Circulating endothelial cells(CEC)are mature endothelial cells,which have been shed from the vascular cell lining and enter into blood circulation.Rare in healthy individuals,increased CEC in peripheral blood reflects significant vascular damage and dysfunction.Increased CEC have been documented in many human diseases characterized as vascular damage,including different types of tumors.Clinical data suggest that CEC count is a promising tool for monitoring disease activity with potential to assess tumor prognosis and response to treatment.

10 mg/L)and normal CRP group (CRP≤10 mg/L).The associations between CRP and hemoglobin,albumin,prealbumin,serum ferritin in were analyzed respectively.Results HD patients'CRP indexes are higher than PD patients'(P

Background To explore the roles of human papilloma virus(HPV)and herpes simplex virus (HSV)in pathogenesis of pterygia are very important for provide more basis for the study of pterygia mechanisms.Objective The aim of the study was to detect the expression of HSV and HPV in pterygia. Methods A total of 68 specimens of pterygia and specimens of normal conjunction tissue were obtained during the operation.The expression of HSV DNA and HPV DNA in pterygia specimens and conjunetival tissue were detected and compared by real time fluorescence quantitative polymerase chain reaction(PCR).Written informed consent was obtained from each patient before the any medical procedure related to this study. Results Real time fluorescence quantitative PCR showed that HPV DNA was detected in 12(17.65％)pterygia specimens,and HSV DNA was found in 15 (22.06％)pterygia specimens；however them were detected in 6(8.82％)and 1(1.47％)in conjunctival tissue respectively.Significant differences were found in the expression both HSV DNA and HPV DNA between pterygium tissue and eonjunctival tissue(HPV：χ2=10.291,P<0.05；HSV：χ2=4.561,P<0.05).The co-expression of HSV DNA and HPV DNA was seen in 5(7.35％)pterygium specimens,but no any co-expression of HSV DNA and HPV DNA was in conjunctival specimen. Conclusion HSV and HPV may participate in the pathogenesis and development of pterygium.The detection of virus DNA can offer an experiment evidence of HSV and HPV in pterygium generation.

AIM:To observe the contents of ursolic acid and oleanolic acid in Liuwei Dihuang Pill(Radix Rehmanniae praeparata,Rhizoma Dioscoreae,Fructus Corni,Rhizoma Alismatis,etc.) from different manufacturers and explore their effects on quality of Liuwei Dihuang Pill.METHODS:Ursolic acid and oleanolic acid in Liuwei Dihuang Pill were determined by HPLC-PAD method using Kromasil C_ 18 column(4.6 mm?250 mm,5 ?m) as chromatographic column,methanol-water-phosphate(88∶12∶0.02) as the mobile phase at the rate of 1.0 mL/min.RESULTS:6.462-0.718 ?g of ursolic acid and 3.132-0.348 ?g of oleanolic acid presented a good linear relationship.The average recoveres were 99.73% and 97.59%,RSD were 1.5% and 1.7%,respectively.There were significant differences in the contents of ursolic acid and oleanolic acid in Liuwei Dihuang Pill from four different manufacturers.CONCLUSION:The method is simple,rapid and feasible to set up determination of ursolic acid and oleanolic acid in Liuwei Dihuang Pill by HPLC-PAD.Although the contents of ursolic acid and oleanolic acid have significant differences in different manufactures,the results show good consistency in the content variation of the two acids.

Objective To develop an ELISA for detection of anti-dsDNA antibody by using plasmid DNA as antigen.Methods DNA in plasmid pBV220 for prokaryotic expression vector was purified by base-cleavage. The microtiterplates were pretreated by poly-L-lysine and coated by the plasmid DNA in a dilution of 1∶50 as antigen. An ELISA method for detection of serum anti-dsDNA antibodies was developed with HRP-SPA as enzyme-labeled marker.The IIF using crithidia lucilia as substrate was performed simultaneously for comparison. The serum samples from 64 patients with SLE, 8 with MCTD and 17 with RA were detected. Results The concentration of DNA was 1 54 g/L by UV spectrophotometer at wavelength of 260 nm. The positive percentage of ELISA for anti-dsDNA was higher than that of IIF. By comparison with IIF the positive percentages in SLE, MCTD and RA groups were 23 4% vs 17 2%, 12 5% vs 12 5% and 11 8% vs 5 9%, respectively, and the coincident rates between the 2 methods were 93 8%, 100% and 94 1% respectively. The sensitivity and specificity of the developed ELISA for detection of anti-dsDNA were 100% and 93 4% when IIF was as gold standard.Conclusion The ELISA by using plasmid DNA as antigen to detect anti-dsDNA has fine precision, sensitivity and specificity. Its positive rate is higher than that of IIF thus it will contribute to monitor the activities for SLE patients′ condition.

Objective:To study the clinical results and the hospitalization cost of video-assisted thoracoscopic surgery (VATS) with ligation and suture for the treatment of spontaneous pneumothorax.Methods:Thirteen patients were treated by VATS with ligation and suture.The consumed time of operation,duration of the chest drainage,amount of the chest drainage,percentage of patient discontinuing anodyne within the postoperative 24 hours,the average length of hospitalization and the hospitalization cost were analysed.Results:Satisfactory therapeutic effects were found in all cases without postoperative death and complications. The average hospitalization time was 3 days.VATS with ligation and suture was preferable to transaxillary minithoracotomy (TAMT) in the clinical results.The hospitalization cost is less for VATS with ligation and suture (7372.47?871.3) than that with Endo-GIA (12524.32?2962.18) (P

Objective To investigate the expression of CD40 and CD40L on the surface of peripheral blood mononuclear cells(PBMCs)in asthmatic rats and the effect of anti-CD40L McAb on cytokines of it.Methods Flow cytometry and RT-PCR were used to detect the expression of CD40 and CD40L of PBMCs ih asthmatic rats.After the PBMCs Was treated with anti.CIMOL McAb.ELISA was used to detect the levels of IL-4 and IFN-γin the supematants of cultured cells.Results Compared with the normal control group.the expression of CD40 and CD40L of PBMCs in asthImatic rats increased(P＜0.05).Compared with the untreated group,the level of IL-4 and the ratio of IL4/IFN-γ decreased after the PBMCs were treated with anti-CD40L McAb(P＜0.05).Conclusion The expression of CD40 and CD40L on the surface of PBMCs in asthmatic rats Was unregulated.Anti-CD40L Mcab Can decrease the level of IL-4 and the ratio of IL_4/IFN-γ.

Objective To analyze the mechanism of nasal deformity by reviewing the possible pathogenesis and nasal anatomy and to find the effective and reliable operative methods to correct nasal deformities in unilateral cleft lip.Methods 57 patients (37 males,20 females,and range in age from 12 to 25 years,with mean of 18.6 years) with nasal deformities in unilateral cleft lip were available for this study.The nasal deformities were treated with the following surgical procedures according to the different locations and degree Of nasal deformities.The eompositive techniques included:alveolar bone grafting was taken to correct the collapse the nasaI base;a cortical plate was inserted between the two medial crura of the alar cartilage.According to the nasal contours of non-cleft side,the alar cartilage was resected and suspended to its normal and symmetrical position.The alar cartilaginous ring was reconstruction,which maintained the nostril shape 3 month postoperatively.Results A total of 57 cases were treated by the method above,and were ranged with score by operators and patients.93% of cases were evaluated as satisfaction after operation.The follow-up for 3 to 24 months showed that 52 cases had achieved satisfactory effects,5 cases showed the trend to relapse.Conclusion The cause of nasal deformities in unilateral cleft lip is complex.The study has achieved a significant improvement by synthetical correction of deformities of maxilla,cartilage and soft tissues, and the restoration of nasal-labial muscles.The rigid suspending is more important to maintain the nostril contour and avoid relapse.

Objective To explore the changes of genes associated with the nuclear factor of kappa B(NF-?B) signaling pathway in neonatal rats with early hypoxic-ischemic reperfusion brain damage(HIRBD).Methods Twenty-four SD rats at age of 7 days,with male to female of 1212,were randomized into normal control group(group A,n=8),hypoxic-ischemia reperfusion for 2 h(group B,n=8) and hypoxic-ischemia reperfusion for 4 h(group C,n=8).The tissues of hippocampus were taken for complete RNA extraction.Gene chip inspection and biological signal analysis technique were used to detect the expression of 113 involved signal molecules of NF-?B pathway.Results Compared with group A,the up-regulated expression was found in Chemokine(C-C motif) ligand 2,Dual specificity phosphatase 1,FBJ osteosarcoma oncogene(Fos) and Toll-like receptor 9.Whereas the expressions of Caspase-1,8,Mitogen-activated protein kinase kinase 6,Mitogen activated protein kinase 3 and Ras homolog gene family member a from Ras-gene famimly was found down-regulated in group B.The up-regulated expression was in Fos,IL-1? and Toll-like receptor 6,but that of down-regulation was found in Caspase-1,Extracellular matrix protein 1,Lysophosphatidic Acid G-protein-coupled receptor 2,Mucosa associated lymphoid tissue lymphoma translocation gene 1,Inhibitor of kappa B kinase epsilon and Ras homolog gene family member c.Conclusions At the early stage of HIRBD,the Toll-like receptors may induce NF-?B activation,leading to the coordinated induction of multiple genes,which is involved in inflammatory,apoptosis and cell proliferation.Genes induced by NF-?B are responsible for the physiopathological process of early brain damage in neonatal rats with HIRBD.

Objective To quantitatively analyze the coronary artery ostia by three-dimensional trans-esophageal echocardiography (3D-TEE).Methods The full-volume images of aortic root and coronary artery ostia were acquired by 3D-TEE in 95 adult patients.The Philips QLab 3DQ measurement technology was employed to determine three mutually perpendicular planes:(1) The transverse plane cross the bottom of three coronary artery sinus.(2) The sagittal plane perpendicular to sino-tubular junction.(3) The coronal plane perpendicular to the aforementioned two planes .The following relevant parameters were measured and recorded:(1) Length, width, height and area of bilateral coronary artery ostia .(2) The angle between coronary arterial outflow tract and aortic root in sagittal plane .(3) The spatial distribution of coronary artery ostia, aortic root and coronary artert sinus .Results The shape of left coronary artery ostia were more regular (round or oval) than right coronary artery ostia ( teardrop-shape or oval ).Calcification was more frequent in right coronary artery ostia (81/95, 85.26%) than that in left coronary artery ostia. There were statistical differences between left and right coronary artery in the parameters of ostial wide , area and height (t =3.85, 3.86, -4.49, all P<0.01).Most left coronary artery ostia were located inside the sinus (76/95, 80.00%), mainly in the upper third segment (69/95, 72.63%); while more than half of the right coronary artery ostia were found outside the sinus ( 53/95, 55.79%).The difference was statistically significant( χ2 =25.91, P<0.01).Conclusion The quantitative analysis of aortic root and coronary artery ostia based on the full-volume images originated from real-time 3D-TEE is feasible, which is helpful for further clinical research .