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. 2016 May 4;103(6):1458–1464. doi: 10.3945/ajcn.115.125187

TABLE 1.

Infusion of stable isotopes1

Isotope Prime, μmol/kg BW Infusion rate, μmol · kg BW−1 · h−1
L-[guanidine-15N2]-arginine 3.75 3.75
L-[13C,2H4]-citrulline or L-[13C,2H2]-citrulline 0.88 0.30
L-[ring-2H5]-phenylalanine 3.60 3.60
L-[ring-2H2]-tyrosine 1.14 1.14
L-[ring-2H4]-tyrosine 0.31 —
1

Stable isotopes were purchased from Cambridge Isotopic Laboratories. BW, body weight.