Objective To study the efficacy of transcatheter arterial chemoembolization (TACE )and continuous portal vein perfusion chemothepary (VPC) on advanced hepatocellular carcinoma cells (HCC). Methods The patients in group A (n=83) received the epirubicin (EPI) 40 mg and the cisplatin (CDDP) 80mg, lipiodol-anticancer drug emulsion was injected into the feeding arteries of tumors followed by embolization with gelatin sponge (GS) particles. Patients in group B (n=59) after receiving the same as the group A then VPC was carried out. Results The response rate ( CR + PR) in group A and B was 45.8% and 61.0%(P

Objective To explore the image quality of gastric cancer improved by dual-energy CT,and to evaluate the clinical utility in staging gastric cancers.Methods 55 patients suspected gastric cancers were included in the study.Patients underwent dual-phasic scans using dual-energy CT with a dual-source scanner.The relationships image quality parameters in 100 kV,120 kV and 70 keV images were evaluated.Image quality parameters comprised mean density,signal-to noise ratio (SNR) and objective noise.The 120 kV and 70 keV images were compared in TNM staging.Results In arterial and portal phase,the attenuation was significantly higher at 70 keV and 100 kV compared to 120 kV images (P＜0.001).In arterial phase,the SNR were higher at 120 kV and 70 keV in comparison to 100 kV(P＜0.01).In portal phase,the SNR were higher at 70 keV in comparison to 120 kV and 100 kV(P＜0.01).Overall accuracy in assessment of tumor invasion of the gastric wall (T stage) was 83.7％ with 70 keV images and 72.1％ with 120 kV images,this difference was not significant (P=0.25);Overall accuracy for lymph node (N) staging was significantly better with 70 keV images(74.4％) than with 120 kV images(62.8％) (P＜0.05).Conclusion The image quality of gastric cancers using dual-energy CT can be improved by optimizing the energy level.The 70 keV images may be used to improve the N-staging accuracy.

Objective To identify risk factors and preventive measures of nosoconial infections in patients with non-Hodgkin lymphoma (NHL). Methods Clinical data of 65 NHL patients admitted from January to December 2007 were retrospectively analyzed. Results According to WHO classification (2001), 58 patients were with B-cell lymphoma, 7 were with T-cell lymphorna. All patients received CHOP regimen as initial chemotherapy and 23 of them were with nosecomial infections. Logistic regression analysis demonstrated that age, length of stay, pathological type, bone marrow involvement, levels of serum lactate dehydrogenase (LDH), beta2-microglobulin and invasive treatment were identified as risk factors of nosocomial infections. Respiratory tract infections and infections with gram-negative microorganisms were the most popular. Conclusion High nosocomial infection rate is found in NHL patients, and control of risk factors may effectively prevent nosocomial infections in NHL patients.

Objective To study the changes and the role of MCP -1,IL -8,VEGF,NO,NOS in the T2DM patients with different types of CHD.Methods According to the result of coronary arteriongraphy and clinical symp-toms,and the diagnostic code of T2DM established by Chinese Medical Association diabetology branch in 2007, 126 patients of T2DMwith CHD were chosen and divided into two groups:ACS +T2DM group (A group,74 cases) and SAP +T2DMgroup (B group,52 cases),in addition,50 healthy people were chosen as control group.The levels of MCP -1,IL -8,VEGF were measured by the method of ELISA.The level of NO was measured by the method of nitrate reductase and NOS activity was measured by the method of spectrophotometer.Then,the results were analyzed. Results The levels of MCP -1 and IL -8 in A group and B group were[(115.98 ±39.57)pg/mL,(98.76 ± 31.55)pg/mL],[(131.22 ±42.83)pg/mL,(115.75 ±40.37)pg/mL],which were all higher than those in group C [(75.63 ±23.69)pg/mL,(68.53 ±37.85)pg/mL,t =4.12,2.26,3.78,2.21,all P <0.05)],but the VEGF [(167.87 ±54.98)pg/mL,(128.38 ±36.99)pg/mL)],NO[(46.89 ±12.92)μmol/L,(51.66 ±12.49)μmol/L)]and NOS [(39.04 ±5.19)U /mL,(40.56 ±7.03)U /mL)]were lower than those in C group [(90.21 ± 32.06)pg/mL,(64.05 ±13.58)μmol/L,(47.82 ±5.93)U /mL;t =3.05,3.17,2.43,2.79,2.49,2.25,all P <0.05].The MCP -1,IL -8 levels in A group were higher than those in B group(t =3.13,2.89,all P <0.05),but the level of VEGF and NO were lower than that in B group(t =3.04,2.95,all P <0.05),NOS in A group was lower than that in B group,but there was no statistically significant difference between the two groups(t =1.06,P >0.05). MCP -1 was positively correlated with Il -8,VEGF (r =0.35,0.33,all P <0.01),and it had negative correlation with NO (r =-0.24,P <0.05).Conclusion Inflammatory factor and oxidative stress both participate in the T2DM with different types of CHD,it relates with the degree of CHD.

Objective To investigate human plasma glycoproteomie changes related to human immunodeficiency virus (HIV) infection,and to identify glycoproteins with potential anti-HIV activity or anti-HIV drug targets. Methods Plasma proteins with lower abundance were enriched through affinity purification to remove albumin and IgG in clinical samples (HIV-positive patient, n= 10, and healthy controls, n= 20). Proteins were separated by two-dimensional electrophoresis (2-DE) and stained by Pro-Q emerald glycoprotein stain kits. The 2-DE image was analyzed by ImageMaster software to find differential glycoproteins. Furthermore, the depleted HIV-positive and healthy control plasma proteins were digested by PNGase F. Glycoproteins were deglycoliszed, separated by 2-DE and analyzed by ImageMaster software. Differential glycoproteins were identified by liquid chromatography combined with high capacity ion trap mass spectrometry (HCT). Results The pretreatment of HIV-positive plasma prior to 2-DE could efficiently remove the high aboundant albumin and IgG in plasma and improve the detection of proteins with low-abundance. High revolution 2-DE gel images of glycoproteins from HIV positive and healthy control plasma samples were obtained. Glycoproteins were successfully deglycolized through PNGase F treatment. Thirteen differential glycoproteins were identified by liquid chromatography combined with mass spectrometry. These proteins included alphalantitrypsin precursor and serine/threonine-protein kinase N1. Conclusions Potential HIV infection related proteins,such as alphal-antitrypsin precursor are successfully identified. Our study may offer some help to understand the molecular mechanism of HIV infection and select new drug targets for preventing HIV infection.

ObjectiveTo find specific biomarkers related to HAART treatment in plasma samples of AIDS patients for clinical therapeautic efficacy evaluation and guidance for the prognosis of HIV treatment.MethodPlasma samples of AIDS patients were collected from Infectious Disease Department 1 of Shanghai Public Health Clinical Center in June of 2008 to February of 2009,including 11 successfully HAART treated cases (HIV load ＞ 50 copies/ml) and 11 unsuccessfully HAART treated cases (HIV load ＜50 copies/ml).Patients' age ranged from 22 to 63.Plasma samples were treated by Bio-rad AurumTM Serum Protein Mini Kit to remove high abundant proteins:albumin and immunoglobulin were removed.The treatedplasmaproteinswereseparatedbytwo-dimensionalelectrophoresisandanalyzedby electrophoretogram using Imagemaster software to find differentially-expressed proteins related to therapeutic efficacy.After digestion by trypsin,the differentially-expressed proteins were identified by online reversed-phasenano-flow liquid chromatography coupled with electrospray ionization ion trap mass spectrometry.ResultsLow abundant proteins were efficiently enriched after the AurumTM Serum Protein Mini Kit treatment.Six differentially-expressed proteins were detected while comparing successfully and unsuccessfully HAART treated group.These proteins were accurately identified by tandem Mass spectrometry (MS), including serum transferrin, serum β-fibrinogen, etc.ConclusionsOur proteomic research revealed that the differentially-expressed proteins such as transferrin,which is related to plasma virus loading in AIDS patients in the process of treatment,might be potential biomarkers evaluating HAART therapeutic efficacy.

OBJECTIVE: To analyze the compliance of sublingual desensitization used in allergic rhinitis patients by telephone follow up, and to discuss the influencing factor associate with medicine pause. METHOD: One hundred and thirty-two patients of allergic rhinitis were randomly divided into two groups, 53 cases was in the control group, 79 cases was in telephone follow up group for a period of 6 months of observation. RESULT: Sublingual desensitization treatment for 6 months, 28/53 cases of control group were compliance, 25/53 cases were loss, and compliance rate was 52.8%; 17/27 cases of follow-up group A were compliance, 10/27 cases were loss, and compliance rate was 63.0%; 21/28 cases of follow-up group B were compliance, 7/28 cases were loss, and compliance rate was 75.0%; 22/24 of follow-up group C were compliance, 2/24 cases were loss, and compliance rate was 91.7% (P < 0.05). Significant difference was found in the 4th month after treatment (P < 0.01). Long-term treatment and cure were the main impact factors for compliance. CONCLUSION Timely telephone follow-up education and guidance to patients could improve compliance of patients with sublingual desensitization.
Administration, Sublingual ; Adolescent ; Antigens, Dermatophagoides ; immunology ; Child ; Child, Preschool ; Desensitization, Immunologic ; methods ; Female ; Follow-Up Studies ; Humans ; Male ; Patient Compliance ; Rhinitis, Allergic, Perennial ; psychology ; therapy ; Telephone

Objective To differentiate colorectal sessile serrated adenoma(SSA)and large hyperplastic polyp(HP)with white light endoscopy and narrow band imaging. Methods Retrospective analysis was performed on the clinical data of 953 patients who underwent endoscopic screening for colorectal cancer at digestive endoscopy center of Peking Union Medical College Hospital from January 2015 to December 2015.Endoscopic features were compared with white light endoscopy and narrow band imaging between SSA and large HP in location, size, Paris classification, surface mucus, NICE classification and varicose microvascular vessel(VMV). Results A total of 28(2.9%)SSAs and 25(2.6%)HPs of diameter not less than 0.5 cm were detected in the total of 953 patients.Statistically significant difference was found in right hemi-colon, diameter not less than 1.0 cm and VMV in two groups(P<0.05). The sensitivities of the above three markers for SSA were 89.3%, 67.9% and 46.4% respectively. The specificities were 64.0%,76.0% and 84.0% respectively. Diagnostic accuracies were 77.4%,71.7% and 64.2% respectively. And the sensitivity, specificity and accuracy of three markers combined(at least two markers)were 75.0%, 88.0% and 81.1%, respectively. Conclusion SSA and large HP could be differentiated with a systemic consideration of lesion location, size, and surface of microvessels by using white light endoscopy and image-enhanced technique.

Objective:To investigate the effect of astragaloside Ⅳ on the apoptosis of thyroid cells in Hashimoto's thyroiditis(HT)rats and Ras homolog gene family member A(RhoA)/Rho-associated coiled-coil containing kinase 2(ROCK2)pathway.Methods:The HT rat model was induced by subcutaneous injection of thyroglobulin combined with high iodine drinking water and randomly divided into model group,astragaloside(80 mg/kg)group,Rhosin(RhoA inhibitor,40 mg/kg)group,astragaloside Ⅳ(80 mg/kg)+ Rhosin(40 mg/kg)group(12 rats in each group),another 12 SD rats were selected and drank water normally and injected the same dose of saline subcutaneously as control group.After the drugs were grouped and processed,the serum anti-thyroglobulin antibody(TGAb),anti-thyroid peroxidase antibody(TPOAb)levels and the inflammatory factors IL-6,IL-17,IL-1β contents were measured by ELISA kits;the pathological changes of thyroid tissue in each group were detected by hematoxylin-eosin(HE)staining;the apopto-sis rate of rat thyroid cells in each group were detected by TUNEL staining;the expressions of RhoA/ROCK2 pathway proteins in thy-roid tissues of rats in each group were detected by Western blot.Results:Compared with the control group,the thyroid follicles in the model group had abnormal structure,some atrophy or disappearance,disordered arrangement,surrounding inflammatory cell infiltra-tion,and obvious pathological damage to the thyroid tissue,the serum TGAb,TPOAb,IL-6,IL-17 and IL-1β levels,thyroid cell apoptosis rate,and thyroid tissue RhoA and ROCK2 protein expression levels were significantly increased(P<0.05);compared with model group,the pathological damage of the thyroid tissue of rats in the drug intervention group were reduced,the serum TGAb,TPOAb,IL-6,IL-17 and IL-1β levels,thyroid cell apoptosis rate,and thyroid tissue RhoA and ROCK2 protein expression levels were decreased(P<0.05);compared with astragaloside Ⅳ group and the Rhosin group respectively,the pathological damage of the thyroid tissue of rats in the astragaloside Ⅳ+Rhosin group were further reduced,the serum TGAb,TPOAb,IL-6,IL-17 and IL-1β levels,thyroid cell apoptosis rate,thyroid tissue RhoA and ROCK2 protein expression levels were decreased(P<0.05).Conclusion:Astragaloside Ⅳ may down-regulate the expression of RhoA/ROCK2 pathway to reduce the inflammatory injury of thyroid tissue,inhib-it thyroid cell apoptosis,and improve the symptoms of HT in rats.

ObjectiveTo establish an High Performance Liquid Chromatography-Inductively Coupled Plasma-Mass Spectrometry （HPLC-ICP-MS） method for determination of six arsenic species in human urine，including arseniccholine （AsC）， arsenobetaine （AsB）， arsenite （As³⁺）， dimethylarsinic acid （DMA⁵⁺）， monomethylarsonic acid （MMA⁵⁺）， and arsenate （As⁵⁺）. MethodsThe pH value of mobile phase and the content of anhydrous ethanol were optimized. Ammonium carbonate （50 mmol·L^-1， containing 2% anhydrous ethanol， pH-8.5） mobile phase was selected. Cl^- interference was eliminated by He mode. The arsenic species in 10-fold diluted human urine samples were separated by an Hamilton PRP X-100 anionic column. A method for the determination of six arsenic species was established. ResultsSix arsenic species could be separated in 13 minutes. The linear correlation coefficients were above 0.999. The limits of detection were 0.10‒0.20 μg·L^-1， and the limits of quantification were 0.30‒0.50 μg·L^-1. Precision experiments showed that RSD ranged from 5.96% to 9.07% when adding concentration 0.20 μg·L^-1； from 2.48% to 6.38% when adding concentration 2.00 μg·L^-1； and from 1.41% to 2.57% when adding concentration 5.00 μg·L^-1. Accuracy test showed that the recoveries were 80%‒125%. ConclusionThe established HPLC-ICP-MS method for determination of six arsenic species in human urine is rapid， accurate and sensitive. It can be applied to the determination of arsenic species in human urine.