AIM:To investigate the effect of intercostals neural blockade(INB)combining with intravenous dexamethasone on postoperative pain,nausea and vomiting and rehabilitation after laparoscopic cholecystectomy(LC).METHODS:Seventy-two patients with ASA I-Ⅱ undergoing LC were randomly divided into three groups with twenty-four patients in each group.Group DI received intravenous dexamethasone infusion before induction combining with INB.Group I only received INB.Group C was control group.Propofol and remifentanil consumption were recorded,postoperative pain and fatigue were assessed according to a pain and fatigue severity score using a subjective analog visual scale(VAS)1,4,12,and 24 h after the surgery.The incidence of postoperative nausea and vomiting,times to first enterocinesia,flatus and hospital discharge were recorded.RESULTS:Propofol and remifentanil consumption,postoperative pain and fatigue scores 4,12,24 h after surgery,the postoperative nausea and vomiting incidences,times to first enterocinesia and flatus,times to hospital discharge were significantly lower in Group DI and I than those in Group C(P

Objective To construct a plasmid DNA encoding G glycoprotein of respiratory syncytial virus(RSV) and investigate the protective immune response against RSV infection. Methods Recombinant plasmid DNA of pcDNA3.1~G was constructed by standard RT-PCR based cloning procedure. The immunogenicity of recombinant G protein transiently expressed in HEK293 cells was detected by Western blot. BABL/c mice were intramuscularly immunized with pcDNA3.1~G. Samples of lung, sera, bronchoalveolar lavage fluid(BALF) were collected before and after RSV challenge; virus titer in lung was detected by viral titration; sections of paraffin embedding lung tissues were stained by haematoxylin and eosin(HE) for histological analyses; sera anti-RSV IgG levels were examined by ELISA; Th1/Th2 cytokine were detected by ELISA kit, the T lymphocyte subsets of BALF was determined by immunefluorescence staining followed by flow cytometry. Results Plasmid DNA of pcDNA3.1~G was successfully constructed. The expressed target protein possesses immunogenicity. After challenge, pcDNA3.1~G immunized mice presented relieved pathological changes in lung as well as reduced lung viral titers. The RSV specific IgG was detected in sera of immunized mice. There was significantly increased number of CD25~+CD4~+ T cells in mice BALF. Conclusion We constructed a pcDNA3.1~G plasmid DNA vaccination which can induce evident protective cellular immunity against RSV infection in mice with the increased number of CD25~+CD4~+ T cell subpopulation.

AIM: To study the relationship between respiratory syncytial virus (RSV) infection and apoptosis, between RSV infection and expressions of FasL, Fas, Bcl-2 and Bax. METHODS: Apoptotic cells were examined by flow cytometry and transmission electron microscope. Immunohistochemical analysis was used to detect the expressions of apoptosis-associated gene FasL, Fas, Bcl-2 and Bax in A549 cells during RSV infection. RESULTS: Apoptotic index increased at 72 h and 120 h postinfection. Apoptotic cells were detected by transmission electron microscope. High-expressions of FasL, Fas and Bax genes and low-expression of Bcl-2 gene were detected by immunohistochemical staining. CONCLUSION: Apoptosis in A549 cells was induced by RSV infection. This apoptosis may be induced by up-regulating the expression of FasL, Fas, Bax genes and down-regulating the expression of Bcl-2 gene.

The combined teaching method of case-based learning and W2 H2 thinking-type learning was used in the comparative morphology experiment teaching.The teaching method can further strengthen the reform of the compar-ative morphology experiment teaching, and improve the quality of practice teaching.

This study was aimed to establish the TLC identification method of Radix Mirab ilis himalaic a. The β-sitosterol and daucosterol were used as the reference substances. The single-factor test was used. A variety of factors which affected TLC were systematically investigated to filter out the best TLC conditions for identification of different batches of medicines. The results showed that the best TLC conditions were as follows: silica gel G plates, extraction solvent (methanol), reagent (5% sulfuric acid in ethanol), extraction method (ultrasonic extraction with methanol), ex-tracted time (30 min), the agent (petroleum ether-ethyl acetate-acetone (5:2:1)) and sample volume (6 μL). It was concluded that the method, which had high separation degree, was reproducible and simple. It can be used as the quality control of Radix Mirab ilis himalaic a.

This study was aimed to apply the electronic nose (E-nose) in the research of traditional Chinese medicine (TCM). The discussion was made on difficulties of using E-nose. The solution plan was proposed and the discrimination model was established. It provided a simple, rapid and effective analysi method in the identification of TCM. It also provided new ideas for the research and application of gas sensor arrays. E-nose was used in the ex-traction of TCM scent characteristics. Based on ion mobility spectrometry of MOS sensor, the fingerprint of TCM scent was established. The maximum response value of the sensor was used as analysis index. According to the diffi-culties of identification, two solution plans were proposed. Firstly, different detectors were employed to complete the classification. Secondly, radial basis function (RBF) and random forests (RF) were combined and then a cascade classifier was constructed in order to achieve the maximum of information obtained in conditions where the number of measurements, metal oxide semiconductor sensors in E-nose was limited. The results showed that both plans were accurate and practical with relatively high upper correct judge rate and better cross-validation (The highest upper correct judge rates were 95% and 100%, 96% and 80%, respectively). It was concluded that this study firstly ap-plied cascade classifier in the establishment of TCM identification by E-nose. With limited amount of sensors, the maximum information was received through data mining. Using E-nose in the identification of TCM was rapid and accurate. The established pattern recognition method was maneuverable with accurate identification rate and stability compared to conventional sensory identification method. It provided a simple and rapid analysis method for the iden-tification of TCM.

Through the addition of discussion course associated with judicial expertise during the pre medical education, integration of true and typical forensic pathological cases into basic medical theory and experimental education, further addition of optional course of forensic medicine,and guiding the medical students applying the scientifically training projects about forensic pathology, students may improve their learning interesting and clinical thought, and are made early warning and increase the abilities of preventing and dealing with the suddenly medical tangles in the future, at the same time, the medical teachers also increase their professional levels and teaching qualities.These benefit the growing up of high quality medical doctors, decrease and even prevent the happening of medical tangles.

Objective To compare differences and similarities of the content of trigonelline in Himalaica mirabilis of either wild or cultivated materials from different places. Methods An HPLC method was established to determine the content of trigonelline in Himalaica mirabilis. ZORBAX XDB-CN column (4.6 mm×250 mm, 5 μm) was used, with mobile phase of acetonitrile-0.03%acetic acid (85∶15), flow rate of 0.8 mL/min, detection wavelength of 265 nm, determination wavelength of 360 nm, and column temperature of 30 ℃. Results Regression calculation was made on peak area with the reference solution concentration, and then got the regression equation A=23.409C-26.398, r=0.999 8. Trigonelline showed good linear relation with peak area among the range of 2.004-200.400 μg/mL. The average recovery of trigonelline was 99.57%, RSD=1.11%. Conclusion There was no significant difference in the content of trigonelline of either wild or cultivated materials from different places. This study laid the foundation of application of the cultivated Himalaica mirabilis.

Objective To research the relationship between free/total prostate specific antigen (f/t PSA), PSA density(PSAD) and prostate cancer(PCa), to explore healthy middle and old-aged,the patients with BPH, the scope of reference value of PSA,frce PSA(fPSA), f/t PSA and PSAD in patients serum with PCa. Methods To de-tect 307 cases of healthy gerontism male,236 of BHP and 41 of PSA and fPSA in patients with PCa,to calcuLate f/t PSA and PSAD, to investigate the dependability between PSA ,I"PSA ,f/t PSA ,P SAD and healthy male, the patients ofBHP,the PCa ,to determine the scope of reference value PSA,fPSA,f/t PSA and PSAD fitting for Chinese. Results PSA and fPSA in patients with PCa are obviously higher than normal control(P <0.01). f/t PSA is obviously lower than the BPH and normal control(P < 0.01). When PSA is 9.25 and f/t PSA is 20%, there are better value of clini-cal diagnosis,when PSAD is 0.18 (AUC = 0.635), we can get best aceuration of diagnosis. Conclusions f/t PSA and PSAD are better than PSA in clinical diagnosis. When PSA is more than 9.25,f/t PSA is less than 20% or PSAD is more than 0.18 is significance for diagnosis. The normal reference value of PSA less than 9.25,f/t PSA more than 20%, PSAD less than 0.18 is fit for Chinese.

Objective To investigate the influencing factors of cerebral infarction in elderly patients with hypertensive intracerebral hemorrhage after hematoma clearance.Methods A total of 197 elderly patients with hypertensive intracerebral hemorrhage were selected and treated with craniotomy hematoma removal and decompression of bone flap.Cerebral infarction was checked by craniocerebral CT after operation.Univariate and multivariate Logistic regression analysis was used to identify the independent risk factors for cerebral infarction.Results The incidence of cerebral infarction after hematoma clearance in hypertensive intracerebral hemorrhage was 26.90％(53/197).There was no significant difference in the incidence of cerebral infarction after hematoma clearance in hypertensive intracerebral hemorrhage on gender and age (P＞ 0.05),while the differences were statistically significant in diabetes (x2 =7.986),hypertension history (x2 =10.399),hematoma volume(x2=10.396),edema(x2=12.436),systolic blood pressure(x2 =12.128),diastolic blood pressure(x2 =13.040) and GCS score(x2 =3.940) (all P＜0.05).Logistic regression analysis showed that history of diabetes mellitus(β=1.472,0R=2.174,95％CI=1.092-2.981),history of hypertension (β =1.894,OR =2.819,95 ％ CI =1.309-3.973),volume of hematoma ＞ 35 ml (β =2.36 l,OR =3.890,95％CI=1.792-5.132),area of brain edema (＞ 65 cm3) (β=2.471,OR=4.321,95％CI=1.879-5.487),systolic pressure (＞ 150 mm Hg,1 mmHg =0.133 kPa) (β=2.073,OR=3.172,95％ CI=1.428-4.768),diastolic pressure (＞ 90 mm Hg) (β=1.715,OR=2.498,95％ CI =1.276-3.451) and GCS score ＜ 8 (β=2.592,OR=4.871,95％ CI=1.974-5.798)were independent risk factors for cerebral infarction after hematoma clearance in hypertensive intracerebral hemorrhage.Conclusion Elderly patients with cerebral infarction after hematoma clearance in hypertensive intracerebral hemorrhage is affected by diabetes mellitus,hypertension,hematoma volume,edema,systolic blood pressure,diastolic blood pressure and other factors.Early intervention on these factors may effectively reduce the incidence of cerebral infarction.