1.The experimental study of inhibition of effective constituent of Giant Typhonium Rhizome on human bone marrow neuroblastoma cell (SH-SY5Y) proilferation
International Journal of Traditional Chinese Medicine 2012;34(9):801-803
ObjectiveTo investigate the anti tumor effect of Giant Typhonium Rhizome.Methods SH-SY5Y was treated for 24 or 48 h by Giant Typhonium Rhizome.Cell Counting Kit-8 (CCK-8) cell proliferation and cytotoxicity assays were applied to detect the inhibition of SH-SY5Y cells treated with aqueous extract of white monkshood root.AV/PI double staining flow cytometry was applied to explore the mechanism of growth inhibition.ResultsSH-SY5Y cells could be inhibited by root aqueous extract of Giant Typhonium Rhizome,the IC50 at 48 h (50% inhibitory concentration) was 0.862 mg/ml,while the IC50 at 24 h was 1.158 mg/ml.Western-blot results showed that root aqueous extract of Giant Typhonium Rhizome could induce apoptosis to inhibit tumor cells.ConclusionThe Rhizoma typhonii inhibit the growth of SH-SY5Y.
2.Study on Origin and Development of Stroke
Journal of Zhejiang Chinese Medical University 2017;41(4):282-284
[Objective]On the origin and development of stroke research and interpretation. [Methods]Reading from pre-Qin period to the Ming and Qing dynasties in the ancient literature related to stroke the literature, according to the treatment of disease, etiology, pathogenesis, therapeutic principle, prevention and curing of Chinese medical induction, summary, combining the origin of stroke, analysis of pathogenesis and therapeutic principle of stroke, and it is filtered and classified the ancient literature and research, summarizes the extraction.[Methods]Reading and analyzing ancient documents related to the stroke.[Results]The termstrokeand theoretical source inNei Jing, the treatment based on syndrome differentiation is initiated Treatise on Febrile and Miscellaneous Diseases.Jin and Yuan dynasties developed stroke theory;modern perfect stroke syndrome differentiation system. Previously, during the Tang and Song dynasties, it is mainly based on the theories of vital Qi deficiency,pathogenic wind into the argument, treatment of strengthening the body and removal of scattered wind. After the Jin Yuan dynasties, they are internal injury based, wind from the endogenous theories. the treatment is mainly focused on internal injuries. [Conclusion]That ancient physicians paid attention to the etiology and treatment of stroke more, keeping in good health and prevention mentioned less, so we should pay attention to the prevention and recovery.
3.Reactive oxygen species(ROS) involving in inhibiting proliferation of human bone marrow neuroblastoma cells (SH-SY5Y) by giant typhonium rhizome water extract
International Journal of Traditional Chinese Medicine 2012;34(10):898-900
ObjectiveTo investigate whether the reactive oxygen species involved in inhibiting proliferation of human bone marrow cells of neuroblastoma cells (SH-SY5Y)process by giant typhonium rhizome water extract,and to investigate the initial mechanism of anti-tumor effect of giant typhonium rhizome in vitro.MethodsAfter giant typhonium rhizome water extract processing of human bone marrow neuroblastoma cells (SH-SY5Y)at 24 h and 48 h,the cells were collected,and western blotting reaction methods such as flow cytometry was used to study the levels of ROS and SH-SY5Y apoptosis.ResultsThe levels of ROS elevated from before dosing (4.9±1.6)% to (39.7 ± 11.8)% in the process of giant typhonium rhizome water extract induced apoptosis in SH-SY5Y; after ROS inhibition was added,SH-SY5Y apoptosis level induced by giant typhonium rhizome water extract had decreased.ConclusionROS involved in the process of giant typhonium rhizome water extract inhibiting cell proliferation in SH-SY5Y.
4.Clinical Characteristics of 14 Patients with Cardiac Amyloidosis
Chinese Journal of Rehabilitation Theory and Practice 2008;14(2):171-172
Objective To analyze the clinical characteristics of patients with cardiac amyloidosis.Methods The clinical data of 14 patients with cardiac amyloidosis were retrospectively analysed.Results The patients with cardiac amyloidosis had characteristics of large atriums and hypertrophic ventricular walls in echocardiography.And they also had low limb lead voltage in ECG.The ratio of(SV5+RV1)and left ventricle crossing area of all patients were obviously lower than 1.5.Biopsy behaved staining of congo red.And most patients had renal,dermatic and gastrointestinal involvements.Conclusion The patients of cardiac dysfunction with the characteristics of restrictive cardiomyopathy in echocardiogram and feature of low limb lead voltage in ECG,have the possibility of cardiac amyloidosis and need to prove it through biopsy.(SV5+RV1)/CSA may be a promising method for screening cardiac amyloid.
5.Chemical constituents from polarity part in roots of Angelica dahurica var. formosana cv. Chuanbaizhi.
Gai-gai DENG ; Zhi-jia GUI ; Xiu-wei YANG
China Journal of Chinese Materia Medica 2015;40(19):3805-3810
The chemical constituents from polarity part in the roots of Angelica dahurica var. formosana cv. Chuanbaizhi were studied in this paper. The compounds were separated and purified by repeated column chromatographic methods on silica gel and HPLC, and the chemical structures of compounds were determined by spectral data analyses. Fourteen compounds were obtained and identified as tert-O-β-D-glucopyranosyl-(R)-byakangelicin (1), (2"S) -3"-O-β-D-glucopyranosyl-oxypeucedanin hydrate (2), marmesinin (3), sec-O-β-D-glucopyranosyl-byakangelicin (4), isofraxidin-7-O-β-D-glucopyranoside (5), benzyl-O-β-D-glucopyranoside (6), 8-O-β-D-glycopyranosylxanthotoxol (7), prenyl-O-β-D-glucopyranoside (8), scopolin (9), (2' R) -5'-hydroxymarmesin-5'-O-β-D-glucopyranoside (10), (2'S,3'R) -3'-hydroxymarmesinin (11), skimmin (12), benzyl-O-β-D-apiofuranosyl-(1"--> 6')-β-D-glucopyranoside (13), and decuroside IV (14). Among them, compounds 2, 5, 6, 8, and 10-13 were obtained from the roots of title plant for the first time.
Angelica
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chemistry
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Drugs, Chinese Herbal
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chemistry
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isolation & purification
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Mass Spectrometry
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Molecular Structure
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Plant Roots
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chemistry
6.RP research in the era of precision medicine:discovery to translation
Yang, JING ; Xiaowu, GAI ; Eric PIERCE
Chinese Journal of Experimental Ophthalmology 2016;34(1):5-10
Retinitis pigmentosa (RP) encompasses many different hereditary retinal degenerations that are caused by a vast array of different gene mutations and have highly variable disease presentations and severities.Work over the past 25 years has resulted in the identification of genes responsible for about 50% of the RP cases,and it's predicted that most of the remaining disease-causing genes will be identified by the year 2020 or most likelysooner.This marked acceleration is the result of dramatic improvements in DNA-sequencing technologies and the associated analysis.The advent of two recent innovations, induced pluripotent stem cells (iPSCs) and clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated nuclease-9 (Cas-9) mediated genome editing,are changing the landscape of RP research, with causative genes being identified at an accelerated rate withgreat potential to translate these discoveries into personalized therapeutic strategies.
7.Simulation design and research on forming principle of anthropometric ECG
Cuizhen BAI ; Liping GAI ; Gangye YANG
Chinese Medical Equipment Journal 2003;0(10):-
Objective To vividly display the forming principle of anthropometric ECG by using mannequin.Methods A mannequin was made using conductive paper with"heart" designed in left chest and its ECG was measured.Results The forming principles of ECG from mannequin and real people were identical.Mannequin had the same physical characteristics as real human body.Conclusion The change of ECG caused by pure physical factors can be studied by using the mannequin,which helps doctors properly analyze ECG and make accurate diagnosis.
8.Arteriographic evaluation of graft patency in patients with reccurrence of angina after CABG
Luyue GAI ; Tingshu YANG ; Yu WANG
Chinese Journal of Interventional Cardiology 1993;0(03):-
12 months in 31.3% (15/48). The graft lesions were found in 72.9% (35/48) of the patients, the worsened native lesions in 8.3% (4/48) and incomplete revascularization in 12.5% (6/48). Total occlusion was found in 33.3% (45/135) of the grafts and stenosis in 5.9% (8/135). LIMA total occlusion was 46.4% (13/28), stenosis was 8.6% (3/35) and competitive flow was 8.6% (3/35). Stenosis was found in 5.2% (5/97) of the SVG and total occlusion in 35.1% (34/97). Two of the five radial arteries were stenotic. Except for the chronic total occlusions, PCI treated the above problems with a high success rate. Conclusion Reoccurrence of angina is not uncommon after CABG. The causes are mainly due to the graft problem, and secondly due to worsened native lesion and incomplete revascularization. PCI can be used to treat the above problems except for the chronic total occlusions of the native vessels and graft.
9.Angiographic follow-up results of drug eluting stent for non-protected left main coronary artery disease
Luyue GAI ; Qinhua JIN ; Tingshu YANG
Chinese Journal of Interventional Cardiology 2003;0(05):-
Objective To evaluate the angiographic effectiveness of stenting for non-protected left main coronary leisions. Methods The follow-up angiograms of 18 patients who had received stent implantation for non-protected left main disease during 1997-2004 were assessed. Results (1) There were totally 9 patients implanted with two stents in distal left main bifurcation lesion. Among the 6 patients who had implanted two drug eluting stents using V technique, 4 of them had ostial restenosis of the branches and had TLR. Another 2 patients with bare metal stents implanted using T-stest technique also experienced restenosis and had TLR. (2) In the 9 patients with single stent implanted, 5 patients implanted the stents crossing-over the LCX and only 1 of them had restenosis. Among the 3 patients who had received left main body stenting, one patient had diffuse restenosis and performed TLR. Conclusion (1) Implantation of 2 stents in distal left main lesion showed a high restenosis rate. On the other hand, crossing over the LCX can be applied safely in left main bifurcation lesions and show a better prognosis.
10.Fate of side branch after stenting with cross-over technique in coronary bifurcation lesions——an IVUS and QCA comparison study
Li LI ; Luyue GAI ; Tingshu YANG
Chinese Journal of Interventional Cardiology 1993;0(03):-
Objective To analyze the effect on side branch with diameter ≥2.0 mm after stenting with cross-over technique in non-left main coronary bifurcation by using IVUS and QCA.Methods Comparative analysis was made on the IVUS and QCA results of the side branches in 35 non-left main bifurcation lesions which were intervened by cross-over technique.Results The diameter and area stenosis rates of the side branches examined by IVUS compared with QCA before intervention were 18.67%?16.29% vs 29.06%?23.16% and 31.17%?25.54% vs 42.22%?31.81% respectively.After cross-over interventional therapy,acute occlusion of the side branches detected by both IVUS and QCA was 2.86%.The rates of aggravated stenosis and newly developed stenosis in the side branches shown by IVUS and QCA were 14.29% vs 48.57%(P=0.012) and 11.43% vs 14.29%(P=0.294).Post-intervention morphology of the side branches detected by IVUS included plaque shift,vessel wall shrink,spasm and deformation.By using logistic analyzing,existence of soft plaque in the main branches was an independant factor affecting the fate of the side branches.Conclusion Comparing with IVUS results,QCA may over-estimate the degree of stenosis of the side branches after cross-over technique.The possible mechanism of side branch complications shown by IVUS included plaque shift,vessel wall shrink,spasm and deformation.Soft plaque in the main branch is an independant influencing factor of the result in the side branches.