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OBJECTIVE We aimed to determine the effects of dietary aspirin treatment on ovarian cancer incidence and progression in the hen as a model for the human disease. METHODS Hens were fed a standard layer diet (control) or the same diet containing 0.1% aspirin for 1 year. Liver prostaglandin E(2) (PGE(2)) was measured using an enzyme immunoassay. Incidence(More)
Ovarian cancer has a high mortality rate due, in part, to the lack of early detection and incomplete understanding of the origin of the disease. The hen is the only spontaneous model of ovarian cancer and can therefore aid in the identification and testing of early detection strategies and therapeutics. Our aim was to combine the use of the hen animal model(More)
OBJECTIVES We aimed to determine the expression of vascular endothelial growth factor (VEGF) and the effect of nonsteroidal anti-inflammatory drugs (NSAIDs) on the proliferation of cells isolated from ascites in the hen model of ovarian cancer. METHODS Ovarian tumor and normal ovary were collected from hens and ascites cells were isolated from hens with(More)
BACKGROUND Cytokines may be elevated in tumor and normal tissues following irradiation. Cytokine expression in these tissues may predict for toxicity or tumor control. The purpose of this pilot study was to determine the feasibility of measuring local salivary cytokine levels using buccal sponges in patients receiving chemo-radiation for head and neck(More)
Phosphoinositide 3-kinase (PI3K) is an important therapeutic target. Mutations in PIK3CA, which encodes p110α, the catalytic subunit of PI3K, occur in endometrioid endometrial cancers (EEC) and nonendometrioid endometrial cancers (NEEC). The goal of this study was to determine whether PIK3R1, which encodes p85α, the inhibitory subunit of PI3K, is mutated in(More)
Endometrial cancer is the sixth most commonly diagnosed cancer in women worldwide, causing ~74,000 deaths annually. Serous endometrial cancers are a clinically aggressive subtype with a poorly defined genetic etiology. We used whole-exome sequencing to comprehensively search for somatic mutations within ~22,000 protein-encoding genes in 13 primary serous(More)
OBJECTIVE Our purpose was to determine the mRNA and protein expression of cyclooxygenase 1 (COX-1) and cyclooxygenase 2 (COX-2) in ovarian tumors and normal ovaries of the hen, which is an excellent model for human ovarian cancer. Tissue concentrations of prostaglandin E(2) (PGE2) and PGE2 metabolites were also determined. METHODS Tissue was obtained from(More)
OBJECTIVE The main goal of this study was to compare the incidence of ovarian cancer (OC) in 2 genetically different lines of hens--one that generally fails to lay eggs (the mutant "restricted ovulator" [RO] strain) and the other consisting of the wild-type (WT) siblings of the mutant RO hens. METHODS Individual egg production data were obtained over a(More)
PURPOSE Gastrointestinal cancers frequently exhibit mutational activation of the Ras/MAPK pathway, which is implicated in resistance to ionizing radiation (IR) and chemotherapy. Concurrent radiotherapy and 5-fluorouracil (5-FU) based chemotherapy is commonly used for treatment of gastrointestinal malignancies. We previously reported radiosensitization with(More)
Anti-mullerian hormone (AMH) has a critical role in regression of the mullerian duct system during development in male mammalian and avian species and in regression of the right oviduct in female avian species. AMH in adult female birds has not been investigated. Chicken-specific cDNA primers were used to isolate Amh by RT-PCR. This probe was used in(More)