1.Determination of Quinolones in Spicy Soup Using Packed Fiber Solid Phase Extraction and High Performance Liquid Chromatography-Fluorimetric Detection
Siwei DENG ; Jianjun DENG ; Tingting WANG ; Yu WANG ; Xuejun KANG
Chinese Journal of Analytical Chemistry 2014;(8):1172-1177
An analytical method for simultaneous determination of five quinolones in spicy soup was developed. Spicy soup samples were firstly extracted by EDTA-Mcllvaine buffer at pH 4, then purified and concentrated by a novel Packed fiber solid phase extraction ( PFSPE ) coulumn. The extracted liquid supernatant was loaded onto the column, rinsed with water, and then eluted with 2% ammoniated methanol. The mobile phase was methanol-water-phosphoric acid (25:75:0. 1, V/V, adjusting the pH to 2. 8 with triethylamine) . These analytes were quantified by high performance liquid chromatography-fluorimetric detector( HPLC-FLD) at excitation and emission wavelength of 280 nm and 450 nm respectively. Recoveries of spiked quinolone antibiotics in spicy soup were from 72 . 1% to 110 . 3% with intraday relative standard deviation (RSD) between 1. 6% and 4. 3% and inter-day RSD from 2. 0% to 4. 3%. Limit of detection (LOD) and limit of quantitation(LOQ) were from 1. 2 to 5. 4 μg/L and from 3. 9 to 18 μg/L, respectively. The method could be applied to determine the quinolones in spicy soup.
2.Analysis of proteomic components of sera from patients with uremia by two dimensional electrophoresis and matrix assisted laser desorption/ ionization time of flight mass spectrometry.
Jianqing, WANG ; Yong, DAI ; Anguo, DENG ; Jianjun, LIU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2005;25(5):604-7
The different sera proteomic components between uremia patients and normal subjects were studied through two-dimensional gel electrophoresis technique. Immobilized pH gradient two-dimensional polyacrylamide gel electrophoresis (2DE), silver staining, ImageMaster 2D 5.0 analysis software, matrix assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF-TOF-MS) and IPI human database searching were used to separate and identify the proteome of the sera from the patients with uremia. The results showed that satisfactory 2DE patterns of the serum proteins were obtained. Twenty-six protein spots showed significant difference in quantity in uremia patients, and 20 protein spots were identified by MALDI-TOF-TOF-MS. It was concluded that good reproducibility could be obtained by applying immobilized pH gradient 2DE to separate and identify the proteome in serum, which provided the foundation for the further study on uremia toxins pertaining to protein.
Blood Protein Electrophoresis
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Blood Proteins/*analysis
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Case-Control Studies
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*Electrophoresis, Gel, Two-Dimensional/methods
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Proteome/*analysis
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Proteome/chemistry
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Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/*methods
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Uremia/*blood
3.Effect of recombinant adenoviruses with CD/TK fusion suicide gene on human hepatocellular carcinoma cells
Changjun WANG ; Jianjun LI ; Xiaomin WEN ; Li DENG
Journal of Integrative Medicine 2004;2(1):42-5
OBJECTIVE: To investigate gene-therapy for human hepatocellular carcinoma with adenovirus vectors by double suicide gene CD/TK. METHODS: Double suicide gene CD/TK was liberated from eukaryotic vectors pCEA-CD/TK and subcloned into shuttle vectors, and the transfer plasmid pAdtrack-CMV-CD/TK was formed after linearizing with Pac 1. It was recombinated with pAdeasy-1 in bacteria BJ5183. The identified adenovirus plasmid was digested by Pac1 and was transfected into 293 cells to pack the adenoviruses. After PCR determination, its titre was measured, and the infection rate and efficacy were tested in human hepatocellular carcinoma cells. RESULTS: pAdtrack-CMV-CD/TK and pAd-CD/TK were tested by endonuclease digestion. Ad-CD/TK was produced in 293 cells, and the human hepatocellular carcinoma cells (SMMC7721) infected by Ad-CD/TK were killed after 5-FC was used, and bystander effects were observed. CONCLUSION: Recombinant adenoviruses with CD/TK fusion suicide gene have a high infection rate and efficacy for human hepatocellular carcinoma cells.
4.Reform on teaching mode of battlefield first aid based on the traits of the medics
Yuexian DENG ; Wenbao LIU ; Lei JIANG ; Jianjun ZHAO ; Chao QIN
Chinese Journal of Medical Education Research 2013;(6):600-602
Medics play a very important role in military medical supporting forces who take on lots of basic work of medical units.It was assigned to us to train the medics for the first time this year in our university.To enhance the teaching effect of the course named first aid in battlefield,a series of measures were taken including modularizing the teaching contents,diversifying the teaching means,dividing students into some groups,strengthening the practice and examinations based on the traits of the medics and so on.At last,some countermeasures were put forward aiming at the process of teaching.
5.Establishment of two-dimensional gel electrophoresis technical platform for the blood serum proteome research in patients with end stage renal disease
Jianqing WANG ; Yong DAI ; Anguo DENG ; Jianjun LIU
Journal of Chinese Physician 2001;0(01):-
Objective To establish and optimize the two-dimensional gel electrophoresis technical platform for the blood serum proteome research in patients with end stage renal disease(ESRD).Methods Immobiline pH gradients isoelectric focusing was used as the first dimensional gel electrophoresis and the vertical SDS-PAGE was used as the second dimensional gel electrophoresis(2-DE).The 4 differentially expressed protein spots were identified by mass spectrometry.Results Satisfactory 2-DE maps of ESRD patients serum protein were obtained and there were some differentially protein spots between the 2-DE maps of ESRD patients and normal controls.Conclusions The 2-DE technology for the serum proteome of ESRD patients is set up.
6.Study on the relationship between obesity and gastroesophageal reflux disease
Dongmei LIU ; Jianjun LIU ; Shurui TIAN ; Xiulan ZHAN ; Fangfang LU ; Tao JI ; Changrong DENG ; Jimin WU
Chinese Journal of Digestion 2015;(11):721-725
Objective To investigate the relationship between obesity and esophageal high resolutionmanometry ,24‐hour pH monitoring and gastroscopic results of patients with gastroesophageal reflux disease (GERD) .Methods A total of 196 patients with GERD(DeMeester score>14 .72) were selected and divided into normal weight group (18 .5 kg/m2 < BMI < 24 kg/m2 ) , overweight group (24 kg/m2 ≤BMI<28 kg/m2 ) and obese group (BMI≥28 kg/m2 ) according to body mass index (BMI) . Esophageal high resolution manometry ,gastroscopy and 24‐hour pH monitoring were performed with DeMeester score calculated . The classification of esophagitis was according to Los Angeles standard . Normal distributed measurement data were compared by analysis of variance .Non normal distributed measurement data were repesent as M(P25 ,P75) ,and were compared by rank sum test .Chi square test was for count data comparison .Results Compared with normal weight group and overweight group , abdominal length of low esophageal sphincter (LES) of obese group was shorter (1 .90 cm ,0 .85 cm to 2 .45 cm ;2 .85 cm ,2 .23 cm to 3 .20 cm ;2 .50 cm ,1 .98 cm to 3 .0 cm ) , and the differences w ere statistically significant (Z=19 .913 ,P<0 .01) .But there was no significant difference in pressure ,total length of LES and distal esophagus amplitude (all P>0 .05) .The percent total time pH≤4 of obesity group was 15 .42% (10 .31% to 21 .49% ) ,percent supine time pH≤4 was 14 .21% (5 .75% to 34 .98% ) and percent upright time pH≤4 was 14 .25% (8 .19% to 18 .13% ) .The reflux episodes (106 .50 ,67 .00 to 145 .75) and the longest duration of reflux episodes (28 .10 min ,10 .90 min to 47 .93 min) were more than those of normal group (9 .74% ,5 .35% to 15 .96% ;7 .31% ,3 .25% to 11 .80% ;8 .45% ,5 .43% to 17 .48% ;72 .50 ,53 .00 to 100 .50;15 .80 min ,9 .90 min to 21 .28 min) and overweight group (11 .36% , 6 .74% to 15 .87% ;7 .74% ,2 .36% to 15 .05% ;11 .27% ,3 .37% to 14 .73% ;85 .50 ,58 .75 to 117 .75;21 .40 min ,11 .50 min to 39 .90 min) ,and the differences were statistically significant (Z=7 .054 ,11 .181 , 6 .429 ,6 .452 ,8 .246 ,all P<0 .05) .The incidences of hiatus hernia and reflux esophagitis of the obese group (both 56 .67% (17/30)) were both higher than those of normal weight group (36 .46% (35/96) and 30 .21% (29/96)) and overweight group (30 .00% (21/70) and 27 .14% (19/70)) ,and the differences were statistically significant (χ2=6 .439 and 9 .000 ,both P<0 .05) .However ,there was no statistically significant difference among the three groups in the incidence and severe degree of asthma as an extra esophageal appearance (all P>0 .05) .There was no statistically significant difference in the incidence of Barrett′s esophagus among three groups (all P>0 .05) .Conclusions Compared with that of normal weight group and overweight group of patiento with GERD ,abdominal length of LES of obesity group was shorter .With an increase in BMI , acid exposure and the incidences of reflux esophagitis and hiatal hernia also increased .
7.Diagnosis and treatment of liver-localized lymphoproliferative disease following liver transplantation
Ranran JIANG ; Jianjun ZHANG ; Zhijun ZHU ; Hong ZHENG ; Yonglin DENG ; Cheng PAN
Chinese Journal of Organ Transplantation 2012;(11):676-679
Objective To analyze the clinical diagnosis and treatment strategies of liver-localized posttransplantation lymphoproliferative disease (LL-PTLD).Methods Six cases of LL-PTLD from more than 3000 cases of liver transplant recipients from July 2003 to July 2011 were retrospectively analyzed.Other six cases of LL-PTLD were retrieved through Pubmed and Wanfang.The diagnosis and treatment of 12 cases of LL-PTLD were summarized and analyzed.Results All patients with LL-PTLD were diagnosed pathologically.The incidence of LL-PTLD was 0.2% (6/3000).Among 12 patients,immunosuppressant and anti-EB virus treatment was reduced or withdrawn in the vast majority of patients,and treatment response was satisfactory.Systemic chemotherapy was given in 6 cases,and three of them died.Local radiation therapy was given in 4 cases,the tumor was significantly controled,and patients survived.Secondary liver transplantation was performed on 3 cases: 1 case died of recurrent lymphoma,and one case received partial hepatectomy and no lymphoma recurred.Conclusion For cases with obstructive symptoms of fever and chills associated with jaundice without reasonable explanation,LL-PTLD is suspected and diagnosed by liver biopsy.Basic treatments such as adjustment of immunosuppressive agents and anti-viral therapy are recommended as early as possible.Local radiation therapy is a treatment method of LL-PTLD,which can obtain a satisfactory therapeutic effect.
8.Reconstruction by the second toe tibial toe pulp skin flap for soft tissue defects of the finger
Jianjun LU ; Haitao TAN ; Jianzhong JIANG ; Xiang LUO ; Pingou WEI ; Han LIN ; Guiquan DENG
Chinese Journal of Microsurgery 2010;33(4):278-280,后插三
Objective To discuss the surgery procedure and treatment effect of reconstruction of the soft tissue of the thumb/finger defects by the second toe tibial toe pulp skin flap. Methods Ten patients with the soft tissue of pulp of the thumb/finger defects were treat by the same side of the second toe tibial toe pulp skin flap, all the patients have the soft tissue defect of finger pulp with exposed phalanx. Crush them in 4 cases, the machine cut wound in 6 cases. A fixed 2 cases, delayed operation 3-7d after injury to repair in 8 patients. The side of skin flap varied from 2.0 cm × 2.2 cm to 2.0 cm × 3.5 cm. Results Ten fingers in 10 cases all survived. Necrosis in edge part of the shin graft occurred in 2 cases, which was healed through changing of dressing. All cases were followed form 4 months to 16 months. The blood-supply, texture and elasticity of transferred flaps and the shape of fingers pulp were excellent. Good function recovery of the fingers was achieved. Pain and temperature sence were regained. Two point discrimination of the finger pulp was 5-9 mm.Primary healing occurred in all cases. It did not disturb dressing shoes and walking. Conclusion It is a reliable approach for soft-tissue coverage of the thumb/finger using the second toe tibial toe pulp skin flap based on distal perforators of digital artery or ulnar artery. The advantages include simply procedures, reliable blood supply without sacrificing main aneries and possibilities of sensoly recovery.
9.Medication Compliance Investigation and Pharmaceutical Care for 50 Cases of Hypertension
Jianjun ZHOU ; Guojiang PENG ; Yi CAO ; Shiyun WANG ; Xiaojin HUANG ; Pingmei DENG
China Pharmacist 2017;20(8):1414-1416
Objective: To understand the medication compliance of inpatients with essential hypertension, analyze the influencing factors in medication compliance of the patients and perform the targeted medication education and pharmaceutical care.Methods: Medication education and guide were conducted in 50 cases of patients with essential hypertension based on the main contents in guidelines for prevention of hypertension.Every patient completed regular follow-ups in two months after being recruited.The relevant information about the treatment and medication were collected and analyzed.Results: Through the medication education and pharmaceutical care, the patients had a better understanding on the relevant knowledge of hypertension, rational drug use and treatment.Among the 50 patients, the percentage of completely following the doctor's advice on the hypertension medication was 86%, that of quitting smoking and limiting alcohol was 82%, and that of optimized life way was 78%, and totally 82% of the patients effectively controlled blood pressure or improved markedly when compared with the situation on admission.Conclusion: Medication education and pharmaceutical care conducted by clinical pharmacists is very important for the patients with high blood pressure.It can help patients build a good lifestyle or improve the quality of life by improving the medication compliance of patients, alleviating complications and reducing adverse drug reactions.
10.Dosimetric comparison of two arcs VMAT plan and IMRT plan for breast cancer post-mastectomy
Jiahao WANG ; Xiadong LI ; Qinghua DENG ; Zhibing WU ; Bing XIA ; Jianjun LAI ; Rongjun TANG
Chinese Journal of Radiological Medicine and Protection 2014;34(12):942-945
Objective To analyze the biophysical dosimetric characteristics and clinical application ability of VMAT technology for breast cancer post-mastectomy.Methods 28 patients with breast cancer (10 at left side and the other at right side) were planned in different ways respectively.One was two 90 degree arc VMAT plan and the other were 5 beam IMRT plan.The dosimetric parameters of two different plans including tumor control probability (TCP),conformity index(CI),homogeneity index (HI),V95and V110 in target,normal tissue complication probability (NTCP),V5,V20,V30 for ipsilateral lung,NCTP,D V25 for heart,D for the contralateral breast in OARs,MU and times were compared.Results The average tumor control probability (TCP) in VMAT and IMRT group was(96 ±2)% and (90 ±2)% (t =-6.28,P < 0.01),respectively.The PTV dose average homogeneity index (HI) of VMAT plans was better than that of IMRT plan (0.15 ±0.04 vs 0.22 ±0.02,t =13.29,P <0.01).For cancer position in left side,the mean dose of heart was decreased by 433.24 cGy in the VMAT plan.The NTCP of the hearts in VMAT plans had statistically significant difference compared with IMRT plans [(1.00±0.12)% vs (1.70±0.13)%,t =2.14,P <0.05].For plans of right breast cancer,the average mean dose of hearts in two control group was (3.27 ± 0.26) Gy and (6.00 ± 0.47) Gy (t =9.21,P<0.01).The total monitor unit (MU) was 530.7 in the VMAT arm and 693.9 in the IMRT arm (t =9.58,P <0.01).The treatment time was shorter in VMAT arm (t =8.40,P <0.05).Conclusions VMAT plans have better clinical value and more superior biophysical dosimetric characteristics for breast cancer post-mastectomy.