background: the incidence of colorectal cancer is rising in several developing countries. in the absence of integrated endoscopy and pathology databases, adenoma detection rate (adr), as a validated quality indicator of screening colonoscopy, is generally difficult to obtain in practice. we aimed to measure the correlation of polyp-related indicators with adr in order to identify the most accur...

The distribution of an antigen recognized by murine monoclonal antibody 1D3 (Bhattacharya, M., Chatterjee, S.K., Barlow, J. J., and Fuji, H. Cancer Res., 42: 1650-1654, 1982) was investigated in various types of human malignant and normal adult tissues by indirect immunoperoxidase assay in fixed paraffin-embedded sections. One hundred percent of ovarian mucinous cystadenocarcinomas expressed hi...

A series of glycolipid antigens with Ley determinant (Fuc alpha 1----2Gal beta 1----4(Fuc alpha 1----3)GlcNAc) defined by monoclonal antibody AH6 (Abe, K., McKibbin, J. M., and Hakomori, S. (1983). J. Biol. Chem. 258, 11793-11797) have been detected in human colonic carcinoma cases. Three Ley-active components have been identified as follows. The simplest compound was characterized as Ley hexao...

Codina, Juan, Jian Li, and Thomas D. DuBose, Jr. CD63 interacts with the carboxy terminus of the colonic H -K -ATPase to increase plasma membrane localization and Rb uptake. Am J Physiol Cell Physiol 288: C1279–C1286, 2005. First published January 12, 2005; doi:10.1152/ajpcell.00463.2004.—The carboxy terminus (CT) of the colonic H -K -ATPase is required for stable assembly with the -subunit, tr...

The purpose of the present study was to investigate the effects of inflammation, induced by intratracheal instillation (i.t.) of quartz as an environmental factor in the lung or drinking of dextran sulfate sodium (DSS) as an environmental factor in the colon on lung tumors in female A/J mice initiated with NNK. For comparison, colonic preneoplastic lesions, aberrant crypt foci (ACF), were also ...

Management of chronic constipation with refractory symptoms can be challenging. Although new drugs and behavioral treat-ments have improved outcome, when they fail, there is little guidance on what to do next. At this juncture, typically most doc-tors may refer for surgical intervention although total colectomy is associated with morbidity including complications such as recurrent bacterial ove...

Goldfarb, David S., William S. Sly, Abdul Waheed, and Alan N. Charney. Acid-base effects on electrolyte transport in CA II-deficient mouse colon. Am. J. Physiol. Gastrointest. Liver Physiol. 278: G409–G415, 2000.—To determine the role of carbonic anhydrase (CA) in colonic electrolyte transport, we studied Car-20 mice, mutants deficient in cytosolic CA II. Ion fluxes were measured under short-ci...

Colonic pseudo-obstruction is a condition of distention of colon with signs and symptoms of colonic obstruction in the absence of an actual mechanical cause of obstruction. It is a poorly understood disease that is characterized by functional large bowel obstruction. Intestinal pseudo-obstruction was described in 1938 by the German surgeon W. Weiss who reported mega-duodenum in 6 persons in 3 g...

Protein kinase C (PKC) has been implicated in colon carcinogenesis in humans and in rodent models. However, little is known about the specific role of individual PKC isozymes in this process. We recently demonstrated that elevated expression of PKC betaII in the colonic epithelium induces hyperproliferation in vivo (N. R. Murray et al., J. Cell Biol., 145: 699-711, 1999). Because hyperprolifera...

Studies suggest that micronutrients such as the tocopherols, retinol, and the carotenoids have a chemopreventive action against colonic carcinogenesis and that they may be essential for the functioning and structural integrity of the gastrointestinal epithelium. In this study, we have determined the concentrations of tocopherols, retinol, and the carotenoids in human colonic epithelial cells us...