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Oldal 1 tól től 21 eredmények
Secretory glycoconjugates of a mucin-synthesizing human colonic adenocarcinoma cell line. Analysis using double labeling with lectins.
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Belépés Regisztrálás
Lectins were used to characterize mucin glycoproteins and other secretory glycoconjugates synthesized by a human colon adenocarcinoma-derived cell line which expresses a goblet cell phenotype. Despite being clonally derived, HT29-18N2 (N2) cells, like normal goblet cells in situ were heterogeneous
Reaction of various lectins to mucin derived from the different layers of rat gastric mucosa: comparison of enzyme-linked lectin binding assay with lectin histochemistry.
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Belépés Regisztrálás
The purpose of this study was to demonstrate that the histochemical staining reactivities of lectins in rat stomach actually represent the gastric mucins, and to estimate the utility of the lectins for mucin histochemistry. In this paper, the lectin histochemistry was compared with an enzyme-linked
High-Mr glycoprotein profiles in human milk serum and fat-globule membrane.
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Gradient-polyacrylamide-gel electrophoresis of human milk serum separated three high-Mr glycoprotein bands. The properties of the components corresponding to the three bands (tentatively termed 'Components C, B and A' in their order of migration) were compared by staining with four monoclonal
Histochemical study on the bile duct system of normal Mongolian gerbils.
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The bile duct system of normal Mongolian gerbils was examined histochemically. The luminal surface membrane and apical cytoplasm of the biliary and gallbladder epithelial cells were stained with periodic acid-Schiff (PAS), alcian blue, pH 2.5 (AB) and high iron diamine (HID)-AB, and many epithelial
Histochemical study on the bile duct system of normal rats.
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The bile duct system of normal rats was examined histochemically. Although the apical surface of biliary and glandular epithelial cells was positively stained with Concanavalia ensiformis (Con A), Dolichos biflorus (DBA), Glycine max (SBA), Ulex europeus-I (UEA-I) and Triticumvulgaris (WGA), the
Changes in lectin-binding patterns during late fetal development of the rat colon.
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Lectin-binding and histochemical studies were integrated with a morphological description of colon development in rat fetuses to determine whether changes in glycoprotein sugars could be identified with stages of colon organogenesis. At 16 days gestation the colon consisted of a minute lumen
Lectin-binding sites in neoplastic and non-neoplastic colonic mucosa of 1,2-dimethylhydrazine-treated rats.
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Qualitative changes of glycoconjugates in luminal surface and goblet cell mucin from colon mucosa of 1,2-dimethylhydrazine (DMH)-treated rats were studied. Eight fluoresceinated lectins were used: Dolichos biflorus (DBA), Glycine max (SBA), Triticum vulgare (WGA), Limax flavus (LFA), Arachis
Carbohydrate-binding specificities of five lectins that bind to O-Glycosyl-linked carbohydrate chains. Quantitative analysis by frontal-affinity chromatography.
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The carbohydrate-binding specificities of lectins purified from Agaricus bisporus (ABA-I), Arachis hypogaea (PNA), Bauhinia purpurea (BPA), Glycine max (SBA), and Vicia villosa (VVA-B4) have been studied by affinity chromatography on columns of the immobilized lectins, and quantitatively analyzed by
Regional distribution of glycoconjugates in normal, transitional and neoplastic human colonic mucosa. A histochemical study using lectins.
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Belépés Regisztrálás
Regional distribution of glycoconjugates in normal and neoplastic colonic mucosa was studied by means of eight lectins: Dolichos biflorus (DBA), Glycine max (SBA), Triticum vulgare (WGA), Arachis hypogaea (PNA), Griffonia simplicifolia-I (GS-I), Canavalia ensiformis (Con A), Limax flavus (LFA), and
Characterization of a new lectin of soybean vegetative tissues.
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Lectins are carbohydrate-binding proteins that occur widely among plants. Lectins of plant vegetative tissues are less well characterized than those of seeds. Previously, a protein of soybean (Glycine max [L.] Merr.) leaves was shown to possess properties similar to the seed lectin. Here we show
Echinostoma caproni and E. trivolvis alter the binding of glycoconjugates in the intestinal mucosa of C3H mice as determined by lectin histochemistry.
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Mouse (C3H) mucosal glycoconjugates were examined in normal small intestines and intestines infected with Echinostoma caproni or E. trivolvis using six different fluorescein-conjugated lectins: Triticum vulgaris agglutinin (WGA), Ulex europaeus agglutinin I (UEA-I), Ricinus communis agglutinin I
Increase of blood group A and loss of blood group Sda activity in the mucus from human neoplastic colon.
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Aqueous extracts of human neoplastic and adjacent normal colonic mucosa were investigated for hemagglutination inhibition of both the anti-A serum and the Dolichos biflorus lectin. The anti-A antiserum was inhibited by the extracts from neoplastic tissues to a much higher extent than by that from
Chemoenzymatic synthesis of glycopolypeptides carrying alpha-Neu5Ac-(2-->3)-beta-D-Gal-(1-->3)-alpha-D-GalNAc, beta-D-Gal-(1-->3)-alpha-D-GalNAc, and related compounds and analysis of their specific interactions with lectins.
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Glycopolypeptide (1) carrying the beta-D-Gal-(1-->3)-alpha-D-GalNAc unit as a kind model of asialo-type mucin was synthesized through three steps: enzymatic synthesis of p-nitrophenyl disaccharide glycoside, reduction of the p-nitrophenyl group, and coupling of the amino group with the carboxyl
Secretory glycoproteins of major vestibular glands (Bartholin's glands) in female calves. Studies with usual histochemical methods and with lectin-horseradish peroxidase conjugates in normal animals and in animals implanted with anabolic drugs.
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Belépés Regisztrálás
The nature of mucins synthetized by the major vestibular glands of normal female calves and animals treated by anabolic drugs was investigated by usual histochemical methods and by lectin conjugate methods: Canavalia ensiformis (Con A), Limulus polyphemus (LPA), Lotus tetragonolobus (LTA), Arachis
O-glycosylation expression in fibroadenoma.
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Belépés Regisztrálás
Fibroadenomas are human benign breast tumors characterized by proliferation of epithelial and stroma cells of the terminal ductal unit. Expression of O-glycans seems to contribute to the proliferation and transformation events. With this in mind, we evaluated the expression of glycans in
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Írjon be egy tünetet vagy betegséget, és olvassa el azokat a gyógynövényeket, amelyek segíthetnek, beírhat egy gyógynövényt, és megtekintheti azokat a betegségeket és tüneteket, amelyek ellen használják.
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