Plateau 13C-ketoisocaproic acid (KIC) enrichment during whole-body protein turnover (WBPT) study. 13C-KIC values (mean ± SD) in 12 patients in moles percent excess (MPE). ▴, amino acids plus glucose (AAG) dialysis; ▵, glucose dialysis. Plateau 13C-ketoisocaproic acid (KIC) enrichment during whole-body protein turnover (WBPT) study. 13C-KIC values (mean ± SD) in 12 patients in moles percent excess (MPE). ▴, amino acids plus glucose (AAG) dialysis; ▵, glucose dialysis. Hoey Lan Tjiong et al. CJASN 2007;2:74-80 ©2007 by American Society of Nephrology