On the basis of the bioluminescent detection technology of the lux gene being a kind of new and progressing environmental detection technology,in this paper,the constitution,function,expression and regulation of the lux gene were introduced,moreover,the recent advance of its application in the study of environmental detection was reviewed

Repair of articular cartilage injury has always been a focus of medical study and sports injury study.With the application and development of molecular biotechnology,the role of growth factor has become more and more important in articular cartilage injury.This paper analyzes the difficulties in repairing articular cartilage injury.discusses the effect of transforming growth factor β1 and bone morphogenetic protein-2 on it as well as the mechanism under its repainng,and summanzes the existing problems.it can provide important data for future research.

OBJECTIVE:To elucidate the role of transforming growth factor-β and bone morphogenetic protein-7 in the reparation of knee cartilage by summarizing related studies,which can provide an important reference for further clinical applications.DATA SOURCES:The science online,ElsecierSD databases,Springer Link electronic joumals nets(1991-01/2009-06)was searched using key words of"Articular Cartilage Defects,Transforming Growth Factor-β,Bone Morphogenic Protein-7";simultaneously,the CNKI,Wanfang database,Tsinghua Tong Fang database(1991-01/2009-06)was searched with the same Chinese key words.Literature search was limited to English and Chinese languages.DATA SELECTION:Literature addressing repairing articular cartilage damage with growth factors was included,and the repeated papers were excluded.MAIN OUTCOME MEASURES:①Frecture healing.②Osteocyte proliferation.③Capacity of chonddfication.RESULTS:Received 95 computers seized in early literature,according to inclusion exclusion criteria,literature underlying growth factor,in particular the growth factor transforming growth factor-β and bone morphogenetic protein-7 in repaidng knee cartilagedamage was analyzed.Articular cartilage injury,with poor repair capacity,is more common in athletes.As soon as a permanent injury that generates lesions,it is difficult to treat by traditional treatment methods,which need to be solved in sports medicine.Transforming growth factor-β,an important factor regulating the formation of cartilage,stimulates or inhibits a variety of cells.By increasing the sensitivity of chondrocytes,transforming growth factor-β plays a central role in the process of repairing osteoarthdtis cartilage injury,regulates in vitro protein synthesis,but also affect on the induction of specific granulation tissues.Bone morphogenetic protein-7 can induces cartilage-specific collagen and mucin production by mesenchymal and wound areas,which has promotive effect on cartilage reparation.CONCLUSION:Transforming growth factor-β or bone morphogenetic protein-7 has certain effect on knee cartilage injury;however,whether the combination of them can promote reparation of articular cartilage injury needs to be explored.

Objective To investigate the relationship between helicobacter pylori (H. pylori) infection and reflux esophagitis (RE). Methods H.Pylori infection rates of RE in patients with simple chronic gastritis(CG),which was confirmed by gastrospcope combined with pathological diagnosis were researched.The relationship between HP infection and RE classifications using gastroscope and pathology was explored.Results ⑴H.pylori infection was found in 29(27.1%) in 107 cases of RE and 43(40.2%) in 107 cases of simple CG patients respectively,HP infection positive in RE patients less than that of simple CG patients.RE of class Ⅰ,Ⅱand Ⅲ using gastroscopy classification were 62.1%, 10.3% and 27.6% in H. Pylori-positive cases respectively, while they were 56.4%, 6.4% and 37.2% respectively in H. Pylori-negative ones. However, mild, moderate and severe RE identified by pathohistology were 72.4%, 13.8% and 13.8% in H.Pylori-positive cases respectively, and they were 57.7%, 17.9% and 24.4% respectively in H.Pylori-negative ones.Conclusions All above results suggested that H.Pylori possibly has prevention role in some extent to pathogenesis of RE. RE more commonly was seen in H.Pylori-negative cases.RE could inhibit the H.Pylori survive,So that,the RE was occurred frequently in H.Pylori-negative patients.The inflammatory extent of RE is not serious in H.Pylori-positive patients.

The conduction of performance appraisal in the hospital is of great significance to the perfection of the appraisal system and the improvement of the managerial efficiency of the hospital. The authors suggest that in the process of establishing an appraisal system of hospital performance, it is necessary to use for reference enterprises' experience in performance appraisal and the theories of performance management. Firstly, single-faceted pursuit of economic benefits should be avoided, the establishment of an external hospital appraisal system and the establishment of an internal hospital appraisal system should be combined, and attention should be paid to the overall application of performance appraisal in performance management. Secondly, in light of their own experience in hospital management, the authors put forward the suggestion of establishing a performance appraisal system of three levels: the hospital , the department and the post. They also argue that attention should be given to the selection of comprehensive appraisal methods, continuous communication about performance, and readjustment in a timely manner.

AIM: To investigate the expression kinetics of PD-L1 and PD-L2 on the surface of the resting and activated B/T cells as well as monocytes from healthy human peripheral blood.METHODS: Fluorescent antibody staining together with flow cytometry were used to detect the percentages of the resting as well as the activated B cells and T cells that expressed PD-L1 and PD-L2.Meanwhile the percentages of the resting and activated monocytes that expressed PD-L2 were determined.RESULTS: Both resting B cells and T cells did not express PD-L1 on their surface,however PD-L1 expression was significantly up-regulated on the surface of the activated B cells after 6 h stimulation with LPS or pokeweed mitogen(PWM),and the percentages of B cells that expressed PD-L1 reached a plateau at 24 h,which were(46.26?10.71)% with LPS and(43.67?6.14)% with PWM stimulation,respectively.No markedly change of PD-L1 expression on the surface of the activated T cells after stimulation with LPS was observed,but upregulation of PD-L1 expression was observed when stimulation with PWM.The percentages of T cells that expressed PD-L1 reached a plateau at 24 h,which was(25.42?9.23)%.PD-L2 expression was not found on the resting as well as the activated B cells and T cells.In addition,the resting monocytes did not express PD-L2.Combination of INF-? plus LPS markedly induced the PD-L2 expression,and the percentages of monocytes that expressed PD-L2 reached a peak at 48 h,which was(28.70?14.22)%.CONCLUSION: The activated lymphocytes only express PD-L1,reaching a plateau at 24 h.PD-L2 is expressed on the surface of the activated monocytes,reaching a peak at 48 h.

OBJECTIVE:To provide reference for rational use of Shexiang tongxin dripping pills in clinic. METHODS:In retrospective study,the utilization of Shexiang tongxin dripping pills in outpatients and inpatients of our hospital during Jan. 2014-May 2015 was analyzed statistically in terms of gender,age,department,irrational drug use,ADR and DUI,etc. RE-SULTS:There were 719 outpatient prescriptions and 281 inpatient medical orders. The female was more than male with ratio of 1.42:1. Most patients aged 80-89 year-old(35.4%). Shexiang tongxin dripping pills were mostly used in cardiovascular medicine de-partment(760 pieces/copies,76.0%). There were 72 prescriptions/medical orders that did not conform to the indications(7.2%), and 7 prescriptions/medical orders for overdose use(0.7%). No obvious ADR was found. DUI of Shexiang tongxin dripping pills was 1.007. CONCLUSIONS:Although the clinical use of Shexiang tongxin dripping pills in our hospital is basically rational,there still are some nonstandard uses,which should be taken seriously. In order to reduce ADR,the clinical use of Shexiang tongxin dripping pills should be strictly in accordance with the drug instructions and should emphasize the syndrome differentiation based on treatment.

Objective To strengthen the capability of emergent supply in field medical point.Methods The common application program was designed by using PowerBuilder.The database program was Oracle.Results The assistant conduction and management of information were realized including the information of staff,war materials,equipment,wounded soldiers in the field medicine.Conclusion Information management system in field hospital can rapidly and accurately provide all kinds of information for users.It can be extensively applied in all levels of field hospitals.

Objective Saxagliptin regulates the level of blood glucose by selectively inhibiting high-performance dipeptidyl peptidase 4, but its action mechanism is not yet clear .This study was to investigate the effect of the novel hypoglycemic agent Saxaglip -tin on the expression of long non-coding RNA (LncRNA) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) and its target gene products transforming growth factor-β1 ( TGF-β1 ) in human umbilical vein endothelial cells ( HUVECs) stimulated by high glucose. Methods HUVECs were cultured in with D-glucose (D-GS) at the concentrations of 5.5, 10, 20, and 30 mmol/L and Saxagliptin at 0, 0.01, 0.1, 1, and 10μmol/L.The best concentrations of D-GS and Saxagliptin were determined as 30 mmol/L and 1 μmol/L, respectively.The HUVECs were divided into four groups:control (5.5 mmol/L D-GS), Saxagliptin (5.5 mmol/L D-GS+1 μmol/L Saxagliptin ) , high glucose ( 30 mmol/L D-GS ) , and high glucose +Saxagliptin (30 mmol/L D-GS +1μmol/L Saxaglip-tin), all cultured for 24 hours.Then the expressions of MALAT1 and TGF-β1 mRNA in the cells were detected by qRT-PCR, that of the TGF-β1 protein determined by Western blot , and the level of TGF-β1 in the supernatant measured by ELISA . Results The expressions of LncRNA-MALAT1 and TGF-β1 were significantly increased in the high glucose group as compared with the control ( 8.65 ±0.70 vs1.00 ±0.00 and 1.36 ±0.07 vs 1.00 ±0.00, P<0.01) but markedly inhibited in the high glucose +Saxagliptin group in compari-son with the high glucose group (2.17 ±0.24 vs 8.65 ±0.70 and 1.15 ±0.02 vs 1.36 ±0.07, P<0.05). Conclusion High glu-cose can induce the overexpression of LncRNA-MALAT1 and its target gene products TGF-β1 in HUVECs and cause damage to the cells, while Saxagliptin can significantly suppress this effect .

Objective To observe the changes of the depressive behavior and amygdaloid nucleus nerve growth factor(NGF)expression in estro?gen?deprived female rats and explore the possible mechanism and targets of estradiol in depression treatment. Methods A total of 30 adult SD fe?male rats were randomly assigned to 3 groups:sham operation group(SHAM,n=10);ovariectomized group(OVX,n=10)and ovariectomized rats treated with estradiol group(OVX+E,n=10). The behavior changes were observed by tail suspension test(TST)and sucrose preference test (SPT) after 8?week estradiol treatment. Subsequently ,immunohistochemical staining detect NGF expression in amygdaloid nucleus. Results Compared with the SHAM group rats,sucrose preference ratio significantly decreased in SPT(P<0.01),immobile time prolonged in TST(P<0.01),serum estradiol level and amygdaloid NGF expression significantly decreased(all P<0.01). 8?week estradiol treatment ameliorated depres?sion?like behavior and increased serum E2 level and NGF expression in amygdaloid nucleus in OVX+E group rats when compared with the OVX group(all P<0.01). Conclusion Estradiol treatment can improve the depressive behavior of ovariectomized rats ,which may be related to the in?crease of serum estradiol level and the expression of NGF in amygdaloid nucleus.