Langerhans Cells
Mostrando 37-48 de 244 artigos, teses e dissertações.
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37. Quantitative analysis of Langerhans cells in oral mucosa of patients treated with allogeneic bone marrow transplantation with chronic graft versus host disease / Análise quantitativa das células de Langerhans em mucosa bucal de pacientes submetidos ao transplante de medula óssea alogênico com doença enxerto contra hospedeiro crônica
A doença enxerto contra hospedeiro é uma complicação comum nos pacientes submetidos ao transplante de medula óssea alogênico. Com o objetivo de contribuir para o esclarecimento da participação das células de Langerhans na doença enxerto contra hospedeiro crônica (GVHDc) quando de sua ocorrência na mucosa bucal, foram analisados 40 pacientes oncoh
Publicado em: 2007
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38. CÃlulas de Langerhans no colo uterino de mulheres HIV â soropositivas com neoplasia intraepitelial cervical
Objective: To compare the density of cervical mucosa Langerhans Cells (LC) in HIVpositive women with HSIL or LSIL. Method: Fifty-five HIV-infected women with colposcopic and histocitologic alterations were assessed for SIL and LC density between March 2005 and March 2006. LC were identified using the S-100 immunohistochemical stain. Polymerase chain reaction
Publicado em: 2007
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39. Estudo da pele humana fotoenvelhecida após tratamento com terapia fotodinâmica associada ao ácido 5-delta-aminolevulínico tópíco: avaliação imunoistoquímica, do colágeno e do tecido elástico / Study of photo aged human skin after photodynamic therapy treatment with topic 5 delta aminolevulinic acid: immunohistochemical, colagenous and elastic fibre analysis.
PDT is nowadays considered one of the therapies for photo-aging, since it gives a satisfactory response for both, aesthetic result as well as treating and preventing pre-malignous lesions that are a frequent outcome of photo-aged skin. The selective destruction of target tissue occurs through a chemical reaction, by using a photosensitizing agent exposed to
Publicado em: 2007
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40. Detecção imuno-histoquímica de células de langerhans em granuloma dentário e cisto radicular
Dental Granuloma and Radicular Cysts represent chronic periapical lesions that frequently affect the jaw bones. The Langerhans Cells are dendritic antigen-presenting cells that initiate primary T-lymphocyte-dependent immune response T. These cells play a important role in normal and pathological epithelial tissues as those seen in periapical chronic lesions.
Publicado em: 2006
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41. Papilomavírus humano (HPV) e células de Langerhans em carcinoma epidermóide oral
The Human Papillomavirus (HPV) has been strongly implicated on development of some cases of oral squamous cell carcinoma (OSCC). However, the immunological system somehow reacts against the presence of this virus. Among the cells involved on such mechanism of defense detaches the Langerhans cells (LC), which are responsible for processing and presenting anti
Publicado em: 2006
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42. Regulation of insulin secretion in islets from rats submitted a low protein diet and leucine supplementation / Regulação da secreção de insulina em ilhotas de Langerhans de ratos submetidos a restrição proteica e suplementados com leucina
We think that intra-uterine mal nutrition and after birth produce morphological and changes in endocrine pancreas and in peripheric tissue that translate insulinopenia and insulin resistance. Based on these complications we have evaluated in this work the insulin secretion regulation in Langerhans islets from rats and mice fed a low protein diet and suppleme
Publicado em: 2006
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43. "O efeito da ciclosporina A na população de células apresentadoras de antígenos em hiperplasia gengival medicamentosa" / The effect of antigen-presenting cells in the human gingival overgrowth
A proposta do nosso estudo foi comparar o número de células apresentadoras de antígenos (CAAs) presentes em biópsias de gengivite (G) e de hiperplasia gengival induzida por ciclosporina (HGIC). Vinte e oito biópsias de pacientes com G e 14 biópsias de HGIC foram analisadas no epitélio de revestimento bucal (ERB), epitélio sulcular (ES) e no tecido co
Publicado em: 2006
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44. Prolactina potencializa a secreção de insulina via formação do complexo SNARE em ilhotas pancreaticas / Prolactin modulates the insulin secretion by SNARE complex formation in neonatal rat islets
Prolactin induces maturation of insulin secretion in cultured neonatal rat islets. In this study, we investigated whether the improved secretory response to glucose caused by prolactin involves alteration in the expression, association and phosphorylation of several proteins that participate in these processes. Messenger RNA was extracted from neonatal rat i
Publicado em: 2006
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45. Normal skin of HIV-infected individuals contains increased numbers of dermal CD8 T cells and normal numbers of Langerhans cells
Dysregulation of the skin immune system (SIS) could explain the high prevalence of skin disorders in HIV+ individuals. The present study was carried out to determine whether alterations in the cell population of SIS and epidermal immunoactivation occur in the normal skin of HIV+ individuals. Forty-five biopsies were taken from the normal upper arm skin of 45
Brazilian Journal of Medical and Biological Research. Publicado em: 2004-05
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46. Dermal dendritic cell number correlates with serum autoantibody titers in Brazilian pemphigus foliaceus patients
Pemphigus foliaceus (PF) is an autoimmune bullous disease endemic in Brazil. Since serum IL-12 is increased in patients with PF and Langerhans cells (LC) produce IL-12, we titrated serum autoantibodies by indirect immunofluorescence, and quantified epidermal dendritic cells, known as LC, and dermal dendritic cells (DC). Biopsies of blistering lesions were ob
Brazilian Journal of Medical and Biological Research. Publicado em: 2004-03
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47. Prolactina induz aumento na expressão das proteinas SNARE e da sinaptotagmina 4 em ilhotas de ratos
The soluble N-ethylmaleimide-sensitive factor attached protein receptor (SNARE) molecules SNAP-25, syntaxin and VAMP-2 as well as synaptotagmins participate in the extrusion of insulin containing granules in pancreatic β -cells. During pregnancy and the perinatal periods of life, prolactin (PRL) and other lactogenic substances induce maturation of the s
Publicado em: 2004
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48. Avaliação dos efeitos tóxicos do cianeto e do tiocianato no período perinatal. Estudo em ratos / Evaluation of toxic effects of cyanide and thiocyanate during perinatal period. Study in rats
The aim of the present study was to determinate the toxic effects of long-term exposure to KCN and KSCN in rats, during perinatal period. Initially, it was achieved the toxicokinetics study of the thiocyanate in female rats, in three different physiological states: estrogenic, gestation and lactation. These animals received, per os, in the drinking water or
Publicado em: 2004