ObjectiveTo investigate the association between the FCRL5 gene (rs6427384 and rs12036228) single nucleotide polymorphism(SNP) and patients with ankylosing spondylitis (AS). Methods SNP of FCRL5 gene (rs6427384 and rs12036228) was analyzed in 169 patients with AS and 184 healthy controls by ligase detection reaction based on high temperature(LDR)-PCR. The distribution of FCRL5 genotypes and allele frequencies were detected between the two groups. Chi-square test, one-way ANOVA were used for statistical analysis. ResultsSignificant differences were found in the distribution of allele frequencies of FCRL5 gene between AS patients and health controls(P＜0.05). The C allele frequencies of FCRL5 gene at positions of rs6427384 and rs12036228 were 17.3％, 92.3％ and 25.0％, 87.2％ respectively in the AS group and the control group. And the T allele frequencies of rs6427384 and rs12036228 were 82.7％, 7.7％ and 75.0％, 12.8％ in the AS group and the control group. The percentages of CC, CT and TT genotype(rs6427384) were 3.7％, 27.2％, and 69.1％ in the AS group, which were significantly different from those of the control group(3.9％, 42.2％ and 53.9％ ) (x2=8.7637, P=0.0125 ). Staging of sacroiliitis in X ray were significantly different during AS patients whose genotype represented as CC, CT and TT (rs6427384)(x2=34.159, P=0.0001 ). Incidences of the initial symptoms (low back pain or inflammation of periphery joint)in the AS group were obviously differed among patients with different genotypes (rs6427384) (x2=7.254, P=0.027), so did the mean duration of morning stiffness (F=4.159, P=0.018) and the average scores of BASDAI (F=4.461, P=0.014). Incidences of the initial symptoms in the AS group were also conspicuously different between the AS patients with different genotypes (rs 12036228 ) (x2=6.640, P=0.036 ). ConclusionOur study suggests that the SNP(rs6427384 and rs12036228) of FCRL5 may be a susceptibility factor for AS in Anhui Han population and the genotype may influence the clinical phenotype of AS.

Objective To improve the rheumatologists'understanding of pulmonary artery hypertension (PAH) of adult onset Still's disease (AOSD).Methods Three cases of (AOSD) with (PAH) were reported and the related literatures were reviewed.Results All patients were female.The average age was 29 years old.As the cases showed,the clinical manifestations of AOSD were all before the appearance of PAH symptoms and the interval could be 5 months to 9 years.From the ultrasonic cardiogram estimation,the PASP of these patients was (80±21) mm Hg (1 mm Hg=0.133 kPa) on average.The common characteristics included the severity of AOSD,recurrence after high dose of corticosteroid and various immunosuppressive agents aggressively.In addition,PAH was developed rapidly,and we found that patients were die 1 year later after disease onset.Studies showed that all of their death were related to circulation failure caused by right heart failure combined with obstructive shock.And infection was considered as an important predisposing factor of the obstructive shock.Conclusion From the findings above,we can conclude that ASOD complicated with PAH is rare,and it always develops rapidly.Furthermore,the state of disease is very serious and at the same time,the prognosis remains poor.Rheumatologists should aware this rare condition.

ObjectiveTo observe the effect of Xuebijing injection pretreatment on systemic inflammatory response induced by severe heat-stroke, and to investigate the mechanism of alleviation of intestinal injury in rats. Methods Thirty-six healthy adult male Wistar rats with grade SPF were randomly assigned into three groups with randomized number method, namely sham group, severe heat-stroke model group, and Xuebijing pretreatment group (XBJ group), with 12 rats in each group. The animals were placed in a pre-warm chamber [temperature (40±2)℃, humidity (65±5)%] in order to induce typical heat-stroke. The duration of heat-stress was 60 minutes, while the animals in sham group were exposed to ambient temperature of 25℃. Arterial blood samples were collected at the beginning and the end of heat-stress, the concentrations of tumor necrosis factor-α(TNF-α), interleukins (IL-1β, IL-6), and lipopolysaccharide (LPS) in peripheral blood were determined by enzyme linked immunosorbent assay (ELISA). The intestinal tissues were harvested after heat-stress, and the pathological changes in intestine tissues were observed after hematoxylin-eosin (HE) staining and under optical microscope. The pathological injury scores were calculated. Immunohistochemistry was performed to determine inducible nitric oxide synthase (iNOS) expression in intestinal tissue. Apoptosis was determined by terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) staining. Western Blot was used to measure the tight junction protein occludin expression.Results The concentrations of TNF-α, IL-1β, IL-6 and LPS in blood of the rats after heat-stress in model group were significantly higher than those of sham group [TNF-α (μg/L): 443.00±110.10 vs. 98.36±44.61, IL-1β (μg/L): 436.37±163.64 vs. 64.24±16.15, IL-6 (μg/L): 342.70±92.42 vs. 54.40±13.22, LPS (μg/L): 0.68±0.22 vs. 0.09±0.02, allP< 0.01], but the levels of these parameters in XBJ group were significantly lower than those of model group [TNF-α (μg/L):340.45±68.57 vs. 443.00±110.10, IL-1β (μg/L): 191.33±82.78 vs. 436.37±163.64, IL-6 (μg/L): 192.21±37.89 vs. 342.70±92.42, LPS (μg/L): 0.43±0.17 vs. 0.68±0.22, allP< 0.01]. Infiltration of inflammatory cells, necrosis and hemorrhage in intestinal mucosa were found in the intestine of heat-stroke animals in model group. The pathological lesions in XBJ group were milder than those of model group, with a decreased pathological injury score compared with model group (2.10±1.15 vs. 3.20±0.67,P< 0.01). The expression of iNOS and apoptosis of cells in intestinal tissue in model group were increased compared with that of sham group, but they were significantly less marked in XBJ group compared with model group [iNOS (adjustedA value): 0.32±0.15 vs. 0.74±0.17, apoptotic index: 0.23±0.08 vs. 0.56±0.07, bothP< 0.01]. The order of expression for occludin protein from high to low was sham group, XBJ group and model group (A value was 0.96±0.25, 0.62±0.20, 0.33±0.11, respectively). Furthermore, there was significant difference in the expression of occludin protein between model group and both XBJ group and sham group (bothP<0.01).Conclusions Xuebijing injection alleviates inflammation and endotoxemia produced by severe heat-stroke in rats. The mechanism may be related to amelioration of oxidative injury, apoptosis, and dysfunction of tight junction protein occludin expression.

Objective To investigate the value of tumor necrosis factor (TNF)-α receptor gene,TNFRSF1A+36A/G(rs767455) and-383A/C(rs2234649),TNFRSF1B+196T/G(rs1061622) single nucleotide polymorphism (SNP) for the susceptibility to ankylosing spondylitis (AS) and the relationship between SNP and AS.T test,Chi-square test,and ANOVA were used for statististical analysis.Methods Two hundred and fifteen patients who had definite diagnosis of AS and 216 healthy blood donors were involved in this study.SNPs of TNF-α receptor gene:TNFRSF1A +36A/G(rs767455),-383A/C(rs2234649) and TNFRSF1B+196T/G (rs1061622) were detected with the ligase detection reaction (LDR-PCR) method.Results ① Distribution frequencies of A alleles(86.8％,91.5％) and G alleles (13.2％,8.5％) of TNFRSF1A(rs767455) in AS and controls were significantly different with each other (x2=4.627,P=0.0315),while the distribution frequency in group of homozygotes (AA or GG genotype) in AS and controls were 74.6％(150/201) and 83.9％(177/211),the frequencies in group of heterozygotes (AG) were 25.4％ (51/201) and 16.1％(34/211)(x2=5.390,P=0.020).Frequency of alleles and the genotypes of TNFRSF1A (rs2234649) and TNFRSF1B (rs1061622) between AS and control group were similar(P＞0.05).It also demonstrated that TNF-αreceptor gene haplotype (rs1061622T-rs2234649A-rs767455G) carriers apparently increased the susceptibility to AS (11.5％ vs 6.9％)(OR:1.753,95％CI:1.078～2.852,P=0.022).② Analysis of variance found that the duration of morning stiffness (F=3.168,P=0.044) and peripheral joint tenderness counts (F=4.598,P=0.011) among the three genotype groups of TNFRSF1B (rs1061622) in patient with AS were evidently differed with each other.Bath AS functional index (BASFI) among different genotype groups of TNFRSF1A (rs2234649) in AS had remarkable diversity (F=5.783,P=0.004).None of above indicators among groups of different genotypes of TNFRSF1A (rs767455) in AS were uniform (P＞0.05).③ Forty-four patients were treated with TNF-α antagonist (entanercept),25 mg,subcutaneous injection,twice weekly for 3 months,then followed with Sulfaslazine (SASP) 2.0 g/d and Celecoxib 0.4 g/d for another 9 months.ASAS20 was the primary endpoint for the evaluation of therapeutic effect at the visit of 3 month and 12 month.No associations were found between SNP and short or long term outcome of treatment with TNF-α antagonist in AS (P＞0.05).Conclusion TNFRSF1A (rs767455) SNP correlates with susceptibility to AS in Anhui Han local patients.Carriers of TNF-α receptor gene haplotype (rs1061622T-rs2234649A-rs767455G) may increase the susceptibility to AS.SNP of TNFRSF1B (rs1061622) is associated with disease activity in AS,while SNP of TNFRSF1A(rs2234649)relates to functional index of the disease.There is no association between SNP of TNFRSF1A / TNFRSF1B and short or long term outcome of treatment with TNF-α antagonist in AS.

In this paper, Gaussian pixelate Chinese character processing software is designed, and HMD is used to realize the recognition experiment for pixelate Chinese characters based on simulated prosthetic vision. The structure of recognition system, software design and the experiment for determining Gaussian width (sigma) are presented. It is shown that when sigma is 0.235, the recognition program is the best.
Equipment Design ; Image Processing, Computer-Assisted ; Language ; Prostheses and Implants ; Software Design ; Visual Perception

Objective To investigate the role of basophils in the imbalance of Th 1/Th2 response in mouse models of collagen-induced arthritis(CIA).Methods 4-6-weeks old C57/BL6 mice were immunized with collagen at multiple points on the back and foot twice (0 and 3 weeks) to establish a mouse model of collagen-induced arthritis.Blood samples were collected before the first immunization and 1, 3, 6 and 9 weeks after immunization , and cells from lymph nodes were collected.Flow cytometry and ELISA were employed to detect the levels of basophils and IL-4, and the joint swelling was scored.Results Mouse model of CIA was successful established .The ratio of IL-4/IFN-γof the CIA group was significantly lower than that in the mice before CIA modeling and the control group , indicating a Th2-dominant response .At the same time, the peripheral basophils counting and percentage of IL-4 positive basophils of the CIA group were significantly higher than those of the control group .While, the IL-4/IFN-γratio of the CIA group was significantly higher than that of the control group , indicating a Th1-dominant response .The peripheral basophils counting of the CIA group was slightly lower than that of the control group .Conclusion Basophils may participate in the development of CIA in mouse models through affecting the imbalance of Th 1/Th2 response.

Objective To explore the difference in Z-score reference range for aorta measurements, and pulmonary artery(PA)/aortic(AO)valve annular diameter ratio(PA/AO ratio)between normal and aortic stenosis(AS)fetuses and to evaluate the diagnostic value of Z-score of aorta in fetuses with AS. Methods A retrospective cross-sectional study of fetal color Doppler echocardiograms were undertook from 300 singleton normal fetuses with gestational age ranged from 16 to 40 weeks.Standardized fetal echocardiographic measurements included AO valve annular diameter and PA valve annular diameter at end-systole,and PA/AO ratio were obtained.With statistical analysis,best model was established for predicting AO and PA using biparietal diameter (BPD)and femoral length (FL)as independent variables.The correlations between standard deviation (SD)and two independent variables (BPD,FL)were analyzed,and the AO Z-score and PA Z-score of normal fetuses were calculated.One hundred and six singleton fetuses with AS were studied whose gestational age ranged from 1 5 to 40 weeks.The AO Z-score and PA Z-score of AS fetuses obtained by using above regression equation and PA/AO ratio were subsequently calculated.The AO and PA Z-scores and PA/AO ratio between normal fetuses and AS fetuses were compared.And the detection rate of AS according to AO Z-score,PA/AO ratio and AO percentile range were assessed.Results Compared with normal fetuses,the Z-score of AO and the PA/AO ratio in AS fetuses were statistically different (P <0.01).While there was no statistical difference of Z-score of PA between two groups (P >0.05).AO Z-score in 96.2% of AS fetuses were found < -3,PA/AO ratio in 95.3% of AS fetuses were found outside 95% CI.The method using AO Z-score had the highest detection rate of AS,the positive predictive value was up to 89.5%,the negative predictive value was up to 98.6%,the sensitivity,specificity and Youden index were 96.2%,96%,and 0.9223,respectively.PA/AO ratio had good but slightly lower diagnostic accuracy than AO Z-score,while AO percentile range performed poor.Conclusions Fetuses whose AO Z-score are outside ±3 and the PA/AO ratio is greater than 1 .4 at the same time are more likely to suffured from AS.Quantification of AO Z-score has important clinical value in the diagnosis of AS,and is more accurate than the percentile range in quantitative assessment of congenital heart growth and development of the fetal pathology of AS.

Objective To explore the causes of per-hospitalization high inpatient expenditure of a tertiary hospital in 2015,by analyzing the influencing factors.Methods We retrospectively studied 1 282 inpatient cases who cost more than 100 000 yuan per case at a tertiary hospital in 2015,analyzing statistically major influencing factors of such expenditure in variance analysis and multiple stepwise regression analysis.Results The average days of stay of these cases were 27.6 days,and the average medical cost of those cases was 149 153 yuan per person.Costs for medicines and material made up a large proportion of medical costs,respectively accounting for 33.38% and 31.98% of the total.The days of stay,prognosis of the patient,complications as well as hospital infection,surgeries,gender of the patients constituted major factors on inpatient medical expenditure.Conclusions Reducing the average days of stay,guiding reasonable applications of drugs and medical materials,strengthening management on operations and controlling excessive medical services are effective approaches to reducing excessive growth of medical costs.

The differential expression of genes in HepG2 cells caused by UC001kfo RNAi was investigated using RNA-seq.HepG2 cells were infected by Lenti-shUC001kfo lentivirus particles.The expression of UC001kfo mRNA in the HepG2-shUC001kfo cell line was detected by real-time PCR.RNA-seq technology was used to identify the difference in the expression of genes regulated by lncRNA UC001kfo in the HepG2 cell line.Gene ontology and signaling pathway analysis were performed to reveal the biological functions of the genes encoding of significantly different mRNAs.The results showed that mRNAs were differentially expressed between the HepG2-shUC001kfo cell line and the HepG2 cell line.The UC001kfo mRNA was significantly down-regulated in the stable cell line HepG2-shUC001kfo (P＜0.001).Additionally,we found 19 signaling pathways or functional classifications encompassing 30 genes that played a role in cancer characteristics,cell adhesion,invasion and migration.The results also showed that the expression of many genes associated with cancer cell invasion and metastasis was decreased with the down-regulation of the lncRNA UC001kfo.LncRNA UC001kfo may play a role in regulating cancer cell invasion and metastasis.It was suggested that mRNAs were differentially expressed in the HepG2 cell line after the down-regulation of lncRNA-UC001kfo.Some took part in the extracellular matrix,cell adhesion,motility,growth,and localization.The genes encoding of differentially expressed mRNAs may participate in cell invasion and metastasis.

AIM To establish an LC-MS/MS method for the simultaneous content determination of paeoniflorin,albiflorin,neochlorogenic acid,chlororogenic acid,catechin,epicatechin,ethyl gallate,danshensu,ferulic acid,caffeic acid,gallic acid,protocatechuic acid,protocatechualdehyde and rosmarinic acid in Yangxue Qingnao Granules (Angelicae sinensis Radix,Chuanxiong Rhizoma,Paeoniae Radix Alba,etc.).METHODS The analysis of methanol extract of this drug was performed on a 20 ℃ thermostatic Waters Symmetry Shield RP C18 column (3.9 mm × 150 mm,5 μm),with the mobile phase comprising of acetonitrile-water (containing 0.1％ formic acid) flowing at 0.4 mL/min in a gradient elution manner.RESULTS Fourteen constituents showed good linear relationships within their own ranges,whose average recoveries were 85.5％-107.0％ with the RSDs of 2.0％-5.0％.CONCLUSION This simple,sensitive,accurate and reproducible method can be used for the quality control of Yangxue Qingnao Granules.