ERBB2 and Impaired glucose tolerance: Ashfaque et al. found that serum ErbB2 levels were significantly higher in patients with T2D than in those with impaired fasting glucose (IFG) and/or impaired glucose tolerance (IGT), and those with IFG and IGT had a higher ErbB2 compared to those with normal glucose tolerance, after adjusting for age, sex, and body mass index33.