Table 1.

Comparison of the lipolytic rate and FFA re-esterification via glyceroneogenesis between human subcutaneous (SAT) and visceral (VAT) adipose tissue.

Human Fat Depot (n=12)	SAT	VAT
Glycerol output (G) in μmoles/g of AT/1h = lipolytic index	0.44 ± 0.11	0.66 ± 0.23
Fatty acid output (FFA) in μmoles/g of AT/1h	0.46 ± 0.19	1.04 ± 0.34
Free fatty acid versus glycerol output (FFA/G) in μmoles/g of AT/1h (without GNG, should be 3)	1.05 ± 0.46	1.57 ± 0.48
[14C1|-pyruvate incorporation into triglycerides in nmoles/g of AT/1h = FFA re-esterification via GNG	5.60 ± 3.29	8.11 ± 2.86
PEPCK-C specific activity in nmoles/mn/mg protein	0.67 ± 0.21	1.35 ± 0.64

Glycerol and FFA release were measured in the culture medium and FFA re-esterification via glyceroneogenesis was appreciated by measuring the [¹⁴C₁|-pyruvate incorporation into triglycerides and the PEPCK-C enzyme activity in subcutaneous and visceral fat explants from 12 lean women. The results are expressed as mean ± SEM. *(p < 0.05) between SAT and VAT mean values.