Objective To investigate the clinical effects of azithromycin combined with glucocorticoid for the mycoplasma pneumonia in children.Methods 124 children with mycoplasma pneumonia were randomly divided into the study group and the control group with 62 cases in each group.On the basis of the routine symptomatic treatment,the control group was given azithromycin(10mg · kg-1 · d-1) and the study group was treated with azithromycin and hydrocortisone sodium succinate (0.2mg/kg) in the first five days,then stop giving hydrocortisone sodium succinate.The total course was two weeks.Results The study group of children with cough,fever and pulmonary rales disappeared significantly shorter than the control group.Comparison of clinical efficacy,the study group effective rate was 95.2％,the control group was 83.9％,the difference was statistically significant (P ＜ 0.05).Study group had 9 cases of adverse reactions,the control group had 14 cases of adverse reactions,the difference was statistically significant (P ＜ 0.05).Conclusion Glucocorticoid combined with azithromycin is used to treat children with mycoplasma pneumoniae pneumonia,which can improve the therapeutic efficacy and shorten treatment time.It is a better choice of clinical treatment for mycoplasma pneumoniae pneumonia in children.

OBJECTIVE: To explore the mechanism of Sanqi Qiancao Recipe (SQR) in treating metrorrhagia caused by copper intrauterine device (IUD) in rabbits and to provide experimental evidence for preventing and treating this disease. METHODS: Fifty-six rabbits were randomly divided into seven groups, which were normal control group, sham-operation group, untreated group, indomethacin-treated group, low-dose SQR-treated group, medium-dose SQR-treated group and high-dose SQR-treated group. Copper IUD insertion was operated in rabbits of the last five groups. Rabbits in the last four groups were treated orally with indomethacin and low-, medium- and high-dose SQR respectively for a week. Rabbits in the untreated group, normal control group and sham-operation group were given distilled water orally. Hematocrit, blood viscosity at low, medium and high shear rate, plasma viscosity and blood sedimentation were examined after treatment. RESULTS: The hematocrit, blood viscosity at low, medium and high shear rate and plasma viscosity were higher in the untreated group than those in the normal control group with significant differences (P<0.01) while those indexes in low-, medium- and high-dose SQR-treated groups were significantly lower than those in the untreated group (P<0.05 or P<0.01). CONCLUSION: SQR can lead to a decrease in blood viscosity and improve the blood flow, which may be one of the mechanisms of SQR in treating metrorrhagia after copper IUD insertion.

As one of the first pilot eight-year clinical medicine education institutions, Xiangya School of Medicine has already put it into practice for almost 12 years. After years exploring and reforming, its cultivating plan has already been built up. This paper will make a brief comparative analysis between 2004 version and 2012 version in cultivating objectives, model and characteristics, demonstrated the development and reform of its eight-year program education, shown its features such as strengthening the basic knowledge, emphasizing the clinical skills, cultivating the capabilities, and broadening the international perspectives, and attempt to contact the residency and research training, in order to provide the reference for the eight-year program education reform.

Objective To establish analysis methods of two-dimensional(2-DE)gel electrophoresis for human osteosarcoma.Methods A series of methods,including Immobilized pH gradient were used as ID.Some applications,such as sample preparation used as choice of IPG gel,were improved.Coomassie brilliant blue staining,ImageMaster 2D Elite 3.01 analysis software,MALDI-TOF/ TOF MS and SWISS-PROT database serching were used to separate and indentify the proteins of human osteosarcoma.Results The good use pattern including repetitive experiments showed that in three experiments,the amount of protein spots of the same team sample deviates from the relative standard as following,the average of variation coefficient(%) : 23.00?10.11 and 20.33?9.90;and the range of variation coefficient(%) were:3.80-6.89 and 2.706.89 from osteosarcoma and normal group respectively.The isoelectric point and molecular weigh of the same protein spots in three experiments deviated from relative standard as following:(8.93%?1.17)%,(10.16?2.02)%,(10.87?3.86)%,respectively.Therefore,better resolution and repetitive 2-DE atlas were obtained.The proteins from 11 pairs of sample were analysed by mass spectrometry,9 identified proteins(transthyretin precursor, Triosephosphate isomerase,slow skeletal muscle,cardiac muscle Troponin T,Cofilin-1,Myosin light chain 1,Calgranulin B,Heat-shock protein,Annexin A5, Fanconi anemia group D2 proteins) were more abundant in osteosarcoma tisstues and 2 proteins manganese SOD and carbonic dehydratase appeared down-regulation in osteosarcoma tisstues.Conclusion This optimized 2-DE map is an important tool for further study on osteosarcoma,and these identified proteins were related-proteins with osteosarcoma.It is suggested that the changes of the proteome are involved in the pathology processe of osteosarcoma.

Objective To compare the effects of two surgical procedures via comparison on tibial fractures with/without proximal fibula fractures ,and to explore the reference importance of proximal fibula fractures in surgery for complex tibial plateau fracturesinvolvingposterior and lateral spine .Methods Totally 69 cases of patients with complex tibial plateau fracturesinvolving‐posterior and lateral spine (Schatzker Ⅴ and Ⅵ) were selected ,who accepted treatment between January 2008 and October 2012 . The patients were screed according to the quality of fracture reduction immediately after operation .39 cases were screened whose scores were excellent and the general condition was similar .The patients were divided into group A1 ,A2 and B1 and B2 according to the whether there was proximal fibula fractures and whether accepted posterior lateral support steel plate:group A1 (n=10):without proximal fibula fractures but with posterior lateral support steel plate;group A2 (n=11):without proximal fibula fractures and without posterior lateral support steel plate;group B1 (n=9):with proximal fibula fractures and with posterior lateral support steel plate;group B2 (n=9):with proximal fibula fractures but without posterior lateral support steel plate .According to the knee scoring system of American Hospital for Special Surgery (HSS) ,a total of 39 cases of patients were followed up for 12-14 months (average 12 .8 months) to evaluate the recovery condition of knee function .And correlations between the scores of the 4 groups were compared .Results There were statistically significant differences between group B1 and group B2 on HSS scores (P<0 .01) ,but there were not between group A1 and A2 (P>0 .05) .Conclusion For patients with complex tibial plateau fracturesin‐volvingposterior and lateral spine and with proximal fibula fractures ,posterior lateral support steel plate can achieve more satisfac‐tory rehabilitation function .

ObjectiveTo compare the efficacy and safety of sequential intravenous moxifloxacin treatment against cefoperazone/sulbactam in patients with acute biliary tract infection. MethodsA prospective, randomized, non-blind, multi-centric study was performed to compare the efficacy and safety of moxifloxacin 400 mg Ⅳ once daily to cefoperazone-sulbactam (2 g q12 hours) and metronidazole 250 ml once daily to treat patients, from March- December 2009 in 13 hospitals, with acute biliary tract infection.The primary efficacy variable was clinical cure rate after the end of a 5 - 14 day treatment period,bacteriologic outcomes and adverse reaction effects were also determined.ResultsA total of 319 subjects were enrolled, 282 of whom were eligible for protocol efficacy analyses ( 138 moxifloxacin, 144 comparator).Demographic and baseline medical characteristics were similar between the 2 groups. Clinical success rates were 86.2％ for moxifloxacin and 84. 7％ for the comparator(P =0. 7192). Pathogens (55 moxifloxacin, 61 comparator) were isolated from bile or blood cultures and the predominant strains were E. coli, Klebsiella species and Enterococcus species. Bacterial eradication rates were 85.4％ ( 37 of 55 ) with moxifloxacin versus 82. 0％ (50 of 61 ) in the comparator group ( x2 = 0. 2568, P = 0. 6123 ). Both treatments were safe and well tolerated. ConclusionsE. coli, Klebsiella species and Enterococcus species were the most common bacteria isolated from bile or blood from patients with acute biliary tract infection. Moxifloxacin monotherapy has high clinical and bacteriological efficacies and safety for the treatment of acute biliary tract infection.

ObjectiveTo explore the effects of social isolation on the cognition and expression of 5-HT2C receptor(5-HT2CR) and adenosine deaminase that act on RNA 1(ADAR1) in BALB/c mice.MethodsThe healthy BALB/c mice were isolated for 2,4,and 8 weeks individually since postnatal 21 days respectively to set up isolation mice model,the same age mice without isolation were regarded as control group.The new object location and the new object recognition tests were used to measure the spatial and non-spatial cognitive function,and western blot was used to measure the protein expression of 5-HT2CR and ADAR1.ResultsThe new object location test showed that the spatial discrimination index (DI) of BALB/c mice isolated for 2 weeks was decreased significantly compared with the control group(control group was (0.075±0.340),isolation group was (-0.653±0.308),P<0.05),and no obvious difference was found for the group isolated for 4 and 8 weeks.The new object recognition test showed that the non-spatial DI of BALB/c mice isolated for 2 and 4 weeks were decreased significantly compared with the control group(control 2 weeks group was (0.088±0.210),isolation 2 weeks group was (-0.945±0.194),P<0.05;control 4 weeks group was (0.105±0.267),isolation 4 weeks group was (-0.506±0.215),P<0.05),and no obvious difference was found for the group isolated for 8 weeks.Compared with the control group the expression of 5-HT2CR and ADAR1 in the hippocampus were decreased significantly for the group isolated for 2 weeks.(5-HT2CR:control group was (1.025±0.144),isolation group was (0.891±0.026),P<0.05.ADAR1: control group was (0.839±0.120),isolation group was (0.629±0.094),P<0.05).ConclusionsTwo week social isolation results in the decrease of spatial and non-spatial cognitive function in BALB/c mice,in the meanwhile,social isolation stress results in the obvious decrease of 5-HT2C receptor and ADAR1 protein expression in the hippocampus of BALB/c mice.

Medical simulation teaching is an emerging and developing teaching method in our coun-try. At present, the simulation teaching centers are developing rapidly in higher education institutions, but how to improve the effectiveness in the operation of the centers is still a subject that needs to be discussed. Based on our own experience, this paper analyzes the related factors in developing medical simulation teach-ing centers, making summary and demonstrations from aspects of team building, teacher training, docking needs, staffing and so on, so as to provide references and suggestions for the construction of medical simu-lation center higher education institutions.

Objective: To estimate the effective dose burden to the public in Suzhoui induced by medical exposure from computed tomography (CT) and digital radiography (DR). Methods: Twenty-seven hospitals were selected by stratified random sampling. The application information was colleted from picture archiving and communication system (PACS) and radiology information system (RIS). For DR, DAP was measured by the dose-area product meter in different body parts, then the effective dose values were calculated by the DAP. For CT, effective dose was estimated by measuring CT dose index weighted (CTDI_w) and scanning parameters in different parts of the body. The public dose burden caused by DR and CT medical exposure in Suzhou was estimated according to the scanning time and effective dose to each part. Results: The effective dose due to DR examination was abdomen AP 0.565 mSv, pelvis AP 0.280 mSv, skull LAT 0.016 mSv, skull AP 0.012 mSv, chest LAT 0.111 mSv, chest AP 0.060 mSv, thoracic spine LAT 0.100 mSv, thoracic spine AP 0.102 mSv, lumbar spine LAT 0.307 mSv and lumbar spine AP 0.152 mSv, respectively. The effective doses from CT scanning were 1.33 mSv for head, 5.75 mSv for thorax and 7.31 mSv for abdomen, respectively. The annual collective effective dose in Suzhou in 2017 from DR exposures and CT scans was 9 593.07 man·Sv, and the average annual effective dose was 0.898 mSv. Conclusions The contribution of CT medical radiation to the public dose is much greater than that of DR. Controlling the frequency of medical exposure and single scan dose is an effective way to reduce the public dose burden. The public dose burden from DR and CT medical exposure in Suzhou is at a high level and attention needs to be paid by relevant health administrative departments.

OBJECTIVETo determine the effect of obesity on prostate specific antigen (PSA) in men with benign prostatic hyperplasia (BPH) and develop a PSA-related parameter that can eliminate the effect of obesity.

METHODSWe reviewed the clinical data of 706 patients with BPH. Two PSA-related parameters, namely PSA mass (total circulating PSA protein) and PSA mass ratio (total circulation PSA protein per prostate volume), were calculated for all the patients and the association of BMI with PSA, PSA mass, and PSA mass ratio was assessed.

RESULTSA higher BMI was significantly associated with a greater plasma volume and prostate volume (P<0.05). Linear regression analysis revealed a greater adjusted R2 of BMI versus plasma volume than of BMI PSA (0.569 vs 0.027). PSA was positively associated with the prostate volume and negatively with BMI and plasma volume (P<0.05). PSA mass was positively associated with prostate volume (P<0.05) but was not associated with BMI or plasma volume (P>0.05). PSA mass ratio was not associated with prostate volume (P>0.05) but negatively associated with BMI and plasma volume. Plasma volume and prostate volume, PSA, and PSA mass ratio (P<0.05), but not PSA mass (P>0.05), differed significantly among normal-weight, overweight, and obese patients.

CONCLUSIONA higher BMI is associated with a greater plasma volume in BPH patients. In obese patients with BPH, a lower PSA concentration may result from hemodilution caused by a greater plasma volume, and PSA mass can eliminate the effect of obesity on PSA.

Body Mass Index ; Hemodilution ; Humans ; Male ; Obesity ; pathology ; Organ Size ; Overweight ; pathology ; Prostate ; pathology ; Prostate-Specific Antigen ; blood ; Prostatic Hyperplasia ; diagnosis ; Prostatic Neoplasms ; diagnosis