OBJECTIVE:To compare the clinical effects of two isomates of glycyrrhizic acid on patients with hemorrhagic fever with renal syndrome(HFRS) METHODS:78 patients with HFRS were randomized into two groups:A and B Patients of group A and group B were given ?-glycyrrhizic acid(Diammonium Glycyrrhizinate) and ?-glycyrrhizic acid(Stronger Neo-Minophagen C) intravenously,respectively The clinical parameters such as rate of phase-skip,etc were observed and compared between two groups RESULTS:The rate of phase-skip in group B was higher than that in group A with significant difference(P

OBJECTIVE To investigate the expression and significance of Fas, FasL and FADD in laryngeal carcinoma. METHODS Immunohistochemical method was used to examine the expression of Fas, FasL and FADD in laryngeal carcinoma specimen and adjacent normal tissues. RESULTS The positive rates of Fas and FADD in laryngeal carcinoma tissue were significantly lower than that in adjacent normal tissue, while FasL in laryngeal carcinoma tissue was higher than that in adjacent normal tissue(P

Objective To investigate the effects and probable mechanism ofShenfu injection on the oxidaitve damage of H2O2-induced PC12 cells.Methods PC12 cells were cultured and exposed to 100μmol/L H2O2 for 1 h to establish the oxidative damage model. The protective effect ofShenfu injection was observed by the cell survival rate measured by colorimetric MTT assay, and the leakage rate of lactic dehydrogense (LDH). Western blot methods were used to detect the expression of NF-κB signaling pathway.Results Compared with the model group,Shenfu injection at 5, 10, 20 ml/L could improve the PC12 cells survival rate (83.11% ± 2.59 %, 87.99% ± 0.59%, 85.26% ± 1.07%vs. 73.82% ± 1.82%;P<0.01 orP<0.05), decrease the LDH leakage rate (32.75% ± 4.10%, 28.52% ± 1.14%, 35.79% ± 1.62%vs. 64.34% ± 3.18%;P<0.01 or P<0.05). Western blot results showed thatShenfu injection could protect the PC12 cells from oxidaitve damage by suppressing the p-p65/p65 (1.30 ± 0.10, 1.17 ± 0.06, 1.37 ± 0.15 vs. 1.70 ± 0.10;P<0.01 orP<0.05), p-IκBα/IκBα (1.07 ± 0.12, 1.00 ± 0.10, 1.03 ± 0.06 vs. 1.17 ± 0.06; P<0.01 orP<0.05).ConclusionShenfu injection has a obvious antioxidant effect on PC12 cells in vitro.

Ursolic acid, a pentacyclic triterpene compound, naturally occurs in a large variety of plants, has at-tracted considerable interest owing to its significant biological activities. In recent years, more and more scientists have been working on the structural modification at the C-3 position , C_(12)-C_(13) double bond or C-28 position of ur-solic acid in order to improve their biological activities. Herein a brief introduction of the recent progresses on the chemical structural modification and the structure-activity relationship of ursolic acid and its derivatives are re-viewed.

Objective To explore the relationship between microRNA (miRNA)-200c expression,epithelial-mesenchymal transition (EMT) and the sensitivity to gefitinib in colon cancer cells.Methods The inhibitory effects of gefitinib on four types of colon cancer cell lines (HT29,SW620,HCT1116,SW480) were examined by cell counting kit-8 (CCK-8) assay.The expressions of miRNA-200c,epithelial marker (E-cadherin) and mesenchymal markers (vimentin and zinc finger Ebox binding homeobox 1 ZEB 1) at mRNA level in four types of colon cancer cell lines were detected by fluorescence quantitative polymerase chain reaction.The expressions of E-cadherin,vimentin and ZEB 1 at protein level were determined by Western blot.After up-or down-regulated the expression of miRNA-200c,the changes of the expression of EMT related genes and the sensitivity to gefitinib were observed.Results HT29 cells were most sensitive to gefitinib (IC50 =(7.70 ± 0.31) μmol/L),in which the expressions of both miRNA-200c and E-cadherin were the highest,and the expressions of vimentin and ZEB1 were extremely low.HCT116 and SW480 were moderately sensitive to gefitinib (IC50=(11.88±0.97) and (16.63±0.45) μmol/L),and the expressions of miRNA-200c and Ecadherin were moderate.SW620 cell line was most insensitive to gefitinib (IC50 =(26.43 ± 3.68)μmol/L),the expressions of miRNA-200c and E-cadherin were the lowest.The expressions of vimentin and ZEB 1 in SW620 were higher than that of the other three types of cell lines.After upregulated the expression of miRNA 200c,the expression of E-cadherin in SW620 cells increased,the expression of ZEB 1 and vimentin decreased,and the sensitivity to gefitinib increased.After downregulated the expression of miRNA-200c,the expression of E-cadherin in HT29 cells decreased,the expression of ZEB 1 and vimentin increased,and the sensitivity to gefitinib decreased.Conclusion miRNA-200c may up-regulate the expression of E-cadherin through EMT regulation,and then influence the sensitivity to gefitinib in colon cancer cells.

Objective To study the stability of alkaline and degraded products of curcumin by high performance liquid chromatography(HPLC) and HPLC-mass spectrometry (MS) for the optimization of alkaline-dissolved process parameters of the Jianghuang Qingzhi Tablets and for the quality control of the tablets.Methods HPLC was performed for the determination of the alkaline-dissolved stability of curcumin with acetonitrile-acetic acid at volume coefficient of 4％ (48 ∶ 52) as mobile phase,the detection wavelength being 430 nm.The alkalinedegraded products were tested by HPLC-MS assembling with electron spray ionization (ESI) and quadrupole timeof-flight (Q-TOF) in the scan range of 100-2 000 m/z.Results The degradation of curcumin in the alkaline solution was increased with the temperature.When the temperature was below 20 ℃,the degradation slowed down,while when the temperature reached to 80 ℃,curcumin was degraded completely within 2 h.The probable degradation products in the alkaline solution were p-hydroxy benzaldehyde,vanillin,p-coumaric acid,ferulic acid,et al.Conclusion Curcmin compounds are instable in aqueous alkali.To obtain the high-quality of Jianghuang Qingzhi Tablets with high content of curcumin and less degraded products,the alkaline-solution temperature should be controlled below 20 ℃.

Objective To study the value of EUS-FNA cytology and fluid carcinoembryonic antigen (CEA) for differential diagnosis of malignant and benign pancreatic cystic lesions.Methods Data of 27 patients who underwent EUS-FNA were reviewed.According to Youden exponent,the optimal cut-off points for cyst fluid CEA were determined by receiver operating characteristic (ROC) curve.Compared with surgical pathology,the accuracy,sensitivity,specificity,positive predictive value (PPV) and negative predictive value (NPV) of the EUS imaging,cytology as well as cyst fluid CEA were determined.Results Of the 27 cases,14 were diagnosed as benign lesions,13 were diagnosed as malignant or premalignant lesions.The accuracy,sensitivity,specificity,PPV and NPV of EUS imaging were 77.8％ (21/27),69.2％(9/13),85.7％ (12/14),81.8％ (9/11) and 75.0％ (12/16).The accuracy,sensitivity,specificity,PPV and NPV of EUS-FNA cytology were 85.2％ (23/27),76.9％ (10/13),92.9％ (13/14),90.9％ (10/11),and 81.3％ (13/16).The corresponding values of fluid carcinoembryonic antigen under the ROCderived ideal cut-off were 74.1％ (20/27),84.6％ (11/13),64.3％ (9/14),68.8％ (11/16) and 81.8％ (9/11) (CEA ＞ 22.24 ng/ml).Conclusion EUS-FNA cytology is highly accurate and specific for differential diagnosis of malignant and benign pancreatic cystic lesions.Cyst fluid CEA shows better sensitivity.EUS-FNA cytology and cyst fluid CEA analysis can basically meet the requirement of differentiating the benign and (pre)malignant pancreatic cystic lesions.

Objective To investigate the expression of miR-133b in the brain of methamphetamine(MA) dependent rats and its regulatory effects on neuronal toxic injury.MethodsThrough continuous intraperitoneal injection to rats with MA(10 mg/kg),the conditioned place preference(CPP) rats model was established,and the expression of miR-133b in the cerebral cortex of model rats was detected by real-time fluorescence quantitative PCR(RT-PCR).PC12 cells were cultured in vitro and treated with MA(800 μmol/L),and then miR-133b expression in cultured neurons was detected.miR-133b mimics and inhibitor were transfected to PC12 cells respectively to observe the effect of miR-133b on the mitochondrial membrane potential(MMP) of cultured neurons.ResultsAfter continuous intraperitoneal injection with MA for 14 days,the residence time of rats in the box with medicine((620.20±44.80)s) was significantly longer compared with the control group((341.80±25.12)s,P<0.01),which showed that MA dependent rats model was successfully established.The RT-PCR detection results showed that the expression of miR-133b in the cerebral cortex of model rats(0.36±0.05) significantly decreased compared with the control group(0.99±0.08,P<0.01).In the in vitro model,most of the neuronal cell bodies became round and the neuorites were withdrawn after MA treatment.Compared with the control group(1.00±0.02),the RT-PCR detection results showed that the expression of miR-133b in MA group(0.74±0.05) decreased(P<0.05).The JC-1 detection results showed that the MMP of the MA group(109.85±7.03) decreased significantly contrast to the control group(36.49±3.89,P<0.01),the MMP of the miR-133b mimics group(58.97±6.56) increased significantly contrast to the mimics control group(135.46±15.04,P<0.01) and the MMP of the miR-133b inhibitor group(162.84±14.15) decreased contrast to the inhibitor control group(139.81±12.26,P<0.05).ConclusionsThe expression of miR-133b in the cerebral cortex of MA dependent rats and in vitro neuron model treated with MA are significantly downregulated.By regulating the expression of miR-133b,the MMP damage of cultured neurons treated with MA is changed,indicating that miR-133b is not only involved in the nerve injury induced by MA,but also possiblely as a molecular target for intervention.

目的探索脑瘫患儿早期发现、早期干预的工作模式。方法临床、保健、康复相结合 ,采用产前检查、孕妇学校、产时儿科医生进产房、新生儿行为神经评定测定、高危儿抚触训练室、婴儿期儿童保健监测、各街道防治站常规体检筛查转诊等多种形式结合早期发现并干预脑瘫高危儿。结果此工作模式较模式前显著提高了脑瘫的早期诊断率及康复疗效。结论临床、保健、康复相结合的方式整合了医疗资源,起到了促进脑瘫早发现、早诊断、早治疗的作用 ,值得推广。

Objective To investigate the common types of fetal cardiac malformations and complicated malformations,and to assess the value of classifying on these types.Methods 3201 pregnant women were undergone with fetal echocardiography (FECG),239 fetuses of them were diagnosed to be suffered with congenital heart disease(CHD),and 8 cases were one of twins with abnormal heart confirmed by FECG.All new-births were examined by echocardiography within half year after their births.Results 155 complex CHD in 239 fetuses were diagnosed by FECG,in them the common malformations were in turn 59 cases with diagnosed univentricular heart,29 cases with double outlet right ventricle,19 with atrio ventricular septum defect,12 with tetralogy of Fallot or quinalogy of Fallot,11 with persistent truncus arteriosus,6 with right ventricular dysplasia syndrome,6 cases transposition of the great vessels.100 cases were induced labor,41 of them were comfirmed by pathology.16 fetuses were born,123 cases were being pregnanted or un-followed up.Conclusions Complex and multi-malformation were common in fetal cardiocascular abnormalities.Diagnosing rate of fetal CHD(FCHD) in our enroll fetuses was 7.47 ％,rate of complex CHD vs CHD was 64.85 ％.According different types of FCHD,able to be operated or not after birth,surgery methods,as well as prognosis evaluations,all FCHD cases were classified into three subtypes:curable type,curable palliative type and untreatable type.This newly viewpoint will help pregnant women and their family to make reasonable selection.