OBJECTIVE:To prepare Geinstein (GEN) solid dispersion,and improve the dissolution rate of GEN in vitro. METHODS:Using PVP K30,PEG6000,and PEG4000 as carriers,GEN solid dispersion was prepared by solvent melting meth-od,and its dissolution in vitro was investigated. The structure of the solid dispersion was characterized by FTIR and DSC. RE-SULTS:GEN solid dispersion prepared with PEG4000 as carrier was better than those with other carriers in dissolution,and drug-carrier ratio (1:5) was the best. The results of DSC and FTIR showed that GEN in solid dispersion took amorphous form. CONCLUSIONS:GEN solid dispersion is prepared successfully and significantly improve the dissolution of GEN in vitro.

Objective To investigate the therapeutic effects of modified Xiaoyao Powder combined with abdominal needling for conducting fire back to its source for the treatment of swallowing dysfunction in Parkinson's disease, and to explore a more effective therapy for swallowing dysfunction in Parkinson's disease. Methods Forty-two Parkinson's disease patients suffering from swallowing dysfunction were divided into treatment group and control group, 21 cases in each group. The patients in both groups received routine swallowing function training. In addition to the training, the treatment group was treated with modified Xiaoyao Powder combined with abdominal needling for conducting fire back to its source, and the control group was given conventional western medicine of Domperidone and Levodopa Benserazide Hydrochloride. After treatment for 3 weeks, we compared the dysphagia scores and effective rate of the two groups. Results (1) All of the patients in the treatment group completed the trial, but 2 cases of the control group dropped out. Therefore, a total of 40 cases completed the trial. (2) The dysphagia scores of the two groups were much improved after treatment (P<0.01 compared with those before treatment) , and the improvement of the treatment group was superior to that of the control group (P < 0.05). (3) After treatment for 3 weeks, the total effective rate of the treatment group was 95.24% and that of the control group was 52 . 63%, and the difference was statistically significant between the two groups(P<0.01).(4) Gastrointestinal reaction occurred in 3 cases(one from the treatment group and 2 from the control group) , but there were no other side effects found in both groups. Conclusion Modified Xiaoyao Powder combined with abdominal needling for conducting fire back to its source is more effective for the treatment of swallowing dysfunction in Parkinson's disease than routine western medicine treatment.

Objective To evaluate the efficacy of combined various surgical procedures for the treatment of post-traumatic epilepsy.Methods According to the preoperative primary location of epileptogenic focus and the monitoring results of intraoperative electrocorticography and depth electrodes,21 seizure patients were treated with various surgical procedures: 7 cases with epileptogenic focus resection,8 cases with epileptogenic focus resection combined with multiple subpial transection(MST),4 cases with anterior temporal lobectomy combined with amygdalo-hippocampotomy,1 case with selective amygdalo-hippocampotomy under neuronavigation,and 1 case with anterior callosotomy combined with MST and bipolar coagulation on funtional cortexes. Results All the patients were followed up from 3 months to 10 years postoperatively,and the surgical outcomes were such as the followings: satisfactory outcome in 9 cases(42.9%),marked improvement in 7 cases(33.3%),improvement in 3 cases(14.3%),slight improvement in 1 case(4.8%) and no improvement in 1case(4.8%).There was no died cases caused by the surgical procedures.Eight patients had temporary dysfunction after operation,but all recovered in four weeks after surgery.Conclusion The combined various surgical procedures are effective and safe for the treatment of post-traumatic epilepsy.

Objective To investigate the effect of heparin-binding epidermal growth factor-like growth factor (HB-EGF) on mitochondrial pathway of apoptosis in rats with neonatal necrotizing enterocolitis (NEC).Methods Sprague-Dawley neonatal rats were randomly divided into three groups with ten in each.NEC group rats were formula fed,and hypoxia exposed by 100％ N2 for 90 s and cold stress at 4 ℃ for 10 min twice a day for three days.Additionally,rats in HB-EGF group received HB-EGF 800μg/kg by gavage four times a day for three days.Rats in control group were given breast milk feeding for three days without any interventions.Seventy-two hours after born,all neonatal rats were sacrificed after fasting for 12 h,from which the terminal ileum was removed.HE-staining was done for histologic evaluation.Mitochondrial ultrastructure was observed under electron microscopy.Cytochrome C was detected by immunohistochemical analysis and apoptosis inducing factor (AIF) and apoptotic protease activating factor-1 (APAF-1) were measured by Western blot.Analysis of variance and q-test were used to compare the difference among groups.Results (1) The incidence of NEC in HB-EGF group was lower than that in NEC group (2/10 vs 9/10,x2 =7.27,P＜0.01).(2) In NEC group,mitochondria in epithelial cells and muscle cells of intestine were significantly swelling,appearing many electron-lucent zones in matrix.Ultrastructure of mitochondria were severely damaged.In HB-EGF group,mitochondria were less swelling and showed milder damage than those in NEC group.(3) The expression of cytochrome C in ileal tissue in NEC group was higher than that in control group (0.030±0.018 vs 0.002±0.001,q=6.15,P＜0.01).The expression of cytoehrome C in ileal tissue in HB-EGF group was lower than that in NEC group (0.014±0.018 vs 0.030±0.018,q=3.53,P＜0.05).The expression of APAF-1 and AIF in NEC group was higher than those in control group (1.364±0.299 vs 0.215±0.033,q=15.31,P＜0.05;0.181±0.050 vs0.127±0.045,q=3.71,P＜0.05).Compared to NEC group,the expression of APAF-1 was lower (0.455±0.123 vs 1.364±0.299,q=4.04,P＜0.05) and the expression of AIF was higher (0.289±0.045 vs 0.181±0.050,q=7.32,P＜0.05) in HB-EGF group.Conclusions HB-EGF could reduce the incidence of NEC in neonatal rats by inhibiting the mitochondrial pathway related apoptosis through down regulation of APAF-1.

Objective To investigate the underlying mutation in a late-onset Chinese patient with classic Bartter syndrome. Methods The mutation analysis of CLCNKB gene was performed by the PCR direct sequencing. The patient's parents and siblings were studied as well. Fifty normal volunteers were analyzed as control group. Results The heterozygous deletion mutation cDNA 753delG and heterozygous missense mutation G433E were detected in the patient. Her father was found to carry heterozygous G433E and her mother to carry cDNA 753delG mutation respectively. Her brother carried heterozygous G433E and her sister was normal. Conclusions Two mutations of the CLCNKB gene in this Chinese patient with late-onset classic Bartter syndrome are identified. The cDNA 753delG mutation has not been reported previously.

Female ; Glioma ; pathology ; Humans ; Neoplasms, Germ Cell and Embryonal ; pathology ; Ovarian Neoplasms ; pathology ; Peritoneal Neoplasms ; pathology ; Teratoma ; pathology

Hemangiopericytoma ; pathology ; Humans ; Meningeal Neoplasms ; pathology ; Tomography, X-Ray Computed

Objective To systematically evaluate the study of animal surgery course among medical students with different majors and languages so as to provide evidences for further improve-ment education quality. Methods Ten majors and two kinds of international medical students (in total of 1 105 students;2009 grade)of Southern Medical University were subdivided into five groups ac-cording to the relationship with clinical operative manipulation. Quality of experimental animal surgery education was tested respectively. Then SPSS 13.0 was used to statistically evaluate and analyze the data. Measurement data between two groups were compared by t-test,multi-group analysis of variance between groups was conducted using one-way ANOVA. Ranked data between groups were compared using non-parametric Mann-Whitney U rank sum test. Merits and demerits of the curriculum were dis-cussed by combing statistical results with in-class condition to provide evidences for further improve-ment. Results There was no significant difference between clinical group and clinical professional group in aseptic technique and operation skills (P=0.739),but scores of the two groups were signifi-cant higher than that of associate group (P=0.004). Moreover,scores of international students who passed Chinese TOEFL were significant higher than the others (P=0.001). Differences between groups existed predominantly in the animal surgical practice rather than in basic theory or knot and sterilized methods. Conclusions For students with different majors and languages,different teaching key points should be paid attention to. Basic surgery techniques might be emphasized on for students with associ-ate clinical major and foreign students with poor Chinese language.

AIM: To investigate the differentiative and apoptotic effect of CpG-oligodeoxynucleotides on HL60 cells and its mechanism. METHODS: After HL60 cells were exposed to synthetic CpG-oligodeoxynucleotides, non-CpG-oligodeoxynucleotides or ZpG-oligodeoxynucleotides for 72 hours, respectively, the inhibition of HL60 cells were detected using MTT method, NBT test was used and CD14 expression were determined. Apoptosis of HL60 cells were mensurated with flow cytometry and transmission electron microscope, and caspase 3, Bcl-2 and Bax expression of HL60 cells treated with oligodeoxynucletides were detected using immunohistochemistry. RESULTS: Treatment with CpG-oligodeoxynucleotides induced the differentiation and apoptosis in HL60 cells, but non-CpG-oligodeoxynu- cleotide and ZpG-oligodeoxynucleotide had no effect on HL60 cells. CONCLUSION: CpG-oligodeoxynucleotides can induce the differentiation and apoptosis in HL60 cells. It may provide a new approach for the immunological treatment of leukemia.

Objective To investigate the effects of electrocorticography(ECoG) monitoring in microsurgical treatment of intracranial cavernous hemangiomas(ICH).Methods Fifteen cases of ICH with secondary epilepsy were investigated from 2000 to 2005.They all had been performed ECoG monitoring during operation for determining the precise position and scope of focal epileptogenicity.Results Follow-up visit found 10 cases cured without drugs,4 cases total controlled with 1/4~1/3 quantity of premedicant,1 case had epileptic seizure by chance with drugs.Conclusion ECoG monitoring can provide the direction during the surgical procedure,and controls the postoperative epileptic seizure.