To study the effect of chronic treatment with chaethomellic acid (CA), a highly specific inhibitor of ras farnesyl-protein transferase, on the renal function of rats with renal failure induced by renal mass reduction. Male Wistar rats were subjected to 5/6 nephrectomy (RMR) or sham-operated (SO). One week after surgery, rats have been placed in four experimental groups: RMR: rats without treat- ment (n=13); RMR...
To study the effect of chronic treatment with chaethomellic acid (CA), a highly specific inhibitor of ras farnesyl-protein transferase, on the renal function of rats with renal failure induced by renal mass reduction. Male Wistar rats were subjected to 5/6 nephrectomy (RMR) or sham-operated (SO). One week after surgery, rats have been placed in four experimental groups: RMR: rats without treat- ment (n=13); RMR...
Chaetomellic acid A (CA) is a potent and highly specific inhibitor of Ras farnesyl-protein transferase that has shown to decrease oxidative stress in rats with brain damage. Oxidative stress has been suggested to play an important role in the pathogenesis of chronic renal disease. Thus, the aim of this work was to evaluate the effect of chronic treatment with CA on oxidative stress in a model of renal mass redu...
A doença renal crónica está associada com o desenvolvimento de anemia devido principalmente à diminuição da produção de eritropoetina. O ácido quetomélico (AC) é um potente inibidor seletivo da farnesil transferase e, desta forma, inibe as vias de sinalização que levam à progressão da fibrose renal. Assim, o objectivo deste trabalho foi o de estudar os efeitos do tratamento crónico com o AC nas alterações hemat...
Chaetomellic acid (CA) is a potent and highly specific inhibitor of ras farnesyl-protein transferase that seems to reduce both functional and histological damage in uninephrectomized rats subjected to renal ischaemia-reperfusion injury. The aim of this work was to evaluate the effect of chronic treatment with CA on hematocrit, urine specific gravity and urinary volume in a model of renal mass reduction. Male Wi...
Chaetomellic acid (CA) is a potent and highly specific inhibitor of ras farnesyl-protein transferase that seems to reduce both functional and histological damage in uninephrectomized rats subjected to renal ischaemia-reperfusion injury. The aim of this work was to evaluate the effect of chronic treatment with CA on hematocrit, urine specific gravity and urinary volume in a model of renal mass reduction. Male Wi...
O modelo de redução de 5/6 de massa renal (5/6 RMR) é o mais frequentemente utilizado para se estudar a hipertensão arterial associada a uma lesão renal. Neste modelo, os animais desenvolvem com o tempo uma hipertensão arterial sistémica e uma insuficiência renal crónica. Neste trabalho foram utilizados seis ratos machos da estirpe Wistar que foram anestesiados com xilazina e ketamina. A cirurgia foi simulada e...
A incidência e a prevalência da doença renal crónica continuam a aumentar em todo o mundo. O modelo de redução de 5/6 de massa renal (5/6 RMR) é um dos procedimentos experimentais mais utilizados para a indução e o estudo das alterações associadas a uma insuficiência renal crónica. A resposta adaptativa do rim à redução cirúrgica do número de nefrónios parece ser suficientemente semelhante às características fi...
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