0.05), but it was different between 18.6% (22/118) in females and 11.5% (12/104) in males ( P

Objective To investigate the prevalence of mite sensitivity in patients with urticaria or other skin rashes, and to observe the clinical efficacy of a specific immunotherapy(SIT) by the Injectio dermatophagoidei farinae for the patients.Methods In 7-year period(1998-2005), skin prick test(SPT) with a dust mite(Df) allergen was carried out to detect the prevalence of mite sensitivity in OPD patients suffering from skin rashes.Among the patients sensitive to mite with SPT ≥++ response, 3 groups were established.In group A, routine SIT with Injectio dermatophagoidei farinae was conducted.In 9-week increasing dose phase, three stepwise increasing volumes(0.3ml, 0.6 ml and 1.0 ml) each case was injected subcutaneously with mite concentration of 1 ∶ 100 000(w/v) , 1 ∶ 10 000(w/v) or 1 ∶ 5 000(w/v) respectively once a week, followed by a maintenance dose phase for an injection with 1 ∶ 5 000(w/v) 1.0 ml/wk for 6 weeks.Group B received rush SIT with mite injections.A total of 15 injections in a course of therapy with same concentration and volume was given as those for the routine ones except shortened intervals, namely, 9 initial injections completed in 3 days by three injections of each concentration per day with two 30 min intervals, maintenancedoses were then provided in 6 days with 1 ∶ 5 000(w/v) 1.0 ml/d.Thereafter, both groups A and B were maintained for one year with a dose of 1 ∶ 5 000(w/v) 1.0 ml every 2 wk.Group C received antihistamine treatment as control, the patients received daily oral Ebastine 10 mg in the morning and Cetirizine dihydrochloride 10 mg in the evening for one week course and pro re nata later.Levels of serum tIgE and serum mite sIgE were detected by ELISA in 20 urticaria cases before and after one year mite SIT.Results Altogether, 2 685 cases with skin rashes were detected by Df allergen SPT.The prevalence of urticaria cases sensitive to mite was 70.3%(1 754/2 496), which was higher than that of eczema 63.5%(54/85) and anaphylactoid purpura 60.6%(63/104)(P

Objective To investigate the correlation between serum lipoprotein-associated phospholipase A2 (LP-PLA2) and homocysteine (Hcy) level change with cerebral infarction,and clinical value of combined detection of serum LP-PLA2,Hcy and blood lipid level in the diagnosis and differentiation diagnosis of cerebral infarction.Methods The serum lipoprotein-associated phospholipase A2,homocysteine and blood lipid in sixty-five cases of cerebral infarction(cerebral infarction group) and contemporaneous 64 healthy persons qualified in physical examination(health control group) were selected as the research subjects.The levels of serum LP-PLA2,TG,HDL,LDL,CHO and Hcy were detected.The differences were compared among various groups.Results The TG and LDL levels had no statistically significant difference between the health control group and cerebral infarction group(P>0.05),but the LP-PLA2 and Hcy levels in the cerebral infarction group were higher than those in the health control group(P<0.01),while serum HDL and CHO levels were lower than those in the health control group(P<0.01).Serum High Hcy and LP-PLA2 levels were the independent risk factors for cerebral infarction,however,high HDL was a protective factor for cerebral infarction.In the combined detection,the combined detection of LP-PLA2 and Hcy was superior to single index detection and other combined detection mode.Conclusion Serum LP-PLA2 and Hcy levels in the patients with cerebral infarction are significantly higher than those in the health control group,indicating that it may be involved in the occurrence of cerebral infarction,and may become an early biological marker for predicting cerebral infarction occurrence.The combined detection of serum LP-PLA2 and Hcy has highly clinical value in the diagnosis of cerebral infarction.

Objective To investigate the infection status of hepatitis B virus(HBV) and hepatitis C virus(HCV) in healthy adult in Xi′an ,in order to provide references for hepatitis prevention and health education .Methods A total of 1 052 healthy adults from 10 communities in Xi′an were collected by using multistage stratified random sampling method .HBV serum markers and anti‐HCV antibody were detected ,and characteristics of distribution of HBV and HCV infection were analysed .Results A total of 37 adults were observed with positive hepatitis B surface antigen(HBsAg) ,the total positive rate was 3 .52% ,and the positive rate of male and female was 4 .08% and 3 .07% respectively ,no statistically significant difference was found between male and female(P>0 .05) .Apart from male adults aged 30 - < 40 and 40 - < 50 ,there were no statistically significant differences between each age groups in male and female ,and between female and male in the same age groups(P> 0 .05) .A total of 31 adults were observed with HBsAg ,hepatitis B e antibody (HBeAg)and hepatitis B core antibody(HBcAb) positive ,the positive rate was 2 .95% .The positive rate of hepatitis B surface antibody(HBsAb) was 54 .18% .Serological patterns between different gender had no statistically signifi‐cant differences(P>0 .05) .A total of 9 adults(0 .86% ) were observed with positive anti‐HCV antibody ,and the positive rate of male and female was 0 .64% and 1 .02% respectively ,no statistically significant difference was found between male and female(P>0 .05) .Conclusion Healthy adults in Xi′an have relatively low infection rates of HBV and HCV ,while for the control of hepatitis B and hepatitis C ,further strengthening the health education ,improving awareness of prevention and routine monitoring infectious dis‐eases and vaccination may still be necessary .

Objective To investigate the serum levels of tumor markers CEA,CA724,PGⅠ,PGⅡ,PGI/PGII and SF in gas-tric cancer.Methods The serum levels of CEA,CA724,PGⅠ,PGⅡ,PGI/PGII and SF were detected in 46 healthy con-trols,45 atrophic gastritis patients and 39 gastric cancer patients.Serum levels of CEA,CA724 were measured by ELC meth-od,PGⅠ,PGⅡ by time resolved fluorescence immunoassay (TRFIA)and SF by immunoturbidimetry(ITM).Results ①Compared to the healthy controls,the statistical contrast of serum levels of CEA,CA724,PGⅠ,PGⅡ and PGI/PGII except SF was significant in gastric cancer patients(P<0.05),only PGⅠ,PGⅡ,SF had significant difference in atrophic gastritis patients (P<0.05).Compared to atrophic gastritis patients,the serum levels of CEA,CA724 were significantly higher,but PGⅠwas lower in gastric cancer patients(P<0.05).②When CEA,CA724,PGⅠ,PGⅡ,PGI/PGII and SF were used to di-agnose gastric cancer individually,the sequence of the area under ROC curve was CEA,SF,CA724,PGI/PGII,PGⅡ and PGⅠ.Only the areas of PGⅠ,PGⅡunder ROC curve had significant statistical difference (P<0.05).③The sensitivity,speci-ficity,PPV and NPV were different when these indexes were used to diagnize gastric cancer individually or incorporatedly. Conclusion The serum levels of tumor markers CEA,CA724,PGⅠ,PGⅡ,PGI/PGII and SF had important reference value for the diagnosis of gastric cancer although the diagnostic value was different individually or incorporatedly;the content of serum PG and the ratio of PGI/PGII were closely related to the gastric mucosa.

Background/Aims: This study aimed to investigate the biological function and regulatory mechanism of TCN1 in colorectal cancer (CRC). Methods: We studied the biological function of TCN1 by performing gain-of-function and loss-offunction analyses in HCT116 cell lines; examined the effects of TCN1 on the proliferation, apoptosis, and invasion of CRC cells; and determined potential molecular mechanisms using HCT116 and SW480 CRC lines and mouse xenotransplantation models. Tumor xenograft and colonization assays were performed to detect the tumorigenicity and metastatic foci of cells in vivo. Results: TCN1 knockdown attenuated CRC cell proliferation and invasion and promoted cell apoptosis. Overexpression of TCN1 yielded the opposite effects. In addition, TCN1-knockdown HCT116 cells failed to form metastatic foci in the peritoneum after intravenous injection. Molecular mechanism analyses showed that TCN1 interacted with integrin subunit β4 (ITGB4) to positively regulate the expression of ITGB4. TCN1 knockdown promoted the degradation of ITGB4 and increased the instability of ITGB4 and filamin A. Downregulation of ITGB4 at the protein level resulted in the disassociation of the ITGB4/plectin complex, leading to cytoskeletal damage. Conclusions TCN1 might play an oncogenic role in CRC by regulating the ITGB4 signaling pathway.

Objective To investigate the correction between the levels of vascular endothelial growth factor (VEGF), serum amyloid A (SAA), hypersensitive C-reactive protein (hs-CRP) and acute cerebral infarction (ACI), and to provide the basis for the diagnosis and treatment of ACI.Methods A total of 76patients with ACI in the hospital from August to October 2017were selected as ACI group.In addition, 32healthy subjects underwent physical examination in the same period in this hospital were selected as negative control group (NC group).The levels of SAA and hs-CRP were detected by nephelometry, while the level of VEGF was measured by enzyme-linked immunosorbent assay (ELISA).The differences of detection indexes between two groups were compared, and the diagnostic value of each index and the combined test were evaluated with the Youden index.Results The levels of SAA, hs-CRP and VEGF in ACI group, were significantly higher than those of NC group (P＜0.01).The levels of VEGF was positively correlated with SAA and hs-CRP (r=0.434and0.631, P=0.000and 0.000).The optimal diagnostic critical points of VEGF, SAA and hs-CRP in the diagnosis of ACI were 161.93pg/mL, 3.81mg/L and 4.63mg/L, and the sensitivities were 93.55％, 65.91％and64.44％, the specificities were 60.00％, 93.75％and 90.32％, respectively.Combined detection with hs-CRP and VEGF was superior to single index detection and other joint detection.The sensitivity, specificity and Youden index of combined detection with hs-CRP and VEGF were 96.67％, 95.65％and 0.92respectively.Conclusion The levels of VEGF, SAA and hs-CRP increase in patients with ACI, and they play important roles in the diagnosis of ACI.VEGF are positively related to SAA and hs-CRP, and there may be an synergistic effect exist.VEGF may be involved in the pathological process of cerebral infarction.The combined detection of hs-CRP and VEGF is of high clinical value in the diagnosis of cerebral infarction.