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Therapeutic potential of nerve growth factors in Parkinson's disease. Parkinson's disease (PD) is a neurodegenerative syndrome which primarily affects dopamine-producing neurons of the substantia nigra, resulting in poverty and slowness of movement, instability of gait and posture, and tremor at rest in individuals with the disease. While symptoms of the disease can be effectively managed for several years with available drugs, the syndrome is progressive and the efficacy of standard drugs wanes with time. One experimental approach to therapy is to use natural and synthetic molecules which promote survival and growth of dopaminergic neurons, so-called 'neurotrophic factors', to stabilise the diminishing population of dopaminergic neurons and stimulate compensation and growth in these cells. In this review, we examine the available evidence on 29 molecules with neurotrophic properties for dopaminergic neurons. The properties of these molecules provide ample reasons for optimism that a neurotrophic strategy can be developed that would provide a significant treatment option for patients with PD. While the search continues for even more specific, potent and long lasting agents, the single greatest challenge is the development of techniques for targeted delivery of these molecules. Drugs Aging 1999 Apr;14(4):261-87 Collier TJ, Sortwell CE Rush-Presbyterian St. Luke's Medical Center, Chicago, Illinois, USA. <[log in to unmask]> PMID: 10319241, UI: 99252799 http://www.ncbi.nlm.nih.gov/ ------------------------------------------------------------ janet paterson 52 now 41 dx 37 onset [log in to unmask] 613-256-8340 PO Box 171 Almonte Ontario K0A 1A0 Canada a new voice <http://www.geocities.com/SoHo/Village/6263/> ------------------------------------------------------------