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(Springer, Berlin, in the press).134. Volterra, A. & Bezzi, P. in The Tripartite Synapse (edsVolterra, A., Magistretti, P. J. & Hayden, P. G.) 164–182(Oxford Univ. Press, Oxford, 2002).AcknowledgementsOur laboratory is supported by grants from the National Institute onDrug Abuse, National Institute of Neurological Diseases and Stroke,and National Institute of Mental Health.Competing interest statementThe authors declare competing financial interests: see Web versionfor details.Online linksDATABASESThe following terms in this article are linked online to:LocusLink: http://www.ncbi.nlm.nih.gov/LocusLink/CX3CR1 | fractalkineOnline Mendelian Inheritance in Man:http://www.ncbi.nlm.nih.gov/Omim/Alzheimer’s disease | Crohn’s disease | rheumatoid arthritisAccess to this interactive links box is free online.NATURE REVIEWS | <strong>DRUG</strong> <strong>DISCOVERY</strong> VOLUME 2 | DECEMBER 2003 | 985