1.Correlation analysis of SLC29A1 gene mutation with gemcitabine toxicity and clinical prognosis in treating advanced pancreatic cancer
Zhengwei SONG ; Fei CHEN ; Xiaoguang WANG ; Weilin WANG ; Jianguo FEI
Chinese Journal of Pancreatology 2017;17(1):3-7
Objective To detect the sequence of SLC29A1 gene rs1288 single nucleotide polymorphism (SNP) in advanced pancreatic cancer patients,and to explore its correlation with gemcitabine toxicity and prognosis.Methods Peripheral blood samples were collected and DNA was extracted.The segment containing SLC29A1 gene SNP (rs1288) was amplified by PCR,and then DNA sequencing was conducted to identify SLC29A1 gene SNP (rs1288).According to the sequencing results,the patients were divided into SLC29A1 gene rs1288 T→A mutation type group and wild type group.Clinical data,toxicity of gemcitabine chemotherapy,progression free survival (PFS) and overall survival (OS) between two groups were compared.Results A total of 83 pancreatic cancer patients were enrolled.Sequencing results showed that SLC29 A1 gene 1288 T→A mutation type was present in 52 patients and wide type was observed in 31 patients,so mutation rate was 62.7%.All the patients in both two groups could tolerate the gemcitabine toxicity,and no chemotherapy related death occurred.There were no statistical differences on the gender,age,CA19-9,tumor site,size and TNM stage between the two groups.There were statistically higher iucidences of leukopenia and thrombocytopenia in the SLC29A1 gene rs1288 T →A mutation type group compared to the wild type group (55.8% vs 32.3%,P<0.05;40.4% vs 19.4%,both P<0.05).Median OS and PFS in mutation type group were shorter than those in wide type group (11 months vs 14 months,P < 0.05;9 months vs 12 months,P < 0.05).Conclusions Advanced pancreatic cancer patients with the SLC29A1 gene rs1288 T→A mutation type had a higher incidence of adverse reaction in gemcitabine chemotherapy and a worse therapeutic effect,and thus detecting the mutation of SLC29A1 gene rs1288 point mutation may serve as a marker for evaluating the toxicity and prognosis of gemcitabine chemotherapy in patients with pancreatic cancer.
2.The applied analysis of amputation of secondary pedicles of the spleen in laparoscopic splenectomy in hypersplenism caused by the schistosoma cirrhosis
Xiaodan YANG ; Zhengwei SONG ; Xiaoguang WANG ; Quanfa NI ; Hongbo QIN ; Wei YU ; Jianguo FEI
Chinese Journal of Postgraduates of Medicine 2017;40(6):539-541
Objective To investigate the feasibility, efficacy, safety and economy of secondary splenic pedicle trisection method in removing schistosoma cirrhosis caused the splenic function. Methods Thirty patients receiving spleen secondary structure amputation between July 2014 and September 2016 were analyzed. Results Laparoscopic splenectomy with secondary splenic pedicle transaction was successfully performed in 28 patients, whereas two Endo-GIAs were used in 2 patients. The average of operation time was (80 ± 20) min, and operative blood loss was (320 ± 10) ml. The drainage of the splenic fossa was removed (3- 4) days after operation.Postoperative hospital stay was (10.8 ± 1.2) days after operaions. No massive hemorrhage, pancreatic leakage, secondary infection, serious complications such as abscess under diaphragm and recent complication such as infection of incision occurred postoperatively. Platelet of all patients recovered in 4 days postoperatively, and patients with platelet>400 × 109/L was given oral aspirin enteric-coated metformin hydrochloride. All patients were followed up for 6 months postoperatively, and no intestinal obstruction, portal vein thrombosis and other long-term complications occurred in all patients. Conclusions The amputation of secondary structures of the spleen in laparoscopic splenectomy to remove schistosoma cirrhosis caused the splenic function is safe. It could shorten the length of hospital stay and reduce the medical cost. It is a valuable method for clinical promotion.
3.Clinical application of intraoperative cholangiography in laparoscopic cholecystectomy
Hao XIE ; Hao LONG ; Zhengwei SONG ; Xiuhong LI ; Tianfu YANG ; Qineng ZHANG
Journal of Regional Anatomy and Operative Surgery 2013;(6):645-646,649
Objective To investigate the clinical value of intraoperative cholangiography( IOC) by cystic duct during laparoscopic chol-ecystectomy( LC) . Methods The clinical data of 58 patients with LC received intraoperative cholangiography by cystic duct were analyzed retrospectively. Results In this group,Successful treatment of 55 cases(94. 83%),failed in 3 cases(5. 17%),no common bile duct calculi in 50 cases(90. 91%),small common bile duct calculi(0. 4 cm) in 5 cases(9. 09%). Among them 4 cases were received common bile duct exploration via laparotomy,1 case treated by laparoscopic transcystic biliary calculus extraction with Dormia basket. The cystic duct drained into the right hepatic duct in 1 patient. In all the cases,no bile duct injury,residual choledocholith,bile leakage,intra-abdominal infection and IOC related complications. Conclusion IOC during LC is simple and easy,with high success rate and good development effect,which can promptly discover the anatomical variations of biliary tract. It has important clinical application value to reduce biliary negative exploration,in-traoperative injury of biliary tract and postoperative common bile duct residual stone in basic hospital.
4.Curing effects evaluation of rhizoma atractylodis macrocephalae on yeast prion[PSI+]
Hui LI ; Shuang DOU ; Bo ZHONG ; Xianglong BU ; Zhengwei ZHONG ; Youtao SONG
Chinese Journal of Zoonoses 2014;(10):1024-1027
Investigation of the effects of rhizome atractylodis macrocephalae on yeast prion [PSI+ ]was conducted in this study .Liquid culture containing rhizome atractylodis macrocephalae aqueous extracts was applied to evaluate its therapeutic effects preliminarily .Then yeast replica plating together with Semi Denaturing Detergent Agarose Gel Electrophoresis com-bined with western blot were used to further confirm the results .It's showed that the cure rate of aqueous extracts of rhizome atractylodis macrocephalae on yease prion [PSI+ ]could reach 6% .
5.Clinical analysis of endoscopic minimally invasive cholecystolithotomy and laparoscopic cholecystectomy
Zhengwei SONG ; Xiujiang YANG ; Hao LONG ; Qineng ZHANG ; Hao XIE ; Tianfu YANG ; Xiuhong LI
Chongqing Medicine 2014;(6):658-660
Objective To discusses the clinical application value and safety of endoscopic minimally invasive cholecystolithotomy in gallstones treatment .Methods To retrospectively analyzes the clinical data of 94 patients with gallbladder stone from Feb .2010 to Feb .2013 ,and divided into endoscopic minimally invasive cholecystolithotomy (EMIC) group (46 cases) and laparoscopic chole-cystectomy (LC) group (48 cases) .Observed two groups of operation time ,intraoperative blood loss ,intraoperative bile duct inju-ry ,anal exhaust time ,postoperative hospitalization time ,bile reflux gastritis ,abdominal distention ,diarrhea ,common bile duct calculi and hospitalization expenses ,etc .Results Two groups of operation time ,hospitalization expenses ,length of hospital stay ,and intra-operative blood loss have no obvious difference(P>0 .05) ,in EMIC set ,the exhaust time ,postoperative bile duct calculi incidence , intraoperative bile duct injury ,bile reflux gastritis incidence and the incidence of abdominal distension ,diarrhea are significantly less than LC group (P<0 .05) .Conclusion The endoscopic minimally invasive cholecystolithotomy compared with laparoscopic chole-cystectomy had high security ,light pain ,quicker recovery ,less complications advantages .It has already achieved the purpose of min-imally invasive treatment ,while maintaining the integrity of bile duct and gallbladder function ,thus it is worthy of promoting .
6.Clinical analysis of combined treatment of laparoscopy and choledochoscope for preservation of gallbladder on cholecystolithiasis *
Hao LONG ; Xiujiang YANG ; Hao XIE ; Qineng ZHANG ; Zhengwei SONG ; Tianfu YANG ; Xiuhong LI
Chongqing Medicine 2013;(24):2832-2833
Objective To discusses the feasibility of selective mini-cholecystolithotomy in treatment of gallstones .Methods To retrospectively analyzes the clinical data of the function good gallstones patients who treatmented by mini-cholecystolithotomy .Re-sults 4 cases treatmented by Laparoscopic cholecystectomy because of the severe cholecystitis ,1 case treatmented by laparoscopic cholecystectomy because of the severe adhesion around the gallbladder .51 cases treatmented by mini-cholecystolithotomy .In the fol-low-up of 1-3 years ,1 case of recurrence ,and the recurrence rate was 1 .96% .Conclusion The mini-cholecystolithotomy is a safe , effective ,feasible ,minimally invasive treatment method in treatmented gallstones ,but should be strictly grasp the surgical indica-tions .
7.Point application combined with catgut implantation at acupoint for lung-distention:a clinical study of 122 cases
Hua XU ; Juan SONG ; Nifang ZHANG ; Weizeng SHEN ; Zhengwei XIE ; Haiyang PENG
International Journal of Traditional Chinese Medicine 2015;(2):138-140
Objective To evaluate the efficacy of point application combined with catgut implantation at acupoint for lung-distention. Methods A total of 122 patients with lung-distension were randomized into a treatment group (62 patients) and a control group (60 patients). The patients in the control group received conventional treatment, and those in the treatment group were additionally treated with point application combined with catgut implantation at acupoint on the basis of the control group for 4 weeks. At 6 months follow-up, pulmonary function including the forced expiratory volume in first second (FEV1) and the percentage of FEV1 to forced vital capacity (FEV1/FVC), the total effective rate and acute exacerbation rate were compared in both groups. Results The total effective rate in the treatment group was significantly higher than that in the control group (98.4%vs. 85.0%;χ2=5.592, P<0.05). There were no significant difference in the acute exacerbation rate between the treatment group and the control group (8.1%vs. 20.0%;χ2=3.358, P>0.05).The FEV1 (treatment group: 71.58% ± 2.23% vs. 59.98% ± 2.19%, t=29.223, P<0.01; control group: 66.99% ± 2.25% vs. 61.03% ± 2.50%, t=13.726, P<0.01) and the FEV1/FVC (treatment group:68.99%± 1.33%vs. 50.77%± 1.45%, t=72.914, P<0.01; control group: 62.67% ± 1.47% vs. 51.89% ± 1.88%, t=34.989, P<0.01) after the treatment were significantly increased compared with before the treatment in both groups and such improvement in the treatment group was greater in the treatment group than that in the control group (FEV1: t=13.726, P<0.01;FEV1/FVC:t=34.989, P<0.01). Conclusion Point application combined with catgut implantation at acupoint can improve lung function and clinical effects in patients with lung-distention.
8.Diagnosis and treatment of complex pancreatic stromal tumors
Bin WU ; Jianguo FEI ; Zhengwei SONG ; Xiaoguang WANG ; Wei YU ; Zhengxiang ZHONG
Chinese Journal of Digestive Surgery 2017;16(10):1081-1083
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9.Application of damage control surgery concept application in 22 cases of pancreas trauma
Wei YU ; Zhengwei SONG ; Zhengxiang ZHONG ; Jianguo FEI ; Juncheng LI
Chinese Journal of Postgraduates of Medicine 2017;40(10):908-911
Objective To investigate the application of damage control surgery (DCS) concept in treatment of pancreas trauma. Methods The clinical data of 22 cases of pancreas trauma from January 2009 to June 2016 were analyzed retrospectively, including degree of injury, therapies and effect. Results Following DCS concept, 3 cases were given conservative treatment, and 19 cases were treated by operation, including debridement, hemostasis, suture, simple drainage and preserved pancreas function;21 cases were cured and 1 died;pancrestic fistula occurred in 11 cases, abdominal infection occurred in 6 cases and injured pancreatitis occurred in 1 cases by conservative treatment;false cyst occurred in 1 cases 6 weeks after operation. All patients were followed up for 12-36 months, with an average of (25.1 ± 1.7) months, and No significant impact was seen on the lives or work of 21 patients after surgery. Conclusions Pancreas trauma needs early-stage diagnosis and active treatment. Rational application of dcs concept can reduce the mortality and improve the outcome effectively.
10.Quantification of the curing effects of phenanthridine on yeast prion PSI+.
Zhengwei ZHONG ; Lijie WANG ; Hui XIE ; Hui LI ; Jianwei HE ; Youtao SONG
Chinese Journal of Biotechnology 2012;28(6):737-746
In order to quantify the curing effects of phenanthridine on yeast prion, we introduced semi-denaturing agarose gel electrophoresis and fluorescence recovery after photobleaching techniques to quantify the curing effects of phenanthridine on yeast prion at the protein and cellular levels with the [PSI+] yeast strain expressing GFP-Sup35p (NGMC). The results showed that these two approaches could precisely quantify the curing effects of phenanthridine on [PSI+] cells. After a treatment for 1 through 5 days with phenanthridine, the curing rates of [PSI+] cells were 0%, 0%, 51.7%, 87.5% and 94.4%, respectively. Meanwhile, we quantified the sizes of Sup35p polymers in phenanthridine induced pink phenotype cells. The aggregation status in 1-2 days phenanthridine treated cells were similar to those in [PSI+] cells, while the aggregation status in 3-5 days phenanthridine treated cells were similar to those in [psi(-)] cells.
Computer Simulation
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Models, Biological
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Peptide Termination Factors
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metabolism
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Phenanthridines
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pharmacology
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Prions
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drug effects
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genetics
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metabolism
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Saccharomyces cerevisiae
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cytology
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drug effects
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metabolism
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Saccharomyces cerevisiae Proteins
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metabolism