1.Quality standard for Ruxinan Capsule
Chinese Traditional Patent Medicine 1992;0(05):-
AIM: To determine quantitatively active ingredients,icariine and osthole,and to identify Fructus Cnidium and Scorpio in Ruxinan Capsule ( Folium Epimedii,Fructus Cnidii,Scorpio). METHODS: Fructus Cnidium and Scorpio were identified by TLC and the contents of icariine and osthole were determined by HPLC. RESULTS: Fructus Cnidium and Scorpio were clearly separated in the TLC chromatogram. The results of HPLC analysis for icariine were: a linear range of 61. 7 ng-740. 4 ng,r = 0. 999 6,an average recovery of 99. 86% with a RSD of 0. 82% and the corresponding data for osthole were: a linear range of 57. 4 ng-688. 8 ng,r = 0. 999 8, an average recovery of 99. 55% with a RSD of 0. 71% . CONCLUSION: This method is simple and feasible and can be used as quality standards for Ruxinan Capsule.
2.Methodology of Sterility Test of Dexrazoxane for Injection
China Pharmacy 2007;0(34):-
OBJECTIVE:To establish the method for sterility test of dexrazoxane for injection. METHODS: The relative procedures were conducted in accordance with the membrane-filter procedure included in sterility test specified in Chinese Pharmacopoeia (2005 edition),with Staphylococcus aureus,Pseudomonas aeruginosa,Bacillus subtilis,Clostridium sporogenes,Candida albicans and Aspergillus niger as test organisms,which were flushed with sodium chloride-peptone buffer solution (150 mL,250 mL,and 350 mL,respectively,pH 7.0) to evaluate the impact of three flushing doses on the results of sterility test. RESULTS: At a flushing dose of 150 mL,there was no growth of bacteria except Bacillus subtilis at 24~72 h;however,at a flushing dose of 250 mL or 350 mL,all bacteria strains had a good growth. CONCLUSION: The established method for sterility test of dexrazoxane for injection is accurate and reliable.
3.Research progress of peripheral T-cell lymphoma: reports from the 57th American Society of Hematology annual meeting
Yongchun CHEN ; Lei FAN ; Wei XU ; Jianyong LI
Journal of Leukemia & Lymphoma 2016;25(1):23-25,32
Peripheral T-cell lymphoma (PTCL) accounting for 10 % to 15 % of non-Hodgkin lymphoma (NHL) is characterized highly heterogeneous and aggressive clinical course. PTCL patients are prone to suffer from chemotherapy refractory and disease progression. Reports on research progress of PTCL in the 57th American Society of Hematology annual meeting covered multiple respects of PTCL. In basic research, the novel partner genes further improve the pathogenesis mechanism of ALK+anaplastic large cell lymphoma (ALCL). For prognostic indicators, GATA-3 expression detected by immunochemical assay provide a novel tool to monitor PTCL prognosis. Belinostat-CHOP, brentuximab vedotin-CHP, romidepsin-ICE regimens and stem cell transplantation provide more options for patients with PTCL, and the novel drugs such as alisertib, darinaparsin and denileukin diftitox offer new hope for PTCL patients in preclinical trials.
4.Minor new constituents from Heteroplexis micocephala.
Xiaona FAN ; Sheng LIN ; Chenggen ZHU ; Yongchun YANG ; Jiangong SHI
Acta Pharmaceutica Sinica 2010;45(1):82-6
By using a combination of various chromatographic techniques including column chromatography over silica gel and Pharmadex LH-20 and reversed-phase HPLC, two minor new compounds, labda-12, 14-dien-6beta, 7alpha, 8beta, 17-tetraol (1), 2, 3-cis-6-acetyl-5-hydroxy-2-(hydroxymethylvinyl)-2, 3-dihydrobenzofuran-3-ol angelate (2), and a minor new natural product 6-methoxy-4-methyl-3, 4-dihydro-2H-naphthalen-1-one (3) have been isolated from an ethanolic extract of Heteroplexis micocephala. Their structures were elucidated with spectroscopic data analysis including 2D NMR experiments.
5.The effect of microRNA-27a on U251 glioma cells
Guojun LIU ; Jun ZHANG ; Yongchun FAN ; Qingsuo WANG ; Wei LI
Practical Oncology Journal 2016;30(4):346-350
Objective To discuss the effect of microRNA -27a on U251 glioma cells.Methods Over-expression or inhibition of miR -27a in U251 glioma cells were done by transient transfection of miR -27a mim-ics or AMO-27a in vitro.Cell viability was detected by MTT assay .Invasion ability of U251 was detected by tr-answell invasion assay.The level of miR-27a and PPARγwere detected by real -time PCR.Results Under in-hibition of miR-27a condition,the proliferation and invasiveness of U 251 glioma cells were decreased .The level of PPARγwas significantly increased ,whereas the level of miR-27 a was decreased .Overexpression of miR-27 a increased the proliferation and invasiveness of U 251 glioma cells and decreased the level of PPARγ.Conclusion Inhibition of miR-27a is benefit for inhibiting the proliferation and invasiveness of U 251 glioma cells.
6.Integrated traditional Chinese medicine and Western medicine treatment of gastrointestinal dysmotility of severe acute pancreatitis patients
Qingqing FENG ; Yongchun XU ; Chunan LI ; Jun XING ; Tuoying FAN
Chinese Journal of Pancreatology 2010;10(4):248-250
Objective To investigate the effects of rhubarb and mirabilite and compound danshen injection on gastrointestinal dysmotility of severe acute pancreatitis (SAP). Methods Forty-one SAP patients were randomly divided into two groups: Integration group (n=21) were treated with rhubarb and mirabilite and compound danshen injection. Control group (n=20) were treated with conventional therapy. Recovery of gastrointestinal motility of two groups was observed, and the complication rate and hospital stay was recorded.Results The recovery of gastrointestinal motility, first defecation and hospital stay in integration group was (3.1±0.8)d, (3.1±0.8)d, (21.5±2.8 )d, which were significantly shorter than those in control group [(5.2±1.4) d, (4.7±1.3 ) d, (32.1±3.60) d, P < 0. 05 or P < 0.01. Five patients in integration group developed complication, which was significantly lower than 8 patients in control group ( P < 0.01 )]. One patient died and one patient received operation in integration group, and one patient died in control group,without significant difference between the two groups (P > 0.05 ). Conclusions The combination of rhubarb and mirabilite and compound danshen injection in severe acute pancreatitis can promote the recovery of gastrointestinal motility.
7.Mathematical model of the hydrolization of PIP2 with the stimulation of EGF
Yongchun SU ; Qinkai DENG ; Shenqiu LUO ; Fan DENG ; Di LU ; Xiaochun BAI
Chinese Medical Equipment Journal 1989;0(02):-
To investigate dynamic characteristics of the hydrolization lipid phosphatidylinositol(4,5)-bisphosphate(PIP 2 )with the stimulation of epidermal growth factor(EGF),the mathematical model to simulate the metabolizability of PIP 2 is established based on Law of Mass Action and Law of the Quasi-steady-State Approximation.Differential equations of concentration relations between PIP 2 and EGF receptor are formulated,and the effect of the parameters on the changing trend of PIP 2 is analyzed.This mathematical model describes biology characteristics of metabolized PIP 2 and dependency relationships of concentration between key signal producuts.
8.The application effect of traditional monitoring and self-monitoring methods in oral anticoagulant patients with mechanical valve replacement patients: a meta-analysis
Yongchun ZHANG ; Yetao LI ; Yongfeng FAN ; Qian FANG ; Hongying FU ; Guihua XIE ; Kui HU
Chinese Journal of Surgery 2016;54(10):776-781
Objective To evaluate the effects of traditional monitoring and self-monitoring in patients who take the oral anticoagulation medicine after mechanical valve replacement surgical operations.Methods A great number of Chinese and English literatures about this subject were investigated in detail,and these literatures were selected from the Cochrane Central Register of Controlled Trials,EMBase,MEDLINE,Web of Knowledge,CNKI,CNKI,VIP,and WanFang Data.It should be noted that all of the literatures were published before October,2015.Based on the results of the literature investigation,several studies were selected as the candidates.Moreover,many aspects about these candidates such as the experimental designs,characteristics of the objects of the studies and the results of the studies were filtered and recorded by two researchers independently.Furthermore,RevMan 5.3 were employed to analyze the data of the candidates.Results Eight randomized controlled trials were studied,which included 1 262 cases in self-monitoring group and 1 198 cases in traditional monitoring group.The results of metaanalysis indicated that compared with the traditional monitoring group,lower incidence of thromboembolism (Z =3.50,P =0.000) and lower mortality (Z =4.64,P =0.000) were observed,and the bleeding difference (Z =0.07,P =0.940) had no significant statistical meaning.Moreover,compared with the traditional monitoring,the international normalized ratio (INR) of the patients who were controlled in the range of treatment of the self-monitoring increased from 6% to 20.9%,and the total number of the INR tests was increased by 2.1 to 4.98 times.Conclusions Self-monitoring could obviously reduce the possibilities of the thromboembolism and death of the patients who took the oral anticoagulation medicine after mechanical valve replacement surgical operations.Furthermore,self-monitoring could not only control the INR in the range of treatment but also increase the total number of the INR tests.In short,self-monitoring has practical value of clinical application.
9.The application effect of traditional monitoring and self-monitoring methods in oral anticoagulant patients with mechanical valve replacement patients: a meta-analysis
Yongchun ZHANG ; Yetao LI ; Yongfeng FAN ; Qian FANG ; Hongying FU ; Guihua XIE ; Kui HU
Chinese Journal of Surgery 2016;54(10):776-781
Objective To evaluate the effects of traditional monitoring and self-monitoring in patients who take the oral anticoagulation medicine after mechanical valve replacement surgical operations.Methods A great number of Chinese and English literatures about this subject were investigated in detail,and these literatures were selected from the Cochrane Central Register of Controlled Trials,EMBase,MEDLINE,Web of Knowledge,CNKI,CNKI,VIP,and WanFang Data.It should be noted that all of the literatures were published before October,2015.Based on the results of the literature investigation,several studies were selected as the candidates.Moreover,many aspects about these candidates such as the experimental designs,characteristics of the objects of the studies and the results of the studies were filtered and recorded by two researchers independently.Furthermore,RevMan 5.3 were employed to analyze the data of the candidates.Results Eight randomized controlled trials were studied,which included 1 262 cases in self-monitoring group and 1 198 cases in traditional monitoring group.The results of metaanalysis indicated that compared with the traditional monitoring group,lower incidence of thromboembolism (Z =3.50,P =0.000) and lower mortality (Z =4.64,P =0.000) were observed,and the bleeding difference (Z =0.07,P =0.940) had no significant statistical meaning.Moreover,compared with the traditional monitoring,the international normalized ratio (INR) of the patients who were controlled in the range of treatment of the self-monitoring increased from 6% to 20.9%,and the total number of the INR tests was increased by 2.1 to 4.98 times.Conclusions Self-monitoring could obviously reduce the possibilities of the thromboembolism and death of the patients who took the oral anticoagulation medicine after mechanical valve replacement surgical operations.Furthermore,self-monitoring could not only control the INR in the range of treatment but also increase the total number of the INR tests.In short,self-monitoring has practical value of clinical application.
10.CBCT imaging analysis of three-rooted mandibular molars in children
Ying TANG ; Fan PEI ; Xiuchun CHEN ; Yongchun GU
Journal of Practical Stomatology 2024;40(4):542-546
Objective:To investigate the occurrence rate and distribution pattern of three-rooted mandibular molars in children using CBCT.Methods:CBCT images of 206 children aged 4-11 years were retrospectively analyzed.The root numbers of the bilateral man-dibular first and second deciduous molars,and the permanent mandibular first molars were recorded.A chi-square test was used to de-tect the gender and side difference.Spearman correlation test was used to analyze the relation between the bilateral homologous teeth and the mandibular first and second deciduous molars on each side.Results:The occurrence rate of three-rooted mandibular first and second deciduous molars and mandibular permanent first molars was 10.9%(19/175),25.1%(46/183)and 28.4%(57/201)for individuals,respectively(x2=18.543,P<0.01),and 8.7%(32/366),19.0%(73/384)and 23.6%(95/402)for teeth(x2=30.692,P<0.01),re-spectively.Gender difference was not detected for each tooth type(all P>0.05),while side differences were detected in mandibular sec-ond deciduous molars and the frequency of three-rooted molar on the right and left side was 23.7%and 14.2%(P<0.05),respectively.The concurrence rate of bilateral three-rooted mandibular deciduous first and second molars and mandibular permanent first molars was 57.9%(11/19),47.8%(22/46)and 66.7%(38/57),respectively,and the rho was 0.710,0.597 and 0.745,respectively(all P<0.01);between the three-rooted deciduous first and second molars on the left side,rho=0.188(P<0.05)and on the right side,rho=0.304(P<0.01).Conclusion:The occurrence rate of three-rooted mandibular molars in children increases in the following sequence:first deciduous molars<second deciduous molars<first permanent molars.They frequently occur bilaterally and exhibit a moderate to high degree of correlation.However,the correlation was very weak between the mandibular deciduous first and second molars.