Objective To study the antibacterial constituents in the fermentation broth of marine actinomyces N331.Methods The antibacterial components were isolated and purified from the fermentation broth of strain N331 by absorption with macroporous resin and silica gel column chromatography,their physiochemical characteristics and bioactivities were preliminarily investigated.Results A crystal ingredient with bioactivities was isolated from the fermentation broth and it was identified as alkaloids which was composed of several compounds with approximate polarity,and its the minimum inhibitory concentration against sensitive and drug-resistant Staphylococcus aureus was 4?g?mL-1,and its half maximal inhibitory concentration(IC50) was 2.0,3.0?g?mL-1 respectively against KB and lung cancer A549 cells,which was equivalent to cisplatin.Conclusion Marine actinomyces N331 can produce the alkaloidal substances with strong antibacterial activity and cytotoxicity.

Objective: To observe the therapeutic efficacy of tuina plus cupping on chronic fatigue syndrome (CFS). Methods: A total of 100 CFS patients meeting the inclusion criteria were randomly divided into a treatment group and a control group according to the random number table in the sequence of visit, with 50 patients in each group. The treatment group was treated with tuina plus cupping therapy, 3 times a week. The control group was given oral tablets of wild American ginseng lozenges. After 3 months of treatment, the score of fatigue questionnaire scale (FS-14) was observed and the efficacy was evaluated. Results: The total effective rate was 92.0％ in the treatment group, versus 76.0％ in the control group and the difference between the two groups was statistically significant (P<0.05). After treatment, the FS-14 scores of the two groups decreased, and the intra-group differences were statistically significant (both P<0.05). The change of FS-14 score after treatment in the treatment group was more significant than that in the control group (P<0.05). Conclusion: Tuina plus cupping is effective for CFS, and can improve fatigue symptoms significantly.

Objective Build the hospital scientific research management platform.Methods According to expenditure process and the management standard requirements,the establishment of a fund management system platform to achieve budget、accounted for,spending and audit feedback function.Results Scientific research funds management platform is mainly composed of project application,project establishment and review,the report query and remittance receipt of financial department.Full consideration of the personnel,project,financial and other related system interface.In the construction of data using the standards of the state and the university scientific research information.Conclusions Through building the hospital scientific research management platform,improving the working efficiency,reducing the labor intensity of the management and financial personnel,realizing the accuracy and effectiveness of management.

Objective To establish the high myopic choroidal neovascularization (CNV) in guinea pigs and to investigate the role of (matrix metalloproteinase-2,MMP-2) and tissue inhibitor-2 of metalloproteinase (TIMP-2) in high myopic CNV.Methods Seventy-two 2-week-old guinea pigs were randomized into control group (n =36) and high myopia group (n =36).Right eyes were indued form deprivation high myopia for 6 weeks.Thirty guinea pigs were randomly selected in each group,and CNV were induced in the right eyes br the 532 nm laser.MMP-2 and TIMP-2 expressions were investigated by immunohistochemistry pre-laser and 7,14,21,28,35 days after laser induction,respectively,while MMP-2 and TIMP-2 relative expression levels in retinal pigment epithelium (RPE)-choroid-sclera complex were detected by real-time PCR.Integral opitical density (IODs) of positive expression and mRNA relative expression levels of these factors were performed by statistical analyses.Results The expressions of MMP-2 and TIMP-2 were up-regulated in the two groups after laser photocoagulation through immunohistochemistry and real-time PCR examinations.Expression of MMP-2 peaked at 21 d and TIMP-2 at 28 d,respectively.IODs of positive expression and mRNA relative expression levels of MMP-2 were higher in high myopia group than those in control group at each inspective time point,and the differences were statistically significant (P ＜ 0.05).TIMP-2 expression was significantly reduced in high myopia group compared with control group before laser photocoagulation (P＜0,05),while there was no significant difference between the two groups at each time point after laser photocoagulation.Conclusions MMP-2 and TIMP-2 were closely related to the formation of high-myopic CNV.Balance disorders of MMP-2 and TIMP-2 might participate in the occurrence and development of high-myopic CNV.

Objective To resolve the difficulty in controlling the transfusion speed by medical personnel.Methods By using liquid drop sampling module,pulsing signals of liquid drop were obtained,and then they were enlarged,shaped and the wrong signals from the top and bottom surface of every drop were excluded before the standard triggered signals were sent out to SCM processing circuit,from which the real-time liquid drop speed and the average drop speed in every minute were obtained.Results Anti-interference and portable transfusion-drop counter could show the real-time liquid drop value and the average liquid drop value in every minute.Conclusion Anti-interference and portable transfusion-drop counter is convenient with simple structure and has been used in clinic.

Objective To understand the basic situation and the influencing factors of medical expenses of the inpatients in Haikou city for the government to developing a scientific control policy of medical expense or improving the existing measures for controlling the medical expense.Methods Totally 463 inpatients from 10 hospitals were conducted the questionnaire survey and the survey data were analyzed.Results The difference of medical costs constituent existed in different medical institutions and the me-dian of drug costs to the total medical costs in general hospital was 42.13%.30.02% (139/463)of the surveyed inpatients thought that the use of “new techniques,new drugs and new equipments”was the primary cause of medical costs rising.51.19%(237/463) of patients thought that the primary considered factor is “cure”when seeing a doctor.24.84%(115/463)of patients did not known the modification of medical insurance policy.46.00%(213/463)and 28.51%(132/463)of patients thought that the main responsi-bility main body for controlling the medical costs rising is government and hospital respectively.Conclusion Increasing the medical insurance policy advocacy,promoting the reform of medical insurance payment methods,strengthening the dominant position of gov-ernment control medical costs and rationally allocating the medical resources conduce to reduce the medical costs rising.

Objective To systematically evaluate the effectiveness of diabetes self-management education through telemedicine on glycosylated hemoglobin (HbA1c). Methods Randomized clinical trials (RCTs) that assessed the effectiveness of remote diabetes self-management education in patients with diabetes were systematically reviewed using multiple electronic databases. The searching time was from database establishment to May 2015. These articles were analyzed after evaluation of their quality. Results Eight RCTs were included involving 2 047 patients.The results of Meta-analysis showed the effectiveness of remote DMSE on reduction of HbA1c of patients with type 2 diabetes was more significant than that of the control group [WMD=-0.50,95%CI (-0.88,-0.12),P < 0.05],while failing to support the effectiveness of remote DMSE on patients with type 1 diabetes [WMD=0.62, 95%CI(-0.19,1.43), P>0.05]. Conclusions Remote DMSE is effective to improve the glycemic control in patients with type 2 diabetes,while the effect on patients with type 1 diabetes is still not certain. Large-scale and multi-centered RCTs are needed to confirm its effectiveness.

AIM: To investigate the effect of low intensity white light irradiation on the retinas of mice.
METHODS: Thirty C57BL/6J mice were randomly divided into two groups. The number of the mice in each group was 15. The mice in experimental group received dark adaptation from 5:00p. m. to 6:00p. m. , and then exposed to LED white light from 6:00p. m. to 7:00p. m. everyday for a month. At 1, 3, 7, 14 and 30d after the beginning, we examed the histology of mice retinas, calculated the thickness of outer nuclear layer ( ONL ) , inner nuclear layer ( INL ) and analyzed electrophysiology of mice.
RESULTS:One month after experiment, compared to the control group, the latency of Rod-R a wave of the mice in experimental group significantly prolonged, the amplitude of Cone-R b wave of the mice in experimental group significantly decreased and the latency of b wave of the mice in experimental group significantly prolonged ( P<0. 05). There are no significant difference in the histology of retina, ONL and INL thicknesses.
CONCLUSION: 100lux low intensity white light could give rise to the impairment of the retinal functions in dark-adapted mice.

Objective To evaluate the clinical effect and safety of retroperitoneal laparoscopic partial nephrectomy in treatment of patients with T1b renal carcinoma.Methods Fourteen patients (11 males and 3 females) with T1b renal carcinoma were retrospectively performed.The age of patients was (54.5 ± 9.2)years old,with 8 cases on the left side and 6 cases on the right side.Tumor diameter was (5.1±1.3) cm.All the patients received retroperitoneal laparoscopic partial nephrectomy.Results None of the 14 cases was converted to open surgery.The operation time was (112.0 ± 24.7) min,the intraoperative blood loss was (64.6 ± 15.9) ml,the warm ischemia time was (26.5 ± 9.3) min.The 14 patients were not blood transfusion in intraoperative and postoperative.Postoperative negative pressure drainage placement time was (3.1 ± 1.5)d,lying in bed time was 72 h.Serum creatinine increase was found in 1 case postoperative 12 h,others were no severe complications.Postoperative pathology:the incisal margin of 14 cases were all negative,clear cell carcinoma was in 13 cases,the pathology stage was T1bNoM0;angiomyolipoma of kidney was in 1 case.All the patients were follow-up 3-16 (21.4 ± 9.6) months,all the patients had normal renal function and had no tumor recurrence or metastasis.Conclusion Retroperitoneal laparoscopic partial nephrectomy is safe and reliable for treatment of patients with T1b renal carcinoma.

Objective To study the effect of glucocorticoid on serum interleukin(IL)-1,IL-6,transforming growth factor-?_1(TGF-?_1) and tumor necrosis factor alpha(TNF-?) in children with primary nephrotic syndrome(PNS).Methods The levels of cytokines on serum were compared in 3 different patho-type,and IL-1,IL-6,TGF-?_1 and TNF-? in serum were detected using enzyme-linked immunosorbent assay(ELISA) in 25 children with PNS before and after treatment with glucocorticoids.Results Significant difference of IL-1,IL-6,TGF-?_1 and TNF-? were found between the two group before and after the treatment(P0.05).The level of TGF-?_1 in MCD was lo-wer than that in MsPNG,FSGS before and after the treatment(P0.05),and the level of it in FSGS was higher than that in MsPNG after the treatment(P