Effect of alloxan on the transport of dicarboxylate, tricarboxylate, pyruvate and glutamate in isolated mouse liver mitochondria

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Abstract
The effect of alloxan on anion transport in isolated mouse liver mitochondria was studied with the swelling technique. Mitochondria pre-incubated with alloxan exhibited partial inhibition of the transport of malate, citrate, pyruvate and glutamate. 2n-butylmalonate caused complete inhibition of malate transport, and the translocation of citrate was completely blocked by 1,2,3-benzenetricarboxylate, while N-ethylmaleimide inhibited glutamate transport partially. The observation that alloxan inhibits different mitochondrial anion transport mechanisms emphasizes that the drug profoundly affects mitochondrial function.

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