50% luminal narrowing) by rest first-pass MR imaging was 70.4%,94.2% and 78.7%,respectively.Conclusion Multimodality MR imaging in detecting the myocardial viability is superior to echocardiography,and has high coincidence with coronary angiography.

Objective To investigate the effect of Suanzaoren Decoction on hippocampus, cortex BDNF and TrKB gene expression in depression model rats. Methods Depression rat models were established by social-isolated raise and chronic stress stimulation. Suanzaoren decoction was administrated to the models. RT-PCR was adopted to detect the expression of mRNA BDNF and TrKB genes. Results The mRNA expression of BDNF and TrKB in cortex of Suanzaoren decoction high dose group、medium dose group and clomipramine group(0.213±0.094, 0.639±0.023, 1.032±0.015, 1.089±0.014, 1.580±0.012, 1.860±0.019)were all higher than the model group(0.032±0.008, 0.001±0.000), showing a significant difference among four groups (P<0.01), and the mRNA expression of BDNF and TrKB in hippocampus of Suanzaoren decoction high dose group, medium dose group and clomipramine group(0.213±0.094, 0.639±0.023, 1.032±0.015, 1.089±0.014, 1.580± 0.012, 1.860±0.019)were higher than the model group (0.021±0.015, 0.125±0.013), there was a significant difference between four groups(P<0.01). Compared with the model group, the mRNA expression of low-dose group of Suanzaoren decoction in both cortex and hippocampus of BDNF and TrKB was not significantly different to the model group(P>0.05). Conclusion Suanzaoren decoction can increase the expression of BDNF and TrKB gene, promote neuronal proliferation, and resist depression.

Abundant experiences have already been accumulated in treatment of stroke with acupuncture. Development of rehabilitation theory also brings unprecedented opportunity and challenge to acupuncture. Combined with the modern rehabilitation theory and practice, it is very helpful to deepen the understanding on treatment of acupuncture for cerebral apoplexy and enhance the therapeutic effect in clinic by studying the mechanism of acupuncture treatment, opportunity of intervention, selection of acupoints, needling manipulations and quantity of stimulations etc. Through analysis on the necessity and the way of combination of acupuncture and modern rehabilitation, it is concluded that rehabilitation evaluation, rehabilitation phases and obstacle analysis should be taken as references by acupuncturists to reinforce the therapeutic effect and creditability of acupuncture treatment on cerebral apoplexy.
Acupuncture Therapy ; methods ; Hemiplegia ; rehabilitation ; therapy ; Humans ; Stroke ; therapy ; Stroke Rehabilitation

Objective To investigate correlation between post-stroke depression (PSD) and multiple factors during onset of acute cerebral infarction. Methods Depression was measured with Hamilton Depression Rating Scales (HAMD) in 58 patients with acute cerebral infarction, and their neurological function were evaluated by neurological function defect (NFD) score. Their immunoglobulin G (IgG) index was calculated and level of nitric oxide (NO) in cerebrospinal fluid (CSF) was measured. Lesion and nature of cerebral infarction in 58 patients with acute stroke were located by CT. All the data were statistically analyzed with student-t test and ? 2 test, as well as linear regression model. Results Seventeen of 58 patients of stroke appeared PSD with an occurrence rate of 29.3%. Occurrence rate of PSD was significantly higher in patients with cerebral infarction than in those with cerebral hemorrhage  2=4.86, P

Objective To investigate the polyploid induction and identification of Nerviliae fordii for harvesting the polyploid plants. Methods The materials and methods for polyploid induction of Nerviliae fordii were screened separately by comparing the induction rates of rhizomes and bulbs under natural conditions and tissue culture environment, and by comparing soaking method with agar method. The effects of colchicine concentration ( 200, 300, 400, 300 mg/L), colchicine action time ( 7, 14, 21, 28 d), DMSO concentration ( 0, 10, 20, 40 mL/L) and KT concentration ( 0, 1.0, 2.0, 4.0 mg/L) on induction rate were observed by orthogonal design method. The polyploid induction in the treated plants was identified by morphology, cytology and chromosome methods. Results After the tissue culture rhizomes were treated with 300 mg/L colchicine, 10 mL/L DMSO, and 2.0 mg/L KT by agar method for 28 days, the polyploid induction rate arrived to 50%, showing better induction effect. The morphology of polyploid plants was characterized by giantism, and the leaf length, leaf width and plant height were respectively 152.17%, 158.67%and 60.90%of those of the diploid plants. The length, width and density of stoma of leaf epidermal cell as well as the number of chloroplast in the treated plants were 138.46%, 153.00%, 59.09% and 109.09% of those of the untreated plants. The results of chromosome identification showed that the amount of the tetraploid ( about 40) was 2 times of the diploid chromosome ( about 20) in the treated plants, proving that the achieved Nerviliae fordii was a tetraploid plant. Conclusion Polyploid plants of Nerviliae Fordii have been successfully obtained, which will supply evidence for improving species, richening seed-breeding resources, and selecting of improved seeds of Nerviliae fordii.

Objectives To observe the effect of Suanzaoren Decoction on the expression of NMDAR1, NMDAR2A and NMDAR2B RNA in cortex and hippocampus of depression model rats, and explore the mechanism of treating depression. Methods Ninty SD rats were randomly divided into blank group, model group, western medicine group, Suanzaoren Decoction high, medium and low dose group. Except the blank group, the other groups were replicated the rat model of depression in chronic stress. The treatment groups were given corresponding drugs by gavage. The expression of NMDAR1, NMDAR2A and NMDAR2B genes in cortex and hippocampus were detected by RT-PCR. Results Compared with the model group, the positive expression of NMDAR in cortex and hippocampus decreased in Suanzaoren Decoction high and medium dose group (P<0.01). The positive expression of NMDAR2A in cortex and hippocampus of Suanzaoren Decoction high, medium dose group and western medicine group decreased (P<0.05, P<0.01), the expression of NMDAR2A in hippocampus increased in Suanzaoren Decoction low dose group (P<0.05). The positive expression of NMDAR2B in cortex decreased in western medicine group, Suanzaoren Decoction high, medium and low dose group (P<0.01). The expression of NMDAR2B in hippocampus increased in Suanzaoren Decoction medium and low dose group (P<0.01). Conclusion Suanzaoren Decoction can play the role of treating depression by decreasing the expression of NMDAR1, NMDAR2A and NMDAR2B RNA in cortex and hippocampus.

Objective To reverse P-glycoprotein-mediated muhiple drug resistance using RNA interference(RNAi)in cultured rat astrocytes.Methods Astroeytes overexpressing P-glyeoprotein induced by coriaria lactone were transfected with the short-hairpin RNA expression vector-p-SIREN shuttle designed to target Mdrl mRNA.The mRNA level of Mdrl gene was evaluated by real-time PCR;the P-glycoprotein was examined by immunocytochemistry and image analysis,meanwhile the rhodamine efflux was assessed by flow cytometry.Results The astrocyte model overexpressing P-glycoprotein were established and successfully transfected with the short-hairpin RNA expression vector-p-SIREN shuttle.The mRNA level of Mdrl gene was knocked down by 67.70%(P

Objective To investigate the effect of hypoxic postconditioning and diazoxide postconditioning on the calreticulin expression during hypoxia/reoxygenation (H/R) in rat cardiomyocytes. Methods Primary cultured male SD rat cardiomyocytes were randomly divided into 6 groups (n = 8 each): control group (group C),H/R group; hypoxic postconditioning group (group HP) and diazoxide postconditioning group (group DP). Group C were cultured continuously for 2 h. Group H/R, Hp and DP were exposed to 45 min hypoxia (95% N2-5% CO2)followed by 1 h reoxygenation. In group HP, the cells were subjected to three cycles of 3 min hypoxia at 3 min intervals at the end of 45 min hypoxia before 1 h reoxygenation. In group DP, diazoxide 50 μmol/L was giyen at the end of hypoxia. Caspase-3 activity, calreticulin expression and intracellular free calcium ion concentrations were determined. Results Compared with group C, caspase-3 activity was significantly increased in the other groups,the calreticulin expression was up-regulated in group HP and DP, and the free calcium ion concentrations were increased in group H/R (P ＜ 0.05 or 0.01). Compared with group H/R, caspase-3 activity was significantly decreased in HP and DP, the calreticulin expression was up-regulated and the free calcium ion concentrations were decreased in group HP and DP (P ＜ 0.01). Conclusion Hypoxic postconditioning and diazoxide postconditioning attenuate H/R injury in rat cardiomyocytes through up-regulating the expression of calreticulin and reducing intracellular calcium overload.

Objective:To search for a method for radical resection of pancreatic and duodenal malignancy involving the mesentery root and for the long post-operation survival of patients.Methods:From Jan.2004 to Aug.2006,a total of 26(16 male and 10 female. aged 27-70)patients with pancreatic and duodenal malignancy involving the mesentery root were treated in our department.The patients included 3 with duodenal malignancy and 23 with pancreatic malignancy.Curative resection was performed by the extended pancreaticoduodenetomy(Whipple procedure)combined with mesentery root resection(MRR)for all patients.The outcomes,safety and the post-operation survival rate were analyzed retrospectively.Results:Thirteen patients were treated with Whipple procedures combined with MRR,9 were treated with partial portal vein/superior mesenteric vein(PV/SMV)and reconstruction of the vessel,and 4 patients received pre-shunt between PV and SMV with artificial vessel graft before the extended Whipple and MRR procedures.The operation time was 2.5 to 7(4.4?1.1)hour,and blood loss was 300 to 5 000(1892?1414)ml with the blood transfusion of 0 to 5 600(2 100?1 586)ml.There was no death in our group and 7(27%)had post-operation complication.The post-operation hospital stay was 10 to 30 days.The pathologic examination showed negative surgical margins for all specimens.The tumor size was 4 to 10 (6.17?2.03)cm.After a follow-up of 9 to 38 months,the pain was relieved in all patients.One of the 3 patients with duodenal adenocarcinoma had liver metastasis at 10 months after operation,and the other 2 survived 10 months and 27 months without evidence of tumor reccurence.The patient with pancreatic micro-adenocarcinoma died of local reccurence 9 months after operation.The patient with neuroendocrine carcinoma died of organ failure 24 months after operation.The patient with lymphoma have survived for 24 months after operation.The 1-year and 2-year accumulated survival rates in the 20 cases with pancreatic ductal cancer were 86.6% and 45.6%. respectively.Conclusion:The extended Whipple procedure with MRR is safe and effective.It can obtain R0 resection in patients with malignant tumors(over 5 cm in diameter)in the head,neck and uncinate process of the pancreas and duodenal.

In this study,we discussed the way of imparting the microbial knowledge and elevating non-biological student's science in public optional course "Microbes and Man" from the teaching practice.During the course,we first chose the material according to students' characteristic,and then introduced several methods like lecturing on subject,visiting factories and making microbial experiments in order to inter-est students in microbiology and get better in teaching effects.