Objective To study the relationship between umbilical cord leptin levels and fetal growth as well as neonatal birth weight. Methods One hundred and forty - two neonates selected from February 2009 to June 2013 in Shangqiu First People's Hospital according to the different gestational age and birth weight were divided into 3 groups. Group A included 44 cases(small for gestational age,birth weight below the average weight of the 10th percentile at the same gestational age),23 boy cases,21 girl cases;group B included 56 cases(appropriate for gestational age,birth weight at the average weight of the 10th to 90th percentile at the same gestational age),30 boy cases,26 girl cases;group C included 42 cases(large for gestational age,birth weight above the average weight of the 90th percentile at the same gestational age),22 boy cases,20 girl cases. Neonatal body mass index,birth weight,placenta weight and umbilical lep-tin levels of three groups were compared. Results Neonatal birth weight,neonatal body length,body mass index and the placenta weight leptin levels in group A were significantly lower than those of group B,having statistically significant difference(all P ﹤ 0. 001);Neonatal birth weight,neonatal body length,body mass index and the placenta weight leptin levels in group C were significantly higher than those in group B,with statistically significant difference( all P ﹤0. 001). Neonatal birth weight in the boy group was obviously higher than that of the girl group,and the difference was statistically significant(P ﹤ 0. 001). Neonatal leptin levels in the boy group were significantly lower than that of the girl group,and the difference was statistically significant(P ﹤ 0. 001). There were positive correlations between the umbili-cal cord leptin levels and the neonatal birth weight,neonatal length,neonatal weight index and the placenta weight(r =0. 382,0. 276,0. 358,0. 412,all P ﹤ 0. 01). Conclusions The umbilical cord leptin levels are closely associated with neonatal birth weight and intrauterine growth retardation,and it can be used as one of the important indicators for reflec-ting neonatal birth weight and fetal growth.

Objective To study the value of score for neonatal acute physiology Ⅱ(SNAP]Ⅱ) and its extension version Ⅱ (SNAPPE-Ⅱ) in predicting neonatal necrotizing enterocolitis (NEC) outcome.Methods We explored 73 NEC patients by statistics who were treated in our hospital from January 2002 to January 2012.The patients were divided into two groups:surgery group and non-surgery group,then they were divided into subgroups:alive group and death group.The general information including birth weight,age,clinical manifestations,treatment of patients were collected.Every patient was checked and scored by the methods SNAP-Ⅱ] and SNAPPE-Ⅱ in time.Results The scores (27.0 ± 2.3,26.5 ± 1.8) of surgery group including SNAP-Ⅱ and SNAPPE-Ⅱ were higher than those (14.0 ± 2.1,15.0 ± 2.5) in the non-surgery group(P ＜ 0.01).The scores(31.0 ± 3.2,31.0 ± 3.4) of the death group including SNAP-Ⅱ and SNAPPE-Ⅱ were higher than those(11.0 ± 2.5,10.0 ± 3.6) in the alive group(P ＜ 0.01).According to the area under the curve(AUC) analyzed by the receiver operating characteristic(ROC) curve for measuring the scores of surgery predicting,AUC was 0.726 for SNAP-Ⅱ and 0.732 for SNAPPE-Ⅱ.The value of predicting surgery risk was 20 and 24 respectively.According to the AUC analyzed by the ROC curve for measuring the scores for surgery predicting,AUC was 0.752 for SNAP-Ⅱ and 0.825 for SNAPPE-Ⅱ.The value of predicting mortality risk was 31 and 33 respectively.All P values were less than 0.01 and there were significant differences.Conclusion The two kinds of score for neonatal acute physiology have an important significance in predicting surgery and mortality risk of NEC.