Publications by authors named "Lucie Gregoire"

Introduction: Cervical intraepithelial neoplasia (CIN) is increased in women with systemic lupus erythematosus (SLE). Cervical neoplasia is caused by human papilloma virus (HPV) infection which persists and causes malignant transformation of infected cervical cells. Women with lupus have impaired immune systems which can facilitate HPV persistence.

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In comparison with other primate species, humans have an extended juvenile period during which the brain is more plastic. In the current study we sought to examine gene expression in the cerebral cortex during development in the context of this adaptive plasticity. We introduce an approach designed to discriminate genes with variable as opposed to uniform patterns of gene expression and found that greater inter-individual variance is observed among children than among adults.

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Background: Human papillomavirus (HPV) is the major risk factor for cervical cancer.

Methods: We implemented a retrospective case-series study to discern HPV knowledge accuracy among women diagnosed with and treated for cervical cancer. Cases (n=1174), identified from the Pathology database, were diagnosed and treated for cervical cancer at the same institution.

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Recurrent laryngeal papillomatosis (RLP), a chronic disease associated with human papilloma virus (HPV), requires serial surgical procedures for debulking, resulting in debilitating long-term dysphonia, laryngeal scarring, and rarely malignant degeneration. Human papilloma virus 11 tumors have been widely accepted as more aggressive than HPV 6 tumors; however, the clinical course has been difficult to predict at disease onset, and the biologic mediators of proliferation have not been well characterized. A retrospective case review of 43 patients (4 months to 10 years at diagnosis) was performed on children treated for recurrent laryngeal papillomatosis.

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Chronic inflammation and autoimmunity likely contribute to the pathogenesis of abdominal aortic aneurysms (AAAs). The aim of this study was to investigate the role of autoimmunity in the etiology of AAAs using a genetic association study approach with human leukocyte antigen (HLA) polymorphisms (HLA-DQA1, -DQB1, -DRB1 and -DRB3-5 alleles) in 387 AAA cases and 426 controls. We observed an association with the HLA-DQA1 locus among Belgian males, and found a significant difference in the HLA-DQA1*0102 allele frequencies between AAA cases and controls.

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Background: Chronic inflammation and autoimmunity likely contribute to the pathogenesis of abdominal aortic aneurysms (AAAs). The aim of this study was to investigate the role of autoimmunity in the etiology of AAAs using a genetic association study approach with HLA polymorphisms.

Methods: HLA-DQA1, -DQB1, -DRB1 and -DRB3-5 alleles were determined in 387 AAA cases (180 Belgian and 207 Canadian) and 426 controls (269 Belgian and 157 Canadian) by a PCR and single-strand oligonucleotide probe hybridization assay.

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Studies performed to identify early events of ovarian cancer and to establish molecular markers to support of early detection and the development of chemopreventive regimens have been hindered by a lack of adequate cell models. Taking advantage of the spontaneous transformation of mouse ovarian surface epithelial (MOSE) cells in culture, we isolated and characterized distinct transitional stages of ovarian cancer as the cells progressed from a premalignant nontumorigenic phenotype to a highly aggressive malignant phenotype. Transitional stages were concurrent with progressive increases in proliferation, anchorage-independent growth capacity, in vivo tumor formation, and aneuploidy.

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Objectives: The objectives of the study were to detect human papillomavirus (HPV) sequences in nasal inverted papilloma (IP) lesions and to determine whether HPV is involved in the progression of IP to sinonasal squamous cell carcinoma (SCC).

Study Design: A retrospective study was performed on 14 patients diagnosed with IP within the last 12 years. Three of these 14 patients developed SCC.

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Objectives/hypothesis: The main objective was to demonstrate that human papillomavirus (HPV) type 11 is an aggressive virus that plays a significant role in the development of laryngeal cancer in patients with a history of recurrent respiratory papillomatosis (RRP). We have done so by preliminary investigation into the molecular mechanism underlying the malignant transformation of RRP to invasive squamous cell carcinoma.

Study Design: An experimental, nonrandomized, retrospective study using tissue specimens from nine patients with a history of RRP that progressed to laryngeal or bronchogenic cancer was performed.

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Objective: To determine HLA-DQalpha and -DQbeta1 allele associations in juvenile-onset recurrent respiratory papillomatosis (RRP) for risk, disease course, and human papillomavirus type.

Design: A nonrandomized controlled study was performed on DNA extracted from papilloma specimens of children with a history of RRP, and from peripheral blood of African American and white children without RRP. The frequencies of DQalpha and DQbeta1 alleles were compared between patients and ethnically matched controls.

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Female sex workers in low priced brothel areas in Denpasar, Bali, Indonesia participated in an intervention study designed to promote condom use and sexually transmitted disease (STD)/AIDS prevention. The intervention provided educational sessions for sex workers, STD treatment for sex workers, condom distribution, and media for clients. The brothel areas were divided into high and low areas for programme effort.

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Purpose: Claudin proteins represent a large family of integral membrane proteins crucial for tight junction (TJ) formation and function. Claudins have been shown to be up-regulated in various cancers and have been suggested as possible biomarkers and targets for cancer therapy. Because claudin-3 and claudin-4 have been proposed to be expressed in epithelial ovarian cancer, we have performed a detailed analysis of CLDN3 and CLDN4 expression in a panel of ovarian tumors of various subtypes and cell lines.

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