2.Research advances on signal transduction pathways as therapy targets in gastric cancer
Lihui WANG ; Jingyu YANG ; Chunfu WU
Chinese Pharmacological Bulletin 1987;0(02):-
During the last forty years, although cytotoxic chemotherapy for gastric cancer patients has improved to some extent, its therapeutic effect is limited. Simultaneously, great progression of oncobiology to increase our understanding of the molecular basis of gastric cancer has been made. Currently the cancer cell has been characterized by several genetic changes that lead to altered cellular functions. In addition, multiple cancer-cell environment factors affect the tumor cell via various receptors and subsequent signaling pathways. The increasing knowledge of cellular signaling offers the opportunity to develop novel substances that target specific pathway molecules.
3.Quantitative Evaluation on Adverse Drug Reaction Signal in FDA and Its Illumination
Yuxia BI ; Chunfu WU ; Jingyu YANG
China Pharmacy 2005;0(18):-
OBJECTIVE: To analyze and evaluate the quantitative evaluation of ADR signals in FDA and to provide a reference for ADR evaluation in China. METHODS: By means of literature review,contrasting analysis and data reduction,ADR signal evaluation in FDA was investigated. RESULTS&CONCLUSION: In USA MGPS method is used for the quantitative evaluation of ADR signal, which can earlier obtain ADR signal and effectively promote the risk warning ability of ADR information. This is practical in our country and we should learn from them. Combined with various data analyzing methods, we can set up a high-quality evaluation database for ADR signals. The importance of pharmacoepidemiology and statistics in ADR evaluation should be highly recognized and the methods for ADR signals evaluation should be gradually shifted from qualitative to quantitative evaluation.
4.Monitoring of Adverse Drug Reaction in Netherlands and Quantitative Evaluation on ADR Signal
Yuxia BI ; Chunfu WU ; Jingyu YANG
China Pharmacy 2001;0(11):-
OBJECTIVE:To provide reference for ADR evaluation in China.METHODS:The ADR signal evaluation method adopted by the pharmacovigilance center in Netherlands was analyzed by means of literature review,contrasting analysis and data reduction etc.RESULTS & CONCLUSION:We should draw experience from the pharmacovigilance center in Netherlands about the evaluation method on ADR signal and establish ADR evaluation databases of high quality;furthermore, we should attach great importance to the application of pharmacoepidemiology and statistics in ADR evaluation and gradually replace the qualitative evaluation with quantitative one for ADR signal.
5.Conversion treatment with sirolimus in lung transplant recipients
Dong WEI ; Fei GAO ; Bo WU ; Min ZHOU ; Jingyu CHEN
Chinese Journal of Organ Transplantation 2015;36(8):490-494
Objective To explore the efficacy and safety of conversion from calcineurin inhibitor (CNI) to sirolimus (SRL) as major immunosuppressive therapy in lung transplant recipients.Method Retrospective analyses were conducted for the clinical data of all the patients undergoing lung transplantation in Wuxi People's Hospital between January 2011 and December 2014.Sixteen were given conversion treatment with Sirolimus in the postoperative irnmunosuppressive therapy.We analyzed the opportunity and reasons in the conversion treatment,and the safety,effectiveness and complications of the conversion treatment.Result The follow-up period was 8 to 25 months,and the median time of conversion was 6 months after operation (2-18 months).The indications of conversion concluded:malignant tumor (n =8),renal dysfunction (n =5),lymphangioleiomyomatosis (n =1) and intractable diarrhea caused by CNIs (n =2).Four cases suffered from interstitial pneumonitis associated with Sirolimus and one case suffered from spontaneous pneumothorax,and they all conversed back to CNIs.In those patients,cancer recurrence occurred in 4 cases (of them,there were 3 deaths),and 3 patients developed chronic rejection.Those recipients receiving the conversion treatment due to renal dysfunction showed recovery of renal function to some extent.Conclusion It's effective and safe to converse the immunosuppressive therapy based on Sirolimus.Sirolimus should be reduced or withdrawn when interstitial pneumonitis associated with Sirolimus occurred.
6.Posttransplant immunosuppression regimens in 100 lung transplant recipients
Wenjun MAO ; Jingyu CHEN ; Mingfeng ZHENG ; Bo WU ; Ji ZHANG
Chinese Journal of Organ Transplantation 2013;(1):28-32
Objective To evaluate the safety and effectiveness of immunosuppression regimens,postoperative complications,dead causes and risk factors of lung transplantation (LTx).Methods The immunosuppression regimens and clinical data of 100 patients with end-stage lung diseases receiving LTx in our hospital were retrospectively analyzed between Sept.2002 to Dec.2010.There were 72 patients subject to single LTx and 28 patients to bilateral LTx,amongst them 61 patients received LTx under circulation support,including 5 cases of cardopulmonary bypass (CPB) support and 56 cases of extracorporeal membrane oxygenation (ECMO) support.The immunosuppression regimens including Cyclosporin,mycophemolate Mofeil and corticosteroids were utilized in 53 recipients before the year of 2007,and Cyclosporin was switched to Tacrolimus in 47 patients after 2007.All the patients received Daclizumab or Basiliximab as immunosuppression induction regimens.Results The 1-,2-,3-and 5-year survival rate after LTx was 73.3%,61.6%,53.5% and 40.7% respectively.The mean survival time post-transplant in the patients who received Cyclosporin-based regimens and Tacrolimus-based regimens were (36.57 ± 3.44) months and (35.00 ± 2.33) months,repectively,with no significant differences (P>0.05).The main causes of mortality included primary graft dysfunction (PGD),acute rejection (AR),bronchiolitis obliterans (BOS) and sepsis.The incidence of AR and BOS in Tacrolimus group was significantly lower than that in Cyclosporin grou (P <0.05),but the incidence of diabetes mellitus was significantly higher in Tacrolimus group.Analysis of Spearman rank correlation revealed that there was a direct correlation between the incidence of AR and BOS (r =0.340,P<0.01).The use of circulation support,diagnosis of IPF,postoperative complications such as AR,BOS and infection were associated with decreased survival time postoperatively,in both univariate and multivariate proportional hazards regression models (P<0.05).Conclusion Cyclosporin-and Tacrolimus-based regimens were both effective immunosuppression strategies postoperatively,Consummate follow-up surveillance and prompt treatment of complications were the key points in prolongation of survival time and improving quality of life after LTx.
7.FLAVONOID CONTENTS OF COMMON VEGETABLES IN CHINA
Changjiang GUO ; Jing XU ; Jingyu WEI ; Jijun YANG ; Jianquan WU
Acta Nutrimenta Sinica 1956;0(02):-
Objective To analyze the flavonoid content of common vegetables consumed in China.Method Forty-six vegetables were sampled from Beijing,Tianjin,Shanghai and Hangzhou.The contents of quercetin,kaempferol,luteolin,myricetin,apigenin were determined with high-performance liquid chromatography.Results Mei celery sampled from Hangzhou was the highest in content of 5 flavonoids among 46 vegetables.Quercetin distributed more widely and was more abundant than other flavonoids in vegetables.The daily intake of 5 flavonoids from vegetables by Chinese people was estimated to be 13.90 mg,in which quercetin accounted for 51.1%.Conclusion The content of flavonoids varies significantly among different vegetables and quercetin is the most common flavonoid contained in vegetables.The dietary intake of flavonoids was more from vegetables than fruits in Chinese people.
8.Experimental study of excitability and autorhthmicity in urinary bladder detrusor of diabetes rats.
Dongwen, WANG ; Weibing, SHUANG ; Jingyu, WANG ; Zhangqun, YE ; Bowei, WU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2005;25(5):568-70
The changes in excitability and autorhthmicity of bladder detrusor in experimental non-insulin dependent diabetes mellitus (NIDDM) rats were observed. Sixty-nine NIDDM rats as NIDDM group and 69 normal rats as control group were enrolled into this experimental study. At 6th, 10th, 14th, 18th, 22nd and 26th week after the rats were injected last time, the changes in the excitability and autorhthmicity of detrusor strips in vitro were observed. The results showed that the threshold of the tension which made the detrusor strips contract was significantly higher in NIDDM group (0.716 +/- 0.325 g) than in control group (0.323 +/- 0.177 g) (F = 59.63, P < 0.001). At different stages, the threshold of the tension resulting the contract of the detrusor strips in NIDDM group was also higher than in control group. At 18th week after STZ injection, the frequency of spontaneous contract of the detrusor strips in NIDDM was significantly higher than in control group (P < 0.05), whereas at 22nd week, that in NIDDM group was significantly lower than in control group (P < 0.05). It was concluded that the decreased excitability of the bladder detrusor was the earliest and most obvious changes in bladder function in diabetes rats and the autorhthmicity had also changed at the early stage of diabetic bladder.
Diabetes Mellitus, Experimental/*physiopathology
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Diabetes Mellitus, Type 2/physiopathology
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Muscle Contraction/physiology
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Muscle Relaxation/physiology
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Rats, Wistar
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Urinary Bladder/*physiopathology
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Urinary Bladder Diseases/etiology
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Urinary Bladder Diseases/*physiopathology
9.Inhibitory effect of G1 on the endoplasmic reticulum stress in EA.hy926 endothelial cells
Donghui XIA ; Xingyi CAO ; Jingyu WANG ; Ming YUAN ; Shiwen WU
Acta Laboratorium Animalis Scientia Sinica 2014;(2):26-31
Objective To observe the effect of GPR30 agonist G1 on high glucose-induced endoplasmic reticulum stress ( ERS) in endothelial EA .hy926 cells.Methods EA.hy926 endothelial cells were divided into three groups:nor-mal control group (Con, 17.51 mmol /L glucose), high glucose (HG, 33.3 mmol /L), high glucose +G1 group (HG+G1, HG +1 μmol/L G1).The apoptosis rate of endothelial cells was measured by flow cytometry , the protein expres-sion changes of ERS related molecules Bip , IRE1, PERK and apoptotic molecules Bax , Bcl-2 were measured by Western blot, the mRNA expressions of Bip and CHOP were measured by RT-PCR assay.Results Compared with Con group , the apoptosis in HG group was significantly increased (P <0.01), Bip, IRE1, PERK and apoptotic molecule Bax were upreg-ulateded (P <0.05, P<0.01 or P <0.001), Bcl-2 downregulatted (P <0.01) and Bip mRNA, CHOP mRNA expres-sion were upregulated (P <0.001 and P<0.01).Compared with the HG group, apoptosis rate in HG +G1 group was significantly lower (P <0.05), BIP, IRE1, PERK and apoptotic molecules Ba.0 downregulated ( P <0.05 or P <0.01), Bcl-2 expressions was increased (P <0.05), Bip mRNA and CHOP mRNA expression were decreased (P<0.001 or P<0.01).Conclusion GPR30 agonist G-1 inhibits EA.hy926 ERS in endothelial cells.
10.Early respiratory infections in lung transplantation recipients from donation after cardiac death donors
Bo WU ; Ji ZHANG ; Dong WEI ; Jingyu CHEN
Chinese Journal of Organ Transplantation 2015;36(5):261-264
Objective To explore the epidemiology,etiology and prevention strategy of early respiratory infections (≤1 month) in lung transplantation recipients with donation after cardiac death donors.Method The clinical data of donors and recipients,particularly on early respiratory infections,were retrospectively analyzed in 17 lung transplantations.Result From Jan.2015 to Apr.2015,12 episodes of early respiratory infections (≤ 1 month) in 17 lung transplantation recipients occurred (12/17,70.6%).The organisms most frequently involved were bacteria:Pseudomonas aeruginosa (4/26,15.4%),Klebsiella pneumoniae (4/26,15.4%),Staphylococcus aureus (3/26,11.5%),and Acinetobacter baumannii (3/26,11.5%).Of 26 bacterial strains,3 were Methecillin resistant Staphlococcus aureus,3 were carbapenem resistant Acinetobacter baumanni,2 were carbapenem resistant Pseudomonas cepacia,2 were extended spectrum b-lactamase-producing Klebsiella pneumoniae,and one was carbapenem and quinolone resistant Pseudomonas aeruginosa.Conclusion The morbidity of early infections is high in lung transplantation recipients.In our experience,bacterial respiratory infections are most common in the early post-transplant period (≤ 1 month).Incidence of Aspergillus spp.and Cytomegalovirus pneumonia is lower than before lung transplantation,probably due to the spread of universal prophylaxis.