Objective To explore the relationship between obesity levels and adipocytokines like leptin,adiponectin and resistin in children.Methods One hundred and ten patients aged 2-6 years with simple obesity were selected into obesity group,which included 40 cases of slight obesity (slight obesity group),40 cases of medium obesity (medium obesity group) and 30 cases of severe obesity (severe obesity group).Forty cases of healthy children with normal bodyweight were included in control group.Their serum leptin,adiponectin and resistin levels were tested and compared.Results Serum leptin and resistin levels in obesity group were remarkably higher than those in control group (P < 0.01),whereas adiponectin level was much lower than that in control group (P< 0.01).Serum leptin and resistin levels in medium obesity group were remarkably higher than those in slight obesity group [(14.3 ±1.9) μg/L vs (7.8 ± 1.5)μg/L and (14.6±2.2) μg/Lvs (13.1 ±3.0) μg/L](P< 0.01),whereas adiponectin level was much lower than that in slight obesity group[(6.7 ± 3.0) mg/L vs (9.1 ± 3.5) mg/L](P< 0.01).Serum leptin and resistin levels in severe obesity group [(20.4 ±4.7),(18.3 ±3.2) μg/L]were remarkably higher than those in medium obesity group(P< 0.01),whereas adiponectin level [(5.1 ± 1.2) mg/L]was much lower than that in medium obesity group (P< 0.01).Conclusion The levels of adipocytokines are closely correlated with obesity level in children,especially for abdominal obesity.

Objective To investigate the correlation between the early phase insulin secretion index and 72 h continuous glucose levels in patients of impaired glucose tolerance (IGT). Methods According to repeated 75 g oral glucose tolerance test (75 g OGTT) ,62 cases were divided into 2 groups: normal glucose tolerance group (NGT group, 30 cases) and isolated impaired glucose tolerance group (IGT group, 32 cases). Insulin levels were detected and HOMA-IR,HOMA-β , ΔI30/ΔG30,AUCI were calculated. The blood glucose levels were monitored by continuous glucose monitoring system for 72 h. The characteristics of postprandial glucose excursion were studied based on peak postprandial glucose (PPC) concentration, time to PPG (Δt) , postprandial glucose excursion (PPGE) and duration of postprandial glucose excursion (DPE). They were statistically analyzed by SPSS12.0. Results The levels of PPG and PPGE were significantly higher in IGT group (P < 0.05). Δt and DPE delayed obviously in IGT group (P < 0.05). HOM A-IR in IGT group was higher than that in NGT group (1.68 ± 1.03 vs 1.15 ± 0.90, P < 0.01), Δ I30/ΔG30 and HOMA- β was significantly lower in IGT group than that in NGT group (3.85 ± 1.04 vs 6.42 ±1.05,52.97 ± 2.02 vs 55.68 ± 12.45, P < 0.01 or < 0.05). Conclusions Higher postprandial glucose levels are characteristics of IGT patients,and the function of islet β cell after glucose load is impaired more severely. The levels of FPG and 2hPG are positively correlated with insulin resistance, and negatively correlated with islet β cell function.