{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T06:55:12Z","timestamp":1789973712991,"version":"4.0.1"},"reference-count":51,"publisher":"American Physiological Society","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["American Journal of Physiology-Endocrinology and Metabolism"],"published-print":{"date-parts":[[2008,7]]},"abstract":"<jats:p>In this cross-sectional study, we sought to determine whether gene expression of macrophage markers and inflammatory chemokines in lipoatrophic subcutaneous abdominal adipose tissue and liver fat content are increased and interrelated in human immunodeficiency virus (HIV)-1-positive, highly active antiretroviral therapy (HAART)-treated patients with lipodystrophy (HAART+LD+; n = 27) compared with those without (HAART+LD\u2212; n = 13). The study groups were comparable with respect to age, gender, and body mass index. The HAART+LD+ group had twofold more intra-abdominal ( P = 0.01) and 1.5-fold less subcutaneous ( P = 0.091) fat than the HAART+LD\u2212 group. As we have reported previously, liver fat was 10-fold higher in the HAART+LD+ compared with the HAART+LD\u2212 group ( P = 0.00003). Inflammatory gene expression was increased in HAART-lipodystrophy: CD68 4.5-fold ( P = 0.000013), tumor necrosis factor (TNF)-\u03b1 2-fold ( P = 0.0094), chemokine (C-C motif) ligand (CCL) 2 2.5-fold ( P = 0.0024), CCL3 7-fold ( P = 0.0000017), integrin \u03b1M (ITGAM) 3-fold ( P = 0.00067), epidermal growth factor-like module containing, mucin-like, hormone receptor-like (EMR)1 2.5-fold ( P = 0.0038), and a disintegrin and metalloproteinase domain (ADAM)8 3.5-fold ( P = 0.00057) higher in the HAART+LD+ compared with the HAART+LD\u2212 group. mRNA concentration of CD68 ( r = 0.37, P = 0.019), ITGAM ( r = 0.35, P = 0.025), CCL2 ( r = 0.39, P = 0.012), and CCL3 ( r = 0.54, P = 0.0003) correlated with liver fat content. In conclusion, gene expression of markers of macrophage infiltration and adipose tissue inflammation is increased in lipoatrophic subcutaneous abdominal adipose tissue of patients with HAART-associated lipodystrophy compared with those without. 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