1.Study on the Cardiac Damage in the Patients with Polymyositis/Dermatomyositis
Acta Medicinae Universitatis Scientiae et Technologiae Huazhong 2001;30(3):235-236
To investigate the significance of cardiac damage in the patients with polymyositis (PM)/dermatomyositis (DM),45 cases of PM/DM in our hospital from 1992 to 1998 were retrospectively analyzed in the aspects of the clinical data,muscle zymogram,X-ray plain films,electrocardiograph,ultrasonic cardiogram. It was found that cardiac damage (51.1 %) occurred in 23 out of 45 cases of PM/DM. Pericardium,cardiac muscle,endocardium and coronary artery were involved. Clinical manifestations were various. Among the cases of cardiac damage,3 died of heart failure. It was indicated that cardiac damage is the most common complication and also one of the common death causes of PM/DM.
2.New Progress in Modern Research on Chinese Herbal Medicines Published in Chinese Traditional and Herbal Drugs in 2010: Annual Highlights and Comments
Chunnian HE ; Yanze LIU ; Peigen XIAO
Chinese Herbal Medicines 2011;(4):253-261
As a series of and continuous publication,the papers published on Chinese Traditional and Herbal Drugs in 2010 were selectively and briefly highlighted to reflect the new progress on modern research of Chinese herbal medicines.Within 617 articles,chemical constituents (127),pharmaceutics and technology (149),pharmacological studies and clinical observation,and medicinal materials are still major categories.Some comments have also been personally provided.
3.Establishment of stable high expression cell line with green fluorescent protein and resistance genes.
Shengtao, ZHANG ; Wenli, LIU ; Peigen, HE ; Feili, GONG ; Dongliang, YANG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2006;26(3):298-300
In order to establish stable high expression cell lines, the eukaryotic expression vector pIRES2EGFP and recombinant plasmid pIRES2EGFP-TIM-3 were transfected into mammalian cells CHO by Lipofectamine. The transfected cells were cultivated under selective growth medium including G418 and green fluorescent protein (GFP) positive cells were sorted by FACS. Simultaneously, growing transfectants were selected only by G418 in the medium. The GFP expression in stably transfected cells was detected by FACS. Under selective growth conditions with G418, the percentage of GFP positive cells was reduced rapidly and GFP induction was low. In contrast, the percentages of GFP positive cells were increased gradually after FACS. By 3 rounds of GFP selection, the stable high expression cell lines were established. Furthermore, using FACS analysis GFP and the target protein TIM-3 co-expression in the stable transfectants cultured in nonselective medium was detected. Theses results demonstrated that the stably transfected cell lines that express high titer of recombinant protein can be simply and fleetly obtained by using GFP and selective growth medium.
4.Determination of hesperidine inErchen mixture by HPLC
Jing LIU ; Peigen HE ; Zhihao LI ; Peng LI
International Journal of Traditional Chinese Medicine 2014;(10):909-911
Objective To establish a method for the determination of hesperidine inErchen mixture. Methods HPLC method was used with Fortis C18(250 mm×4.6 mm,5μm)column and the mobile phase consisted of acetonitrile-acetic acid-water(22∶4∶74). The flow rate was 1.0 ml/min,the column temperature was 30℃, and the UV detector was set at 283 nm.Results The linear ranges of hesperidine was 2.86-57.20μg(r=0.999 8). The average recovery of Aloin was 99.4%.Conclusion The method is rapid, reliable, simple, repeatable and with high specificity. It can be an important supplement for Erchen mixture elevated standard.
5.Pharmaphylogeny vs. pharmacophylogenomics: molecular phylogeny, evolution and drug discovery.
Dacheng HAO ; Peigen XIAO ; Ming LIU ; Yong PENG ; Chunnian HE
Acta Pharmaceutica Sinica 2014;49(10):1387-94
With the surge of high-throughput sequencing technology, it is becoming popular to perform the phylogenetic study based on genomic data. A bundle of new terms is emerging, such as phylogenomics, pharmacophylogenomics and phylotranscriptomics, which are somewhat overlapping with pharmaphylogeny. Phylogenomics is the crossing of evolutionary biology and genomics, in which genome data are utilized for evolutionary reconstructions. Pharmaphylogeny, advocated by Prof. Pei-gen Xiao since 1980s, focuses on the phylogenetic relationship of medicinal plants and is thus nurtured by molecular phylogeny, chemotaxonomy and bioactivity studies. Phylogenomics can be integrated into the flow chart of drug discovery and development, and extend the field of pharmaphylogeny at the omic level, thus the concept of pharmacophylogenomics could be redefined. This review gives a brief analysis of the association and the distinguished feature of the pharmaphylogeny related terms, in the context of plant-based drug discovery and sustainable utilization of pharmaceutical resource.
6.Study of the change of large arterial compliance and carotid artery intima-media thickness in patients with metabolic syndrome
Dongfeng LI ; Xinwen MIN ; Handong YANG ; Tianjun TANG ; Libing ZHAO ; Peigen HE
Chinese Journal of Postgraduates of Medicine 2006;0(21):-
Objective To investigate the changes of compliance in large arteries and carotid artery intima-media thickness(IMT)in patients with metabolic syndrome.Methods There were 64 patients with metabolic syndrome and 56 age-matched control subjects.Their carotid-femoral pulse wave velocities(C-FPWV)were measured by the Complior SP and their carotid artery IMT were detected by B-mode ultrasound.At the same time their height,weight,waist circumstance,hip girth,blood pressure,blood glucose,blood lipid,BMI and waist to hip ratio(WHR)were measured.Results Compared with the control,the patients with metabolic syndrome had higher C-FPWV(P
7.Immunophenotyping of Lymphocyte T and B in the Peripheral Blood of Systemic Lupus Erythematosus
Shaoxian HU ; Deding TAO ; Peigen HE
Journal of Huazhong University of Science and Technology (Medical Sciences) 2001;21(2):108-109
The immunophenotyping expression levels of lymphocyte in the peripheral blood from 21 patients with active systemic lupus erythematosus (SLE) were analyzed by using the immunofluorescence labeling-flow cytometry technique to investigate the immunophenotyping expression of lymphocytes T and B in the peripheral blood of active SLE patients and its clinical value. It was showed that, compared with normal controls, the expression of CD+3, CD+4 and the ratio of CD+4/CD+8 in the peripheral blood of these patients were decreased (P<0.01), while the expression of CD+8, CD+20 was significantly increased (P<0.01). It was suggested that both T and B cells in patients with active SLE involved in immunoregulation, were activated. The abnormal expression of lymphocyte immunophenotyping could influence the immune reaction in SLE patients, which might be one of the important pathogenesis factors in SLE.
8.Chemical constituents of Kadsura oblongifolia and evaluation of their toxicity.
Jin ZHANG ; Zhiming WANG ; Kechun LIU ; Qiuxia HE ; Yaodong QI ; Bengang ZHANG ; Haitao LIU ; Peigen XIAO
Acta Pharmaceutica Sinica 2014;49(9):1296-303
To study the chemical constituents of K. oblongifolia, silica gel column chromatography, MCI and Sephadex LH-20 were used to separate the 70% acetone extract of the stems of K. oblongifolia. The structures of the isolated compounds have been established on the basis of physicochemical and NMR spectroscopic evidence as well as ESI-MS in some cases. Twenty compounds were obtained and identified as heteroclitalignan A (1), kadsulignan F (2), kadoblongifolin C (3), schizanrin F (4), heteroclitalignan C (5), kadsurarin (6), kadsulignan O (7), eburicol (8), meso-dihydroguaiaretic acid (9), kadsufolin A (10), tiegusanin M (11), heteroclitin B (12), (7'S)-parabenzlactone (13), angeloylbinankadsurin B (14), propinquain H (15), quercetin (16), kadsulignan P (17), schizanrin G (18), micrandilactone C (19) and (-)-shikimic acid (20). Compouds 1, 5, 8, 11-15, 18 and 20 were isolated from this plant for the first time. Toxicity of compounds 1-10 were evaluated with zebrafish model to observe the effect on its embryonic development and heart function. The results showed that compounds 7, 9 and 10 caused edema of zebrafish embryo and decreased the heart rate of zebrafish, which exhibited interference effect on heart development of zebrafish.
9.Comparative Studies on Antioxidant Activities of Green Tea and Four Tree-type Non-Camellia Teas
Wanying WANG ; Wei XIAO ; Lijia XU ; Yong PENG ; Chunnian HE ; Peigen XIAO
World Science and Technology-Modernization of Traditional Chinese Medicine 2013;(7):1526-1531
This article was aimed to compare the antioxidant activities of Green tea and four tree-type non-Camellia teas. The antioxidant activities of the water extract of Green tea, Eagle tea, Large-leaved Kuding tea, Shiya tea and Qingqianliu tea were evaluated with four different in vitro assays including 1,1-diphenyl-2-picryl-hydrazyl (DPPH), ferric-reducing antioxidant power (FRAP), ferrous ion-chelating (FIC) and β-carotene-linoleate bleaching assay. In addition, the polyphenol contents of different teas were estimated by the Folin-Ciocalteu assay. The results showed that Shiya tea had strong antioxidant activity; its FIC and FRAP abilities are better compared with Green tea. The Eagle tea and Large-leaved Kuding tea have better antioxidant activity. The FRAP activity of Large-leaved Kuding tea was better than green tea. The DPPH of Eagle tea and Large-leaved Kuding tea were slightly lower than Green tea, but higher than the butylated hydroxytoluene (BHT). The antioxidant ability of Qingqianliu tea was the lowest. It was concluded that Shiya tea, Eagle tea, Large-leaved Kuding tea had relatively high development value which re-quires in-depth research and promotion.
10.Differential gene expression profiles in paclitaxel-induced cell cycle arrest and apoptosis in human breast cancer MCF-7 cells
Jin WANG ; Fangting HE ; Chihung TZANG ; Wangfan FONG ; Peigen XIAO ; Rui HAN ; Mengsu YANG
Acta Pharmaceutica Sinica 2005;40(12):1099-1104
Aim To elucidate the molecular mechanism of cell cycle arrest and apoptosis of MCF-7 cells induced by paclitaxel. Methods Flow cytometry was used to determine the cell cycle changes of MCF-7 cells upon paclitaxel treatment. Gene expression profiles of MCF-7 cells induced by paclitaxel were obtained by using cDNA microarrays containing 9 984 genes and expressed sequence tags (ESTs).Results Cell cycle analysis showed that 77.8% of cells arrested at G2/M phase and 1.3% of cells caused G2/M cell cycle arrest and apoptotic cell death in a concentration-dependent manner, which is associated with the regulation of selected genes related to microtubule assembly and cytoskeleton, cell cycle regulation, and DNA repair and apoptosis.