Lectin Histochemistry
Mostrando 13-20 de 20 artigos, teses e dissertações.
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13. Spatial relationship of lectin-labelled extracellular matrix and glutamine synthetase-immunoreactive astrocytes in rat cortical forebrain regions.
Extracellular matrix proteoglycans have previously been revealed by immunocytochemical and lectin-histochemical methods as distinct perineuronal nets in the microenvironment of different types of neurons, but also as a diffuse stain throughout the neuropil in region-dependent patterns. Ultrastructural investigations of perineuronal nets in subcortical region
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14. Targeted delivery of antigen to hamster nasal lymphoid tissue with M-cell-directed lectins.
The nasal cavity of a rodent is lined by an epithelium organized into distinct regional domains responsible for specific physiological functions. Aggregates of nasal lymphoid tissue (NALT) located at the base of the nasal cavity are believed to be sites of induction of mucosal immune responses to airborne antigens. The epithelium overlying NALT contains M ce
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15. Value of mucin histochemistry in follow up surveillance of patients with long standing ulcerative colitis.
It has been suggested that diffuse changes in epithelial mucins may help to identify a subgroup of patients with ulcerative colitis who are at increased risk of developing colorectal cancer. Colonoscopic biopsy specimens were taken from 11 colitic patients shortly before colectomies were performed, in which cancer was identified. These patients were matched
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16. Patterns of lectin binding during mammalian neurogenesis.
Temporospatial changes in surface carbohydrates of neuroepithelial cells were analysed by means of lectin histochemistry in normal mouse embryos subsequent to closure of the neural tube. The lectins used were concanavalin A (con A), soybean (SBA), Maclura pomifera (MPA), peanut (PNA), wheatgerm (WGA), succinylated wheatgerm (sWGA) and Limax flavus (LFA). Alt
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17. Lectin histochemical evaluation of glycoconjugates in dog efferent ductules.
Glycoconjugates in the epithelial cells of the efferent ductules in the dog were investigated using lectin histochemistry. These ductules connect the extratesticular rete with the epididymis. The epithelium of the ductules consisted both of ciliated and nonciliated cells. Whereas the apical zone of ciliated cells showed selective binding with WGA, SWGA, SNA,
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18. Abnormal fucosylation of-ileal mucus in cystic fibrosis: II. A histochemical study using monoclonal antibodies to fucosyl oligosaccharides.
Abnormal fucosylation of cystic fibrosis mucin was previously shown using peroxidase conjugated lectins on ileal tissue sections. These abnormally fucosylated glycoproteins were investigated further using monoclonal antibodies to fucosyl oligosaccharides based on type 1 and type 2 blood group precursor chains. The results of this study, using monoclonal anti
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19. Lectin histochemistry of pregnant rat uterine tissues.
Glycoconjugate residues were examined in the rat uterus at days 10, 12 and 15 of pregnancy using 17 biotinylated lectins with specificities for a variety of carbohydrate moieties. A wide variety of glycoconjugate residues were detected in the cytoplasm of some antimesometrial and mesometrial decidual cells with lectins from Canavalia ensiformis (Con A), Lens
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20. Evaluation of three techniques for differential diagnosis of prostatic needle biopsy specimens.
AIMS: To determine whether acidic mucin staining, lectin histochemistry using Wisteria floribunda agglutinin, and immunohistochemistry using the monoclonal antibody EAB 903 are of benefit in distinguishing between hyperplastic and carcinomatous prostatic glandular tissue in needle biopsy specimens. METHODS: Formalin fixed, paraffin wax embedded prostatic nee