Objective To study the variable number tandem repeats(VNTR)polymorphism in intron 4 of the endothelial nitric oxide synthase(eNos)gene and its relationship with plasma NO in patents with PAH of COPD.Methods The VNTR polymorphism in intron 4of the eNos genes of PAH COPD and healthy control were detected by PCR.The plasma level of NO3-/NO2-was measured by spectrophotometer,which was used as an index of NO synthesis.Data were analyzed according to the different genotype and allelic gene frequency.Results The COPD PAH group significant higher frequency of VNTR 4a allele and 4a/4b allele and 4a/4b+4a/4a genotype than those of the control(P=0.027,P

Objective To investigate the curative effect and safety of transcatheter arterial chemoembo -lization (TACE) containing raltitrexed scheme for primary hepatocellular carcinoma (PHCC).Methods From May 2013 to June 2014,a total of 90 patients with inoperable PHCC were treated with TACE containing raltitrexed scheme.The short-term effect,long-term effect and adverse reactions were analyzed.Results Of the 90 patients,complete response was obtained in 23,partial response in 36,stable disease in 24 and progressive disease in 7,the effective rate was 65.6％.The one-year survival rate was 72.2％,the median survival time was 15.9 months,and the progression free survival was 9.1 months.Single factor analysis showed that the statistically significant differences in survival rate existed among the patients with different BCLC staging,combination therapy,lipiodol deposit pattern and vascular tumor thrombus (P＜0.05).Multivariate analysis of Cox model indicated that BCLC staging (x2=9.83,P=0.002) and combined therapy (x2=6.40,P=0.011) were independent prognostic factors.The main adverse reactions were fever,pain,vomiting and bone marrow suppression.Grade Ⅲ-Ⅳ adverse reactions were rare and no treatment-related death occurred.Conclusion For the treatment of inoperable PHCC,TACE containing raltitrexed scheme is effective and safe,and this therapy can be well tolerated by patients.

Objectives To compare the clinical features between rhinovirus and respiratory syncytial virus infection in lower respiratory tract in children. Methods From December 2012 to May 2013, direct immunofluorescence assay was per-formed to test RSV in 1 037 nasal aspirate specimens with LRTIs. RT-PCR method was used to test HRV RNA. The medical re-cords of patients with a positive test of HRV or RSV were reviewed and compared. Results The isolating rate for HRV and RSV was 8.78%(91/1 037) and 17.16%(178/1 037) respectively. The frequency of co-infection of HRV with other virus was 18.68%, higher than that of RSV (7.30%,χ2=7.867, P=0.005). The age distribution had significant difference between children infected with HRV and RSV (Z=5.40, P<0.001). 78.38% patients with HRV infection were younger than 3 years old, and 83.03%patients with RSV infection were younger than 1 year old. Dyspnea, hyoxemia and wheezing were more common in pa-tients with RSV infection. Admission occurred much later in the course of the HRV infection (P<0.01). Leukocytosis, eosinophi-lia, and an elevated total serum IgE were more common in patients with HRV infection (P<0.05). Conclusions HRV is one of the important causes of LRTIs in Suzhou. The susceptible population, clinical presentation and laboratory results of HRV infec-tions are different from that of RSV infections.