The determination of damage and activity in the course of a disease are imp
ortant matters. Monitoring damage activity is critical in the evaluation of
individual patients and in evaluating treatment efficacy in clinical trial
s. A disease damage (severity) scale has been published for systemic sclero
sis, A number of potential cytokine and other soluble protein markers of di
sease activity for this disease have been proposed in recent publications,
reviewed here, (C) 2000 Lippincott Williams & Wilkins, Inc.