TABLE 2.

Percentage of carbon formed from labeled substrate in medium

	TG-Palmitate		TG-Glycerol
Substrate	5 mM Glucose	17.5 mM Glucose	5 mM Glucose	17.5 mM Glucose
	% carbon	% carbon	% carbon	% carbon
1 mM [1-13C]acetate	16.6 ± 1.7a	ND	ND	ND
0.5 mM [U-13C]pyruvate	12.3 ± 2.3	12.3 ± 2.6	12.5 ± 1.1	13.9 ± 0.6
[U-13C]glucose	42.4 ± 2.0	47.0 ± 1.2b	72.1 ± 4.6	72.6 ± 5.1
2 mM [U-13C]glutamine	10.4 ± 0.7	9.2 ± 0.6	14.4 ± 0.5	13.4 ± 0.9

ND, not determined.

^aBecause [1-¹³C]acetate was used, this is equivalent to 33.2% of TG-palmitate arising from medium acetate.

^bSignificantly different from 5 mM [U-¹³C]glucose (P < 0.05).