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| Golombieski,Ronaldo Medeiros; Graichen,Daniel Ângelo Sgranzerla; Rocha,João Batista Teixeira da; Valente,Vera Lúcia da Silva; Loreto,Élgion Lúcio da Silva. |
| Selenium is an important dietary micronutrient and an essential component of selenoproteins and the active sites of some enzymes, although at high concentrations it is toxic. We investigated diphenyl diselenide ((C6H5)2Se2 ) for its effects on the developmental stages of Drosophila melanogaster and found that in the larval and pupae stages the toxic threshold for this compound when added to the banana-agar medium on which the larva were fed was 350 µmol. In adult flies, fed on the same media, there were no observable toxic effects below 500 µmol but there were toxic effects above 600 µmol, indicating that adult flies were more resistant to selenium intoxication. In larvae, a when diphenyl diselenide was present above the toxic threshold there was increased... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gene activation; Hsp83 gene; Selenium; Diphenyl diselenide. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000100022 |
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| Shulzhenko,N.; Morgun,A.; Franco,M.; Souza,M.M.; Almeida,D.R.; Diniz,R.V.Z.; Carvalho,A.C.C.; Pacheco-Silva,A.; Gerbase-DeLima,M.. |
| The purpose of the present study was to investigate the expression (mRNA) of CD40 ligand (CD40L), interferon-gamma (IFN-gamma) and Fas ligand (FasL) genes in human cardiac allografts in relation to the occurrence of acute cardiac allograft rejection as well as its possible value in predicting acute rejection. The mRNA levels were determined by a semiquantitative reverse transcriptase-polymerase chain reaction method in 39 samples of endomyocardial biopsies obtained from 10 adult cardiac transplant recipients within the first six months after transplantation. Biopsies with ongoing acute rejection showed significantly higher CD40L, IFN-gamma and FasL mRNA expression than biopsies without rejection. The median values of mRNA expression in biopsies with and... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Rejection; Cardiac allograft; Immunologic monitoring; MRNA; Gene activation; Interferon-gamma. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000600013 |
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