Blood glucose levels in chicken embryos. Blood glucose levels in chicken embryos. Whole-blood glucose levels were measured on blood samples taken from a CAM vessel, 1–7 days (D1−D7) after a single, intravitellus injection of glucose (▪), mannitol (▪), or water (□) at day 8 postincubation. Results are shown as means ± SD. *P = 2.10−4; **P < 10−4 for the day-to-day comparison between glucose-injected and control embryos. Etienne Larger et al. Diabetes 2004;53:752-761 ©2004 by American Diabetes Association