The secondary endpoints are to document changes in: 1) whole body protein turnover (WBPT), 2) gluconeogenesis, 3) bone mineral density and markers of bone turnover, 4) fat distribution (lipoatrophy), 5) thymus size, 6) T-cell subsets, and 7) TNF-µ levels. Adverse events, such as glucose intolerance and edema, will be monitored at every visit.