2.Effect of Sirolimus-eluting stents implantation on platelet activation under dual anti-platelet therapy
Zhaoyang XUE ; Yuan CHEN ; Min LU
Chinese Journal of Interventional Cardiology 2003;0(06):-
Objective To investigate the changes in platele aciveation in terms of platelet fibrinogen receptor expression(PAC-1),P-selectin(CD62P),Thromboxane B2(TXB2),Endothlin(ET-1),Fibrinogen(FIB)in patients undergoing elective Sirolimus-eluting stents implantation and dual anti-platelet therapy.Methods Forty in-hospital patients with stable coronary heart disease(CHD)were enrolled in this study.Dural anti-platelet therapy with aspirin and clopidogrel were prescribed at least three days before operation to achieve sufficient inhibition of platelet activation in all patients.Peripheral artery blood samples were collected before the procedures,immediately and at 6 hours and 24 hours after the procedure,levels of PAC-1,CD62P,TXB2,ET-1 and FIB were measured.All patients were followed up for 6-12 months.Results Expression of PAC-1 and CD62P was increased significantly after stenting compared with pre-stenting and the peak appeared at 6 hours post-operation(PAC-1,P=0.001,CD62P,P=0.007,PAC1+CD62P,P=0.003).TXB2 was also increased and the peak appeared at 24 hours post operation(P=0.021).Plasma levels of ET-1 and FIB showed no difference before and after stenting.After CAG,expression of PAC-1 and CD62P,levels of TXB2,ET-1 and FIB had no significant differences compared with pre-CAG.No MACE happened in all patients.Conclusion The routine dual anti-platelet therapy cannot suppress platelet activation after elective coronary Sirolimus-eluting stents implantation.Plasma FIB and ET-1 levels were not affected by stents implantation.
3.Study on characteristics of non-glandular hairs of cultivated Lonicera japonica.
Shan-shan ZHANG ; Yuan YUAN ; Lu-qi HUANG ; Ping CHEN
China Journal of Chinese Materia Medica 2015;40(3):390-394
We collected 22 cultivated population of Lonicera japonica from 17 areas. The characteristics of non-glandular hairs were observed and measured by the scanning electron microscopy. The principal components analysis and correlation analysis were conduct based on length and density of L. japonica. The results showed a significant negative correlation between length and density of non-glandular hairs, and the characteristics of non-glandular was not corrrelated significantly with latitude. The correlation results indicated that the density was a key to separate "Damaohua" and "Jizhuahua". The contribution of climate and soil was important to the cultivated population. This reminded that the characteristics of non-glandular hairs were affected by environmental and genetic interaction.
Lonicera
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anatomy & histology
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growth & development
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ultrastructure
4.Numerical taxonomy of agronomic trait in cultivated Lonicera japonica.
Shan-Shan ZHANG ; Lu-Qi HUANG ; Yuan YUAN ; Ping CHEN
China Journal of Chinese Materia Medica 2014;39(8):1379-1385
Sixty-three morphological traits from 743 specimens of the 41 taxa within the cultivated Lonicera japonica were observed and measured, such as the height of plants, the length of leaf, the width of leaf, the length of anther, the alabastrum's number of one branch, the color of alabastrum and so on. A numerical taxonomy is presented by using the cluster analysis, principal components analysis (PCA) and factor analysis. Sixteen of 63 characters were screened by means of PCA and used for cluster analysis of 41 taxa with the method of Ward linkage and average euclidean distance. The cluster analysis showed that the 41 taxa could be divided into 5 groups when the Euclidean distance coefficient was 11.84. The factor analysis indicated that the shape of leaf, color of alabastrum, the pilosity and color of twiggery were of significance for the cultivated L. japonica classification. The results of this study will be a base for the core collection and breeding of L. japonica.
Breeding
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China
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Flowers
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chemistry
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classification
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genetics
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Lonicera
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chemistry
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classification
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genetics
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growth & development
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Plant Leaves
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chemistry
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classification
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genetics
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Quantitative Trait Loci
5.High resolution melting and its application in identity study of traditional Chinese medicine.
Kang CHEN ; Chao JIANG ; Yuan YUAN ; Lu-qi HUANG
Acta Pharmaceutica Sinica 2015;50(12):1581-1588
High resolution melting (HRM), based on melting curve analysis, requires not only saturating dyes that fluoresce in the presence of double-stranded DNA, but also higher resolution detection equipment. The melting curve is a novel method for sequence matching, genotyping and mutation scanning. The technology is simple, accurate, rapid, closed-tube, low-cost, and high-throughput, which make it gain more and more applications. This review article presents the basic principles, key factors and both the advantage and limitations of HRM. The potential application is discussed in the study of molecular identity of traditional Chinese medicine.
DNA Mutational Analysis
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methods
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Drugs, Chinese Herbal
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classification
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Genotyping Techniques
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methods
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Medicine, Chinese Traditional
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Nucleic Acid Denaturation
6.The curative effect of curing chronic obstructive pulmonary disease and Ⅱ type respiratory failure by noninvasive mechanical ventilation
Bingbin YUAN ; Gaoke CHEN ; Weipeng CHEN ; Rui LU
Chinese Journal of Primary Medicine and Pharmacy 2010;17(14):1929-1930
Objective To approach the curative effect of curing chronic obstructive pulmonary disease and Ⅱ type respiratory failure by noninvasive mechanical ventilation. Methods To retrospective analyze the clinical data of 60 cases chronic obstructive pulmonary disease and Ⅱ type respiratory failure,which was to be divided into detection group and control group by treatment way. Results The cough, expectoration,chest distress,rales of improving were better than control group, the respiratory frequency, heart rate, systolic arterial pressure were better than control group,the blood gas analysis result PaO2, PaCO2 of detection group were better than control group (P < 0. 05). The difference was statistical significance. Conclusion The curative effect of curing chronic obstructive pulmonary disease and Ⅱ type respiratory failure by noninvasive mechanical ventilation. It is worthy to be used in clinics.
7.Molecular mechanisms underlying the time-dependent autophagy and apoptosis induced by nutrient depletion in multiple myeloma: a pilot study.
Yuan, LIU ; Yan, CHEN ; Lu, WEN ; Guohui, CUI
Journal of Huazhong University of Science and Technology (Medical Sciences) 2012;32(1):1-8
This study explored the molecular mechanisms underlying the time-dependent autophagy and apoptosis induced by nutrient depletion in human multiple myeloma cell line RPMI8226 cells. RT-PCR and qRT-PCR were used to evaluate the transcriptional levels of Deptor, JNK1, JNK2, JNK3, Raf-1, p53, p21 and NFκB1 at 0, 6, 12, 18, 24 and 48 h after nutrient depletion in RPMI8226 cells. We found that transcriptional levels of Deptor were increased time-dependently at 0, 6, 12 and 18 h, and then decreased. Its alternation was consistent with autophagy. Transcriptional levels of Raf-1, JNK1, JNK2, p53 and p21 were increased time-dependently at 0, 6, 12, 18, 24 and 48 h accompanying with the increase of apoptosis. Transcriptional levels of NFκB1 at 6, 12, 18, 24 and 48 h were decreased as compared with 0 h. It was suggested that all the studied signaling molecules were involved in cellular response to nutrient depletion in RPMI8226 cells. Deptor contributed to autophagy in this process. Raf-1/JNK /p53/p21 pathway may be involved in apoptosis, and NFκB1 may play a possible role in inhibiting apoptosis. It remained to be studied whether Deptor was involved in both autophagy and apoptosis.
8.The nursing experience of Iris-fixed IOL implantation operation in phakic eyes
Zhongcui JIANG ; Hong YE ; Suihua CHEN ; Yuan XIA ; Yuwen LU
Journal of Medical Postgraduates 2003;0(03):-
Objective:Iris-fixed IOL implantation is a new and effective therapy for phakic eyes. Because the patients are young,they know very few about the operation,which mandated delicate pre-and postoperative nursing. This article discussed how to nurse the patients receiving iris-fixed IOL implantation operation in phakic eyes for super high myopia. Methods:Fifty eight eyes of 30 patients with super-high myopia received iris-fixed IOL (Verisyse IOL) implantation. Pre-and postoperative nursing course were summarized. Results:Focused education through preoperative visits,active cooperation in the operation and meticulous postoperative nursery were beneficial for the operation. Significant vision improvement was found after surgery. Conclusion:The planned,step by step,focused nursing course can improve the effects of operation and reduce the postoperative complication.
9.Expression of Bcl-2, Bcl-XL, Bax and Bak in Acute Leukemia Cells and Its Clinical Significance
Yusheng ZHU ; Yuan LU ; Bobin CHEN ; Guowei LIN ; Xinli ZHOU
Fudan University Journal of Medical Sciences 2001;28(2):113-115,118
PurposeTo explore the relationship between expression of apoptosis-modulating proteins and chemotherapeutic efficacy in acute leukemia. MethodsImmunocytochemical method was used to detect the expression of Bcl-2、Bcl-XL、Bax and Bak in 36 cases of acute leukemia including previously untreated/ drug-sensitive group and refractory/relapse group. ResultsThe average positive cell rates of Bcl-2 and Bcl-XL in refractory/relapse group were (41.68 ± 14.39) % and (35.96 ± 9.95 ) %, while the rates in previously untreated/drug-sensitive group were (15.64 ± 8.51 )% and (12.91 ± 8.63 )%. Statistical analysis showed the average positive cell rates of Bcl-2 and Bcl-XL in refractory/relapse group were higher than those in previously untreated/drug-sensitive group (P < 0.01 ). There was no significant difference in average positive cell rates of Bax and Bak between refractory/relapse group (25.28 ± 15.49) %, (15.53 ± 10.64) % and previously untreated/drug-sensitive group (21.55 ± 12.58)%, (13.23 ± 8.36)%. The Logistic regression of expression of Bd-2 、Bcl-XL、Bax and Bak to complete remission rate (CR) of 36 cases of acute leukemia showed that Bcl-XL was the most risk factor in reducing the CR.ConclusionsBcl-2 and Bcl-XL might play important roles in multi-drug resistance of acute leukemia and Bcl-XL was more important than Bcl-2.
10.Cholinergic receptor nicotinic acetyleholine receptor α7 agonist ameliorates trinitrobenzene sulfonic acid induced colitis in mice
Aiping BAI ; Yuan GUO ; Nonghua LU ; Jiang CHEN
Chinese Journal of Digestion 2008;28(8):535-539
Objective To study the therapeutic effect of cholinergie receptor,an nicotinic acetylcholine receptor(nAChR)α7 agonist,on trinitrobeazene sulfonic acid(TNBS)-induced colitis in mice.Methods BALB/C mice were randomly divided into control group,TNBS group,anabaseine(AN)as the agonist of nAChRα7(AN group),and chlorisondamine diiodide(CHD)as the antagonist of nAChRα7(CHD group).TNBS-induced colitis was produced at day 1,either 10 μg anabaseine or 1.5 μg chlorisondamine diiodide was administrated after the induction of colitis,and repeated on interval day till the mice were sacrificed at day 8.The myeloperoxidase(MPO)activity and level of tumor necrosis factors(TNF)-α in colonic tissue were examined by histological method and enzyme-linked immunosorbent assay (ELISA),respectively.Lamina propria mononuclear cells(LPMCs)were isolated,and NF-κB activation was further detected by Western blot.Results Compared with TNBS group,the tissue damage,MPO activity and concentration of TNF-α in mice treated with anabaseine were decreased[MPO activity:(7.6±2.1)U/mg vs(12.2±2.6)U/mg,TNF-α level:(396±98)pg/g vs(627±112)Pg/g],and NF-κB activation in LPMCs was inhibited.Whereas the MPO activity[(14.1±1.8) U/mg)]and concentration of TNF-α[(692±79)pg/g)]in mice treated with chlorisondamine diiodide were increased and NF-κB activation in LPMCs were amplified. Conclusion nAChRa7 agonist can inhibit colonic inflammatory response by down-regulating the consentration of TNF-α and inhibiting NF-κB activation.