Research Article

Rosiglitazone-Mediated Effects on Skeletal Muscle Gene Expression Correlate with Improvements in Insulin Sensitivity in Individuals with HIV-Insulin Resistance

Table 1

Subject characteristics.

ControlHIV-ISHIV-IRHIV-IR (treated)
( 𝑁 = 2 2 )( 𝑁 = 2 1 )( 𝑁 = 1 9 )( 𝑁 = 1 0 )

Gender (M/F)10/1213/88/114/6
Race/ethnicity (AA/H/C)2/2/1815/2/410/3/67/0/3
Age (y) 3 8 ± 1 . 5 4 1 ± 1 . 4 4 1 ± 1 . 5 4 1 ± 2 . 3
BMI (kg/m2) 2 5 . 5 ± . 9 2 8 ± 1 . 4 2 7 ± . 8 2 6 ± 1 . 0
Viral load (copies/mL)N/A 4 0 0 ( 4 0 ; 3 4 , 3 2 0 ) 5 0 ( 4 0 ; 1 6 , 2 9 1 ) 9 0 0 ( 4 0 ; 1 6 , 2 9 1 )
CD4+ cells (cells/mm3) 5 0 0 ± 6 5 . 3 5 3 0 ± 5 8 . 8 6 6 8 ± 7 3 . 8
PI, NRTI, NNRTI221
PI, NRTI1274
NRTI, NNRTI452
NRTI010
No HIV meds332
Triglycerides (mg/dL) 1 0 4 ± 1 0 . 5 1 3 2 ± 1 4 3 2 4 ± 7 9 2 5 9 ± 5 7
Insulin sensitivity (mg glucose/kg LBM/min) 1 0 . 6 ± 0 . 7 4 9 . 7 ± 0 . 4 3 4 . 4 ± 0 . 9 0 4 . 3 ± 0 . 3

Values are means ± SEM except viral load which is expressed as median and range. AA: African American; C: Caucasian; H: Hispanic; PI: protease inhibitor; NRTI: nucleoside reverse transcriptase inhibitor; and NNRTI: nonnucleoside reverse transcriptase inhibitor. HIV-IS: insulin sensitivity HIV subjects. HIV-IR: insulin-resistant HIV subjects. HIV- IR (treated) denotes subjects with insulin resistance who were treated with rosiglitazone (8 mg/d for 12 weeks). Insulin sensitivity was determined with the hyperinuslinemic euglycemic clamp and is expressed as mg glucose per kg per lean body mass per minute. Insulin sensitivity in the HIV-IR group was lower than either the control or the HIV-IS group ( 𝑃 < . 0 0 1 ). The data on improvement in HIV-associated insulin resistance with rosiglitazone treatment has been previously reported [12].