RÉSUMÉ
<p><b>OBJECTIVE</b>To evaluate the prognosis and complications of expectant therapy and curettage for retained product of conception (RPOC) after second trimester termination of pregnancy (TOP).</p><p><b>METHODS</b>A total of 270 patients with RPOC following second trimester TOP in Nanfang Hospital between January, 2014 and December, 2015 were included in this study. The duration of vaginal bleeding time and menstruation recovery interval were compared between patients receiving expectant therapy and curettage for RPOC, and binary logistic regression was used to assess the risk factors for complications in bivariate and multivariate analyses.</p><p><b>RESULTS</b>The duration of vaginal bleeding time was significantly longer in expectant therapy group than in curettage group (P=0.005), while the menstruation recovery interval did not differ significantly between the two groups. The incidence of vaginal bleeding time for over 42 days was significantly higher in curettage group than in expectant therapy group (P=0.040), and the incidence of a menstruation recovery interval beyond 60 days was comparable between them. The incidence of complications was significantly higher in curettage group than in expectant therapy group either with adjustment of age, gravidity, parity, history of uterine surgery status, gestational age, type of indications, regimens for TOP and induction-abortion interval (OR=18.26 [95% CI: 3.57-93.42], P<0.001) or without adjustment (OR=10.60, [95% CI: 2.36-47.66], P=0.002).</p><p><b>CONCLUSION</b>Expectant therapy and curettage for RPOC after second trimester TOP have comparable prognosis, but curettage is associated with a significantly higher rate of complications.</p>
RÉSUMÉ
<p><b>OBJECTIVE</b>To investigate the relationship of leptin gene polymorphism with obesity in ethnic minority Hui and Uygur children in China.</p><p><b>METHODS</b>Sixty-eight ethnic minority (35 Hui and 33 Uygur) children with obesity and 69 age-matched minority (36 Hui and 33 Uygur) children without obesity were recruited from six primary schools in the sub-urban areas of Urumqi. Venous blood was sampled from all subjects after fasting for 12 hours. Leptin gene C2549A polymorphism was determined by polymerase chain reaction (PCR) and restriction fragment length polymorphism methods. Blood concentrations of lipids, leptin and insulin were measured with biochemical methods and radioimmunoassys, respectively.</p><p><b>RESULTS</b>In the 137 children tested, the prevalence of AA, AC and CC genotype was 9.5%, 33.6% and 56.9%, respectively. A allele frequency was significantly different between the two ethnic (i.e. Hui and Uygur) groups (P<0.05). A allele frequency and AA+ AC genotype frequency were not significantly different between obese and non-obese children in both ethnic groups (P>0.05). Blood leptin levels were not significantly different between obese and non-obese children with an AA+AC or CC genotype in both ethnic groups (P>0.05).</p><p><b>CONCLUSIONS</b>Leptin gene polymorphisms exist in Hui and Uygur children. The C2549A polymorphism is not significantly associated with the prevalence of obesity in both Hui and Uygur children.</p>