In Northeast Por1ugal, as in •other regions of the Mediterranean Basin, most of the olive orchards are cultivated in hilly areas under rainfed conditions and this picture will not significantly change in the near future due to natural Iimitation on water resources. We propose cover crops to Iimit soil erosion, improve soil quality and fertility, reduce the use of herbicides and other chemicals and develop the n...
Descreve-se um método de isolamento de mitocôndrias acopladas de tilápia-do-nilo Oreochromis niloticus, isoladas de células hepáticas de peixes adultos. As mitocôndrias estavam metabolicamente ativas, sendo capazes de realizarem fosforilação oxidativa, de acordo com os valores do quociente de controle respiratório. Os valores de controle respiratório obtidos com malato/piruvato (complexo I) e com succinato (com...
Several cytopathic mechanisms have been suggested to mediate the dose-limiting cumulative and irreversible cardiomyopathy caused by doxorubicin. Recent evidence indicates that oxidative stress and mitochondrial dysfunction are key factors in the pathogenic process. The objective of this investigation was to test the hypothesis that carvedilol, a nonselective [beta]-adrenergic receptor antagonist with potent ant...
Liver mitochondrial bioenergetics of Goto-Kakizaki (GK) rats (a model of non-insulin dependent diabetes mellitus) reveals a [Delta][Psi] upon energization with succinate significantly increased relatively to control animals. The repolarization rate following ADP phosphorylation is also significantly increased in GK mitochondria in parallel with increased ATPase activity. The increase in the repolarization rate ...
1984
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