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Table of Content

    Volume 17 Issue 7
    26 July 2012
    Concentration change of NE, 5-HT and their metabolites in brain tissue in schizophrenia developmental models rat repeatedly treated with MK-801
    TANG Ya-mei, ZHANG Xiang-hui, LIU Yong
    2012, 17(7):  721-726. 
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    AIM: To explore the related neurobiochemistry pathomechanism by the comparison of concentration of norepinephrine (NE), 5-hydroxytryptamine (5-HT) and their metabolites in brain tissue in the schizophrenia (SZ) developmental model rats. METHODS: 24 neonatal male Spragur-Dawley (SD) rats were randomly assigned at the postnatal day 6 to 3 groups: a SZ developmental model group (subcutaneous injection with MK-801 at the postnatal day 7-10, 0.1 mg/kg bid), a chronic medication model group (intraperitoneal injection at the postnatal day 47-60, 0.2 mg/kg,qd) and a normal control group (injection with 0.9% normal saline during the corresponding periods). NE, Methoxyhydr-oxyphenylglycol (MHPG), 5-HT and 5-hydroxyindo-leacetic acid (5-HIAA) of the tissue homogenate from the medial prefrontal cortex (mPFC) and hippocampus were examined with Coularray Electrochemic detection for high performance liquid chromatogram (HPLC) technique. Meanwhile, the utilization rate of NE and 5-HT was calculated. RESULTS: The NE and 5-HT concentration in the mPFC were significantly increased in SZ chronic medication model group compared with in normal control and SZ developmental model group, respectively (P<0.01 or 0.05); the 5-HIAA concentration in the mPFC were significantly increased in both SZ chronic medication and SZ developmental model group compared with in normal control group, respectively (P<0.01 or 0.05); compared to normal control and SZ chronic medication model group respectively, the MHPG concentration and NE utilization rate were significantly increased (P<0.05), and the 5-HT and 5-HIAA concentration were significantly decrease in hippocampus in the SZ developmental model group, respectively (P<0.01 or 0.05). CONCLUSION: The activity of 5-HT systems in the mPFC and hippocampus and NE systems in the hippocampus were decreased in SZ developmental model group.
    Study on the antioxidant effects of β-elemene
    MAO Li-fei, HUO Wei-min, LIU Jun, SHANG Jing
    2012, 17(7):  727-731. 
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    AIM: To investigate the role of β-elemene as an antioxidant in the damage of HUVEC and hyperlipemia quail. METHODS: Human umbilical vein endothelial cell (HUVEC) was treated either with 0.5 mmol/L of H2O2 alone or with β-elemene for 24 h followed by 0.5 mmol/L of H2O2 for 2 h. The contents of superoxide dismutase (SOD), malondialdehyde (MDA) and reactive oxygen species (ROS) were measured; Hyperlipemia model of quail were established by feeding high fat diet. The levels of SOD, MDA and nitric oxide(NO) in the serum were measured. RESULTS: The levels of ROS and MDA decreased while the level of SOD increased in HUVEC after treated with β-elemene. Compared with the model group, β-elemene decreased serum MDA level, increased serum SOD activity and NO level of quail significantly. CONCLUSION: β-elemene mediates antioxidant effects on the oxidative stress induced by H2O2 in vitro; β-elemene has preventive effect on hyperlipemia quail.
    Effect of cyclooxygenase 2 inhibitor on ventilator-induced lung injury in rats
    JIN Li-da,WANG Liang-rong, XIONG Xiang-qing, LIN Li-na, SHAN Yuan-lu, ZHOU Jun-hui
    2012, 17(7):  732-735. 
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    AIM: To investigate the effect of cyclooxygenase 2 inhibitor on ventilator-induced lung injury in rats. METHODS: Thirty healthy adult male SD rats weighing 300-350 g were randomly divided into 3 groups (n=10 each): group TV (traditional tidal volume VT = 8 mL/kg); group HV(high tidal volume VT=40 mL/kg); group HV+NS398(pretreated with NS398 8 mg/kg before ventilating). The animals were anesthetized with intraperitoneal 20% urethane 8 mL/kg, tracheotomized, intubated and mechanically ventilated for 4 h. Group HV+NS398 was given with intraperitoneal injection at 30 min before mechanical ventilation. The animals were sacrificed at 4 h after mechanical ventilation. The lungs were removed for determination of bronchoalveolar lavage fluid (BALF) TNF-α, IL-6, TXB2, total protein concentration, wet to dry weight ratio (W/D). Expression of aquaporin 1(AQP1) was analyzed by Western Blot. RESULTS: Expression of AQP1 was decreased significantly in group HV than that in group TV(P<0.05). The BALF concentration of TNF-α, IL-6, TXB2, total protein and W/D were higher in group HV than those in group TV(P<0.05). Cyclooxygenase-2 inhibitor significantly attenuated the HV-induced changes listed above in group HV+NS398. CONCLUSION: Cyclooxygenase 2 inhibitor attenuates ventilation-induced lung injury in rats. Its mechanism might relate to upregulate expressionof aquaporin 1and lessen inflaming response.
    Protective effect of 23-hydroxybetulinic acid against doxorubicin-induced cardiotoxicity through the antioxidant activity in H9c2 cells
    HAO Gang, ZHOU Fang, LIU Jia-li, WANG Guang-ji, SANG Guo-wei, YE Wen-cai
    2012, 17(7):  736-743. 
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    AIM: To investigate the potential protective effects of 23-hydroxybetulinic acid (23-HBA) on doxorubicin (DOX)-induced cardiotoxicity and the underlying mechanisms. METHODS: H9c2 cells were treated with DOX, 23-HBA, or their combinations, cell size and protein content were determined to evaluate the cardiac hypertrophy induced by DOX. Expression of ANP and BNP mRNA were studied by Real-time PCR. DOX-induced caspase-3 activation and apoptosis were further studied. Oxidative stress and lipid peroxidation were determined to evaluate the potential mechanism of the cardioprotective effect of 23-HBA. RESULTS: 23-HBA remarkably reduced the mRNA level of ANP and BNP induced by DOX, and reversed the cardiac hypertrophy caused by DOX treatment. Caspase-3 activity also significantly reduced when combined treated with 23-HBA and DOX compared to DOX treatment. Further studies showed that 23-HBA exerted its cardioprotective effect on DOX through decreasing the intracellular ROS and MDA amount. CONCLUSION: 23-HBA protected H9c2 cells against the cardiotoxicity of DOX, and the reduction of oxygen free radicals in cardiac myocytes may be the underlying mechanism mediating the protective effect of 23-HBA.
    The role of downregulation of insulin receptor substrate 1 in the invasion and metastasis of head and neck squamous cell carcinoma
    LUO Xuan, HUANG Wen-bin, ZHAI Su-lan, MA Zhuo, LI Ping, WANG Xue-rong
    2012, 17(7):  744-749. 
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    AIM: To explore the role of insulin receptor substrate 1 (IRS-1) in the invasion and metastasis of head and neck squamous cell carcinoma(HNSCC) and potential mechanism. METHODS: IRS-1 mRNA expression in the metastatic lymph node and corresponding primary tumour tissues of HNSCC patients, in highly and poorly metastatic HNSCC cells were detec-ted byqRT-PCR. miR-9 and U6 expression were measured by the TaqMan microRNA qPCR. IRS-1 expression was downregulated by using siRNA. The effect of IRS-1 on cell invasive potency was examined by transwell invasion assay after IRS-1 interference. E-cadherin and vimentin were detected by qRT-PCR and Western blot. Cell survival rate was examined by SRB assay. RESULTS: IRS-1 mRNA expression decreased in the metastatic lymph node tumor tissues compared to primary tumor tissues of HNSCC patients(P<0.05). As well, its expression levels were lower in highly metastatic HNSCC cells compared to its parental poorly metastatic cells(P<0.05). IRS-1 knockdown promoted invasion of poorly metastatic 686LN cells and induced EMT in parallel with upregulation of miR-9 expression. CONCLUSION: Downregulation of IRS-1 may promote invasion and metastasis of head and neck squamous cell carcinoma by epithelial-mesenchymal transition and upregulating miR-9 expression.
    Influence on cell proliferation and invasiveness of human astrocytic glioma cell line SHG-44 by baicalein
    MAO Jie, SHENG Li-li, XU Shan-shui, WANG Xuan-zhi
    2012, 17(7):  750-754. 
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    AIM: To investigate the influence on cell proliferation, apoptosis, cell cycle and cell invasiveness after human astrocytic glioma cell line SHG-44 were treated by baicalein with the valious concentrations. METHODS: Human astrocytic glioma cell line SHG-44 were cultured in vitro and treated in various concentrations of baicalein, then MTT method, flow cytometer (FCM) analysis, transwell assay and Western Blot were applied to measure cell growth, cell cycle and cell invasiveness. RESULTS: Bacalein treatment inhibited proliferation of SHG-44 cells in a time and dose-dependent manner. Baicalein treatment induced increasing apoptosis in a dose-dependent manner. Compared with the control, Baicalein caused a significant G0/G1 phase arrest (P<0.05) and a decrease in the percentage of cells in S-phase by approximately 18% (P<0.05) in a dose-dependent manner. No significant change for G2/M phase cells was observed. The result of Transwell assay exhibited that cell number through the artificial basal membrane was obviously less when compared with the control after 48 hours (P<0.05). CONCLUSION: Bacalein treatment inhibited growth of SHG-44 cells in a time and dose-dependent manner. Baicalein can inhibit cell invasion and migration of human astrocytic glioma cell line SHG-44. Bacalein may be a useful therapeutic strategy for hum astrocytic glioma.
    Pharmacokinetics of different nitrendipine tablets in rats
    SUN Jia-lin, SONG Jun-ke, XING Cheng, LV Yang, DU Guan-hua
    2012, 17(7):  755-760. 
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    AIM: To study the pharmacokinetics of different nitrendipine tablets in rats. METHODS: An LC-MS method was established for the detection of nitrendipine in plasma after a single oral dose of 50 mg/kg nitrendipine tablets. Pharmacokinetics parameters were calculated by DAS 3.0 data-processing system. RESULTS: Determination results of the three bulk drug manufactures indicated that nitrendipine form Ⅳ had a higher absorption and bioavailability than nitrendipine form Ⅰ which was commonly used. Pharmacokinetic parameters of the 16 products selected randomly from different industries were different after a single dose of 50 mg/kg. Maximum differences of Cmax,tmax,t1/2, AUC(0-t) came up to 2.5, 24.4, 4.5 and 1.6 times. CONCLUSION: There are differences among the pharmacokinetics of different nitrendipine tablets in rats. Crystal form is a principal element leading to the discrepancies
    Two non-parametric methods and its comparation for calculating median difference and its confidence interval
    LI Yun-fei, WANG Kun, HUANG Ji-han, SHENG Yu-cheng, HE Ying-chun, ZHENG Qing-shan
    2012, 17(7):  761-767. 
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    AIM: To introduce two nonparametric methods (Bootstrap and Hodges-Lehmann) for calculating median difference and its confidence interval; the results of these two methods were compared under three pairs of data from three different distributions, and the reason of the difference was discussed. METHODS: Two groups of data were generated from each normal, lognormal and bimodal distribution by computer simulation. The median difference and its confidence interval of each pair were calculated by the two nonparametric methods. This process was repeated for 500 times. RESULTS: The results of the two methods were nearly when data follow normal distribution and it's also agree with the results of parametric method by using mean instead median. For lognormal distribution, the estimated value of median difference and its confidences interval calculated by Bootstrap was larger than the results of Hodges-Lehmann. The results of the two methods was nearly when data distribution was symmetric while the confidence interval was slightly different. CONCLUSION: The two methods are coincident in symmetric distribution. However, Bootstrap emphasizes the position of median while Hodges-Lehmann cares the variance in the case of asymmetric distribution.
    Effect of octreotide on maintaining treatment of esophageal and gastric fundus varices hemorrhage: A meta-analysis
    WANG Hua-fu,DING Ting, SHANG Zhen-qiu, GUI Zhi-hong, LIN Hui-ping, SUN Hui-lin
    2012, 17(7):  768-772. 
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    AIM: To evaluate the effect of octreotide on maintaining treatment of esophageal and gastric fundus varices hemorrhage (EVB). METHODS: PubMed, EMBase, Web of Science and The Cochrane Central Register of Controlled Trials from 1994 to 2011 (up to October), and China Journal Full-text Database, Chinese Technologic Journal Database (Weipu), Wan Fang Digital Journal Full-text Database from 1994 to 2011 (up to October) were retrieved in order to collect clinical randomized controlled trials regarding the effect of octreotide on maintaining treatment in EVB patients. Statistical analysis was performed by meta-analysis using Review Manager 4.2.10. RESULTS: Ten articles were included that contains total 810 patients with EVB (410 patients treated with octreotide and 400 patients treated with pituitrin). The total effective rate of octreotide group was higher than that of pituitrin group, especially of the remission rate OR=0.29(0.20-0.42, P<0.01) and the significant remission rate OR=2.60(1.65-4.10, P<0.01). CONCLUSION: Combined with conventional therapy, octreotide can improve the clinical remission rate in EVB paitents, and is superior to pituitrin.
    UPLC-MS/MS determination of tamoxifen and its metabolites in human plasma and application
    HU Dong-li,CHEN Yao, SHEN Jie, XIE Hai-tang, QIAN Rong-hua,TAN Zhi-rong, WANG Yi-cheng, WANG Dan, ZHOU Hong-hao
    2012, 17(7):  773-778. 
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    AIM: To develop a UPLC-MS/MS method to determine the concentration of tamoxifen and its metabolites in human plasma and application. METHODS: The equipments were Waters AcQuity ultra-high performance liquid chromatography with API4000 type triple quadrupole mass spectrometer , Thermo Hypurity C18 column (150 mm×2.1 mm, 5 μm) was used in the experiment.10 mmol/L ammonium formate-acetonitrile(40∶60, V/V) was used as mobile phase and the flow rate was 0.3 mL/min, the injection volume was 10 μL, the column temperature was 30 ℃ and the sample room temperature was set at 5 ℃.The concentrations of tamoxifen and its metabolites were monitored by Mass with ESI source in positive ion mode and multiple reaction monitoring (MRM) way. RESULTS: Solid phase extraction method was used for sample preparation, tamoxifen, ND-Tam and TamNox were linear range from 1-400 ng/mL, 4-OH-Tam and 4-OHND-Tam were linear range from 0.4-160 ng/mL and 2-800 ng/mL respectively, the limitation of tamoxifen and its metabolites were about 1-2 ng/mL, some even less than 0.4 ng/mL,the method was high sensitivity, stability and specificity and has already been used for determination of tamoxifen and its metabolites in human successfully. CONCLUSION: The method is simple, accurate, repetitive for the determination of tamoxifen and its metabolites in human plasma and suitable for the concentration monitoring in clinic, present study also provide technical method for pharmacogenetics research.
    Development of pyrosequencing method for detection of ABCG2 polymorphisms
    WAN Zi-rui, XIE Hai-tang, YU Jing, LIU Ying-zi, ZENG Fei-yue, WANG Guo
    2012, 17(7):  779-784. 
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    AIM: To establish a pyrosequencing based method for detection ABCG2 34G>A and 421C>A polymorphisms and to determine the frequency of these polymorphisms in healthy Chinese. METHODS: After preparation of gDNA from blood of 200 subjects, the target fragments were amplified by PCR, polymorphisms were detected on PyroMark ID by pyrosequencing technology. The reliability of pyrosequencing methods were validated by repeat tests and Sanger sequencing. RESULTS: We established a new pyrosequencing method to detect the ABCG2 34G>A and 421C>A polymorphisms polymorphisms in healthy Chinese. The detection rate and repetition rate were both 100%. The frequencies of ABCG2 34G and 34A alleles were 79.5% and 20.5%, respectively. The allele frequencies of ABCG2 421C and 421A were 72.7% and 27.8%, respectively. Genotype frequencies match the Hardy-Weinberg equilibrium. CONCLUSION: These pyrosequencing assays to detect ABCG2 polymorphisms are proved to be a rapid, accurate and high-throughput alternative to conventional methods, and it can be a preferred option in research and clinical application.
    Determination of fentanyl in human plasma by HPLC-MS-MS and study on its bioequivalence
    TIAN Ying-ying,WANG Yi-cheng,WU Hui-bin,DENG Xiao-lan, TAN Zhi-rong,ZHOU Hong-hao, OUYANG Dong-sheng
    2012, 17(7):  785-790. 
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    AIM: To establish an HPLC-MS/MS assay to determine fentanyl in human plasma. METHODS: D-fentanyl was used as an interal standard. Human plasma samples were extracted by n-hexane.The separation was carried out on an Thermo Hypurity C18 (150 mm×2.1 mm, 5 μm) column at 40 ℃.The mobile phase consisted of methanol-0.1% formic acid (85∶15, V/V) at a flow rate of 0.3 mL/min. Electrospray ionization (ESI) source was applied and operated in the positive ion mode. Quantitaion was performed using multiple reaction monitoring (MRM) of the m/z 337.1→188.1 for fentanyl , and m/z 341.9→187.9 for D-fentanyl. RESULTS: The liner calibration curves were obtained in the range of 19.53-5000 pg/mL for fentanyl.The lower limit of quantification was 19.53 pg/mL.The relative standard deviation of the intra-assay and inter-assay precision of variation was less than 5.16%.The extraction recovery for fentanyl was above 90%.To study the pharmacokinetics of two transdermal patches of fentanyl, preparations were given to 24 healthy volunteers, and the relative bioavailability of AUC0-144 was (94.0±19.5)%. CONCLUSION: It is an accurate, sensitive and rapid method that can be applied to determine fentanyl in human plasma.Two preparations of fentanyl are bioequivalent.
    Study on individual administration of tacrolimus in liver transplantation recipients
    WEI Bing-hua, YE Yi-fang, LUO Mei-juan, HONG Xiao-dan, LI Bi-hong, RONG Ying-ci, REN Bin
    2012, 17(7):  791-796. 
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    AIM: To establish a prediction method for tacrolimus concentration in liver transplantation recipients by artificial intelligence. METHODS: 94 tacrolimus concentration samples from 26 Chinese liver transplantation recipients were collected. Artificial neural network (ANN) was established after network parameters were optimized by using momentum method combined with genetic algorithm. Furthermore, the performance of ANN was compared with that of multiple linear regression (MLR). RESULTS: With ANN method,the levels of mean prediction error(MPE) and mean absolute prediction error(MAE) were(-0.11±2.81) ng/mL and(2.14±1.72) ng/mL, respectively. The absolute prediction error of 78.6% of testing data sets was less than 3.0 ng/mL. The levels of MPE and MAE were(0.56±2.70) ng/mL and(2.15±1.63) ng/mL respectively, with MLR method. The absolute prediction error of 64.3% of testing data sets was less than 3.0 ng/mL.Accuracy and precision of ANN was superior to that of MLR. CONCLUSION: ANN is suitable to predict tacrolimus concentration.
    Efficacy and safety of tacrolimus versus cyclosporine in adults with idiopathic membranous nephropathy
    LI Yi, WANG Shuai, ZHAO Jing-hong, HUANG Yun-jian
    2012, 17(7):  797-801. 
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    AIM: To compare the clinical efficacy and side-effects in patients with idiopathic membranous nephropathy who received Tacrolimus (TL) or Cyclophosphamide (CTX) . METHODS: 30 patients with primary nephrotic syndrome admitted to our hospital, diagnosed by renal biopsy in IMN, excluded in the diagnosis of secondary membranous nephropathy, were randomly divided into Tacrolimus combined with glucocorticoid treatment (TL group, 0.07-0.1 mg·kg-1·d-1, n=15) or CTX combined with glucocorticoid treatment ( CTX group, 0.75-1.0 g/m2 body surface area, every month for 6 months, n=15) . All patients received variable doses of prednisolone concomitant with TL or CTX therapy, at a dose of 1.0 mg·kg-1·d-1 initially and maintained at 0.2-0.3 mg·kg-1·d-1.The planned duration of study to assess treatment efficacy was at least 6 months.The effect of TL was observed by the change of 24 h urinary protein, serum albumin, blood lipid, blood glucose, liver and kidney function and its adverse effects in each group, and complete response rate and partial remission rate. RESULTS: Significant clinical improvement in IMN patients was observed after TL or CTX treatment and the most noticeable effect was found at 6 months of therapy. TL significantly alleviate proteinuria, serum albumin and blood lipids a month later, while CTX need two months.At the end of 6 months, the complete remission rate and total remission rate in TL group was significantly higher than these in the CTX group (40.0% vs 13.3%, 93.3% vs 60.0%, respectively). Adverse effects in the TL group: gastrointestinal discomfort (13.3%), glucose intolerance (6.7%), bacterial pneumonia (13.3%), shingles (6.7%), serum creatinine increased (6.7%), transaminase increased (6.7%), alopecia (13.3%). In the CTX group: gastrointestinal discomfort (13.3%), bacterial pneumonia(13.3%), shingles(6.7%), myelosuppression (13.3%), transaminase increased (20.0%), chemical cystitis (13.3%), alopecia (40.0%). CONCLUSION: The study suggests that a 6-month course of TL is a safe and effective treatment of IMN. As compared with CTX treatment, TL possibly results in a faster resolution of proteinuria and a higher remission rate of IMN.
    Value of leukotrienes C4,8-isoprostane, nitrite/nitrate in exhaled breath condensate and the effect of montelukast on inflammatory factors in asthma
    SHEN Ju-xin, QIN E, LI Ming-hui, SUN Jian,ZHOU Guo-zhong
    2012, 17(7):  802-805. 
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    AIM: To investigate the levels of leukotrienes C4(LTC4),8-isoprostane,nitrite /nitrate(NO2/NO3) in exhaled breath condensate of patients with asthma and the effect of inflammatory factors after montelukast treatment. METHODS: 30 patients with asthma were enrolled. They were given 10 mg montelukast once each night for one month. Before starting therapy and one month later, the levels of LTC4, 8-isoprostane, NO2/NO3 in exhaled breath condensate were measured. RESULTS: The levels of LTC4(55±17) ng/mL,8-isoprostane (13±9) ng/mL,and NO2/NO3 (4.2±1.2) ng/mL were significantly higher in the asthma group than those in the control group (17±17) ,(7±6) ,(3.2±0.6) ng/mL(P<0.01). The levels of LTC4 (55±17) ng/mL in patients with asthma before treatment was significantly higer than those in patients after treatment (38±14) ng/mL(P<0.01). Before and after treatment,the levels of 8-isoprostane,NO2/NO3 were (13±9),(11±6),(4.2±1.2),(4.1±1.4) ng/mL;and there were no significant differences (P>0.05). CONCLUSION: Detecting the LTC4,8-isoprostane and NO2/NO3 in EBC can be used to monitor asthmatic airway inflammation,which are convenient,noninvasive and safe. Montelukast can decrease the level of LTC4, which is an effective anti-inflammatory agent.
    Clinical research of teprenone to prevent recurrence of NSAIDs-related ulcer
    GUO Gan-hua,WANG Fang-fang,SONG feng-qian,SHEN Jian-chong,LU Bei-jun,ZHOU Chun-fei,YE Shu-yun
    2012, 17(7):  806-811. 
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    AIM: To compare the therapeutic efficacy and safety of use of exclusive long-term Teprenone, Misoprostol and Omeprazole to prevent recurrence of NSAIDs-related ulcer. METHODS: 107 cases of patients with NSAIDs-related ulcer were enrolled and randomly divided into three groups after cured by 6-8 weeks treatment: The therapeutic Teprenone group(38 cases)was followed by the treatment with long-term use Teprenone (50 mg,tid). the Omeprazole group (34 cases) by the exclusive long-term use of Omeprazole (20 mg,bid);and the Misoprostol group (35 cases) by the exclusive long-term use of misoprostol (200 μg,bid). During the treatment course of 52 weeks,incidence rates of ulcer recurrence and adverse reactions of the three groups were measured at the 26th and 52th week. RESULTS: During the period of the first 26 weeks,recurrence cases of the three groups were 5(13.2%),5(14.3%) and 4(11.8%),respectively;there was no statistically significant difference among the three groups(P>0.05);and the cases during the period of the 27th and 52th weeks were 6(18.2%), 3(10.0%) and 4(13.3%),respectively,with no statistically difference among the three groups(P>0.05). Incidence rates of adverse reactions were 5(13.2%),4(11.4%)and 12(35.3%)in the three groups respectively during the period of the first 26 weeks,with no statistically significant between Omeprazole and Teprenone groups(P>0.05);but the rate in the Misoprotol group was significantly higher than the other two groups(P<0.05). From the 27th week to the 52th week,adverse reaction rates were 3(9.1%),9(30.0%) and 10(33.3%),respectively, with the rate in Teprenone group was significantly lower than the other two groups(P<0.05). CONCLUSION: Long-term Teprenone is equivalent to PPI or Misoprotol in preventing the recurrence of NSAIDs-related ulcer,and adverse reaction is reduced.
    Efficacy and executive function of olanzapine and risperidone in the treatment of elderly patients with schizophrenia
    HANG Rong-hua, CHENG Wan-liang, WANG Rui-quan, WU Ming-fei
    2012, 17(7):  812-815. 
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    AIM: To explore the difference on efficacy and executive function between olanzapine and risperidone in treatment of elderly patients with schizophrenia. METHODS: 84 elderly patients with schizophrenia were randomly divided into olanzapine group (43 cases) and risperidon group (41 cases) treated for 8 weeks. The efficacy was assessed with the positive and negative symptoms scale (PANSS) and the executive function was evaluated with Wisconsin Card Sorting Test (WCST) in baseline and after 8 weeks of treatment. RESULTS: After 8 weeks of treatment, the efficacy rate of olanzapine was 90.6% , in which 67.4% was improved markedly. The efficacy rate of risperidon was 92.6%, in which 68.3% were improved markedly. There were no differences between two groups (P>0.01). The score of negative symptom of olanzapine group was significantly lower than that of risperidon group(P<0.05). The score of categories control in risperidon group was significantly lower than that in olanzapine group, persistent errors and response error were higher than that in olanzapine group(P<0.01). CONCLUSION: Both olanzapine and risperidon can improve the symptom and executive function of elderly patients with schizophrenia. Olanzapine is better than risperidon in improving negative symptom and executive function.
    Clinical observation of nebulized budesonide and oral montelukast in the treatment of cough variant asthma
    JIA Li-hong ,YAN Juan-juan
    2012, 17(7):  816-820. 
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    AIM: To compare the therapy effect of inhalation of budesonide suspension with oral montelukast in cough variant asthma ( CVA ) of children.. METHODS: 118 cases of CVA were divided into group A(n=40) , who were used air compression pump inhalation of budesonide suspension; group B(n=40), who were taken orally montelukast; group C(n=38), who were given loratadine by oral administration .Each group of children were done observation diary every day, recorded the cough,asthma and medication from day to night, followed up once a week in the treatment of 4 weeks,followed up 1-2 times once month after symptom controlled, telephone followed up during the period.If appeared asthma, outpatient was received follow-up. During the follow-up period, three groups were recorded respectively cough symptoms in day and night after treatment with 1, 2, 3, 4, 8, 12 week and done total scores.After 6 months of treatment, we assessed the control condition of asthma. Continue to follow-up 18 months, we observed the recurrence of patients within 2 years and the numbers of wheezing episode and changed into typical asthma (CA) of three groups within 2 years, and recorded the adverse reaction during the treatment. RESULTS: The valid control rates of three groups were 97.5%, 95%, 18.4%, respectively. Compared with group C, the efficacy had significant difference in group A,group B (χ2=16.004, P<0.05). There was no significant difference between group A and group B (χ2=1.946, P>0.05). Compared with before treatment,the total scores was decreased in the treatment of 1, 2, 3, 4 week in group A, group B; In the treatment of 2, 3 week, cough score of group A was decreased obviously than that in group B, the difference was statistically significant (P<0.05); Three groups after treatment, the number of CVA recurrence and wheezing in group A,B was less than that in group C , and relapse rate of group A was 7.5%, wheezing ratio was 10%, while in group B were 25%, 35% (χ2=8.467, P<0.05). CONCLUSION: Compare with take orally montelukast, compress aerosol inhalation budesonide can anesis clinical symptoms better and faster, reduce the recurrence of CVA, effective prevent into typical asthma, and the long-term efficacy is superior to oral montelukast.
    Advances in pharmacogenomics of cytochrome P450 oxidoreductase
    HU Lei, GAO Li-chen, ZHUO Wei, ZHOU Hong-hao, FAN Lan
    2012, 17(7):  821-827. 
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    The redox reaction of the cytochrome P450 enzymes (CYP) are important physiological and biochemical reactions in the human body, involved in the metabolism of endogenous and exogenous compounds and steroids synthesis. POR (cytochrome P450 oxidoreductase) is the only electron donor for all the hepatic microsomal CYP enzymes. Not only acts as an electron donor involved in drug metabolism mediated by CYP enzymes, POR also directly induces the transformation and metabolism of some anti-tumor precursors. Therefore POR plays an important role in drug metabolism. The gene encoding human POR is highly polymorphic, which is of great clinical significance by having an significant effect on the metabolism and even curative effects of clinically used drugs. Studies on the pharmacogenomics of POR in recent years are summarized as follows.
    Research progress on human leucocyte antigen gene polymorphisms and drug adverse reactions
    LUO Jian-quan, ZHANG Wei
    2012, 17(7):  828-834. 
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    Drug adverse reactions which are harmful to human health have become an important public health problem. Human leucocyte antigene is the most complex gene system. Recent years, research has demonstrated that there is a strong genetic link between HLA gene and drug adverse reactions. What's more, some research achievements have also been applied broadly in clinical practice. This review covers the progress between HLA polymorphisms and drug adverse reactions and on its clinical practice
    Role of P-glycoprotein in neurodegenerative disease
    ZHANG Mi, ZHANG Qi-zhi, LOU Jiang, ZENG Han-qing, PENG Wen-xing
    2012, 17(7):  835-840. 
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    Neurodegenerative disease is a form of chronic progressive neurological disease based on neuronal degeneration, and its pathogenesis is not clear, but the abnormal aggregation and deposition of some exogenous and endogenous substances are closely related to its cause, and it is usually the P-glycoprotein substrate. In recent years, studies have shown that the expression of P-glycoprotein on blood-brain barrier will be reduced in some neurodegenerative disease, which may lead to further aggregation and sedimentation of pathogenic exogenous and endogenous to deteriorate the condition. In this paper, the role played by the P-glycoprotein in the pathogenesis of neurodegenerative disease and disease progression is reviewed