Objective To study the effect of low-dose cyclosporine combined with danazol on chronic aplastic anemia,and to analyze the influence on peripheral hemogram.MethodsRetrospectively analyzed the clinical data of 68 patients with chronic aplastic anemia treated from July 2014 to June 2016 in the second hospital of shandong university,according to their treatment methods were divided into control group and observation group,the control group was given conventional dose of cyclosporine combined with danazol,the observation group received low-dose of cyclosporine combined with danazol,four weeks for a course of treatment.After two courses of treatment,observe the curative effect of two groups,the difference of bone marrow,peripheral blood,immunoglobulin levels before and after treatment were compared in the two groups.Results The effective rate of the observation group was 96.97％,which was significantly higher than that of the control group 77.14％(F=6.563,P=0.028).After treatment,the bone marrow of the observation group was significantly improved compared with the control group(P<0.05); the levels of T-bet,GATA-3 and STAT4 of the observation group were lower than those of control group(P<0.05),the levels of WBC,Hb,PLT and RET were higher in the observation group than in the control group(P<0.05); there was no significant difference in serum immunoglobulin level between the two groups after treatment,there was no significant difference in the incidence of liver and renal function,gastrointestinal reaction,hairy and acne between the two groups.Conclusion Low-dose cyclosporine combined with danazol has better therapeutic effect in the treatment of chronic aplastic anemia,can significantly improve the hemogram and myelogram of patients,has good clinical value high security.

Objective To assess the left ventricular(LV)segmental function by velocity vector imaging(VVI)in uremic patients with diffferent quantity of parathyroid hormone(PTH).Methods Sixty patients with uremia were divided into 2 groups according to the value of PTH:group A with PTH less than 3 times of upper normal limit,group B with PTH more than 3 times of upper normal limit.Normal control group was 30 healthy subj ects.All people were evaluated by VVI.The parameters,including the longitudinal systolic strain rate(SSR),diastolic strain rate(DSR),were analysed among the three groups.Results Compared with normal group,in group A and B,SSR,DSR in all segments were lower.Compared with group A,in group B,DSR were all significantly lower(P＜0.05),SSR in apex of laternal wall,medium of anterior septum wall,posterior wall,medium and apex of posterior septum wall and superior wall,base,medium and apex of anterior wall were significantly lower(P＜0.05).There was no statistically significant difference of left ventricular ejection fraction between the two groups(P＞0.05).Conclusions VVI is a viable objective tool to quantitatively assess LV segmental function damaged by different quantity of PTH.

Objective To investigate the effects of paravertebral injection of different concentrations of adriamycin on motor conduction function in rats. Methods Eighty healthy male Wistar rats weighing 250-300 gwere randomly divided into 4 groups (n = 20 each): 3 adriamycin groups receiving paravertebral injection of 0.3%, 0.5% and 1.0% adriamycin 10 μl respectively (group A1, A2, A3) and control group (group C)receiving equal volume of normal saline (NS) instead of adriamycin. The animals were anesthetized with intraperitoneal 3% pentobarbital 40 mg/kg. A right paramedian incision was made in the back from L3 to S1.L4,5,5,6 intervertebral foramina were exposed. 0.3%, 0.5% and 1.0% adriamycin and NS 10 pl were injected into the intervertebral foramina in group A1, A2, A3 and C respectively. Spinal motor evoked pontential (SMEP)was measured at 1, 2, 4 and 8 weeks (T1-4)after paravertebral injection. Results The latent period of SMEP was significantly prolonged and the amplitude decreased at T1-4 in group A3 as compared with group A1, A2 and C.Conclusion Paravertebral injection of 1.0% adriamycin can significantly depress motor conduction function.

Objective To explore the reason of serious interference red blood cell(RBC)parameters in blood routine test and correct method.Methods 30 cases of patients whose results of blood routine RBC parameters obviously abnormal ,According to the interference factors were divided into four groups:cold agglutination (7 cases),severe hemolysis(13 cases),high triglycerides (8 cases),high white blood cell(WBC)(2 例).Take appropriate corrective action for processing respectively.The difference of red blood cell parameters were compared with t test.Results To analysis of interference factors and take appropriate corrective meas-ures,RBC parameters could be more close to the real results.Conclusion We should pay attention to the changes of the RBC pa-rameters,analysis of interference factors,and to take appropriate measures to correct,in order to avoid clinical misdiagnosis and mi-stherapy.

Objective To explore the feasibility of using the quantitative reference extract of ginkgo leaf total lactones instead of single component reference for the quantitative assay of Ginkgo Folium.Methods HPLC-ELSD method was performed by using a Diamonsil C18 column (250 mm×4.6 mm,5 μm) with methanol-water as the mobile phase at the gradient elution mode.Flow rate was 1.0 mL·min-1.The parameters of ELSD detector were as follows,the drifit tube temperature was 105 ℃,and the flow rate of nitrogen(N2) was 3 L·min-1.Results The linear ranges of ginkgolide A,ginkgolide B,ginkgolide C,and bilobalide were 0.735-5.879 μg (r=0.999 6),0.404-6.060 μg (r=0.999 6),0.296-4.439 μg (r=0.999 6),and 1.001-6.006 μg (r=0.999 7),respectively.The recoveries and RSD of the four components were 95.6% (4.0%),97.3% (4.5%),99.3% (5.0%),and 100.4% (2.1%),respectively.Conclusion The quantitative reference extract of ginkgo leaf total lactones can be used as the substitute for the determination of terpene lactones.

Objective To explore the molecular and cytogenetic abnormalities in multiple myeloma (MM).Methods The la-boratory data of bone marrow smears were retrospectively analyzed in 61 patients of MM.24 hours short-term culture of bone marrow and R banding technology were performed in 31 patients.Among these patients,10 cases were selected for de-tecting the IgH gene expression by the interval FISH method.Results The proportions of myeloma cells were 0.19~0.94 in bone marrow smears of 61 patients.In 31 patients,25 patients had enough metaphases for analysis,in which 19 cases (71.3%)had abnormal clones,8q24,11q13,13q14 and 17p13 were important structural abnormalities,where 14q32 rear-rangement was the most characteristic abnormal structure,6 patients were detected IgH gene rearrangement.Conclusion Bone marrow smear combined with other laboratory examinations could make the diagnosis of MM,chromosomal abnormali-ties may help to explore the pathogenesis of MM,and provide a theoretical basis for the early diagnosis,treatment and prog-nosis of this disease.

Objective To analyze the implementation effect of formative assessment in nutri-tion and food hygiene. Methods 55 students of Class One from grade 2010 majoring in preventive medicine were taken as the control group, with 56 students of Class Two as the experimental group.The control group used the summative assessment , while the experimental group used the formative assessment. Results were analyzed by course examinations and questionnaire surveys. SPSS 17.0 soft-ware was used and the measurement data were expressed by x±s. Statistical analysis was performed using t test, test, rank sum test, a Yuan linear correlation analysis, with the level of test α=0.05. Results The experimental scores and final scores of experimental group students were significantly higher than the control group and the difference was statistically significant(P values were 0.001, 0.000). The experimental group's overall result is closer to the negative skewed distribution. The ex-perimental group's average score of 89 points is significantly higher than the control group's average score of 79 points(P<0.01), and the usual results and the final results were positively correlated(r=0.865, P<0.001). The survey indicated that the students recognized the application of formative assess-ment in teaching process . Conclusion Formative assessment can help improve the teaching and learning quality in nutrition and food hygiene.

Objective To systematically review the efficacy of pregabalin in patients with post-herpetic neuralgia.Methods A comprehensive search was undertaken to identify all randomized placebo-controlled trials of pregabalin in patients with post-herpetic neuralgia.Medline,Web of Science,Cochrane Library,Wanfang Database and CNKI were searched from January 1966 up to December 2008.The modified Jadad scale was used for quality assessment.Numerical rating scale ( NRS),effective analgesia rate and the incidence of adverse effects were taken as main outcomes.Meta-analysis was conducted using the Cochrane Collaboration Review Manager 4.2 software.Results A total of four studies involving 1024 patients were included in this meta-analysis.The modified Jadad scale scores for the 4 studies were ≥ 4.The NRS scores were significantly lower,while effective analgesia rate was higher in groups 150,300,600 mg/d than placebo-controlled group (P ＜ 0.05).There were no significant differences in NRS scores and effective analgesia rate between 150 mg/d and 300 mg/d groups.The NRS scores were significantly lower in 600 mg/d group than in 300 mg/d group,but there were no significant differences in effective analgesia rate between 600 mg/d and 300 mg/d groups.The most frequent adverse effects were dizziness,somnolence,peripheral edema,and headache.Most of the adverse effects were mild or moderate in intensity.The occurrence of adverse effects appeared to be dose-related.Conclusion Pregabalin is effective and safe in patients with post-herpetic neuralgia,but the efficacy of reducing pain is not a dose-dependent manner.

Objective To evaluate the histologic changes of dorsal root ganglion (DRG) and pain threshold following implantation of iodine-125(125I) seeds in the lumbar intervertebral foramina in rats.Methods Thirtysix adult male SD rats aged 6 months weighing 220-250 g were randomly assigned into 3 groups (n =12 each):group sham operation (group A) and groups low and high radioactive 125I seeds (groups B and C).125I seeds of 0.4 and 0.8 mCi were implanted in L4,5 and L5,6 intervertebral foramina in groups B and C respectively.Paw withdrawal threshold to von Frey filament stimulation (MWT) and paw withdrawal latency to thermal nociceptive stimuli (TWL) were measured 2 days before (T1,baseline) and at 2,7,14,30 and 60 days after implantation (T2-6) in 6 animals in each group.The remaining 6 animals in each group were sacrificed at 14 and 60 days after 125I seeds implantation for microscopic examination of L5 DRG.Results MWT and TWL were significantly decreased after 125I seeds implantation at T4 compared with the baseline values at T1 in both groups,and returned to the baseline in group B and were significantly increased in group C at T6.The neurons were severely injured in DRG in groups B and C in a time-and dose-dependent manner.Conclusion Implantation of 125I seeds in intervertebral foramen can induce radiation resection of DRG.

Objective To evaluate the efficacy of lumbar discectomy,radiofrequency ablation and annuloplusty performed with Disc-FX system under the guidance of C-arm in treatment of discogenic low back pain.Methods Twenty-eight patients with discogenic low back pain,with VAS score greater than 7,aged 27-73 yr,underwent lumbar discectomy,radiofrequency ablation and annuloplusty performed using Disc-FX system under the guidance of C-arm.The patients were followed up for 2 months after surgery and pain was assessed using VAS score.VAS scores were recorded before surgery,and at 7 and 14 days and 1 and 2 months after surgery.The effective analgesia was recorded according to VAS scores.The therapeutic effect was evaluated according to Macnab standard 2 months after surgery.Results VAS scores were significantly lower at each time point after surgery than before surgery (P ＜ 0.05).The rate of effective analgesia was 93 % at 2 months after surgery.The excellent and good rate of the therapeutic effect evaluated was 93 %.One female patient developed injury to lumbar venous plexus,and no patients developed infection of intervertebral disk,nerve root injury or spinal cord injury.Conclusion The excellent and good rate is 93 % when lumbar discectomy,radiofrequency ablation and annuloplusty performed using Disc-FX system is used for treatment of discogenic low back pain under the guidance of C-arm,with fewer side effects.