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Chronic inflammation is a hallmark of HIV infection. Eicosanoids reflect inflammation, oxidant stress, and vascular health and vary by sex and metabolic parameters. Raltegravir (RAL) is an HIV-1 integrase inhibitor that may have limited metabolic effects. We assessed urinary F 2 -isoprostanes (F 2 -IsoPs), prostaglandin E 2  (PGE-M), prostacyclin (PGI-M), and thromboxane B 2  (TxB 2 ) in HIV-infected women switching to RAL-containing antiretroviral therapy (ART). Thirty-seven women (RAL = 17; PI/NNRTI = 20) with a median age of 43 years and BMI 32 kg/m 2  completed week 24. TxB 2  increased in the RAL versus PI/NNRTI arm (+0.09 versus −0.02;  P  = 0.06). Baseline PGI-M was lower in the RAL arm ( P  = 0.005); no other between-arm cross-sectional differences were observed. In the PI/NNRTI arm, 24-week visceral adipose tissue change correlated with PGI-M (rho = 0.45;  P  = 0.04) and TxB 2  (rho = 0.44;  P  = 0.005) changes, with a trend seen for PGE-M (rho = 0.41;  P  = 0.07). In an adjusted model, age ≥ 50 years ( N  = 8) was associated with increased PGE-M  (P  = 0.04). In this randomized trial, a switch to RAL did not significantly affect urinary eicosanoids over 24 weeks. In women continuing PI/NNRTI, increased visceral adipose tissue correlated with increased PGI-M and PGE-M. Older age (≥50) was associated with increased PGE-M. Relationships between aging, adiposity, ART, and eicosanoids during HIV-infection require further study.

mediators of inflammation

Urinary Eicosanoid Metabolites in HIV-Infected Women with Central Obesity Switching to Raltegravir: An Analysis from the Women, Integrase, and Fat Accumulation Trial