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| Registros recuperados: 11 | |
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| Souza-Atta,M.L.B.; Araújo,M.I.; D'Oliveira Júnior,A.; Ribeiro-de-Jesus,A.; Almeida,R.P.; Atta,A.M.; Carvalho,E.M.. |
| Activation of Th1 or Th2 cells is associated with production of specific immunoglobulin isotypes, offering the opportunity to use antibody measurement for evaluation of T cell function. Schistosomiasis and visceral leishmaniasis are diseases associated with Th2 activation. However, an IgE response is not always detected in these patients. In the present study we evaluated specific IgE antibodies to S. mansoni and L. chagasi antigens by ELISA after depletion of serum IgG with protein G immobilized on Sepharose beads or RF-absorbent (purified sheep IgG antibodies anti-human IgG). In schistosomiasis patients, specific IgE to SWAP antigen was demonstrable in only 10 of 21 patients (48%) (mean absorbance ± SD = 0.102 ± 0.195) when unabsorbed serum was used.... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: IgE antibodies; Immunoassays; Schistosomiasis mansoni; Visceral leishmaniasis; Kala-azar. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000900008 |
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| Primo,J.; Siqueira,I.; Nascimento,M.C.F.; Oliveira,M.F.; Farre,L.; Carvalho,E.M.; Bittencourt,A.L.. |
| Salvador (BA, Brazil) is an endemic area for human T-cell lymphotrophic virus type 1 (HTLV-1). The overall prevalence of HTLV-1 infection in the general population has been estimated to be 1.76%. HTLV-1 carriers may develop a variety of diseases such as adult T-cell leukemia/lymphoma, HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) and infective dermatitis associated with HTLV-1 (IDH). IDH is a chronic and severe form of childhood exudative and infective dermatitis involving mainly the scalp, neck and ears. It has recently been observed that 30% of patients with IDH develop juvenile HAM/TSP. The replication of HTLV-1 has been reported to be greater in adult HAM/TSP patients than in asymptomatic HTLV-1 carriers. In the current study, the... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Infective dermatitis associated with HTLV-1; HTLV-1 associated myelopathy/tropical spastic paraparesis; HTLV-1 proviral loads. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000800012 |
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| Luna,T.; Santos,S.B.; Nascimento,M.; Porto,M.A.F.; Muniz,A.L.; Carvalho,E.M.; Jesus,A.R.. |
| Human T lymphotropic virus type 1 (HTLV-1) is the causal agent of myelopathy/tropical spastic paraparesis (HAM/TSP), a disease mediated by the immune response. HTLV-1 induces a spontaneous proliferation and production of pro-inflammatory cytokines by T cells, and increasing interferon-γ (IFN-γ) and tumor necrosis factor-α (TNF-α) levels are potentially involved in tissue damage in diseases related to HTLV-1. This exaggerated immune response is also due to an inability of the natural regulatory mechanisms to down-modulate the immune response in this group of patients. TNF-α inhibitors reduce inflammation and have been shown to improve chronic inflammatory diseases in clinical trials. The aim of this study was to evaluate the ability of pentoxifylline,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: HTLV-1; TNF-α inhibitors; Pentoxifylline; Immune response. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011001100009 |
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| Chiarella,J.M.; Goldberg,A.C.; Abel,L.; Carvalho,E.M.; Kalil,J.; Dessein,A.. |
| Six hundred million people are at risk of infection by Schistosoma mansoni. MHC haplotypes have been reported to segregate with susceptibility to schistosomiasis in murine models. In humans, a major gene related to susceptibility/resistance to infection by S. mansoni (SM1) and displaying the mean fecal egg count as phenotype was detected by segregation analysis. This gene displayed a codominant mode of inheritance with an estimated frequency of 0.20-0.25 for the deleterious allele and accounted for more than 50% of the variance of infection levels. To determine if the SM1 gene segregates with the human MHC chromosomal region, we performed a linkage study by the lod score method. We typed for HLA-A, B, C, DR and DQ antigens in 11 informative families from... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: HLA; Linkage study; Human schistosomiasis. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000500010 |
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| Carvalho,E.M.; Brito,G.A.C.; Pessoa,B.B.G.P.; Ribeiro,R.A.; Capaz,F.R.. |
| The anti-inflammatory effects of long-term ethanol intoxication were determined during ethanol treatment and withdrawal on the basis of neutrophil and eosinophil migration, hind paw edema and mast cell degranulation. Male Wistar rats (180-200 g, around 2 months of age) were exposed to increasing concentrations of ethanol vapor over a 10-day period. One group was evaluated immediately after exposure (treated group - intoxicated), and another was studied 7 h later (withdrawal group). Ethanol inhalation treatment significantly inhibited carrageenan- (62% for the intoxicated group, N = 5, and 35% for the withdrawal group, N = 6) and dextran-induced paw edema (32% for intoxicated rats and 26% for withdrawal rats, N = 5 per group). Ethanol inhalation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ethanol; Inflammation; Carrageenan; Dextran; Air-pouch; Mast cells. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000100013 |
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| Registros recuperados: 11 | |
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