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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Effects of fluorocitrate on renal ammoniagenesis and glutamine metabolism in the intact dog kidney.

Renal glutamine metabolism was studied in vivo following infusions of fluorocitrate into chronically acidotic and alkalotic dogs. Coincident with a dramatic rise in renal cortical citrate concentrations, there was a significant fall in tissue glutamate in both acid-base states. This was accompanied by a significant increase in total renal ammonia production. Glutamine metabolism and ammoningenesis in alkalotic dogs receiving fluorocitrate simulated that achieved in acidotic dogs. The simultaneous administration of alpha-ketoglutarate and fluorocitrate significantly diminished the fall in tissue glutamate and the rise in ammoniagenesis induced by fluorocitrate alone.These results are compatible with the hypothesis that ammonia production from glutamine is enhanced secondary to increased glutamate deamination. We postulate that this chain of events may be the consequence of impaired alpha-ketoglutarate production from citrate.[1]


  1. Effects of fluorocitrate on renal ammoniagenesis and glutamine metabolism in the intact dog kidney. Bourke, E., Frindt, G., Schreiner, G.E., Preuss, H.G. Kidney Int. (1979) [Pubmed]
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