Th17 is a CD4+ T cell subset that is a new member of Th1 and tH2.Recent studies have shown that it products IL-17A,IL-17F,IL-21 and IL-22,which play an imoortant role in rheumatoid arthritis.systemic lupus erythematosus,systemic sclerosis,inflammatory howel disease.autoimmune myocarditis and other autoimmune diseases.Deepen the understanding of Th17 and Th17 production in the advancement of autoimmune diseases will provide a new basis for future diagnosis.Th17 will become a new target for the treatment of human autoimmune diseases.

Objective To explore the application value of high frequency probes in ultrasonic diagnosis of acute appendicitis.Methods Using high frequency probe to detect 356 patients with right lower quadrant abdominal ultrasound,and the results were analyzed.281 cases were confirmed by operation and pathology.Results 240 cases of 356 patients were detected low frequency transducer,and the detection rate was 67.4％.Application of high frequency probe were detected in 322 cases,and the detection rate was 90.4％.Pathological progress of appendicitis with appendicitis,display rates have increased,there was a significant correlation between the two.Conclusion The use of high frequency color ultrasound imaging for suspected acute appendicitis in patients has definite diagnosis and differential diagnosis.

Objective Study on the clinic value of the application of two-dimensional and three-dimensional sonography on observing the fetal facial structure. Methods Applying Voluson 730 three-dimensional probe surface imaging mode and two-dimensional probe to make sonography on 16～48 weeks fetus in 1805 cases, emphasized on observing the fetal facial structure, saving the image information, making three-dimensional reconstruction and comparing the result of post partum and the result after induction of labor. Results In 1805 cases, applying two-dimensional and three-dimensional sonography to observe the facial structure of the fetus of 23～35 weeks, the display rate is 93.1% and 95.1% respectively, and there is no obvious difference between the two modes. The three-dimensional is higher than two-dimensional for the fetus less than 23 weeks, with the display rate 69.6% and 84.8% respectively, and the two-dimensional is a bit higher than three-dimensional for the fetus more than 35 weeks, with the display rate 90.4% and 88.7% respectively. One cleft lip case is excluded. Conclusion As long as mastering the optimum examination time and operation skill, there is no obvious difference between the display rate of two-dimensional and three-dimensional sonography on observing the fetal facial structure, the two modes can be complementary in the work to improve the accuracy of the diagnosis and be favorable for the prepotency.

Objective To investigate the status of Ureaplasma urealyticum (Uu) ,Mycoplasma hominis (Mh) and Chlamydia trachomatis(Ct) in patients with urogenital tract infection ,and to analyze the drug resistance of mycoplasma .Methods The myco‐plasma and its drug sensitivity of urogenital tract specimens were detected by culture‐identification‐susceptibility integration kit .Ct was detected by using immunochromatographic method .Results Among 497 cases of specimens ,there were 194 cases of simplex Uu infection (39 .0% ) ,9 cases of simplex Mh infection (1 .8% ) ,73 cases of Uu and Mh mixed infection (14 .7% ) ,and 54 cases of Ct infection (10 .9% ) .There were 38 cases of Ct and Uu mixed infection (7 .6% ) in the Ct positive specimens .The isolated myco‐plasmas were sensitive to doxycycline ,josamycin and minocycline ,but resistant to other drugs in varying degrees .Conclusion There are both simplex infection and mixed infection of chlamydia and mycoplasma in the patients with urogenital tract infection . The clinical use of antibiotics should be reasonable based on pathogen detection and drug susceptibility test results .

[Objective] To optimize the technology for Antipyretic Mixture (AM), which is mainly composed of Herba Ephedrae, Gypsum Fibrosum (GF), Rhizoma Amenarrhenae, Radix Isatidis, Rhizoma Imperatae, Radix Puerariae, etc. . [Methods] Orthogonal test was applied for the screening of technology. Rat model of fever was induced by dried yeast and body temperature served as the screening index. [Results & Conclusion] The optimal process was as follow: (1) cleaning the herbs and smashing Gypsum Fibrosum into pieces and then soaking for one hour; (2) decocting the herbs with 10-fold water for one hour (Gypsum Fibrosum decocted first for one hour) ; (3) extracting the volatile oil, filtering and then concentrating the decoction; (4) evaporating again the volatile oil; (5) mixing the solutions and preparing as 1 kg/L oral liquid.

Objective To evaluate the applicated value of color Doppler ultrasound in diagnosis for neck lymph node metastatic tumor.Methods A retrospective analysis of 53 cases with metastatic tumors in cervical lymph nodes of two-dimensional and color Doppler ultrasonography features was taken out.Results The color Doppler ultrasound on cervical lymph node metastasis tumor location,shape,size and internal structural characteristics were observed,it is found that the characteristic change,provide reliable evidence for the clinical diagnosis.Conclusion The color Doppler ultrasound to cervical lymph node metastatic tumor has a high diagnostic value,can be used as the cervical lymph node metastatic tumor imaging examination of choice.

Objective To investigate insulin-like growth factor-1(IGF-1) on the protective effect of infant myocarditis.Methods The serum levels of IGF-1 was detected by two-site enzyme-linked immunosorbent assy ( ELISA) and CK-MB by electrochemiluminescence at the acute and convalescent in 50 infant with myocarditis,and 50 normal healthy children as the controls.Results The serum levels of IGF-1 in acute myocarditis was significantly lower than those of healthy children and the convalescen[(22.90 ±9.30) mg/L vs (45.69 ±10.95) mg/L, (38.99 ±9.06)mg/L,all P<0.01],while the CK-MB was significantly higher than those of the control group and the convalescent[(77.48 ±8.71)mg/L vs (14.99 ±7.62)mg/L,(17.99 ±6.31)mg/L,all P<0.01.IGF-1 and CK-MB was negative correlation (r=-0.62,P<0.01).Conclusion IGF-1 is involved in the repair process of myocardial injury in myocarditis infant,and play some protective role in the mechanism.

Objective To evaluate the application effect of evidence-based care model in hemostasis by compression in patients after renal biopsy.Methods 80 patients undergoing renal biopey from December 2006 to December 2009 in our hospital were chosen as the research object.They were randomly divided into the control group and the observation group with 40 patients in each group.The control group was given routine nursing,and the observation group was treated with evidence-based care model for nusing.The re-bleeding rates,satisfaction degree and the SAS,SDS score,mastering degree of related knowledge,treatment compliance for the two groups before and after nursing were compared.Results The ineidence rate of bleeding in the observation group was higher than the control group,satisfaction degree was higher,and the SAS,SDS score,related knowledge,treatment compliance were all better than the control group,there were significant differences.Conclusions The effect of evidence-based care model in hemostasis by compression after renal biopsy is better.It can significantly reduce the incidence of adverse circumstances and improve the negative emotional state of patients.

Objective To investigate the pregnancy opportunity and outcome of patients with sysmetic lupus erythematosus (SLE).Methods We carried out a retrospective analysis of the clinical information of patients who suffered from SLE complicated with pregnancy and were hospitalized to People's Hospital of Peking University from December of 1992 to February of 2012.Chi-square test were used for statistical analysis.Results Forty-nine cases of patients with SLE complicated with pregnancy had 52 pregnancies in total.In 27 cases of planned pregnancies,24 cases(89％ )resulted in live births and 5 cases( 18％ ) had flares during pregnancy.Of the 24 live births,3 cases( 12％)were premature deliveries and 4 cases(17％) had low birth weight infants.In 25 cases of unplanned pregnancies,12 cases (48％) resulted in live births and 20 cases (80％) had flares during pregnancy.Of the 12 live births,6 cases(50％ ) were premature deliveries and 6 cases (50％) were low birth weight infants.The patients in the planned pregnancy group tended to have flares during pregnancy more frequently than those in the unplanned group (P＜0.01),the former were more likely to have live births than the latter (P＜0.01) and were less likely to have premature delivery (P＜0.05).Conclusion Patients with SLE should have planned pregnancy and need collaborative supervision of both rheumatology and immunology department and obstetric department to improve live birth rate,decrease premature delivery and the activity of SLE during pregnancy.

Objective To determine the relationship between cigarette smoking and the incidence of systemic lupus erythematosus.Methods Database including Cochrane Library,Pubmed,OVID and Elsevier were electronically searched to collect case-control and cohort studies on the relationship between cigarette smoking and incidence of systemic lupus erythematosus.The literatures were screened and the data were extracted independently according to the inclusion and exclusion criteria.The quantitative analysis were performed by using Stata 12.0 software.Results The pooled OR values (95％ confidence interval)of current smoking and ever smoking were 1.82 (95％CI 1.42～2.34) and 1.22 (95％CI 0.96～1.56) respectively.Conclusions Our Meta-analysis revealed a moderate but statistically significant association between current smoking and development of systemic lupus erythematosus.However,it is still not confirmed whether the past smoking is one of the risk factors of systemic lupus erythematosus.