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Araújo-Filho,Irami; Rêgo,Amália Cínthia Meneses; Brandão-Neto,José; Villarim-Neto,Arthur; Egito,Eryvaldo Sócrates Tabosa; Azevedo,Ítalo Medeiros; Medeiros,Aldo Cunha. |
Study with the purpose to examine the effects of duodenal switch (DS), regularly performed in morbidly obese patients, on biodistribution of sodium pertechnetate in several organs of rats. There was no early or late mortality in either rats groups. The values of percent radioactivity per gram of tissue (%ATI/g), showed no significant difference in liver, stomach, small bowel, duodenum, kidney, heart, bladder, bone and brain, when compared the DS rats with sham and controls rats. A postoperative significant increase (p<0.05) in mean %ATI/g levels was observed in spleen, pancreas and muscle in group DS rats, as compared to group S and C rats. In the lung there was an increase and in thyroid a decrease in mean %ATI/g of DS rats, when compared to sham rats... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bariatric surgery; Duodenal switch; Sodium pertechnetate; Biodistribution. |
Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000600024 |
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Barreto,George Emílio Sampaio; Oliveira,Elineusa Silva de; Villar,Flávio Augusto Guerreiro Aragão de; Santos,Gleide Souza dos; Lima,Rute Maria Ferreira; Costa,Silvia Lima; Costa,Maria de Fátima Dias; Egito,Eryvaldo Sócrates Tabosa; El-Bachá,Ramon Santos. |
The aim of this work was to study the effects of 3MC on the peroxidation of biomolecules in nuclear fractions and nonsynaptic mitochondrial respiration in organelles obtained from rat brains. The cytotoxicity towards rat primary astrocytes in vitro was also tested. 3MC at 1mM oxidized consuming oxygen at a rate of 1.98 ± 0.19 µM.min-1 and formed reactive quinones. At the same concentration, 3MC induced peroxidation of biomolecules in nuclear fractions obtained from rat brain homogenates and inhibited state 2 FADH2-linked respiration in nonsynaptic mitochondria. Furthermore, 3MC oxidized in the culture medium, leading to the formation of quinones. This toluene metabolite was cytotoxic to rat primary astrocytes. The concentration that killed 50% of cells... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Astrocytes; Brain; Cytotoxicity; 3-methylcatechol; Peroxidation; Respiration. |
Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000500012 |
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