1.Determination of schizandrol A in Mian'er'an Dripping Pills by HPLC
Chinese Traditional Patent Medicine 1992;0(10):-
AIM: To establish a method for determination of schizandrol A in Mian'er'an Dripping Pills (Semen Ziziphi Spinosae, Fructus Schisandrae, etc.). METHODS: HPLC was used with hypersil C 18 column (250mm?4.6mm; 5?m), methanol water (65∶35) as a mobile phase and detection wavelength at 254nm. The flow rate was 1.0mL?min -1 and at room temperature. RESULTS: The calibration curve was linear (r= 0.9999). The average recovery was 100.2% and RSD was 2.9%, respectively. CONCLUSION: The method is simple, quick and specific, and provides a quality control for the dripping pills.
2.The role of comparative medicine in all-round development of hospital
Yurong WANG ; Baoling YANG ; Shifeng YUN
Journal of Medical Postgraduates 2003;0(06):-
Comparative medicine is a synthetical subject,to provide protection and improve healthy medicare of human being by studying all kinds of human diseases using laboratory animals.Comparative medicine is widely involved in training medical talents,elucidating disease mechanism,improving medicare level and benefiting human healthy services.Therefore,comparative medicine research is an important foundation of medicine development,and indispensable supporting condition and organic compartment in all-round development of "medication,education and research" in modern comprehensive hospital.
3.Exploration and practice on the model curricula development of clinical immunology examination
Haixia LI ; Yurong QIU ; Jia YANG
Chinese Journal of Medical Education Research 2002;0(01):-
The construction of the model curricula is the important branch of teaching quality engineering. The key to the development of the model curricula lies in the reform of the teaching model. As required to the national standards of the model curricula and to the purpose of innovative educational philosophy,with the years of continuous exploration and practice,the clinical immunology examination curriculum has kept developing from the teaching staff,teaching condition,content of course,teaching method and means etc.,which has brought about satisfactory teaching effects. Thus it is forming the model curricula with special features.
4.Experimental Study on Auricle Microcirculation of Mice Function of Extract Form Earthworm
Wenqing YANG ; Yurong LI ; Dongqing REN
Journal of Zhejiang Chinese Medical University 2006;0(03):-
ObjectiveTo investigate the protection of extract form earthworm a traditional Chinese medicine in auricle microcirculation disturbance in mice. MethodThe microcirculation disturbance in mice was brought by rapid injection of high molecule dextran. Observe the microvascular diameter,the blood flow speed,the blood fluid state and crossing net patency quantity of micrangium in mice before injection and after injection 10min,20min,30min with WX-9 microcirculation microscope and analytical system. ResultHigh and low dose of extract form earthworm could expend the diameter of the vein and artery of micrangium, quicken the blood flow speed,improve the blood fluid state,increase micrangium crossing net patefaction numbers. To compare with the control group, threr’s significant difference (P
5.Effects of lappaconitine on the toxicity and analgesic activity of 3-acetylaconitine in their combination
Peide WANG ; Xuemin MA ; Yurong YANG
Chinese Pharmacological Bulletin 1986;0(05):-
Lappaconitine (LA) 0. 5 mg? kg-1had significant antagonistic action on the ar-rythmia induced by 3-acetylaconitine ( AA ) 0.07 mg?kg-1in rat. When LA and AA were used in combination (7:1) in mice, the analgesic activity of AA was not influenced marked-ly by LA but the LD50 of AA was increased by 50% ,therefore the therapeutic index of AA was increased and the margin of safety was widened.
6.The questionaire of postoperative pain in the patients after maxillofacial surgery
Guoliang ZHANG ; Yurong YANG ; Bin LU
Journal of Practical Stomatology 2000;0(05):-
Objective:To investigate the pain in patients during the early stages of recovery from maxillofacial surgery under general anaesthesia.Methods: One hundred patients as participants to respone the questionaire of postoperative pain 24 hours after operation. The data of pain intensity,analgesia requirement and the reason for operation of the patients were collected and analyzed. Results: Among the 100 cases, 92 with moderate or slight postoperative pain, 8 with severe pain. It is significant more severe pain (14.3%)in the group of bone fracture than that (less than 8.7%) in other groups. Conclusion: Most patients 24 h after maxillofacial surgery are with moderate and slight pain. The pain intensity relates with type of maxillofacial surgery.
7.Virulence of VEG strain Toxoplasma gondii oocysts against Kunming mice
Yaoyao LU ; Yongjie FENG ; Hui DONG ; Yurong YANG
Chinese Journal of Zoonoses 2017;33(7):624-627,636
To explore the pathogenicity of VEG strain Toxoplasma gondii oocysts on China Kunming mice,T.gondii oocysts of < 1 and 102-108 were chosen to feed the mice orally.And the modified agglutination test (MAT),H&E and IHC were used to check the infection of mice.The infection rate,the survival rate of mice,and number of cysts in brain were analyzed.Results showed that 100% of the mice fed with ≥102 oocysts were infected,the minimum lethal dose was 102 oocysts and the 100% lethal dose was 108 oocysts.The time of death in acute infection was 7 DPI to 14 DPI.T.gondii cysts formation rate was 32.14% (9/28),and the number of cysts was 9 to 857 per mouse.The survival rate of infected mice was 67.44% (29/43),and the longest survival time was more than 390 DPI.Accordingly,the virulence of T.gondii VEG strain is medium,and has a higher cysts formation rate.
8.Inhibiting effects of gambogenic acid in combination withmiR-218 on cervival cancer HeLa cells and its mechanisms
Yurong SHI ; Jian LIU ; Sulian CHEN ; Ying YANG
Chinese Pharmacological Bulletin 2017;33(10):1405-1409
Aim To study the inhibitory effects of gambogenic acid in combination with miR-218 on cervical cancer HeLa cells and its mechanisms.Methods Eukaryotic expression vector of miR-218(pmi8-218) was transfected into HeLa cells.Transcript levels of miR-218 were quantified by real-time quantitative PCR.HeLa cells were incubated with different concentrations of gambogenic acid alone or in combination with pmiR-218.The cell growth inhibiting ratio of HeLa cells was assessed by MTT assay.Cell apoptosis was measured by fluorescence activated cell sorting.The expression levels of Bcl-2, Bax and E-cadherin were measured by Western blot and qRT-PCR.Results Levels of miR-218 transcript significantly increased in pmiR-218 transfected HeLa cells.Overexpression of miR-218 may enhance the sensitivity of HeLa cells to gambogenic acid.Over expression of miR-218 could enhance the effect of gambogenic acid on inhibition cell proliferation, promoting apoptosis of HeLa cells.pmiR-218 could enhance the regulation of Bax expression and decrease the expression of Bcl-2 in HeLa cells.Conclusions Over expression of miR-218 may enhance the sensitivity of HeLa cells to gambogenic acid;miR-218 can enhance the effect of gambogenic acid on inhibition cell proliferation and promote the apoptosis of HeLa cells, and the mechanism may be related to down-regulation of Bcl-2/Bax expression.
9.86 strains of Kocuria bacteria identification and antimicrobial susceptibility test
Rui YANG ; Yurong GUO ; Xiaohong WEI ; Yujie KONG ; Lilin ZHU
International Journal of Laboratory Medicine 2016;37(9):1214-1215,1218
Objective To provide clinical experience in treatment of cook′s fungus infection of evidence‐based medical evidence , separation of medical environment of cook′s bacteria identification and antimicrobial susceptibility test .Methods Collected in the hospital infection of hygiene monitoring ,collection and medical staff hands ,skin and mucous membrane ,air and object surface sam‐ples from 86 strains of cook ,application ATB Expression semi‐automatic bacteria identification of susceptibility analyzer supporting article try ID32 Staph identification and drug susceptibility test Staph 5 ,strain identification and drug sensitive test .Results 86 strains bacteria identification cook 62 strains bacteria ,mutation detection rose cook bacteria strains of 16 ,cook eight strains of bac‐teria .Cook bacterium of norfloxacin(16 .3% ) ,and with nitrofurantoin low because of the sensitive rate(20 .9% ) ,of erythromycin (69 .3% ) and gentamycin(67 .4% ) ,the sensitive rate at nearly 70 .0% ,sensitivity to penicillin and other 12 kinds of antimicrobial a‐gents more than 80 .0% ,even 100 .0% .Conclusion Cook for most still sensitive ,clinicians and microorganism inspection personnel should strengthen the cook .
10.RP-HPLC method for the simultaneous determination of daidzein,genistein and formonetin in Solanum Lyratum Thunb
Yurong JIA ; Wenmeng ZHANG ; Ting ZHAO ; Wenwen YANG ; Lixin SUN
Journal of Pharmaceutical Analysis 2010;22(3):156-159
A rapid method for the simultaneous determination of daidzein, genistein and formonetin in solanum Lyratum Thunb by high performance liquid chromatography (HPLC) was developed. Separation was achieved on a Diamonsil C18 column (250 mm×4.6 mm, 5 μm) with isocratic elution, using a mobile phase of methanol-tetrahydrofuran-water (44∶3∶53, v/v). The wavelength was set at 260 nm and column was maintained at 35 ℃. The linear ranges of daidzein, genistein and formonetin were 1.0-40.0, 0.1-4.0 and 0.1-4.0 μg/mL, respectively. The average recoveries were between 98.4% and 101.3%. This method could be used for the quality control of Solanum lyratum Thunb due to its simplification, reliability, rapidity and excellent precision.