Objective: To detect the antitumor activity of Shuang-Xi-Zuo-Wan-1(Eb), a novel organoselenium compound, in C57/BL mice transplanted with Lewis lung cancer(LLC). Methods: The LLC transplanted C57/BL mice model was established,and the mice were randomly divided into four groups, including high dose Eb group (25.0 mg/kg),low dose Eb group (12.5 mg/kg), positive control group (DDP,2.0 mg/kg) and negative control group(solvent).Each group had twelve mice. Intraperitoneal injections (ip.) of four pharmaceuticals were performed once a day through the abdominal wall separately, from the second to the eighth days after cancer was transplanted. On the eleventh day,six mice of each group were killed and the influences of Eb on growth speed ,size, weight, invasion, inhibitory rate, proliferation index and apoptosis rate of LLC were observed and calculated.The remaining mice were fed till all of them died naturely and the average survival time of each group was calculated. Results:Eb could inhibit the growth and infiltration of LLC(the cancer inhibitory rate of high does Eb was 80.31%) obviously and prolong the average survival time of these with mice cancer. After being given Eb,the nuclear of the cancer cell concentrated and the fission phase cells reduced.In addition,the number of apoptosis cancer cells increased.Conclusion:The novel organoselenium compound Eb has antitumo activity in vivo .It can inhibit the growth and infiltration of LLC in mice, and induce the apoptosis of cancer cells.

Objective: To detect the Immune regulating activity of ethaselen-1(Eb1),a novel organoselenium compound,in C57/BL mice transplanted with Lewis lung cancer(LLC).Methods: The LLC transplanted C57/BL mice models were established,and the mice was randomly divided into four groups,including high dose Eb1 group(25.0 mg/kg),low dose Eb1 group(12.5 mg/kg),positive control group(levamisole,LMS,2.0 mg/kg) and negative control group(solvent).Intraperitoneal injections(ip.) of the four pharmaceuticals were performed once a day through the abdominal wall separately,from the second to the eighth day after cancer was transplanted.On the eleventh day,six mice of each group were killed and relative weight of spleen,transforming activity of spleen lymphocytes,NK cell activity,LAK cell activity and percentage of CD_4~+CD_8~+T lymphocyte were detect.Results: Compared with the control group,high dose Eb1 could obviously increase the relative weight of spleen(150.59% and 122.55%),transforming activity of spleen lymphocytes(162.25% and 561.98%),NK cell activity(78.60% and 219.42%) and percentage of CD_4~-/CD_8~+ T lymphocyte(104.72% and 105.87%) in normal mice and LLC mice.Compared with the control group,high dose Eb1 could also increase LAK cell activity of LLC mice by 195.11%.Conclusion: The novel organoselenium compound Eb1 has immune regulating activity in vivo.

Objective:To explore the pharmaceutical care on an uremia patient with pulmonary infection complicated with epilepsy to provide ideas for clinical pharmacists in the clinical practice. Methods: According diagnosis and drug treatment characteristic of Chronic renal insufficiency, clinical pharmacist supplied individual treatment regiment and treatment of complications and adverse drug reactions occurred in the course of treatment, and pharmaceutical care for the patient in the whole process. Results: Pharmaceutical care on patients with uremia complicated with pulmonary should focous on the safety and rationality of the used of antibiotics, the poten-tial interaction of drugs, the treatment of adverse drug reaction, and the education of patients. Conclusion:Clinical pharmacist should supplied conventional pharmaceutical care on patients with uremia complicated with pulmonary to improve the safety and effectiveness of drug treatment.

OBJECTIVE:To provide reference for rational use of recombinant human granulocyte-colony stimulating factor (rhG-CSF) in cancer patients. METHODS:Referring to the expert advice and guideline of clinical application of rhG-CSF at home and abroad,DUE criteria on rhG-CSF for cancer patients was established;questionnaire was designed,and the medical re-cords of rhG-CSF in a third grade class A hospital was evaluated. RESULTS:The DUE criterion on rhG-CSF for cancer patients included 3 parts,such as drug indications,the course of medication and medication results,14 items in total. Through the imple-mentation of DUE,retrospective evaluation of 220 medical records showed that the application of rhG-CSF was up to the stan-dard in respects of drug indications,no contraindication,routine blood test and drug interaction monitoring at least twice every week,there still was irrational phenomenon. CONCLUSIONS:The established DUE criterion on rhG-CSF for cancer patients is with the characteristics of definite content,target and paracticabilitg,which can provide reference for the work development of clinical pharmacists.

Objective To study the median effective doses (ED50) of dexmedetomidine to induce adequate sedation in elderly patients undergoing epidural anaesthesia. Methods Seventy-five elderly patients undergoing lower extremity operation under epidural anesthesia were selected, and the patients were divided into 5 groups according to the random digits table method with 15 cases each: D1 group (dexmedetomidine 0.2 μg/kg), D2 group (dexmedetomidine 0.4 μg/kg), D3 group (dexmedetomidine 0.6 μg/kg), D4 group (dexmedetomidine 0.8μg/kg) and D5 group (dexmedetomidine 1.0μg/kg). After 20 min of dexmedetomidine injection, adequate sedation was defines as observer′s assessment of alertness/sedation score (OAA/S score) ≤ 3 scores. The ED50 and 95% effective dose (ED95) of dexmedetomidine and 95% CI in elderly patients undergoing epidural anaesthesia were calculated by probit regression method. The changes of mean arterial pressure (MAP), heart rate, pulse oxygen saturation (SpO2) and OAA/S score among 5 groups were compared. The incidences of adverse effects such as hypotension, bradycardia, hypoxemia and excessive sedation were compared. Results The ED50 in elderly patients was 0.36 μg/kg (95% CI 0.27 - 0.44 μg/kg); the ED95 was 0.94 μg/kg (95% CI 0.71 - 1.62 μg/kg). After dexmedetomidine injection, the MBP, heart rate, SpO2 and OAA/S scores in 5 groups were decreased, but in the D4 group and D5 group the decreases were more significant. The incidences of hypotension, bradycardia and excessive sedation in D1 group, D2 group and D3 group were significantly lower than those in D4 group and D5 group:2/15, 5/15 and 8/15 vs. 14/15 and 15/15;1/15, 6/15, 7/15 vs. 13/15 and 14/15;0, 0 and 1/15 vs. 5/15 and 7/15, the incidences of hypoxemia in D1 group, D2 group and D3 group were significantly lower than those in D5 group: 0, 0 and 0 vs. 3/15 and 4/15, and there were statistical differences (P<0.05). There were no statistical differences in incidences of adverse effects between D4 group and D5 group (P>0.05). Conclusions The ED50 of dexmedetomidine in elderly patients undergoing epidural anaesthesia is 0.36μg/kg, (CI 0.27-0.44μg/kg). The incidences of adverse effects are increased when single-dose dexmedetomidine is more than 0.8μg/kg.

Objective Many researches have demonstrated the lowing-intraocular pressure(IOP) effects of bimatoprost and timolol.However,no powerful evidence showed which drug has the better efficacy.This study was to perform a meta-analysis to evaluate the efficacy and tolerability of bimatoprost compared with latanoprost in lowing IOP.MethodsThis was a evidence-based medicine science study.Pertinent studies were identified through searches of PubMed,EMBASE,the Cochrane Liberary Controlled Trials Register and Chinese Biomedicine Database using the terms of timolol,blocardren,temserin,timoptic,bimatoprost,lumigan.The intensive searching by hand and up to October 1,2008 was also designed.ResultsSix randomized and controlled studies enrolling a total of 2 094 patients were included in the meta-analysis and three clinical indexes were analyzed.Bimatoprost was associated with greater decline value from baseline IOP in comparison with timolol(P＜0.01) with a weight mean difference -2.04 at final point(95% CI:-2.44 to -1.64).Numerically greater proportions of bimatoprost patients than timolol patients achieved the target IOP at 3 months(from 3 literature) and ＞6 months(from 2 literature) with a pooled RR of 1.87(95% CI:1.45 to 2.41),1.60(95% CI:1.36 to 1.90) (P＜0.01),respectively.Bimatoprost showed a more frequencies in the adverse effects such as conjunctival hyperemia and eyelash growth than timolol with an RR of 4.18 (95% CI:2.89 to 6.05),9.40 (95% CI:5.62 to 15.71).No obvious drug-related side effect was found from literature analysis included both drugs.Conclusion Searched literature offers grade A of evidences for the comparison clinical evaluation of therapy efficacy between bimatoprost and timolol in lowing IOP.Bimatoprost has a better efficacy in lowering IOP and reaching comparable proportions of patients with target IOP than timolol.Both agents are well tolerated.

The ablated aerosols of biological matrix sample were studied using 213 nm nanosecond laser ablation system.The stable signal intensity and high sensitivity were obtained when the laser energy was 25%, the spot size was 200 μm, the scan rate was 20 μm/s, the frequency was 20 Hz and the carrier gas was 700 mL He + 700 mL Ar.Relative fractionation index of 56 elements were investigated and 31P as the internal standard element was selected under the optimized laser ablation conditions.The results showed that particle size of the biological sample was 3 μm, which was larger compared with NIST 610 sample.Element fractionation in biological sample was smaller than in glass sample, and relative fractionation index of most elements attained 1.0 ± 0.1.Element fractionation mechanism of biological sample was discussed.The possible reason why the relative fractionation index in biological sample with large particle size did not significantly increase compared to the glass sample is that the 3-μm particles entered into ICP can be atomized.On the other hand, enrichment effect for large ablation particles was relatively small.Further study of the influence factors of fractionation effect indicated that, the fractionation effect had relations with laser ablation energy, laser frequency and scan rate, negatively relation with the oxide boiling point, and positively relation with oxide bond energy and ionization energy.

The incidence of aduIt obesity,diabetes,hyperIipidemia and hypertention has been rising dramaticaIIy in recent years. Obesity and overweight have become a significant pubIic heaIth probIem worIdwide. Though obesity is caused by compIex interactions between genetic,behavioraI,and environ-mentaI factors,its etioIogy is stiII uncIear. There is growing evidence that exposure to bisphenoI A(BPA) during prenataI and neonataI or adoIescence periods Ieads to much body mass gain. In addition,in epi-demioIogicaI studies,the association between BPA exposure and obesity and type 2 diabetes has been found. The potentiaI mechanism may be attributed to promoted differentiation and function in adipocytes via aIteration of a number of genes. BPA may act aIso through other mechanisms. It can directIy bind to nucIear receptors acting as agonists or antagonists and indirectIy disrupt hormone IeveIs by inhibiting enzymatic activity or by activating expression of the P450 enzymes. This review is focused on the effects of estrogenic endocrine disrupting chemicaIs such as BPA on the deveIopment of obesity.

Laser ablation inductively coupled plasma mass spectrometry ( LA_ICP_MS ) was applied for the determination of doping element chromium( Cr) content and distribution in Cr∶ZnSe crystals. Several different Cr∶ZnSe crystals were prepared by diffusion method as reference material to solve the problem of accurate quantization. The homogeneity of Cr in these samples was characterized by LA_ICP_MS and the concentrations achieved by inductively coupled plasma atomic emission spectrometry ( ICP_AES ) . With signal pot and line scan sampling, the present method provided effective position and content distribution information of Cr in ZnSe crystals, achieved the in situ analysis. The correlation coefficient of Cr in calibration curve was 0. 9992 and the detection limit was 0. 08 mg/kg. It could provide effective means for the distribution statistics of doping element in different growth condition crystals.

Objective To assess the prognostic benefits of intraoperative radiotherapy (IORT) with electron beam among patients with unresectable locally advanced pancreatic cancer.Methods Between January 2009 and December 2014,167 patients with unresectable locally advanced pancreatic cancer received IORT with electron beam (10-20 Gy) in our hospital.After surgery,12 patients were treated with external beam radiotherapy,56 patients with chemoradiotherapy (CRT),and 17 patients with chemotherapy.Overall survival (OS),local recurrence,and toxicities were retrospectively analyzed.The Kaplan-Meier method was used to calculate survival rates,the log-rank test was used for survival difference analysis and univariate prognostic analysis,and the Cox model was used for multivariate prognostic analysis.Results The follow-up rate was 100％.The median OS time was 10.3 months,and the 2-year OS rate was 22％.The median progression-fiee survival (PFS) time was 6.3 months,and the 2-year PFS rate was 9.9％.The cancer-specific survival (CSS) time was 11.2 months,and the 2-year CSS rate was 23.6％.In the patients treated with IORT alone at doses of＜15 Gy,15 Gy and＞15 Gy,the median OS times were 6.2 months vs.9.1 months vs.22.2 months,and the 1-year OS rates were 10.0％ vs.39.6％ vs.74.4％ (P=0.000).Among the patients receiving postoperative adjuvant therapy,those treated with IORT+CRT had the best survival,with a median OS time of 11.6 months (P=0.033).The univariate analysis showed that IORT dose (P =0.000),tumor size (P =0.006),and IORT applicator diameter (P =0.007) were prognostic factors.The multivariate analysis showed that IORT dose (P=0.000) and IORT combined with CRT (P=0.006) were independent prognostic factors.Conclusions IORT with electron beam is an effective and safe treatment strategy for unresectable locally advanced pancreatic cancer.After protecting surrounding organs,increasing the IORT dose can improve the survival.IORT combined with CRT should be recommended because it improves survival for unresectable locally advanced pancreatic cancer without increasing toxicities.