1.The development of early warning system for lifecycle management of measuring instruments
Long ZHANG ; Yizhu WANG ; Nan LI
China Medical Equipment 2013;(9):33-34
Objective: To realize cycle management early warning function of measuring instruments. Methods: The software will visit the existing access log files of measuring instruments for the next test date. They are compared with the system date. Software will alarm when measurement instruments test cycle is about to expire. Results: By setting the parameters, the software can easily access the measuring equipment log files. It can effectively implement early warning function. Conclusion:Visual Basic6.0 achieved the development of this software conveniently, took up less system resources, powerful, effectively preventing the verification of measuring instruments and missed period expired to happen.
2.Clinical Analysis on Brachial Plexus Injury with 41 Cases
Ziyang LIU ; Xinglin WANG ; Yizhu GUO
Chinese Journal of Rehabilitation Theory and Practice 2007;13(4):393-395
Objective To observe the long-term result of brachial plexus injury.Methods41 cases of brachial plexus injury were divided into the non-operation group (n=11), neurolysis group (n=17), never repair group (n=13). Retrospective analysis of the charts and follow-up survey of the functional recovery of shoulder joint and elbow joint were carried out. Gilbert score and Mallett score were adopted at the follow-up.ResultsIn the non-operation group, 9 cases were graded as excellent, 1 case as good, 1 case as bad. In the neurolysis group, 2 cases were graded as excellent and good. In the never repair group, 2 cases of shoulder joint obtained excellent, 4 cases of elbow joint were grade as good.ConclusionThe simple surgical result of brachial plexus injury is not satisfactory, it should be combined with postoperative rehabilitation.
3.A CYTOTOXIC METABOLITE OF STREPTOMYCES SP. SC120
Jidong WANG ; Xiaoyi WEI ; Xiru ZHU ; Haihui XIE ; Yizhu CHEN ;
Microbiology 1992;0(01):-
During the course of the investigation of the antifungal metabolites against Peronophythora litchii from the fermentation broth of Streptomyces sp SC120, an antibiotics that exhibited the cytotoxicity to CNE 2 was isolated By spectral (UV, IR, HRMS, 1H NMR, 13 C NMR, 1H 1H COSY, HMQC and HMBC) analyses, its structure was identified as pimprinine The cytotoxicity of pimprinine to CNE 2 was reported for the first time
4.High-frequency ultrasonography for diagnosing the brachial plexus disease
Yuexiang WANG ; Yizhu GUO ; Peifu TANG ; Lihai ZHANG ; Jie TANG
Chinese Journal of Medical Imaging Technology 2010;26(2):327-329
Objective To assess the clinical value of high-frequency ultrasonography in diagnosis of the brachial plexus disease. Methods Forty-two patients with suspected brachial plexus disease underwent high-frequency ultrasonography. The ultrasonographic findings were compared with clinical data. Results Among the 42 patients, 33 were diagnosed as brachial plexus abnormalities, while 9 as normal according to clinical data. With high-frequency ultrasonography, 26 patients were diagnosed as abnormal brachial plexus and 16 patients as normal. The sensitivity, specificity and accuracy of ultrasonography in diagnosing brachial plexus abnormalities was 78.79%, 100% and 83.33 %, respectively. Conclusion High-frequency ultrasonography is useful in evaluating the brachial plexus disease and may become an important imaging methods for brachial plexus.
5.Intestinal absorption of different combinations of active compounds from Gegenqinlian decoction by rat single pass intestinal perfusion in situ.
Rui AN ; Hua ZHANG ; Yizhu ZHANG ; Ranchi XU ; Xinhong WANG
Acta Pharmaceutica Sinica 2012;47(12):1696-702
The aim is to study the intestinal absorption of different combinations of active compounds out of Gegenqinlian decoction. Rat single pass intestinal perfusion model with jugular vein cannulated was used. Samples were obtained continuously from the outlet perfusate and the mesenteric vein. The levels of puerarin, daidzin, liquilitin, baicalin, wogonoside, jatrorrhizine, berberine and palmatine were determined by LC-MS/MS and their permeability coefficients were calculated. The results showed that Glycyrrhiza could promote the absorption of the active ingredients in Pueraria which is the monarch herb; meanwhile, Pueraria also played a role in promoting the absorption of liquilitin. Based on the Gegenqinlian decoction and the different combinations experiments, the results concerning the absorption of baicalin and wogonoside were as follows. For baicalin, Pueraria and Glycyrrhiza could promote its absorption and the effect of Pueraria was more obvious. For wogonoside, Pueraria could also promote its absorption, while Glycyrrhiza played a opposite role. Pueraria and Glycyrrhiza both played a part in promoting the absorption of jateorhizine, berberine and palmatine, the effective compounds in Coptis.
6.The role of peroxisome proliferator-activated receptor-γ/nuclear factor-κB transduction pathway on ;coagulation disorders induced by sepsis
Yizhu SUN ; Jing WANG ; Luxin YU ; Lin DAI
Chinese Critical Care Medicine 2015;(6):520-524
Objective To determine the role of activated status of peroxisome proliferator-activated receptorγ/nuclear factor-κB ( PPAR-γ/NF-κB ) in coagulation disorders induced by sepsis. Methods Forty male Sprague-Dawley ( SD ) rats were randomly divided into four groups, n = 10 in each group: control group, lipopolysaccharide ( LPS ) challenged group, rosiglitazone ( ROSI, selective agonist of PPAR-γ) pretreatment group, and GW9662 ( PPAR-γ antagonist ) pretreatment group. The sepsis model was reproduced by injection of 6 mg/kg LPS via sublingual vein, and the rats in control group were injected with 2 mL/kg normal saline. The rats in ROSI pretreatment group were given 0.3 mg/kg ROSI by sublingual venous injection followed by injection of LPS 30 minutes later;and in GW9662 pretreatment group rats were given 0.3 mg/kg GW9662 by sublingual venous injection followed by 0.3 mg/kg ROSI 15 minutes later, followed by injection of LPS 30 minutes later. Blood was collected at 4 hours after LPS administration, and the expressions of PPAR-γ and NF-κBp65 in peripheral blood mononuclear cell ( PBMC ) were determined with immunocytocheminal technique and graph analysis. Plasma prothrombin time ( PT ), activated partial thromboplastin time ( APTT ), fibrinogen ( FIB ), and D-dimer were determined simultaneously. Results① PPAR-γ/NF-κB pathway: the expressions of PPAR-γ and NF-κBp65 were lowered in control group, and they were expressed in cytoplasm. In LPS challenged group the expression of PPAR-γ ( gray value ) was slightly increased but with no significant difference as compared with control group ( 111.01±4.06 vs. 98.46±5.99, P >0.05 ). In ROSI pretreatment group the expression of PPAR-γ( gray value ) was significantly higher than that in LPS challenged group ( 214.38±5.79 vs. 111.01±4.06, P<0.01 ), with dislocation into nuclei. In GW9662 pretreatment group the expression of PPAR-γ ( gray value ) was lowered but without significant difference compared with that of control group ( 44.21±2.64 vs. 98.46±5.99, P>0.05 ). In LPS challenged group the expression of NF-κBp65 ( gray value ) was significantly higher than that in control group ( 249.48±6.86 vs. 105.81±10.19, P < 0.01 ), and it was translocated into the nuclei. In ROSI pretreatment group the expression of NF-κBp65 ( gray value ) was significantly lower than that in LPS challenged group ( 102.47±8.05 vs. 249.48±6.86, P < 0.01 ), and it lied in cytoplasm. In GW9662 pretreatment group the expression of NF-κBp65 ( gray value ) showed no significant difference as compared with that of LPS challenged group ( 214.84±7.91 vs. 249.48±6.86, P>0.05 ).②Coagulation:compared with control group, PT and APTT were significantly prolonged, FIB was significantly decreased, and D-dimer was significantly increased in LPS challenged group [ PT ( s ):18.32±2.03 vs. 12.22±1.38, APTT ( s ):40.05±2.72 vs. 26.64±2.73, FIB ( g/L ): 1.65±0.51 vs. 3.60±0.37, D-dimer ( mg/L ): 2.58±0.73 vs. 0.37±0.06, all P < 0.01 ]. Compared with LPS challenged group, APTT and PT were significantly shortened, FIB was significantly increased, and D-dimer was significantly lowered in ROSI pretreatment group [ PT ( s ):13.93±1.67 vs. 18.32±2.03, APTT ( s ):30.29±0.86 vs. 40.05±2.72, FIB ( g/L ):3.18±0.69 vs 1.65±0.51, D-dimer ( mg/L ):0.40±0.12 vs. 2.58±0.73, all P<0.01 ]. All parameters in GW9662 pretreatment group showed no significant difference as compared with those of LPS challenged group. Conclusions PPAR-γagonist ROSI may ameliorate coagulation disorders in septic rats. PPAR-γ/NF-κB transduction pathway plays an important role in septic coagulopathy.
7.Influence on Angiogenesis Factor and Expression of Its Receptor Protein of Estrogen-induced Uterine Fibroids Rat Model with Yi-Qi Xiao-Zheng Method
Yizhu LU ; Zhaohuan HUANG ; Xiwei ZHANG ; Zhuomin SONG ; Na WANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2013;(9):2047-2051
This study was aimed to observe the influence on angiogenesis factor and expression of its receptor protein on estrogen-induced uterine fibroids rat models with Y i-Qi Xiao-Zheng (YQXZ) method, in order to explore the mechanism of this method in the inhibition of angiogenesis in the treatment of uterine fibroids. Castration and estro-gen-induced method were used in the establishment of guinea pig uterine fibroids rat model. And then, different doses of Chinese medicine of YQXZ method were given. The immunohistochemical method was used in the detection of microvessel density (MVD) and vascular endothelial growth factor (VEGF) protein expression of the uterine tissues. The RT-PCR method was used to detect the expression of VEGFR1 mRNA and VEGFR2 mRNA. Then, statistical analysis was given on indexes mentioned above. The results showed that compared with the normal control group, ex-pression of MVD, VEGF and VEGFR of uterine muscle tissues in the model group was significantly higher (P <0.01). Compared with the model group, Chinese medicine group of different doses showed different reducing. Among them, the high-dose group was the most obvious one. It showed that the high-dose Chinese medicine of YQXZ group was able to significantly inhibit the expression of MVD, VEGF and theirs receptors. It was concluded that YQXZ method can antagonize proliferation of the leiomyoma cell by inhibiting angiogenesis. Therefore, it may be one of the mechanisms of this method in the treatment of uterine fibroids.
8.Analysis and comparison of intestinal absorption of components of Gegenqinlian decoction in different combinations based on pharmacokinetic parameters.
Yizhu ZHANG ; Rui AN ; Jin YUAN ; Yue WANG ; Qingqing GU ; Xinhong WANG
Acta Pharmaceutica Sinica 2013;48(10):1611-7
To analyse and compare the characteristics of the intestinal absorption of puerarin, baicalin, berberine and liquiritin in different combinations of Gegenqinlian decoction based on pharmacokinetic parameters, a sensitive liquid chromatography-tandem mass spectrometric (LC-MS/MS) method was applied for the quantification of four components in rat's plasma. And pharmacokinetic parameters were determined from the plasma concentration-time data with the DAS software package. The influence of different combinations on pharmacokinetics of four components was studied to analyse and compare the absorption difference of four components, together with the results of the in vitro everted gut model and the rat single pass intestinal perfusion model. The results showed that compared with other combinations, the AUC values of puerarin, baicalin and berberine were increased significantly in Gegenqinlian decoction group, while the AUC value of liquiritin was reduced. Moreover, the absorption of four components was increased significantly supported by the results from the in vitro everted gut model and the rat single pass intestinal perfusion model, which indicated that the Gegenqinlian decoction may promote the absorption of four components and accelerate the metabolism of liquiritin by the cytochrome P450.
9.Clinical epidemiology survey of the traditional Chinese medicine etiology and syndrome differentiation of coronary artery disease: study protocol of a multicenter trial.
Yingfei BI ; Jingyuan MAO ; Xianliang WANG ; Yazhu HOU ; Yizhu LU ; Boli ZHANG
Journal of Integrative Medicine 2012;10(6):619-27
BACKGROUD: Coronary artery disease (CAD), a common disease with high incidence and mortality rate, has seriously threatened the health and life of the public. Traditional Chinese medicine (TCM) has an important role in the prevention and treatment of this disease. Through clinical epidemiological survey, a deeper understanding of TCM etiology and syndrome characteristics in CAD would further improve clinical efficacy in the treatment of this disease.
10.Application of multi-media combined with case teaching method in pediatric dermatology teaching
Xiaoyan LUO ; Tingyu LI ; Qi TAN ; Yongmei LI ; Yizhu XIAO ; Hua WANG
Chinese Journal of Medical Education Research 2012;11(4):388-390
Applying multi-media combined with case teaching method to optimize pediatric dermatology teaching and clinical practice.The data of typical cases were collected by multi-media method,which can visually describe the characteristics of the cases and help students master the knowledge of pediatric dermatology by personal involvement.It can also cultivate students′ ability to analyze and solve problems as well as alleviate the conflicts between the clinical practice and lack of teaching case resources under the intense doctor-patient relationship.In conclusion,it is a teaching reform which deserves extending and applying.