Objective: To observe the effect of verapamil and 6 chemotherapeutic agents vincristine,adriamycin,bleomycin,cyclophosphamide,5-Fu,cisplatin on the P-glucoprotein(P-gp) of the KBV200 cell line.Methods: Flow cytometer(FCM) assay was used to investigate the expression of P-gp on the KBV200 cell line in the different conditions.Results: Verapamil act with vincristine,adriamycin,pingyangmycin and cyclophosphamide separately decreased expression of P-gp on KBV200 cell line by 80.17%,89.69%,19.19% and 53.48% Among all the combinations,the synergistic effects of varapamil act with vincristine and adriamycine show a better effect.Conclusion: Verapamil act with vincristine,adriamycin,pingyangmycin and cyclophosphamide separately can decrease expression of P-gp on KBV200 cell line significantly,and can reverse the drug resistance of KBV200 cell line.

Objective: To make a study of KBV200 cell line on its multidrug resistance and provide experimental data for clinical individual chemotherapy.Methods:MTT reduction assay was used to investgate the inhibition of 8 common chemotherapetic agents on KBV200 cell line.Result:Vincristine、Adriamycin、Bleomycin、Cyclophosphamide and Arabinosyl Cytosine have poorer inhibition than Harrihgtonine、Cicplatin and 5-Fu on KBV200 cell line.Conclusion:KBV200 cell line is multidrug resistance to Vincristine、Adriamycin、Bleomycin、Cyclophosphamide and Arabinosyl Cytosine.

OBJECTIVE:To study the pharmacokinetic profiles and bioequivalence of test ambroxol hydrochloride vs.refe-rence preparation.METHODS:18 healthy volunteers were administered with a single oral dose of test(ambroxol hydrochloride orally disintegrating tablets)and reference ambroxol hydrochloride(60 mg)by randomized crossover way.The plasma concentrations of ambroxol hydrochloride were determined by LC-MS.The pharmacokinetic parameters and the bioavailability were computed using DAS 1.0 program.RESULTS:The main pharmacokinetic parameters of test and reference ambroxol hydrochloride were as follows:Cmax:(84.7?29.3)and(81.2?28.2)ng?mL-1;tmax:(1.7?0.5)and(1.8?0.4)h;t1/2:(7.9?0.9)and(8.3?1.0)h;AUC0～24:(638.7?180.8)and(591.4?148.3)ng?h?mL-1;AUC0～∞:(717.5?211.1)and(671.1?173.2)ng?h?mL-1,respectively.The relative bioavailability of test ambroxol hydrochloride orally disintegratiog tablets was(108.2?16.5)%.CONCLUSION:The test and reference preparations of ambroxol hydrochloride were bioequivalent.

Objective To observe the inhibitory effect of 5 chemotherapeutic agents including vincristine,adriamycin,pingyangmycin,cisplatin,cyclophosphamide on the KBV200 cell line and to study the reverse effect on the multidrug resistance of Matrine.Methods MTT assay was used to investigate the inhibition ability of 5 drugs on the cell line and the reverse effect on the multidrug resistance of Matrine.Results Vincristine,pingyangmycin,cyclophosphamide had less inhibitory effects than adriamycin,cisplatin on the KBV200 cell line.Matrine had the ability to reverse the multidrug resistance of the cell line to vincristine,adriamycin.Conclusion KBV200 cell line is multidrug-resistant to vincristine,pingyangmycin,cyclophosphamide.Matrine can enhance the sensitivity of KBV200 to the vincristine,adriamycin.

Objective To explore the effect of follow-up by telephone calls on the medication compliance of patients with cancer pain.Methods Two hundred and forty hospitalized cancer patients suffering from moderate to severe cancer pain were included in the study. All the patients were provided with education on pain treatment before discharge.Then they were randomly assigned to receive telephone follow-up or routine nursing after discharge.The medication compliance were compared 2 months after discharge.Result The medication compliance in the observation group was significantly better than that in the control group.Conclusion Telephone follow-ups can improve medication compliance in patients with cancer pain.

OBJECTIVE:To observe the clinical effect of tiotropium bromide combined with salmeterol xinafoate and fluticasone propionate in the treatment of medium and severe COPD. METHODS:119 patients with medium and severe COPD were divided into control group(54 cases)and observation group(65 cases)according to admission order. Control group was treated with Salmeterol xi-nafoate and fluticasone propionate powder for inhalation 50 μg,bid;observation group was additionally given Tiotropium bromide powder for inhalation 18μg,qn. Both groups received 1 month of treatment. Lung function indexes as FEV1,FVC and IC,blood gas indexes as SaO2,PaCO2 and PaO2 and inflammatory factors as IL-8 and TNF-α,COPD assessment test(CAT)score were observed in 2 groups,and the occurrence of ADR was also observed. RESULTS:Before treatment,there was no statistical significance in above indexes between 2 groups(P>0.05). After treatment,FEV1,EVC,IC of observation group were increased significantly,SaO2 and PaO2 of observation group were increased significantly,while PaCO2,IL-8 and TNF-αlevels was decreased significantly;those index-es of observation group were significantly better than those of control group,with statistical significance(P<0.05). CAT score of 2 groups were decreased significantly compared to before treatment,and the observation group was significantly lower than control group,with statistical significance(P<0.05). No obvious ADR was found in 2 groups. CONCLUSIONS:Tiotropium bromide com-bined with salmeterol xinafoate and fluticasone propionate shows good clinical efficacy and safety in the treatment of medium and se-vere COPD.

WIF-1 is an important antagonist in the Wnt/?-catenin pathway.As a tumor suppressor, WIF-1 is down-regulated in majority cancers but when it is correlated with WIF-1 promoter hypermethylation and treated with demethylation drug, its expression can be restored.Functional loss of WIF-1 due to promoter hypermethylation plays an important role in a tumor's pathogenesis, possibly mainly through aberrant canonical Wnt/?-catenin signal activation.The correlation of the expression of WIF-1 with clinicopathological features in different cancers is not identical.Detecting WIF-1 and promoter hypermethylation may offer help for early diagnosis, therapy and predicting prognoses.

AIM:To understand the differences between the extraction parameters of different parts from Acanthopanax. METHODS: The orthogonal design method was used in experiment arrangement; the influence caused by the different factors on the extraction of total flavone from the root and the stem of Acanthopanax senticosus Harms was obtained. RESULTS: The optimum extracting technical parameters for the root were as follows: 20 times of 50% ethanol to Acanthopanax senticosus Harms, refluxing for 3 h at 60 ?C . The optimum extracting technical parameters for the stem were as follows: 20 times of 50% ethanol to Acanthopanax senticosus Harms, refluxing for 4 h at 70 ?C. CONCLUSION: The optimum extracting technical parameters for the root were different from the stem, which is related to difference in the biological structures between the root and the stem of Acanthopanax senticosus Harms.

Cerebral edema and hemorrhagic transformation(HT) are the common complications of ischemic stroke. Ischemic cerebral edema is the primary cause of death in patients w ith large infarction. The sulfonylurea receptor 1 (Sur1) transient receptor potential M4 (Trpm4) channel plays an important role in focal cerebral ischemia. Both animal experiment and clinical studies have show n that the Sur1 selective inhibitor glibenclamide provides neuroprotection for ischemic stroke, including infarct volume reduction and improvement of neurological function, especial y in attenuating cerebral edema and reducing the incidence of HT. This article review s the advances in research on glibenclamide for the prevention of cerebral edema and HT in patients w ith ischemic stroke.

Resveratrol has several neuroprotective effects in cerebral ischemia, including reductions of oxidative stress, inflammatory responses and apoptosis. Recent studies have shown that these neuroprotective effects of resveratrol may be involved in activation of silent information regulator 1.