In the article “Novel Role for Vascular Endothelial Growth Factor (VEGF) Receptor-1 and Its Ligand VEGF-B in Motor Neuron Degeneration” by Koen Poesen, Diether Lambrechts, Philip Van Damme, Joke Dhondt, Florian Bender, Nicolas Frank, Elke Bogaert, Bart Claes, Line Heylen, An Verheyen, Katrien Raes, Marc Tjwa, Ulf Eriksson, Masabumi Shibuya, Rony Nuydens, Ludo Van Den Bosch, Theo Meert, Rudi D'Hooge, Michael Sendtner, Wim Robberecht, and Peter Carmeliet, which appeared on pages 10451–10459 of the October 15, 2008 issue, the authors acknowledge that when referring to the 10 μg of VEGF-B in the osmotic minipumps implanted into the SOD1 rats, they made an error in the calculation in the concentrations of VEGF-B delivered per day and per kilogram of body weight. The 10 μg ofVEGF-Bcorresponds to 2 μg/kg/d and not to 0.2 μg/kg/d, as incorrectly mentioned throughout the manuscript.
