Objective In order to protect the natural resources of Swertia bimaculata which has been destroyed seriously,the method of artificial propagation by way of tissue culture have been systematically studied.Methods The stems,leaves,and stems with buds which were from the seedlings germinated from the seeds on the initial medium were taken as explants.These explants were cultured on MS culture media by adding different portions of hormones at various cultural conditions.Results The stems were the best material in speeding propagation among the three explants.The proper initial medium for the stems was MS+ BA 0.5 mg/L+saccharose 3.0%,the optimum medium for proliferation was MS+BA 0.5 mg/L+IBA 0.1 mg/L+saccharose 3.0%,and the best medium for rooting was 1/2MS+NAA 0.5 mg/L+saccharose 1.5%.Conclusion Tissue culture of S.bimaculata could make its propagation rapid,its resources preserved,and its utilization last.

Twenty six patients with liver cancer who received liver transplantation were enrolled in the study. The patients were assessed by SF-36 scale and QOL-LC V2.0 scale before and 0 -6, 7 - 12, > 12 months after the liver transplantation. Scores in physical function domain and social function domain decreased significantly in the early stage post LT (0 -6 month post-LT). While in later stage ( >7 months post-LT), the scores showed no significant difference or even higher than that of pre-LT. In psychological function domain, no significant difference was found pre- and post-LT. The scores were improved significantly in later stage post-LT than pre-LT and early stage post-LT.

OBJECTIVE To explore occurrence, distribution,and resistance profile of ?-lactamases in clinical isolates of Enterobacter cloacae for rational use of antibiotics in clinic. METHODS Susceptibility test to 13 antibiotics was also performed through disk diffusion test.ESBLs were conformed according to NCCLS.DIDST test was adopted to detect AmpC ?-lactamases in E.cloacae isolates. RESULTS Among 78 isolates collected,13(14.9%) produced AmpC ?-lactamases,24(27.6%) produced ESBLs,10(11.5%) produced both ?-lactamases.These produced(?-lactamases) strains resisted to almost all ?-lactams,except for imipenem.The ?-lactamases producers possessed seriously multi-and cross-drug resistance. CONCLUSIONS ESBLs and AmpC ?-lactams are the main mechanism of E.cloacae resistance to antibiotic.

OBJECTIVE:To prepare risperidone injectable biodegradable implants and study its in vitro release. METHODS: Polylactide-co-glycolide copolymer(PLGA)was chosen for carrier and N-Methyl pyrolidone(NMP)as solvent to prepare risperidone injectable biodegradable implants. The percentage of accumulative drug release within 30 days,the change in molecular weight of copolymer and superficial opening diameters of copolymer in function time were observed. RESULTS:Drug release curve of risperidone injectable biodegradable implants for 30 days was stable with small burst. The percentage of accumulative drug release was 89.01% and the percentage of burst accounted for 13.8% at the first 24 hours. The average molecular weight of copolymer decreased to about 10 000 from 43 000 after 30 days and the size of the superficial openings became larger and larger. CONCLUSION:Risperidone injectable biodegradable implants can release continuously and stably in vitro for 30 days.

Objective To investigate the effect of hyperthermia on human hepatocellular carcinoma cell line SMMC-7721 after down-regulating the expression of mTOR,and its possible mechanisms.Methods An antisense mTOR (mammalian target of rapamycin) gene eukaryotic expression vector was transfected into SMMC-7721 cells.The expression of mTOR mRNA and protein were detected using RT-PCR and Western blotting,respectively.Hyperthermia was applied after the transfection,and the vitality of cell proliferation was evaluated using CCK-8 assays and the clone formation rate was determined by colony-forming assays.The migration of SMMC-7721 cells was measured using scratch assays.Apoptosis and the cell cycle were analyzed by flow cytometry.Results The expression of mTOR mRNA and protein were significantly decreased after transfection,indicating that the antisense vector could down-regulate the mTOR gene effectively.The proliferation,clone formation and migration of SMMC-7721 cells all were decreased markedly by hyperthermia after transfection.Flow cytometry showed that the rate of apoptosis was significantly increased.The number of cells in the S phase was increased and the cell cycle was induced to arrest at the S phase.Conclusions Down-regulating the expression of mTOR can increase the thermosensitivity of SMMC-7721 cells.The mechanism involves increased apoptosis and S phase arrest.

Objective:To introduce the application and practice of information technology in the pharmacy management of our hos-pital in order to provide reference for fine hospital management. Methods: The difficulties and application experience of information technology in the practice of hospital storeroom, pharmacy and medication management were summarized and analyzed. Results: The introduction of information and automation technology was beneficial to the improvement of work efficiency, prevention of medication er-rors, reduction of the incidence of clinical irrational drug use and improvement of patient treatment service quality. Conclusion:Imple-menting information-based pharmacy management is not only a new idea and method in hospital pharmacy development, but also the in-evitable tendency of the times.

Objective:To provide microsurgical anatomy data in the course, branch, distribution, arterial network profile of the submental artery and the range of the flap excision in submental flap transplantation.Methods:From March, 2015 to March, 2020, a total of 36 head and neck cast specimens were studied. Acrylic-butadience-styrene plastic (ABS) filler were perfused into the external carotid artery to make cast specimens. The course, branching, distribution and the arterial framework of the submental artery under a surgical microscope were investigated.Results:The submental artery originated from the facial artery before reaching the lower edge of the mandible (1.50±0.50) cm, with a diameter of (1.50±0.85) (0.6-2.3) mm. The main trunk of submental artery was (5.5±0.5) cm in length, which ran forward along the lower edge of the mandible and branched out (9.0±3.0) (7-13) branches with diameters between 0.1-0.5 mm, and mainly distributed to skin and superficial fascia of the submental area. The main trunk of submental artery divided into ascending, horizontal and descending branches about 3.0 cm of the midline of the mandible. The ascending branch went upwards over the lower edge of the mandible and joined up with the lower labial arch or participated in the formation of the lower labial arch; the horizontal branch divided into several branches and joined up with the branches from the opposite side; the descending branch branched posteriorly and inferiorly, joined up with branches of lingual artery and superior thyroid artery. The branches of the submental artery and the branches of the peripheral arteries were joined up in the submental area to form the submental artery network. The diameter of the vessels in the network ranged 0.1-0.2 mm. The arterial network was built in the form of 1 to 3 layers, and the area of main network was about 7.0 cm×5.0 cm.Conclusion:The submental artery has a long trunk, many branches and abundant anastomoses between the branches, forming a dense submental artery network, which provides sufficient pedicle length, rich blood supply and cutting area for submental flap. The flap can be transplanted free or transposed. The best location of submental flap is near the midline of arterial network, and the appropriate area is 7.0 cm×5.0 cm.

16,95% CI 0.074-0.628 ,P<0.05) and diabetes mellitus history(RR=3.023,95% CI 0.998-9.157,P≤0.05).

[Objective] To investigate the incidence and risk factors for posttransplantation anemia (PTA) following kidney transplantation. [Methods] A retrospective cohort study reviewing the medical records of the patients who received a renal transplant at our center from January 2004 to June 2008 was performed. All possible risk factors for PTA were recorded. Outcomes among the patients with PTA were compared with those without PTA using t-test and chi-square analysis methods. Logistic regression analysis was done to rank the relative risk of potential variables and calculate the 95% CI. [Results] Prevalence of PTA in our center was 31.0% (hemoglobin <120 g/L or Hct< 0.38 for males, < 110 g/L or Hct < 0.35 for males). Univariate and Logistic regression analysis revealed that the risk factors for PTA after kidney transplantation were female (RR=8.738; 95%CI 2.558～29.853; P= 0.001), creatinine level (RR=1.035; 95%CI 1.018～1.052; P<0.001) and acute rejection (RR=19.827; 95%CI 2.056～191.19; P=0.01); [Conclusions] PTA is a frequent complication after kidney transplantation. Great attention should be paid to this complication considering its negative effect on graft function. Female, impaired renal function and acute rejection are risk factors of anemia in kidney transplantation recipients.

Foreign specialist physician system has been implemented for more than 100 years. China piloted its own specialist physician system from 2004. The article compared foreign specialist physician system with China’s pilot system. Combined with TCM clinical characteristics and laws, the article also discussed to set up Chinese medical specialist system which is in accordance with both international conventions and TCM laws of development as well as docking the pilot system.