1.Clinical observation of GEM+NVB regimen in retreatment of 24 Advanced NSCLC treated by TAX+DDP regimen
Tong ZHANG ; Guoping REN ; Zhenhai ZHANG
Cancer Research and Clinic 2000;0(01):-
Objective To appraise the efficacy,survival rate and toxicity of GEM+NVB regimen in retreatment of 24 Advanced NSCLC treated by TAX+DDP regimen.Methods 24 patients with Advanced NSCLC received chemotherapy of GEM+NVB regimen.We evaluate the efficacy,survival rate and toxicity after two periods.Results Among these 24 patients,there was no complete response.Rates of partial response is 29.2 %,the average survival period is 28 weeks.One year survival rate is 34.3 %.Conclusions GEM+NVB regimen is effective as second-line chemotherapy for the Advanced NSCLC patients that have ever been treaded by TAX+DDP regimen.
2.Extraction process of Radix Salviae Miltiorrhizae with the aid of cyclodextrion
Zhenhai ZHANG ; Li LIU ; Desheng XU
Chinese Traditional Patent Medicine 1992;0(03):-
AIM: To study extraction process with the aid of cyclodextrin (EPAC) of Radix Salvias Miltiorrhizae. METHODS: Taking tanshinone Ⅱ_A, Danshensu, dry extract as the indexes, EPAC and water extraction process(WEP) were compared. RESULTS:The index of tanshinone Ⅱ_A of EPAC was better than WEP in extract, but there was not obvious difference in the indexes of Danshensu and dry extract. CONCLUSION:EPAC is worth researching further.
3.Netilmicin in the prevention of postoperative infection
Zhenhai YU ; Shujuan SUN ; Shuguang ZHANG
Chinese Journal of General Surgery 2000;0(12):-
Objective To determine the optimum administration modality of netilmicin (NTM) by comparing the blood concentration, bactericidal activity, clinical effect and adverse reactions at two different regimen. MethodSerum concentration was determined by TDx (Fluorescence Polarization Immunoassy Technology). Serum bactericidal activity (SBA) was determined by microdilution method. ResultAll trough concentrations were
4.Preparation and application on compound excipient of sodium stearyl fumarate and plasdone S-630.
Yanrong JIANG ; Zhenhai ZHANG ; Xiaobin JIA
Acta Pharmaceutica Sinica 2013;48(1):125-30
The compound excipient containing sodium stearyl fumarate and plasdone S-630 was prepared by applying spray drying method. The basic physical properties of compound excipient were studied by solubility test, scanning electron microscope, differential scanning calorimeter, X-ray diffraction and Fourier transform infra-red spectroscopy. The effect of compound excipient on moisture absorption and ferulic acid in vitro dissolution of spray drying power of angelica were investigated. The results showed that the chemical constituents of compound excipient did not change before and after spray drying. The water soluble compound excipient can improve significantly moisture absorption and has application prospect.
5.A glycoprotein from plant(ZPP):study on tumor common antigen
Baoen SHAN ; Zhenhai ZHENG ; Zijie ZHANG
Chinese Journal of Immunology 1985;0(05):-
Objective:Tumor common antigen of an extract of plant and applying in early stage diagnosis for tumor were studied.Methods:Tumor cells and lymphocytes proliferate responses were determined by 3H-TdR intervening.Fresh tumor tissue from human transplant to mice,the survival rate of transplanted tumor was observed.DNA content of tumor cells was measured by flowcytometery.The chemical nature was analyzed by chromatography and measured by ultraviolet-spectrometer.Results:The extract of plant markedly stimulated the lymphocytes from tumor patients and atypical hyperplasia patient to proliferate,but failed to health persons(P
6.Effects of various surgical procedures on portal hemodynamics in patients with portal hypertension
Shuguang ZHANG ; Changle RUAN ; Zhenhai YU
Chinese Journal of General Surgery 1993;0(03):-
ObjectiveTo study the effects on hemodynamics of portal venous system of splenorenal shunt plus pericardia devascularization (SRS+PCDV), and evaluate the clinical significance of this operative procedure.MethodsThe hemodynamic parameters of portal venous system by Doppler color-flow imaging (DCFI) of 99 patients with portal hypertension (PH) were measured before and after operation.Results(1)In SRS group the postoperative portal venous flow (PVF), free portal pressure(FPP) decreased by (57?9)%, (52?5)% respectively (P0.05).(3)In SRS+PCDV group PVF,FPP decreased by (36?8)%, (34?10)% respectively(P
7.In situ rat intestine absorption of paclitaxel-loaded solid lipid nanoparticles modified with cell-penetrating peptides.
Caocao LI ; Zhenhai ZHANG ; Yinlong ZHANG ; Huixia Lü ; Jianping ZHOU
Acta Pharmaceutica Sinica 2013;48(1):131-7
To investigate the rat intestinal absorption of stearic acid-octaarginine (SA-R8) modified solid lipid nanoparticles containing paclitaxel (SA-R8-PTX-SLN), compared with the commercially available preparation of PTX (Taxol) and PTX-loaded solid lipid nanoparticles (PTX-SLN), the in situ intestinal absorption of SA-R8-PTX-SLN was investigated by means of single-pass rat intestinal perfusion technique. The absorptions of the preparations were investigated at different intestinal segments, different drug concentrations and in the presence of P-glycoprotein inhibitor (verapamil). The results showed that PTX could be absorbed at each intestinal segment and the three preparations all showed maximum absorptions at the duodenum. The cumulative absorptions of three preparations at each intestinal segment appeared SA-R8-PTX-SLN > PTX-SLN > Taxol (P < 0.05). SA-R8-PTX-SLN showed a liner absorption manner at the duodenum in the examined drug concentration range. The cumulative absorptions of Taxol and PTX-SLN were significantly promoted after the addition of P-glycoprotein inhibitor (verapamil) into the preparation (P < 0.05), but absorption of SA-R8-PTX-SLN existed no significantly difference compared with the preparation without verapamil (P > 0.05). SA-R8 and SLN might both effectively improve the oral absorption of PTX in the intestinal tract.
8.Expression of protein gene product 9.5, vasoactive intestinal peptide and neuropeptide Y in the mucosa of the neovagina after sigmoid colon vaginoplasty
Yachai LI ; Xianghua HUANG ; Lin ZHANG ; Zhijie ZHU ; Zhenhai WANG
Chinese Journal of Obstetrics and Gynecology 2011;46(2):109-112
Objective To investigate re-innervation in the neovaginal mucosa of patients underwent sigmoid colon vaginoplasty in treatment of Mayer-Rokitansky-Kistner-Hauser Syndrome (MRKHS).Methods Biopsies in the upper third of the posterior neovagina were taken in 20 patients treated by sigmoid colon vaginoplasty at 1, 2 and 3 years after surgery, respectively. Protein gene product 9. 5 ( PGP 9. 5 ),vasoactive intestinal peptide (VIP) and neuropeptide Y (NPY) were detected by immunohistochemical method and compared with those in intact sigmoid colon mucosa. Results ( 1 ) Density of nerve fiber:abundant distribution of PGP 9. 5 nerve fibers were observed in the mucosal muscle layer, submucosa, and smooth muscle layer of the neovagina. The nerve fibers of VIP and NPY immunoreactivity were mainly distributed around blood vessels and in the smooth muscles. In the neovagina, the density of nerve fibers of PGP 9. 5 of 17 ± 6 were much more than VIP of 2. 9 ± 1.0 and NPY of 2. 5 ± 0. 8 significantly ( P < 0. 05 ).( 2 ) Expression of PGP 9. 5 in neovagina: at 1 year after surgery, PGP 9. 5 positive expression of 14 ± 4 was significantly lower in the neovagina than 28 ± 7 in the intact sigmoid colon( P < 0. 05 ). However, after 2 to 3 years, its expression displayed an upgrade tendency in the neovagina and was significantly higher at the 3 year postoperatively than that at the 1 years postoperatively ( 22 ± 7 vs. 14 ± 4, P < 0. 05 ). The changes were much more obvious in submucosa. (3) The expression of VIP and NPY in neovagina: at 1 year after surgery, VIP and NPY positive nerve fibers were also decreased in the neovagina when compared with those in the intact sigmoid colon ( 2. 3 ± 0. 7 vs. 5.3 ± 1.4, P < 0. 05; 2.5 ± 1. 1 vs. 5.5 ± 1.1, P < 0. 05 ) . At 2 to 3 years after surgery, the positive VIP fiber showed initially decreased and subsequently increased tendency. The density of VIP of 3.7 ± 0. 7 in the neovagina at 3 years postoperatively was higher than 2. 3 ±0. 7 at 1 years postoperatively (P < 0. 05 ). No significant up-regulation was observed in NPY-positive expression in the neovagina within 3 years after operation. Conclusions Distribution of sensory PGP 9. 5,VIP and NPY immunoreactive nerve fibers was similar to the pattern observed within the intact sigmoid colon wall. The number of nerve fibers in the neovagina decreased after surgery and then increased subsequently within 3 years after surgery.
9.Long-term effect of combined portoazygous devuscularization and shunt for treatment of portal hypertension.
Shuguang ZHANG ; Changle RUAN ; Zhenhai YU ; Guangxing LI ; Zhaoting LI
Chinese Journal of Practical Surgery 2001;21(3):147-148
ObjectiveTo evaluate the therapeutic effect of combined portoazygous devascularization and shunt on portal hypertension. MethodsThe data of 56 cases of portal hypertension treated with portoazygous devascularization and shunt from April 1987 to April 1999 was summarized. ResultsThere was no death in 54 patients receiving selective operation;of 2 cases receiving emergency operation, one died. Among 49 followed-up cases, there was one rebleeding,2 hepatic encephalopathy, and one died of liver failure 4 years after opeation. The mean portal pressure before and after operation was(3.42±0.46) kPa and (2.50±0.35) kPa, respectively. ConclusionCombined portoazygons devascularization and shunt not only decreases portal pressure but preserve hepatic blood flow to some extent.
10.Short and Long Term Efficacy and Safety of Pancreaticoduodenectomy for Pancreatic Head Carcinoma and Periampullary Carcinoma
Shengjie DONG ; Xinhe HUO ; Zefeng ZHANG ; Zhenhai SUN ; Yuhong LUO
Progress in Modern Biomedicine 2017;17(23):4537-4540
Objective:To investigate the recent and long-term efficacy and safety of pancreaticoduodenectomy for pancreatic head carcinoma and periampullary carcinoma.Methods:82 cases of pancreatic cancer combined with periampullary carcinoma patients admit ted in our hospital from August 2009 to June 2013 were selected and randomly divided into the control group and the observation group With 41 patients in each group.The control group received palliative surgical treatment,while the observation group underwent pancreatoduodenectomy.The operation time,hospitalization time,intraoperative bleeding volume and the incidence of complications,1,2,3-year survival rate and the recurrence rate at 1 year after operation and tumor eradication rate were compared between twp groups.Results:The amount of bleeding,operation time of observation group were significantly higher than those of the control group(P<0.01),no signif icant difference was found in the hospitalization time between the two groups(P>0.05);the incidence of complications in the observation group (41.46%) was significantly higher than the control group (22.96%)(P=0.03);the 2-year and 3-year survival rate of observation group were significantly higher than those of the control group (P<0.05),the recurrence rate at 1 year after operation of observation group was significantly lower than that of the control group (P=0.04),the tumor eradication rate was significantly higher in the observation group than that of the control group (P=0.04).Conclusion:Though pancreaticoduodenectomy could prolong the operation time,increase the risk of bleeding and complications for pancreatic head carcinoma and periampullary carcinoma,but it could effectively reduce the possibility of recurrence after operation,significantly improve the long-term survival rate.