Objective:To investigate the influence of different depression degree status on the clinic symptoms and survival status in the patients with metastasis tumor in spine (MTS). Methods: By using Zung's self rating depression scale (SDS), we studied 125 patients with MTS between 1999 and 2001. Results: It was found that 44% patients with MTS were affected by depression. The survival period in the negative depression group(NDP) was longer than that in the moderate and the severe groups after a mean of 21 months follow up( P

AlM: To investigate the influences of 577nm panretinal photocoagulation ( PRP ) on the retinal thickness of macular fovea on diabetic retinopathy ( DR) .METHODS:A total of 45 eyes of 37 cases suffering from preproliferative diabetic retinopathy ( PPDR ) and proliferative diabetic retinopathy ( PDR ) undergoing 577nm PRP were enrolled in this study. The alterations of the retinal thickness of macular fovea measured by optovue optical coherence tomography( OCT) before and 1, 3, 6mo following PRP were comparatively analyzed.RESULTS: The macularfoveal retinal thickness after 1, 3mo of PRP had significantly increased that before operation (P<0. 05). After 6mo postoperative follow-up, it gradually recovered to the level before PRP, with no significant difference (P>0. 05).CONCLUSlON: After the treatment of PRP, it appeared a transient increase on the retinal thickness of macular fovea, but after 6mo following-up, the macular foveal retinal thickness decreased nearly to the levels before PRP.

A quantitative method using ultrahigh-performance liquid chromatography was established to simultaneously determine ten ginsenoside active ingredients including ginsenoside Rg6, F4, Rk3, Rh4, 20(S) -Rg3, 20(R) -Rg3, Rk1, Rg5, 20(S)-Rh2 and 20(R)-Rh2 in steamed notoginseng. The ten ginsenosides of steamed notoginseng with different head numbers, parts, and steaming time were determined by this method. An Acquity BEH C18 chromatographic column (2.1 mm x 100 mm, 1.7 microm) was used to perform the determination, which was maintained at 35 degrees C throughout the analysis. Mobile phase was composed of water and acetonitrile with flow rate at 0.3 mL x min(-1) under gradient elution, and detection wavelength was set to 203 nm for monitoring the separation. The results demonstrate ginsenoside Rg6, F4, Rk3, Rh4, 20 (S)-Rg3, 20 (R) -Rg3, Rk1, Rg5, 20 (S)-Rh2 and 20(R) -Rh2 have shown good linearity (R2 > or = 0.999 8) within 0.46-115, 2.06-515, 1.632408, 3.216-804, 1.392-348, 1.4-350, 0.496-248, 3.012-1 506, 0.82-205 and 0.832-208 mg x L(-1), and their average recoveries were 97.00%, 97.96%, 98.86%, 95.27%, 98.67%, 98.02%, 95.53%, 96.63%, 99.57% and 103.6%, respectively. The proposed approach was quick and accurate and portrayed excellent repeatability and determination efficiency. The quality of steamed notoginseng was effectively controlled, which served as a foundation for establishing a normalized processing technique and quality standard for ensuring the reliability and consistency of its clinical efficacy.
Chromatography, High Pressure Liquid ; methods ; Ginsenosides ; analysis ; Panax notoginseng ; chemistry ; Reproducibility of Results ; Steam

Objective To construct an RNA interference vector to down-regulate X-linked inhibitor of apoptosis(XIAP)gene and study the RNA interference effect on the cell cycle and growth of ovarian cancer.Methods Oligonucleotides of 64 base pairs for hairpin RNA targeting XIAP were designed, chemically synthesized,annealed,and cloned into the pSUPER vector.After identification by restriction digestion,the correct vectors were transiently transfected into SKOV3 cells,a human ovarian cancer cell line.The XIAP mRNA was detected by RT-PCR.The proteins were detected by western blot and indirect immunofluorescence staining.Flow cytometry(FCM)analysis and methyl thiazolyl tetrazolium(MTT)assay method were applied to measure cell cycle,cell growth and sensitiveness to cisplatin.Results SKOV3 cells had a high level expression of XIAP.The vector of RNA interference,which can interfere with XIAP gene was successfully constructed.After transient transfection,the expression of XIAP protein was significantly decreased in SKOV3 cells and the value of relative density was 3584?124,2138?65,1973?80 and 110 ?12,respectively(P=0.0334).At the same time,the expression of XIAP mRNA was decreased accordingly and the value of relative density was 6674?274,4532?107,2322?57 and 1864?78, respectively(P=0.0127).The FCM results showed that,the vector could increase the number of cells in G_1 phase compared with parent cells and compared with the cells transfected with pSUPER(P

Objective To investigate the effect of photochemical gene transfection on colon cancer cells mediated by polycation.Methods Based on SW480 and HT29 colon carcinoma cell culture,the intracellular localization of meso-tetraphenylporphine disulfonate(TPPS_(2a)) were observed by laser confocal scanning microscopy(LCSM).Photochemically induced cytotoxicity of TPPS_(2a) on SW480 and HT29 cell lines was evaluated by MTT assay.By flow cytometry,the light-induced transfection of EGFP plasmids mediated by PEI was studied.Results TPPS_(2a) exhibited typical vesicular localization in two colon carcinoma cell lines.The photochemical cytotoxicity based on TPPS_(2a) increased with light dose.The light dose of IC_(50) was 22 mW/cm~(2) for 6 min for SW480 cells and for 12 min for HT29 cells(wavelength: 405 nm).The light treatment based on TPPS_(2a) induced an increase in transfection efficiency to(29.61?1.15) for SW480 cells and(23.47?0.62) for HT29 cells(P

ObjectiveThis paper reported our experience with thoracoscopic management of isolated atrial fibrillation to define the efficacy and safety of this approach.MethodsThirtytwo patients ( 17 mem,15 women) with isolated atrial fibrillation underwent thoracoscopic surgery.All procedures were finished under 3 port incisions on left posterior chest.Among them 18 cases are paroxysmal and 8 persistent.ResultsThere was no operative death or major perioperative complications.One case was converted to limited thoracotomy because of bleeding.Operation time was 87 - 238 min.Paroxysmal atrial fibrillation occurred in 9 cases in hospital and all the cases were sinus rhythm after discharge.Followup 4 to 20 months,One persistent case was converted paroxysmal.ConclusionPatients with isolated atrial fibrillation can benefited by Videoassisted thoracoscopic left posterior approach with better exposure of left atrial and resection of the left atrial appendage,with decreased operative trauma and better results.

Objective To select more rapid,sensitive and specific method in detection of respiratory syncytial virus(RSV)directly from clinical specimens.Methods RSV was detected by virus isolation in tissue culture,direct smears and detection by indirect immunofluorecence assay(IFA),rapid culture assay,sandwich enzyme linked immunosorbent assay(ELISA)as well as labbed streptavidin biotin method(LSAB)from 45 specimens(nasopharyngeal aspirates,NPAs) collected from infants and young children with acute lower respiratory tract infection.Results Of 45 NPAs,12 cases(26.7%) were positive by virus isolation,14 cases(31.1%) were positive for RSV by direct detection of RSV antigen by IFA,20 cases(44.4%) were positive with rapid culture assay,4 cases(8.9%)were positive by sandwich ELISA,4 cases(8.9%)were positive by LSAB.Conclusion Rapid culture assay and direct detection of RSV in NPAs direct smears by IFA are rapid,sensitive method in the diagnosis of RSV infections.

Objective To approach the expressions and the roles of connective tissue growth factor (CTGF) and membrane type 1 matrix metalloproteinases (MT1-MMP) in valve disease with pressure overload which induces extracellular matrix remodeling of left ventricle. MethodsOf 32 patients, 16 cases were pressure overload group (PO), who had the multiple valve disease with predominately aortic valve stenosis, having a ring diameter of aorta valve less than 1.3 cm, cross valve pressure gradient equal or more than 40 mmHg, and valvular regurgitation less than 4.0 cm2; The other 16 cases, as mitral stenosis group (MS), were simple mitral stenosis patients with single valve replacement. Meanwhile, 5 normal individuals served as control, who died from accident. Echocardiography was used to analyze the left ventricular function and detect the hypertrophic level of the left ventricle. Left ventricle muscle samples were obtained during operation. Histological features were studied by Masson staining, and collagenous contents were quantitated with a computer-assisted imaging analysis system. The mRNA expressions of CTGF and MT1-MMP were detected with RT-PCR. ResultsConcentric hypertrophy was observed significant in PO group, but myocardial hypertrophy was not found in MS group. Compare to the MS group and control, PO group had significantly more collagenous contents in left ventricle, thickened vessel wall, and narrow lumen of blood vessel (P0.05), but CTGF mRNA expression was increased in MS group compare to control (P

ObjectiveTo summarize the clinical results of totally thoracoscopic cardiac surgery for mitral valve diseases.MethodsFrom May 2004 to October 2011,272 patients underwent totally thoracoscopic cardiac surgery for mitral valve diseases through three ports.Summarize the indication and contraindication are used and for the operation date.Results There was 1 case in-hospital deaths.The time of operations was 2.1 ～ 3.9 (3.0 ± 1.2 ) h.Time of cardiopulmonary bypass and aortic cross-clamp was 76 ～ 158 (98 ± 22) minites and 38 ～ 78 (52 ± 13 ) minites.Time of mechanical ventilation and intensive care unit stay was 5.8 ～ 34.5 ( 11.2 ± 3.6 ) hours and 14 ～ 67 ( 28.2 ± 7.6 ) hours.The volume of drainage was 20 ～ 1200(370 ± 80) ml.The hospital days were 7 ～ 18 ( 10.2 ± 2.1 ) days.The postoperative complications occurred in 14 cases.ConclusionTotally thoracoscopic cardiac surgery for mitral valve diseases is technically feasible and safe with less drainage and shortened hospital stay.