The Effects of Hydrocortisone in Endotoxemia in Normal Volunteers

The body's immune response to injury otr infection is very complex. Immune cell activity, the release of specific mediators (such as proteins), genetics (Deoxyribonucleic acid or DNA) and/or the body's "instructions" for making proteins (Ribonucleic Acid or RNA) may effect the body's clinical response to a stress such as an infection.Hydrocortisone is a substance produced by the body (in the adrenal gland)in response to stress such as infection or injury. Endotoxin is a man- made substance, which causes the body to "mimic" sickness (fever, chills, and achiness) for a few hours. This study is designed to give hydrocortisone before and/or after endotoxin to determine if this medication can prevent or relieve any of the symptoms caused by endotoxin.In addition, this study may determine whether any of the above(proteins,DNA,RNA,etc.) correlate with or affect the body's response to hydrocortisone and/or endotoxin. This will enable the investigator to better understand whether treatment with this substance can alter the body's immune response.