2.Anti-infection action of Bazheng mixture(BM) and effects of BM on immune function in mice
Ruyi LIU ; Huixun REN ; Jie WU ; Yingying DONG
Journal of Xi'an Jiaotong University(Medical Sciences) 1982;0(01):-
Objective To explore the pharmacological action of Bazheng mixture(BM) on infections disease of urinary system and effects of BM on immune function in mice.Methods After E.coli was injected into bladder of mice, the kidneys were examined for the anti-infection action of BM on ascending infection;and the effects of BM on immune function of mice were tested.Results BM ig remarkably decreased the percentage of kedney's infections area caused by ascending infection of E.coli [ED_(50) was(11.01?1.63)g/kg and the 95% CL was (9.50-12.76)(g/kg]);BM was also found effective in increasing the rate of carbon particle clearance and the index of carbon particle clearance,but BM had no significant effects on body fluid immunity and cell immunity in test for mice.Conclusion The mechanism of BM in treating infections disease of urinary system are mainly associated with the increasing rate of carbon particle clearance,and with bacteria clearance in urinary system.
4.Finding and Patterns of Chronic Inflammatory Sinonasal Disease on Sinus CT(An Analysis of 93 Cases)
Qingyun REN ; Jie HE ; Yulong DONG ; Dajun WANG ; Jingyu LI
Journal of Practical Radiology 1996;0(04):-
Objective To study the finding and patterns of chronic inflammatory sinonasal disease on CT. Methods All of 93 patients with chronic inflammatory sinonasal disease by clinical observations and operation,the appearances and patterns of chronic inflammatory sinonasal disease were analyszed.Results Six radiological patterns of inflammatory sinonasal disease were identified:( 1) infundibular,16/93 or 17%;( 2) osteaomeatal unit,27/93 or 28% ; (3) sphenoethmoidal recess,5/93 or 6%;(4) sinonasal polyposis,17/93 or 18%;(5) sporadic ( unclassifiabal ) ,13/93 or 14%;(6) mixing pattern,15/93 or 16% .Conclusion Assignment of patients to radiological patterns allows tailored endoscopic sinonasal surgical approach.
5.Analysis of Susceptibility Trend of Main Pathogen to Antibiotics in Our Hospital
Yanmin MA ; Jie ZHOU ; Hongliang DONG ; Biyun REN
China Pharmacy 2015;(26):3658-3660
OBJECTIVE:To provide reference for clinical application of antibiotics and the management of pathogen. METH-ODS:The clinical isolated bacteria in our hospital from 2011 to 2014 were identified and analyzed,and the amount of antibiotics in our hospital from 2011 to 2014 were analyzed. The operation and result of drug susceptibility test were in accordance with the standard of clinical laboratory standards institute(CLSI),using WHONET software for statistical processing. RESULTS:The main bacteria isolated in our hospital during 2011-2014 were as follows:constituent ratio of Escherichia coli were 14.93%,16.81%, 15.01% and 15.41%,respectively;that of Staphylococcus aureus were 9.84%,11.90%,9.83% and 7.17%,respectively;that of Acinetobacter baumannii were 9.00%, 9.95%, 14.24% and 18.64%, respectively;that of Pseudomonas aeruginosa were 12.36%,12.42%,14.20% and 15.48%,respectively. The main antibiotics used in our hospital during 2011-2014 were as fol-lows:the amount of piperacillin/tazobactam(2.25 g/a)were 4 685,12 610,13 639 and 14 542,respectively;that of cefepime (0.5 g/a)were 8 613,24 738,12 684 and 6 751,respectively;that of aztreonam(0.5 g/a)were 14 124,32 062,3 323 and 4 534,respectively;that of meropenem(0.5 g/a)were 2 291,5 436,6 813 and 5 341,repectively;that of levofloxacin(0.3 g/a) were 12 253,40 893,48 468 and 50 558,respectively. CONCLUSIONS:With the increase of antibiotics,susceptibility rate of main pathogen are gradually decreased;rational use of antibiotics plays an important role in decreasing the drug resistance.
6.Biocompatibility of a new titanium alloy containing copper
Baorui REN ; Jie LIU ; Erlin ZHANG ; Hui DONG
Chinese Journal of Tissue Engineering Research 2015;(34):5473-5479
BACKGROUND:Copper-titanium aloy has been fabricated in previous studies to improve the antibacterial property and biocompatibility of titanium materials. OBJECTIVE:With reference to the principle and experimental method specified by GB/T16886-ISO10993, to fuly and systematicaly assess the biocompatibility of copper-titanium aloy. METHODS:Based on the pre-experimental results, titanium aloy containing 10% copper was selected and subjected to oral mucosa stimulation experiment, skin stimulation test, acute systemic toxicity test, hemolytic test, prothrombin time test and dynamic coagulation test for biocompatibility evaluation. RESULTS AND CONCLUSION:The copper-titanium aloy has no oral mucous membrane irritation, no short-term systemic toxicity, no skin sensitization, and no hemolysis, indicating it has a good biocompatibility.
7.Investigation on pharmacognosic identification of two Yi Medicine in Yunnan province
LIN Chunyan ; FU Xingqing ; REN Jie ; DONG Yuan ; ZHANG Wenjie
Drug Standards of China 2024;25(1):010-017
Objective: To understand their appearance and microscopic characteristics, as well as their differences by studying the pharmacognosy of Yi medicine Elsholtzia rugulosa and Elsholtzia bodinieri, in order to provide a basis for identification and improvement of quality standards.
Methods: Stereo microscopy and optical microscopy and the macroscopic and microscopic identification methods were adopted to compare identification and digital representation for Elsholtzia rugulosa and Elsholtzia bodinieri from overall character, local characteristics, the microscopic identification characteristics, the transverse section and the powder.
Results:There were significant differences in the the macroscopic and the microscopic identification characteristics of Elsholtzia rugulosa and Elsholtzia bodinieri.
Conclusion: This study summarized the exclusive and practical features in pharmacognosic identification of Elsholtzia rugulosa and Elsholtzia bodinieri, it provides a useful reference for supervision the clinical medication,inspection,and standard drafting.
8.Separation, purification and primary reverse cholesterol transport study of Cordyceps militaris polysaccharide.
Shou-Dong GUO ; Ying-Jie CUI ; Ren-Zhong WANG ; Ren-Yuan WANG ; Wen-Xue WU ; Teng MA
China Journal of Chinese Materia Medica 2014;39(17):3316-3320
The authors designed to separate, purify and determine the monosaccharide composition of the polysaccharide from Cordyceps militaris, and study its effect on reverse cholesterol transport in vivo by isotope tracing assay. Polysaccharides were separate and purify by ion exchange column Q-sepharose Fast Flow and size exclusion column Sephacryl S200HR; the molecular weight and monosaccharide composition of the polysaccharides were determined by high performance gel permeation chromatography and high performance liquid chromatography coming with pre-column derivation, respectively. Finally, three purified polysaccharides CMBW1, CMBW2 and CMYW1 were obtained, their total carbohydrate contents were 87%, 89%, 95%, respectively; their protein contents were 6.5%, 1.3%, 2.8%, respectively; their molecular weights were 772.1, 20.9, 13.2 kDa, respectively; CMBW1 was composed of mannose, glucosamine, rhamnose, glucuronic acid, glucose, galactose and arabinose with a molar ratio of 7.25: 0.17: 1.29: 0.23: 6.30: 11.08: 0.79; CMBW2 was composed of mannose, glucosamine, galactose and arabinose with a molar ratio of 2.40: 0.16: 2.92: 0.24; CMYW1 was composed of mannose, glucosamine, glucuronic acid and glucose with a molar ratio of 0.59: 0.57: 0.45: 25.61. Polysaccharide at 50 mg x kg(-1) could significantly improve the transport of 3H- cholesterol to blood and excretion from feces. All of the three purified polysaccharides CMBW1, CMBW2 and CMYW1 were heteropolysaccharide; and they could improve reverse cholesterol transport in vivo, the underlying mechanisms are being studied.
Animals
;
Biological Transport
;
drug effects
;
Cholesterol
;
metabolism
;
Chromatography, High Pressure Liquid
;
instrumentation
;
methods
;
Cordyceps
;
chemistry
;
Mice
;
Monosaccharides
;
analysis
;
isolation & purification
;
Polysaccharides
;
chemistry
;
isolation & purification
;
pharmacology
;
Tritium
9.A preliminary discussion of angiographic anatomy and variations of rabbit hepatic vessels and catheterization methods of hepatic artery
Xiao-Dong WANG ; Ren-Jie YANG ; Hong-Zhi ZHANG ; Hong-Liang SUN ;
Journal of Interventional Radiology 2006;0(12):-
Objective To study the normal angiographic anatomy and variations of rabbit hepatic vessels,and explore the optimal method for hepatic artery catheterization.Methods 30 rabbits were divided into two groups randomly.Modified surgical method and interventional method were used to catheterize hepatic artery respectively,and followed by angiography to demonstrate the normal anatomy and variations of rabbit celiac artery,hepatic artery and portal vein.Results The route and distribution of rabbit celiac artery and hepatic artery were very different from human's.The commonly seen variation showed the differences in branching bifurcation of hepatic-gastric artery,with the incidence of 13.3%.The rates of successfully hepatic artery catheterization with surgical and interventional methods were 86.6%(13/15)and 80%(12/15)respectively (P>0.05).The surgical method will not be successful,whenever there's variation.Conclusion The normal anatomy and variation of rabbit celiac artery and hepatic artery are quite different from human's.Both surgical and interventional catheterizations could be rather successful but possessing advantages and disadvantages of each its own.
10.Fermentative Hydrogen Production with Xylose by Clostridium sp. HR-1 Isolated from Cow Dung Compost
Ji-Fei XU ; Nan-Qi REN ; Jie QIU ; Dong-Xia SU ;
Microbiology 1992;0(04):-
A anaerobic hydrogen-producing strain HR-1 was isolated from compost. Phylogenetic analysis based on 16S rRNA sequence similarity indicates that strain HR-1 is the closest relative to Clostridium ace- tobutylicum ATCC 824, with the similarity of 96%. Biological characteristics and phylogenetic analysis of 16S rRNA gene indicate that HR-1 is a new species named Clostridium sp. HR-1. Cells are Gram-positive, mobile rod-shaped. Spores and flagellums were no observed. Temperature range for growth is 10?C to 45?C (optimum temperature 37?C~39?C), and range pH for growth is 4.0 to 10.0 (optimum pH 7.5~8.0). H2, CO2, acetate, butyrate and a little ethanol are the end products of PYG fermentation. Strain HR-1 has the ability to use organic nitrogen and inorganic nitrogen sources for growth and hydrogen production, and yeast extract is the optimum nitrogen source for hydrogen production. Strain HR-1 produces hydrogen from xylose (3 g/L) at 37?C and initial pH 6.5, the hydrogen yields and maximal hydrogen production rate are 1.84 mol-H2/mol-xylose and 10.52 mmol-H2/h?g-cdw, respectively. Strain HR-1 is able to utilize glucose, galactose, fructose, mannose and cellobiose for hydrogen production and the hydrogen yields from glucose is 2.36 mol-H2/mol-glucose.