AIM To study the antiperoxide damage of injectio tanshin during dissolving thrombus to cure the acute myocardial infarction(AMI). METHODS AMI model formatted by electricity to irritate the left ventricular branch of coronary artery of open-chest rabbit,and observation aspects including electrocardiogram(ECG),cardiac output and contractility,serumal enzymatic activities and biochemistry and pathology of lipid peroxide extent of myocardial infarction zone. RESULTS By urinate kinase(UK) combining with injection tanshin,abnormal changes of ECG, descending of cardiac contractiles and cardiac output,going up of serum cardiac damage enzyme(CPK-MB and LDH),and the malondialdehyde(MDA)of serum and myocardial infarction zone could be remarkably reduced or avoided during UK dissolving the thrombus to cure AMI rabbits. CONCLUSION Injection tanshin can clearly reduce or avoid lipid peroxidation damage during UK dissolving the thrombus to cure the acute myocardial infarction.

AIM: To study the effect of Zhongjiefeng Injection(Herba sarcandrae) on mouse liver cancer H_22,and its activities on gastric cancer SGC-7901 in vitro,to find out its influence on the cell cycle. METHODS: By injecting H_22 tumor cells in vivo into mice to check its inhabition on entity and ascites tumor.MTT colorimetric method was used to study the anti-tumor activity on gastric cancer SGC-7901,then we calculated its IC_50 and applied the flow cytometry(FCM) to detect its influence of cell cycle. RESULTS: The rates of inhabition on H_22 entity tumor with three concentrations were 29.8%,36.2%,40.5%,and was the remarkable different from the model group(P

Objective To study the anti-tumor effect of Zhongjiefeng Injection in vitro and its combination with adriamycin.Methods MTT assay was adopted to determine the in-vitro anti-tumor effect,IC50 was used to measure the direct anti-tumor effect,and Jing' s formula was applied to analyze the combination of the drugs.Results Zhongjiefeng Injection can inhibit the proliferation of Bel 7402(human hepatoma cells),HCT-8(human colon cancer cells),and the IC50 was 33.13 mg/mL for Bel 7402 and 52.39 mg/mL for HCT-8 respectively.Zhongjiefeng Injection at the concentrations of 3.125,6.25,12.5 mg/mL showed an efficancy potentiation action with doxorubicin on the inhibition of HCT-8 cells in vitro,and 25,50 mg/mL showed a synergic effect on HCT-8 .Conclusion Zhongjiefeng Injection has a certain in-vitro inhibitory effect on the growth of Bel 7402 and HCT-8,its combination with doxorubicin in vitro can produce synergic effects(a simple combined or enhanced effects)to HCT-8 cells,especially high concentrations of Zhongjiefeng Injection with doxorubicin.It is suggested that Zhongjiefeng Injection in the doubled dosage may have a better synergistic effect with doxorubicin in clinical treatment of colon cancer.

Objective cyclin D1 gene plays a significant role in regulating cell cycle progression.Suppression of cyclin D1 protcin expression can effect on cellular proliferation,distribution of cell cycle and apoptosis.This study was to determine whether this effect also existed in chronic leukemia ceil line K562 by inhibiting the expression of cyclin D1 protein through RNA interference in vetro.Methods Plasmid vectors expressing small hairpin RNA (shRNA) targeting at cyclin D1 gene were constructed and transfected into K562 cells by chitosan,cyclin D1 protein was examined by using Western blot analysis.Inhibition of cellular proliferation was evaluated hy soft agar colony formation assay.The cell cycle and apoptosis were determined by flow cytometry.Results Expression of cyclin D1 protein was markedly down-regulated and capability of colony formation was suppressed after transfection with pshRNA-419 and pshRNA-575 at 48h.Down-regulation of cyclin D1 protein could effect on distribution of cell cycle arrested at G_0/G_1 phase and markedly induce apoptosis of K562 cells.But there had no above biological effects ob- served after transfection with blank vector and control vector of m-pshRNA-790.Conclusion Down-regulation of cyclin D1 expression can inhibit growth of K562 cells,and effect on distribution of cell cycle arrested at G_0/G_1 phase.The primary results suggest that cyclin D1 gene might serve as an effective target for the treatment of leukemia.

Objective:To explore the tracing effect of nano-carbon in the cervical lymph nodes of papillary thyroid carcinoma (PTC) and the guiding role of the dissection strategy of the contralateral lymph nodes.Methods:The medical records of 516 patients with PTC in Department of Endocrine and Breast Surgery, the First Affiliated Hospital of Chongqing Medical University from Jan. 2013 to Dec. 2017, including cN0 patients (436 cases) and cN1 patients (80 cases) , were retrospectively analyzed. There were 137 males and 379 females, the male to female ratio was 1.00:2.76. During the operation, nano-carbon was used to trace lymph nodes, and the number of lymph nodes in each lateral area (area II, III, IV) was collected, and the rate of black stained and non-black stained lymph node metastasis (LNM) was calculated based on the postoperative pathological results. SPSS 22.0 statistical software was used for analysis, t test was used for measurement data, and χ2 test was used for count data. Results:In 436 patients with cN0, the black-stained LNM rate in zone II ( P=0.002) , the black-stained LNM rate in zone III ( P=0.000) , and the black-stained LNM rate in zone IV ( P=0.002) were higher than those of non-black stained LNM. The rate of black-stained LNM in 80 cN1 patients (Ⅱ, Ⅲ, Ⅳ) was also higher than that of non-black-stained LNM (0.011, 0.019, 0.015) . The rate of black-stained LNM in cN0 patients affected the LNM in areas Ⅱ and Ⅳ ( P=0.000, P=0.000) . In patients with cN1, the black-stained LNM rate in zone Ⅲ had an effect on zone Ⅱ (0.030) ; it had no effect on the black-stained LNM rate in zone Ⅳ (0.315) . Conclusion:The black-stained LNM rate of the posterior zone (zone Ⅱ, Ⅲ, Ⅳ) with nano-carbon can represent the LNM rate of the lateral zone and help guide the lymph node dissection in the lateral zone. In addition, the black-stained LNM rate of zone Ⅲ can affect zone Ⅱ. The LNM rate in zone IV has the role of sentinel lymph nodes in the lateral zone.

Actins ; metabolism ; Bone Neoplasms ; blood ; complications ; diagnostic imaging ; pathology ; surgery ; Diagnosis, Differential ; Female ; Humans ; Hypophosphatemia ; blood ; etiology ; Ilium ; Mesenchymoma ; blood ; complications ; diagnostic imaging ; pathology ; surgery ; Middle Aged ; Osteomalacia ; blood ; etiology ; Phosphates ; blood ; Platelet Endothelial Cell Adhesion Molecule-1 ; metabolism ; Tomography, X-Ray Computed

Aged ; CDX2 Transcription Factor ; Cysts ; metabolism ; pathology ; surgery ; Diagnosis, Differential ; Female ; Homeodomain Proteins ; metabolism ; Humans ; Keratin-20 ; metabolism ; Mucous Membrane ; pathology ; Peritoneal Neoplasms ; metabolism ; pathology ; surgery ; Pseudomyxoma Peritonei ; metabolism ; pathology ; surgery ; Rupture ; Splenic Neoplasms ; metabolism ; pathology ; surgery

OBJECTIVE:To describe the characteristics of existing numerical methods,conclude current mainstream bio-electromagnetism simulation softwares,focusing on their different directions,and explore the developing trends of bio-electromagnetism computing platform.DATA SOURCES:A computer-based online search of Wanfang,Sciencadirect (Elsevier),and IEEE database was performed for articles published between 1999 and 2009 with the key words "bio-electromagnetism,simulation,numerical simulation,FDTD* in Chinese and English.A total of 83 articles were collected,including 28 Chinese and 55 English.Four software introduction and user manuals were manually retrieved.DATA SELECTION:Articles were screened by reading the title and abstract,and the latest relevant research literatures in the same kinds of simulation methods were included.MAIN OUTCOME MEASURES:A total of 25 articles with no related content,and 27 repetitive and outdated studies were excluded.Finally,31 Chinese and English articles were included for further analysis,involving 8 reviews and comments and 23 original articles.RESULTS:Common electromagnetic field numerical calculations include time domain finite difference method,moment method,and finite element method.Currently,the bio-electromagnetism simulation softwares used in electromagnetic radiation on organism include SEMCAD-X,FEKO,XFDTD,HFSS and GEMS.CONCLUSION:Future bio-electromagnetic computing platform is expected to integrate a variety of numerical methods to meet the research needs of a variety of simulation objects.In addition,interface facilitation of simulation and flowsheet of modeling will be the focus of future improvements.

Objective To explore the effect of preventing adhesion after the orbital blowout fracture on orbit tissue by amniotic membrane. Design Experimental study. Participants Twenty-six New Zealand rabbits. Methods Establishing rabbit orbital blowout fracture model, the right orbit of twenty rabbits was repaired by hydroxyapatite (HA) parceled of amniotic membrane, and left orbit was only repaired by HA, the orbits of the other six rabbits weren't repaired. Then we got the tissue around bone after one week and one month, and compared the difference of three groups. Main Outcome Measures Inflammatory response of tissue around bone was ana- lyzed by HE, picric acid Sirius Scarlet dying, TGF-?immunohistoehemical observation. Results One week after operation, HE and im- munohistochemistry showed that the difference was not significant in inflammatory response between experimental group and control group (P=0.351, P=0.413), and difference is significant between blank group and experimental group (P=0.012, P=0.041). One month after operation, HE and immunohistoehemistry showed that the difference was significant in inflammatory response between experimental group and control group(P=0.037, P=0.048), and there is no significant difference between experimental group and blank group(P=0.285, P=0.472). Conclusion It has an important role of anti-inflammatory and anti-adhesion in the chronic stage of inflammatory after orbital blowout fracture repaired by man-made plates of amniotie membrane.

Objective To assesse the quality of life of patients after cardiac pacemaker implantation using the Chinese version of SF-36.Methods Ninety-eight patients with permanent cardiac pacemaker implantation were investigated before and after the operation in terms of quality of life by using the Chinese version SF-36.Results Successful surgery was performed on all the 98 patients.The previous symptoms of the patients were improved to vari- ous extend after the operation.The quality of life of the patients was significantly improved after operation as demon- strated by the significant difference of the scores in 9 domains of SF-36 when compared with those before the operation (P