1.Study on promotion of traditional knowledge digital library (TKDL) and the implications for traditional knowledge protection of traditional Chinese medicine
Jia SUN ; Changhua LIU ; Ge SONG
International Journal of Traditional Chinese Medicine 2017;39(2):97-100
Traditional knowledge digital Library (TKDL) is a mature database for protection of traditional knowledge from illicit aggression, and also used for searching and examining the novelty and inventive step of applied inventions. TKDL has the role of defensive protection on Indian traditional medicine through promoting legislation initiatively, signing TKDL access agreement with international intellectual property authorities, and establishing close cooperation with WIPO. TKDL is a typical and successful case. Based on the publication and promotion ways of traditional knowledge digital library and the actual national condition in China, this paper proposes several applicable ways for publication and promotion of traditional knowledge protection directory of traditional Chinese medicine database.
2.Ulinastatin attenuates paraquat-induced myocardial injury
Li LI ; Min DI ; Chao LAN ; Changhua SUN
Chinese Journal of Emergency Medicine 2012;21(11):1192-1197
Objective To investigate the effect of ulinastatin (UTI) on endogenous antioxidant systems in the process of myocardial oxidative stress injury induced by paraquat (PQ),so as to elucidate UTI protecting cadiocytes against PQ-induced injury.Methods Thirty Japan white rabbits were randomly (random number) divided into A,a sham control group; B,PQ intoxication model group and C,D,E,three UTI groups as per different dosages of UTI given.PQ (30 mg/kg) was administered by intraperitoneal route to the rabbits of PQ intoxication model and rabbits of three UTI groups.UTI in doses of 15 000,30 000,50 000 U/kg was administered intravenously every day to the rabbits of three UTI groups respectively for 7 days after PQ intoxication.After the rabbits were sacrificed with 10% chloral hydrate,left ventricles of rabbits were taken.Histomorphological changes of myocardium were observed by using HE staining.Hydroxyproline was measured by alkaline hydrolysis method,myocardial oxidative stress evaluated by 4-hydroxy-2-nonenal (4-HNE) immunohistochemistry staining,transcription levels of transforming growth factor-β1 (TGF-β1),adiponectin,peroxisome proliferator-activated receptor α (PPAR-α),AMP-activated protein kinase-β1 (AMPK-β1),uncoupling protein-1 (UCP-1) were assayed with reverse transcriptionpolymerase chain reaction (RT-PCR).The differences between two groups were analyzed by t test ; for multiple comparisons,data were analyzed by One-Way ANOVA followed by Dunnett' s post hoc test; for two and multiple ranked data comparisons,Mann-Whitney U test and Kruskal-Wallis test were used,and Spearman rank correlation analysis was used to investigate the correlation between UTI dose and transcription levels of endogenous antioxidant.Results Compared with group A,left ventricular cadiocytes in group B became swelled and disarranged,concentration of tissue HYP was elevated to (2.37 ± 0.49),P =0.001;scores of 4-HNE and TGF-β1 mRNA expressions were all upregulated (both P =0.001).Compared with group B,disordered myocytes in UTI treated groups tended towards normal,4-HNE scores in group D and group E descended respectively to (1.83 ± 0.53) and (1.70 ± 0.47),both P =0.001,HYP concentration reduced to (3.51 ±0.39) μg/mg and (3.29 ±0.37) μg/mg (P =0.002; P =0.001),and expressions of TGF-β1 mRNA in these two groups were decreased (both P =0.001).Transcription levels of four endogenuous antioxidant components,adiponectin,PPAR-α,AMPK-β1 and UCP-1,were all augmented in the group E with high dose UTI.The mRNA expressions of these four components positively correlated with the dose of UTI in the myocardium of PQ intoxicated rabbits.Conclusions UTI could protect myocardia against PQ-induced injury by increasing endogenous antioxidant systems.
3.Analysis of risk factors for prognoses of 176 patients with acute paraquat intoxication
Jinzhu WANG ; Chao LAN ; Li LI ; Changhua SUN
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2013;(4):240-243
Objective To explore the risk factors influencing the prognoses by analyzing clinical data of patients with acute paraquat intoxication,and provide a basis for clinical prevention and treatment of the disease. Methods The clinical data of 176 patients with acute paraquat intoxication admitted into our Hospital were retrospectively collected during the period from January 2012 to February 2013. After admission,the conventional medical treatment was given to all the patients,and according to the prognoses of 28 days after poisoning,the patients were divided into death group and survival group. The gender,age,toxic dose,time elapsed from poisoning to admission,time elapsed from poisoning to gastric lavage,number of cases treated with drug lavage,white blood cell count(WBC),alanine amino-transferase(ALT),aspartate amino-transferase(AST),blood urea nitrogen(BUN), serum creatinine(SCr),acute physiology and chronic health evaluation system Ⅱ(APACHE Ⅱ)score,carbon dioxide combining power(CO2CP),number and time of cases revealing arterial blood oxygen saturation(SaO2)<0.90, and the survival rate within 28 days after admission were recorded. Multivariate logistic regression was used to analyze the factors related to the prognosis. Results ①Of the 176 cases,96 survived and 80 died in 28 days,the survival rate being 54.55%.②Univariate analysis showed the poisoning dose(ml),time elapsed from poisoning to admission (minute), WBC(×109/L), ALT(U/L),AST(U/L),BUN(mmol/L),SCr(μmol/L),APACHEⅡ scores, CO2CP (mmol/L),number of cases with SaO2<0.90 in the survival group were significantly lower than those in the death group〔38.14±39.44 vs. 88.50±58.79,41.11±30.29 vs. 90.00±59.31,11.78±3.61 vs. 16.13±5.02,84.46±42.53 vs. 156.35±76.62,76.21±38.69 vs. 184.00±86.48,5.34±2.89 vs. 10.51±6.80,84.17±77.38 vs. 199.74±162.13, 0.96±1.60 vs. 3.60±2.61,22.02±4.47 vs. 18.35±4.19,4(4.17%)vs. 80(100.00%),respectively,all P<0.01〕;there were no statistically significant differences in time elapsed from poisoning to admission(hour),number of cases treated with drug lavage and time of revealing SaO2<0.90(day)between survival group and death group〔7.96±3.39 vs. 8.05±4.26, 20(20.83%)vs. 24(30.00%), 62.25±18.45 vs. 65.70±45.10,respectively,all P>0.05〕.③Multivariate logistic regression revealed poisoning doses>30 ml〔odds ratio(OR)=6.455,95% confidence interval(95%CI)3.177-13.113,P<0.001〕,time elapsed from poisoning to admission>30 minutes(OR=8.639, 95%CI 4.043-18.461, P<0.001), WBC>12×109/L (OR=2.745,95%CI 1.388-5.426, P=0.004),BUN>8 mmol/L(OR=6.713,95%CI 2.650-17.006,P<0.001)and CO2CP≤22 mmol/L(OR=4.737,95%CI 2.389-9.394, P<0.001) were the risk factors correlated with the prognosis of patients with acute paraquat intoxicationl. Conclusion Poisoning doses,time elapsed from poisoning to admission,BUN,CO2CP and WBC are the independent risk factors for predicting prognosis of acute paraquat intoxication.
4.Main technical points of quarantine inspection of Beagle dogs used for drug GLP experiment
Changhua SUN ; Yi LIU ; Ying XIAO ; Xia WEI ; Qingfen ZHU
Chinese Journal of Comparative Medicine 2017;27(6):63-67
The quarantine inspection and acceptance of laboratory animals is an important work, which can protect animals from pollution, occurrence and spread of diseases in the surounding area, and it is the key point to realize the quality standardization of laboratory animals.Beagle dogs are acknowledged widely as specialized laboratory dogs which is widely employed in experiments of drug safety evaluation because of the good genetic stability, environmental adaptability, disease resistance and consistency testing in the experiments.Establishment of standard operating procedures of beagle dog quarantine acceptance check for drug GLP organization tests, refining technical points, strengthen the technical training of quarantine officers, and efforts to improve the level of quarantine are needed to finally ensure the quality of laboratory animals.
5.Reducing the consumption of personal protective equipment by setting up a multifunctional sampling station in the emergency department to screen for COVID-19 infection in Taiwan.
Po-Ting LIN ; Ting-Yuan NI ; Tren-Yi CHEN ; Chih-Pei SU ; Hsiao-Fen SUN ; Mu-Kuan CHEN ; Chu-Chung CHOU ; Po-Yu WANG ; Yan-Ren LIN
Environmental Health and Preventive Medicine 2020;25(1):34-34
In Taiwan, high-risk patients have been identified and tested for preventing community spread of COVID-19. Most sample collection was performed in emergency departments (EDs). Traditional sample collection requires substantial personal protective equipment (PPE), healthcare professionals, sanitation workers, and isolation space. To solve this problem, we established a multifunctional sample collection station (MSCS) for COVID-19 testing in front of our ED. The station is composed of a thick and clear acrylic board (2 cm), which completely separates the patient and medical personnel. Three pairs of gloves (length, 45 cm) are attached and fixed on the outside wall of the MSCS. The gloves are used to conduct sampling of throat/nasal swabs, sputum, and blood from patients. The gap between the board and the building is only 0.2 cm (sealed with silicone sealant). ED personnel communicate with patients using a small two-way broadcast system. Medical waste is put in specific trashcans installed in the table outside the MSCS. With full physical protection, the personnel conducting the sampling procedure need to wear only their N95 mask and gloves. After we activated the station, our PPE, sampling time, and sanitization resources were considerably conserved during the 4-week observation period. The MSCS obviously saved time and PPE. It elevated the efficiency and capacity of the ED for handling potential community infections of COVID-19.
Betacoronavirus
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Clinical Laboratory Techniques
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Coronavirus Infections
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diagnosis
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epidemiology
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Emergency Service, Hospital
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organization & administration
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Humans
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Mass Screening
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methods
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Pandemics
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Personal Protective Equipment
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supply & distribution
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Pneumonia, Viral
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diagnosis
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epidemiology
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Taiwan
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epidemiology
6.Prognostic assesment of no-reflow after primary percutaneous coronary intervention in elderly patients with ST-elevation acute myocardial infarction
Changhua WANG ; Yundai CHEN ; Xinchun YANG ; Lefeng WANG ; Hongshi WANG ; Zhijun SUN ; Hongbin LIU ; Lian CHEN
Chinese Journal of Geriatrics 2011;30(9):705-709
Objective To identify independent predictors of no-reflow after primary percutaneous coronary intervention (PPCI)in aged patients with ST-elevation acute myocardial infarction (STEMI), and thus construct a no-reflow predicting model.MethodsTotal of 668 aged patients with STEMI and successfully treated with PPCI were divided into the no-reflow group and the normal flow group. All clinical, angiographic and procedural data were collected. Multiple logistic regression analysis was used to identify independent no-reflow predictors.ResultsThe no-reflow was found in 181 of 668 (27.1%) patients.Multiple stepwise logistic regression analysis identified that admission systolic blood pressure (SBP)<100 mm Hg, collateral circulation 0-1 grade, pre-PCI thrombus score ≥ 4, and intra-aortic balloon pump (IABP) use before PCI were independent noreflow predictors.The no-reflow incidence significantly enhanced as the numbers of independent predictors increased [10.0% (2/20), 13.7% (32/233), 30.8% (85/276), 38.1% (37/97), and 59.5% (25/42) in patients with 0, 1, 2, 3, and 4 independent predictors, respectively,x2 =25.796,P<0.01) ]. ConclusionsThe no-reflow predictors are admission SBP < 100 mm Hg, collateral circulation 0-1grade, pre-PCI thrombus score≥4, and IABP use before PCI in patients with STEMI and treated with PPCI. The prediction model may provide basis for therapeutic decision.
7.The factors studied for prediction of coronary no-reflow in patients with STEMI after emergency coronary intervention with primary drug-eluted stenting
Changhua WANG ; Yundai CHEN ; Xinchun YANG ; Lefeng WANG ; Hongshi WANG ; Zhijun SUN ; Hongbin LIU ; Lian CHEN
Chinese Journal of Emergency Medicine 2011;20(11):1170-1173
Objective To assess independent no-reflow predictors in patients with STEMI after primary drug-eluted stenting.Method A prospective study was carried out in 1413 patients with STEMI treated with primary drug-eluted stenting within 12 hours after onset of AMI from January 2007 through March 2010.The patients were divided into the no-reflow group and the normal reflow group.Univariate and multivariate logistic regression were applied to identification of no-reflow predictors.Results The no-reflow was found in 297(21.0%)of 1413 patients.Univariate and multivariate logistic regression identified that age >65 years,long time from onset to reperfusion >6 hours,admission plasma glucose(APG)> 13.0mmol/L,collateral circulation ≤ 1,pre-percutaneous coronary intervention(PCI)thrombus score ≥ 4,and intra-aortic balloon pump(IABP)used before PCI(P <0.05)were independent no-reflow predictors.The no-reflow rate significantly increased as the number of predictors increased(P < 0.01).Conclusions There are 6 factors associated with coronary no-reflow used for prediction in patients with STEMI after primary drug-eluted stenting.
8.The effect of admission hyperglycemia on coronary reflow in primary percutaneous coronary intervention
Changhua WANG ; Yundai CHEN ; Xinchun YANG ; Lefeng WANG ; Hongshi WANG ; Zhijun SUN ; Hongbin LIU ; Lian CHEN
Chinese Journal of Internal Medicine 2011;50(4):303-306
Objective To assess the association between admission plasma glucose (APG) and noreflow during primary percutaneous coronary intervention (PCI) in patients with ST-elevation acute myocardial infarction (STEMI). Methods A total of 1413 patients with STEMI successfully treated with PCI were divided into no-reflow group and normal reflow group. Results The no-reflow was found in 297 patients (21.0%) of 1413 patients; their APG level was significantly higher than that of the normal reflow group [( 13.80 ±7.47) vs (9.67 ±5.79) mmol/L, P<0.0001]. Multivariate logistic regression analysis revealed that current smoking ( OR 1.146, 95% CI 1.026-1. 839,P = 0.031), hyperlipidemia ( OR 1. 082,95% CI 1. 007-1. 162, P = 0. 032), long reperfusion ( > 6 h, OR 1. 271, 95% CI 1. 158-1. 403, P =0. 001 ) , admission creatinine clearance ( < 90 ml/min, OR 1.046, 95% CI 1. 007-1.086, P = 0.020 ) ,IABP use before PCI (OR 9.346, 95%CI 1.314-67. 199, P=0.026), and APG ( > 13.0 mmol/L, OR1.269, 95% CI 1.156-1.402, P = 0.027) were the independent no-reflow predictors. The no-reflow incidence was increased as APG increased ( 14. 6% in patients with APG < 7. 8 mmol/L and 36. 7% in patients with APG > 13.0 mmol/L, P = 0.009 ). Conclusion APG > 13.0 mmol/L is an independent noreflow predictor in patients with STEMI and PPCI.
9.Effects of combined application of thrombolytic therapy and aspiration thrombectomy on no-reflow phenomenon in patients with ST-segment elevation acute myocardial infarction after primary percutaneous coronary intervention
Changfu LIU ; Changhua WANG ; Yundai CHEN ; Zhijun SUN ; Hongbin LIU ; Lian CHEN
Medical Journal of Chinese People's Liberation Army 1981;0(06):-
Objective To assess the effects of combined application of thrombolytic therapy and aspiration thrombectomy on no-reflow phenomenon in patients with ST-segment elevation acute myocardial infarction (AMI) after primary percutaneous coronary intervention (PCI). Methods Five hundred and thirty four patients with ST-segment elevation AMI,admitted from 2007 to 2010 and successfully treated with primary angioplasty within 24 hours after the onset of AMI,were divided into 4 groups:A group (without thrombolytic therapy combined with aspiration thrombectomy treatment),B group (only thrombolytic therapy),C group (only aspiration thrombectomy) and D group (treated with thrombolytic therapy and aspiration thrombectomy). All clinical,angiographic and procedural data were collected. Multiple logistic regression analysis was used to identify the related predictors of the no-reflow phenomenon. Results The no-reflow phenomenon was found in 138 (25.8%) of 534 patients. The incidence of no-reflow phenomenon in A,B,C,and D group was 32.7% (85/260),20.8% (20/96),21.7% (31/143) and 5.7% (2/35) (P=0.009),respectively. Conclusion Combined application of thrombolytic therapy and aspiration thrombectomy may significantly decrease the incidence of no-reflow phenomenon in patients with ST-segment elevation AMI and treated with primary PCI.
10.Determination of 11 Phthalic Acid Esters in Soil by Accelerated Solvent Extraction-Liquid Chromatography Tandem Mass Spectrometry
Rui YAN ; Mingyuan SHAO ; Changhua SUN ; Xiaoling LIU ; Daqian SONG ; Hanqi ZHANG ; Aimin YU
Chinese Journal of Analytical Chemistry 2014;(6):897-903
A sensitive and convenient method based on accelerated solvent extraction ( ASE )-liquid chromatography tandem mass spectrometry (LC-MS / MS) was established for the simultaneous determination of 11 phthalic acid esters(PAEs) in soil. The optimized conditions were as follows: By using n-hexane as the extraction solvent, spiked sample was extracted by ASE at 160 ℃ for 4 times, 12 min for each time. The extract was concentrated by evaporation. Qualitative and quantitative analysis was carried out by the multiple reaction monitoring mode after the chromatographic separation with atmospheric pressure chemical ionization (APCI), using acetonitrile -0. 1% formic acid water as mobile phase. The limits of detection(LODs) for 11 PAEs were between 0. 03 - 13. 0 μg / kg. The recoveries and relative standard deviations were 72. 8% -101. 8% and 1. 7-6. 7% , respectively. This method is rapid, sensitive and suitable for the determination of PAEs in soil.