1.Effects of esomeprazole and omeprazole on clopidogrel platelet inhibition following cardiac stent implantation
Chinese Journal of Tissue Engineering Research 2009;13(52):10283-10286
OBJECTIVE:To compare the effects of omeprazole and esomeprazole,two kinds of proton pump inhibitors,on clopidogrel platelet inhibition following cardiac stents implantation.METHODS:Totally 180 patients with coronary artery disease underwent percutaneous coronary intervention (PCI) at the Zhujiang Hospital of Southern Medical University from June 2008 to May 2009 were selected,including 83 males and 97 females.All patients were randomly divided into 3 groups,omeprazole + clopidogrel + aspirin group (OCA group,receiving omerprazole 20 mg/d),esomeprazole+clopidogrel+aspirin group (ECA group,receiving esomeprazole 10 mg/d),and control group (No proton pump inhibitor),with 60 patients in each group.In addition,all patients received a 300 mg clopidogrel and 0.1 g aspirin prior to PCI,and received 75 mg/d clopidogrel and 100 mg/d aspirin treatment for 1 week after PCI.Blood samples from patients were obtained from cubital vein before and at 1 week after adminstration,respectively.The vasodilator stimulated phosphoprotein phosphorylation state and platelet reactivity index (PRI) were calculated by flow cytometric assay.RESULTS:The PRI had no significant difference before administration (P>0.05),which was obviously decreased at 1 week after administration (P<0.05),especially lowest in the control and ECA groups (P<0.05).However,the PRI differences between the control and the ECA group had no significant (P>0.05).CONCLUSION:The administration of omeprazole rather than esomeprazole is associated with impaired clopidogrel platelet inhibition.Esomeprazole can be used as one of the preferred proton pump inhibitor in curing gastrointestinal bleeding caused by anti-platelet therapy following cardiac stents implantation.
2.Significance of detection of serum oxidant function in patients with silicosis.
Guo-Cai LÜ ; Jin-Mei YAO ; Juan-Wen ZHANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2010;28(1):52-53
Aged
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Case-Control Studies
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Humans
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Male
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Malondialdehyde
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metabolism
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Middle Aged
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Oxidation-Reduction
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Serum
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metabolism
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Silicosis
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blood
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Superoxide Dismutase
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metabolism
3.Significance of determination of serum xanthine oxidase and lipid peroxidation indexes in acute organophosphorus poisoning.
Juan-wen ZHANG ; Guo-cai LV ; Yu-qin JIN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2008;26(4):239-240
Acute Disease
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Adult
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Aged
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Female
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Humans
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Lipid Peroxidation
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Male
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Malondialdehyde
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blood
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Middle Aged
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Organophosphate Poisoning
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Oxidative Stress
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Superoxide Dismutase
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blood
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Xanthine Oxidase
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blood
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Young Adult
5.Expression of Y1 receptor during osteogenic differentiation of bone marrow mesenchymal stem cells
Zhao WANG ; Dan JIN ; Yonghua TUO ; Xiaolei GUO ; Jun WEN
Chinese Journal of Trauma 2011;27(1):72-77
Objective To compare the expression changes of neuropeptide Y (NPY) receptor Y1 in different stages of osteoblast differentiation of rat bone marrow mesenchymal stem cells (BMSCs).Methods The rBMSCs were isolated in vitro from Sprague-Dawley (SD) rats using whole bone marrow adherence method and cultured. Then, the rBMSCs were divided into osteoblast-induced group and noninduced group. In different periods of culture at 1, 2 and 3 weeks, identification of the osteoblasts was performed by using immunocytochemistry and Western blot. Expressions of mRNA and protein of Y1 receptor were detected by real time reserve transcriptase-polymerase chain reaction (RT-PCR) and Western blot. Results RT-PCR demonstrated that osteoblast-induced group had a lower expression of Y1 receptor than non-induced group at the same time point and the expression of Y1 receptor was increased in a time-dependent manner in both groups. Western blot demonstrated higher expression of Y1 receptor in osteoblast-induced group compared with non-induced group at the same time point and a decreased expression of Y1 receptor in a time-dependent manner in both groups. Conclusions During the process of osteoblastic differentiation of rat BMSCs, the expressions of mRNA and protein of NPY Y1 receptor show different trends, when NPY may mediate the inhibition of osteoblastic differentiation of BMSCs through Y1 receptor pathway.
6.The effect of neuropeptides on proliferation of rat bone marrow mesenchymal stem cells
Zhao WANG ; Dan JIN ; Jun WEN ; Yonghua TUO ; Xiaolei GUO
Chinese Journal of Orthopaedics 2010;30(12):1223-1227
Objective To investigate the effects and mechanism of calcitonin gene-related peptide (CGRP) and substance P (SP) on proliferation of rat bone marrow mesenchymal stem cells. Methods The rBMSCs were isolated using whole bone marrow adherence method. In the different periods of culturing (1, 2,and 3 weeks), expressions of the neuropeptide receptors were detected by Western Blot and reserve transcriptase-polymerase chain reaction (RT-PCR). The BMSCs were treated with CGRP and SP at concentration 10-8 mol/L at different time (1,3,5,7,9 days), cell proliferation was detected with MTT assay, the protein expressions of cyclin D1 ,cyclin E and p53 were examined using Western Blot. Results The CGRP receptor and SP receptor were expressed in BMSCs. The expression of CGRP receptor was statistically higher than that of SP receptorat the same time point. The growth curves of BMSCs cultured by both neuropeptides had similar appearance. CGRP and SP stimulated the proliferation of BMSCs significantly at 9 days and 7 and 9 days. In this process, the expressions of cyclinDl and cyclinE were up-regulated by CGRP, SP only enhanced the expression of cyclinE; these effects all reached a peak at 5 days. The expression of p53 was down-regulated by both neuropeptides. Conclusion CGRP and SP had direct effects on the proliferation of BMSCs, the regulation of cell cycle proteins is one of the mechanisms.
7.The Curative Effect of Acupuncture Combined with Huanglian Wendan Decoction on the Mild Cognitive Impairment after Stroke
Yang CAO ; Fanye XU ; Yajuan JIN ; Zhen GUO ; Lina WEN
Progress in Modern Biomedicine 2017;17(27):5327-5330
Objective:To explore the curative effect of acupuncture combined with huanglian wendan decoction on the mild cognitive impairment after stroke.Methods:100 patients with mild cognitive impairment after stroke were enrolled in our hospital from June 2013 to August 2016 and randomly divided into two groups.The control group (n=50) accepted nimodipine,and the study group (n=50)accepted huanglian wendan decoction combined with acupuncture treatment based on the control group.The MMSE and MSSS scores were evaluated and compared,and the improvement of cognitive dysfunction and nervous dysfunction,quality of life were compared and analyzed.Results:After treatment,the MMSE,ADL scores of patients were remarkably decreased compared with those before treatment (P<0.05),and the decreasing degree of study group was significantly higher than those of the control group (P<0.05).The MSSS,MBI scores of both groups were significantly increased compared with those before treatment (P<0.05),and the increasing degree of study group was significantly higher than those of the control group (P<0.05).The effective rates of improvement in cognitive dysfunction and nervous dysfunction,quality of life of study group were significantly higher than those of the control group (P<0.05).Conclusions:Huanglian wendan decoction combined with acupuncture treatment was effective for the mild cognitive impairment after stroke and could improve the quality of life.
8.Change of activity of serum paraoxonase in patients with acute organophosphorus poisoning.
Juan-wen ZHANG ; Guo-cai LV ; Yu-qin JIN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2007;25(10):610-611
Acute Disease
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Adult
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Aged
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Aryldialkylphosphatase
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blood
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Female
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Humans
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Male
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Middle Aged
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Organophosphate Poisoning
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Young Adult