2.Controlled clinical studies on drug-induced liver injury in the elderly Chinese patients: a literature review
Ying ZHANG ; Gansheng ZHANG ; Zhijun BAO ; Songbai ZHENG ; Xiaofeng YU
Chinese Journal of General Practitioners 2013;12(11):890-893
Objective To review the clinical features of drug-induced liver injury (DILI) in elderly Chinese patients.Methods A literature search was conducted with the key wordsdrug-induced liver injury ordrug-induced liver disease andelderly; four Chinese medical databases were used:including Chinese Biomedical Literature Database (CBM),Chinese Science and Technology Periodical Database (VIP),Wanfang Database and China National Knowledge Infrastructure (CNKI),from when the bases established to December 2011.Data from retrieved literatures of retrospective controlled studies of DILI were analyzed by SPSS 14.0 software.Results Five studies met the inclusion criteria,including 275 elderly patients (aged group) and 602 non-elderly patients (non-aged group) with DILL There was no significant difference in gender between the two groups (P > 0.05).Clinical manifestations of jaundice,fatigue,anorexia,and skin itching were more commonly seen in the aged group (P < 0.01).Cholestatic hepatic injury occurred more frequently in the aged group than in the non-aged group [24.9% (61/245) vs.18.8% (102/245),P < 0.05],while hepatocellular type occurred more frequently in the non-aged group [64.3% (350/544) vs.55.1% (135/245),P < 0.05].More DILI were induced by Chinese herb medicine and cardiovascular drugs in the aged group than in the non-aged group [47.0% (79/168) vs.35.9% (93/254) and 8.3% (14/168) vs 1.2% (3/259) respectively,P < 0.05].As for the prognosis,there was no significant difference in clinical cure and improvement rate between the two groups [84.4% (141/167) vs.81.5% (291/357),P >0.05].Conclusion The elderly are more sensitive to the drugs and have a high risk of DILI.Prevention and timely diagnosis and treatment of DILI are particularly important for elderly patients.
4.Efficacy of choledochoscopy for the treatment of postoperative intrahepatic duct stones and strictures
Yuehua GUO ; Zhuo ZHANG ; Yang MA ; Shiyun BAO ; Xiaofang YU
Chinese Journal of Digestive Surgery 2013;12(8):616-619
Objective To summarize the experience of surgical management of postoperative intrahepatic duct stones and strictures with choledochoscope.Methods The clinical data of 1241 patients with intrahepatic duct stones and strictures who were admitted to the Shenzhen People's Hospital from January 2000 to December 2011 were retrospectively analyzed.All patients were divided into postoperative choledochoscopy group (652 patients were treated by choledochoscope through T-tube fistula) and conservative treatment group (589 patients were treated by cholangic and antibiotic drugs) according to treatment plan.The clinical data including stricture alleviation,incidence of complications and treatment efficacies of the 2 groups were compared using the chi-square test.Results In the postoperative choledochoscopy group,the intrahepatic duct stones of 630 patients were completely removed,with the removal rate of 96.63% (630/652),which was significandy higher than 76.23% (449/589) of the conservative treatment group (x2=113.407,P < 0.05).A total of 1237 intrahepatic duct strictures were detected in the postoperative choledochoscopy group,including 698 cases of membranous stricture (the length of strictured bile duct < 2 mm),529 cases of spool-shaped stricture (2 mm ≤ the length of strictured bile duct ≤5 mm),8 cases of long tube-shaped stricture (the length of strictured bile duct > 5 mm),2 cases of crackshaped stricture.The alleviation rate of the stricture was 99.35% (1229/1237).The conditions of 6 cases of long tube-shaped stricture and 2 cases of crack-shaped stricture were not alleviated.There were 986 cases of intrahepatic duct strictures in the conservative treatment group,and the stricture alleviation rate was 80.43% (793/986).There was a significant difference in the stricture alleviation rate between the 2 groups (x2=238.994,P < 0.05).Nine patients in the postoperative choledochoscopy group had severe complications.Five patients had intrahepatic duct hemorrhage with a volume of blood loss more than 1500 ml,and they were treated by balloon dilatation hemostasis.One patient with repeated intrahepatic duct bleeding received hepatectomy.Two patients with severe intrahepatic cholangitis received choledochoscopy.Two patients had incomplete formation of sinus and they received implantation of biliary stents under duodenoscope.Conclusion Standard surgical management with choledochoscope can effectively alleviate postoperative intrahepatic duct stones and strictures.
5.Therapeutic effect of a natural squamosamide derivative FLZ on Parkinson's disease model mice induced by LPS plus MPTP.
Linghong YU ; Huailing WEI ; Xiuqi BAO ; Dan ZHANG ; Hua SUN
Acta Pharmaceutica Sinica 2013;48(10):1557-62
The aim of this study is to investigate the protective effect of N-[2-(4-hydroxyphenyl)ethyl]-2-(2, 5-dimethoxyphenyl)-3-(3-methoxy-4-hydroxyphenyl)acrylamide (FLZ), a novel synthetic squamosamide cyclic derivative, against Parkinson's disease (PD) model mice induced by the inflammatory bacterial endotoxin, lipopolysaccharides (LPS) and the neurotoxin 1-methy-4-phenyl-1, 2, 3, 6-tetrahydropyridine (MPTP). C57/BL mice were ip injected LPS (5 mg x kg(-1)) once. One week following the LPS injection, mice received a subcutaneous injection of MPTP (25 mg x kg(-1)) once daily for 2 days. Eight weeks later, FLZ (25, 50 and 75 mg x kg(-1)) was orally administered to mice once daily for 60 days. The motor ability of the mice was evaluated by rod climbing test and footprint test. The dopamine (DA) levels in mouse striatum were determined by high performance liquid chromatography system. The tyrosine hydroxylase (TH)-positive cells were showed by immunohistochemical analysis. FLZ treatment significantly improved motor dysfunction of mice challenged by LPS plus MPTP. The increase of TH-positive cell numbers and elevation of DA levels may be contributed to the beneficial effects of FLZ on motor behavior. This study showed FLZ has significant therapeutic effect on LPS plus MPTP induced chronic PD model, which indicates its potential as a new candidate drug to treat PD.
6.The role of heat shock protein 70 in regulating neuroinflammation.
Wenwen YU ; Xiuqi BAO ; Hua SUN ; Dan ZHANG
Acta Pharmaceutica Sinica 2015;50(8):945-50
Neurodegenerative disease is characterized by progressive loss of neurons in specific brain regions that results in neuronal dysfunction of the central nervous system. Although the pathological mechanism is not fully established, the activation of glial cells mediated neuroinflammation appears to be involved. Heat shock protein 70 (HSP70) is originally described as intracellular chaperone, which plays an important role in protein quality control in cells. However, recent study showed that up-regulation of HSP70 had anti-inflammatory effects in the brain. HSP70 protected neurons from damage and improved neurological function by decreasing inflammatory response as indicated by inactivation of glial cells and inhibition of pro-inflammatory cytokine release. So it is of great significance to find new compounds targeting at HSP70 as neuroprotective agents to delay the progress of neurodegenerative disease. This review will focus on the role of HSP70 in neuroinflammation and the recent advances in using HSP70 as a target for the treatment of neurodegenerative disease.
7.Source data management in clinical researches.
Effie HO ; Chen YAO ; Zi-bao ZHANG ; Yu-xiu LIU
Acta Pharmaceutica Sinica 2015;50(11):1367-1373
Source data and its source documents are the foundation of clinical research. Proper source data management plays an essential role for compliance with regulatory and GCP requirements. Both paper and electronic source data co-exist in China. Due to the increasing use of electronic technology in pharmaceutical and health care industry, electronic data source becomes an upcoming trend with clear advantages. To face new opportunities and to ensure data integrity, quality and traceability from source data to regulatory submission, this document demonstrates important concepts, principles and best practices during managing source data. It includes but not limited to: (1) important concepts of source data (e.g., source data originator, source data elements, source data identifier for audit trail, etc.); (2) various modalities of source data collection in paper and electronic methods (e.g., paper CRF, EDC, Patient Report Outcomes/eCOA, etc.); (3) seven main principles recommended in the aspect of data collection, traceability, quality standards, access control, quality control, certified copy and security during source data management; (4) a life cycle from source data creation to obsolete is used as an example to illustrate consideration and implementation of source data management.
China
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Data Collection
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standards
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Documentation
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standards
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Information Storage and Retrieval
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methods
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standards
8.Influence of lamotrigine on multidrug resistance gene expression in the hippocampus of epileptic immature rats.
Bao-min LI ; Dong-qing ZHANG ; Zhen YU
Chinese Journal of Pediatrics 2009;47(5):382-383
Animals
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Epilepsy
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genetics
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metabolism
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Genes, MDR
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Hippocampus
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drug effects
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metabolism
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Male
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Rats
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Rats, Wistar
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Triazines
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pharmacology
9.The role of heat shock protein 70 in regulating neuroinflammation.
Wen-wen YU ; Xiu-qi BAO ; Hua SUN ; Dan ZHANG
Acta Pharmaceutica Sinica 2015;50(8):945-950
Neurodegenerative disease is characterized by progressive loss of neurons in specific brain regions that results in neuronal dysfunction of the central nervous system. Although the pathological mechanism is not fully established, the activation of glial cells mediated neuroinflammation appears to be involved. Heat shock protein 70 (HSP70) is originally described as intracellular chaperone, which plays an important role in protein quality control in cells. However, recent study showed that up-regulation of HSP70 had anti-inflammatory effects in the brain. HSP70 protected neurons from damage and improved neurological function by decreasing inflammatory response as indicated by inactivation of glial cells and inhibition of pro-inflammatory cytokine release. So it is of great significance to find new compounds targeting at HSP70 as neuroprotective agents to delay the progress of neurodegenerative disease. This review will focus on the role of HSP70 in neuroinflammation and the recent advances in using HSP70 as a target for the treatment of neurodegenerative disease.
Brain
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physiopathology
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Cytokines
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HSP70 Heat-Shock Proteins
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physiology
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Humans
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Inflammation
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pathology
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Neurodegenerative Diseases
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physiopathology
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Neurons
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pathology
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Neuroprotection
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Up-Regulation