OBJECTIVE:To establish a RP-HPLC method to determine concentration of cefixime in human serum.ME_ THODS:The assay was conducted on Agilent ZORBAX?SB C 18 column with methanal-water-PBS(25∶15∶60,V/V/V)as mobile phase.The detection wavelength was270nm,and the acetanilide was taken as internal standard.RESULTS:The lin?earity range was0.11～5.28mg/L with a regressive equation of Y-0.07534X-0.13186,r=0.9995.The recovery was high.CONCLUSION:This method is accurate,rapid and simple and can be used for determining the concentration of cefixime in human serum.

Aiming at the existing problem of inequality and being unscientific in the evaluation of comprehensive quality of medical students, through literature research and expert opinion method, and from multi angles , the author constructed the evaluation index system of comprehensive quality of scientific medicine, using AHP to determine the weights of evaluation indexes, and established a fuzzy evaluation model of the comprehensive quality of medical students, and on this basis, improved the calculation method of fuzzy evaluation and the maximal subjection degree of the evaluation result. The specific examples of the evaluation results showed that the method was effective and could reflect the comprehensive quality of med-ical students in a comprehensive and objective way, and it had great significance to the comprehensive quality evaluation of medical students.

Objective To investigate the correlation between MRI characteristics and tumor pathologic manifestitions of ovarian tumors.Methods 38 cases of benign ovarian tumor with clinic and MRI data were enrolled in this study.The correlation between the results of postoperative pathology and MRI characteristics was analyzed.Results 38 cases showed as ovarian tumor by MRI was diagnosed as ovarian tumor by pathology.So the accuracy of qualitative diagnosis was 100%;48 lesions were detected by surgery and pathology, of which one case had 3 lesions.The detection rate was 87.5%(42/48).Conclusion MRI is a relatively reliable method for the localization and qualitative diagnosis of ovarian tumor,which provides the guidance for surgery.

Background:Currently,chronic atrophic gastritis( CAG)is diagnosed by endoscopy combined with pathological examination. Narrow-band imaging magnifying endoscopy( NBI-ME)has been widely applied to diagnose CAG. However, it is a issue how to optimize the examination technology. Aims:To investigate the clinical value of NBI-ME in diagnosis of CAG,intestinal metaplasia and intraepithelial neoplasia. Methods:One hundred CAG patients reexamined gastroscopy were enrolled,sequential examination was performd,i. e. the extent of disease was observed under convention white light endoscopy( C-WLI ) followed by NBI-ME mode to observe locally,morphological changes of gastric mucosa pit was analyzed,endoscopic findings and histological results was compared. Results:Sensitivity of sequential examination for the diagnosis of CAG was 89. 7%,specificity was 63. 3%;sensitivity and specificity for the diagnosis of intestinal metaplasia were 89. 4%,89. 3%,respectively,for intraepithelial neoplasia were 84. 2%,95. 9%,respectively. Conclusions:Sequential examination can significantly improve the diagnostic accuracies of CAG,intestinal metaplasia and intraepithelial neoplasia,and effectively guide targeted biopsy,and easily to operate.

Objective To assess the reaching ability of hemiplegic stroke survivors using a motion capture unit (MCU) combined with surface electromyography (sEMG).Methods Sixteen stroke survivors with hemiplegia formed the experimental group,while healthy counterparts were selected as the control group.Both groups were asked to sit on a chair and reach for a cup on a table in front of their shoulder at arm's length using their affected arms in the experimental group and their right arms in the control group.MCUs were fixed on their spines and arms to obtain kinematic signals,and the sEMG signals of the trapezius,the anterior deltoids,biceps and triceps of the tested limb were recorded.Each subject repeated the test 3 times,and the best result was retained for further analysis.After signal processing,the range of movement of the shoulders and elbows was extracted along with the time used to reach the cup,peak angular velocity,time to peak velocity of the shoulders and elbows,work of the muscles and work ratios of the trapezius/deltoid and biceps/triceps.The upper limb section of the Fugl-Meyer assessment (FMA) was also administered to evaluate the patients' upper limb function.Independent sample rank sum tests compared the patients with the controls in terms of kinematics and sEMG parameters.Spearman analysis was used to explore the correlation between the FMA scores and the kinematics and sEMG characteristics.Results Significant differences in the kinematic and myoelectric indicators were found between the patients and the controls.The average FMA score of the patients was correlated with the peak velocity of the shoulder joint.Moreover,the ROM of the shoulder was closely related to the work of the trapezius,while the time for the shoulder joint to reach peak velocity was closely related to the work ratio of the biceps and triceps.Conclusion An MCU integrated with synchronous sEMG can quantitatively assess the kinematics and kinetics of hemiplegic stroke survivors,at least in reaching.This can provide objective guidance to optimize clinical rehabilitation.

OBJECTIVE:To bring the computer network into full play in effectively monitoring therapeutic recipe for patients to realize individualized administration of drugs.METHODS:According to the phasic characteristics of forming recipe, a local network model for monitoring therapeutic recipe has been set up.RESULTS & CONCLUSION:By computer and local network monitoring, the quality of prescription can be improved and individualized administration of drugs will further be achieved.

Objective To evaluate double microcatheter technique for detachable coil treatment of wide-necked intracranial aneurysms. Methods Routine endovascular coil occlusion was not achieved in 6 cases of wide-necked intracranial aneurysms. A second femoral arterial sheath was inserted on the opposite side . A second microcatheter was positioned within the aneurysm. The detachable coils were introduced via double microcatheter simultaneously or successively till the aneurysm were compactly embolized. The coils were detached after satisfactorily positioned. Results Total 6 cases of wide-necked aneurysms were successfully embolized with detachable coil. Aneurysmal sacs were 100% embolized in 2 cases, over 90% in 4 cases. 1 case suffered moderate disablement as a result of complication of. Angiographic follow-up in 5 cases revealed no recurrent or rerupture.Conclusions The double microcathter technique may be an optional method during embolization of some complicated wide-necked aneurysms.

Objective Due to the problem of individual matching, exclusivity and loose with pure mechanical fixation for artificial hemi-knee joints made by traditional method, a new manufacturing process based on rapid prototyping technique and custom-made concept is presented.MethodsRapid prototyping was processed to rapidly and accurately shape the prototype of an artificial implant almost with the same shape as the hemi-knee joint of the patient, and the process based on Titanium alloy centrifugal casting technology and biomaterial sintering molding technology was used to fabricate the artificial hemi-knee joint and bioactive proximal tibia artificial bone, respectively.Results and ConclusionThe custom-made knee joint prosthesis has been fabricated and put into clinical use successfully. In comparison with the traditional implants, this system can realize the well matching movement between the artificial hemi-knee joint and its opposite. Meanwhile,the design of functional holes and tibial nails realizes the combination of biological fixation with mechanical fixation for the artificial implant,and the use of bioactive artificial bone promotes bone growth and minimizes the exclusive reaction.

Objective To evaluate urinary β2-microglobulin (β2-MG) and retinoid binging protein (RBP) in monitoring of early renal impairment in chronic hepatitis B (CHB) patients with long-term adefovir dipivoxil (ADV) treatment. Methods Three hundred and fifty five with CHB admitted in Shaoxing Municipal Hospital from June 2009 to June 2011 were enrolled in the study, among whom 180 cases study group) were treated with ADV monotherapy (n=100) or ADV + lamivudine (LAM) combination therapy (n=80); and 175 cases (control group) were treated with entecavir (ETV). Serum creatinine, urinary β2-MG, RBP and creatinine were measured and glomerular tration rate (eGFR) was estimated regularly during 5-year follow up. Kaplan-Meier method was used to calculate the cumulative incidence of changes in urinary β2-MG and RBP. Results Five-year follow-up results showed that in study group 2, 6, 10, 14 and 24 cases developed urinary β2-MG abnormality in year 1, 2, 3, 4 and 5 of treatment, respectively; and 2, 7, 11, 16 and 20 cases developed urinary RBP abnormality in year 1, 2, 3, 4 and 5 of treatment, respectively; eGFR decreased 20%-30% from baseline in 20 cases, 30%-50% in 13 cases and >50% in 2 cases. The decrease of eGFR ≥30% in 5 years was significantly correlated with urinary RBP and β2-GM abnormality. However, both serum creatinine and eGFR remained stable during the 5 years of follow-up in control group; only 2 cases developed urinary β2-MG abnormality and 3 cases developed urinary RBP abnormality. Conclusions Urinary RBP and β2-MG are sensitive biomarkers of early renal injury during long-term ADV treatment in CHB patients, and ADV should not be used as first-line treatment for CHB.

Objective To obtain purified ClpP produced by prokaryotic expression system,and to evaluate the protection effect elicited by ClpP in animal protection test.Methods The template DNA was isolated from the culture of TIGR4 Streptococcus pneumoniae.The complete ClpP open reading frame(ORF)was cloned into pET-32a expression vector by gene recombination technology in vitro.After prokaryotic expression,purification and sequence identification,the recombinant ClpP were innoculated into mice,and at the same time a group of mice were inoculated with the antibody to ClpP.We monitored the survival time of the innoculated mice after being challenged intraperitoneally with,TIGR4.Results We obtained high-expressed recombinant antigen protein which was then identified by Western blot,and we have got the recombinant antigen protein with a purity of more than 90%after being purified through Ni2+ affinity chromatography and processed by dialysis.The sunrvival time of mice immunized with ClpP or ClpP antibody were significantly langer than that of the mice received PBS.Conclusion The recombinant ClpP antigen protein can elicit protection to the invasive S.pneumoniae infection in mice,which might make ClpP as a candidate of S.pneumoniae vaccine.