Osteoglycin response correlates with the glycemic response to weight loss in severely obese humans. Baseline correlations between osteoglycin levels and (A) body weight, (B) fat mass, (C) BMI, and (D) lean mass in severely obese patients in a weight loss intervention study. Correlations between the change in osteoglycin levels from pre-operative state to 1 month post-intervention with (E) bodyweight change, (F) BMI change and (G) glucose levels at 1 month post-intervention. Data are means ± SEM of at least 19 per group, p values are as indicated. NS = not significant.