Effects of dietary cystine on glucose homeostasis. (A) A 120-min IPGTT following overnight fasting in adult male mice on LC (n=12) and HC (n=12) diets after 7 weeks on the diets. (B) A 30-min IPGTT following overnight fasting for plasma glucose and insulin in adult male mice on LC (n=12) and HC (n=12) diets after 11 weeks on the diets. (C, D, E) Plasma insulin (C), glucagon (D) and adiponectin (E) after 12 weeks on the diets. Data are expressed as mean±S.E.M. ⁎P<.05, ⁎⁎P<.01, ⁎⁎⁎P<.001.