Objective To study the treatment influences on immunity and tumor recurrence of oral canc -er patients with the combination therapy of hyperbaric oxygen treatment and postoperative adjuvant chemotherapy . Methods In the period from March 2011 to March 2014 ,84 patients were clearly diagnosed with oral cancer and randomly divided into hyperbaric oxygen treatment combined postoperative adjuvant chemotherapy group ( group A,n=42)and postoperative adjuvant chemotherapy group (group B,n=42).From day 1 prior to the last day of chemotherapy ,patients in group A were treated with hyperbaric oxygen ,and patients in group B were just accepted chemotherapy.After chemotherapy,we tested the levels of CD3 +,CD4 +,CD8 +and NK cells by flow cytometry, and the expression of IL -2,IL-4,IL-10 and INF-γby ELISA essay.All patients had been followed for two years.Results The levels of CD4 +and NK cells in group A were higher than group B (P<0.05),but the levels of CD3 +and CD8 +between the two groups were obviously different (P>0.05).Compared with group B,the ratio of CD4 +and CD8 +was increased in group A(P<0.05).The levels of cytokines involved IL -2,IL-4,IL-10 and INF-γin group A were higher than the levels of group B ( P<0 .05 ) .Follow-up results showed that pa-tients treated with hyperbaric oxygen combined postoperative adjuvant chemotherapy had less recurrence in 2 years(P<0.05).Conclusion Hyperbaric oxygen combined postoperative adjuvant chemotherapy can improve the patients′immune function ,and to be effective in preventing two years′recurrence .

Objective To investigate effects of neural retina on development of the structure of outer blood retinal barrier in embryogenesis. Methods The retinal neural epithelium (RNE) and pigment epithelium (RPE) layers of 150, 120 and 90 embryonic chicken eyes incubated for 7, 10, and 14 days were peeled off. RNE was used to prepare the culture medium with different conditions (7drcSF3, 10drcSF3, 14drcSF3). RPE cells of 7- and 14-incubated chicken embryos were cultured on laminin-coated transwell filter. The SF3, 7drcSF3, 10drcSF3, 14drcSF3 medium were used respectively in the apical chamber and SF2 was used in basolateral chamber. After the formation of monolayer, the transepithelial electrical resistance of the RPE was detected. After the fixation of RPE cells, the condition of the tight junction among the cells was observed by immunohistochemistry and transmission electron microscopy. Results For the RPE cells of 7- and 14-day incubated embryonic eyes, the difference of TER in various medium of SF3/SF2, 7drcSF3/SF2, 10drcSF3/SF2, 14drcSF3/SF2 was statistically significant (P

Objective To investiGate the bioloGical effect of inhibitor of apoptosis proteins( Survivin) on esophaGeal cancer ECA-l09 cell line. Methods Survivin siRNA was transiently transfected into non small esophaGeal cancer ECA-l09 cell line by liposome-mediated method and the expression level of Survivin siRNA was detected by RT-PCR and western blot. MTT assay,cell apoptosis,cell cycle and western blot were conducted as to observe proliferation,apoptosis,cycle of cell and expression of Caspase-9. Results RT-PCR and Western blot showed that ECA-l09 cell transfected Survivin siRNA had a lower relative expressive content compared with untransfected Group( P <0. 05 ). MTT assay,cell apoptosis and cell cycles demonstrated that ECA-l09 cell transfected Survivin siRNA had a lower survival fraction,hiGher cell apoptosis,more percentaGe of the G2/M phases( P < 0. 05 ). Conclusion Survivin involve in the bioloGical processes of esophaGeal cancer cell proliferation,apoptosis,and cell cycle.

OBJECTIVE:To determine the retative bioavailability of Diclofenac sodium eye-ointment in rabbit eyes and to evaluate its pharmacokinetics following topical application METHODS:48 rabbits were divided into two groups 0 1% Diclofenac sodium eye-ointment and Diclofenac sodium eyedrops were applied topically to rabbit eyes and aqueous humor and iridic tissue were collected at given times The concentration of Diclofenac sodium in tissue were measured by HPLC RESULTS:Diclofenac sodium eye-ointment group had higher concentration and longer half-time than Diclofenac sodium eyedrops group,however,the peak time were the same in two groups The relative bioavailabilities of Diclofenac sodium ointment in aqueous humor and iridic tissue were 183 33% and 205 68% respectively,compared with those of Diclofenac sodium eyedrops CONCLUSION:Diclofenac sodium eye-ointment can be absorbed well and released slowly,which can reduce the frequency of application of drug It is especially suitable for operation patient or application at night

Objective To analyze the molecular characteristics of human pathogenic avian influenza A H7N9 virus.Methods The gene sequences of avian influenza A H7N9 virus (30 human-originated and 15 avian-originated) isolated in Zhejiang province from 2013 to 2015 were downloaded from Global Initiative on Sharing Avian Influenza Data ( GISAID), and then the evolution characteristics, the sites related to receptor binding, virulence and drug resistance of H7N9 virus were analyzed by MEGA 6.0 software. Results There were minor differences in HA and NA genes between human H7N9 virus strains and poultry reference strains in Zhejiang province with the homology of 98.0%-100.0% and 97.4%-100.0%, respectively.Viral amino acid variation showed that 30 representative strains had mutations at 226 (Q226L/I) and 186(G186V) sites in HA protein, and all strains isolated from 2015 had A134V mutation;one strain had R294K mutation in NA gene;19 strains had E627K mutation in PB2 and 2 strains had D701N mutation;mutation S31N was found in M2 gene in all isolates; and all HA cleavage sites were PEIPKGR↓GLF, indicating low pathogenic strain.Conclusions The homology of HA and NA genes is high between poultry reference strains and human H7N9 virus strains in Zhejiang province during 2013 and 2015.Strains have some significant mutations of amino acid in HA and NA protein.All isolates show ion channel inhibitors ( Amantadine) resistance, and some isolates show resistance mutations with neuraminidase inhibitors.

Objective To establish the solid phase extraction (SPE) with GC/MS technology for fish poi-soning cases to determine five pesticides in fishpond. Methods By three solid phase extraction column including Oasis HLB cartridge, Bond Elut C18 and SampliQ C18, the recovery rate was compared to ex-tract and purify five pesticides in fishpond. The effects of different kinds and dosages of eluents on ex-tract rate were also reviewed. Results Using Bond Elut C18 as solid phase extraction column and 3 mL benzene as eluent, the linear range of mass concentration of five pesticides in fishpond was 1-50 μg/mL, and the correlation coefficient was 0.996 2-0.999 6. The limit of detection was 3.4-26 μg/L and the re-covery was 61.49%-102.48%. The relative standard deviations was less than or equal to 3.01%. Conclu-sion With high sensitivity, good accuracy and precision, SPE -GC/MS has simple and quick operation and less solvent. It can be applied to determination of five pesticides in fishpond.

Objective To develop the accelerated solvent extraction (ASE ) for determ ining pesticides pre-sent in blood sam ples. Methods Pesticides were extracted by ASE with optimized param eters to study recovery rate affected by extraction tem perature, time and agent. GC/MS was used to perform quantita-tive analysis.Results The recovery rates of eight pesticides were 70.6%-92.4%. The coefficient of variation was less than 5.0%. Agood linear relationship was obtained at the concentration range of 0.5-5.0μg/m L . Conclusion The m ethod was fast and sim ple with high recovery rate and good repeatability. It can be applied to analyze pesticides present in the blood specimen.

During the Peace Friendship-2015and Harmony Misson-2015, the medical personnel aboard the hospital ship performed extensive medical exchanges , medical service shows ,and skill training many times and visited some local medical institutions .The exchanges involved war wound , seawater-immersion wound, drill wound, common disease, infectious disease .This paper gave an account of characteristics of and specific methods used in oversea medical exchanges . The experience from these visits and afterthoughts were presented in order to contribute to medical exchanges of this kind in the future.

Human avian-origin influenza A (H7N9)virus is a novel subtype of avian influenza A virus,which firstly emerged at the end of March 2013 in Shanghai and Anhui province.It rapidly spread in China within a short time,causing high morbidity and mortality,arousing fear and panic in public,and attracting extensive attention worldwide.The analysis of human H7N9 avian influenza virus gene shows a high affinity for α-2,6-linked sialic acid receptors expressed on human respiratory epithelial cells.At present,the sporadic cases of human H7N9 avian influenza virusare occasionally reported with an epidemic peaksat winter and spring.This article reviews clinical features,epidemiology and genetic characteristics of H7N9 avian influenza virus,proving scientific evidences foreffective prevention and control of H7N9 virus infection.

Objective To observe the expression of aquaporin-1(AQP1)in rats with acute lung injury induced by radiation,and discuss the protection of Tanreqing for rats with acute lung injury.Methods A total of 20 SD healthy rats were randomly assigned into 4 groups,including the comparison group,the radiation group(0.9％ NaCl 0.2ml),the dexamethasne group(5mg/kg)and the Tanreqing group(0.67ml/kg).Strat intraperitoneal injection one day after radiotherapy,the rats were sacrificed after 7 days.The pathological changes of lung tissues were observed by HE stain.AQP1 expressions in lung tissues were detected by immunohistochemistry and RT-PCR test.Results Compared with the radiation group,there was an obvious amelioration in pathological injury of lung tissue in the dexamethasne and Tanreqing groups.AQP1 was increased significantly in comparison group(0.8006±0.05846),but AQP1 was decreased in the radiation group (0.4938±0.03477)(P＜0.05),and AQP1 was increased after the Tanreqing and dexamethasne treatment(0.6492±0.03477,0.6664±0.03251) (P＜0.05).Conclusion Tanreqing may have beneficial effects on radiationinduced lung injury by regulating AQP1 expression in the lungs of rats.