TABLE 5.

Summary of [¹³C]leucine turnover studies in the 8 study subjects¹

	Low-normal pH	High-normal pH	P value2
	μmol · kg−1 · h−1	μmol · kg−1 · h−1
Final arterial pH	7.37 ± 0.01	7.44 ± 0.02	<0.001
Fasting
Leucine flux	77.7 ± 10.4	84.0 ± 13.8	0.02
Leucine oxidation	10.0 ± 2.6	10.8 ± 4.7	0.54
Protein synthesis	67.7 ± 9.0	73.3 ± 12.0	0.01
Protein degradation	77.7 ± 10.4	84.0 ± 13.8	0.02
Protein balance	−10.0 ± 2.6	−10.8 ± 4.7	0.54
Postprandial
Leucine flux	90.2 ± 17.4	95.9 ± 13.7	0.17
Leucine oxidation	15.9 ± 3.5	17.2 ± 6.2	0.63
Protein synthesis	73.6 ± 16.4	78.7 ± 13.0	0.23
Protein degradation	29.0 ± 24.9	35.2 ± 15.2	0.22
Protein balance	44.6 ± 11.7	43.5 ± 7.3	0.77

¹All values are means ± SDs.

²Significance of difference between means tested by paired t test.