1.The role of humoral immunity in liver graft rejection
Hongmeng DONG ; Duoxian ZHANG ; Xianliang LI ; Dongdong HAN ; Qiang HE
Chinese Journal of Hepatobiliary Surgery 2015;21(8):570-573
Acute rejection is one of the serious early postoperative complications after liver transplantation.Many studies have shown that acute rejection was mainly mediated by T cells,while humoral factors were responsible for chronic rejection.However,accumulating evidences have demonstrated that humoral immune factors also played an important role in early acute rejection and usually resulted in severe adverse events.Here we clarify the role of humoral immunity in liver transplant rejection,which may help guide the clinical management of such patients with humoral rejection after liver transplantation.
2.Research progress and experience on pancreaticoduodenectomy combined with vascular resection
Duoxian ZHANG ; Hongmeng DONG ; Qiang HE ; Xianliang LI
Chinese Journal of Hepatobiliary Surgery 2015;21(9):644-648
Pancreatic head carcinoma could easily invade the neighboring vessels due to its own biological features and anatomical location,which increases the technique difficulty and risk,leading to low resection rate.Recently,with the progress on the surgical techniques and perioperative management,and the emergence of neoadjuvant chemoradiation,vascular invasion is no longer the surgical contraindications and pancreaticoduodenectomy combined with vascular resection has saved many patients ' lives.However,the preoperative assessment,the timing of surgery,the vessel management during the surgery,and the prevention and treatment of the postoperative complications remain controversial.In order to achieve a clear understanding on the application of pancreaticoduodenostomy combined with vascular resection,here we review the recent publications and share the experiences on pancreaticoduodenectomy with portal and/or superior mesenteric vein resection from our center,which may help improve the safety and resection rate of pancreatic carcinoma and enhance the overall therapeutic efficacy of treating pancreatic cancer.
3.Surgical treatment of recurrent pseudocyst of auricle
Jia LI ; Duoxian LI ; Xiongwen LI ; Pengjian ZHANG
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2015;50(10):851-853
Objective To investigate the surgical techniques and skills for recurrent pseudocyst of auricle.Methods Retrospective analysis of 20 cases from January 2006 to May 2014 in our department,who were treated by the operations with skills as follows, resection the anterior wall of pseudocyst cartilage and perichondrium, grooves cutting the roughing the posterior cartilages wall, and local compression.Results All 20 patients were followed up for 8 to 42 months and all were cured.No recurrence, infections and malformation were happened.Conclusion Resection the anterior cartilage wall perichondrium of the pseudocyst, grooves cutting and roughing of posterior cartilages of the peudocyst, and in combined with local compression are effective treatment for recurrent cases.
4.Studies on paclitaxel-loaded methoxy poly (ethylene glycol)/poly (L-lactic acid) diblock copolymer nanoparticles.
Liandong DENG ; Duoxian SUN ; Yueting ZHANG ; Jianzhong HUO ; Yingjin YUAN ; Anjie DONG
Journal of Biomedical Engineering 2005;22(4):715-718
Paclitaxel-loaded methoxy poly (ethylene glycol )-b-poly (L-lactic acid) diblock copolymer nanoparticles (PMT) were prepared by a self-emulsification/solvent evaporation method. The PMT morphology, size and its distribution, and drug release in vitro were investigated by DLS, UV, TEM and HPLC. The results indicate that PMT show a spherical morphology with inner core and outer shell. The diameter (nm) of PMT increases with the increase of the drug-loaded amount. The initial burst release is not observed, the drug releasing rate in vitro is lower, and the accumulated release increases with the increase of replacement amout of the pH7. 4 medium. This study develops a new formulation for paclitaxel and provides an experimental basis for the intravenous administration of paclitaxel.
Antineoplastic Agents, Phytogenic
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administration & dosage
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Delayed-Action Preparations
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Drug Carriers
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administration & dosage
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chemistry
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Humans
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Injections, Intravenous
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Nanoparticles
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Paclitaxel
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administration & dosage
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Polyesters
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administration & dosage
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chemistry
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Polyethylene Glycols
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administration & dosage
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chemistry
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Polymers
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administration & dosage
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chemistry
5.Meta analysis of therapeutic effects on patients with ABO-incompatibility liver transplantation
Hongmeng DONG ; Yang DAI ; Xinxue ZHANG ; Duoxian ZHANG ; Chun BAI ; Xianliang LI ; Qiang HE
Organ Transplantation 2016;7(5):370-377
Objective To systematic evaluation the therapeutic effects on patients with ABO-incompatibility liver transplantation (ILT),and compare the curative effect with ABO-compatible liver transplantation (CLT). Methods The literatures of comparison in clinical efficacy between ILT and CLT were collected at home and abroad by computer search in PubMed database,Embase database,Cochrane database,Medline database,Web of science database,CNKI,Wanfang database,VIP database,et al,and the quality of literatures were accessed. Meta analysis was carried out by fixed effect model and random effect model with RevMan5.3 software. Results A total of 18 papers were included. The results of Meta analysis showed that there was no significant difference in the survival rates of recipient between ILT group and CLT group at 1 ,3 and 5 years after operation (all P>0.05 ). Compared with CLT group,the survival rates of grafts were significantly decreased in ILT group at 1 ,3 and 5 years after operation,and the difference was statistically significant (all P<0.05 ). The incidences of postoperative biliary complication and acute rejection in ILT group were significantly higher than those in CLT group,the difference was statistically significant (both P<0.05 ). Conclusions Compared with CLT, the curative effect of ILT is weaker but still can be used as a new choice for critical condition of the recipient or waiting for the donor liver for a long time.
6.Research Progress on the Role of HMGB1 in Regulating the Function of Osteoarthritis Chondrocytes
Xin QI ; Xiaogang ZHANG ; Haiyang YU ; Xin CHEN ; Wenbo AN ; Zhipeng WANG ; Duoxian WANG ; Pengfei LUO ; Yixin CHEN ; Jiaojiao MA ; Wei QI ; Ziyang HU ; Jianjun LIU
Medical Journal of Peking Union Medical College Hospital 2024;15(1):141-146
Osteoarthritis (OA) is a chronic degenerative joint disease whose main characteristic is the destruction of articular cartilage, causing pain and disability in patients and seriously affecting their quality of life. OA can be induced by a variety of causes, and pathological changes in articular cartilage are considered to be one of the key driving factors for the occurrence of OA. High mobility group box-1 protein (HMGB1), as a non-histone protein in eukaryotic cells, can participate in regulating the inflammation and apoptosis process of OA chondrocytes, thus leading to the occurrence of OA. This article reviews the research on the mechanism of HMGB1 in OA chondrocytes, with a view to providing new ideas for the clinical prevention and treatment of OA.