1.Update research on thermochemotherapy
Qian DONG ; Hu CHEN ; Yan KONG ; Lei HONG ; Da JIANG
Cancer Research and Clinic 2009;21(7):499-501
Hyperthermia is a means of adjuvant therapy, which have a sensitizing effect to radiotherapy and chemotherapy. In recent years, the molecular biology, cell and animal experimental research of tumor thermochemotherapy progressed very quickly, which provide theoretical foundation and guidance for us to further develop hyperthermia combined with chemotherapy in clinical trials. In this paper, the studies with the mechanism of thermo-chemotherapy treatment of tumor, different ways of thermochemotherapy and commonly used drugs in thermochemotherapy are reviewed.
3.Three cases of acute p-nitrochlorobenzene poisoning.
Dong-da HU ; Jian-jun REN ; Jia-yi WANG ; Gen-fu PAN ; Qian WANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2004;22(3):232-232
Adult
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Epilepsy
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chemically induced
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therapy
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Humans
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Male
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Nitrobenzenes
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poisoning
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Occupational Exposure
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Poisoning
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complications
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therapy
4.Inducement, Purification and Characterization of?-mannanase from Armillariella tabescens EJLY2098
Dong-Sheng YAO ; Xiao-Kui HUANG ; Da-Ling LIU ; Chun-Fang XIE ; Rong HU ;
China Biotechnology 2006;0(07):-
Armillariella tabescens EJLY2098 was capable of secreting p-mannanase by konjac inducement. A 34 orthogonal design was applied to determine the optimum medium of inducing mannanase by Armillariella tabescens EJLY2098. The results suggested that Armillariella tabescens EJLY2098 secreted the high-activity enzyme in the optimum medium, which was composed of 2% konjac, 1% peptone, 25% potato juice,0.3% KH2PO4,15% MgSO4?7H2O, 0.01% VitB1. Purified by DEAE-anion exchange chromatography, two eluting peaks (P1 and P2) with the p-mannanase activity were obtained, and one of them (named?-mannanase P2) was a single band by the SDS-PAGE, and the molecular weight of?-mannanase P2 was 78. 9kDa. The isoelectric point of?-mannanase P2 was estimated to be 4.0-4. 1. The optimum activity for the enzyme was found at 60℃and pH4. 0 - 6. 0, and the enzyme was stable between pH4. 5 - 6. 0. The activity of?-mannanase P2 were enhanced by Na+ and Ba2+ . This?-mannanase can be used in feed industy. a new fungi secreting?-mannanase was obtained, providing an important base for cloning mannanase gene and constructing recombin microbe expressing?-mannanase .
5.Related factors of pre-dialysis blood pressure variability in under-age patients undergoing maintenance hemodialysis
Ying HU ; Youfang HUANG ; Jingjing DA ; Dong HUANG ; Yuchuan WANG ; Yan ZHA
Chinese Journal of Nephrology 2015;31(11):816-819
Objective To explore the blood pressure variability (BPV) in pediatric patients undergoing maintenance hemodialysis (MHD) and to assess the factors associated with pre-dialysis BPV (pre-HD BPV).Methods The pediatric patients who undergone regular dialysis for more than twelve months from Oct 2005 to Oct 2011 in hemo dialysis center of Guizhou Provincial People's Hospital were divided into high pre-HD BPV group and low pre-HD BPV group.Baseline characteristics,biochemical indexes and cardiac function parameters measured by echocardiography were collected in both groups and multiple linear regression analysis was performed.Results Pediatric patients in high pre-HD BPV group demonstrated significantly higher inter-dialytic weight growth rate (IDWG),pre-dialysis systolic blood pressure and average amount of dehydration than those in low pre-HD BPV group (P < 0.05),while significantly lower hemoglobin and albumin levels than those in low pre-HD BPV group (P < 0.05).Comparison among laboratory indicators,serum phosphorus and parathyroid hormone demonstrated significant difference between groups (P < 0.05).For all pediatric patients,pre-HD BPV was positively correlated with IDWG (β=0.165),pre-dialysis systolicblood pressure (β=0.259),and iPTH (β=0.187),while negatively correlated with hemoglobin level (β=-0.199).Conclusions Increasing IDWG,higher pre-dialysis systolic blood pressure,anemia and secondary hyperparathyroidism influence BPV in pediatric patients on MHD.
6.Analysis of health education effects on integrated program for controlling endemic fluorosis in Guizhou Province
Yin, LIANG ; Dong, AN ; Ping, HE ; Da-sheng, LI ; Zheng-jing, JIN ; Xiao-qiang, HU
Chinese Journal of Endemiology 2008;27(2):216-219
Objective To evaluate the effects of implementing the health education in the Central Fund Program to control endemic fluorosis in Guizhou.Methods The samples were randomly surveyed to evaluate knowledge awareness in students and households as well as the habit formation after implementing the integrated program which mainly consisted of installing the improved stoves,supported by the Central Funds and health education in 5 counties.Results After health education,the rates of knowledge awareness in the students and the households were 94.80%(15 562/16 415)and 88.23%(4482/5080),respectively,and increased significantly compared with those before intervention[44.20%(26 364/59 645),22.81%(3082/13 510)],the difference being significant(χ2=13 324.05,6546.24,P<0.01).The rates of drying corn and chili with the coal fire were 5.61% (57/1016)and 5.41%(55/1016),respectively,and decreased significantly compared with those before intervention [77.41%(1076/1390),78.92%(1097/1390)],the difference being significant(χ2=1214.49,1270.92,P<0.01).The rates of washing corn and chili were 99.51%(1011/1016)and 94.59%(961/1016),respectively,and increased significantly compared with those before intervention[84.60%(1176/1390),76.55%(1064/1390)],the difference being significant(χ2=154.80,143.32,P<0.01).The rates of using the uncovered and unventilated iron stoves and table stoves were 4.71%(38/807)and 8.37%(60/717),respectively,and decreased significantly compared with those before intervention[29.99%(14 483/48 299),98.33%(95 070/96 685)],the difierence being significant(χ2=243.51,25 282.99,P<0.01).Conclusions Implementing the health education is the basis for the integrated measures for controlling the endemic fluorosis in the endemic regions.The consciousness and activity of the target people have been enhanced greatly.The good behaviors in the target people are forming,the expected goal is reached.
7.Low ankle brachial index and risk of death: a meta-analysis
Ying DONG ; Jin-Ming YU ; Da-Yi HU
Chinese Journal of Cardiology 2011;39(3):259-261
Objective To evaluate the association between low ankle brachial index and risk of death. Methods Related cohort studies in the past 12 years were collected. Heterogeneity was analyzed with χ2 and I2. Pooled hazard ratio (HR) as the effect indicator and 95% confidence interval (CI) were used to estimate the association of low ankle brachial index and risk of death by fixed effect model ( inverse variance method). Results A total of 8 studies were included with sum sample size of 30 029. In heterogeneity analysis, χ2 was 5.46, I2 was 0. 0%, and P was 0. 604. Meta-analysis resulted in pooled HR of 1.69 (95%CI:1.55 - 1.84). Conclusion Low ankle brachial index is associated with increased risk of death.
8.Rheological properties of poloxamer 407 aqueous solutions.
Jie HU ; Da-wei CHEN ; Dong-qin QUAN
Acta Pharmaceutica Sinica 2011;46(2):227-231
Rheological properties of poloxamer 407 (brand named Pluronic F127) were examined by changing shear rate, temperature and the recovery properties of apparent viscosity after heating for several times. The results indicated that poloxamer 407 aqueous solution showed a Newtonian behavior at a low concentration while it might be a pseudoplastic fluid when the concentration reached a certain point. The thixotropy and the sol-gel transition temperature decreased with increasing the concentration (it could be an in situ gel at body temperature when the concentration of poloxamer 407 up to 15.25%). The results that obtained from the theological data would be useful in the application of poloxamer 407 such as in situ gel preparation.
Dose-Response Relationship, Drug
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Drug Compounding
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Drug Delivery Systems
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Excipients
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administration & dosage
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chemistry
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Poloxamer
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administration & dosage
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chemistry
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Rheology
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Shear Strength
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Solutions
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Temperature
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Viscosity
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Water
9.Evaluation and surgical treatment for chronic wound of leg and foot.
Qing-jun YAO ; Da-hai HU ; Mao-long DONG ; Ming-da XU ; Ke TAO ; Hong-tao WANG ; Song-tao XIE ; Qin ZHOU ; Bi CHEN
Chinese Journal of Burns 2007;23(1):29-31
OBJECTIVETo investigate the optimal operation method for the management of various chronic wounds in legs and feet.
METHODSFifty-one chronic wounds were evaluated according to infection, inflammatory response, and distribution in different areas of the leg and foot. Preoperative treatment was given accordingly, then transposition of skin flap, skin grafting, or amputation was performed. The healing rate after single session operation and average hospitalization were statistically analyzed.
RESULTSThe wound healing rate after single session operation was 86. 3% , the average hospital stay was (17. 8 +/- 2. 1) days, and the appearance and function of the leg and foot after operation was satisfactory.
CONCLUSIONThe appropriate preoperative treatment and operation method conforming to the wound location and evaluation are of vital importance in the management of chronic wounds in the leg and foot. Operation is one of the most effective ways to repair chronic wounds in the leg and foot, and it can shorten the wound healing process and restore the function.
Adult ; Chronic Disease ; Foot Ulcer ; pathology ; surgery ; Humans ; Leg Ulcer ; pathology ; surgery ; Longevity ; Male ; Surgical Flaps ; Wound Healing
10.Effect of the degree of muscle relaxation on motor-evoked potential elicited by transcranial electrical stimulation in spine surgery.
Chuan-xiang LI ; Fu-hu SONG ; Yi WANG ; Da-di JING ; Dong-mei SONG ; Li CHEN
Journal of Southern Medical University 2010;30(12):2686-2688
OBJECTIVETo study the effect of the degree of muscle relaxation on motor-evoked potential elicited by transcranial electrical stimulation in patients undergoing spine surgery.
METHODSSixty ASA I or II patients undergoing spine surgery were randomly divided into 5 groups (n=12). After an initial intubation, continuous cisatracurium infusion was administered with continuous monitoring of T1. The infusion dose was adjusted according muscle relaxation monitoring, and different muscle relaxation degrees were maintained in the 5 groups. The band and latency of D1 in motor-evoked potential was observed with also subjective assessment of the muscle relaxation.
RESULTSSignificant differences in the band and latency were noted in groups I and II compared with the reference values, but not in groups III, IV and V. Subjective assessment revealed significant differences between groups IV and V and groups I and III in terms of the number of cases with poor muscle relaxation.
CONCLUSIONT1 value between 10% and 15% is sufficient for MEP monitoring and allows the maintenance of good muscle relaxation during spine surgery.
Atracurium ; therapeutic use ; Electric Stimulation ; Evoked Potentials, Motor ; Humans ; Monitoring, Intraoperative ; Muscle Relaxation ; Neuromuscular Nondepolarizing Agents ; therapeutic use ; Orthopedic Procedures ; methods ; Spine ; surgery