OBJECTIVE: To compared the similarity between Cordyceps Sinensis and Solid Fermentation of Cordyceps Militaris in chemical components by TLC. METHODS: The similarity in total constituents and different extract fractions were compared between Cordyceps Sinensis and Solid Fermentation of Cordyceps Militaris by TLC. RESULTS: Solid Fermentation of Cordyceps Militaris and Cordyceps Sinensis were basically similar in that their TLC spots occurred at the corresponding place except a slight difference in size. CONCLUSION: Cordyceps Sinensis and Solid Fermentation of Cordyceps Militaris have similar chemical constituents, which remains to be further studied.

OBJECTIVE:To establish the quality standard of Baji zhenyang tablets.METHODS:Panax ginseng,Herba Epimedii and Carthamus tinctorius in the tablets were identified by TLC,and the content of icariin in Herba Epimedii was determined by HPLC.RESULTS:The TLC spots of P.ginseng,Herba Epimedii and C.tinctorius were distinctive and well-separated.The linear range of icariin was 0.080 04～0.640 32 ?g(r=0.999 8).The average recovery was 101.29%(RSD=0.98%,n=6).CONCLUSION:The established standard is applicable for the quality control of Baji zhenyang tablets.

The paper described the necessity of establishing standardized residency training system,and introduced the progress of such training on a unified platform in Shanghai since 2010.In its summary of the success and experiences in Shanghai, the authors proposed to step up three-level management,set up a government-funded risk fund;guarantee income and welfare of residents and encourage their sense of belongings;encourage motivation of clinical teachers to enhance training quality;to build a systematic postgraduate medical education system in alignment with the standardized specialists training.

Objective To investigate the relationship between Oxfordshire community stroke project(OCSP) classification and imaging classification in acute cerebral infarction. Methods Two hundred and thirty-six patients with acute cerebral infarction were retrospectively evaluated with OCSP classification and imaging characteristics. Results According to OCSP classification,of all the 236 patients with acute cerebral infarction,28(11.9%) experienced total anterior circulation infarction(TACI),71(30.1%) partial anterior circulation infarction(PACI),94(39.8%) lacunar infarction(LACI),and 43(18.2%) posterior circulation infarction(POCI).The consistency was found in 171 cases(72.5%) between the OCSP classification and imaging classification,with the accuracy of 76%(25/33) for TACI,81%(34/42) for PACI,71%(81/114) for LACI and 66%(31/47) for POCI. Conclusion OCSP classification can predict the location and size of cerebral infarction with a high accuracy,and is well consisted with the imaging findings.

Objective To study the vascular endothelial growth factor(VEGF) expression and secretion of mesenchymal stem cells(MSCs) of rabbit transfected with pcDNA3-VEGF165 expression plasmid in order to construct a kind of tissue engineering artificial skull with more blood supply.Methods By gene reconstruction method,the VEGF165 gene was cloned into eukaryotic expression plasmid pcDNA3 and recombined eukaryotic expression plasmid pcDNA3-VEGF165 was constructed;By lipofectamine transfection method,pcDNA3-VEGF165 expression plasmid was transfected into MSCs of rabbit;By RT-PCR and Western blotting methods,the VEGF mRNA expression and VEGF protein secretion in the MSCs were detected.Results Recombined eukaryotic expression plasmid pcDNA3-VEGF165 was confirmed to be true by double enzyme digestion,two strips came to appear in 5400 bp and 600 bp of gelose electrophoresis and their sizes accorded with pcDNA3 plasmid and VEGF165 accordingly;Primarily cultured and subcultured MSCs of rabbit were successfully performed and the MSCs storehouse of rabbit was established,primary MSCs presented lymphoid form at first and then the morphology of them became circulara,polygonal or irregular forms,they were more and more like fibroblastic cells after subcultured cultivation.The expressions of VEGF mRNA and VEGF protein in the MSCs were found after transiently transfection by RT-PCR and Western blotting methods.Conclusion Recombined eukaryotic expression plasmid pcDNA3VEGF165 can be transfected into MSCs of rabbit effectively by lipofectamine and the VEGF expression can be detected in the MSCs after transfection.

Objective To observe the effect of Wenxiao Decoction in treating the patients with carotid atherosclerostic (CAS) plaque and assess the safety. Methods Sixty patients with CAS plaque were randomly allocated to treatment group (33 cases) and control group (27 cases). The control group was given routine therapy, and the treatment group was given Wenxiao Decoction additionally. And they were further divided into half-year treatment group and half-year control group, 1-year treatment group and 1-year control group. Carotid artery color Doppler ultrasound and hepatorenal function were examined before and after treatment. Results Compared with the control groups after therapy, the average numbers of plaques, maximal plaque thickness, Crouse plaque integral were decreased both in 1-year and half-year treatment groups (P<0.05, P<0.01). The plaque stability of 1-year treatment group was better than that of half-year treatment group. The average numbers of plaques, plaques size and Crouse plaque integral increased in control groups after routine therapy (P<0.05, P<0.01). Bilateral common carotid artery diameter, intima-medial thickness (IMT) and hepatorenal function had no statistical difference between before and after treatment both in treatment and control groups (P>0.05). Conclusion Wenxiao Decoction is effective and safe in treatment of CAS plaque, and plaque stability is more obvious with the extension of treatment time.

BACKGROUND: Quiet a number of researches has reported the morphological changes of global ischemic reperfusion model. However, there are few reports on the ultrastructural changes of cortex in early reperfusion, especially the change of blood brain barrier.OBJECTIVE: To explore the changes of brain cortex neurons, glial cells and blood brain barrier in order to provide reliable evidence for clinical treatment.DESIGN: A randomized and controlled trial.SETTING: Department of Neurosurgery, Departnent of Anesthesia and Electron Microscope Room of Beijing Tiantan Hospital.MATERIALS: The experiment was conducted to 6 Wistar rats in Beijing Neurological Surgery Research Institute of Capital University of Medical Sciences during February 2003 to February 2004. The rats were randomly divided into two groups with one of ischemia-reperfusion group and sham operation group with 3 rats in each group.INTERVENTIONS: To prepare global ischemic reperfusion model of rats. Brain was removed from ischemic group in one hour of reperfusion and from sham operation group one hour after the operation. Electronic microscope technique was used to observe the ultrastructural changes of cortex.MAIN OUTCOME MEASURES: Ultrastructural changes of cortex.RESULTS: The neurons of cortex shrank to certain degree in the early stage of ischemic reperfusion(1 hour) . The glial cells were swollen with dissolved chromosome in nucleus and unclear nuclear membrane. The foot protrusions around blood vessel slightly swelled and separated from basement membrane. Mircro-tubes were partially dissolved.CONCLUSION: In early stage of reperfusion injury, the cortex neurons, glial cells, cellular framework and blood brain barrier already changed which suggested that the protective treatment such as reducing brain edema, protecting blood brain barrier should start as early as possible.

Objective To investigate the therapeutic effect of lengthening and rotational osteotomy of the fibula for lateral malleolar malunion. Methods Twenty-three patients who had suffering from the traumatic arthritis of ankle were due to lateral malleolar malunion treated with lengthening and rotational osteotomy from October 2005 to July 2008. Special radiographs were use to fully detect the extent of shortening and rotation of the fibula. The Lengthening and rotational osteotomy could be conducted with a special compression/distraction device and bone graft. The function of the ankles was evaluated by the American Orthopedic Foot Ankle Society (AOFAS) scoring system. Serial radiographs of the ankle were made to assess the bone healing and changes of posttraumatic osteoarthritis. Results Seventeen of 23 patients were followed up, with a mean 29.1 months (12-45 months). All the fractures were healed. The mean bone healing time was 13.3 weeks (11-16 weeks) and the mean time of total weight-bearing was 12.1 weeks (11-15 weeks). The ankle function score had improved from 29 (21-47) preoperatively to 81 (56-91)12 months after the operation. There was 5 in excellent, 8 in good, 3 in mild, 1 in poor, and the rate of good outcomes was 76.5%. After the operation, 1 patient had a skin necrosis around the wound which healed by conservative treatment. A slightly aggravated degeneration of the ankle joint was seen in 2 patients who responded to conservative managements. No failure of the internal fixation was noted in this group. Conclusion The outcomes demonstrate that reconstructive lengthening osteotomy is well worthwhile when there is absent or minimal osteoarthritic change, regardless the time from the original injury. Lengthening of the fibula is an important step in the treatment of the painful ankle when the fibula become shorter after injury, even when degenerative changes of the joint are already present. The lengthening of the fibula could lead to a good outcome in ankle with lateral malleolar malunion.

BACKGROUND: The proliferation and differentiation of mesenchymal stem cells (MSCs) lack of regulatory functions. Following combining with suitable vectors, MSCs cannot highly effectively proliferate and differentiate, which are keys to prevent MSCs entering the clinic. It is of great importance to effectively regulate the differentiation of stem cells into osteoblasts using pulse electromagnetic field.OBJECTIVE: To investigate the differentiation of mouse MSCs into osteoblasts in vitro following stimulation of pulse electromagnetic field.DESIGN, TIME AND SETTING: The cytological in vitro controlled study was conducted at the Laboratory of Department of Orthopaedics, Puai Hospital of Tongji Medical College, Huazhong University of Science and Technology from May 2004 to October 2007.MATEIRALS: Totally 20 BALB/C mice were supplied by the Experimental Animal Center of Tongji Medical College. Pulse electromagnetic field deviser was designed and made by the Department of Electric Machine, Naval University of Engineering.METHODS: Mouse bilateral femur was sterilely isolated. BMSCs were harvested by the Percoll density gradient centrifugation,and purified and proliferated by the adherent method. Cells at the third passage (2×10~7/L) were incubated in a 6-well plate, and then divided into 4 groups. Cells in the blank control group were incubated in the complete medium. Cells in the pulse electromagnetic field underwent pulse electromagnetic field radiation of 50 Hz, sinusoidal wave, and 1 mT, twice a day, once 30 minutes, with an interval of 12 hours, totally 10 days. Cells in the osteogenic induction group were incubated in the complete medium, supplemented with dexamethasone, sodium glycerophosphate and VitC. Cells in the pulse electromagnetic field + osteogenic induction group were subjected to the same pulse electromagnetic field radiation and then incubated in the complete medium.MAIN OUTCOME MEASURES: The differentiation of BMSCs was measured.RESULTS: Results of alkaline phosphatase staining showed that cells were negative in the blank control group, but weakly positive in the pulse electromagnetic field group, positive in the osteogenic induction group, and strongly positive in the pulse electromagnetic field + osteogenic induction group 10 days following intervention. Compared with the blank control group,absorbance value of type I collagen immunohistochemistry was significantly greater in the osteogenic induction group, pulse electromagnetic field + osteogenic induction group (P < 0.05, P < 0.01).CONCLUSION: Pulsed electromagnetism fields of 50 Hz, waves of sine, with the intensity of 1 mT could promote alkaline phosphatase and type I collagen expression and enhance the differentiation of mouse BMSCs into osteoblasts in vitro.

ObjectiveTo evaluate the efficacy of biapenem in percutaneous nephrolithotripsy for the prevention and control infections.MethodsA retrospective study was accomplished.The clinical data of 68 patients with PCNL which used biapenem for prevention and control infection from Aug 2009 to Feb 2011 in the hospital of Hubei Provincial Corps of CAPF were collected,the treatment effect of biapenem in percutaneous nephrolithotripsy was evaluated.Results57 cases use the injection biapenem each 0.3g,2 times a day intravenously 7 to 14 days could effectively prevent postoperative infections in perioperative period;11 cases of urinary infection and systemic inflammatory response syndrome after pereutaneous nephrolithotripsy use injection biapenem each 0.3g,every 8-hour intravenously 7 to 14 days,were effective treatment of postoperative infections.ConclusionBiapenem was effective in the prevention of infection in percutaneous nephrolithotripsy.