Anti-inflammatory Effects of GTS-21 After LPS

Subjects will receive GTS-21 or placebo 3 day before injection of LPS (150 mg tid) and a single oral dose of 150 mg of GTS-21 or placebo the morning of LPS injection (07:00 AM). Subjects will then receive an oral dose of 150 mg GTS-21 or placebo at 08:00 AM and another oral dose of 150 mg GTS-21 or placebo at 1 hour before LPS administration (t=0)

Subjects will receive placebo 3 day before injection of LPS (150 mg tid) and a single oral dose of 150 mg of placebo the morning of LPS injection (07:00 AM). Subjects will then receive an oral dose of 150 mg placebo at 08:00 AM and another oral dose of 150 mg placebo at 1 hour before LPS administration (t=0).

Subjects will be randomized to oral pre-treatment with GTS-21 (150 mg tid 3 days before LPS injection and an oral dose of 150 mg GTS-21 on the morning of the day of the experiment (07:00 AM). Subjects will then receive an oral dose of 150 mg GTS-21 or placebo at 08:00 AM and another oral dose of 150 mg GTS-21 or placebo at 1 hour before LPS administration (t=0). One hour after ingestion of the last dosage of the study drug, purified LPS prepared from E coli O:113 (2 ng/kg iv) will be injected intravenously.