Antioxidants ; metabolism ; therapeutic use ; Bronchopulmonary Dysplasia ; drug therapy ; etiology ; metabolism ; Humans ; Hyperoxia ; complications ; Infant, Newborn ; Lung ; metabolism ; Reactive Oxygen Species ; metabolism

ObjectiveTo obtain the soluble expression of P protein of norovirus(NV)G Ⅱ. 2[P16]and analyze its antigenic characteristics.MethodsThe recombinant plasmid GⅡ.2-NV-pET-28a was constructed by optimizing the NV GⅡ.2[P16]P protein gene,synthesizing and cloning it into pET-28a(+)vector. The recombinant plasmid was transformed into DH5α competent cells,and the expression strain was optimized to make the P protein express in soluble form. The expressed P protein was purified by Ni-NTA affinity chromatography,of which the antigenicity was detected by Western blot,the purity was detected by size exclusion high performance liquid chromatography(SEC-HPLC),and the antigenantibody binding ability was identified by ELISA.ResultsThe target protein of recombinant BL21 Star(DE3)pLySs was highly expressed in soluble form. After purification by affinity chromatography,the purity of GⅡ.2 P protein was 95. 53%,and the antigenicity was good.ConclusionSoluble NV P protein was successfully prepared by prokaryotic expression strain,and the antigenicity of P protein was confirmed,which laid a foundation of the development of NV G Ⅱ.2[P16]detection kits and the recombinant subunit vaccines.

Objective To review the outcome of coronary artery bypass graft (CABG) using left internal thoracic artery grafts in the patients aged over 70 years old.Methods Two hundred and eighty-eight patients aged over 70 years old from January 2009 to January 2014 who underwent CABG were selected.All of the patients were divided into two groups on base of the graft:control group:only saphenous vein graft was used in 138 cases; observation group:the left internal thoracic artery to the left anterior descending artery was used in 150 cases,which also included total arterial grafting,facilitated by the use of the radial artery,right gastroepiploic artery was operated in 7 cases,beside these artery grafts,saphenous vein graft was used to anastomosis with other vessels.Results Operative mortality was 2.9％ (4/138) in control group and 2.0％ (3/150) in observation group,and there was no significance (P ＞ 0.05).The volume of blood drainage was larger in observation group [(796.2 ± 382.4) ml] than that in control group [(512.8 ± 387.5) ml],and there was significant difference (P ＜ 0.05).At the same time,there was no significant difference in the incidence rate of second thoractomy,malignant arrhythmia,stroke,poor wound healing,and usage of intraaortic balloon counterpulsation between two groups (P ＞ 0.05).Conclusion It does not increase the mortality and incidence of serious complications using the left internal thoracic artery to the left anterior descending artery in the patients aged over 70 years old during CABG.

Diabetic microvascular disease is a severe complication of diabetes mellitus (DM).There are many hypoth-esis for its mechanisms.This overview aimed at effect of C-peptide,coagulant factors,platelet and D-dimer in dia-betic microvascular disease,and provided evidence for its prevention and treatment in clinic.

The medicine of Yi ethnic plays an important role of the traditional medicine of China. Recently, the facility of Yi ethnic medicine has made great progress on its development process. Now many medicine industries develop the production of Yi ethnic medicine. Thus, this demands a great quantity of Yi ethnic medicine, but it also leads rapid decline with overuse of the medical resources. Here we discussed a series of problems, and put forward the corresponding stradegies of protection of Yi medicine.

Objective To study the effect of articular step-off on knee joint contact pressures in fractures of the medial tibial plateau. Methods Eight specimens of embalmed adult knee joint were used to establish models of articular step-off of the medial tibial plateau by 0,1,2,3 mm respectively (Schatzker Ⅳ fracture) .The technique of pressure sensitive film was used to measure the contact pressures on the weight-bearing area of the knee joint in the 3 models. Results When the step-offs of medial tibial plateau were 0,1,2,3 mm,the average contact pressures on the lateral compartment were respectively 3.34 ± 0.06 MPa,3.48 ± 0.06 MPa,4.19 ± 0.05 MPa,4.19 ± 0.04 MPa,while the average contact pressures on the medial coMPartment were 4.04±0.17 MPa,4.57±0.20 MPa,5.64±0.20 MPa,5.64±0.19 MPa.When the step-off of medial tibial plateau was 2 mm,the average contact pressures on the medial and lateral plateaus increased by 39.6％ and 25.4％ compared with the 0 mm step-off,with statistically significant differences (P ＜0.05). Conclusions If the step-off of the medial tibial plateau reaches ≥ 2mm,open reduction and internal fixation should be indicated to prevent secondary traumatic arthritis.When the step-off of the medial tibial plateau is ＜ 2 mm,conservative treatment can be a proper choice.

There were 461939 outpatient visits in Shanghai Tianping Primary Health Center from January to December 2010,the data were retrospectively analyzed based on the electronic outpatient record.The 20 most common illnesses accounted for 73.67％ of total outpatient consultations (340310/461 939),hypertension ranked the first position of all illnesses ( 21.06％ ) and followed by coronary heart disease (8.36％).Patients aged over 65y accounted for 72.35％ of all patients,the frequency of consultations was positively correlated with age of patients(P ＜0.01 ).The frequency of consultations varies according to the gender,age of the patients as well as the organ system involved (P ＜ 0.01 ).It can be concluded that the most frequently encountered illnesses in primary health center are common illnesses and chronic diseases.There are different needs for primary health service between genders and different age groups.

Objective To investigate clinical effects of laparoscopic salpingotomy combined with pituitrin in the treatment of tubal pregnancy.Methods 160 children with tubal pregnancy were chosen in our hospital in the period and randomly divided into two groups including control group (80 children)with laparoscopic salpingotomy treatment and treatment group (80 children)with pituitrin adjunct treatment before operation on the basis of control group.And the operation time,intraoperative bleeding volume,postoperative body temperature,hospitalization time,the retention rate of fallopian tube,fallopian tube patency rate,persistent ectopic pregnancy rate,intrauterine pregnancy rate and fertility rate of both groups were compared.Results The operation time,intraoperative bleeding volume, postoperative body temperature and hospitalization time of the control group were separately (20.33 ±2.70)min, (52.76 ±7.42)mL,(37.52 ±0.54)℃ and (7.56 ±1.98)d;the operation time,intraoperative bleeding volume, postoperative body temperature and hospitalization time of the treatment group were separately (8.94 ±1.61)min, (16.33 ±2.15)mL,(37.46 ±0.50)℃and (5.91 ±1.42)d;the operation time,intraoperative bleeding volume and hospitalization time of the treatment group were significantly better than those of the control group (t=2.26,2.60, 2.08,all P<0.05 );there was no significant difference in postoperative body temperature between 2 groups (t=1.55,P>0.05).The retention rate of fallopian tube and fallopian tube patency rate of the control group were sepa-rately 75.00% (60/80)and 52.50%(42/80);the retention rate of fallopian tube and fallopian tube patency rate of the control group were separately 93.75% (75/80)and 81.25% (65/80);the retention rate of fallopian tube and fallopian tube patency rate of treatment group were significantly better than those of the control group (χ2 =9.71, 10.14,all P<0.05).The persistent ectopic pregnancy rate,intrauterine pregnancy rate and fertility rate of the control group were separately 17.50%(14/80),31.25%(25/80)and 37.50%(30/80);the persistent ectopic pregnancy rate,intrauterine pregnancy rate and fertility rate of the treatment group were separately 15.00% (12/80),61.25%(49/80)and 16.25% (13/80);there was no significant difference in persistent ectopic pregnancy rate between 2 groups (χ2 =1.33,P>0.05);the intrauterine pregnancy rate and fertility rate of treatment group were significant-ly better than those of the control group (χ2 =11.84,12.52,all P<0.05).Conclusion Laparoscopic salpingotomy combined with pituitrin in the treatment of tubal pregnancy can efficiently decrease operation time the amount of bleeding,shorten hospitalization time and be helpful to improve the reproductive outcome.

0.05). Conclusion The LDH method applied in the in vitro inhibition assay for P. falciparum seems simple, reliable and has generated a satisfactory result.

Swine influenza A virus belongs to the family of Orthomyxoviridae,which can cause upper respiratory tract infection in swine,avian and human.The influenza A virus that could not be sub-typed was detected from the respiratory tract specimens of patients with influenza-like symptoms in March 2009 in USA and Mexico,followed by identification of a novel swine-origin influenza A (H1N1) virus (S-OIV),which led to an epidemic outbreak in the above two countries and then spread all over the world,causing quite a few deaths.S-OIV differs from other influenza viruses in genotyping,antigenic characteristics,propagating characteristics,pathogenic characteristics and therapies.