1.Surgical management of liver carcinoma accompanied by portal hypertension
Wei YANG ; Guojun WANG ; Siqin DING
Chinese Journal of General Surgery 1997;0(04):-
ObjectiveTo evaluate the effects of various surgical procedures on liver carcinoma accompanied by portal hypertension. MethodsOne stage surgical procedure was performed in 28 cases of liver carcinoma accompanied by portal hypertension in our department from January 1992 to June 2000. ResultsThere was no operative mortality. The postoperative complications developed in 39%(11/28). The postoperative survival rates of 1?2 and 3 years were respectively 91%, 61%, and 48%. Postoperative upper digestive tract hemorrhage developed in 9 cases, 13 cases died during follow-up period, of whom 6 cases died of the recurrence of liver carcinoma, 2 cases died of liver failure, 5 cases died of upper digestive tract hemorrhage.Conclusions The survival time can be prolonged and the postoperative complications reduced through prudent selection of surgical procedures in patients suffering from concurrent liver cancer and portal hypertension. Postoperative recurrent bleeding can be prevented by pericardial devascularization. In poor risk cases with huge carcinoma, simple surgical procedure should be applied,and with a discreet application of chemoembolization.
2.Glycosyl isomerization based on the biosynthesis of natural-product sugar from microorganism.
Wan SUN ; Haifeng LI ; Jing CHEN ; Guojun WANG ; Zhaoyong YANG
Acta Pharmaceutica Sinica 2013;48(2):179-86
Glycosylation, one of the most common and important reactions in biological systems, results in diverse functions and is often found in biologically active small-molecule natural products produced by microorganisms. Furthermore, sugar moieties are generally critical for their activities. Alternating the sugar structures thus provides the potentials for enhancing the biological activities of natural products, which evokes researchers to study the sugar biosynthetic machinery and its application in the modification of sugar moieties with an aim of generating unnaturally glycosylated natural product drugs with better activities. This review will briefly outline current studies on sugar biosynthesis and glycosyltransferase, with a few selected experiments designed to alter natural-product sugar structures.
3.Effectivity and safety of oxycodone plus acetaminophen for postoperative acute pain relief:a Meta-analysis
Jingping XIAO ; Guojun WANG ; Hengli LUO ; Ting YANG ; Gongli HU
Chongqing Medicine 2015;(30):4239-4243
Objective To assess the effectivity and safety of oxycodone plus acetaminophen for postoperative acute pain re‐lief .Methods Randomized controlled trials (RCT ) on combination of oxycodone plus acetaminophen treating postoperative pain re‐lief were searched from the following data‐bases as PubMed ,EMbase ,MEDLINE(Ovid) ,the Cochrane Library ,CNKI and WAN‐FANG from the date of their establishment to September 2014 .The data of RCT meeting the inclusive criteria were extracted ac‐cording to Cochrane methods by two reviewers independently ,and after the quality was evaluated and cross checked ,meta analyses were conducted using RevMan 5 .2 sotware .Results A total of 18 studies involving 2 213 patients were included .The results of Meta‐analyses showed that compared with placebo group or the equal dosage oxycodone alone group ,the combinations of oxycodone plus acetaminophen were more effective in postoperative pain relief (P<0 .01) .However ,there are no significant difference in the effective between the combinations of oxycodone plus acetaminophen and the higher dosage oxycodone alone group or the acetamin‐ophen alone group for postoperative pain relief (P>0 .05) .Adverse events occurred more frequently with combination therapy than placebo or acetaminophen alone group ,but were generally described as mild to moderate in severity and rarely led to withdrawal . There are no significant difference in the adverse events between the combination of oxycodone plus acetaminophen and the oxyc‐odone alone group .Conclusion The present study showed that combination of oxycodone plus acetaminophen is effective and high safe in postoperative acute pain relief .
4.Efficacy and Safety of Ramucirumab in the Treatment of Adenocarcinoma in Stomach or Gastroesophageal Junction:A Meta-analysis
Ting YANG ; Guojun WANG ; Biming FENG ; Jingping XIAO
China Pharmacy 2016;(6):789-792
OBJECTIVE:To systematically review the efficacy and safety of ramucirumab in the treatment of adenocarcinoma in stomach or gastroesophagealjunction,and provide evidence-based reference for clinic. METHODS:Retrieved from Wanfang database,CJFD,PubMed,EBSCO,Medline and Cochrane Library,randomized controlled trials(RCT) oframucirumab and (or) other medicines or other chemotherapy (test group) versus placebo or and Clinical Trials. gov other antibiotics(control goroup) were collected with time limit from establishment to Sept. 2015. Meta-analysis was performed by using Rev Man 5.3 software after data extraction and quality evaluation by Cochrane systematic review manual 5.1.0. RESULTS:Totally 3 RCTs involving 1 188 patients were enrolled,including 652 patients in the test group and 536 patients incontrol group. Results of Meta-analysis showed, the overall survival[HR=0.83,95%CI(0.72,0.95),P=0.006] and progression-freesurvival[HR=0.66,95%CI(0.47,0.92),P=0.01] in test group were significantly longer than control group,the difference was statistically significant;there was no significant difference in the objective response rate[RR=1.31,95%CI(0.81,2.11),P=0.28]. The incidence of severe adverse reactions(degree level:3-4 grade) in test group was significantly higher than control group,the difference was statistically significant [RR=1.14, 95%CI (1.00,1.29),P=0.04].CONCLUSIONS:Ramucirumab can extend overall survival and progression-free survival of adenocarcinoma in stomach or gastro-oesophageal junction,but the incidence of adverse reactions should be noticed.
5.Efficacy and Safety of Different Dosages of Oxycodone Plus Acetaminophen for Relieving Acute Pain after Oral Operation:A Systematic Review
Jingping XIAO ; Guojun WANG ; Hengli LUO ; Ting YANG ; Gongli HU
Herald of Medicine 2016;(2):192-196
Objective To assess the efficacy and safety of different dosages of oxycodone plus acetaminophen for treating acute pain after oral surgery,in order to provide a reasonable dosage of combination in clinic. Methods Randomized controlled trials ( RCTs ) on effect of combination of oxycodone plus acetaminophen on pain relief after oral operation were searched from the following data-bases:PubMed,EMbase,MEDLINE ( Ovid) ,the Cochrane Library,CNKI,and WANFANG from the date of their establishment to January 2015. The data of RCTs meeting the inclusive criteria were extracted according to Cochrane methods by two reviewers independently,and after the quality was evaluated and cross-checked,meta-analyses were conducted using RevMan 5.2 software. Results A total of 11 studies in 10 literatures involving 1 028 patients were included and were designated to 3 different dosage groups (5 mg/325 mg,10 mg/650 mg,10 mg/1 000 mg,respectively). The results of Meta-analyses showed that pain remission rate was significantly higher in the 3 different dosages of oxycodone plus acetaminophen groups than in the placebo group (RR5 mg/325 mg=3.35,95%CI [1.74,6.45],I2=38%,P=0.000 3;RR10 mg/650 mg=6.88,95%CI [4.00,11.83],I2=0%,P<0.000 01;RR10 mg/1 000 mg=4.94,95%CI [3.23,7.56],I2=81%,P=0.005). In additional,the RR of oxycodone 10 mg/acetaminophen 650 mg and placebo groups for pain remission rate was higher than that of the other 2 dosages groups,moreover,more studies were enrolled and its low heterogeneity led to high reliability. Usage rate of remedial painkillers was significally lower in oxycodone plus acetaminophen groups than in the placebo group (RR5mg/325mg=0.71,95%CI [0.60, 0.85],P<0.000 01;RR10mg/650mg=0.50,95%CI [0.41,0.61],P<0.000 01;RR10mg/1000mg=0.77,95%CI [0.66,0.90],P=0.001) ,In addition, the RRs of usage rate in oxycodone 10 mg/acetaminophen 650 mg and placebo groups were significantly lower than the other 2 dosages groups. Incidence rates of adverse effects were similar in the 3 different dosages groups and higher than that of the placebo group. However,the adverse events were generally described as mild to moderate in severity and rarely led to drug withdrawal according to all reports in the studies ( only one event ) . Conclusion The present study showed that combination of oxycodone plus acetaminophen can provide better analgesia in acute pain after oral surgery with high safety. In addition,combination of oxycodone 10 mg plus paracetamol 650 mg may be better for acute pain relief after oral surgery.
6.Umbilical cord blood mesenchymal stem cell transplantation for treatment of a child with spinal muscular atrophy
Ling DU ; Huaqiang YANG ; Na WANG ; Guojun LUO
Chinese Journal of Tissue Engineering Research 2011;15(36):6837-6840
BACKGROUND: Many animal and clinical studies have reported that the safe and effective usage of umbilical cord blood-derived mesenchymal stem cells (UCB-MSCs) transplantation for treatment of neurological genetic diseases.OBJECTIVE: To investigate the feasibility and effect of UCB-MSCs transplantation in the treatment of spinal muscular atrophy (SMA).METHODS: A child admitted at January 2010 had been confirmed as having SMA, and drug and rehabilitation therapies were invalid. Then, the child received UCB-MSCs transplantation via the first intravenous infusion and three times of subarachnoid injection, once a week, (4-6)×107 cells once and four times as a course. Neurological physical examination, biochemical test, muscle enzymes detection, FIM scoring and electromyography (EMG) examination were conducted. RESULTS AND CONCLUSION: Compared with prior to transplantation, the level of muscle enzymes decreased, FIM scores were increased from 68 to 93 points, EMG results showed that the motor units with re-contraction in each 10.0 ms were increased that the motor function was improved, the lower extremity muscle strength elevated, and the self-care ability was improved in the SMA child at 6 months after transplantation. During the 10-month follow-up, the child had no adverse effects. It is indicated that UCB-MSCs transplantation is effective to treat SMA, and the neurological function has a remarkable restoration.
7.A comparative study on three methods of enzyme linked immunosorbent assay for detecting hepatitis B virus Pre S1 and S2 antigen
Jie FU ; Guojun YANG ; Xingyu JIANG ; Xiaoyun PU
International Journal of Laboratory Medicine 2017;38(15):2017-2018,2021
Objective To compare the three different methods of enzyme linked immunosorbent assay(ELISA),to select the best method for clinical diagnosis and treatment.Methods Addcare ELISA800,TECAN freedom evolyzer and manual ELISA method were used to detect hepatitis B virus Pre S1 antigen(preS1Ag) hepatitis B virus Pre S2 antigen(preS2Ag) in confrontation control product samples and serum specimens from patients with HBV,and the results were analyzed by statistical methods.Results The batch precisions of the three methods to detect pre-S1Ag were 4.73%,5.38%,11.87%,the batch precisions of the three methods to detect pre-S2Ag were 4.91%,5.04%,11.75%.The inter batch precisions of the three methods to detect pre-S1Ag were 6.63%,7.90%,13.26%,the inter batch precisions of the three methods to detect pre-S2Ag were 6.74%,7.81%,12.59%.All the sensitivities were 100.00%.Conclusion All the three methods have good consistency,which could be used in the detection of Pre-S1Ag and Pre-S2Ag.The precision of Addcare ELISA800 is the best,which could further improve the quality of clinical testing.
8.Human bone marrow mesenchymal stem cells into vascular endothelial cells before and after differentiation induced differential expression of eNOS/activity and its metabolites
Xuelan LUO ; Wei CHEN ; Guojun MO ; Peng YANG ; Hesheng OU
Journal of Xi'an Jiaotong University(Medical Sciences) 2017;38(3):386-391
Objective To investigate the differences in eNOS gene expression,activity and its metabolites before and after human bone marrow mesenchymal stem cells (hBMSCs) are induced into vascular endothelial cells.Methods hBMSCs were induced into vascular endothelial cells.The morphological changes of the cells were observed under inverted microscope.Transwell assay was used to detect the cells' migration ability.The protein expression of eNOS was detected by immunofluorescence and Western blot.The activity of eNOS was detected by ELISA and the content of NO in cell culture supernatant was determined by nitrate reduction method.Results Compared with those in the undifferentiated group,the morphological changes of the differentiated cells were obvious.Cell migration ability increased by 238.10% (73.000±7.002 vs.21.000±4.359,P<0.05).The expression of eNOS protein increased by 114.72% (0.423±0.011 vs.0.197±0.079,P<0.05).The activity of eNOS was enhanced by 157.49% (4.967±0.073 vs.1.929±±0.103,P<0.05).The synthesis and release of NO increased by 155.67% (184.909±1.853 vs.72.323±0.426,P<0.05).Conclusion After hBMSCs are induced into endothelial cells,the expression of eNOS gene increases,their activities increase,synthesis and release of the metabolite NO increase.It may provide a basis for prevention and treatment of cardiovascular diseases with stem cells.
9.Quantitative efficacy evaluation of intravascular low-level He-Ne laser irradiation for heroin withdrawal syndrome
Wenying JIA ; Hongzhao TIAN ; Tingting YANG ; Guojun HAI
Chinese Journal of Tissue Engineering Research 2005;9(16):216-217
BACKGROUND: Intravascular low-level laser irradiation (ILLLI) therapy with He-Ne laser can effectively inhibit the occurrence of heroin withdrawal syndrome, but the therapeutic effect should be evaluated by quantitative standards.OBJECTIVE: To evaluate the effect of intravascular low-level He-Ne laser irradiation against withdrawal syndrome with intravenous according to the criteria proposed by the authors.DESIGN: Randomized controlled trial in heroin-addicted patients.SETTING: Analysis and Testing Laboratory of Xinxiang Medical College and Center of Laser Medical Research of Zhenzhou University Medical CollegePARTICIPANTS: The study was completed in Center of Laser Medical Research in Zhengzhou University in January 2003. Thirty heroin addicts from the Detoxification Center of Zhengzhou including 25 male and 5 female patients aged 19- 45 years were divided randomly into experimental group and control group with 15 cases in each. The patients' history of drug abuse ranged from 0. 5 to 5 years and the daily doses they took was 1.0-4.0 g.INTERVENTIONS: Patients in the experimental group were treated by ILLLI therapy after hospitalization. The therapy was administered once daily for 60 minutes in each session, for a total of 10 days for a treatment course. The irradiating power of the laser was 2.0-3.0 mW with a power density of 7.07-10.6 mW/mm2. Patients in the control group were treated with conventional therapy with algidon combined with buprenorphine hydrochloride. The 12 main symptoms(vomiting, goose pimples, sweating, agitation, shaking, lacrimation, nasal congestion, insomnia, abdominal pain,body temperature changes, muscular pain, and heart rate changes) were scored for 0, 1, 2, and 3 corresponding to absent, mild, moderate, and severe symptoms, with the total score of 36.MAIN OUTCOME MEASURES: Comparison of the scores for the withdrawal symptoms between the two groups.RESULTS: The 30 cases were all available for result analysis. The scores of vomiting, insomnia, agitation, shaking, goose pimples and abdominal pain in the experimental group were 2.0±0.5, 2.5±0.4,4.6±0.3,3.6±0.7,3.1±0.3 and 5.7±0.6 respectively, which were obviously lower than those in control group(5.1±0.7,6.0±0.7,7.4±0.6, 7.1±0.6,5.7±0.6 and 6.4 ±0.7 respectively, t =9.90-16. 81, P<0.01).CONCLUSION: Intravascular low-level He-Ne laser irradiation can effectively relieve heroin withdrawal syndrome.
10.Quantitative site of the related structures for approach of blocking the facial nerve
Fu WANG ; Congru QI ; Guojun YANG ; Zhihong CHEN
Chinese Journal of Tissue Engineering Research 2005;9(17):194-195
BACKGROUND: The blocking treatment can improve the clinic symptom of facial spasm. But the site, depth and the angle of puncturing point are very difficult to be defined, which will seriously infect the curative effect.OBJECTIVE: To study the applied anatomy of the related structures of facial muscle for blocking the facial nerve, and to provide anatomical bases for accurate puncturing point and preventing complications.DESIGN: An observation study based on cadavers and making the mimic puncture and measuring the correlative structures with anatomical method.SETTING: Department of anatomy in a medical college.PARTICIPANTS: Totally 28 adult male cadavers(56 sides) were used and the correlative index were measured.METHODS: The blocking point was located at the convergent point of the interior edge of cartilage of the external acoustic canal, the anterior fringe of mastoid processes and the posterior fringe of mandible ramus, the needle must be thrust vertically to the median sagittal plane. The puncturing needle stopped until it was barred. A longitudinal incision was made from the puncturing point to mandibula angle, and skin, superficial fascia were cut separately. Then carotid superficial fascia was cut from the posterior fringe of parotidean. The facial nerve trunk and the posterior auricular artery were preserved in site. A blunt isolation was made along its incision. Jugular glomus was appeared. Then the correlative index were measured and dealt with statistics method.MAIN OUTCOME MEASURES: The puncturing point, angle and depth,the distance between facial nerve trunk and puncturing point, the position relationship between facial nerve and puncturing needle and the distance relationship between facial nerve and principal structures adjacent to it.RESULTS: The blocking point was located at the convergent point of the interior edge of the external acoustic canal, the anterior fringe of mastoid processes and the posterior fringe of mandible ramus, the needle must be thrust vertically to the median sagittal plane. On the left side, the puncturing depth was (19.91 ± 0.09) mm, On the right side, the puncturing depth was(19.28±0. 10) mm.CONCLUSION: The experimental study could provide accurate puncturing point, angle and depth for blocking the facial nerve and bring the blocking treatment into full play.