1.Analysis of the results of creatine kinase reference method in ring trial program
Shan CHI ; Mo SHEN ; Man ZHANG
Chinese Journal of Laboratory Medicine 2010;33(6):554-558
ObjectiveTo provide a reference for the establishment and appliance of enzyme reference measurement of CK in China by comparing and analyzing the RELA results of CK in IFCC from 2006-2008. Methods The RELA samples of CK were measured according to the reference procedure for the measurement of catalytic activity concentration of CK (37 ℃) ,which had been published by IFCC. The EP5A2 protocol was used for evaluation of the imprecision and ERM was used for verification of the trueness. Results In RELA 2006, the result of sample A was (9. 896 ±0. 112) μkat/L, and the result of sample B was (4.953 ±0. 120) μkat/L. In RELA 2007, the result of sample A was (2.684 ±0.054)μkat/L, and the result of sample B was (8.798 μ0. 101) μkat/L. In RELA 2008, the result of sample A was (10. 523 ±0. 149) μkat/L,and the result of sample B was (10. 551 ±0. 141) μkat/L. The precision of the CK reference method in the year 2006 to 2008 was 0. 92%, 0. 86% and 0. 88% respectively, each of them is less than 1% and the results of ERMs were consistent with the certified value(1. 68 ± 0. 07)μkat/L,which verify the imprecision and accuracy of the reference method. Conclusions All of the results in the continuous three years were in the range of equivalence limits suggested by IFCC. The CK reference method suggested by IFCC has been established and it is getting better.
2.EXPLORATION ON THE MECHANISMS IN ALLOGENIC HEART TRANSPLANTATION IMMUNE TOLERANCE IN- DUCED BY HYDROCAMPTOTHECIN
Ruixiong SHEN ; Bingyi SHI ; Chunbai MO
Medical Journal of Chinese People's Liberation Army 2001;0(10):-
To induce immune tolerance in recipient rats of allogenic heart transplantation with hydrocamptothecin (HCPT) and cyclosporin A (CsA) and to study the mechanisms of the tolerance, inbred SD rats were chosen as heart donors and Wistar rats as recipients. After transplantation, the recipients were treated with HCPT and/or CsA. The level of cytokine expression was assessed using RT-PCR. The results showed 3 of 10 heart grafts in group C (HCPT 2. 0mg) and 5 of 10 in group E (HCPT+CsA) survived longer than 730 days even immunosup-pression agents (HCPT and CsA) were withdrawn on day 60 after transplantation. Immune tolerance was verified by challenge with SD and SHR rat skin. The levels of IL-2 and IFN-? rnRNA expression were significantly lower in the grafts of tolerant rats than in those of rejected rats, The levels of IL-4 and IL-10 mRNA were significantly higer in the grafts of tolerant rats than in those of rejected rats. The level of cytokine mRNA expression in the grafts was similar to that in spleen of recipients. Our conclusions is high or low dosage of HCPT combined with CsA could induce tolerance in allogenic heart transplantation in rat recipients. Cytokine deviation is one of the mechanisms in allogenic heart transplantation immune tolerance induced by hydrocamptothecin.
3.The protective effect of total paeony glycoside on apoptosis in myocardial ischemic rats
Xian SHEN ; Xiaoyan MO ; Xiaoyang DU
Chinese Pharmacological Bulletin 2003;0(10):-
Aim To further investigate the protective effect and mechanisms of total paeony glycoside (TPG) on apoptosis in experimental myocardial ischemic rats.Methods The myocardial ischemic model of rats was established by subcutaneous injection of isoprenaline (ISO), and early apoptosis rate of myocardial cells and the expression of apoptosis related genes Bax, Bcl-2 and proteins in myocardial tissues were analyzed and contrasted among five groups, including normal control, ISO injury, TPG prevention and treatment, TPG treatment and positive control.Results Compared with ISO injury group, all of indexes had improved in various degrees in TPG prevention and treatment group and TPG treatment group, such as the decrease of early apoptosis rate,expression of Bax gene and protein, the increase of Bcl-2 gene and protein and the ratio of Bcl-2 protein/Bax protein.Conclusion TPG has protective effect on apoptosis in ischemic myocardium induced by ISO.The pharmacological mechanism may relate to the activation of the Bcl-2 gene and protein expression, the inhibition of Bax gene and protein expression, as well as the increase of Bcl-2/Bax ratio.
4.Wu Liangcun’s Analysis about Clinical Experience of Ovarian Cancer’s Treatment
Jianshu MO ; Binbin WANG ; Minhe SHEN
Journal of Zhejiang Chinese Medical University 2016;40(9):663-665
Objective] To summarize national famous doctor of traditional Chinese medicine-Wu Liangcun ’s experience about the clinical treatment of ovarian cancer. [Method] By studying and following Professor Wu Liangcun to diagnose, this paper discusses Professor Wu ’s academic views and clinical experience of diagnosis and treatment of ovarian cancer respectively from the aspects such as etiology and pathogenesis, and treatment based on syndrome differentiation. It expounds the characteristics of his prescription and also gives proven cases. [Result]Professor Wu Liangcun proposes that the pathogenesis of ovarian cancer is mainly congenital deficiency and physical weakness resulted from cold coagulation, qi stagnation, blood stasis and phlegmatic hygrosis. All these remain a standstill, gather together and become a disease. He uses the syndrome differentiation method to divide the common ovarian cancer into four types:blood stasis and vital energy retardation, phlegm dampness condensation, deficiency of liver-yin and kidney-yin, asthenia of qi and blood. In the treatment, he organically combines the dialectics and the differentiation of disease; In the selection of drugs, he streamlines the prescription and the drug, which maximizes the efforts of the drugs and has good efforts in clinic.[Conclusion] Professor Wu Liangcun is good at making a diagnosis and giving treatment of ovarian cancer in combination with disease and syndrome, and he uses medicine flexibly. It has a very good effect and practical value for guiding clinic, and it should be promoted.
5.The effects of 5-Aza-2-deoxycytidine, a methylation inhibitor, on the proliferation of androgen-sensitive prostate cancer cell line, and on the regulation of methylation of glutathione s-transferase P1 and retinoic acid receptorβ2 gene
Mo SHEN ; Binghua CHEN ; Ping ZHOU ; Wu ZHOU ; Zhihua TAO
Chinese Journal of Geriatrics 2014;33(3):306-310
Objective To investigate the effects of 5-Aza-2'-deoxycytidine (5-Aza-dc),a methylation inhibitor,on the proliferation of androgen-sensitive prostate cancer line (LNCaP),and on its regulation of methylation on glutathione s transferaseP1 (GSTP1) and retinoic acid receptorβ2 (RARβ2) gene.Methods LNCaP cells were treated with 5-Aza-dc in different concentration,CCK8 method was used to detect the growth of LNCaP cells.The methylation of GSTP1 and RARβ2 gene in LNCaP cell was detected by nested methylation specific polymerase chain reaction (nMSP).Results The proliferation of LNCaP cells was inhibited after exposed to 5-Aza-dc.The methylation of GSTP1 and RARβ2 gene was changed from hypermethylation to demethylation by the 5-Aza-dc.These effects were dose-and time-dependent within certain concentration of 5-Aza-dc,but LNCaP cells grew better after 72 h than within 48 h when exposed to 5 Aza dc below 1.0 μmol/L.Also the methylation of GSTP1 and RARβ2 gene changed from hypermethylation to demethylation by the 5-Aza-dc was not different when exposed to 5-Aza-dc below 1.0 μmol/L within 72 h and 48 h.Conclusions 5-Aza-dc may effectively inhibit the growth of LNCaP cells and reverse the DNA methylation damage in some tumor suppressor genes,but the continuity and stability of low dose 5-Aza-dc is changeable.The study will provide a research basis for clinical treatment.
6.Display cellulolytic enzymes on Saccharomyces cerevisiae cell surface by using Flo1p as an anchor protein for cellulosic ethanol production.
Chunling MO ; Yueyue YANG ; Ning CHEN ; Xiushan YANG ; Shen TIAN
Chinese Journal of Biotechnology 2014;30(9):1401-1413
In this study, we constructed a yeast consortium surface-display expression system by using Flo1 as an anchor protein. Endoglucanase II (EGII) and cellobiohydrolase II (CBHII) from Trichoderma reesei, and β3-glucosidase 1 (BGLI) from Aspergillus aculeatus were immobilized on Saccharomyces cerevisiae Y5. We constructed the cellulose-displaying expression yeast consortium (Y5/fEGII:Y5/fCBHII:Y5/fBGLI = 1:1:1) and investigated the enzymatic ability and ethanol fermentation. The displayed cellulolytic enzymes was stabile during the 96-h fermentation. The yeast consortium produced 0.77 g/L ethanol from 10 g/L phosphoric acid swollen cellulose (PASC) within 96 h. The yield (in grams of ethanol produced per gram of carbohydrate consumed) was 0.35 g/g, which correspond to 68.6% of the theoretical yield.
Aspergillus
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enzymology
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Cellulase
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genetics
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Cellulose
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metabolism
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Cellulose 1,4-beta-Cellobiosidase
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genetics
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Enzymes, Immobilized
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genetics
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Ethanol
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metabolism
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Fermentation
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Glucosidases
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genetics
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Mannose-Binding Lectins
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metabolism
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Protein Binding
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Saccharomyces cerevisiae
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genetics
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metabolism
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Saccharomyces cerevisiae Proteins
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metabolism
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Trichoderma
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enzymology
7.Effect of health education improvement on promotion of timely vaccination among migrant children in community
Guozhen MA ; Beirong MO ; Pengjun JIANG ; Honglin SHEN ; Junmei DENG
Chinese Journal of Nursing 2017;52(1):87-92
Objective To explore the effect of health education improvement on promotion of timely vaccination among migrant children in community and to provide references for community health service center.Methods A total of 155 migrant children's parents were recruited from July 2015 to February 2016,and improved health education intervention was carried out on the basis of routine health education to promote parents' health belief on timely vaccination.The compliance of parents' participation in health education activities,the health belief of parents themselves on timely vaccination at different stages of intervention and parents' satisfaction,and the rate of timely vaccination of migrant children before and after intervention were evaluated.Results Regarding the compliance of health education activities for parents in 12 weeks,the first 3 weeks was 85% ~ 91%,the last 4 weeks were 95% and above.Six months after intervention,the score of parents' health belief on timely vaccination was higher than that after 3 months of intervention and before intervention,and the difference was statistically significant (P<0.05).The timely vaccination rates in the study group for migrant children was higher than that in the historical groups (P<0.05).After intervention,the satisfaction rate for parents was 95.484%.Conclusion Health education improvement could effectively promote parents' health belief on timely vaccination,satisfaction rate and rate of timely vaccination among migrant children.
8.Simultaneous pancreas-kidney transplantations for type 2 diabetes mellitus with end stage renal disease-73 cases report
Yingxin FU ; Wenli SONG ; Chunbai MO ; Gang FENG ; Zhongyang SHEN
Chinese Journal of Organ Transplantation 2017;38(1):1-5
Objective To explore the indications of simultaneous pancreas-kidney (SPK) transplantation for type 2 diabetes mellitus (DM) combined with end-stage renal disease by comparing the outcome of patients with type 1 and type 2 DM combined with end-stage renal disease after renal transplantation.Methods 109 patients accepting SPK from January 2008 to July 2016 in our center were divided into two groups according to the types of DM:T1DM (n =36),and T2DM (n =73).The basic characteristics of recipients,outcome,and pancreas and kidney functions after operation were compared between two groups.Results There was no significant difference in 5-year survival rate and surgical complications between two groups although recipients of T2DM group were older and had higher BMI than T1DM group.But rejection rate was higher in T1DM group.Conclusion SPK for T2DM recipients will not increase the surgical risk and can get good long-term outcome.
9.Isolation of Staphylococcus aureus from Detention Needles of Burn Patients and Analysis of Its Antibiotic Resistance
Ping ZHOU ; Mo SHEN ; Xuezhong HUANG ; Peipei LIN ; Shaoguan HUANG
Chinese Journal of Nosocomiology 1994;0(01):-
OBJECTIVE To study the detectable rate and the antibiotic resistance of Staphylococcus aureus from detention needles of burn patients,and provide instruction of clinic reasonably using antibiotics and clinical treatment.METHODS Totally 175 specimens detention needles of from burn patients were collected to isolate pathogenic organisms.Identification of bacterial strains and susceptibility tests were performed by ATB system.RESULTS S.aureus isolated from the detention needles of burn patients was the predominant pathogen,accounted for 60.3%,and all of them were MRSA.Among these flora,all were resistant to penicillins,oxacillin and gentamicin and more than 50.0% were resistant to lincomycin,tetracyc1ine,rifampicin and so on,2.3% were resistant to minocycline and teicoplanin,and none was resistant to vancomycin, fusidic acid,and quinupristin-dalfopristin.CONCLUSIONS S.aureus isolated from the detention needles of burn patients is the predominant pathogen, which is resistant to many antibiotics.So we should identify the bacterial strains and give susceptibility tests of detention needles from burn patients promptly,in order to provide best instruction on clinic reasonably using antibiotics and slow the development of the resistant bacterial flora.
10.The clinical effect of cyclocryotherapy combining with paracentesis of anterior chamber in obsulute glaucoma
Yanran HUANG ; Li WANG ; Xiaojun SHEN ; Min MO
Chinese Journal of Primary Medicine and Pharmacy 2006;0(03):-
Objective To compare the clinical effects of different surgical management for obsolute glaucoma.Methods 31 eyes of absolute glaucoma were retrospectively analyzed,including 23 case 23 eyes(A group) with cyclocryotherapy,8 case 8 eyes(B group)with cyclocryotherapy combining with paracentesis of anterior chamber,the pain and duration were comparatively observed.Results In the cyclocryotherapy,the pain occurred in 23 eyes,the duration time was 3 to 10 days,the average time was 6.8 days.While 4 eyes occurred pain in the cyclocryotherapy combining with paracentesis of anterior chamber,the duration time was 1 to 3 days,the average time was 2.3 days.There was significant difference(P