Using the fluorescence method, the effect of Luteolin ( Lut) on H2O2 release of peritoneal macrophages(M(?)s) in rat was studied. The results showed that H2O2 release of peritoneal M(?)s stimulated by op-sonized Zymosan was reduced by in vitro treatment of Lut. The inhibitory effect of Lut is in a concentration-dependent manner over the range of 4 ? 10-7-10-5mol/L. When M(?)s was cultivated with Lut for 4 h, the inhibitory effect of Lut was the most obvious.

Objective:To study the expression levels of nuclear factor kappa B, Bcl-2 associated K and TNF-αproteins to discuss the effects of NF-κB and Bak proteins in the pathogenesis of UC.Methods:Eighty clean grade of adult Sprague-Dawley( SD) rats were used,male and female in half and then rando mly selected sixty as the model group,another twenty as the control group.SD rats model were manufactured by a compound method:Trinitrobenzene sulfonic acid ( TNBS )+ethanol.We observed and assessed colonic mucosa by the general morphology and histological changes.To applicated immunohistochemistry and RT-PCR methods to detected the protein and mRNA expression levels of NF-κB,Bak and TNF-αin the model groups and the control group and to analysed their relationships.Results:The successful rate of making model was 97%.The number of inflammatory cells in the model groups more than the control(P<0.01).Group immunohistochemical and RT-PCR,NF-κB and TNF-αproteins and mRNA in UC colon epithelium cells and inflammatory cells were higher than the control(P<0.01).Bak protein in inflammatory cells were lower than the control(P<0.01),but there was no statistical significance in epithelial cells(P>0.05).The expression levels of NF-κB,TNF-αincreased as the histological grade increased(P<0.05),however,the expression level of Bak decreased(P<0.05).NF-κB in colonic mucosa of rats with UC had a significantly positive correlation with that of TNF-α(r=0.892,P<0.01),and negatively correlated with that of Bak(r=-0.793,P<0.01).Conclusion:The levels of NF-κB and Bak may be related to the occurrence and development of UC.

Objective To investigate the usage of oral cardio-cerebrovascular Chinese patent medicine in Tiantan Community Health Service Center of Beijing (hereinafter referred to as “the centre”) during 2010-2015. Methods Varieties, dosage and sales amount of oral cardio-cerebrovascula Chinese patent medicine during 2010-2015 were analyzed through hospital information system database of the centre. DDDs, DDC and B/A values were calculated. Results Oral cardio-cerebrovascular Chinese patent medicine accounted for 23.67% of all kinds of medicine during 2010-2015. The average annual growth rate of the amount of sales was 11.96%, accounting for 48.73% of total sales. DDDs showed an upward trend over six years, including DDDs of Compound Danshen Dirpping Pills ranking the first. DDC and B/A also showed the daily cost of most of oral cardio-cerebrovascular Chinese patent medicine was less than 10 yuan. B/A value was approximately equal to 1, indicating that these kinds of medicine had better synchronization, and high frequency of usage. Oral cardio-cerebrovascular Chinese patent medicine dominated in all kinds of Chinese patent medicine during 2010-2015, which was related to the reason that most patients were old people. The frequentness during 2010-2015 in the centre did not changed much, and the structure was relatively stable. Conclusion The usage of oral cardio-cerebrovascular Chinese patent medicine in the center is reasonable, with some problems, which need to be further supervised.

Objective To investigate the clinical effect of minimally invasive percutaneous repair of acute closed Achilles tendon ruptures with intraoperative ultrasound assistance.Methods A retrospective case series study was made on 24 patients with acute closed Achilles tendon ruptures hospitalized between January 2013 and June 2015.There were 19 males and five females,aged 18-50 years (mean,30.5 years).MRI showed total Achilles tendon ruptures,and time from injury to operation was 1-3 days.All patients underwent minimally invasive percutaneous repair with high-frequency ultrasound assistance.Operation time and either intraoperative or postoperative complications were documented.At last follow-up,American Orthopedic Foot and Ankle Society (AOFAS) ankle-hindfoot score and Arner Lindholm system were used to evaluate ankle functional recovery.Results Operation time was 35-60 minutes (mean,42 minutes).No intraoperative injury to the major vessel and nerve occurred.Follow-up was conducted for 10-18 months (mean,14.5 months).No surgery-related complications were detected,including wound infection,skin necrosis and tendon reruptures.Ankle function was recovered to normal.AOFAS score were improved from preoperative 53-74 points [(61.5-± 6.7)points] to 91-100 points [(97.1 ± 3.2) points] at last follow-up (P ＜ 0.05).According to the Amer Lindholm system,the treatment outcome was excellent in 21 patients and good in three,with the excellence rate of 100％.Conclusion Ultrasound-assisted minimally invasive percutaneous technique improves the quality of tendon anastomosis,avoids injury to the sural nerve,minimizes the incidence rate of complications such as re-rupture,wounds infections or skin necrosis and hence is an ideal method for repair of acute closed Achilles tendon ruptures.

Objective To observe the biological effects of magnetic fields of different intensities on microvascular endothelial cells in the human brain (HBMECs).Methods HBMECs were cultured in vitro under normal conditions and randomly divided into a control group and several magnetic induction groups——26 mT,62.5 mT,110.7 mT and 215.6 mT at the center pole.Any changes to the cytomembranes were observed 72 h after planking using the lactate dehydrogenase (LDH) method.Superoxide dismutase and malondialdehyde methods were used to detect cellular oxidation due to the magnetic field.An inverted microscope was used to observe any changes in cell morphology,and flow cytometry was employed to detect cell apoptosis.Results Compared with the control group,the LDH value of the 215.6 mT group was significantly higher,but there were no significant differences in oxidative damage,apoptosis or morphology observed.Moreover,there were no significant differences between the controls and the 26 mT,62.5 mT and 110.7 mT groups in any of the above measurements.Conclusion Magnetic fields of different intensity have different biological effects on HBMECs.A 215.6 mT magnetic field influences their cell membranes but causes no oxidative damage,cell apoptosis or morphological changes.These observations and the mechanism need further exploration.

Objective To compare the clinical efficacy and safety of pegylated interferon α-2a (Peg IFN α-2a) or adefovir dipivoxil(ADV) monotherapy and their combination therapy in HBeAg positive chronic hepatitis B (CHB) patients. Methods An open randomized controlled multicenter clinical trial was performed. One hundred and twenty cases with CHB were divided into 3 groups: Peg IFN α-2a monotherapy (group A), ADV monotherapy (group B) and Peg IFN α-2a plus ADV combination therapy (group C). The virological response (VR), serological response (HBeAg, HBsAg clearance and seroconversion), biochemical response (BR) and sustained response (SR) were tested at week 24 and 48 of therapy and week 48 of follow-up after end of treatment (EOT) for'evaluation of therapeutic effects, safety and drug resistance. The efficacy was compared using X2 test. Results At week 48 of treatment, the VR (HBV DNA ≤500 copy/mL) rates were 36. 8%(14/38), 37. 5%(15/40) and 62. 9% (22/35), respectively in groups A, B and C; that in group C was higher than those in groups A and B (X2 = 4. 933, 4. 801, respectively; both P < 0. 05); HBeAg seroconversion rates in three groups were 44. 7% (17/38), 17. 5% (7/40) and 51. 4% (18/35), respectively. At week 48 of follow-up,SR rates in three groups were 34. 2%(13/38), 15. 0%(6/40) and 48. 6% (17/35), respectively; those in groups C and A were higher than that in group B (X2 = 9. 894,P<0. 01;X2 =3. 903, P<0. 05, respectively). Conclusions VRs at week 24 and 48 of Peg IFN α-2a plus ADV combination therapy are better than Peg IFN α-2a or ADV monotherapy. SRs at week 48 of follow-up after Peg IFN α-2a monotherapy and combination therapy are both better than ADV monotherapy.

Objective In order to assess the structure damage of hip joint in ankylosing spondylitis (AS), a new radiograph-based scoring method was developed according to the radiological characteristics of hip involvement in AS, as well referring to prior existing scoring indexes. Methods A new scoring method consti-tuted of erosion, sclerosis and joint space narrowing was developed, pelvis anterior-posterior plain films acquired from patients with AS at baseline and follow-up were collected and assessed by two physicians who were trained in image reading by radiologists. All films were scored independently and blindly. Intra- and inter-reader reliability were assessed by intra-class correlation coefficient (ICC), the feasibility of this new scoring method was assessed by the mean time acquired to score a plain (two hips), its ability to detect the change of structure damage was assessed by the comparison of score differences between baseline and different follow-ups. The date were analyzed by paired-t test or nonparametric tests. Analysis of Variance (ANOVA) or nonparametric tests were utilized for the comparison of means of quantitative variables among the three groups, while Chi-square test for rates of categorical variables. Results No statistically significant differences existed in demographic data and suspected risk factors among the three groups at baseline (P>0.05). Intra-observer reliability was good (0.84 and 0.89), as well as the inter-observer reliability (0.72), the mean time needed to score was (33 ±10) seconds. Score changes were not statistically significant in the groups with follow-up duration of 1-2 and 3-4 years, but in the group of over 5 years, baseline/final scores assessed by the two observers were (6.0±2.7/7.5±3.7) and (5.6±2.1/7.1±3.6), respectively, both changes were statistically significant (t=2.86, Z=-2.99; P<0.01). Conclusion This new method is not only reproducible and easy to operate in clinic practice, but also can tell the changes of hip joint structure damage in the interval of over 5 years, further validation is requeired to demonstrate its discriminability in large populations.

Objective:To explore the sequence of reduction and fixation in the treatment of middle and lower tibiofibular fractures on the same plane using tibial intramedullary nailing plus fibular plating.Methods:A retrospective analysis was performed of the 58 patients with middle and lower tibiofibular fractures on the same plane from January 2016 to December 2017. They were 38 males and 20 females, aged from 20 to 65 years (average, 40 years). The left side was affected in 30 cases and the right in 28. By the AO classification, 27 cases were type 42-A, 18 ones type 42-B and 13 ones type 42-C. Of them, 33 had the fibula reduced and fixated first (the fibular group) while 25 had the tibia reduced and fixated first (the tibial group). The 2 groups were compared in terms of operation time, rate of tibial closed reduction, rate of dynamization of intramedullary nails, fracture healing time and postoperative complications.Results:All the patients were followed up for 12 to 24 months (average, 17.2 months). The operation time in the fibular group was 96 minutes ± 15 minutes, significantly shorter than that in the tibial group (116 minutes ± 19 minutes)( P<0.05). The rate of tibial closed reduction was 84.8% (28/33) in the fibular group and 60.0%(15/25) in the tibial group, presenting a significant difference ( P<0.05). There were no significant differences between the 2 groups in the rate of dynamization of intramedullary nails, fracture healing time or postoperative complications ( P>0.05). Conclusions:Tibial intramedullary nailing plus fibular plate osteosynthesis is an effective treatment for the middle and lower tibiofibular fractures on the same plane. When the fracture line is not located in the narrow segment of the tibia, reduction and fixation of the fibula first is advantageous over reduction and fixation of the tibia first, because it can facilitate tibial reduction and nail placement and improve surgical efficiency without increasing the fracture healing time.

Objective: To analyze the clinical characteristics of patients with ankylosing spondylitis (AS) with inflammation bowel disease (IBD). Methods: AS patients fulfilling the 1984 modified New York diagnostic criteria were recruited in Chinese AS Prospective Imaging Cohort (CASPIC) consecutively from April 2016 to June 2017 in Chinese People′s Liberation Army General Hospital by using smart management system for spondyloarthritis (SpAMS). The diagnosis of IBD was confirmed by tissue pathology via ileocolonoscopy. Demographic, clinical and biochemical data were collected. Results: In total, 893 patients with AS were recruited with the mean age 30.8 years. The majority were men (739, 82.8%). There were 64 (7.2%) patients concomitant with IBD. The mean age [(34.5±7.5) years vs. (30.5±8.8) years, P<0.001] was older and the disease duration [(10.8±6.9) years vs. (8.1±5.9) years, P=0.001] was longer in patients with IBD than patients without. Compared with patients without IBD, patients with IBD had more frequent involvement of the cervical spine [(21.9% (14/64) vs. 10.5% (87/829), P=0.006) and thoracic spine [29.7% (19/64) vs. 12.3% (102/829), P<0.001]. Uveitis [28.1% (18/64) vs. 16.4% (136/829), P=0.017] and psoriasis [7.8% (5/64) vs. 2.3% (19/829), P=0.009] were also more common in patients concomitant with IBD. In addition, patients with IBD had significantly higher scores in BASDAI (3.3±2.1 vs. 2.4±1.8, P<0.001), BASFI [2.2 (1.0,3.3) vs. 1.1(0.2,2.4), P<0.001)] and ASAS HI (7.1±4.3 vs. 5.3±3.7, P= 0.001) than patients without IBD. Conclusions Compared with patients without IBD, AS patients concomitant with IBD have more severe disease activity and organ dysfunction. Furthermore, the uveitis and psoriasis are more frequently accompanied in AS patients with IBD.

Objective:To explore the peer support experience of newly graduated nurses during standardized training period.Methods:Using phenomenological qualitative research methods and purposive sampling, from April to December 2020, 32 new nurses who participated in the standardized training peer support program in the Affiliated Hospital of Yangzhou University were selected. Semi-structured interview was conducted and Claizzi content analysis method was used to analyze the data.Results:Peer support during the standardized training of new graduated nurses could be summarized into four major themes and eleven sub-themes. Theme 1: cognition and attitude (emotional security, adaptive guidance, recognition of the value of peer support, positive intention to support). Theme 2: peer support needs (department-related information needs; knowledge and skills experience needs; emotional communication needs; career growth support needs). Theme 3: peer support experience (adaptive behavior changes, cognitive and emotional changes, differences in perceived expectations of supporters and support effects).Conclusions:During the standardized training, we should attach importance to the important supporting role of peer support for new nurses. By building a peer support platform for new nurses and broadening experience exchange channels, we can enhance the positive experience of peer support, so as to promote the role adaptation and career growth of new nurses.