Search

Your search keyword '"Omar, Siti Zawiah"' showing total 319 results
Start Over Author "Omar, Siti Zawiah"
319 results on '"Omar, Siti Zawiah"'

11. Epigenetic analysis leads to identification of HNF1B as a subtype-specific susceptibility gene for ovarian cancer.

Author

Shen, Hui, Fridley, Brooke L, Song, Honglin, Lawrenson, Kate, Cunningham, Julie M, Ramus, Susan J, Cicek, Mine S, Tyrer, Jonathan, Stram, Douglas, Larson, Melissa C, Köbel, Martin, PRACTICAL Consortium, Ziogas, Argyrios, Zheng, Wei, Yang, Hannah P, Wu, Anna H, Wozniak, Eva L, Woo, Yin Ling, Winterhoff, Boris, Wik, Elisabeth, Whittemore, Alice S, Wentzensen, Nicolas, Weber, Rachel Palmieri, Vitonis, Allison F, Vincent, Daniel, Vierkant, Robert A, Vergote, Ignace, Van Den Berg, David, Van Altena, Anne M, Tworoger, Shelley S, Thompson, Pamela J, Tessier, Daniel C, Terry, Kathryn L, Teo, Soo-Hwang, Templeman, Claire, Stram, Daniel O, Southey, Melissa C, Sieh, Weiva, Siddiqui, Nadeem, Shvetsov, Yurii B, Shu, Xiao-Ou, Shridhar, Viji, Wang-Gohrke, Shan, Severi, Gianluca, Schwaab, Ira, Salvesen, Helga B, Rzepecka, Iwona K, Runnebaum, Ingo B, Rossing, Mary Anne, Rodriguez-Rodriguez, Lorna, Risch, Harvey A, Renner, Stefan P, Poole, Elizabeth M, Pike, Malcolm C, Phelan, Catherine M, Pelttari, Liisa M, Pejovic, Tanja, Paul, James, Orlow, Irene, Omar, Siti Zawiah, Olson, Sara H, Odunsi, Kunle, Nickels, Stefan, Nevanlinna, Heli, Ness, Roberta B, Narod, Steven A, Nakanishi, Toru, Moysich, Kirsten B, Monteiro, Alvaro NA, Moes-Sosnowska, Joanna, Modugno, Francesmary, Menon, Usha, McLaughlin, John R, McGuire, Valerie, Matsuo, Keitaro, Adenan, Noor Azmi Mat, Massuger, Leon FAG, Lurie, Galina, Lundvall, Lene, Lubiński, Jan, Lissowska, Jolanta, Levine, Douglas A, Leminen, Arto, Lee, Alice W, Le, Nhu D, Lambrechts, Sandrina, Lambrechts, Diether, Kupryjanczyk, Jolanta, Krakstad, Camilla, Konecny, Gottfried E, Kjaer, Susanne Krüger, Kiemeney, Lambertus A, Kelemen, Linda E, Keeney, Gary L, Karlan, Beth Y, Karevan, Rod, Kalli, Kimberly R, Kajiyama, Hiroaki, Ji, Bu-Tian, and Jensen, Allan

Subjects
PRACTICAL Consortium, Australian Ovarian Cancer Study Group, Australian Cancer Study, Humans, Ovarian Neoplasms, Genetic Predisposition to Disease, Gene Expression Profiling, DNA Methylation, Epigenesis, Genetic, Polymorphism, Single Nucleotide, Female, Hepatocyte Nuclear Factor 1-beta, Promoter Regions, Genetic, Prevention, Human Genome, Rare Diseases, Genetics, Cancer, Ovarian Cancer, 2.1 Biological and endogenous factors
Abstract

HNF1B is overexpressed in clear cell epithelial ovarian cancer, and we observed epigenetic silencing in serous epithelial ovarian cancer, leading us to hypothesize that variation in this gene differentially associates with epithelial ovarian cancer risk according to histological subtype. Here we comprehensively map variation in HNF1B with respect to epithelial ovarian cancer risk and analyse DNA methylation and expression profiles across histological subtypes. Different single-nucleotide polymorphisms associate with invasive serous (rs7405776 odds ratio (OR)=1.13, P=3.1 × 10(-10)) and clear cell (rs11651755 OR=0.77, P=1.6 × 10(-8)) epithelial ovarian cancer. Risk alleles for the serous subtype associate with higher HNF1B-promoter methylation in these tumours. Unmethylated, expressed HNF1B, primarily present in clear cell tumours, coincides with a CpG island methylator phenotype affecting numerous other promoters throughout the genome. Different variants in HNF1B associate with risk of serous and clear cell epithelial ovarian cancer; DNA methylation and expression patterns are also notably distinct between these subtypes. These findings underscore distinct mechanisms driving different epithelial ovarian cancer histological subtypes.

Published
2013

25. Analysis of serum circulating MicroRNAs level in Malaysian patients with gestational diabetes mellitus.

Author

Jamalpour, Sajad, Zain, Shamsul Mohd, Vazifehmand, Reza, Mohamed, Zahurin, Pung, Yuh Fen, Kamyab, Hesam, and Omar, Siti Zawiah

Abstract

Gestational diabetes mellitus (GDM) is a severe global issue that requires immediate attention. MicroRNA expression abnormalities are possibly disease-specific and may contribute to GDM pathological processes. To date, there is limited data on miRNA profiling in GDM, especially that involves a longitudinal study. Here, we performed miRNA expression profiling in the entire duration of pregnancy (during pregnancy until parturition and postpartum) using a miRNA- polymerase chain reaction array (miRNA-PCRArray) and in-silico analysis to identify unique miRNAs expression and their anticipated target genes in Malay maternal serum. MiRNA expression levels and their unique potential as biomarkers were explored in this work. In GDM patients, the expression levels of hsa-miR-193a, hsa-miR-21, hsa-miR-23a, and hsa-miR-361 were significantly increased, but miR-130a was significantly downregulated. The area under the curve (AUC) and receiver operating characteristic (ROC) curve study demonstrated that hsa-miR-193a (AUC = 0.89060 ± 04,470, P = 0.0001), hsa-miR-21 (AUC = 0.89500 ± 04,411, P = 0.0001), and miR-130a (AUC = 0.6939 ± 0.05845, P = 0.0025) had potential biomarker features in GDM. In-silico analysis also revealed that KLF (Kruppel-Like family of transcription factor), ZNF25 (Zinc finger protein 25), AFF4 (ALF transcription elongation factor 4), C1orf143 (long intergenic non-protein coding RNA 2869), SRSF2 (serine and arginine rich splicing factor 2), and ZNF655 (Zinc finger protein 655) were prominent genes targeted by the common nodes of miR23a, miR130, miR193a, miR21, and miR361.Our findings suggest that circulating microRNAs in the first trimester has the potential for GDM screening in the Malay population. [ABSTRACT FROM AUTHOR]

Published
2022
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results