1.Effects of apolipoprotein A5 on the metabolism of serum lipid in type 2 diabetic patients
Jing CHANG ; Huan-Qin CHEN ; Lei QIU ; Yi-Wen YANG ;
Chinese Journal of Endocrinology and Metabolism 2001;0(05):-
Apolipoprotein A5(ApoA5)level and other indices were determined in patients with type 2 diabetes mellitus and healthy individuals.Compared to control group,ApoA5 level in the diabetic group was lower (P
2.Biological characteristics of anoikis-resistant cells from human osteosarcoma cell line hFOB1.19
Lei WEN ; Gang MENG ; Yi LI ; Qiaonan GUO
Journal of Third Military Medical University 2003;0(10):-
Objective To obtain anoikis-resistant cells from human osteosarcoma cell line hFOB1.19 and investigate its biological characteristics.Methods The osteosarcoma cell line we used was malignant transformed immortalized human fetal osteoblastic human cells(hFOB1.19)which was transformed in our lab(called transformant in this paper).We have used anti-adhesion cell culture method to mimic detachment of tumor cells from extracellular matrix(ECM)to obtain anoikis-resistant variants.Transmission electron microscopy and fluorescence microscopy were used to observe the morphological changes,flow cytometry was used to observe the apoptotic rate.The growth characteristic was observed by MTT.The migration characteristics was examined by transwell cell culture system.Results Typical apoptotic cells were seen after de-adhesion culture.The apoptotic rate of the transformant at 24,48 and 72 h showed a gradually increasing tendency.The apoptotic rate of anoikis-resistant cells was lower than that of the transformant at the same time point.Compared with the transformant,the anoikis-resistant variants had stronger ability in proliferation and in migration with statistical significance(P
4.Topical tacalcitol and MEL308 nm:a synergistic combination for the treatment of vitiligo
Lu-Yan TANG ; Wen-Wen FU ; Lei-Hong XIANG ; Yi JIN ; Zhi-Zhong ZHENG ;
Chinese Journal of Dermatology 1994;0(06):-
Objective To study the efficacy and safety of tacalcitol combined with monochromatic excimer light (MEL) 308 nm vs MEL 308 nm monotherapy in treating vitiligo.Methods Thirty-eight pa- tients with vitiligo were enrolled in the single-blind clinical trial,using plabebo-treated lesions in the same patient as controls.Contralateral or nearby lesions were randomly selected to be treated by either tacalcitol or placebo.All lesions were treated weekly with MEL 308 nm,for a total of 12 sessions.Patients were ex- amined at monthly intervals.The mean number of sessions and the cumulative dosage for initial and excel- lent repigrnentation were calculated.Results Thirty-five patients were evaluated.The mean?SEM cumu- lative dose and number of MEL exposures for initial repigmentation,respectively,were 4.27?3.59 J/cm~2 and 4.89?3.16 on tacalcitol-treated site,5.36?4.12 J/cm~2 and 5.69?3.29 on placebo-treated site,re- spectively (both P<0.05).For excellent repigrnentation,the cumulative dose and number of exposures were 7.72?5.64 J/cm~2 and 7.79?4.70 respectively on tacalcitol-treated site,and 8.18?4.87 J/cm~2 and 8.4?3.92 respectively on placebo-treated site (both P>0.05).Treatment with tacalcitol resulted in a sig- nificantly higher percentage (71.4% vs 54.3%) of repigmentation than that with placebo.Conclusions Our results show that MEL 308 nm is safe and effective for the treatment of vitiligo.Additionally,concur- rent topical tacalcitol potentiates the efficacy of MEL 308 nm in the treatment of vitiligo;this combination achieves more rapid pigmentation with a lower total MEL dosage.
5.Chemical constituents from Callicarpa nudiflora and their cytotoxic activities.
Yan-Chun MA ; Min ZHANG ; Wen-Tong XU ; Shi-Xiu FENG ; Ming LEI ; Bo YI
China Journal of Chinese Materia Medica 2014;39(16):3094-3101
The chemical consitituents from cytotoxic fraction of the Callicarpa nudiflora extract were isolated and purified by a combination of HP-20 macroporous resin, silica gel and Sephadex LH-20 column chromatographies. The structures were elucidated on the basis of the spectroscopic data and comparison of their spectroscopic data with reported data. The cytotoxicity was evaluated by the MTT assay. The 50% and 70% EtOH elutions of EtOH-extract showed significant cytotoxic activities, leading to the isolation of twelve compounds, which were identified as luteoloside(1), lutedin-4'-O-β-D-glucoside(2), 6-hydroxyluteolin-7-O-β-glucoside(3), lutedin-7-O-neohesperidoside(4), rhoifolin (5), luteolin-7, 4'-di-O-glucoside (6), forsythoside B (7), acteoside (8), alyssonoside (9), catalpol(10), nudifloside(11), and leonuride(12). Compounds 3-6, 10 and 12 were isolated from this genus for the first time, and compound 9 was isolated from this plant for the first time. The cytotoxicity assay demonstrated that flavonoids 1-6, in various concentrations, showed monolithic proliferation inhibitory activities against Hela, A549 and MCF-7 cell lines. Compounds 3, 5 and iridoid glycoside 11 possessed higher cytotoxicacivities. In short, flavonoids are the main components of cytotoxic extract from C. nudiflora, while phenylethanoid glycosides are the predominant ingredient but inactive to cancer cell lines. In addition, the minor iridoid glycoside expressed weak cytotoxic activity.
Callicarpa
;
chemistry
;
Cell Proliferation
;
drug effects
;
Cytotoxins
;
chemistry
;
isolation & purification
;
pharmacology
;
Drugs, Chinese Herbal
;
chemistry
;
isolation & purification
;
pharmacology
;
Humans
;
MCF-7 Cells
;
Molecular Structure
6.Study on chemical constituents in rhizome of Securidaca inappendiculata.
China Journal of Chinese Materia Medica 2008;33(7):780-782
OBJECTIVETo study the chemical constituents of Securidaca inappendiculata.
METHODColumn chromatographic techniques were applied to isolate constituents. A combination of MS and NMR spectroscopy was used to identify structures of constituents.
RESULTSeven compounds were isolated from the CHCl3 fraction and their structures were elucidated as 3, 4-dihydroxybezoic acid (1), 3-hydroxy-4-methoxylbenzoic acid (2), coniferaldehyde (3), 7-hydroxy-1, 2, 3, 8-tetrame thoxyxanthone (4), 1, 3, 8-trihydroxy-4-methoxyxanthone (5), 1, 3, 8-trihydroxy-2-methoxyxanth-one (6), 1, 3, 6-trihydroxy-2,7-dimethoxyxanthone (7).
CONCLUSIONCompounds 1-6 were isolated for the first time from the genus. The antioxidant activities of compounds 3-6 were assayed by the method of DPPH and compound 3 showed the IC50 value of 4.14 microg x mL(-1).
Antioxidants ; analysis ; pharmacology ; Drugs, Chinese Herbal ; chemistry ; Inhibitory Concentration 50 ; Magnetic Resonance Spectroscopy ; Rhizome ; chemistry ; Securidaca ; chemistry ; Spectrometry, Mass, Electrospray Ionization
7.Analysis of volatile constituents in two species of genus Magnolia by HS-SPME-GC-MS.
Lei SHI ; Jin-mei WANG ; Wen-yi KANG
China Journal of Chinese Materia Medica 2008;33(12):1429-1433
OBJECTIVETo analyze and compare the volatile constituents from M. biondii and M. liliflora.
METHODThe volatile constituents were extracted by head-space solid-phase microextraction, and analyzed by GC-MS.
RESULTSeventy two constituents were identified from M. biondii and M. liliflora, the content of the 25 constituents in both samples were similar, while the kinds of the constituents were obviously different.
CONCLUSIONThe volatile constituents were different between M. biondii and M. liliflora.
Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Gas Chromatography-Mass Spectrometry ; Magnolia ; chemistry ; Solid Phase Microextraction ; Volatilization
8.Application of Problem-based Learning Mode in Clinical Pharmacist Teacher Training
Lei WANG ; Jingwen WANG ; Wei ZHANG ; Yan ZHANG ; Yi QIAO ; Aidong WEN
China Pharmacist 2016;19(5):1003-1005
Objective:To evaluate the effects of problem-based learning(PBL)mode in the clinical pharmacist teacher training. Methods:The specific implementation content,process and organizational methods of PBL mode were introduced in the clinical pharmacist teacher training. Results:Through the scientific analysis on the student marks,the results showed that the theoretical test scores of the students were increased by average 30 points when compared with those before the training,and the average score of clinical practice was more than 85 points. The achievement fully reflected the significant effect of PBL teaching courses and the reasonable design of teaching plan. Conclusion:The first application of PBL mode in the clinical pharmacist teacher training was welcomed by all the students. The teaching method not only improves the purpose and funny of learning,but also allows students to explore a targeted manner and apply theoretical knowledge in order to improve the analysis and problem-solving skills,and obtain more systematic and solid theoretical knowledge to closely integrate with the clinical needs, therefore,PBL mode is worthy of promotion.
9.Increased ostial pulmonary vein diameter in congestive heart failure: a multi-slice computed tomography angiography evaluation
Lei GAO ; Xihai ZHAO ; Xin LIU ; Caiyi LU ; Ming YIN ; Yuxiao ZHANG ; Yi WEN ; Shiwen WANG
Journal of Geriatric Cardiology 2006;3(1):45-50
Background and Objectives The relationship between left atrial (LA) size and congestive heart failure (CHF) is well recognized;however, there is little information on the association of pulmonary vein (PV) diameter and CHF.The purpose of this study was to investigate the changes of PV and LA sizes in CHF patients by multislice computed tomography (MSCT) angiography using a new 64-slice scanner. Methods and Results We assessed diameters of PVs ostium and LA by 64-slice MSCT with three-dimensional reconstruction in 25 CHF patients and in 26 age- and sex-matched non-CHF controls. Compared with controls, CHF patients showed significant greater diameters of left superior pulmonary vein (LSPV) and right inferior pulmonary vein (RIPV) in both anteriorposterior(AP) and superior-inferior (SI) directions (P<0.01), significant dilation of right superior pulmonary vein (RSPV) in AP direction (P<0.05), as well as significant increase of LA transverse, AP, and SI diameters (P<0.01). Conclusion Significant dilation of PVs with simultaneous LA enlargement was demonstrated in CHF patients. This anatomic and geometric changes may participate in the perpetuation of AF.
10.Comparison of berberine between normal and febrile rats——pharmacokinetic study of antifebrile complex YL2000
Yunan ZHAO ; Dongming XING ; Yi DING ; Wen JIN ; Wei WANG ; Fan LEI ; Lijun DU ;
Chinese Pharmacological Bulletin 2003;0(10):-
AIM To explore pharmacokinetics of Berberine in YL2000 in normal and febrile rats. METHODS The levels of Berberine in plasma were measured through HPLC and secondary parameters were obtained by fitting the dose time data of Berberine making use of 3P87 programme. RESULTS In normal and febrile rats, the plasma concentration of Berberine was peaked at (3 4?0 3) h vs (0 3?2 1) h( P