Lectin Histochemistry
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. Evaluation of the antischistosomal activity of sulfated α-D-glucan from the lichen Ramalina celastri free and encapsulated into liposomes
The antischistosomal activity of the sulfated polysaccharide α-D-glucan (Glu.SO4) extracted from Ramalina celastri was evaluated after encapsulation into liposomes (Glu.SO4-LIPO) in Schistosoma mansoni-infected mice. The effect of treatment with Glu.SO4 and Glu.SO4-LIPO (10 mg/kg) on egg elimination, worm burden and hepatic granuloma formation was assessed
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-04
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2. HistoquÃmica com lectinas de sementes de Cratylia mollis analisando tecidos prostÃticos humanos
Prostate cancer is a malignant tumour of major incidence in elderly men in the developed countries and the second major cause of death for cancer. Lectins are proteins or glycoproteins, which recognize specifically and reversibly free or conjugated carbohydrates. They have been used in histochemistry to evaluate changes in the composition and expression of c
Publicado em: 2009
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3. Carcinoma ductal invasivo mamÃrio esporÃdico: uma abordagem histoquÃmica e imunohistiquÃmica
Breast cancer is the most frequent neoplasia and the main cause of cancer death in women worldwide. Among the several types of mammary gland neoplasia Invasive Ductal Carcinoma (IDC) represents 65% to 80% of all carcinomas. The major problem concerning this neoplasia is the great genotypic and phenotypic heterogeneity. This feature explains the increasing se
Publicado em: 2009
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4. Estudo da toxicidade da Ipomoea carnea em ratas durante o período perinatal. Avaliação dos possíveis efeitos lesivos no tecido placentário / Ipomoea carnea toxicity study in rats during perinatal period. Evaluation of possible harmful effects on the placental tissue
A Ipomoea carnea é uma planta tóxica amplamente distribuída no Brasil e em outros países tropicais. Durante os períodos de seca esta planta se mantém verde, podendo servir como fonte de alimento para os animais de produção. A intoxicação natural é de caráter crônico e ocorre quando ruminantes particularmente, caprinos ingerem a planta, estes ani
Publicado em: 2009
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5. AplicaÃÃes biotecnolÃgicas das lectinas ClaveLL (Cladonia verticillaris Lichen Lectin) E BmoLL (Bauhinia monandra Leaf Lectin)
Lectinas sÃo proteÃnas presentes em diferentes organismos, dos quais sÃo isoladas; possuem origem nÃo imune e habilidade para se ligarem a carboidratos ou glicoconjugados, atravÃs de sÃtios especÃficos; forÃas de interaÃÃo eletrostÃtica e a presenÃa de Ãons metÃlicos podem influenciar o processo de ligaÃÃo. Neste trabalho, foram avaliadas a l
Publicado em: 2008
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6. Capacidade de aderÃncia Ãs cÃlulas epiteliais da cavidade oral e perfil histoquÃmico de culturas de candida estocadas na micoteca urm / Adherence capacity to epithelial cells and histochemistry profile of candida spp. stocked in urm culture collection
Several studies report the adherence capacity of Candida spp. to epithelial cells, but comparative studies based in this pathogenicity factor versus cellular recognition via cell surface carbohydrates are scarce. This study aimed to evaluate the adherence ability of 20 Candida albicans, six C. krusei, 15 C. parapsilosis and five C. tropicalis strains to huma
Publicado em: 2007
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7. HISTOQUÃMICA COM LECTINAS EMPREGANDO CRIPTATOS DE LANTANÃDEOS CONJUGADOS Ã Con A COMO MARCADOR LUMINESCENTE DE TECIDOS DE PRÃSTATA HUMANA
Criptatos de lantanÃdeos sÃo amplamente usados como marcadores luminescentes e lectinas tÃm sido utilizadas para investigar e caracterizar resÃduos de carboidratos em glicoconjugados. Neste trabalho Con A foi conjugada ao criptato de EurÃpio (crip(Eu)) para ser usado como marcador em histoquÃmica para a identificaÃÃo de resÃduos de glicose/manose em
Publicado em: 2007
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8. AvaliaÃÃo do Ãster de acridina como marcador conjugado à lectina em histoquÃmica
Neoplasic cell transformations present differences in the composition and distribution of oligosaccharides in cell surface glicoproteins and glicolipids. Lectins have been used as auxiliary tools in histopathologic diagnosis to mammary, uterus and brain tissues, for example. Chemiluminescence is a technique with low detection threshold and large dynamic spec
Publicado em: 2004
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9. HistoquÃmica e anÃlise digital de imagens em neoplasias cutÃneas
This work evaluated alterations in the expression of carbohydrates and the density of tumour cells and Langerhans cells (LC) using lectin histochemistry, immunohistochemistry and computer image analysis in neoplasic cutaneous tissues. Biopsies of basal cell carcinoma (BCC, n=35), epidermoid carcinoma (EpC, n= 18), tricoepithelioma (TE, n=12), keratoacanthoma
Publicado em: 2003
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10. An ultrastructural and lectin-histochemical study on the seminiferous epithelium of the common tree shrew (Tupaia glis).
The seminiferous epithelium of the common tree shrew (Tupaia glis) was investigated using transmission electron microscopy and lectin-histochemistry. It was compared with that of shrews examined in previous studies. Some peculiar structures were detected in the tree shrew spermatid at the electron microscopic level. The most characteristic feature was the di
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11. Superovulation affects glucosamine trisaccharides in the glycocalyx of the rat endometrium at the time of implantation.
The presence of glucosamine trisaccharides in the glycocalyx of surface epithelial cells of the endometrium of hyperstimulated pregnant rats was compared with that of normal pregnant animals by means of lectin-avidin-ferritin histochemistry. The lectin Phytolacca americana was used. A statistically significant reduction in ferritin particles and hence, gluco
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12. A lectin histochemistry study on the development of rat microglial cells.
A lectin-histochemical study on microglial development has been performed on the rat central nervous system. Isolectin B4 from the Griffonia simplicifolia (GSA I-B4) and Ricinus communis agglutinin-120 (RCA-1) were used as labelling lectins. Our results demonstrate the existence of microglial elements in the nervous parenchyma at E18, derived from the mening