Neuropharmacological activities of MDP.

: MDP is a synthetic copy of part of the bacterial cell wall which has been shown to be the minimal structure capable of replacing Mycobacteria in Complete Freund Adjuvant. Several hundred analogs of this molecule have been produced and have been studied in various immunopharmacological systems. Special emphasis will be given here to their pyrogenic and somnogenic effects and to certain similarities which exist between MDP and Interleukin-1.