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- W2106533741 abstract "ABSTRACT Gene expression studies of subcutaneous adipose tissue may help to better understand the mechanisms behind body fat changes in HIV-infected patients who initiate antiretroviral therapy (ART). Here, we evaluated early changes in adipose tissue gene expression and their relationship to fat changes in ART-naive HIV-infected patients randomly assigned to initiate therapy with emtricitabine/tenofovir plus efavirenz (EFV) or ritonavir-boosted lopinavir (LPV/r). Patients had abdominal subcutaneous adipose tissue biopsies at baseline and week 16 and dual-energy-X-ray absorptiometry at baseline and weeks 16 and 48. mRNA changes of 11 genes involved in adipogenesis, lipid and glucose metabolism, mitochondrial energy, and inflammation were assessed through reverse transcription-quantitative PCR (RT-qPCR). Additionally, correlations between gene expression changes and fat changes were evaluated. Fat increased preferentially in the trunk with EFV and in the limbs with LPV/r ( P < 0.05). After 16 weeks of exposure to the drug regimen, transcripts of CEBP/A , ADIPOQ , GLUT4 , LPL , and COXIV were significantly down-regulated in the EFV arm compared to the LPV/r arm ( P < 0.05). Significant correlations were observed between LPL expression change and trunk fat change at week 16 in both arms and between CEBP/A or COXIV change and trunk fat change at the same time point only in the EFV arm and not in the LPV/r arm. When combined with emtricitabine/tenofovir as standard backbone therapy, EFV and LPV/r induced differential early expression of genes involved in adipogenesis and energy metabolism. Moreover, these mRNA expression changes correlated with trunk fat change in the EFV arm. (This was a substudy of a randomized clinical trial [LIPOTAR study] registered at ClinicalTrials.gov under identifier NCT00759070.)" @default.
- W2106533741 created "2016-06-24" @default.
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- W2106533741 date "2014-08-25" @default.
- W2106533741 modified "2023-10-18" @default.
- W2106533741 title "Differential Subcutaneous Adipose Tissue Gene Expression Patterns in a Randomized Clinical Trial of Efavirenz or Lopinavir-Ritonavir in Antiretroviral-Naive Patients" @default.
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- W2106533741 doi "https://doi.org/10.1128/aac.03481-14" @default.
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