1.Gene markers for early detection of colorectal cancer
Peng LI ; Yun-Feng ZHU ;
Academic Journal of Second Military Medical University 2000;0(08):-
It has been indicated that the oncogene and anti-oncogene are closely related to the development and progression of cancer.With the development of molecular biology,detection of oncogene and anti-oncogene has become an important approach for clinical warning and diagnosing of cancer.Since the establishment of the molecular model of colon cancer by Fearon and Vogelstein in 1990,the genetics of colorectal cancer has gained major advances in early diagnosis.Early detection of related gene mutations is helpful for the early warning of colorectal cancer,especially for palients with hereditary cancer(the detection rate is fairly high).This review summarizes the progression of study on biomarkers of colorectal cancer.
2.Effects of Tan ⅡA on expression of HIF-la and c-Met in gastric cancer SGC7901 cells under hypoxia
Yuguang FENG ; Xushan ZONG ; Guohui XING ; Yun ZHU ; Meiying WU
Journal of International Oncology 2010;37(5):394-396
Objective To study the effects of Tan Ⅱ A on the expression of c-Met and HIF-lα in gastric cancer SGC7901 cells under hypoxia and the correlation between c-Met and HIF-lα expression. Methods The model of hypoxia was established by CoCl2. There were three groups; normal control group, hypoxia control group, and hypoxia combined with different concentrations of Tan ⅡA group. After Tan ⅡA was added to the media with 0.5, 2.0 and 10.0 mg/L respectively for 48 h under hypoxia, the expression of HIF-1α and c-Met protein was detected by immunocytochemical staining. Results Immunocytochemical staining revealed that the expression of HIF-1α and c-Met protein was inhibited by Tan ⅡA in a dose-dependent manner under hypoxia. High positive correlation was found between the expression of HIF-1α and c-Met (n = 4, r = 0. 996, P <0.01). Conclusion Tan ⅡA might inhibit the expression of c-Met protein via down-regulation of HIFlα protein expression under hypoxia, suggesting that Tan ⅡA might play an important role in fighting against hypoxia-stimulated invasion and metastasis of tumor.
3.Research on the medical insurance system and operating mode in South Korea
Feng CHANG ; Meiyan JI ; Yun LU ; Penglei CUI ; Xiaorui ZHU
Chinese Journal of Health Policy 2015;8(12):41-46
Objectives To provide reference for the improve of health care system and healthcare insurance con-trolling method, through researching on the value-based healthcare paying system in South Korea. Methods The basic characteristics of the Korean health care system was researched, Specifically, its reform experiences of value-based health insurance review and assessment paying system,which government took. Results South Korea’s health care pay-ing system had achieved both good social and policy effects. Conclusions Value-based health care paying system is the main reason for the reducing of health care expenditures and making of scientific health policy.
4.Method of Radix Scutellariae proccessed with wine and its HPLC fingerprint
Yun YANG ; Weisheng FENG ; Yongju WEN ; Zhenhua ZHU ; Runtao TIAN
Chinese Traditional Patent Medicine 1992;0(05):-
AIM: To investigate the processing and HPLC fingerprint of Radix Scutellariae processed with wine,and to set up appropriate quanlity control standard. METHODS: chromatographic condition of HPLC-UV fingerprint consisted of Hypersil C_18 column(200 mm?5.0 mm,5 ?m),mixture of methanol,0.4% phosphoric acid and acetonitrile as a mobile phase in a gradient mode.Flow rate was 1.0 mL/min and detection wavelength was set at 277 nm. RESULTS: There were no evident differences among fingerprints of Radix Scutellariae that was normatively processed from the production areas. CONCLUSION: The process is feasible,and can be used to provide a basis for quanlity control of Radix Scutellariae.
5.Optimization of Hospital Inventory Management of Expensive Drugs
Yuanxing ZHANG ; Shuyin TANG ; Jiaqin GU ; Jun ZHU ; Yun FENG
China Pharmacy 2007;0(34):-
OBJECTIVE:To scientifically establish the variety scope of expensive drugs and to reduce the stock level to a maximum degree under the premise of supply security. METHODS: The variety scope of expensive drugs was established by modified ABC (activity-based costing) analytical method,and the management on expensive drugs was carried out by fixed-quantity system (FQS) together with fixed-interval system (FIS). RESULTS: The practice of the optimized management effectively reduced the stock quantity of expensive drugs,increased the amount of money of 75 stocked drugs to 2.473 7 million yuan from 3.935 7 million yuan;the turnover rate rose from 238.36% to 461.86%,and the turnover days were decreased from 13.03 days to 8.29 days. CONCLUSION: Computer management in combination with the modified ABC analytical method together with FQS and FIS management led to an effective and accurate inventory management of expensive drugs,which then resulted in a speedy turnover rate,decreased fund occupying and lowered drug cost.
6.Value of detecting HEARTS3 Score to improve risk stratification in patients with non-ST segment elevation chest pain in emergency department
Zhihua CHEN ; Feng ZHU ; Jianju QI ; Yi XU ; Yun ZHOU ; Yun ZHANG ; Jianping ZONG
Chinese Journal of Emergency Medicine 2016;25(2):190-193
Objective To investigate the value of detecting HEART score and HEARTS3 score in risk stratification and prognosis of acute coronary syndrome (ACS) in patients with non-ST segment elevation chest pain in emergency department (ED).Methods Clinical data of case-control retrospective study of 775 patients with non-ST segment elevation chest pain in ED were collected from July 2011 to March 2015.The patients were estimated and risk stratification was made with HEART score and HEARTS3 score.After follow-up visiting by telephone for 30 days,outcomes were found to be ACS and myocardial infarction (MI).And the patients were categorized with score into low,intermediate and high risk groups.The correlation between the ACS and risk score in three groups was analyzed.Comparison of capability of performance in predicting 30-day ACS between the HEART score and HEARTS3 risk score.Statistical analyses were performed using SPSS13.0.Enumeration variables were expressed as percentage.For comparison of predictive value of the two sets of scores,area under the receiver operating curve (auROC) was calculated and compared by Z test.Results There were 92 cases with 30-day ACS.The rate of ACS had a trend of increase with increase in HEART score and HEARTS3 score.The patients with higher scores of HEART and HEARTS3,higher incidence of ACS in 30 days.Especially,the high-risk patients with score≥7 of HEART score and≥8 of HEARTS3 score had higher rate of ACS.And there was significant difference in predicting high-risk patients between two sets of scoring (P < 0.05).The HEARTS3 score outperformed the HEART score as determined by comparison of areas under the ROC curve for MI (0.952 vs 0.813;P =0.028),30-day ACS (0.913 vs.0.815;P =0.034).Conclusions HEART score and HEARTS3 score both can be used to evaluate and perform risk stratification for non-ST segment elevation chest pain patients in ED.But HEARTS3 score can more precisely stratify high-risk patients with chest pain for 30-day ACS.
7.Genetic diversity analysis of Andrographis paniculata in China based on SRAP and SNP.
Rong CHEN ; Xiao-Yun WANG ; Yu-Ning SONG ; Yun-feng ZHU ; Peng-liang WANG ; Min LI ; Guo-Yue ZHONG
China Journal of Chinese Materia Medica 2014;39(23):4559-4565
In order to reveal genetic diversity of domestic Andrographis paniculata and its impact on quality, genetic backgrounds of 103 samples from 7 provinces in China were analyzed using SRAP marker and SNP marker. Genetic structures of the A. paniculata populations were estimated with Powermarker V 3.25 and Mega 6.0 software, and polymorphic SNPs were identified with CodonCode Aligner software. The results showed that the genetic distances of domestic A. paniculata germplasm ranged from 0. 01 to 0.09, and no polymorphic SNPs were discovered in coding sequence fragments of ent-copalyl diphosphate synthase. A. paniculata germplasm from various regions in China had poor genetic diversity. This phenomenon was closely related to strict self-fertilization and earlier introduction from the same origin. Therefore, genetic background had little impact on variable qualities of A. paniculata in domestic market. Mutation breeding, polyploid breeding and molecular breeding were proposed as promising strategies in germplasm innovation.
Andrographis
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classification
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genetics
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China
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Genetic Variation
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Phylogeny
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Polymorphism, Single Nucleotide
8.Quadruple cancer in single patient.
Yun-feng XU ; Ai-jun LIU ; Zhi-gang SONG ; Li-xin WEI ; Qing-fu ZHU
Chinese Journal of Pathology 2005;34(10):698-698
Adenocarcinoma
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pathology
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Adenocarcinoma, Papillary
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pathology
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Aged, 80 and over
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Carcinoma, Renal Cell
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pathology
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Duodenal Neoplasms
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pathology
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Humans
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Kidney Neoplasms
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pathology
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Lung Neoplasms
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pathology
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Male
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Neoplasms, Multiple Primary
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pathology
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Sarcoma
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pathology
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Stomach Neoplasms
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pathology
9.Discussing of influence mechanism of Chinese herbal monomer on physical stability of cream.
Hui-Fu YIN ; He-Yun NIE ; Sen WANG ; Wei-Feng ZHU ; Rong-Miao LI
China Journal of Chinese Materia Medica 2014;39(19):3757-3763
This study left flavonoids and alkaloids Chinese herbal monomer with common parent nucleus as cream base carriages drug respectively, cream base were prepared with stable span 60-tween 80 emulsification system. The near-infrared stability analysis technology was performed to quantitatively characterize the physical stability of cream. Base on the theory of gel network structure, theory of emulsification, theory of solubility parameter and theory of double layer, the influence mechanism of Chinese herbal monomer on physical stability of cream was discussed. The results showed that tetrahydropalmatine, matrine and naringenin had similar solubility parameter value with cream base material, creams prepared with those Chinese herbal monomer have higher Zeta potential value and stronger physical stability, and that those creams had similar microstructure information with cream base. However, a larger solubility parameter difference exists between baicalin, baicalein, berberine, palmatine and cream base material. Creams prepared with those Chinese herbal monomers had lower Zeta potential value and poorer physical stability, and that those creams had great different microstructure information with cream base.
Drug Stability
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Drugs, Chinese Herbal
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chemistry
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Emulsions
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chemistry
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Kinetics
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Skin Cream
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chemistry
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Solubility
10.Progress in the study on the molecules in CD28 family.
Yun-lu FENG ; Li-ping ZHU ; Wei HE
Acta Academiae Medicinae Sinicae 2002;24(5):536-539
CD28 family consists of CD28, ICOS, CTLA-4 and PD-1 molecules. The former two are activation receptors and the later two are inhibition receptors. They produce co-stimulatory signals combining with the relevant molecules in B7 family, which plays important role in T cell activation and homeostasis among T subsets. Although the mechanism of signaling by CD28 and CTLA-4 has been well studied, many questions still remain to be answered. Further investigations are required for substantiating the dual-signaling model.
Animals
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Antigens, CD
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Antigens, Differentiation
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immunology
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CD28 Antigens
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immunology
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CTLA-4 Antigen
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Humans
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Immunoglobulin Fc Fragments
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immunology
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Signal Transduction