BACKGROUND: In the investigation of promoting fracture healing, exogenous growth factor is very instable, expensive and inaptitude to extend generally, so how to promote the expression of endogenous growth factor effectively is worthy of further studies. OBJECTIVE: To study the effects of Shenggu injection(SGI) on the expression of basic fibroblast growth factor(bFGF) and vascular endothelial growth factor(VEGF) in fracture healing. DESIGN, TIME AND SETTING: The randomized controlled animal experiment was performed at the Orthopaedic laborary, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology between July 2007 and August 2008. MATERIALS: Sixty clean male SD rats aged 3 months were enrolled. The components of 1 g/L SGI were angelica sinensis, ground beetle, barrenwort, etc., provided by Hubei TCM hospital. METHODS: After the tibial bone fracture model was established, the SD rats were divided into two groups with 30 rats in each group, experimental group and control group. The experimental group was injected with SGI at the bone stumps, the other group was injected with the same volume of saline. This was carried once every 2 days with 0.2 mL once. Five SD rats of each group were executed to get bony callus at the 1st, 2nd, 3rd, 4th, 5th and 6th weeks after operation. MAIN OUTCOME MEASURES: The methods of immunohistochemistry were used to detect the protein expression level and differences of bFGF and VEGF in the callus tissue during different periods of fracture healing. RESULTS: The immunohistochemistry findings showed that the expression levels of bFGF and VEGF in the experimental group were higher than those in the control group in each period. CONCLUSION: SGI can improve the expression levels of bFGF and VEGF in callus tissue during fracture healing, which is maybe one of the mechanisms of SGI to promote the healing of fracture.

Objective To explore the signification and method of Cut-off verification and gray zone setting in chemiluminescent assay.Methods NCCLS EP-12 A2 document defines that C50 is the analyte concentration of cut off value for immunology qualitative test and C5-C95 interval is the range of analyte concentration that yields 5％ positive results to 95％ positive results for immunology qualitativc test.The C50 and C5-C95 interval of HBeAg in ARCHITECT i2000 were worked out according to the cut off value provided by HBeAg reagent calibrated in ARCHITECT i2000,which were verified to approve the character declaimed by manufactory or not.Gray zone was set and the procedure of cut off verification and gray zone set in chemiluminescent were built; A set of quality control was detected 20 times with two different lot HBeAg reagent kits,S/CO was caculated and compared with t test.Results C50 and C5-C95 interval of reagent (lot 06087L100,96378HN00) were 0.171 PEI U/ml,0.125 PEI U/ml; ＞0.154 PEI U/ml to 0.188 PEI U/ml,0.119 PEI U/ml to ＜0.150 PEI U/ml,respectively.S/CO of negative quality control and positive quality control were (0.550 ±0.038),(2.422 ±0.084) and(0.334 ±0.063),(3.587 ±0.321),respectively.They all approved the character (the sensitivity at cut off was less than 0.5 PEI U/ml)declaimed by manufactory,and the results of S/CO between two lot kits were obvious difference (t =9.944,15.499,P ＜0.01).Conclusion C50 and C5-95 interval can be used to verify cut off value and set gray zone in chemiluminescent assay;They may vary in different lot reagents and they must be verified to approve the character declaimed by manufactory.

Adolescent ; Basal Ganglia Diseases ; Calcinosis ; Child ; Female ; Humans ; Pedigree

Objective To study the electrophysiological characteristics of early-differentiated neural stem cells(NSC)in embryonic rats.Methods NSC were isolated from hippocampus of embryonic rats and cultured.The cells were plated onto poly-llysine hydrochloride glass cover-slips for 1 h or differentiated for 1-3 d in a differentiation medium.Whole cell patch-clamp technique was used to record the voltage-gated ion channel current.Results No inward Na+ current was detected in any undifferentiated NSC.One day after induction of differentiation,the cells exhibited a voltage-gated Na+ current,but could not induce an action potential.Two types of outward K+ current(delayed rectifier K+ and transient K+ current) and inward T-type Ca2+ current were detected in NSC and early-differentiated NSC.Conclusion The functional expression of Na+ current is a marker of early differentiation of NSC following cell cycle exit.Early differentiation of NSC is an important development stage of their ion channels.

AIM:To seek a simple and reliable process for extracting effective components in Diedahuoxue film.METHODS: According to uniform design, five factors in extraction were optimized, i.e. ethanol concentration, reflux time, reflux times,ethanol volume and drug particle. The absorption value was taken as evaluating parameter in UV- spectrophotometry. RESULTS: The results showed that the best extracting conditions were 95% ethanol, ten times amount of ethanol, 0.2mm size of particle and reflux time of 1h with 4 repetitions.CONCLUSION:This process is simple and reliable.

Aged ; Anemia, Diamond-Blackfan ; complications ; Aza Compounds ; adverse effects ; Female ; Fluoroquinolones ; Humans ; Quinolines ; adverse effects ; Torsades de Pointes ; chemically induced ; complications

OBJECTIVE:To investigate the characteristics of ARDs induced by ciprofloxacin lactate.METHODS:Using philometric method,65 cases developing drug adverse reactions to ciprofloxacin lactate,reported in domestic journals during the past 2 years,were analysed.RESULTS:Of the ARDs in 65 cases,40 were allergic reactions(61.5%),13 reactions of nervous system(12.3%),3 kidney function damage(4.6%),1 liver function damage,1 cardiovascular reaction(1.5%) and 6 reactions of urinary system.CONCLUSION:The ARDs should be under consideration in choice of ciprofloxalin lactate.

Objective To explore the clinical characteristics and diagnosis of mycoplasma pneumoniae(MP) pneumonia showing lobar pneumonia.Methods Patients from Jan.2004 to Dec.2005 were selected as researching case,which had samptoms and signs of respiratory in clinic,the chest Xray shown lobar pneumonia,the MP of down respiratory′s secretion detected by polymerase chain reaction(PCR) and MP-IgM of serum detected by indirect hemagglutination were positive.The clinical data of them were reviewed.Results MP pneumonia showing lobar pneumonia was same to streptococcus pneumoniae pneumonia in clinic,but it had some characters:1.majority of the lobar MP pneumonia were children being student;2.the process was long,the samptoms of respiratory was tipical,the continuous fever was few,and the infectious samptoms was not obvious as streptococcus pneumoniae pneumonia;3.the injury to lung was more and tipical;4.the increase of white blood cell,neutrocyte and C-reactive protein were not clearly as to streptococcus pneumoniae pneumonia,but the absorbing of lung′s focal was relatively fast;5.the ?-lactams antibiotic was not effective,but macrolides was effective.Conclusions Clinical characters of MP pneumonia are needed to master,the variety of chest X-ray changes and differentiate from other pneumonia infected by other are needed to notice.

OBJECTIVETo evaluate the effects of Attractin (Atrn) silence on the anti-oxidative and anti-apoptotic abilities of TM4 Sertoli cells and its influence on the expressions of superoxide dismutase (SOD) and caspase6 in the cells.

METHODSWe observed the apoptotic indexes of TM4 Sertoli cells with normal expression (control), partial deletion, and complete deletion of the Atrn gene (psiRNA-TM4, psiAtrn-TM4, and mu-SC). We determined the mRNA and protein expressions of SOD and caspase6 by Q-PCR and Western blot, measured the SOD activity and malondialdehyde (MDA) contentby spectrophotometry, and detected the apoptotic index of the cells by TUNEL.

RESULTSCompared with psiRNA-TM4, after inhibition of the Atrn expression, the Sertoli cells in the psiAtrn-TM4 and mu-SCgroups showed significantly decreased expressions ofSOD mRNA (70.76% and 92.58%) and protein (65.11% and 71.0%) (both P < 0.05). The levels of caspase 6 mRNA and protein were increased 5.28 and 3.40 times in the psiAtrn-TM4 and 2.97 and 2.50 times in the mu-SCgroup as compared with the normal control (both P < 0.05). Atrn deletion markedly increased the apoptotic indexes of the cells in the psiAtrn-TM4 and mu-SC groups by 16.22% and 22.03% (P < 0.05) and reduced the activity of SOD by 23.00% and 39.37% (P < 0.05); it also elevated the level of MDA by 155.22% (P < 0.05).

CONCLUSIONThe Atrn gene exerts influence on the function of Sertoli cells in multiple ways, in which antioxidative stress and apoptosis regulation may play an important role.

Animals ; Apoptosis ; Caspase 6 ; metabolism ; Cells, Cultured ; Gene Deletion ; Male ; Membrane Proteins ; genetics ; metabolism ; Mice ; Oxidative Stress ; Sertoli Cells ; metabolism ; pathology ; Superoxide Dismutase ; metabolism

Objective To introduce the idea and the structure of Intelligent Outpatient Queuing System.Methods The hardware was constructed and the software was developed for the application of Intelligent Outpatient Queuing System.Results Run and debugged for one year,the system achieved anticipated results: the outpatient queuing order was effectively improved.Conclusion With a friendly interface,the system is easy to operate and suitable to the complicated situation of an outpatient department.