Objective:Toclone the OPGgene ofhuman beingand construct its recombinant adenovirus and then observe its effects on the differentiation of bone marrow stem cells(BMSCs).Methods:The cDNAs of human OPG in hepatic tissue were obtained by using RT-PCR method.The cDNAs then were recombined with competent homologous cells to form the AdOPG and the shuttle vector was used during this stage.The rabbit BMSCs were isolated and cultured in vitro,and were infected with AdOPG.The OPG expression of BMSCs was identified by RT-PCR and Western blot.The expression of ALP was detected by chromatometry and ALP dyeing five days after the infection.Results:The OPG gene of human being was successfully cloned and its sequence consistent with the Gene bank.The titre of constructed AdOPG can reach 109 efu/ml.The ALP activity of BMSCs was(21 024?507)IU five days after the infection of AdOPG,whereas the value was(3 079?89)IU in the control group and(2 156?78)IU in the blank control group.Conclusion:The OPG can induce the osetogeinc differentiation of BMSCs.

Biorefinery that utilizes renewable biomass for production of fuels, chemicals and bio-materials has become more and more important in chemical industry. Recently, steam explosion technology, acid and alkali treatment are the main biorefinery treatment technologies. Meanwhile, low temperature plasma technology has attracted extensive attention in biomass refining process due to its unique chemical activity and high energy. We systemically summarize the research progress of low temperature plasma technology for pretreatment, sugar platflow, selective modification, liquefaction and gasification in biomass refinery. Moreover, the mechanism of low temperature plasma in biorefinery and its further development were also discussed.
Biomass ; Biotechnology ; methods ; Biotransformation ; Chemical Industry ; Cold Temperature ; Plasma Gases

Gene Expression Profiling ; Humans ; Laser Therapy ; Lung Neoplasms ; genetics ; Microdissection ; methods ; RNA, Neoplasm ; isolation & purification

Objective To observe the expression of intercellular adhesion molecule 1(ICAM-1)and vascular cellular adhesion molecuh 1(VCAM-1)in placenta in patients with hypertensive disorders in pregnancy,investigate their roles in patients with hypertensive disorders in pregnancy and correlation.Methods Fifty-two patients with hypertensive disorders in pregnancy(disease group)were collected,including 11 csses with gestational hypertension(GH),18 cases with mild pre-eelampsia(MP)and 23 cases with gevere pre-eclampsia(SP),26 cases of normal pregnant women as control group.Immunohistochemistry and image analytical technique were employed to show the expression of ICAM-1 and VCAM-1.Results The quantities of ICAM-1 and VCAM-1 expressed in the placental vascular endothelial cell were 78.85%(41/52)and 75.00%(39/52)in disease group,26.92%(7/26)and 23.08%(6/26)in control group,there was a significant difference between the two groups(P<0.01).and those in SP patients[100.00%(23/23)and 100.00%(23/23)]were higher than those in MP patients[77.78%(14/18)and 72.22%(13/18)]and GH patients[36.36%(4/11)and 27.27%(3/11)](P<0.05 or<0.01).The quantities of ICAM-1 and VCAM-1 expressed in the placental villous syncytlotrophoblast were cell 38.46%(20/52)and 44.23% (23/52)in disease group,100.00%(26/26)and 96.15%(25/26)in control group,there was a significant difference between the two groups(P<0.01),and those in SP patients[8.70%(2/23)and 13.04%(3/23)]were lower than those in MP patients[44.44%(8/18)and 50.00%(9/18)]and GH patients[90.91%(10/11)and 100.00%(11/11)](P<0.05 or<0.01).Conclusion Abnormal expression of ICAM-1 and VCAM-1 in the placental vascular endothelial and villous syncytiotrophoblast cell in patients with hypertensive disorders in pregnancy may participate in pathogenic process of vascular endothelial damage of hypertensive disorders in pregnancy.

Objective To compare the influences between bronchial blocker (BB) and double lumen tube (DLT) in respiratory mechanics and blood gas in one lung ventilation. Methods Thirty-six patients undergoing pulmonary lobectomy or radical operation of esophageal carcinoma were randomized into group BB (17 cases) and group DLT (19 cases). In group BB,BB was intubated under the guidance of a fibreoptic bronchoscope after intubation of single lumen tube; while in group DLT, the position of the tube was confirmed using fibreoptic bronchoscopy after intubation. The peek airway pressure (Pmax) and pulmonary dynamic compliance (CLdyn) during double lung ventilation and one lung ventilation were recorded in recumbent position. Blood samples were taken from, radial artery 20 min after one lung ventilation for blood gas analysis,partial pressure of oxygen in artery(PaO2), partial pressure of carbon dioxide in artery(PaCO2), saturation of arterial blood oxygen (SaO2) were recorded. Results No significant difference was found in Pmax and CLdyn between two groups during double lung ventilation,but Pmax was significantly lower in group BB [(21.00 ± 3.59) cm H2O,1 cm H2O = 0.098 kPa] than that in group DLT [(26.89 ±4.21) cm H2O] (P＜0.05), and CLdyn was greater in group BB [(28.10 ±6.24) ml/cm H2O] than that in group DLT [(24.00±7.13) ml/cm H2O ] (P ＜ 0.05); there were no significant differences in PaO2, PaCO2, SaO2 betweentwo groups during one lung ventilation (P＞ 0.05). Conclusion The influence to respiratory mechanics in one lung ventilation is smaller using BB than using DLT, BB has blocker well applicable value in clinics.

Objective To explore the perioperative nursing of elderly patients undergoing esophageal hiatal hernia repair with laparoscope. Method Twenty elderly patients undergoing esophageal hiatal hernia repair with laparoscope were managed with holistic nursing and the key nursing points were summarized. Results After operations, 3 of them contracted with dysphagia, 5 with weakened gastrointestinal motility, 6 with pulmonary infections, 3 with dyspnea and 1 with thrombus in the deep veins of lower extremities. All the 20 patients got recovered successfully after pertinent treatments. 3 months follow-ups showed the clinical symptoms disappeared and barium meal showed no relapse of hernias. Conclusion Strengthened perioperative nursing of operations on esophageal hiatal hernia is beneficial for postoperative recovery and reduction of postoperative complications.

Objective: To explore the relationship among advancod aged hypertension,unstable angina pectoris (UAP)and high homocysteine (Hcy)level.Methods:A total of 208 advanced aged patients with hypertension and angina pectoris,who were diagnosed and treated in our department of cardiology,were divided into H-type hyper-tension group (n=102)and general hypertension group (n=106).Each group was further divided into UAP sub-group and stable angina pectoris (SAP)subgroup.Levels of Hcy,blood glucose,total cholesterol (TC),high densi-ty lipoprotein cholesterol (HDL-C)and triglyceride (TG)were measured;Gensini scoring system was used to score extent of coronary artery lesion in these patients.Results:Compared with general hypertension group,there were significant rise in incidence rate of UAP (25.47% vs.46.08%)and Gensini score [(30.2±15.6)scores vs.(46.1 ±18.7)scores]in H-type hypertension group,P <0.05;in H-type hypertension group,Hcy level in UAP subgroup was significantly higher than that of SAP subgroup [(22.8±7.2)μmol/L vs.(13.1±2.7)μmol/L],and percent-age of paitents with high Hcy level in UAP group was significantly higher than that of SAP group,P <0.05 all;in general hypertension group,compared with SAP group,there were significant rise in levels of Hcy [(7.1 ± 1.5)μmol/L vs.(9.2±2.8)μmol/L]in UAP group,P <0.05 ;Logistic regression analysis indicated that for advanced aged UAP patients,Hcy is an independent risk factor of UAP (OR=1.9,95%CI:1.1~3.0,P =0.03).Conclu-sion:UAP incidence rate of H-type hypertension patients significantly rises than that of general hypertension pa-tients,Hcy is an independent risk factor of UAP.

OBJECTIVE:To observe the clinical effect of tiotropium bromide combined with salmeterol xinafoate and fluticasone propionate in the treatment of medium and severe COPD. METHODS:119 patients with medium and severe COPD were divided into control group(54 cases)and observation group(65 cases)according to admission order. Control group was treated with Salmeterol xi-nafoate and fluticasone propionate powder for inhalation 50 μg,bid;observation group was additionally given Tiotropium bromide powder for inhalation 18μg,qn. Both groups received 1 month of treatment. Lung function indexes as FEV1,FVC and IC,blood gas indexes as SaO2,PaCO2 and PaO2 and inflammatory factors as IL-8 and TNF-α,COPD assessment test(CAT)score were observed in 2 groups,and the occurrence of ADR was also observed. RESULTS:Before treatment,there was no statistical significance in above indexes between 2 groups(P>0.05). After treatment,FEV1,EVC,IC of observation group were increased significantly,SaO2 and PaO2 of observation group were increased significantly,while PaCO2,IL-8 and TNF-αlevels was decreased significantly;those index-es of observation group were significantly better than those of control group,with statistical significance(P<0.05). CAT score of 2 groups were decreased significantly compared to before treatment,and the observation group was significantly lower than control group,with statistical significance(P<0.05). No obvious ADR was found in 2 groups. CONCLUSIONS:Tiotropium bromide com-bined with salmeterol xinafoate and fluticasone propionate shows good clinical efficacy and safety in the treatment of medium and se-vere COPD.

The article teased the concept of medical futility and analyzed the issues when implement the medical futility policy.It introduced the medical futility policy by the examples of New York Public Health Code Article 29-B:Orders Not to Resuscitate and relevant regulations in Taiwan and presented some reflections on medical futility.The authors suggested that it should cope with the common and troubled cases of medical futility,establish ethics committee,and make the medical futility policy at the stage of tense doctor-patient communication.