1.Influence of jiaweibugan decoction on VEGF expression of sciatic nerve in experimental diabetic rats
Jianyu FU ; Zeqi CHEN ; Juan HUANG ; Lili XIONG ; Xingping DAI
Journal of Chinese Physician 2008;10(8):1028-1031
Objective To observe the effect of jiaweibugan decoction on VEGF expression of sciatic nerve in experimental diabetic rat and explore the preventive and therapeutic effects of iiaweibugan decoction on peripheral neumpathy in~xperimental diabetic rats.Methotis The diabetic rat model was established by streptozotocin(STZ).The rats were killed on the 4th or 8th week from the beginning of treatment respectively,and VEGF mRNA of sciatic nerve was detected by reverse-transcriptase polymerase chain reaction(RT-PCR).Resuits The results of RT-PCR showed that VEGF expression ofthe model group and treated group on the4th or8th week WaS higherthan that of the normal control group(P<0.05).Compared with the model group,VEGF expression in the diabetic rats treated byjiaweibugan decoction increased markedly at the end of4th week(P<0.05),while decreaSed significantly at the end of8th week(P<0.05).Conclusion Jiaweibugan decoction has a proventive and therapeutic effect on peripheral neumpathy in experimental diabetic rats.
2.The adverse reaction of L-asparaginase and its prevention.
Yong-hong LAI ; Zi-liang WU ; Fu-xiong CHEN
Chinese Journal of Pediatrics 2005;43(7):533-534
Antineoplastic Agents
;
administration & dosage
;
adverse effects
;
Asparaginase
;
administration & dosage
;
adverse effects
;
Child
;
Child, Preschool
;
Combined Modality Therapy
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Dose-Response Relationship, Drug
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Drug Hypersensitivity
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prevention & control
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Female
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Humans
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Hyperglycemia
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chemically induced
;
prevention & control
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Male
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Precursor Cell Lymphoblastic Leukemia-Lymphoma
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drug therapy
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Severity of Illness Index
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Time Factors
;
Treatment Outcome
3.Progress in researches on L-asparaginase targeted to childhood leukemia.
Yan-qin CUI ; Fu-xiong CHEN ; Zi-liang WU
Chinese Journal of Pediatrics 2004;42(3):227-230
Antineoplastic Agents
;
administration & dosage
;
adverse effects
;
therapeutic use
;
Asparaginase
;
administration & dosage
;
adverse effects
;
therapeutic use
;
Child
;
Drug Administration Routes
;
Drug Administration Schedule
;
Forecasting
;
Humans
;
Leukemia
;
drug therapy
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma
;
drug therapy
4.Correlation of the expressions of serum hypoxia-inducible factor-1α and brain-derived neurotrophic factor with cognitive impairment in Wistar rats under different hypoxia conditions
Weifeng YE ; Liang CHEN ; Min XIONG ; Xiaoyan FU ; Jian WANG
Journal of Medical Postgraduates 2017;30(6):569-573
Objective Obstructive sleep apnea hypopnea syndrome (OSAHS) often causes damage to multiple systems, especially to the central nervous system, inducing cognitive dysfunction.This study aims to explore the possible correlation of the expressions of serum hypoxia-inducible factor-1α (HIF-1α) and brain-derived neurotrophic factor (BDNF) with cognitive impairment in rats under different hypoxia conditions.Methods Twenty-four Wistar rats were equally randomized into a normal control, a chronic intermittent hypoxia (CIH), and a chronic continuous hypoxia (CCH) group.The rats of the CIH group were placed in a hypoxia chamber filled with N2 and air, the oxygen concentration switched from (7±0.5)% to 21%, 1.5 minutes for each state and 4 minutes for each cycle, while those of the CCH group were placed in another hypoxia chamber with the oxygen concentration of (7±0.5)%, 8 hours a day and all for 30 days.Then we recorded the body weight of the rats, detected the expressions of serum HIF-1α and BDNF by ELISA, and observed the changes of behavior by Morris water maze test and those of the hippocampal morphological structure by HE staining.Results At 30 days after modeling, the body weight of the rats was significantly decreased in the CIH and CSH groups as compared with the normal control ([195.75±6.497] and [180.88±12.017] vs [218.63±15.287] g, P<0.05).Positioning navigation showed that the escape latency was significantly longer in the hypoxia models than in the controls (P<0.05), even longer in the CIH than in the CCH group (P<0.05).Spatial exploration test manifested a lower frequency of crossing the platform in the CIH and CCH groups than in the control ([2.63±1.45] and [3.22±1.30] vs [4.97±0.47] times, P<0.05).The expression levels of serum HIF-1α and BDNF were significantly higher in the CIH ([36.14±9.34] and [1625.34±332.44] pg/mL) and CCH ([27.27±6.88] and [1204.07±363.81] pg/mL) than in the normal control group ([14.11±4.06] and [1036.40±124.48] pg/mL) (P<0.05), even higher in the CIH than in the CCH group (P<0.05).HE staining exhibited scattered and disorderly arrangement of hippocampal neurons in the model rats, with unclear nuclear membrane, pyknosis of the nuclei, darkly stained cytoplasm, and some damaged cells.More obvious absence and vacuolization of some cells were observed in the rats of the CIH group.Conclusion Chronic hypoxia inhibits the growth and development of rats and induces cognitive dysfunction.High-level HIF-1α in chronic intermittent hypoxia indicates hypoxia-stress of the body, while compensatory increase of serum BDNF may be involved in neuronal cell damage regulation.
5.Clinical analysis of curative effect of acellular dermal matrix contrast with temporalis fascia in type Ⅰ tympanoplasty
Xiaoyan FU ; Yuejia SU ; Xiaohua FENG ; Liang CHEN ; Min XIONG
Chinese Archives of Otolaryngology-Head and Neck Surgery 2017;24(8):396-398
OBJECTIVE To investigate the clinical curative effect of acellular dermal matrix contrast with temporalis fascia in type Ⅰ tympanoplasty. METHODS A retrospective analysis of 60 inflammatory chronic suppurative otitis media patients from January 2014 to January 2015 in Genenral Hospital of PLA Guangzhou Military Area were conducted.All cases were perpormed the ear incision under local anesthesia, including 32 cases(32 ears) with acellular dermal matrix, 28 cases(28 ears) with temporal fascia. The operation time, postoperative pain, the healing of tympanic membrane and the postoperative recovery were compared between the two groups. RESULTS There was significant difference in the operation time and postoperative pain between the two groups(P<0.05). There was no significant difference in the success rate of tympanic membrane healing and postoperative hearing improvement(P>0.05). CONCLUSION The effect of acellular dermal matrix for repairing tympanic membrane is similar to the temporalis fascia. The use of acellular dermal matrix has the advantage of shorter operation time, less postoperative pain, and can avoid regional two incisions, it is worthy of clinical application.
6.Analysis of financial burden of hypertension patients in three cities
Manli CHEN ; Juyang XIONG ; Zelin XU ; Jiakang FU ; Chunli YI ; Jian LI ; Li CHEN ; Lan YAO
Chinese Journal of Hospital Administration 2010;26(9):674-677
Objective To measure the financial burden incurred by hypertension to urban patients in Beijing, Nanjing and Hangzhou cities. Methods Two communities were sampled from the three cities randomly, and 300 hypertension patients were sampled randomly from hypertension control files in each community for questionnaire survey. Results Health expenditure of the families with hypertension patients accounts for 14. 4% of the family's income, and 18. 2% of the family's expenditure, a ratio far beyond the national average (10.6 %). However, the majority of them report the burden as affordable.The basic medical insurance for urban residents helps alleviate the financial burden of hypertension patients and the extent of such burden has a close bearing on the outcome of hypertension treatment and prevention. Conclusion Effective community-based blood-pressure monitoring and control system is key to reducing the financial burden of hypertension. The reimbursement policy for hypertensive patients within the basic medical insurance is expected to be further improved.
7.Application and Research of Clinical Laboratory Information Management System
Bo FU ; Yinya XU ; Bing XIONG ; Ju LIU ; Qingmei CHEN ; Jing CHEN
Chinese Medical Equipment Journal 2003;0(10):-
Objective The application of laboratory information system (LIS) increases extensively. The objective is to expatiate how to widen the application of LIS so that it can be seamlessly combined with HIS, and play a greater role in quality control of clinical laboratory. Methods A consummate and compact working process was designed. A bidirectional communication from equipment to client was established. Module modes and prefect security systems were set up. Results With the existing HIS network environment, corresponding bar codes were generated through the examination applications from the doctor's workstation. At the same time, patients' basic information and test information were generated based on the bar code. In this way, the seamless combination of LIS and HIS were achieved. The switch of the functional module was simple, efficient and easy to maintain. The internet version Kaspersky antivirus software was used in the area of security. Database were backed up automatically and regularly. Authority was strictly defined for operators in different level. Conclusion Through the current application in our section, LIS has already been an essential part in the process to become a modern hospital.
8.Assessment of left ventricular systolic synchrony before and after percutaneous transluminal septal myocardial ablation of hypertrophic obstructive cardiomyopathy by two dimensional speckle tracking imaging
Hailin TANG ; Bowen ZHAO ; Guosheng FU ; Bei WANG ; Peng LI ; Lilong XU ; Ran CHEN ; Li XIONG
Chinese Journal of Ultrasonography 2012;21(2):108-111
ObjectiveTo assess the characteristics of left ventrlcular ( LV) systolic syncnrony before and 6 days after percutaneous transluminal septal myocardial ablation(PTSMA)in patients with hypertrophic obstructive cardiomyopathy (HOCM) using two dimensional speckle tracking imaging(2DSTI),and to investigate correlation between the LV systolic synchrony and LV outflow-trace gradient (LVOTG).MethodsLVOTG were measured before and 6 days after PTSMA in 21 patients with HOCM.The two dimensional loop-cinec were obtained in three levels of the short axis views of LV (mitral valve,papillary muscle and cardiac apex).The time from the onset of QRS complexes to systolic peak strain from the radial vectors (TRs) was recorded using 2D-STI.The standard deviation of the TRS of 18 segments (TRsSD) were calculated as indicator of LV systolic synchrony.Results Six days after PTSMA,LVOTG decreased significantly from (84.3 ± 19.1)mm Hg to (40.6 ± 8.3)mm Hg( P <0.01).TRS of the base and middle segments of anteroseptal were prolonged dramatically( P <0.05) 6 days after PTSMA compared with that before.There were no significantly differences in TRs-SD of LV between before and 6 days after PTSMA ( t =1.03,P > 0.05).Decreased LVOTG correlated moderately to prolonged TRS of the base segments of anteroseptal ( r =0.657,P <0.05).Conclusions2D-STI can detect exactly the characteristics of LV systolic synchrony before and 6 days after PTSMA in patients with HOCM.
9.Development of three dimensional facial measurement system based on structured light projection
Yao-yang, XIONG ; Xiao-bo, CHEN ; Jian, SUN ; Fu-qiang, ZHANG ; Jun-tong, XI
Journal of Shanghai Jiaotong University(Medical Science) 2009;29(7):837-841
Objective To construct a system for three dimensional face scanning and measurement. Methods The measurement system was based on the principle of triangulation and the combination of gray-code and phase-shift structured light projection. The system software was developed for Windows XP with the aid of tools such as Visual C++ and Hoops. Results A three dimensional measurement system based on structured light projection was developed. The system hardware was composed of fringe projection unit, image gathering unit, system control unit and mechanical appearance, and the system software was composed of point cloud display and editing module. The lamp house of the system was 12V, the working distance was 900 mm, the scanning time was 5.5 s and the scanning field was 500 mm×400 mm. Conclusion The three dimensional measurement system based on structured light projection is a refined machine with safe light to eyes, and the accuracy and scanning speed are suitable to face scanning.
10.Experimental study of apoptosis in leukemic cell lines induced by combined use of Bevacizumab and chemotherapeutic drug
Jingde CHEN ; Ying HAN ; Weiping ZHENG ; Binbin HUANG ; Lanjun BO ; Jianfei FU ; Hong XIONG ; Aibin LIANG
Journal of Leukemia & Lymphoma 2009;18(2):75-78
Objective To investigate the potential application of targeting at vascular endothelial growh factor (VEGF) induced apoptosis in leukemic cell lines by combined use of Bevacizumab and chemotherapeutic drug. Methods Leukemic cells were treated with several drugs at different concentrations in culture. The effect of VEGF, Bevacizumab and co-treated with Ara-C on leukemic cells proliferation were evaluated by CCK-8 and apoptosis and cell cycle were detected by flow cytometry (FCM). Results VEGF could enhance the proliferation of leukemic cells and caused a dose-dependent manner on U937 cell. It also increased the percentage of cells in S phase, tested by, and Bevacizumab group was decreased. Apoptotic rate of cells treated with Bevacizumab or co-treated with Bevacizumab and Ara-C for 48 h were significantly higher when compared with control or Ara-C group, respectively (P<0.05), but the apoptotic rate of VEGF group or VEGF and Ara-C group was lower (P>0.05). There was no significant difference in apoptotic rate between control and combined use of VEGF, Bevacizumab and Ara-C group(P>0.05). Conclusion VEGF could enhance the proliferation of some leukemic cells, and may contribute to leukemic cells survival and a resultant resistance to chemotherapy-triggered cell death. The study also showed that leukemic cells growth was significantly inhibited by Bevacizumab through directly against VEGF, and the sensitivity of leukemic cells for chemotherapeutic drug was increased.