Objective To observe clinical efrect of treating angina pectoris with Shuxuening injection combined with western medicine.Methods 62 cases patients with angina pectoris were randomly recurited into a control group and a treatment group,The control group was treated with western medicine,and the treatment group was treated with Shuxuening injection based on the control group.The clinical effect was observed between the two groups.Results The clinical effect in the treatment group(83.9%)was significantly higher as compared to the control group(64.5%)(χ~2=2.352,P＜0.05).Conclusion The treatment of Shuxuening injection combined with western medicine on angina pectods is better than westem medicine only.

The plasticity of bone marrow stem cells is an important discovery in the field of stem cell research, which provides the possibility of bone marrow stem cells to be used for non-hematopoietic system diseases. There are rich data on bone marrow stem cells,which greatly accelerates the research on bone marrow stem cells plasticity. This article reviews the hot topics on plasticity of bone marrow stem cells.

Objective To explore the validity of oxygen atomizing inhalation pulmicort respulas combined with montelukast in treating children with asthma and its role in pulmonary function and T lymphocyte subset.Methods Totally 78 cases treated in Huizhou People's Hospital from June,2014 to June,2016 were randomly divided into observation group and control group with each group of 39 cases.The control group on the basis of routine treatment with oxygen atomizing inhalation of pulmicort 1 mg,twice daily,and the observation group based on control group added Montelukast Sodium Chewable Tablets 5 mg,once daily,one week for one course.The clinical effect,pulmonary function,and level of T lymphocyte subset were compared between two groups.Results The total effective rate in the observation group was 94.70％,which was significantly higher than control group (82.05％,P ＜ 0.05).After therapy,the symptom scores of two groups were obviously decreased compared with those before therapy (P ＜ 0.05),and those of the observation group were significantly lower than control group (P ＜ 0.05);The pulmonary function of the two groups were obviously improved (P ＜ 0.05) compared with that before therapy (P ＜ 0.05),and the levels of FEV1,FVC,and FEV1/FVC in observation group were significantly higher than control group (P ＜ 0.05);The level ofT lymphocyte subset in control group showed no statistical difference compared to that before therapy,and the levels of CD4+ and CD4+/CD8+ in observation group were obviously decreased,whereas CD8+ was increased.Conclusion Oxygen atomizing inhalation pulmicort respulas combined with montelukast could effectively increase the clinical effect on children with asthma,improve pulmonary function and positively regulate immune function,which deserves clinical expansion.

Objective To evaluate the effect and safety of ultrasound-guided pereutaneous thrombin injection for the treatment of iatrogenic femoral arterial pseudoaneurysm.Methods Thirty patients [6 male,24 female,age range 45-82 years,mean (63 ± 10) years] were found to have pseudoaneurysms confirmed by ultrasound between 1 and 7 days following femoral arterial puncture from July 2011 through July 2014.Results All patient had pseudoaneurysm thrombosis after the first procedure.Thrombin 200-1000 U (50 U/mL)was injected into the pseudoaneurysm under ultrasound-guidance,performed.One patient showed acute allergy 5 min after thrombin injection,which was relieved by anti-allergic therapy.No thromboembolic complications or infections occurred.Conclusions Ultrasound-guided pereutaneous thrombin injection is a safe and effective noninvasive method for the treatment of iatrogenic femoral pseudoaneurysm and should be considered as first-line therapy.

AIM The antisense drug design will be optimized based on bcl 2 mRNA secondary structure simulated with computer. METHODS bcl 2 mRNA second structures were simulated with computer and Mfold software, and the unstable zones on the second structure, as designing antisense zones, were selected. RESULTS Five antisense deoxynucletides were studied and evaluated with experiments of HL 60 and K562 leukemic cells. Two of them exist significant effect of inhibiting grow of HL 60 and K562 leukemic cells with dose of 10 ?mol?L -1 or more. CONCLUSION The designs with computer and corresponding software will be usefully efficient way to look for antisense drugs.

BACKGROUND:Fibroblast growth factor can promote proliferation of mesenchymal stem cells (MSCs).grew along the wall.However,there are few reports on the differentiation of MSCs into hepatocytes following fibroblast growth factor induction.When mass concentration of hepatocyte growth factor was 1 μg/L,it can promote mitosis of hepatocytes,and is the strongest mitogenic agent for normal hepatocytes.OBJECTIVE:To explore the biological characteristics of human umbilical cord MSCs/n vitro and their differentiation ability to hepatocyte-like cells under the induction of chemical factors.DESIGN,TIME AND SETTING:The cytological in vitro study was conducted at the Institute of Blood,Jinan University from August 2008 to April 2009.MATERIALS:Umbilical cord was obtained from healthy full-term fetus,which was provided by the Guangzhou Huaqiao Hospital.The parturient signed informed consent.Hepatocyte growth factor and flbroblast growth factor were bought from Peprotech,USA.METHODS:The MSCs from human cord were isolated and cultured by type Ⅳ colagenase digestion+differential adherence.At the third passage,MSCs received cell surface antigen analysis and cell cycle determination to detect their ability to differentiate into adipocytes and osteoblasts.At the fifth passage,MSCs were adjusted into 5×10~9/L and assigned into 2 groups.BMSCs in the control group were incubated in DMEM/F12 containing 5% fetal bovine serum.BMSCs in the induction group were treated with above-mentioned medium supplemented with 20 μg/L hepatocyte growth factor and 10 μg/L flbroblast growth factor.MAIN OUTCOME MEASURES:The following parameters were measured:biological characteristics of human umbilical cord MSCs and differentiation of human umbilical cord MSCs into hepatocyte-like cells in vitro.RESULTS:At the third passage,MSCs derived from human cord expressed CD29,CD44,CD105,but not antigens of hematopoietic CD34,CD45,and 92.2% of them were in G_0/G_1 phase.Oil red O staining showed cytoplasm presented red granules.Alkaline phosphatase staining demonstrated that cytoplasm was black,with the differentiation ability into adipocytes and osteoblasts.Following 10 days of combined induction of hepstocyte growth factor and fibroblast growth factor,RT-PCR and Western blot results confirmed that cells expressed alpha fetoprotein and albumin.Negative expression was found in the control group.CONCLUSION:Human umbilical cord contained plenty of MSCs,with strong potential of multi-differentiation.Umbilical cord MSCs can differentiate into hepatocyte-like cells following combined induction of hepatocyte growth factor and fibroblast growth factor.

Objective To study whether stem cell antigen-positive(Sca-1 + )cells from fetal liver can differentiate into neural cells. Methods Sca-1+ cells from male fetal liver were isolated with a magnetic cell sorting kit and transplanted into lethally irradiated female mice (2?103 cells/mouse). The donor cells and their characteristics in recipient brains were identified and detected by FISH and immunohistochemistry double-staining analysis at 2, 4, 6 months after transplantation. Results There existed many male cells in brains of female recipients, including white and gray matters, for brain, midbrain, the ependyma of the ventricular system, and the choroid plexus of the lateral ventri cle. Immunochemistry revealed that the Y chromosome-positive cells expressed many neural specific markers, including Neu N, TuJ-1 , NF-M, GFAP and so on. Statistic analysis showed that ratio of Y chromosome positive cells in brain was (4. 5 ? 0. 5) %, ratio of both Y chromosome and NeuN posi live cells (1. 2 ? 0. 3) %. ratio of both Y chromosome and GFAP positive cells (1. 0 ? 0. 2) %. There was no difference between the ratios of Y chromosome-positive cells in brains 2,4, and 6 month after transplantation. Conclusion Sca-1 + cells from fetal liver, the most of which are regarded as hemato-poietic stem cells, can differentiate into neural cells and astrocytes in the brains of adult mice and survive more than 6 months.

AIM: To determine the inhibition of VEGF small interfering RNA (siRNA) on expression of VEGF protein and SMMC 7721 cell growth. METHODS: Nine VEGFsiRNA sequences with nineteen nucleotides were designed under the assistance of computer. The inhibitory effect of VEGFsiRNA was analyzed by CCK8. The protein level of VEGF in the media was determined by ELISA. The change of cell cycle was detected by flow cytometry. RESULTS: All the VEGFsiRNA were capable of inhibiting the proliferation of SMMC 7721 cells significantly compared with control and lipofectamine control, while the inhibitory effects of VEGFsiRNA2, VEGFsiRNA4, VEGFsiRNA6, VEGFsiRNA7, VEGFsiRNA8 and VEGFsiRNA9 were better than that of antisense oligodeoxynucleotide. All the VEGFsiRNA reduced the expression of VEGF protein. The effect of VEGFsiRNA7 and VEGFsiRNA2 were the best with the inhibitory rates of 52.65% and 50.43%, respectively. VEGFsiRNAs induced the S arrest in SMMC 7721 cells. The signs of apoptosis in SMMC 7721 cells induced by VEGFsiRNA were not observed. CONCLUSION: VEGFsiRNA sequences were designed and synthesized successfully. VEGFsiRNA effectively inhibited the proliferation of SMMC 7721 cells and reduced the level of VEGF protein.

AIM: To explore the effects of the combined use of human telomerase reverse transcriptase (hTERT) gene antisense oligodeoxynucleotide (ASODN) and cisplatin on apoptosis of HL-60 cells. METHODS: PCR-ELISA was used to determine telomerase activity in HL-60 cells untreated or treated with ASODN, the expression levels of hTERT protein were assayed by immunofluorescence using fluoresce isothiocyanate (FITC) label. Apoptosis was detected by DNA electrophoresis and flow cytomertric cell cycle analysis. RESULTS: The expression levels of hTERT protein and telomerase activity in HL-60 cells treated with ASODN were shown to decrease with time, the DNA fragments were obviously found and the percentage of apoptosis cells was significantly enhanced in HL-60 cells with the combined use of hTERT ASODN and cisplatin compared with the combined use of hTERT sense oligodeoxynucleotide and cisplatin or cisplatin alone, respectively. CONCLUSION: Inhibition of telomerase activity by hTERT ASODN increases the cisplatin-induced apoptosis of HL-60 cells.

AIM: The effective antisense sequences targeted VEGF mRNA with computer software would be screened and designed, and effect of them on growth K562 cells and protein expression of VEGF were studied with experiments. METHODS: Seven antisense sequences were selected and synthesized, which consisted of 18-20 deoxynucleotide acid and were modified with phosphorothioate, according to principle of low free energy of overall △G 37 Overall. Cell growth was assayed by trypan blue dye exclusion assay and level of VEGF protien in the media was determined by ELISA. RESULTS: Six of seven sequences were capable of inhibing growth of K562 cells and downregulating the VEGF protein expression significantly, compared with Scrambed control group. It was found that there was a close correlation between low level of overall △G 37 and antisense effectiveness ( r =0 887, P