High-risk human papillomavirus (HR-HPV) testing is increasingly important. We therefore examined the impact on accuracy of repeated versus one-time testing, type-specific versus pooled detection, and assay analytic sensitivity. By using a nested case-control design from the ASCUS-LSIL Triage Study, we selected women with incident cervical intraepithelial neoplasia grade 2 or grade 3 (CIN2/3; n ...

A modified, commercially available DNA-DNA in situ hybridization test that uses biotinylated probes for the identification of human papillomavirus (HPV) DNA types 6/11, 16/18, and 31/33/35 was evaluated. HPV DNA was detected in 314 of 787 (40%) histologically abnormal genital biopsy specimens by using the ViraType in situ assay (Life Technologies, Gaithersburg, Md.), in which the hybridization ...

Intermediate filaments are involved in cell migration and intracellular signal transduction pathways. In a variety of organs, the expression of distinct intermediary filaments are further associated with distinct steps of malignant transformation. In this study, we seeked to define the cytokeratin (Ck) expression pattern in oral leukoplakia and oral squamous cell carcinoma (OSCC). One hundred a...

BACKGROUND Many physicians advocate repeat surgery after cervical conization with a diagnosis of cervical cancer stage FIGO IA1. In a multicenter trial, whether repeat surgery is a necessary therapeutic procedure in the treatment of cervical cancer stage FIGO IA1 was evaluated and a literature review performed. PATIENTS AND METHODS From 1997 to 2006, 156 patients with squamous cell cervical c...

BACKGROUND Chronic ulcerative colitis (CUC) is associated with increased risk of developing colon cancer through a dysplasia (intraepithelial neoplasia)-carcinoma sequence. AIMS To investigate the expression of apoptosis and inflammatory related proteins in CUC. METHODS The expression of proteins involved in apoptosis and inflammation (inducible nitric oxide synthase (iNOS), cyclooxygenase ...

Total and early rosettes and rosette inhibition were measured in patients with cervical dysplasia and carcinoma in situ. Both total and early rosettes were significantly depressed in patients with carcinoma in situ; early rosettes were also significantly lower than were controls in women with severe dysplasia. Rosette inhibition titers were increased in most patients with moderate dysplasia and...

The present study aims to investigate the expression levels of two critical mammalian target of rapamycin (mTOR) downstream effectors, 4E binding protein 1 (4EBP1) and eukaryotic initiation factor 4E (eIF4E) proteins, in precancerous squamous intraepithelial lesions and cancer of the uterine cervix, and their association with human papilloma virus (HPV) infection status. Uterine cervical biopsi...

Tumors of the pancreas, the ampulla of Vater, and the extrahepatic and intrahepatic bile ducts have significant histological similarities due to the common embryonic origin of the pancreatobiliary system. This obviates the need for discovery of biomarkers with diagnostic and prognostic value for these tumors. Mucins, especially MUC-1, -2, -4 and -5AC, are important candidates for developing int...

BACKGROUND In organized screening programmes for cervical cancer, pre-cancerous lesions are detected by cervical smears. However, during follow-up after a positive smear these pre-cancerous lesions are not always found. The purpose of the study is to analyse positive diagnostic values of smears of at least mild dysplasia, made under the organized screening programmes in the Rotterdam area (1979...

Background: Invasive cervical cancer develops from a pre-invasive state named cervical intraepithelial neoplasia (CIN). CIN 1 represents mild dysplasia and is now classified as low-grade squamous intraepithelial lesion (LGSIL); CIN 2 and 3 lesions encompass moderate-to-severe dysplasia and are now classified as high-grade squamous intraepithelial lesions (HGSILs) based on the Bethesda cervical ...