1.Progression of microRNA in esophageal cancer
Jiangliu YU ; Zhiqiang LING ; Weimin MAO
Journal of International Oncology 2011;38(12):920-922
Researches find that microRNAs(miRNAs) participate in cell proliferation,differentiation and apoptosis.Dysregulation of miRNA exist in almost all kinds of tumors,including esophageal cancer.MiRNAs bind to mRNA of oncogene or tumor suppressor gene by perfectly or partly base-pair complementarity,and then,promote mRNA degradation or inhibit translation of target mRNA.Recently studies have comfirmed that miRNA functions as a significant regulator in esophageal cancer and it is involved in tumorigenesis,development and prognosis.MiR-21 binds to programmed cell death 4(PDCD4) mRNA and inhibits the translation of PDCD4,then promotes tumorigenesis of esophageal cancer.MiR-106-25 polycistron is activated by genomic amplification,and then suppresses the expressions of P21 and Rim,and subsequently promotes the occurrence and progress of esophageal cancer.
2.Experiment Study of Anti-inflammatory and Analgesia Activity of Danweisan
Chenlie YU ; Qiyang SHOU ; Weimin ZHOU
Journal of Zhejiang Chinese Medical University 2006;0(04):-
[Objective]To observe the activity of anti-inflammatory and analgesia of Danweisan.[Methods]The analgesia action of Danweisan was determined with twisting method,and the anti-inflammatory effect of Danweisan was evaluated with xylene induced ear tumefaction.The effects of the small,medium,large dosages of Danweisan group(2,3,4g/kg) on twisting and ear tumefaction in mouse were assessed.[Results] Compared with the normal group,it was shown to exert dramatic inhibitory effect with concentration-dependence on mouse twisting and ear tumefaction in the Danweisan group.[Conclusion]Danwesan has a remarkable analgesia activity and a better anti-inflammatory action than asprine.
3.Regulatory study of LBP on the expression of T cells apoptosis-related genes in aged rats
Ziyin SHEN ; Weimin GUO ; Yu CHEN ;
Chinese Journal of Immunology 2000;0(09):-
Objective:To investigate the regulatory mechanism of LBP on T lymphocytes excessive apoptosis and the mRNA expression of apoptotic genes in aged rats Methods:T lymphocyte apoptosis and the expression of pre apoptotic and anti apoptotic genes (Fas, FasL, TNFR1, Bax, Bcl2 and TNFR2) from young rats and old rats treated with or without LBP were studied using flow cytometry and fluorescence real time quantitative RT PCR Results:LBP could effectively downregulate the percentage of T cell apoptosis in aged rats At the same time LBP also downregulated the transcription level of TNFR1 gene and upregulated the transcription level of Bcl 2 in T cells from old rats Conclusion:The T cell excessive apoptosis in old rats could be effectively downregulated with LBP, by the by of decreasing the expression of pro apoptotic gene and enhancing the expression of anti apoptotic gene
4.Preparation of the Chinese Braille standard
Lianjia YU ; Yaling JIA ; Weimin TENG
Chinese Journal of Rehabilitation Theory and Practice 1997;3(1):27-28
中国盲文是我国视力残疾人使用的触觉凸点文字。规范、统一中国盲文标准,将有力地促进视残者文化事业的发展。本文对盲文的起源与发展进行了简要的介绍,论述了“中国盲文”国家标准主要内容与制定依据。并阐明贯彻“汉语双拼盲文方案”是广大视力残疾人与盲文工作者的紧迫作务。
5.Analysis of incidence and mortality of prostate cancer in cancer registration area in Zhejiang province from 2000 to 2009
Lingbin DU ; Huizhang LI ; Weimin MAO ; Chuanding YU ; Xianghui WANG
Chinese Journal of Urology 2014;35(10):757-761
Objective To investigate the epidemic characteristics and trends of incidence and mortality of prostate cancer in cancer registration areas in Zhejiang province from 2000 to 2009.Methods Clinical data incidence and mortality of prostate cancer were collected from 6 cancer registration areas in Zhejiang province,including Hangzhou,Jiaxing,Jiashan,Haining,Shangyu and Xianju.Crude rates,standardized rate and change trend,age-specific rates and annual percent change (APC,95% CI) of prostate cancer were checked,sorted and analyzed in Zhejiang Cancer Center.Results The prostate cancer incidence rate from 2000 to 2009 was 9.79/100 000,age-standardized incidence rates by world standard population (ASIRW) was 6.39/100 000,and the incidence cumulative risk of males aged 0-74 was 0.72% ; while the mortality rate was 2.73/100 000,age-standardized mortality rates by world standard population was 1.74/100 000,and the mortality cumulative risk of males aged 0-74 was 0.14%.Age-specific incidence of prostate cancer remained low before 50,years old and peaked at over 85-year-old group (130.30/100 000).Age-specific mortality of prostate cancer increased after 55,and also peaked at over 85-year-old group (81.19/100 000).The annual prostate cancer incidence rate generally grew from 1.39/100 000 (2000) to 13.89/100 000 (2009),and the APC was 14.18% (95% CI,9.68%-18.98%).Meanwhile,the prostate cancer mortality rate also increased from 1.52/100 000 (2000) to 3.58/100 000 (2009),and the APC was 11.83% (95% CI,5.69%-18.33%).Conclusion Prostate cancer incidence and mortality in Zhejiang cancer registration areas increased sharply,and the prevention and treatment of prostate cancer should be strengthened.
6.Diagnosis and treatment of popliteal artery entrapment syndrome
Tao SONG ; Weimin ZHOU ; Liquan YU ; Yong SUN ; Yong GAO
Chinese Journal of General Surgery 2010;25(9):740-743
Objective To summarize our experience in the diagnosis and management of popliteal artery entrapment syndrome (PAES). Methods This is a retrospective study on 10 patients (13 limbs)who were admitted for symptoms of claudication and the diagnosis of popliteal entrapment was established either with angiography,computed tomographic angiography,magnetic resonance angiogram or during the operation in recent 7 years (2002-2009).All patients were treated surgically. Results The mean age at the time of presentation was (25 ±7) years old (range,17-41 years).Claudication was the most frequent presenting symptom (12 limbs).The surgical procedures consisted of simple musculotendinous dissociation in 1 limb,thrombectomy with balloon angioplasty in 1 limb,musculotendinous dissociation plus thromboendarterectomy with autogenous saphenous vein (ASV)patch angioplasty in 2 limbs,ASV graft interposition or bypass in 6 limbs and graft interposition or bypass in 3 limbs.At a median follow-up of (35 ±27) months (range,2 months-7 years),there were no intraoperative or long-term postoperative complications and all the patients were cured. Conclusions PAES is an unusual but important cause of peripheral vascular insufficiency especially in young patients.A combined approach is necessary for diagnosis.Popliteal artery release alone or with vein bypass or reconstruction is the treatment of choice.
7.Manual reduction for external fixation of distal radius fractures
Lingyun CHEN ; Yongbin HU ; Weimin LU ; Nengbao YU ; Qiang FU
Chinese Journal of Tissue Engineering Research 2013;(52):9083-9088
BACKGROUND:Manual reduction for external fixation of distal radius fractures can achieve good outcomes.
OBJECTIVE:To carry out the bibliometric analysis on manual reduction for external fixation of distal radius fractures.
METHODS:Literatures concerning reduction for external fixation of distal radius fractures were retrieved in CNKI database from 2003 to 2012. The keywords were“external fixation;distal radius fractures”. Duplicate and irrelevant articles were eliminated, and a total of 408 articles were retrieved. A bibliometric analysis of these 408 articles was performed in terms of publishing time and number, subject categories, source journals, research institutions, times cited and download frequency.
RESULTS AND CONCLUSION:Literatures concerning manual reduction for external fixation of distal radius fractures exhibit an upward trend in number. In 2012, there were 85 relevant articles. In the past 10 years, 18 relevant articles have been published in Chinese Journal of Traditional Medical Traumatology&Orthopedics, which is the most. There are not many relevant studies in various research units, only 1-7 articles published per unit, and five articles are funded.
8.The design and construction of medical multimedia teaching resource library
Yu WU ; Dadong XUE ; Yunsheng LIU ; Chanjuan LI ; Weimin LI
Chinese Journal of Medical Education Research 2011;10(5):628-629
Building a medical multimedia teaching resource library is beneficial to distance medical education and the efficiency of multimedia resource usage. Its construction depends on not only modern information technology and the network, but also a comprehensive design from the angle of resource integration.
9.Application evaluation of critical value fists data
Dagan YANG ; Xichao GUO ; Genyun XU ; Weimin ZHANG ; Yu CHEN
Chinese Journal of Laboratory Medicine 2008;31(6):695-698
Objective Analyze the historical data of critical values lists,providing scientific evidence for continuous improvement of critical value systems.Methods Screen out critical value lists data of 2006 from laboratory information system,after pretreatment and transformation of data,calculate the percentage of critical value,and its daily distribution,weekly distribution and department distribution, evaluate the range and turnaround time for critical value.Results The rate of critical value was 1.67%.It was mainly concentrated from 8 to 13 O'clock.Monday and Thursday have more critical value than other days.From the perspective of department,the majority critical value was from hematology department and transplantation department.After the evaluation of distribution diagram of critical value range,the lower critical value limit of blood potassium was adjusted from 3.0 mmol/L to 2.8 mmol/L,the blood platelet and leukocyte counts for parlents with hematology disease were a(Ijusted from 20×109/L,1.5×109/L to 10×1O9/L,1.0×109/L respectively.The laboratory turnaround time for 76.2% critical value was less than 1 hour.Conclusion Review and analyze critical value lists data regularly can improve the work efficiency and quality for the laboratory and clinic department and better meet patients' safety needs.
10.Scutellarin antagonizes ischemia-reperfusion injury to human cardiac microvascular endothelial cells by increasing ERK phosphorylation
Xian HUANG ; Xiaoxue LI ; Zhuo YU ; Weimin YANG ; Lin LI
Journal of Medical Postgraduates 2017;30(9):912-916
Objective Scutellarin (SCU), a Chinese traditional medicine, has a protective effect against ischemia-reperfusion (IR) induced myocardial injury, but it is not yet clear whether SCU acts against vascular endothelial IR injury via extracellular signal-regulated kinase 1/2 (ERK1/2).The aim of this study was to explore the effect of SCU on hypoxia-reoxygenation (HR)-induced injury to human cardiac microvascular endothelial cells (HCMECs) and its influence on the ERK1/2 signaling pathway.Methods HCMECs were subjected to normal culture and divided into a normal control, a DMSO, an SCU 1 μmol/L, and an SCU 10 μmol/L group.The model of HR injury was established by exposing the HCMECs to 12-h hypoxia and 12-h reoxygenation after treated with DMSO or SCU at 1 and 10 μmol/L for 2 hours.Then, the survival rate of the HCMECs was detected by MTT and trypan blue staining, the concentration of malondialdehyde (MDA) in the cells measured, and the expressions of the p-ERK1/2, ERK2 and GAPDH proteins determined by Western blot.Results SCU at 1 and 10 μmol/L significantly increased the survival rate of the normally cultured HCMECs ([110.40±2.34] and [122.00±1.25] %) as compared with that of the normal control (100%) (P<0.05), while HR injury markedly decreased the vitality of the HCMECs ([68.00±4.06] %) in comparison with that of the blank control (100%) (P<0.05).The survival rate of the HCMECs was remarkably higher in the HR+SCU 1 μmol/L and HR+SCU 10 μmol/L groups than in the HR model group ([90.53±3.67] and [92.04±2.32] %) (P<0.05), and so was their vitality in the SCU 10 μmol/L group than in the normal control ([96.78±2.01] vs [90.06±1.85] %, P<0.01), while their survival rate was significantly lower in the HR model than in the blank control ([73.72±4.91] vs [91.83±2.34] %, P<0.01) and remarkably higher in the SCU 10 μmol/L ([87.59±2.64] %) than in the HR model group (P<0.05).The MDA concentration in the HCMECs was markedly increased in the HR model and HR+DMSO groups as compared with the blank control (P<0.01), but decreased in the HR+SCU 1 μmol/L and HR+SCU 10 μmol/L groups in comparison with the HR model group (P<0.05).The expression of the p-ERK1/2 protein was significantly down-regulated in the HR model group as compared with the blank control (P<0.01), but up-regulated in the HR+SCU 10 μmol/L group in comparison with the HR model (P<0.01).Conclusion HR injury reduces the vitality of HCMECs, increases the MDA concentration, and down-regulates the expression of the p-ERK1/2 protein in HCMECs, while SCU acts against ischemia-reperfusion injury to HCMECs by increasing ERK phosphorylation.