Objective　Vascular endothelial growth factor (VEGF) can cause potent vascular permeation. More and more findings have demonstrated that VEGF is increased in the diabetic retinopathy. The objective of this study is to investigate whether blocking the VEGF using soluble-Flt can suppress the retinal blood vessel leakage.Methods　Sprague-Dawley rats weighing approximately 200 grams were made diabetic by injection of streptozotocin (STZ). After the animals were diabetic for 1 week, they were intravenously injected with either PBS+50g*L-1Glycerol, interleukin-6 receptor monoclonal antibody (IL-6R), or soluble-Flt. On the eighth day, Evans blue method was used to check the leakage. Animals treated with citrate sodium buffer and STZ treated non-diabetic animals served as the control group. Results　There was no significant difference of the retinal blood vessel leakage between the two control groups (P>0.05). The retinal blood vessel leakage of 8 day diabetic animals was significantly higher than that of total control groups (P<0.05). The leakage of diabetic animals treated with PBS+Glycerol or IL-6R remains the same (P>0.05). But, the leakage of 25 mg*kg-1 soluble-Flt treated diabetic animals was remarkably lower than that before treatment, PBS+Glycerol treated or IL-6R treated diabetic animals (P<0.000 1), and there was no difference compared with total non-diabetic control groups (P>0.05). Conclusion　This study shows that the VEGF plays a very important role in the onset of the diabetic retinopathy and suggests by suppressing the action of VEGF, the retinal blood vessel leakage at the early stage of diabetic retinopathy could be reduced.

Objective To verify the effect of Evans blue dye on determining the retina blood vessel leakage. Methods Male Sprague Dawley rats were used in this study. The VEGF induced retinal blood vessel leakage was checked with Evans blue dye. Then the blood retina barrier breakdown of 1 week diabe tic animals was quantified with Evans blue. The dye was extracted from retina by formamide and the extraction was checked with spectrophotometer. Evans blue leakage was normalized against wet or dry retina weight. Results The retinal Evans blue content of eyes treated with VEGF was remarkably higher than that of the controls (n=17, P

Objective To investigate the clinical and pathological characteristics as well as the surgical treatment of perforated gastric carcinoma (PGC). Methods The clinical and pathological data, surgical treatment and survival time of 48 patients with PGC were retrospectively analyzed. Results The mean age was 58 years in the 48 patients with PGC. There were 3 tumors in stage I, 11 in stage II, 21 in stage III , and 13 in stage IV. Emergency gastrectomy was done in 29 patients, with the mortality was 6.9%. Six patients underwent local repair at first, gastrectomy was done 3 weeks later without postoperative death. Perforation repair with or without gastroenterostomy was performed in 13 patients, with the mortality was 23.1% .The median survival time in gastrectomy group was 28 months (ranged 13 to 72 months) and in repair group was 7 months (ranged 3 to 10 months). Conclusions Emergency gastrectomy is the choice of treatment for PGC. If the conditions is not suitable for emergent gastrectomy ,staging operation should be adoptted to reduce operative mortality.

Objective To investigate the preventive and therapeutic effects of Ginger extraction on heart failure in rabbits.Methods Twenty-seven New Zealand pure-breed rabbits were randomized into 3 groups:group A,group B and group C.Group A was orally administrated with 2 %Ginger extraction 3 days before and after modeling;group B was orally administrated with purified water 3 days before modeling and with 2 %Ginger extraction after modeling;group C was orally administrated with purified water 3 days before and after the establishment.The differences of modeling time and dosage of pentobarbital sodium between groups were compared;hemodynamics parameters before and after administration were detected.Results (1)The modeling time and dosage of Pentobarbital Sodium were remarkably increased in group A,differences being significant compared other 2 groups(P

Objective To investigate the effects of Rhizoma Zingiberis Extract (RZE) on the cardiac functions of rabbits with heart failure. Methods Forty pure-bred New-Zealand rabbits were randomly allocated to 4 groups: control group, low-dosage RZE group, moderate-dosage RZE group and high-dosage RZE group. The rabbit model of heart failure was established by intravenous dripping of 20 g/L pentobarbital sodium. Oral tube perfusion of RZE was given after model establishment.The hemodynamic changes were observed before and after the modeling and 5,10,15,20,30,45,60,90,120,150 minutes after treatment by a RM-6000 4-graph physiological monitor. Results After treatment, LVSP, lv?dp/dtmax,lv +dp/dtmax,lv-dp/dtmax showed an ascending tend in all the groups, particularly in RZE groups; the differences between the control group and RZE groups were significant 30 minutes after treatment (P

Objective:To investigate the effect of IL-35 on inflammatory response and T cell response in allergic rhinitis.Methods: 37 patients(observation group) with allergic rhinitis and 35 healthy volunteers(control group) after allergen detection of allergic rhinitisin in our hospital from Jan 2012 to Jan 2016 were selected as study subjects.The peripheral blood of observation group and control group were collected,and the serum levels of IL-35 were detected by ELISA.The animal model of allergic rhinitis in mice was established,the peripheral blood of mice was collected,and the serum level of IL-35 and IgE were detected by ELISA.The eosinophils that infiltrated in nasal mucosa were detected after tissue biopsy in mice.The mouse spleen cells were isolated and the ovalbumin antigen was added in the culture medium,IL-35 was or was not added into the culture medium,the ovalbumin specific T cell responses was detected.The cytokines IL-2,IL-4,IL-5,IL-10,IL-13,IL-17,IL-23,IL-27 and TNF-α in culture supernatant of ovalbumin specific T cells were detected by ELISA.The expression of IL-2,IL-4,IL-5,IL-10,IL-13,IL-17,IL-23,IL-27 and TNF-α in ovalbumin specific T cells were detected by Real-time PCR.The activation of JNK,Erk1/2 and p38 signal pathway in ovalbumin specific T cells were detected by Western blot.Results: The serum level of IL-35 in observation group was significantly lower than control group(P<0.05).The results showed that the number of eosinophils which infiltrated in AR mice nasal mucosa was significantly higher than normal mice(P<0.05),while the serum level of IL-35 in AR mice was significantly lower than normal mice(P<0.05).Ovalbumin specific T cell reactivity assay showed that IL-35 could significantly inhibit the T cell response.ELISA and Real-time PCR results showed that IL-35 could significantly down regulate the expression of IL-4,IL-5,IL-13,IL-17,IL-23 and TNF-α,and up regulate the expression of IL-2,IL-10 and IL-27.The Western blot results showed that IL-35 can inhibit the activation of JNK,Erk1/2 and p38 signal pathway of ovalbumin specific T in cells.Conclusion: IL-35 can regulate the expression of inflammatory cytokines in inflammatory response and inhibit T cell response,thus reducing allergic rhinitis,the mechanism may be through regulation of JNK,Erk1/2 and p38 signal pathway activation.

Objective To explore a more effective way to enhance the clinical efficacy of cluster immunotherapy for perennial allergic rhinitis. Methods A total of 60 perennial allergic rhinitis patients were evenly randomized into treatment goup and control group. The two groups were given cluster immunotherapy, and the treatment group was given daily vesiculating moxibustion additionally . Before and after treatment, the scores of traditional Chinese medical constitution and the rhinitis quality of life ( QOL) were observed, and one year after treatment, the therapeutic effect and safety were evaluated. Results ( 1) One year after treatment, the treatment group showed better total clinical efficiency than the control group ( 96.67% vs 80.00%, P<0.05). ( 2) After treatment, the average scores of Qi deficiency constitution, yang deficiency constitution and special constitution were significantly lower than those before treatment in the treatment group ( P<0.01). The improvement of Qi deficiency constitution and yang deficiency constitution in the treatment group was superior to that in the control group ( P<0.05). ( 3) The total QOL scores and the scores of each dimension of QOL scale were improved in both groups, and the differences were significant except for the emotion dimension ( P<0.01). Insignificant differences were shown between the two groups after treatment ( P>0.05). ( 4) Two cases had grade 1 general adverse reaction and 5 cases had local adverse reaction during cluster immunotherapy. During vesiculating moxibustion, 3 cases had blistering and the blistering disappeared after symptomatic treatment. Conclusion Daily vesiculating moxibustion combined with cluster immunity therapy is effective for the treatment of allergic rhinitis, showing good effect on improving Qi deficiency constitution, yang deficiency constitution and special constitution as well as the quality of life of the patients.

A reporter system for φC31 integrase was developed in NIH3T3 cells. The reporter plasmid coding green fluorescent protein (GFP) coupled with red fluorescent protein (RFP) was eo-transfected with the plasmid coding φC31 integrase, to show the activity of integrase in the cells. Fluorescence activated cell sorter (FACS) was used to measure the proportion of the cells containing red and green fluorescence. The increment of green cells was positively related to the increase in the transfection with plasmid coding φC31 integrase. Approximately 90% of green cells were observed under a ratio of [plasmid-φC31-integrase]/[reporter plasmid] at 10 : 1. This suggests that the φC31 integrase reporter system provides a probe for the function of φC31 integrase in cells.

OBJECTIVE To evaluate the value of Epworth sleepiness scale(ESS) combined with home-based portable monitoring(PM) in the diagnosis of patients with obstructive sleep apnea syndrome(OSAS). METHODS Adult OSAS patients who visited Beijing Tongren Hospital and complained of snoring were included in this study. The overnight polysomnography(PSG) and the ESS were completed at the sleep center and the portable multi-channel monitoring was completed within one week. Subjects were divided into two groups according to their apnea hypopnea index(AHI) of PSG: simple snoring or mild OSAS group(AHI<15/h) and moderate-severe group(AHI≥15/h). The ESS score, respiratory disturbance index(RDI) of PM and other parameters were compared and the correlation of AHI with ESS scores, RDI were analyzed. The sensitivity and specificity of ESS score≥9 points, RDI≥15/h in the diagnosis of moderate-severe OSAS were calculated. RESULTS A total of 51 subjects were included in this study with 42 males(82.4％) and 9 females(17.6％). Mean age was(43.8±10.8) years, and the mean body mass index was(27.9±4.5)kg/m2; ESS scored 1-24 points and mean(8.6±5.0) points, 18 cases with ESS score ≥9 points; AHI ranged between 2.5 and 99.8/h with a mean of(37.4±29.8)/h. There were 19(37.3％) and 32(62.7％) patients in snoring-mild group and moderate-severe group, respectively. There was significant difference for ESS scores between the two groups(9.9±5.1 vs 6.6±4.2 points, P<0.05),RDI in moderate-severe OSAS group was significantly higher than that in snoring-mild group[(49.4±23.1)/h vs (6.8±4.5)/h, P<0.001)]. There was a positive correlation between the ESS score and PSG derived AHI(r =0.435, P =0.002); the PM derived RDI were significantly correlated with PSG derived AHI in snoring-mild group(r =0.706, P=0.001), moderate-severe group(r =0.873, P=0.000) and patients with ESS score ≥9 points(r =0.967, P=0.000). At a PSG threshold AHI=15/h, the sensitivity and specificity for ESS score ≥9 points were 45.2％ and 78.9％; the PM derived RDI≥15/h had a sensitivity and specificity of 84.4％ and 84.2％, respectively; the sensitivity and specificity for each individual screening tool along with the combination of ESS and PM were 100.0％ and 100.0％. CONCLUSION ESS combined with PM diagnostic method is a valuable measure for the diagnosis of moderate and severe OSAS patients.

Objective To explore the feasibility of detecting of Y-STR of fetal DNA in m aternal plasm a using Ion Torrent PGMTM System . Methods A total of 16 fetal DNA sam ples from m aternal plasm as (8 cases from 38 w eeks gestational age and 8 ones from 12 w eeks) w ere prepared and a m ultiplex assay w ith 7 STR loci (DYS390,DYS391,DYS393,DYS438,DYS437,DYS456,DYS635) w as designed for m ul-tiplex-PC R am plification. U sing Ion Torrent PGMTM System , the results of Y-STR sequences and capillary electrophoresis w ere obtained and com pared. Results Y-STR specific alleles w ere detected in the m ater-nal plasm a of all the pregnant w om en having m ale babies of second and third trim ester, w hich w ere higher than that detected by capillary electrophoresis. C onsistent Y-STR genotypes w ere observed betw een fetal DNA from m aternal plasm a and genom ic DNA from the new born babies. Conclusion B ased on Ion Torrent PGMTM System , the prenatal Y-STR detection m ethod m ay provide a high-sensitive and high-throughput choice for prenatal STR detection in forensic testing.