1.Clinical analysis of seven patients with acute aluminum phosphide poisoning.
Chinese Journal of Industrial Hygiene and Occupational Diseases 2006;24(4):253-254
Acute Disease
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Adolescent
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Adult
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Aluminum Compounds
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poisoning
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Child
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Female
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Humans
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Male
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Middle Aged
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Pesticides
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poisoning
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Phosphines
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poisoning
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Poisoning
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diagnosis
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therapy
4.Analysis of plague monitoring results in Zhangye city Gansu province from 1982 to 2011
Biao, YUAN ; Xing-Rong, MA ; Zi-zhou, LIU ; Bin-guo, RONG
Chinese Journal of Endemiology 2012;31(5):548-551
Objective To analyze the monitoring results of human and animal plague in Zhangye city from 1982 to 2011,and further explore the prevention and control policies and measures to control the spread of the disease.Methods The trends of human and animal plague were studied by retrospective survey in Zhangye city.Information of animal and human plague epidemic and prevention and control measures were collcoted and assessed with epidemiology methods,and the density of rodents,the rodents infected with flea,flea index and other indicators were calculated.Results 1982-2011,there were 6 cases of human plague incidence of 6 cases,of which 2 cases cured,4 cases died,the mortality rate was 67%; detection of Yersinia pestis from the captured 5167 animals was 93 strains from 1982 to 2011,the detection rate was 1.80%; 29 840 various vector insects were collected from the body surface of the 5167 animals captured,21 206 hole dries,and three marmot dens.A total of 7050 groups of Marmota parasites and hole stem fleas were inspected,52 strains of Yersinia pestis were isolated,and the average detection rate was 0.74%; 3912 marmot serums were detected,178 were positive,and the positive rate was 4.55%.Conclusions The prevention and control of plague is still very grim in Zhangye city.It is recommended to take publicity,education and active surveillance measures in the future to deal with emergencies and other.
5.Pharmacokinetics behavior of raltitrexed in rats after repeatedly injected with Huangqi injection.
Rong XING ; Biao QU ; Jia-Wei SONG ; Kai ZHOU ; Qiao LIAO
China Journal of Chinese Materia Medica 2014;39(11):2140-2143
In this study, the variation of pharmacokinetics behavior of raltitrexed (RTX) in rats after repeatedly injected with Huangqi injection was investigated. Twelve SD rats were divided into two groups: the multidose group and the RTX group. Rats in multidose group were iv. injected with Huangqi injection (dose of 1.575 mL x kg(-1)) everyday at 8 am for a week, and had free accesses for food and water. The rats were fasted for food but not water since 8 h before the eighth day. At the eighth morning, firstly, rats were injected with Huangqi injection (dose of 1.575 mL x kg(-1)), and 5 min later, were injected with RTX (dose of 0.467 mg x kg(-1)); rats in RTX group were not disposed in the previous seven days, also had free accesses for food and water, and were iv. injected with raltitrexed at the same time as Multidose group at the eighth day morning. Rat plasma was collected at different time and processed with methanol to precipitate the protein before HPLC assays. The pharmacokinetics parameters for two groups were calculated by software 3P97. Through the observation of drug concentration in plasma and time curve, we found that at almost every time point the concentration of RTX in plasma in multidose group was lower than the RTX group. When comparing the pharmacokinetics parameters between the multidose group and the RTX group, the average of AUC(0-t) and half-life(t1/2) of multidose group were decreased from 56 080 microg x min x L(-1) and 15.07 min to 35 834 microg x min x L(-1) and 8.95 min, respectively, while the clearance (CL) was increased from 0.51 to 0.83 mL x h(-1). Therefore, it could be deduced that repeatedly injected with AR injection may influence the renal excretion and glycometabolism of RTX, thus change pharmacokinetics behavior of raltitrexed in rats plasma. This result may give us a hint to prudantly manage the drug combination of RTX and Huangqi injection.
Animals
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Drugs, Chinese Herbal
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administration & dosage
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pharmacokinetics
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Female
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Injections
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Male
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Quinazolines
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administration & dosage
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blood
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pharmacokinetics
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Rats
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Rats, Sprague-Dawley
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Thiophenes
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administration & dosage
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blood
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pharmacokinetics
6.Identification of peptides binding to Pisum sativum agglutinin from a phage-displayed random peptide library.
Xiang ZHOU ; Jin-biao ZHAN ; Xian-rong MAO ; Ke-yi WANG
Journal of Zhejiang University. Medical sciences 2005;34(5):412-416
OBJECTIVETo obtain peptides binding specifically to Pisum sativum agglutinin (PSA) from a phage-displayed random peptide library.
METHODS(1) A phage-displayed random hexapeptide library was screened with PSA as target. (2) Dot blot was used to analyze the influence of the alpha-Met-D-mannoside on binding between PSA and phage-displayed peptides. (3) Three peptides (RMWSF, RYDYSY, LRLRQL) were selectively synthesized, and different concentrations were used to inhibit PSA and ConA binding to the HRP.
RESULTSThe enrichment occurred obviously after three rounds of screening. The insert sequences of amino acids, displayed on 22 phage DNAs from the third round of screening, were divided into three groups. The binding of phage-displayed peptides to PSA was specific as shown by dot blot and could be inhibited by alpha-Met-D-mannoside. LRLRQL was not dissolved in water. ARMWSF and RYDYSY inhibited binding of PSA to HRP, but failed to inhibit binding ConA to HRP.
CONCLUSIONThe binding site of peptides ARMWSF and RYDYSY is different to that of alpha-Met-D-mannoside.
Binding Sites ; Peptide Library ; Peptides ; metabolism ; Plant Lectins ; metabolism ; Protein Binding ; Recombinant Proteins ; metabolism
7.Forensic Pathological Examination on 73 Medical Malpractice Cases of Pediatrics
Zhi-Wei ZHANG ; Zi-Yu ZHENG ; Rong LI ; Shi-Yi ZHOU ; Wei TANG ; Ji-Peng ZHOU ; Biao WANG
Journal of Forensic Medicine 2018;34(2):147-149
Objective To analyse 73 medical malpractice cases of pediatrics for discussing the importance of forensic pathology in solving the issues such as medical malpractice of pediatrics. Methods From January 2002 to August 2016, 73 medical malpractice cases of pediatrics with age of death between 28 days old and 10 years old were collected from Institute of Judical Expertise of Nanjing Medical University. The relationship between causes of death and related medical institutions was retrospectively analysed. Results In 73 cases, the male to female ratio was 1.70:1, and ages of 28 days old to 1 year old were com-mon (26 cases, 35.62%), followed by ages between 1 year old and 3 years old (21 cases, 28.77%). In 71 cases which had been determined the cause of death by postmortem examination, the main cause of death was disease, especially respiratory diseases (33 cases, 46.48%), followed by cardiovascular diseases (12 cases, 16.90%). In 75 medical institutes which involved with these medical malpractices, most were tertiary medical institutes (32, 42.67%), followed by the sub-secondary (excluding the secondary) medi-cal institutions (23, 30.67%). The clinical diagnosis of 38 cases (52.05%) completely or mostly corre-sponded with the pathological findings. There were 35 cases (47.95%) undefined or misdiagnosed cases. Conclusion Autopsy and forensic pathological examination contribute to determine causes of death, which not only provide scientific evidence for medical malpractice of pediatrics, but also enrich and develop clinical medical knowledge, and thus improve diagnosis and treatment level in a certain extent.
8.Effects of ginkgo biloba extraction on contraction capacity of diaphragm from type 2 diabetic rats.
Xu-sheng LI ; Yong-qiang FU ; Biao ZHOU ; Ye HU ; Guo-rong CHEN
Chinese Journal of Applied Physiology 2010;26(2):249-251
OBJECTIVETo investigate the effects of Ginkgo biloba extract (GbE) on the activities of energy metabolism enzymes and contraction capacity of diaphragm from type 2 diabetic rats.
METHODSForty SD male rats were randomly divided into normal control group (n=10) and model group (n=30). Type 2 diabetes models were induced by feeding with high-sucrose-high-fat diet and intraperitoneal injecting 25 mg/kg streptozotocin. 20 successful models were rearranged to two groups: diabetic group and GbE treatment group, 10 rats in each. Then the saline and 8 mg/(kg x d) of GbE were respectively intraperitoneal injected, once a day continuously for 8 weeks. Then diaphragm contractility was assessed using Peak twitch tension (Pt), Maximum tetanic tension (P0) and fatigue index (FI) in vitro diaphragm strip preparations. Cytochrome oxidase (CCO), lactate dehydrogenase (LDH) and succinate dehydrogenase (SDH) in diaphragm were detected and the varieties of diaphragm ultrastructure were observed.
RESULTSCompared with control group, Pt, P0 and FI in diabetic group decreased significantly (P < 0.01); the activity of CCO, LDH and SDH in the tissues was more obviously reduced than those in control group (P < 0.01). The ultrastructure in diabetic group under electron microscope indicated that diaphragm mitochondrions swelled and degenerated. The above changes were inhibited by GbE.
CONCLUSIONGbE can enhance contraction capacity of diaphragm from type 2 diabetic rats by increasing the aerobic oxidation capacity, glycolytic capacity and the function of respiratory chain.
Animals ; Diabetes Mellitus, Experimental ; physiopathology ; Diabetes Mellitus, Type 2 ; physiopathology ; Diaphragm ; drug effects ; physiopathology ; Drugs, Chinese Herbal ; pharmacology ; Ginkgo biloba ; chemistry ; Male ; Muscle Contraction ; drug effects ; Random Allocation ; Rats ; Rats, Sprague-Dawley
10.An analysis on epidemiological characteristics of foodborne disease outbreak occurred in Zhejiang Province,2015
Da-Fang ZHU ; Biao ZHOU ; Jiang CHEN ; Ning-Bo LIAO ; Rong-Hua ZHANG
Journal of Preventive Medicine 2016;28(10):1005-1009
Objective To learn the epidemiological characteristics of foodborne disease outbreak in 2015,Zhejiang Province,and to provide evidences for the prevention and control of foodborne disease outbreak.Methods Descriptive epidemiological analysis using ArcGIS 10.2 and SPSS 19.0 was conducted on geographical country data,information of permanent resident population and the incidence data of foodborne disease outbreak reported through foodborne disease outbreak reporting information system in 2015.Results There were 116 foodborne disease events reported in Zhejiang in 2015,resulting in 1 009 persons attacked,115 hospitalization and 10 deaths.The proportion of unknown pathogenic factor for events was 29.31%.The events appearance sporadic,there were some local hotspots in Jiaxing.The vibrio parahaemolyticus was the most common pathogen (32.76%),and poisonous mushrooms(8.62%)come the second.Most foodborne disease incidents occurred during June to November.Restaurants ,family and rural feasts were the major places where the foodborne disease occurred.The proportion of family foodborne disease events because of mistaken and misuse poisonous substances increased,and the hospitalization rate and mortality of events of which were the highest (33.9% and 7.63% respectively).Conclusion The food safety management and of restaurants and rural feasts should be strengthened in summer and autumn,as well as foodborne disease prediction and forewarning to reduce the foodborne disease incidents caused by microorganism contamination and poisonous muchnooms.It is necessary to conduct public risk cognition research for foodborne disease in Zhejiang,which could provide evidence for preventing and controlling family foodborne disease.