Epithelial-mesenchymal transition is closely related with invasion and metastasis of malig-nant tumor and is focused on invasion and metastasis in malignant tumor in recent years .Many researches dermon-strate that epithelial-mesenchymal transition is involved in invasion and metastasis of several malignant tumors , such as breast cancer ,ovary cancer and non -small cell lung cancer .The relevant signal pathways and molecular proteins are also studied .Research progress of epithelial -mesenchymal transition in non -small cell lung cancer for invasion and metastasis is reviewed in this article .

Objective To evaluate the therapeutic effect of glycyrrhizic acid ointment on chronic eczema in guinea pigs.Methods Totally,60 Kunming male mice,60 Kunming mice and 60 albino guinea pigs were respectively classified into 6 groups:model group,ointment base group,dexamethasone group,high-,medium-and low-dose glycyrrhizic acid group.To observe the effect of glycyrrhizic acid ointment on the swelling of mouse auricles,dexamethasone and different doses of glycyrrhizic acid ointment were topically applied to both auricles of male mice in corresponding groups followed by the establishement of mouse auricle swelling model induced by xylene.One and a half hours later,the mice were sacrificed,and the weight of swelling auricles was weighed.Scratching behavior was induced by dextran 40 in Kunming mice following the application of dexamethasone or glycyrrhizic acid ointment.The latent period and frequency of scraching were recorded for every Kunming mice.To establish a model of eczema,guinea pigs were sensitized with dinitrochlorobenzene (DNCB,5％) in the neck and back and challenged by DNCB (0.1％) on the inner surface of right ears once a week for 4 weeks;subsequently,both auricles were treated with dexamethasone or glycyrrhizic acid ointment once a day for 10 days.Then,the thickness of auricles of guinea pigs was measured,and skin tissue was obtained from the right ear of guinea pigs and subjected to a pathological analysis.Results The high- and medium-dose of glycyrrhizic acid ointment could suppress the xylene-induced swelling of mouse auricles (P ＜ 0.05 or P ＜ 0.01 ).The latent period of scratching could be lengthened by high dose of glycyrrhizic acid (P ＜ 0.05).The three doses of glycyrrhizic acid all reduced scratching frequency in Kunming mice (P ＜ 0.05 or P ＜ 0.01 ).Attenuated swelling of auricles (P ＜ 0.05 or P ＜ 0.01 ) and relieved pathological changes were observed in guinea pigs after treatment with glycyrrhizic acid ointment.Conclusion Glycyrrhizic acid ointment shows a therapeutic effect on chronic eczema in guinea pigs.

Objective To construct a eukaryotic expressing vector harboring human DC-SIGN, and establish a BHK21 cell line stably and highly expressing DC-SIGN. Methods The DC-SIGN gene fragment which contained Not I and BamH I sites was amplified by PCR from pUNO-hDCSIGN1Aa plasmid, digested with Not I and BamH I, and then cloned into an eukaryotic expression vector pIRES-neo to construct eukaryotic expression vector pIRES-neo-DC-SIGN. The recombined plasmid was identified with Not I and BamH I enzyme digestion and sequencing, the latter was then transfected to BHK21 cells by LipofectamineTM 2000. After screening culture by G418, BHK21 cell line stably expressing DC-SIGN was established. The expression of DC-SIGN was identified by flow cytometry, Western blotting and immunofluorescence method. Results The gene sequence of DC-SIGN was consistent with that of design. PCR and double enzyme digestion analysis showed that the recombinant plasmid pIRES-neo-DC-SIGN was constructed successfully. After transfection, positive clones were selected with G418. After limiting dilution assay, BKH21 cell lines stably expressing DC-SIGN were established. The detection result of flow cytometry showed that the expression ratio of DC-SIGN positive clones was close to 90%. The result of immunofluorescence displayed that the expression of DC-SIGN was mostly located on the surface of cell membrane. Western blotting displayed the specific band of DC-SIGN protein. It showed that the BHK21 cells stably expressing DC-SIGN were successfully established. Conclusion DC-SIGN eukaryotic expression vector has been successfully constructed. The successful establishment of BHK21 cell lines which can stably express DC-SIGN provides a substantial foundation for further study on the DC targeting vaccines.

Object　To determine the amount of acacetin-7-O-β-D-glucoside and apigenin-7-O-β-D-glucoside in Chrysanthemum morifolium Ramat. from different localities. Methods　By the use of HPLC. Results　The contents of acacetin-7-O-β-D-glucoside in Boju1, Chuju2, Gongju3 and Hangju4 were 0.082 6%～0.124 9%, 0.015 7% and 0.033 5% respectively; the contents of apigenin-7-O-β-D-glucoside in Chuju, Boju, Gongju and Hangju were 0.012 6%, 0.027 4%, 0.117 7% and 0.587 7% respectively. Conclusion　The contents of the two flavone glycoside in C. morifolium from different localities were markedly different.

Objective To evaluate the efficacy of transarterial embolization(TAE) for intraperitoneal hemorrhage due to spontaneous rupture in hepato-cellular carcinoma(HCC).Methods 50 cases with ruptured HCC were divided into 4 groups according to the type of their previous treatment:group A,TAE followed by elective hepatectomy 12;Group B,TAE alone 12;Group C,emergency operation 13;Group D,medical conservative management.Results Celiac arterio-graphy done before the present treatment showed extravasation of contrast material in 6(25%) of the 24 patients in group A and B,and hypervascular tumor was observed in the rest.The hemostasis success rate of group A,B and C were 100%,which were much higher than that of group D(40%)(P

Objective To set up a new method for fast determining and identifying Xintong Oral Liquid by acousto-optic tunable filter-near infrared(AOTF-NIR)spectroscopy.Methods Identifying method by NIR spectroscopy combined with principal component analysis(PCA),and determining model of qualitative and quantitative analyses based on PLS1 algorithm.Results The XT-C identifying model could be used to identify Xintong Oral Liquid,the determining model of qualitative and quantitative analyses with better accuracy,RMSEP of the models for puerarin was 0.137 1,the determination coefficients was R2=0.984 5.The correlation coefficient of the true value and predication value from validation was r2=0.996 4.The average recovery of the predication set was 101.9%.RSD for precision was 1.98%,RSD for stability was 1.57%.Conclusion The method is a quick and simple assay technique with low cost,which is able to be used in the qualitative and quantitive analyses on Xintong Oral Liquid.

Objective:To study the risk factors for contralateral hip fracture within 2 years after primary hip fracture surgery in elderly patients.Methods:A retrospective study was conducted of the 1,962 elderly patients who had been surgically treated for hip fractures at Department of Orthopaedic Trauma, Beijing Jishuitan Hospital from May 2015 to April 2018. They were 573 males and 1,389 females; the median age of primary hip fracture was 81 (75, 86) years. They were divided into 2 groups according to whether a contralateral hip fracture occurred or not within 2 years after primary hip surgery: 134 patients in the contralateral fracture group and 1,828 ones in the contralateral fracture-free group. The duration from primary hip fracture to secondary contralateral fracture was recorded. The χ2 test and Mann-Whitney U test were used to compare between the 2 groups their gender, age, walking ability, laboratory indexes upon admission, concomitant internal diseases, Charlson comorbidity index (CCI), duration from admission to surgery, duration from admission to discharge and complications during follow-up. The risk factors for contralateral hip fracture within 2 years after primary hip surgery were determined by the Cox's proportional hazard regression model. Results:In the elderly patients with hip fracture, the 2-year cumulative incidence of secondary contralateral hip fracture was 6.83%(134/1,962) and the median duration from primary surgery to secondary contralateral hip fracture was 365 (189, 611) d. The risk factors for contralateral hip fracture were female ( RR=2.081, 95% CI: 1.351 to 3.207, P=0.001), concomitant peripheral vascular disease ( RR=5.876, 95% CI: 2.922 to 11.818, P< 0.001), concomitant chronic obstructive pulmonary disease ( RR=3.750, 95% CI: 1.897 to 7.413, P< 0.001), progressively higher CCI ( RR=1.363, 95% CI: 1.223 to 1.519, P<0.001), complicated pneumonia ( RR=3.606, 95% CI: 2.054 to 6.332, P<0.001), complicated urinary infection ( RR=7.670, 95% CI: 4.441 to 13.248, P<0.001), and complicated deep venous thrombosis (DVT) ( RR=7.389, 95% CI: 3.992 to 13.677, P<0.001). Conclusions:The risk factors for contralateral hip fracture within 2 years after primary hip fracture surgery in elderly patients may be female, concomitant peripheral vascular disease and chronic obstructive pulmonary disease, progressively higher CCI, and complicated pneumonia, urinary infection and DVT.

OBJECTIVE To reduce incidence of infection caused by Pseudomonas aeruginosa(PAE) in orthopedic operation site. METHODS Efforts on quality managements were enhanced in each step,including strict check of implanted devices for orthopedic procedure and reliable preparation of skin area before operation,standardized operation techniques and incision protection skill during operation as well as wound care and ward environment managements after surgery. RESULTS With enhanced efforts taken in each step of quality managements,the incidents of PAE infection of orthopedic operation site have fallen significantly from 1.27% down to 0.11%(P

Basing on the basic theory of traditional Chinese medicine (TCM), the technical standards of TCM industry is such a Link that it is to clarify the internal relations between the basic theory of TCM and developing of TCM industry. This article analyzed several problems of technical standards of TCM industry, such as basic theory of TCM and standardization problem of TCM industry. Technical standards of TCM industry must receive the guidance of basic theory of TCM, so that it will promote the process of modernization and internationalization of TCM industry.
China ; Drug Industry ; standards ; Drugs, Chinese Herbal ; standards

Objective To investigate the physical fitness status of stationed on an island and the influence factors of military operational ability in order to take effective intervention measures to cope with the problems encountered by the garrison force.Methods The outdoor environment heat intensity of the island was monitored and evaluated by thermal environment monitors.The physical fitness of thirty-eight soldiers randomly selected was evaluated by measuring VO 2max. Ninety soldiers stationed on this island were selected by random sampling , for whom questionnaires and interviews were designed, involving the influence factors of military operational ability .Results This island was a typical humid-hot environment, with high temperature , high humidity and high radiation .The physical fitness of soldiers declined obviously because of the typical humid-hot environment.The top five working environmental factors were high temperature , humidity, solar radiation, wind and seasonal drying .The top five personal factors were physical fatigue , overtraining, injury, mental fatigue and lack of sleep .Conclusion Considering the obviously decreased physical fitness of soldiers caused by the typical humid-hot environment , how to assess military combat effectiveness and how to determine whether the level of combat effectiveness can meet the actual needs of tropical combat , requires scientific indicators and criteria of evaluation .