2.Differentiation Between Vaccine Strain and Field Isolates of Classical Swine Fever Virus Using Polymerase Chain Reaction and Restriction Test
Yun ZHAO ; Yu-Ming QIN ; Guang-Chuan ZHANG ; Qi-Zu ZHAO ; Yi-Bao NIN ;
Microbiology 1992;0(03):-
A nest RT-PCR/restriction test has been developed in order to distinguish the lapinised vaccine strain from field isolates of classical swine fever virus. The restriction enzyme cut sites mapping of the major coding sequence of E2 gene lapinised vaccine strain and ShiMen strain of classical swine fever virus have been compared. Ten and sixteen unique restriction markers have been found in the lapinised vaccine strain and ShiMen strain. The restriction enzyme cut sites mapping of the twenty six unique restriction marker in the major coding sequence of E2 gene of 17 classical swine fever field isolates have been analyzed. Only 3 sites (HgaI、Hin8I及Hsp92I) are present in the lapinised vaccine strain sequence. Two pans of nested primers and a criteria of analysis have been designed for HgaI restriction marker site. The tests have been conducted first on the lapinised vaccine strain and ShiMen strain of classical swine fever virus resulting in predicted restrection patterns. Finally, the tests have been applied to 5 field isolates of different gene group analyzed by phylogenetic study. The result showed that only HCLV strain gene can be cut to 2 fragment by Hgal , and ShiMen strain and 5 field isolates cant be cut At the same time the sensitivity and specificity of nest RT-PCR have been tested. The sensitivity is 0. 2MLD. The specific fragment of BDV and BVDV were not obtained by the nest RT-PCR. These results showed that the development of the nest RT-PCR/restriction tests is very important for the control and perish of classical swine fever in china.
3.Studies on the alkaloids from Salsola collina Pall.
Acta Pharmaceutica Sinica 2004;39(8):598-600
AIMTo study the chemical constituents of Salsola collina Pall..
METHODSCompounds were isolated by silica gel column chromatography. IR, MS, 1HNMR, 13CNMR, HMQC, HMBC, DEPT were used for the structural identification.
RESULTSTwo amide alkaloids were obtained. They were identified as N-transferuloyl-3-methyldopamine (I), (10bS)-1,2,3,5,6, 10b-hexahydropyrrolo [2,1-a]-8,9-dihydroxyisoquinoline-3-one (II).
CONCLUSIONCompound I was isolated from this genus for the first time. Compound II is a new compound named salsoline A.
Molecular Structure ; Plants, Medicinal ; chemistry ; Salsola ; chemistry ; Salsoline Alkaloids ; chemistry ; isolation & purification
4.Intravenous drip and topical application using tranexamic acid decrease hidden blood loss after total hip arthroplasty
Chenghuan ZHANG ; Yun LIU ; Jianning ZHAO ; Jia MENG ; Tao YUAN ; Nirong BAO
Chinese Journal of Tissue Engineering Research 2015;(44):7071-7076
BACKGROUND:Tranexamic acid has been more and more used in reducing bleeding after joint replacement, but its usage method and dosage remain controversial, and become a hot focus in recent years. OBJECTIVE: To investigate the efficacy and safety of intravenous drip combined with intra-articular injection of tranexamic acid on postoperative hidden blood loss in patients who received primary total hip arthroplasty. METHODS:Clinical data of 65 patients undergoing primary total hip arthroplasty were randomized to the test group and the control group. The patients in the test group received 0.5 g tranexamic acid through intravenous drip when the surgery starts and 0.5 g tranexamic acid inside hip joint through a drainage tube after capsule closure, and retaining for 6 hours. The patients in the control group intravenously received the same volume of physiological saline, and 50 mL physiological saline through a drainage tube after suture, and retaining for 6 hours. We compared with intraoperative blood loss, postoperative dominant blood loss and hidden blood loss, pain score, blood transfusion rate, deep vein thrombosis and day of hospitalization in both groups. RESULTS AND CONCLUSION:Hemoglobin and hematocrit were higher in the test group than in the control group after replacement (P < 0.05). The volumes of dominant blood loss and hidden blood loss were lower in the test group than in the control group after replacement (P < 0.05). Blood transfusion rate and day of hospitalization were less in the test group than in the control group (P < 0.05). No significant difference in intraoperative blood loss, pain score and incidence of deep vein thrombosis was detectable between the two groups (P > 0.05). These results indicate that the intravenous drip combined intra-articular injection of tranexamic acid in patients receiving total hip arthroplasty could reduce the amounts of postoperative dominant and hidden blood loss and blood transfusion rate, and did not increase the incidence of deep vein thrombosis.
5.RESEARCH ON THE TESTING OF PORCINE REPRODUCTIVE AND RESPIRATORY SYNDROME VIRUS BY NESTRT-PCR
Yun ZHAO ; Guang-Chuan ZHANG ; Yu-Ming QIN ; Yi-Bao NING ; Qin WANG ;
Microbiology 1992;0(06):-
Three primer were designed based on the consevered area of the genetic of the ATCC VR-2332 strain and LV strain. And the nest RT-PCR of testing porcine reproductive and respiratory syndrome virus were developed. The nest RT-PCR against ATCC VR-2332 strain, LV strain and B13 strain were done by this method.The DNA fragment were obtained specially from the three strains isolated from different region. The size were 430bp (430bp) , 410bp (413bp) and 410 bp (413bp) separately. But the DNA fragment were not obtained from HCV, PPV and PRV. Its sensitivity was 10-2 TCID50. It's sensitivity increased 10000 times than one step RT-PCR. It should make the method of testing porcine reproductive and respiratory syndrome virus more sensitive, fast and accurate.
6.Clinical study of electroacupuncture combined with exercise therapy in improving the balance function of patients with knee osteoarthritis
Kun XUE ; Ji WU ; Jie BAO ; Haiyin ZHAO ; Yun ZHAO ; Yusun LU ; Qiong XU ; Chunshui HUANG ; Xiehe KONG
Journal of Acupuncture and Tuina Science 2024;22(1):32-40
Objective:To observe the clinical effect of electroacupuncture(EA)combined with exercise therapy on balance function in patients with knee osteoarthritis(KOA). Methods:Seventy patients with KOA were randomly divided into a treatment group and a control group,with 35 cases in each group.The treatment group was treated with EA combined with exercise therapy.EA was applied to Dubi(ST35),Neixiyan(EX-LE4),Xuehai(SP10),Liangqiu(ST34),Yanglingquan(GB34),and Zusanli(ST 36).Exercise therapy(muscle strength training and knee mobility training)was applied after EA.The control group only received the same exercise therapy as the treatment group.The two groups were treated with the same course of treatment,3 times a week for 4 consecutive weeks,12 times in total,and followed up for 1 month.The Pro-Kin254P balance test system was used to measure the balance function parameters at 4 time points,including before treatment,after 1 session of treatment,after 12 sessions of treatment,and at 1-month follow-up after treatment.The visual analog scale(VAS)and the Western Ontario and McMaster Universities osteoarthritis index(WOMAC)scores were recorded. Results:The markedly effective rate and total effective rate in the treatment group were higher than those in the control group(P<0.01).The Romberg area,Romberg length,and VAS scores of the two groups decreased significantly after 1 session of treatment,12 sessions of treatment,and 1 month after treatment,and the differences between different time points in the same group were statistically significant(P<0.01).There were significant differences between the two groups at the same time point(P<0.05).The total WOMAC scores of the two groups after 1 session of treatment,12 sessions of treatment,and 1 month after treatment decreased significantly,and there were significant differences between different time points in the same group(P<0.05),but there was no significant difference between the two groups at the same time point(P>0.05). Conclusion:EA combined with exercise therapy or exercise therapy alone can enhance the balance function,relieve joint pain,and improve joint function in patients with KOA.EA combined with exercise therapy is superior to exercise therapy alone in improving balance function and pain,but the two treatment protocols have similar effects in improving joint function.
7.Neuroprotective effects of the effective components group of xiaoshuantongluo against oxygen-glucose deprivation in primary cultured rat cortical neurons.
Xin-Mei XIE ; Xiao-Bin PANG ; Yan ZHAO ; Bao-Quan WANG ; Ruo-Yun CHEN ; Guan-Hua DU
Acta Pharmaceutica Sinica 2014;49(8):1130-1135
This study is to investigate the effect of the effective components group of Xiaoshuantongluo (XECG) on neuronal injury induced by oxygen-glucose deprivation (OGD) in primary cortical cultures isolated from SD rat cortex at day 3 and the possible mechanism. Cells were divided into control group, OGD model group and XECG group (1, 3 and 10 mg x L(-1)). The cell viability was assessed with MTT assay and the LDH release rate was measured by enzyme label kit. The cell apoptosis was analyzed using Hoechst staining. RT-PCR was applied to detect the mRNA levels of JAK2 and STAT3. Western blotting was used to detect the expressions of Bcl-2, Bax, p-JAK2 and p-STAT3 proteins. Results showed that XECG resulted in an obvious resistance to oxygen-glucose deprivation-induced cell apoptosis and decrement of cell viability, decrease the cell LDH release rate. XECG could adjust the expression of Bcl-2 and Bax proteins and increase Bcl-2/Bax ratio, up-regulate the expression of p-JAK2 and p-STAT3. In conclusion, XECG could protect against the neuronal injury cells exposed to OGD, which may be relevant to the promotion of JAK2/STAT3 signaling pathway, and impact the expression of Bax and Bcl-2.
Animals
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Apoptosis
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Cell Survival
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Cells, Cultured
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Drugs, Chinese Herbal
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pharmacology
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Glucose
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Janus Kinase 2
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metabolism
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Neurons
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drug effects
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metabolism
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Neuroprotective Agents
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pharmacology
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Oxygen
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Proto-Oncogene Proteins c-bcl-2
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metabolism
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Rats
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STAT3 Transcription Factor
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metabolism
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Signal Transduction
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bcl-2-Associated X Protein
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metabolism
8.Role of erythrocyte on brain edema development after traumatic intracerebral hemorrhage in rats
Bao-Zhong SHI ; Yong-Gang ZHAO ; Dong-Hui LUO ; Jing-Fang LIU ; Li-Xin XU ; Yun-Sheng LIU
Chinese Journal of Trauma 2003;0(12):-
Objective To study the effects of erythrecyte on brain edema after traumatic intrace- rebral hemorrhage(TICH)and explore the mechanisms of erythrocyte in brain edema development follow- ing TICH.Methods Firstly,the brain injury model of SD rat was established by applying a free-fall- ing device,then whole blood(WB),lysed RBC(LRBC)or parked RBC(PRBC)were infused with ste- reotactic guidance into injured cortex to produce the model of TICH.All rats were killed at 1,3,and 5 days after injury.The brain water content was measured,immunohistochomistry(SABC)was applied to test HO-1 and TNF-?expressions.Results 1.In WB group,PRBC group and TBI group,the brain water content was the highest on the third day.The brain water content of LRBC group was markedly higher on the first day than on the third and fifth days.Comparison among the four groups showed the wa- ter content was the highest on the 1st day in LRBC group,and on the 3rd day in WB and PRBC groups; there was no significant difference among the four groups on 5th day.2.The positive expression of HO-1 and TNF-?coincided with the change of the water content in groups of WB,PRBC and LRBC.Conclu- sions In rat model of TICH,RBC plays an important role in delayed brain edema formation(3 days after injury),but has no influence at early stage(1 day after injury).The mechanisms of delayed brain edema involves RBC breakdown and inflammation reaction.
9.Study on incidence of phlebitis in patients with PICC through peripheral vein and its nursing effect
Li-Na MEI ; Ming-Yu YANG ; Bao-Yun JIAO ; Xue ZHAO
Chinese Journal of Modern Nursing 2009;15(11):1030-1031
Objective To observe the incidence of phlebitis in patients with PICC through peripheral vein and its nursing effect, in order to aLleviate the patients' suffering. Methods The 60 volunteers were divided into three groups randomly, who were received PICC through basilie vein, vena mediana and cephalic vein, the incidence of of phlebitis and therapeutic effieaey were analyzed. Results 2 patients appeared phlebitis in 20 cases received PICC through basilic vein, 3 patients in 20 eases through eubital vein, and all cured;11 patients in 20 eases through cephalic vein, while 9 patients were cured and 2 patients were detubated in cephalic vein group. Conclusions It' s suggested that the prevalence of phlebitis with PICC through cephalic vein is high, with long treat time and low cure rate. It' s likely to reduce the phlebitis occurrence and patients relief from pain through eephalic vein.
10.Effect of tetrandrine, toremifene and their combination on the reversion of multidrug resistance of K562/A02 cell line.
Qiu-Xia ZHAO ; Bao-An CHEN ; Jian CHENG ; Jia-Hua DING ; Feng GAO ; Chong GAO ; Yun-Yu SUN ; Jun WANG ; Gang ZHAO ; Wen BAO ; Hui-Hui SONG
Journal of Experimental Hematology 2008;16(1):61-64
This study was aimed to investigate the reversible effect of tetrandrine, toremifene and their combination on multidrug resistance of K562/A02 cell line. The IC(50) (the concentration causing 50% inhibition of cell growth) of adriamycin (ADR) were assayed by MTT method, the expression of MDR1 mRNA was measured by RT-PCR, the concentration of p-glycoprotein (P-gp) and intracellular ADR were detected by flow cytometry. The results showed that the IC(50) of ADR on K562/A02 and K562 cells were 57.43 and 1.16 mg/L, respectively. The IC(50) of ADR on K562/A02 cells after treatment with tetrandrine, toremifene and both combination were 14.12, 20.74 and 9.14 mg/L respectively, but both drugs did not influence the IC(50) of ADR on K562 cells. Pretreating K562/A02 cells with toremifene (2.5 micromol/L), tetrandrine (1 micromol/L) or both for 72 hours partially restored the sensitivity of K562/A02 cells to ADR. Tetrandrine and toremifene (alone or combination) elevated the ADR concentration in K562/A02, down regulated the expressions of P-gp and MDR1 mRNA. It is concluded that multidrug resistance of K562/A02 cells can be partially reversed by tetrandrine or toremifene, the combination of both drugs shows a higher synergistic reversal effect.
Antineoplastic Agents, Hormonal
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pharmacology
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Antineoplastic Agents, Phytogenic
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pharmacology
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Benzylisoquinolines
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pharmacology
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Doxorubicin
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Drug Resistance, Multiple
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drug effects
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Drug Resistance, Neoplasm
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drug effects
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Drug Synergism
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Humans
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K562 Cells
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Toremifene
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pharmacology