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

Prevention of prednisone-induced negative nitrogen balance. Effect of dietary modification on urea generation rate in patients on hemodialysis receiving high-dose glucocorticoids.

To assess whether increasing dietary protein and calorie intake can ameliorate the negative nitrogen balance induced by 70 to 120 mg/d prednisone, we studied nitrogen intake and net urea generation rate in patients undergoing hemodialysis for 10 to 14 days after renal transplantation. Seven patients receiving prednisone with moderately restricted protein (0.73 +/- 0.03 g/kg of body weight per day) and calorie (20 +/- 4 kcal/kg of body weight per day) intake had high urea nitrogen generation rates (199 +/- 18 mg/kg.d) and protein catabolic rates (1.45 +/- 0.12 g/kg.d) and were in marked negative protein balance (-0.72 +/- 0.12 g/kg.d). An increase in protein (1.30 +/- 0.06 g/kg.d) and calorie (33 +/- 3 kcal/kg.d) consumption in another eight prednisone-treated patients resulted in protein balance (-0.02 +/- 0.12 g/kg.d) without further increasing urea generation (174 +/- 9 mg/kg.d). Six control patients undergoing hemodialysis after surgery who were not receiving prednisone had lower urea generation rates (109 +/- 15 mg/kg.d) and were in nitrogen balance. Nitrogen wasting is therefore not an inevitable consequence of high-dose glucocorticoid therapy and can be effectively prevented by simple nutritional modification without increasing hemodialytic requirements.[1]

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