1.Problems and Countermeasures of Non-medical Safety Management in the Hospital in China
Chinese Hospital Management 2017;37(9):67-69
Medical safety management and non-medical safety management are two major systems of hospital safety management.With the deepening of the medical and health system reform and the change of the mode of medical treatment,the connotation and extension of non medical safety management have changed,and the non-medical safety management field is faced with more risk factors and security risks.Combined with the.status quo of non medical safety management in hospital,the problems existing in non-medical safety management are analyzed and some suggestions for improvement are put forward.
2.Mast cells and cardiovascular disease.
Chinese Journal of Pediatrics 2010;48(10):794-797
3.MeaSurement of Relative Affinity and Specificity of Monoclonal Antibodies
Chun-Hai HAO ; Yuan-Yao CHEN ;
Chinese Journal of Immunology 1985;0(05):-
To measure the relative affinity and type Specificity of neutralizing monoclonal antibodies against the hexon antigen of adenovirus type 7,a simple ELISA double antibody binding system has been developed.By this method,ralative affinity of nine MAbs was estimated from the antibody concentrations at approximately 50% of plateau binding and were ranked.The theoretical basis for this method was discussed. Hybridomas secreting antibodies of desired affinity can be selected at an early stage after fussion by measuring relative affinity of hybridomas supernatants.The type specificity was judged by the difference between end-point concentration against adeno- virus type 7 and type 3.And the relation between affinity and specificity of MAbs was discussed.
4.Disseminated histoplasmosis in a boy presenting fever and jaundice as first manifestations.
Liang CHENG ; Chun-Yuan CHEN ; Yong-Hong GU
Chinese Journal of Contemporary Pediatrics 2010;12(11):927-928
Child, Preschool
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Fever
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etiology
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Histoplasmosis
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complications
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diagnosis
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pathology
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Humans
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Jaundice
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etiology
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Male
5.Comparison of Sevoflurane and Propofol on Cerebral Oxygen Metabolism and Postoperative Cognitive Function During Cardiopulmonary Bypass
Huaping YUAN ; Yanjun LIU ; Chun CHEN ; Jun HOU
Herald of Medicine 2016;35(4):349-352
Objective To observe the effects of sevoflurane and propofol on cerebral oxygen metabolism and postoperative cognitive function during cardiopulmonary bypass (CPB). Methods Fifty ASA Ⅱ or Ⅲ patients aged 40-65 years old scheduled for cardiac valve replacement surgery with CPB were randomly assigned into two groups,sevoflurane group (group S) and propofol group (group P),25 in each group.Two groups of patients used the same method of anesthesia induction:midazolam 0.1 mg?kg-1,sufentanil 0.7 μg?kg-1,vecuronium 0.1 mg?kg-1,and etomidate 0.2 mg?kg-1 were intravenously injected successively,and then tracheal intubation was performed.For maintenance of anesthesia,patients of group S continuously inhaled 3%-4% sevoflurane, and patients of group P were intravenous pumped with propofol 4-6 mg?kg-1?h-1 via vein;midazolam,sufentanil and vecuronium bromide were intermittently injected in both groups.At the time points of pre-bypass (t1), nasopharynx temperature dropping to constant temperature regularly ( t2 ) ,nasopharynx temperature rising to constant temperature regularly ( t3 ) ,1 h after the end of CPB ( t4 ) ,and 6 h after the end of CPB ( t5 ) ,blood from radial artery and right jugular bulb was harvested for blood gas analysis,and mini-mental state examination( MMSE) score were evaluated before and 24 and 48 h after the surgery. Results The jugular venous bulb oxygen saturation( SjvO2 ) in the two groups were both increased during T2 period and then decreased during t3 period, but arteriovenous oxygen content difference ( AVDO2 ) and oxygen extraction rate (O2ER) were both decreased during t2 period and then increased during t3 period.There was no significant difference between the two groups during t2 and t3 period (P>0.05).MMSE scores of the two groups after operation were all less than those before operation,but that was significantly higher in the sevoflurane group than in the propofol group 24 h after the surgery ( t=4.34,P<0.05) . Conclusion The two anesthesia methods can meet the need of valve replacement surgery and maintain the cerebral oxygen balance during CPB period, but sevoflurane anesthesia has fewer influences in post-operation mental nerve functional changes.
7.Analysis of genetic characteristics of ECHO6 virus isolated from an epidemic outbreak of encephalitis in Longyan, China.
Chun-Yuan CAO ; Qian-Jin CHEN ; Chun-Rong HE ; Zhao-Fu LUO ; Yun HE ; Yi-Hong LIAO ; Shui-Xin WU
Chinese Journal of Virology 2014;30(4):412-416
This study aimed to analyze the etiology of the encephalitis outbreak in Longyan, Fujian Province, China in 2010, in order to provide valuable information for this prevention and control of this disease. Pathogens were confirmed from cerebrospinal fluid samples with fluorescent RT-PCR, virus isolation (RD cells), and neutralization tests. Then, the VP1 fragments or whole genome nucleotide sequences were determined for four virus strains using PCR. Homology was assessed using the MegAlign software, and a phylogenetic evolutionary tree was drawn using Mega 4.0 software. The results confirmed that the etiology of the outbreak was the ECHO6 intestinal virus, and the nucleotide sequence of the VP1 segment indicated that the C2 subtype was responsible. The genome sequence consisted of 7407 nucleotides, and resembled the genome of other ECHO and CoxB viruses with homology levels of 78.5%-87.3%. The encephalitis outbreak in Longyan in 2010 was caused by the ECHO6 C2 subtype intestinal virus, and its complete genome sequence length is similar to the standard strain (U16283) with a sequence homology of 80.4%.
Child, Preschool
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China
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epidemiology
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Disease Outbreaks
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Echovirus 6, Human
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classification
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genetics
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isolation & purification
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Echovirus Infections
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epidemiology
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virology
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Encephalitis
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epidemiology
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virology
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Female
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Humans
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Infant
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Male
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Molecular Sequence Data
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Phylogeny
8.Determination of oleanic acid and paeoniflorin in Paeonia lactiflora by ultrasound-assisted ionic liquid-reversed phase liquid chromatography.
Wei LIU ; Dong-dong LI ; Hong-shuai YANG ; Yuan-yuan CHEN ; Jin-feng WEI ; Wen-yi KANG ; Xiu-chun GUO
China Journal of Chinese Materia Medica 2015;40(3):443-449
Four kinds of ionic liquids [BMIM] Br, [BMIM] BF4, [BMIM] PF6, [HMIM] PF6 were used to analyze the content of oleanic acid and paeoniflorin in Paeonia lactiflora with ultrasonic-assisted extraction coupled with HPLC. The chromatographic column, Purospher star RP-C18 (4.6 mm x 250 mm, 5 μm), was used. Acetonitrile and water (90:10) as mobile phase was used to determine the content of oleanic acid with a gradient elution and flow rate at 1.00 mL · min(-1), detection wavelength at 210 nm, chromatographic column temperature at room temperature. Paeoniflorin content was determined using acetonitrile and water (18:82) as mobile phase with a gradient elution and flow rate at 1.00 mL · min(-1), detection wavelength at 250 nm, the chromatographic column temperature at room temperature. The result show that oleanic acid has the highest extraction yield when the conditions are solid-liquid ratio of 1:80 (g · mL(-1)), and the [BMIM] Br methanol solution concentration of 0.6 mol · L(-1). Under the optimal extraction conditions, the content of oleanic acid from 0.24 to 3.76 μg showed a good linearity (r = 0.9999), the average recovery was 97.20%. Paeoniflorin has the highest extraction yield when the conditions are solid-liquid ratio of 1:130 (g · mL(-1)), and the [C4 MIM] PF6 methanol solution concentration of 0.6 mol · L(-1). Under the optimal extraction conditions, paeoniflorin content from 0.42 to 4.20 μg showed a good lin- earity (r = 1.000), the average recovery was 98.84%. This method is simple and reliable, its repeatability is also very good. It has important significance in the study P. lactiflora of ionic liquid microextraction.
Chromatography, Reverse-Phase
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methods
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Glucosides
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analysis
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Ionic Liquids
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chemistry
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Monoterpenes
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analysis
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Oleanolic Acid
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analysis
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Paeonia
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chemistry
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Ultrasonics
9.Molecular identification of Cynomorii herba using ITS2 DNA barcoding.
Dian-Yun HOU ; Jing-Yuan SONG ; Lin-Chun SHI ; Pei YANG ; Shi-Lin CHEN ; Hui YAO
China Journal of Chinese Materia Medica 2013;38(23):4028-4032
OBJECTIVETo identify the Cynomorii Herba and its analogues species using DNA barcoding technique.
METHODTotal genomic DNA extracted from all materials using the DNA extraction kit. The internal transcribed spacer 2 (ITS2) regions were amplified using polymerase chain reaction (PCR), and purified PCR products were sequenced bi-directionally. Sequence assembly and consensus sequence generation were performed using the CodonCode Aligner 3.7.1. The Kimura 2-Parameter (K2P) distances and GC content were computed using MEGA 5. 0. Species identification analyses were conducted through the species identification system for traditional Chinese medicine and neighbor-joining (NJ) trees.
RESULTThe ITS2 sequence lengths of Cynomorii Herba were 229 bp. The average intra-specific genetic distances of Cynomorii Herba were 0.003. The average inter-specific genetic distances between Cynomorii Herba and its adulterants species were 0.760. The results showed that the minimum inter-specific divergence is larger than the maximum intra-specific divergence. The species identification system for traditional Chinese medicine and NJ trees results indicated that Cynomorii Herba and its adulterants species can be easily identification.
CONCLUSIONThe ITS2 region is an efficient barcode for identification of Cynomorii Herba, which provide a new technique to ensure clinical safety in utilization of traditional Chinese medicine.
Cynomorium ; classification ; genetics ; DNA Barcoding, Taxonomic ; DNA, Intergenic ; genetics ; DNA, Plant ; genetics ; Polymerase Chain Reaction
10.Analysis of surveillance results of drinking-water supply status in drinking-water-borne endemic fluorosis areas in Henan
Bo, YU ; Li, ZHANG ; Guo-qiang, HOU ; Yang, LIU ; Chun-sheng, YUAN ; Gan, CHEN
Chinese Journal of Endemiology 2013;(2):186-188
Objective To understand the status of drinking-water supply and the progress of waterimproving projects in drinking-water-borne endemic fluorosis areas in Henan,and to provide scientific data for related government departments to carry out prevention and surveillance plan for those areas.Methods Questionnaire survey was carried out in all the villages in drinking-water-borne endemic fluorosis areas in Henan in 2010.Each village was given one set of questionnaire.Results By the end of 2010,the total number of fluorosis villages in Henan was 25 434,among them 11 484 villages had been conducted water-improving projects,accounting for 45.15%.Currently,9267 water-improving projects worked properly,accounting for 36.4%(9267/25 434)of all villages surveyed,and 80.7% (9267/11 484)villages had water-improving projects.The projects in 2217 villages do not work properly,accounting for 19.3%(2217/11 484) of all projects.There were 5832 water-imp.roving projects conducted amnog 2005-2010,accounting for 50.8% (5832/11 484) of all water-improving projects.Among villages with no such projects,97.5%(15 769/16 167) of them used shallow groundwater,and in villages with water-improving projects,89.6% (8303/9267) of them used deep groundwater as drinking-water supply.Conclusions After 2005,the water improving progress was significantly speed up in drinking-water-borne endemic fluorosis areas in Henan,but progress of the water improving projects is relatively slow due to changing and expanding of fluorosis areas.The government should increase investment and improve the proportion of waterimproving defluoridation.