Perioperative chemotherapy for gastric cancer has made steady progress with the application of chemotherapeutic agents and conduct of relevant clinical trials. However, palliative chemotherapy has only made marginal progress, and the median survival remains between 8-10 months. An emerging understanding of tumor biology, cellular and molecular mechanisms has revealed novel targets in gastric cancer therapy, such as trastuzumab, bevacizumab, cetuximab, etc. There are still some problems in clinical practice due to the high heterogeneity of gastric cancer including optimization of perioperative chemotherapy regimen, determination of right strategy to personalize chemotherapy or target therapy for advanced gastric cancer. In order to practically achieve individualized therapy, multicenter, prospective, randomized clinical trials according specific matters of gastric cancer should be performed in China. A deeper understanding of the biological characteristics of gastric cancer, and more translational medicine research and multi-disciplinary team collaboration should be carried out to achieve personalized medicine.
Chemotherapy, Adjuvant ; Humans ; Precision Medicine ; Stomach Neoplasms ; drug therapy

Adult ; Ergonomics ; Female ; Humans ; Male ; Middle Aged ; Multivariate Analysis ; Musculoskeletal Physiological Phenomena ; Regression Analysis ; Workplace

Humans ; Occupational Exposure ; Risk Assessment ; Workplace

ObjectiveTo investigate the expression of programmed death receptor ligand 1 ( PD-L1 ) of peripheral blood mononuclear cells (PBMCs) in patients with hepatic cystic echincccccosis (HCE) and its relation with interferon-γ.MethodsThe clinical data of 63 patients with HCE who were admitted to the First Affiliated Hospital of Xinjiang Medical University from June 2010 to February 2011 were retrospectively analyzed.All patients were divided into HCE active group (38 patients) and HCE non-active group (25 patients) according to the system established by the World Health Organization's Informal Working Group on Echinocoecosis.Twenty patients with hepatic hemangioma or healthy individuals were recruited in normal control group.The positive rate of PD-L1 expression was detected by flow cytometry and immunocytochemistry.The expression of interferon-γ was detected by enzyme-linked immtmosorbent assay (ELISA).All data were analyzed by the t test,one-way analysis of variance,LSD test and chi-square test.The relationship between the expression of interferon-γ and positive rate of PD-L1 expression was analyzed by the Pearson test.ResultsThe results of flow cytometry showed that the positive rates of PD-L1 expression in the HCE active group,HCE non-active group and normal control group were 12.1％±3.8％,10.9％ ± 2.5％ and 9.1％ ±2.5％,respectively.There was a significant difference in the positive rate of PD-L1 expression between the HCE active group and normal control group (t =3.327,P ＜ 0.05 ).The results of immunohistochemistry showed that the positive rates of PD-LI expression in the HCE active group,HCE non-active group and normal control group were 11.9％ ± 3.4％,i0.6％ ± 2.9％ and 9.5％ ± 3.6％,respectively.There was a significant difference in the positive rate of PD-L1 expression between the HCE active group and normal control group (t =2.470,P ＜ 0.05 ).The expressions of intefferon-γ in the HCE active group,HCE non-active group and normal control group were ( 141 ± 38 ) μμg/L,( 124 ± 32 ) μg/L and ( 105 ± 42 ) μg/L.There wasasignificant difference in the expression of interferon-γ between the HCE active group and normal control group ( t =3.280,P ＜ 0.05).The results of flow cytometry and immunohistochemistry revealed that the positive rate of PD-L1 expression was positively correlated with the expression of interferon-γ( r =0.59,0.61,P ＜ 0.05 ).Conclusion With the help of interferon-γ,PD-L1 may play an important role in promoting the immune.evasion of echinococcus.

Objective To evaluate the clinical effect of breast implant on congenital mammary dysplasia with mild pigeon chest deformity. Methods From January 2003 to July 2009,10 cases of female mammary dysplasia (between 20 to 31 years of age) underwent breast implant surgery. Subpectoral placement and transaxillary incision were selected. The surgeon marked the range of the operation on the skin, made a 3-4 cm incision in the armpit, separated the tissue until the pectoral lateral margin, cut the pecto-ralis fascia and bluntly created a suitable pocket under the pectoralis major for the implant. After the implant was placed in the pocket, the incision was closed. Results Ten cases of breast implant surgery did not pose the complications of local skin necrosis, infection, implant shift, heart and lungs dysfunction after one year follow-up. The appearance of anterior chest wall deformity was markedly improved. Conclusions The application of breast implant surgery in the treatment of congenital mammary dysplasia with mild pigeon chest deformity should be promoted, because of the double surgical effect of easy performing, minimal surgical damage, perfect breast shape and concealed deformity.

Health Personnel ; psychology ; Humans ; Logistic Models ; Multivariate Analysis ; Professional Competence ; statistics & numerical data ; Stress, Psychological ; epidemiology

A method was developed for analyzing the stable carbon isotope ratio of five volatile components ( Ethanol, Glycerol, Acetic acid, Ethyl lactate, 2-methyl-butanol ) in wine using gas chromatography-combustion-isotope ratio mass spectrometer ( GC-C-IRMS ) . The sample injection volume was less than 0. 5 μL, and the analytical time of each run was less than 14 min. The precision of this method was 0. 08‰-0. 25‰ for analyzing standards, while 0. 09‰-0. 36‰ for wine samples. Compared to element analysis-isotope ratio mass spectrometry ( EA-IRMS) results, the deviations were lower than 0. 5‰. Fifty-four wine samples from France, Australia, America and China were considered. The δ13 C of five volatile components were measured using GC-C-IRMS. Discriminant analysis ( DA) was employed for analyzing the geographical origin traceability of selected wine. The result indicated that δ13 C of volatile components could be used to distinguish the origin of wines. The method was shown to be effective in improving detection of the origin traceability of wine.

To observe the reliability and short-term and mid-term efficacy of a new designed multi-functional lacrimal sac nasal drainage stent on the treatment of nasolacrimal duct obstruction after endonasal endoscopic dacryocystorhinostomy ( EES-DCR ) , and to evaluate its clinical application value. METHODS: A retrospective case series study was carried out. Seventy - six patients ( 79 eyes ) with nasolacrimal duct obstruction underwent EES-DCR and a new type of multi-functional lacrimal sac nasal drainage stent was implanted. The nasal lacrimal drainage stent was pulled out 2~3mo later after surgery and the patients received 3~6mo follow-up afterwards. RESULTS: ln 79 eyes, stents were successfully implanted in 77 eyes (97. 5%). All stents of 77 eyes could be pulled out successfully 2 ~ 3mo after the operation. Sixty eyes were cured with unobstructed lacrimal irrigation and symptom of epiphora disappeared;15 eyes were improved of epiphora and mild reflux during lacrimal irrigation were found, overall effective rate was 97. 4%, 2 eyes failed in stent implantation. ln 6mo follow-up, nocomplications such as stent displacement or slip was occurred, the epithelization of anastomotic stoma was good.CONCLUSlON: Surgical technique of using the multi-function nasolacrimal stent is simple and fast, and implantation of the new designed stents has a rapid recovery with fewer complications. The usage of the new stents not only improves the success rate but also broadens surgical indications of EES-DCR, it is a safe and effective method for the treatment of nasolacrimal duct obstruction.

Objective To study the mRNA expression of HS1-associated protein X-1(Hax-1),an an- ti-apoptosis genc,in the peripheral blood mononuclear cells(PBMC)of patients with systemic lupus erythe- matosus(SLE),and further investigate the roles and significance of Hax-1 in the pathogenesis of SLE.Meth- ods Generation of longer cDNA fragments from serial analysis of gene expression(SAGE)tags for gene identi- fication(GLGI)was applied to identify the gene Hax-1 according to the Long SAGE tag.Then reverse tran- scription-polymerase chain reaction(RT-PCR)technique was used to semiquantitatively analyze mRNA ex- pressions of Hax-1 in PBMC from 34 active SLE patients and 25 healthy subjects.Results Compared with healthy controls,there was significant difference between SLE patients in the active stage and the normal controls(Z=-4.556,P＜0.01).The average level of mRNA expression in active SLE group was higher than that in healthy controls.Significant difference was found between the group with mild SLE and either the moderate or the severe one(P＜0.01).Conclusion The mRNA expression level of Hax-1 in active SLE group increase markedly,and to some extent,it is related to the activity of SLE.This provides a valuable basis for the further study on the role of apoptosis in SLE.

Plasmid vector is increasingly applied to gene therapy or gene vaccine. The production of plasmid pCMV-AP3 for cancer gene therapy was conducted in a modified MBL medium using a recombinant E. coli BL21 system. The effects of different MMBL components on plasmid yield, cell mass and specific plasmid DNA productivity were evaluated on shake-flask scale. The results showed that glucose was the optimal carbon source. High plasmid yield (58.3 mg/L) was obtained when 5.0 g/L glucose was added to MMBL. Glycerol could be chosen as a complementary carbon source because of the highest specific plasmid productivity (37.9 mg DNA/g DCW). After tests of different levels of nitrogen source and inorganic phosphate, a modified MMBL medium was formulated for optimal plasmid production. Further study showed that the initial acetate addition (less than 4.0 g/L) in MMBL improved plasmid production significantly, although it inhibited cell growth. The results will be useful for large-scale plasmid production using recombinant E. coli system.