; Siddiq, Afshan; Trichopoulos, Dimitrios; Sund, Malin; Tjønneland, Anne; Weiderpass, Elisabete; Peeters, Petra H.; Panico, Salvatore; Dossus, Laure; Ziegler, Regina G.; Canzian, Federico; Kaaks, Rudolf (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-06-13)
      Introduction: Breast cancer in situ (BCIS) diagnoses, a precursor lesion for invasive breast cancer, comprise about 20 % of all breast cancers (BC) in countries with screening programs. Family history of BC is considered one of the strongest risk factors for BCIS.<p><p>Methods: To evaluate the association of BC susceptibility loci with BCIS risk, we genotyped 39 single nucleotide polymorphisms (SNPs), ...

    • Sources of pre-analytical variations in yield of DNA extracted from blood samples: analysis of 50,000 DNA samples in EPIC 

      Caboux, Elodie; Lallemand, Christophe; Ferro, Gilles; Hemon, Bertrand; Mendy, Maimuna; Biessy, Carine; Sims, Matt; Wareham, Nicholas; Britten, Abigail; Boland, Anne; Hutchinson, Amy; Siddiq, Afshan; Vineis, Paolo; Riboli, Elio; Romieu, Isabelle; Rinaldi, Sabina; Gunter, Mark J.; Peeters, Petra H.M.; van der Schouw, Yvonne T.; Travis, Ruth C.; Bueno-De-Mesquita, H. Bas; Canzian, Federico; Sanchez, Maria-José; Skeie, Guri; Olsen, Karina Standahl; Lund, Eiliv; Bilbao, Roberto; Sala, Núria; Barricarte, Aurelio; Palli, Domenico; Navarro, Carmen; Panico, Salvatore; Redondo, Maria Luisa; Polidoro, Silvia; Dossus, Laure; Boutron-Ruault, Marie-Christine; Clavel-Chapelon, Françoise; Trichopoulou, Antonia; Trichopoulos, Dimitrios; Lagiou, Pagona; Boeing, Heiner; Fisher, Eva; Tumino, Rosario; Agnoli, Claudia; Hainaut, Pierre (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      The European Prospective Investigation into Cancer and nutrition (EPIC) is a long-term, multi-centric prospective study in Europe investigating the relationships between cancer and nutrition. This study has served as a basis for a number of Genome-Wide Association Studies (GWAS) and other types of genetic analyses. Over a period of 5 years, 52,256 EPIC DNA samples have been extracted using an automated ...

    • Vitamin D-related genes, blood vitamin D levels and colorectal cancer risk in Western European populations 

      Fedirko, Veronika; Mandle, Hannah B.; Zhu, Wanzhe; Hughes, David J.; Siddiq, Afshan; Ferrari, Pietro; Romieu, Isabelle; Riboli, Elio; Bueno-de-Mesquita, Hendrik Bastiaan; van Duijnhoven, Fränzel J.B.; Siersema, Peter D.; Tjønneland, Anne; Olsen, Anja; Perduca, Vittorio; Carbonnel, Franck; Boutron-Ruault, Marie-Christine; Kühn, Tilman; Johnson, Theron; Krasimira, Aleksandrova; Trichopoulou, Antonia; Makrythanasis, Periklis; Thanos, Dimitris; Panico, Salvatore; Krogh, Vittorio; Sacerdote, Carlotta; Skeie, Guri; Weiderpass, Elisabete; Colorado-Yohar, Sandra; Sala, Núria; Barricarte, Aurelio; Sánchez, María-José; Quirós, Ramón; Amiano, Pilar; Gylling, Björn; Harlid, Sophia; Perez-Cornago, Aurora; Heath, Alicia K.; Tsilidis, Konstantinos K.; Aune, Dagfinn; Freisling, Heinz; Murphy, Neil; Gunter, Marc J.; Jenab, Mazda (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-08-20)
      Higher circulating 25-hydroxyvitamin D levels (25(OH)D) have been found to be associated with lower risk for colorectal cancer (CRC) in prospective studies. Whether this association is modified by genetic variation in genes related to vitamin D metabolism and action has not been well studied in humans. We investigated 1307 functional and tagging single-nucleotide polymorphisms (SNPs; individually, ...