Objective To evaluate the safety and efficacy of bone marrow cells(BMCs) transplantation on the improvement of cardiac function and myocardial perfusion in patients with old myocardial infarction. Methods and Results A total of 10 patients with anterior wall myocardial infarction were transplanted with autologous mononuclear BMCs through an infusion catheter which was placed with the tip in the left anterior descending coronary artery after coronary angiography and interventional therapy if necessary. After 3 months of follow-up, a significant increase of left ventricular ejection fraction(LVEF) determined by ultrasonic cardiography was found (54.5%?6.5% vs. 45.3%?9.8% before transplantation, P=0.003); 201-thallium scintigraphy (SPECT) showed that ventricular myocardial perfusion was significantly improved as the semiquantitative score of the immediate and delayed myocardial perfusion defects decreased from 29.5?5.8 and 28.6?6.3 to 23.9?5.7 and 23.0?6.1prospectively (both P

0.05) in the BMT group but significantly enlarged in the CON group (50.4?6.0 mm vs. 55.2?7.1 mm, P

Objective:To explore the correlation with neonatal congenital cytomegalovirus infection,maternal primary infection and secondary infection.Methods: 48 neonates with congenital CMV infection were assigned to infection group with their mothers.And the other 30 couples without congenital CMV infection were assigned to negative group with their mothers.The level of CMV-IgM/IgG and affinity of CMV-IgG in peripheral blood were tested by CLIA,and CMV-DNA in mother′s milk,peripheral blood and urine of the newborn was tested by fluorescent quantitation PCR.We also analyzed the differences of the test results between the two groups and performed a retrospective analysis to compare the levels of CMV-IgG of the mother with early pregnancy with the result of this test.Results: In the infection group,the level of CMV-IgG in peripheral blood and CMV-DNA in milk was significantly higher than those in the negative group,the difference was statistically significant(P<0.01).Ratio of CMV-IgG antibody in newborn babies and their mothers in the infection group was lower than the other group,the difference was statistically significant(P<0.01).There was negative correlation of IgG level between the newborn babies and their mothers in the infection group,the difference was statistically significant(P<0.01);While in the positive correlation in the negative group,the difference was statistically significant(P<0.01).The CMV-IgG concentrations of the mothers with early pregnancy was significantly lower than that of this infection group,the difference was statistically significant(P<0.01);but in the negative group,there was no significant difference between the CMV-IgG level of the mothers with early pregnancy and the results of this test(P>0.05).Conclusion: It is a high-risk factor for neonatal congenital cytomegalovirus infection that CMV-IgG level of the pregnant women is promted by the reactivation or reinfection of cytomegalovirus.It is important to monitor CMV-IgM/IgG during pregnancy.

Objective:To investigate the causes of false-positive anti-HCV in non-syndromic cleft lip and palate with serum chemiluminescence test. Methods:We performed a hospital-based,case-control study of 4 050 patients with non-syndromic cleft lip and palate and 8 547 control patients without cleft lip and palate to evaluate associations between positive anti-HCV and non-syndromic cleft lip and palate. CLIA test were used for detect anti-HCV in control group. RIBA and FQ-PCR were used for confirming the result of the positive samples of CLIA test. CLIA test were used for detect anti-HCV in case group until CLIA test was negative. IgG,RF and ANA were used for case-control comparisons. Results:The detection rate of anti-HCV were higher in the case group than that of control group (P<0. 05). The false-positive rate was 1 percent based on testing of 4 050 patients. These samples were negative after opration 1-19 months. There were no change among IgG, RF and ANA in the false-positivepatients. Conclusion: False-positive anti-HCV in non-syndromic cleft lip was possible associated with abnormal plasma metabolic product. It can be excluded by track monitoring.

Objective To describe the clinical characteristics,outcome and prognostic factors of primary intraspinal tumor treated with postoperative radiotherapy.Methods Thirty-three patients diagnosed as suffering from intraspinal tumor treated with postoperative radiotherapy were analyzed.There were eighteen male and fifteen female,with a median age of 37 years(range 7-64 years).Two patients were treated with grossly total resection,25 subtotal resection,2 biopsy only.These patients were treated either with(~(60)Co)(n =18,before 1998) or 6?MV-X ray(n =15,after 1998) to the total dose of 45-68?Gy.The overall response and survival rates were calculated by Kaplan-Meier method and the difference between groups was tested by the log-rank method.The prognostic factors related to the characteristics of patient,tumor,and treatment were determined.Results The overall response,five-year and disease-free survival rate was 81.3%,59.4% and 56.3%,respectively.By multivariate analysis,the histological type(P= 0.039) and gender(P= 0.049) had independent impact on the 5-year survival rate.Ependymoma had a better prognosis compared to other histological subsets and female gained more survival advantage over male.There was no close relationship between survival and other factors,such as age,extent of surgery,initial site,irradiation dose,or the interval between surgery and radiotherapy.Conclusions Postoperative radiotherapy is safe and effective for primary intraspinal tumor.The histological type and gender are important prognostic factors of survival in primary intraspinal tumors.

Comparison of assays of immunoreactive insulin (IRI) and specific insulin in evaluating islet β cell function and insulin sensitivity suggested that there were no significant differences in individuals with different glucose tolerance impairment by two assays. The evaluation of islet β cell function using IRI and insulin sensitivity is still valid in clinical practice.

The curriculum of oncology radiotherapy covers basic radiology,clinical oncology and other aspects.With the development of new radiation therapy technology and the extensive application of computer technology in the field of radiotherapy,the traditional lecture-based teaching model has not adapted to the rapid development of the needs of oncology radiotherapy any more.Teachers in the first affiliated hospital of Soochow university integrated computer multimedia with problem-based learning in the teaching of oncology radiotherapy.With those innovations,the quality of teaching as well as the creative and self-learning abilities of students have been enhanced.

BACKGROUND: Ketamine is a kind of frequently used general venous anesthesia drug in clinic, and the medication in vein or epidural cavum has analgesic effect. It is N-methyl-D-aspartic acid (NMDA) receptor noncompetitive antagonist, which can inhibit toxic effect of excitatory amino acids.OBJECTIVE: To observe effect of ketamine on apoptosis of dorsal horn astrocytes of spinal cord of rats induced by NMDA receptor over activation and explore its possible mechanism of action.DESIGN: Randomized controlled observation.SETTING: Department of Anesthesiology, Taihe Hospital Affiliated to Yunyang Medical College.MATERIALS: The experiment was conducted at Cell Biology Laboratory,Institute of Basic Medical Sciences, Yunyang Medical College between September 2003 and January 2005. Neonatal Wistar rats of two or three days were provided by Animal Experimental Center of Wuhan University. METHODS: Primary astrocytes in dorsal horn of T11-L6 spinal cord of Wistar rats were purified and cultured. Astrocytes were used in the experiment when its purity coefficient reached 98% assessed by gial fibrillary acidic protein. The cultured cells in 24-well plates were divided randomly into 6 groups (9 portions in each group): ①50 μL Hanks liquor was added into the control group. ②Amount of 100μmol/L was added into the NMDA group. ③Amount of 1 mmol/L was added into the ketamine group. ④100μmol/L NMDA + 0.1 mmol/L ketamine group. ⑤100 μmol/L NMDA + 0.5 mmol/L ketamine group. ⑥100μmol/L NMDA + 1 mmol/L ke tamine group. 1 mmol/L ketamine was clinical antalgic dosage. Activity of superoxide dismutase (SOD) and content of malondialdehyde (MDA) were examined after 24-hour culture. Content of Bcl-2 protein and change of morphology were observed with immunocytochemistry. Apoptosis of astrocytes was measured with flow cytometry. MAIN OUTCOME MEASURES: ① Counterstain cell staining and changes of morphology of Bcl-2 protein with immunohistochemical method and hematoxylin-esoin staining (HE). ②Apoptosis of astrocytes was detected with flow cytometry. ③Content of MDA and activity of SOD.RESULTS: ①Mean absorbance (A) of Bcl-2 as expression of Bcl-2 protein measured semiquantitatively: It was lower in the 100μmoL/L NMDA group than the control group, which had significant difference [0.054±0.021,0.108±0.039, respectively, P＜0.01]. It was higher in the 100 μmol/L NMDA + 1 mmol/L ketamine group than the 100 μmol/L NMDA group,which had significant difference [0.148±0.045, 0.054±0.021, respectively,P ＜ 0.01]. ②Apoptosis of astrocytes detected with flow cytometry: It was higher in the 100μmol/L NMDA group than the control group, which had significant difference [(25.26±6.13)%, (5.66±2.24)%, respectively, P＜0.01].It was lower in the 100μmol/L NMDA + 1 mmol/L ketamine group than in the 100μmol/L NMDA group, which had significant difference[(24.41±4.82)%, (25.26±6.13)%, respectively, P＜0.01]. ③Content of MDA and activity of SOD: 100 μmol/L NMDA made the content of MDA in astrocytes obviously increase , while the activity of SOD markedly decrease. 1 mmol/L ketamine remarkably decreased the content of MDA, distinctly increased the activity of SOD. This effectiveness had evidently dosage-effect relationship in clinical antalgic dosage, which had obviously difference as compared with that of the NMDA group (P ＜ 0.01 ). The differences between the 1 mmol/L ketamine group and the control group as well as between the 100 μmol/L NMDA + 0.1 mmol/L ketamine group and the NMDA group had insignificant difference.CONCLUSION: NMDA receptor over activation can induce apoptosis of a great number of astrocytes in spinal dorsal horn of rats. Suitable ketamine dramatically inhibits apoptosis, and its mechanism can enhance the expressionof Bcl-2 protein of astrocytes, at the same time inhibit the production of free radical and reinforce the activity of SOD.

Objective To investigate the effect of stellate ganglion block ~SGB) on formalin-induced nociceptive behavior of rabbits, the expression of brain-derived neurotrophic factor ~BDNF) of dorsal root ganglia ~DRG) and the concentration of serum interleukin-8 ~IL-8) in rabbits. Methods Twenty-four rabbits were used in this study. Catheters were inserted closely to right stellate ganglia of the animals, which were randomly divided into control group ~A), SGB group ~B) and pain model group ~C). Group B and C were administered with an injection of 0.5ml of 3% formalin into the right front paw subcutaneously, group A 0.5ml saline by the same way. 0.5ml of (0.25)% bupivacaine was administered via the catheter in group B at 10 minutes before injection, while group A and C were given 0.5ml of saline at the same time. Nociceptive behavior was observed for 60 minutes after injection, and assessed by weighted pain score. Serum IL-8 was measured radioimmunologically at 10 minutes ~T_0) before injection, 10 ~T_1), 60 ~T_2) and 120 minutes ~T_3) after injection. The expression of BDNF in the right DRG of cervical 7, 8 and thoracic 1 was investigated immunohistochemically at 120 minutes after injection. Results Formalin-induced nociceptive behavior in phase Ⅱ was relieved following SGB. The concentration of serum IL-8 in groups B and C at T_2 and T_3 was significantly increased than that at T_0 and T_1~P

Objective To evaluate the effect of cell-penetrating peptide (protein transduction domain 4,PTD4) mediated copper-zinc superoxide dismutase (Cu/Zn SOD) on hypoxia/reoxygenation injury (HRI) in rat myocardial cells.Methods Rat myocardial cell H9C2 HRI model was prepared by using the anaerobic incubator (85% N2,10% H2,5% CO2).The HRI group (without adding any treating factor in HRI cell culture fluid),HRI+Cu/Zn SOD group (adding 10 μmol/L Cu/Zn SOD) and HRI+PTD4-Cu/Zn SOD group (10 μmol/L PTD4-Cu/Zn SOD) were set up.In addition,normally cultured myocardial cells served as the normal control group.After incubating for 30 min,the ultra microstructure of mitochondria was observed under transmission electron microscope.The mitochondrial membrane potential was detected by JC-1 kit.The myocardial cell apoptosis was detected by TdT mediated dUTP nick end labeling TUNEL technique.Results The mitochondria injury degree after 30 min incubation in the PTD4-Cu/Zn SOD group was significantly improved compared with the HRI group.Compared with the normal control group,the mitochondrial membrane potential in the HRI group was significantly decreased,while the mitochondrial membrane potential in the PTD4-Cu/Zn SOD group was lower than that in the normal control group,but compared with the HRI group,which was obviously recovered.The cardiomyocyte apoptosis in the HRI+PTD4-Cu/Zn SOD group was (10.20±2.77)%,which was significantly decreased compared with (28.40±2.41)% in the HRI group,the difference was statistically significant (P<0.05).Conclusion PTD4 mediated Cu/Zn SOD can attenuate HRI in rat myocardial cells.