Polyunsaturated fatty acids in the central nervous system: evolution of concepts and nutritional implications throughout life Jean-Marc Alessandri, Philippe Guesnet, Sylvie Vancassel, Pierre Astorg, Isabelle Denis, Bénédicte Langelier, Sabah Aïd, Carine Poumès-Ballihaut, Gaëlle Champeil-Potokar and Monique Lavialle Reprod. Nutr. Dev., 44 6 (2004) 509-538 DOI: 10.1051/rnd:2004063