1.An analysis on the diagnosis and treatment of abdomen postsurgical gastroparesis syndrome
Guanghua PEI ; Gejin ZHU ; Weifeng CHEN
Clinical Medicine of China 2011;27(5):519-521
Objective To summarize the clinical features,diagnosis and treatment principles of abdomen postsurgical gastroparesis syndrome(PGS).Methods The clinical data of 28 patients with abdomen postsurgical gastroparesis syndrome,collected from our hospital in the past ten years,were analyzed retrospectively.Results All 28 patients were cured by conservation therapy.The average gastric dynamics response time was 20.2 days(12.0~34.0 days),which included 2 cases recovered within 1-2 weeks,17 cases recovered within 2-3 weeks,7 cases recovered within 3-4 weeks,2 cases recovered over 4 weeks.Conclusion PGS is a functional reaction rather than mechanical obstruction disease.The diagnosis mainly depends on the symptoms and sighs combined with gastrointestinal angiography or endoscopy.Most of the patients can be cured by conservative treatment.
2.Dissolvability of thundergodvine extract
Yongmei GUAN ; Xiaoxiao ZHANG ; Weifeng ZHU
Chinese Traditional Patent Medicine 1992;0(04):-
AIM:To investigate the dissolvability of thundergodvine extract(Tripterygium wilfordii) and triptolide in different dissolvent in transdermal drug delivery system and to study the relationship among dissolvability of extract,and its active component and mean diameters of suspension. METHODS:To determine dissolvability of extract,dissolvability of active component and mean diameters by precipitation method,dissolvability of active component method and mean diameters method. RESULTS:① solvents in sequence of dissolvability of extract,alcohol,isopropanol,ethyl,IPM,water,glycerol;② solvents in sequence of dissolvability of active component alcohol,isopropanol,ethyl,IPM,water,glycerol;③ mean diameters of suspension in sequence:IPM,ethyl,alcohol,isopropanol. CONCLUSION:① The change in dissolvability between extract and active component is identical;② The relationship between the changes in mean diameters and the dissolvent of active component is negative correlation on the whole.
3.Pharmacokinetics character of propofol during anhepatic period of pediatric liver transplantation
Yipin ZHU ; Liqun YANG ; Weifeng YU
Academic Journal of Second Military Medical University 2001;0(09):-
Objective: To investigate pharmacokinetics of propofol during anhepatic period of orthotopic liver transplantation (OLT) in children. Methods: In 5 children undergoing OLT, 2 mg/kg propofol was injected intravenously at the beginning of induction and anhepatic periods respectively. The plasma concentration of propofol was measured by reverse-phase high performance liquid chromatography(RP-HPLC), and the pharmacokinetics character of propofol between anhepatic and inducing periods were compared. Results: Propofol had wide distribution and high clearance, and its plasma concentration-time curves were fitted to a three-compartment open model. Conclusion: There is no difference of propofol metabolism between anhepatic and inducing periods, suggesting that there must be notable extra-hepatic metabolism when propofol used in children undergoing OLT.
4.Matrix metalloproteinase-1 and matrix metalloproteinase-3 polymorphisms in promoter regions and ovarian cancer susceptibility:a Meta analysis
Xuming ZHU ; Guoqian CHEN ; Weifeng SUN
Chongqing Medicine 2015;(3):353-355
Objective To evaluate the association between matrix metalloproteinase‐1 (MMP‐1)‐1 607 bp 1G/2G and matrix metalloproteinase‐3(MMP‐3)‐1 171 bp 5A/6A polymorphisms in promoter regions and susceptibility to ovarian cancer by Meta‐a‐nalysis .Methods Case‐control studies with regards of relationship between MMP‐1‐1 607 bp 1G/2G ,MMP‐3‐1 171 bp 5A/6A pol‐ymorphisms in promoter regions and susceptibility to ovarian cancer were searched in electronic databases .Odds ratio (OR) and 95% confidence interval (CI) were used to evaluate the association between polymorphisms and susceptibility .RevMan5 .0 software was applied for data analysis .Results Eight studies ,containing 5 studies for MMP‐1 and 3 studies for MMP‐3 ,were selected .For MMP‐1‐1 607 bp 1G/2G ,OR(95% CI)=0 .95 (0 .74-1 .21) ,P=0 .67 under 1G/1G :1G/2G+2G/2G model ,OR(95% CI)=0 .93 (0 .70-1 .23) ,P=0 .60 under 1G/1G :2G/2G model ,OR(95% CI)=0 .99 (0 .87-1 .14) ,P=0 .91 under 1G :2G model;for MMP‐3‐1 171 bp 5A/6A ,OR(95% CI)=0 .97(0 .68-1 .38) ,P=0 .85 under 5A/5A+5A/6A :6A/6A model .Overall ,there was statisti‐cal significance .Conclusion It is still not confirmed that significant association between the MMP‐1‐1 607 bp 1G/2G and MMP‐3‐1 171 bp 5A/6A polymorphisms in promoter regions and susceptibility to ovarian cancer exists in current literature .
5.Preliminary study on preparation of Yuanhuzhitong HBS Tablet
Zhifang HU ; Weifeng ZHU ; Huiling GUO ;
Chinese Traditional Patent Medicine 1992;0(08):-
Objective: To study the preparation and quality control methods of Yuanhu Zhitong HBS Tablet. Methods: the suitable excipients and formulation process of Yuanhu Zhitong HBS Tablet is sieved by means of testing quantity of tetrahydropalmatine through TLC UV. Results: the beginning floating time of HBS Tablet is 3min; relative dissolution of main component tetrahydropalmatine is 32% within 3hr, 86% within 9 hr. Conclusions: the study is found to be effective in the process of Yuanhu Zhitong HBS Tablet.
6.The clinical significance of early nutritional support in severe head-injured patients
Jianjun ZHANG ; Weifeng DONG ; Zhenyu ZHU ;
Parenteral & Enteral Nutrition 1997;0(03):-
Objectives:To evaluate the clinical significance of different early nutrition support in severe head injured patients. Methods:140 cases(GCS≤8) were randomly divided into 5 groups.From A to E,each one had 28 cases.The patients in group A received early parenteral nutrition(PN) and enteral nutritoin(EN) together;group B received early PN,and EN after 1 week later;group C received PN only for more than 2 weeks;group D received early EN only;group E received traditional delayed EN.The clinical observation and statistical comparison were taken. Results:Severe head injured patients could get nutrition from different ways at early stage.A and B groups had better outcomes,and the blood glucose and nutritional data were superior to those of D,E group( P
7.Short hairpin RNA-mediated silencing of APRIL gene inhibits proliferation and metastasis of human colon carcinoma SW480 cells in vitro
Weifeng DING ; Shaoqing JU ; Li ZHU ; Huimin WANG
Chinese Journal of Laboratory Medicine 2008;31(11):1291-1295
Objective To study the influence of short hairpin RNA-mediated inhibition of APRIL gene on proliferation,invasion and metastasis of human colon carcinoma SW480 ceils in vitro. Methods After treatment with shRNA, the expression level of APRIL protein in human colon carcinoma SW480 cells was detected by western blotting. And cell adhesion, cell migration and cell invasion of SW480 cells transfected with sh637 were analyzed respectively as compared with non-transfected SW480 cells and mocktransfectant. Results The expression of APRIL protein in SW480 transfected with sh637 were significantly lower than mock-plasmid groups and untransfected ones (F=42.15, P=0.00). Cell proliferation was markedly inhibited, compared with untransfected groups and negative control ones (F=24.76, P<0.05).And the average absorption of cell adhesion in transfected groups, mock-plasmid and non-transfected ones were 0.343, 0.409, 0.412, respectively. Cell adhesion decreased 39% compared with untransfected groups. Similarly, there was significant difference for cell migration (F=65.53, P<0.01) between transfected groups (The average ceil number in exposed area to migrate was 47.89±13.16) and nontransfected (98.78±23.26) as well as mock-plasmid ones (108.01±39.11). Then, in view of the average absorption of cell invasion between transfected groups(0.58±0.10) and non-transfected (0.94±0.23) as well as mock-plasmid ones(1.11±0.21), a prominently difference for cell invasion was also found between them (F=5.771, P<0.05). Conclusion The results suggest APRIL has a proliferation-inducing effect and probably be involved in cell invasion and cell metastasis of colon carcinoma and it could enhance capacity of invasion and metastasis of SW480 cells.
8.Relationship between NF-κB p65 activation and k-ras gene mutation in colorectal cancer
Ling CHEN ; Yunbin YE ; Yanping CHEN ; Gen LIN ; Weifeng ZHU
Cancer Research and Clinic 2013;25(8):513-515,526
Objective To investigate the corresponds between NF-κB p65 activation and k-ras mutations.Methods NF-κB p65 activation was analyzed by immunochemistry in 167 colorectal cancer specimens in which the k-ras mutation status was confirmed.Resluts Among 167 colorectal cancer specimens screened,59 (35.3 %) had k-ras mutations and 63 (37.7 %) had NF-κB p65 activation.k-ras mutations and NF-κB p65 nuclear expression were no significant difference in different sex,age,ECOG score,pathological types,degrees of pathological differentiation,TNM stage,and metastases on lymph nodes (P> 0.05).The positive nuclear expression rate of NF-κB p65 was 50.8 % (30/59) in specimens with k-ras mutations and 30.6 % (33/108) in specimens with wild type k-ras.There was obviously statistical difference between them (P =0.010).Conclusion NF-κB p65 activation in coloretal cancer was associated with k-ras mutations.
9.Resistance of Pseudomonas aeruginosa Against Five Antiseptics
Yuyue WANG ; Weifeng SHI ; Yonghua ZHU ; Jianwen GU ; Yun JI
Chinese Journal of Nosocomiology 2006;0(12):-
OBJECTIVE To explore the resistance of Pseudomonas aeruginosa isolated in clinic against five antiseptics involving in povidone iodine(Iodophor),glutaraldehyde,chlorhexidine,symclosene(trichloroisocyanurate) and benzalkonium bromide.METHODS The susceptibility test of P.aeruginosa was determined by PhoenixTM-100 system.Minimun inhibitory concentration(MIC) of povidone iodine,glutaraldehyde,chlorhexidine,symclosene and benzalkonium bromide was detected by liquid dilution method.RESULTS The resistant rates of ampicillin/sulbactam,chloramphenicol,tetracycline and trimethoprim-sulfamethoxazole in 190 isolates of P.aeruginosa were all more than 98.0%.However,P.aeruginosa was to imipenem and meropenem were 15.3% and 6.8%.It was found that P.aeruginosa possessed the most resistant to glutaraldehyde and symclosene with its MIC50 being 32 ?g/ml and 64 ?g/ml.But the MIC50 of chlorhexidine and benzalkonium bromide were only 1 ?g/ml and 2.4 ?g/ml.Meanwhile,time-kill assays indicated that chlorhexidine could still produce rapid and powerful bactericidal effects at a concentration of 1MIC after 10 min treatment.CONCLUSIONS There are distinct differences in P.aeruginosa against povidone iodine,glutaraldehyde,chlorhexidine,symclosene and benzalkonium bromide.It is very important that antiseptics should be used rationally.Measurements should be taken to decrease dissemination of resistant bacteria and prevent nosocomial infection.
10.The change trend of inflammatory mediators and oxidative stress markers after autologous orthotopic liver transplantation of rat
Qianqian ZHU ; Fei HUANG ; Yihan ZHANG ; Weifeng YAO ; Jun CAI
The Journal of Practical Medicine 2016;32(7):1077-1080
Objective To explore the pathological changes of lung, expression of the relevant inflammatory factors and oxidative stress markers of Sprague-Dawley (SD) rats undergoing autologous orthotopic liver transplantation (AOLT). Methods Thirty SD rats were randomized into sham group and AOLT group. The pathological changes of lung, expression of the relevant inflammatory mediators and oxidative stress markers were detected . Results ( 1 ) Compared with the sham group , the pathological scores of lung tissue in AOLT group increased significantly and reached its peak at 8 h after surgery. Then the pathological scores decreased to the level of sham within 24 h to 48 h after surgery; (2)The relative expression of inflammatory mediators including TNF-α, IL-1β, IL-6 and IL-8 increased significantly and reached its peak at 8 h after surgery in AOLT group. Then decreased to the level of sham group within 24 h to 48 h after surgery; (3)The change trends of MDA and H2O2 were similar to inflammatory mediators.The relative SOD expression decreased significantly and touched the nadir at 8h after surgery and then increased. Conclusion The pathological changes of lung expression, the relevant inflammatory mediators and oxidative stress markers of rats underwent AOLT were consistent.