1.Role of serum ?/? ratio detection in multiple myeloma diagnosis
International Journal of Laboratory Medicine 2006;0(02):-
Objective To explore the clinical value of the immune rate nephelometry (IRN)in detecting the rate of serum ? and ?,and diagnosing multiple myeloma.Methods Twenty-five cases of multiple myeloma (MM),28 cases of M protein sickness and 120 cases of healthy people were detected for the rate of serum ?/? by the Immage Protein Machine the results were analyzed.Results 0.8% of healthy people was positive, the positive rate of ? and ? type M protein sickness were 23.1% and 26.7% respectively, the positive rate of ? and ? type multiple myeloma was 92.3% and 100% respectively. Conclusion The method of IRN has high sensitivity and stability in detecting the light chain of serum ? and ? on/with the Immage Protein Machine.The accuracy value of prognosing MM with the rate of serum ? and ? is better.
2.Clinical nursing significance of electrocardiographic monitor in primary interventional therapy of acute myocardial infarction
Yuehong QIU ; Ying ZHAI ; Yuan TAN
Chinese Journal of Interventional Cardiology 1996;0(01):-
Objective To study the clinical nursing significance of ECG monitor in primary PCI for AMI patients and the relation of changes in ECG and the reperfusion of infarction related artery.Methods Regressional analysis was made in ECG changes including different types of arrthymia,degree of ST segment regression,and their relation between the reperfusion of infarction related artery before and after interventional therapy in AMI patients.Results In 468 AMI patients,142 patients had ventricular arrhythmia before therapy.After interrentional therapy,285 patients were co-morbid with accelerated ventricular tachycardia,203 patients with transient ventricular tachycardia or R-on-T phenomenon,62 patients with ventricular fibrillation and received asynchronous electriacal cardioversion.Twenty four patients had new onsent of Ⅱ-Ⅲ degree atrio-ventricular block and 45 patients had bradycardia or sinus arrest.The atrio-ventricular blook in 10 patients before PCI disappeared after the operation.There are 301 patients with apparent ST segment regression(ST segment regressed ≥50%,57 patients with partial ST segment regression,and 29 patients without ST segment changes.Conclusion Arrhythmias always accompanied with IRA reperfusion.Careful monitoring of ECG is essential for patients' safety after AMI.Obvious ST segment is observed in sufficient IRA reperfusion.However,poor regression of ST segment as well as haemodynamics disorder and cardiogenic shock is observed in patients with poor reperfusion or subacute occlusion of IRA.
3.Analysis on evaluation tool for literature quality in clinical study.
Qing LIU ; Wei ZHAI ; Ya-qin TAN ; Juan HUANG
Chinese Acupuncture & Moxibustion 2014;34(9):919-922
The tools used for the literature quality evaluation are introduced. The common evaluation tools that are publicly and extensively used for the evaluation of clinical trial literature quality in the world are analyzed, including Jadad scale, Consolidated Standards of Reporting Trials (CONSORT) statement and Grades of Recommendations Assessment, Development and Evaluation (GRADE) system and the others. Additionally, the present development, updates and applications of these tools are involved in analysis.
Biomedical Research
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standards
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Evaluation Studies as Topic
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Humans
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Publications
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standards
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Quality Control
4.Effects of Guttiferone K on Inducing G0/1 Arrest of Prostate Cancer LNCaP Cells
Wei ZHAI ; Jiling FENG ; Zhichao XI ; Hongsheng TAN
World Science and Technology-Modernization of Traditional Chinese Medicine 2017;19(2):235-240
This study aimed at investigating the effects of Guttiferone K (GUTK),a polycyclic polyprenylated acylphloroglucinols (PPAPs) compound isolated from Garcinia yunnanensis,on the cell proliferation of human prostate cancer LNCaP cell line.Human prostate cancer LNCaP cells in the period of logarithmic phase were treated with GUTK.MTI assay was used to detect cell proliferation.Flow cytometry of propidium iodide (PI) staining,BrdU assay and immunocytochemistry were adopted to analyze the cell cycle phase distribution.Protein levels of Cyclin A,p27 and SKP2 were detected by western blotting.The results showed that GUTK inhibited the proliferation and induced G0/1 arrest of LNCaP cells in a time and dose dependent manner.The protein levels of Cyclin A and SKP2 were decreased,while p27 was increased by GUTK in human prostate cancer LNCaP cells.It was concluded that GUTK,a compound isolated from G.yunnanensis,presented the effect of inhibiting the cell proliferation by inducing G0/1 arrest of human prostate cancer LNCaP cells,with potential anti-prostate cancer action.
5.Evaluation of Endoproteinase Lys-C/Trypsin Sequential Digestion Used in Proteomics Sample Preparation
Qian LI ; Yu FENG ; Minjia TAN ; Linhui ZHAI
Chinese Journal of Analytical Chemistry 2017;45(3):316-321
Endoproteinase Lys-C/trypsin sequential digestion and trypsin digestion were used in 293 T cell proteomics sample preparation and the results of Lys-C/trypsin sequential digestion and trypsin digestion in proteomics sample preparation was systematically evaluated. It was found that the number of identified peptides and proteins increased significantly, and missed cleavage sites, especially K sites decreased dramatically through Lys-C/trypsin sequential digestion. And the average sequence coverage of identified proteins in Lys-C/trypsin sequential digestion sample was higher than that in trypsin digestion sample. Besides, different amount of enzymes was tested to select the optimal usage of enzymes in Lys-C/trypsin sequential digestion. This study provided the references for proteomics sample preparation.
6.EFFECTS OF SOME SALT-TOLERANT FUNGI IN DISSOLBING PHOSPHATE ROCK UNDER DIFFERENT SALT AND ALKALINE
Chang-Xia LIU ; Tian-Wei TAN ; Hong-Jie ZHAI ;
Microbiology 1992;0(05):-
Four specific salt-tolerant fungi for dissolving phosphate rock (FM) w ere isolated from the coastal saline soils. It was found that the biomass and a b ility to release phosphate from the materials decreased with increasing of the N aCl content. During pH7.0~8.5, the biomass and ability of to release phospho rus from the materials of FM1 decreased sharply with pH rising, but the FM2 and FM4 decreased not considerably, optimal pH for FM3 was at pH8.5. At pH9.0, the bi oma ss and ability of to release phosphorus from the materials decreased quickly. F M2 was stable at alkaline and high salt content condition.
7.Efficacy evaluation of healthy canteen based-nutritional health promotion
Lifeng TAN ; Xiling SUN ; Qiangqiang XU ; Qining ZHANG ; Yundi ZHANG ; Ling TONG ; Chengkai ZHAI
Chinese Journal of Health Management 2014;8(3):184-188
Objective To evaluate efficacy of healthy canteen based-nutritional health promotion so as to provide evidence for popularization and application.Methods A total of 429 college professors and administrative staffs with a healthy canteen were selected as the intervention group in 2012 in Changzhou,and another 947 counterparts without a healthy canteen were selected as the control group.Those of the intervention group was further assigned to the ≥2 times/week and<2 times/week subgroups.Blood pressure,fatty liver,serum triglycerides,blood glucose,total cholesterol,uric acid,low-density lipoprotein cholesterol,high-density lipoprotein cholesterol and body mass index(BMI)were tested before and after the intervention.Results After the intervention,the mean serum glucose[(5.06±0.62)mmol/L],uric acid[(310.57 ± 71.79)μmol/L],total cholesterol[(4.88 ± 0.86)mmol/L],triglycerides[(1.39 ± 0.67)mmol/L]and low-density lipoprotein cholesterol[(2.51 ±0.62)mmol/L]of the intervention group were significantly decreased(t values were 7.513,2.126,2.062,3.731 and 8.891,respectively; all P<0.05),and mean high-density lipoprotein cholesterol[(1.43±0.34)mmol/L]were significantly increased(t=-2.309,P<0.05).After the intervention,mean serum glucose and uric acid of the control group were significantly increased(t values were-3.491 and-7.703,respectively; both P<0.05),although there was no statistically significant difference of mean serum triglycerides,total cholesterol,low-density lipoprotein cholesterol and high-density lipoprotein cholesterol in the control group before and after the intervention(all P>0.05).The abnormality rates of serum glucose,uric acid,total cholesterol,triglycerides,low-density lipoprotein cholesterol and BMI as well as the incidence of hypertension of the intervention group were significantly decreased after the intervention(x2 values were 4.202,3.940,4.031,7.305,59.422,4.273 and 7.385,respectively; P<0.05).In the control group,although the abnormality rate of serum uric acid and the incidence of fatty liver were significantly inclined after the intervention(x2 values were 23.740 and 7.408,respectively; both P<0.05),there were no significant difference of abnormal serum triglycerides,glucose,total cholesterol,low-density lipoprotein cholesterol and BMI as well as the incidence of hypertension before and after the intervention(all P>0.05).Mean serum triglycerides[(1.15 ±0.68)mmol/L]and low-density lipoprotein cholesterol[(2.4 1±0.60)mmol/L]in the ≥2 times/ week subgroup were significantly lower than those of the<2 times/week subgroup(t values were-4.884 and-2.513,respectively; both P<0.05),and mean high-density lipoprotein cholesterol[(1.46±0.33)mmo]/L]of the ≥2 times/week subgroup was significantly higher than that of the<2 times/week subgroup(t=2.032,P<0.05).The abnormality rates of serum total cholesterol,triglyceride and low-density lipoprotein cholesterol in the ≥ 2 times/week subgroup were significantly lower than those in the<2 times/week subgroup(x2 values were 3.963,9.947 and 4.589,respectively; all P<0.05).Conclusion Healthy canteen based-nutritional health promotion model may provide an effective method to prevent and control the development of noncommunicable chronic diseases.
8.Rapid Screening and Confirmation of Perfluorinated Compounds and Their Precursors in Fish Muscle by Solid Phase Extraction Purification and Liquid Chromatography Coupled with Quadrupole/Exactive Orbitrap Mass Spectrometry
Mengmeng GUO ; Juao GUO ; Hauyan WU ; Zhujun TAN ; Yuxuu ZHAI ; Zhu WANG ; Zhaoxun LI ; Fenglung LI
Chinese Journal of Analytical Chemistry 2016;44(10):1504-1513
A method was developed for the rapud screenung and confurmatuon of 18 perfluorunated compounds ( PFCs) and 21 precursors un fush muscle by solud phase extractuon and luquud chromatography coupled wuth quadrupole/exactuve orbutrap mass spectrometry (LC-Q Exactuve Orbutrap MS). In thus method, the sample was furstly extracted wuth acetonutrule-water (90∶10, V/V), cleaned-up by solud-phase extractuon usung Oasus PRuME HLB column. Then, 39 target compounds were separated on a BEH C18(2. 1 mm×100 mm, 1. 7 μm) column, and the background unterference caused by LC system was elumunated by a short C18 HPLC column located between the muxer and the auto sampler. In the process of quantufucatuon and qualufucatuon, a full MS/dd-MS2 experument was adopted un mass spectrometry acquusutuon, accompanued wuth the full scan MS date for quantufucatuon, as well as the date dependent MS2 product uon spectra for qualufucatuon. The mass accuracy error was less than 3×10-6, and the calubratuon curves were lunear well wuth correlatuon coeffucuent over 0. 99. The lumuts of detectuon ranged from 0. 02 to 0. 50 μg/kg. The average spuked recoverues for 39 target compounds were between 61 . 7% and 122 . 0%, wuth relatuve standard deruvatuons ( RSDs ) from 6 . 9% to 18 . 8%. The developed method was successfully applued to the sumultaneous determunatuon of 18 PFCs and 21 precursors un fush muscle wuth satusfactory results.
9.Literature Study on the Use Situation of Acupuncture-moxibustion Operation Standardization
Xinting MA ; Wei ZHAI ; Yaqin TAN ; Guilan LI ; Zelin CHEN ; Qiulan REN ; Juan WANG ; Fanliang KONG ; Yi GUO
Shanghai Journal of Acupuncture and Moxibustion 2016;35(6):751-753
Twenty-two items of national criteria of acupuncture-moxibustion operation standardization have been issued by the People’s Republic of China. To understand the situation of use of these criteria, the authors analyzed and studied the situation of application of acupuncture-moxibustion criteria in related papers, textbooks and monographs to provide a basis for further establishing and revising the criteria. The results show that people are building awareness of use of acupuncture-moxibustion criteria, and the criteria have gradually been used in more and more papers, textbooks and works.
10.The study of the biodegradable biliary duct stent in vivo.
Chao FAN ; Chao ZHAI ; Yi LU ; Haitao ZHU ; Min TAN ; Liang YU
Journal of Biomedical Engineering 2011;28(4):763-767
The present paper is aimed to evaluate safety and efficiency of a biodegradable biliary stent used in the Roux-en-Y cholangiojejunostomy of dogs in vivo. We separated 18 hybrid dogs into control group and experimental group randomly, with each group 9 dogs. The Roux-en-Y cholangiojejunostomy was carried out in the two groups. We placed the biodegradable stents into the anastomotic stoma of the dogs in the experimental group during the operation. After 3 months' close observation, we evaluated the degradable property and biocompatibility of the stents. We found that the morbidity rate of bile leakage in the dogs in the control group was much higher than that in the experimental group (P > 0.05). The X-ray photograph showed that the figures of the stents were complete and the stents were fixed at right place throughout the experimental period. The diameter of the dogs' common bile ducts of control group narrowed down obviously compared to those in the experimental group (P < 0.05). There were no impure materials adhered to the inside walls of the stents. The pathological test showed that there were no inflammation signs in mucous membrane and abnormal epithelium hyperplasia of the bile tract and jejunum. It can be concluded that the biliary duct stent, which was made with a mixture of poly-L-lactic acid (PLLA) and poly lactide-co-glycolide (PLGA), possesses qualities of relatively long degradable period (> 3 months) and good biocompatibility. Moreover, using the stent can effectively prevent bile leakage and anastomotic stom stenosis in the cholangio-intestinal anastomosis from happening.
Absorbable Implants
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Anastomosis, Roux-en-Y
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Animals
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Cholestasis
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pathology
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surgery
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Common Bile Duct
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surgery
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Dogs
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Female
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Jejunostomy
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methods
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Lactic Acid
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chemistry
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Male
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Polyesters
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Polyglycolic Acid
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chemistry
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Polymers
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chemistry
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Random Allocation
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Stents