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Session 25  Poster Discussion
Themed Discussion: Sanctuary Sites and Intracellular Pharmacokinetics of ARV
Tuesday, 2:30-3:30 pm
Room: Room 511
      702

Efavirenz and Emtricitabine Concentrations Consistently Exceed Wild-type IC50 in Cerebrospinal Fluid: CHARTER Findings
Brookie Best*1, S Letendre1, E Capparelli1, R Ellis1, S Rossi1, P Koopmans2, I Grant1, and the CHARTER Group
1Univ of California, San Diego, US and 2Radboud Univ Nijmegen Med Ctr, Nijmegen, The Netherlands
      703

Viral Dynamics and Pharmacokinetics in vivo of Tenofovir Disoproxil Fumarate and Abacavir: Evidence of a Non-additive Antiviral Effect
Miguel Goicoechea*1, S Jain1, C Kemper2, E Daar3, J Tilles4, B Ha5, J Flaherty6, D Richman1, S Louie7, R Haubrich1, and California Collaborative Treatment Group
1Univ of California, San Diego, US; 2Santa Clara Valley Med Ctr, San Jose, CA, US; 3Harbor-Univ of California, Los Angeles Med Ctr, Torrance, US; 4Univ of California, Irvine, US; 5GlaxoSmithKline, Research Triangle Park, NC, US; 6Gilead Sci, Foster City, CA, US; and 7Univ of Southern California, Los Angeles, US
      704 Accelerator Mass Spectrometry: A New Way to Measure Intracellular NRTI Triphosphates
J Chen1, M Seymour2, L Lee1, E Fuchs1, W Hubbard1, T Parsons1, G Pakes3, C Fletcher4, C Garner2, and Charles Flexner*1
1Johns Hopkins Univ, Baltimore, MD, US; 2Xceleron Ltd, York, UK; 3GlaxoSmithKline, Research Triangle Park, NC, US; and 4Univ of Colorado Hlth Sci Ctr, Denver, US
      705

Efavirenz Increases MRP1 Efflux Transporter Function while Darunavir/Ritonavir Inhibits MRP1 Expression in Healthy Volunteers
Lawrence Lee*1,2, G Soon1, P Shen1, C Flexner2, and P Pham2
1Natl Univ of Singapore and Natl Hlthcare Group and 2Johns Hopkins Univ, Baltimore, MD, US