Levels of serum leptin were measured in 150 healthy, 50 PIH pregnant women before the delivery time and their newborns by Immuno radioassay(RIA) method. Serum leptin concentrations were correlated with body weight, body mass index, blood pressure, height of uterus bottom, waist circumference. Results were as follows: ① The serum leptin levels of PIH pregnant women (25 53?1 49?g/L) were significantly higher than those of the normal preghant women (21 13?4 08?g/L). ②The cord serum leptin levels of PIH pregnant women (12 23?4 39?g/L) were significantly higher than those of the normal preghant women (10 29?3 08?g/L). ③The leptin concentrations were positively correlated with body weight, body mass index, height of uterus bottom, waist circumference in the normal pregnant women, but not in the the PIH pregnant women. ④The correlations between leptin concentrations and systolic blood pressure, diastolic blood pressure, medium artery blood pressure in the PIH pregnant women were more obviously significant than those in the normal pregnant women. ⑤The correlations between the maternal serum leptin concentrations and newborns'body weight, body mass index were not significant both in the normal pregnant women and in the PIH pregnant women, however, the maternal serum leptin levels were positively correlated with the cord serum leptin levels in the PIH pregnant women, but not in the normal pregnant women. ⑥The correlations between the leptin levels of umbilical blood and newborns'body weight, body mass index were significant. It is suggested that ①Serum leptin levels of the PIH pregnant women and the neonatal are much higher than those of the normal pregnant women. ②The leptin concentrations of the maternal and the newborn are more correlated with themselves′ fat mass accumulation in the normal pregnant women. ③The cord serum leptin level is regarded as a reliable parameter for evaluating the fetal intrauterine growth. ④The maternal serum leptin level may serve as a marker for monitoring PIH.

Objective To discuss the application of spiral CT angiography in postoperative re-examination of lower limb artery stent implantation. Methods During the period from March 2012 to March 2014 at the Affiliated Nanjing Hospital of Nanjing Medical University, CT angiography was carried out in 67 patients who had received stent implantation for arteriosclerotic occlusion of lower limb. The diseases involved 78 lower limbs, and a total of 85 stents were employed. The volume rendering (VR), maximum intensity projection (MIP), multi-planar reformation (MPR) and curved surface reconstruction (CSR) were performed to stereoscopically display the lesion’s anatomy as well as the implanted stents, and the imaging manifestations were compared with the clinical symptoms and DSA findings. Results Successful examination was accomplished in 65 patients (81 stents in total), and clear images were obtained. Of the 81 stents, no stenosis was seen in 43, Ⅱ - Ⅳ grade stenosis in 32 and complete occlusion in 6. The results were closely correlated with the clinical symptoms. The CT angiography manifestations in 31 patients (34 stents in total) were compared with their DSA performed in two weeks, and the results showed that the stenotic degrees of three stents judged by CT angiography were not consistent with those judged by DSA. The consistent rate of CT angiography was 91.2% when taking DSA as the standard. Conclusion Lower limb arterial CT angiography examination is a safe and non-invasive technique, it can clearly display the stent inner canal. Therefore, this technique is of great value in postoperative re- examination of lower limb artery stent implantation.