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    题名 作者 年代 出处 被引量
1Colorectal cancer screening:20 years of development and recent progress显示文摘Colorectal cancer(CRC)is the second most common cancer in Europe and its incidence is steadily increasing.This trend could be reversed through timely secondary prevention(screening).In the last twenty years,CRC screening programs across Europe have experienced considerable improvements(fecal occult blood testing;transition from opportunistic to population based program settings).The Czech Republic is a typical example of a country with a long history of nationwide CRC screening programs in the face of very high CRC incidence and mortality rates.Each year,approximately 8000 people are diagnosed with CRC and some 4000 die from this malignancy.Twenty years ago,the first pilot studies on CRC screening led to the introduction of the opportunistic Czech National Colorectal Cancer Screening Program in 2000.Originally,this program was based on the guaiac fecal occult blood test(FOBT)offered by general practitioners,followed by colonoscopy in cases of FOBT positivity.The program has continuously evolved,namely with the implementation of immunochemical FOBTs and screening colonoscopy,as well as the involvement of gynecologists.Since the establishment of the Czech CRC Screening Registry in 2006,2405850 FOBTs have been performed and 104565 preventive colonoscopies recorded within the screening program.The overall program expanded to cover 25.0%of the target population by 2011.However,stagnation in the annual number of performed FOBTs lately has led to switching to the option of a population-based program with personal invitation,which is currently being prepared.Miroslav Zavoral Stepan Suchanek Ondrej Majek Premysl Fric Petra Minarikova Marek Minarik Bohumil Seifert Ladislav Dusek 2014World Journal of Gastroenterology2014,20,14:16
2浅谈集成计算材料工程和材料基因工程:思想及实践显示文摘革新材料研发模式、加速材料研发进程并降低材料研发成本是世界各国共同关注的热点。集成计算材料工程和材料基因工程是近年来材料科学与工程领域新颖的理念和方法,二者均为新材料研究与开发带来了全新的认识与机遇。集成计算材料工程是材料基因工程的基本组成元素。材料基因工程主要包括高通量实验、高通量计算和材料数据库三大要素。材料基因工程将集成计算材料工程的理念扩展到了整个材料科学、技术与工程链条,贯穿于从新材料发现到应用的全部过程。作为新材料研发的新模式,集成计算材料工程和材料基因工程必将为新材料研发起到不可替代的作用。简要回顾了材料研究的发展历程及存在的主要问题,详细介绍了材料基因工程与集成计算材料工程之间内在联系与区别。通过4个应用实例(梯度硬质合金、CVD耐磨涂层、锂离子电池、铝合金),展示了集成计算材料工程和材料基因工程在材料研发中的强大功能,为材料设计和开发提供了新思路。最后展望了集成计算材料工程和材料基因工程未来发展的重点及趋势。李波 杜勇 邱联昌 庞梦德 张伟彬 刘树红 李凯 彭英彪 周鹏 郑洲顺 宋旼 Seifert H 2018中国材料进展2018,37,7:12
3How significant is the association between metabolic syndrome and prevalence of colorectal neoplasia?显示文摘The incidence and prevalence of metabolic syndrome(MS) and colorectal cancer(CRC) has been rising in developed countries. The association between these two diseases has been widely studied and reported. Less evidence is available about the relationship between MS and CRC precancerous lesions(adenomatous polyps, adenomas). The aim of this paper is to present an overview of our scientific understanding of that topic and its implication in clinical practice. One of the principal goals of current CRC secondary prevention efforts is to detect and remove the precancerous lesions in individuals with an average CRC risk to prevent the development of invasive cancer. MS is not currently considered a high-risk CRC factor and is therefore not included in the guidelines of organized screening programs. However, in light of growing scientific evidence, the approach to patients with MS should be changed. Metabolic risk factors for the development of adenomas and cancers are the same- obesity, impaired glucose tolerance, dyslipidemia, hypertension, cardiovascular diseases and diabetes mellitus type 2. Therefore, the key issue in the near future is the development of a simple scoring system, easy to use in clinical practice, which would identify individuals with high metabolic risk of colorectal neoplasia and would be used for individual CRC secondary prevention strategies. Currently, such scoring systems have been published based on Asian(Asia-Pacific Colorectal Screening Score; APCS) and Polish populations.Stepan Suchanek Tomas Grega Ondrej Ngo Gabriela Vojtechova Ondrej Majek Petra Minarikova Nagyija Brogyuk Bohus Bunganic Bohumil Seifert Ladislav Dusek Miroslav Zavoral 2016World Journal of Gastroenterology2016,22,36:10
4Role of Hox genes in stem cell differentiation显示文摘Hox genes are an evolutionary highly conserved gene family. They determine the anterior-posterior body axis in bilateral organisms and influence the developmental fate of cells. Embryonic stem cells are usually devoidof any Hox gene expression, but these transcription factors are activated in varying spatial and temporal patterns defining the development of various body regions. In the adult body, Hox genes are among others responsible for driving the differentiation of tissue stem cells towards their respective lineages in order to repair and maintain the correct function of tissues and organs. Due to their involvement in the embryonic and adult body, they have been suggested to be useable for improving stem cell differentiations in vitro and in vivo. In many studies Hox genes have been found as driving factors in stem cell differentiation towards adipogenesis, in lineages involved in bone and joint formation, mainly chondrogenesis and osteogenesis, in cardiovascular lineages including endothelial and smooth muscle cell differentiations, and in neurogenesis. As life expectancy is rising, the demand for tissue reconstruction continues to increase. Stem cells have become an increasingly popular choice for creating therapies in regenerative medicine due to their self-renewal and differentiation potential. Especially mesenchymal stem cells are used more and more frequently due to their easy handling and accessibility, combined with a low tumorgenicity and little ethical concerns. This review therefore intends to summarize to date known correlations between natural Hox gene expression patterns in body tissues and during the differentiation of various stem cells towards their respective lineages with a major focus on mesenchymal stem cell differentiations. This overview shall help to understand the complex interactions of Hox genes and differentiation processes all over the body as well as in vitro for further improvement of stem cell treatments in future regenerative medicine approaches.Anne Seifert David F Werheid Silvana M Knapp Edda Tobiasch 2015World Journal of Stem Cells2015,7,3:10
5语言和音乐:语言认知研究的新视角显示文摘'语言-音乐'是以音乐为载体对语言进行探索的跨学科领域。以往的语言研究大都以语言自身为切入点,从语言看语言。'语言-音乐'为语言提供了具体比较对象,使研究者可以站在语言外部,从音乐看语言,是语言认知研究的新思路。本文重点论述了这种方法可以进行语言认知研究的基础,研究思路,存在的问题及拟解决的途径。孙晓霞 辛斌 Uwe SEIFERT 2014当代语言学2014,16,2:10
6Blood pressure and stature in Helicobacter pylori positive and negative persons显示文摘To evaluate vital signs and body indices in Helicobacter pylori(H.pylori)positive and negative persons.A total of 22 centres entered the study.They were spread over the whole country,corresponding well to the geographical distribution of the Czech population.A total of 1818 subjects(aged 5-98 years)took part in the study,randomly selected out of 38147 subjects.H.pylori infection was investigated by means of a 13Curea breath test.Data on height,weight,systolic and diastolic blood pressure and heart rate were collected at the clinics of general practitioners.The overall prevalence of H.pylori infection was 30.4%(402/1321)in adults(≥18 year-old)and 5.2%(26/497)in children and adolescents(≤17 year-old).Once adjusted for age and gender,only a difference in body mass index remained statistically significant with H.pylori positive adults showing an increase of 0.6 kg/m2 in body mass index.Once adjusted for age and gender,we found a difference in height between H.pylori positive and H.pylori negative children and adolescents.On further adjustment for place of residence,this difference became statistically significant,with H.pylori positive children and adolescents being on average 3.5 cm shorter.H.pylori positive adults were significantly older compared to H.pylori negative subjects.Once adjusted for age and gender,H.pylori infection had no impact on body weight,body mass index and vital signs either in adults or children and adolescents.Chronic H.pylori infection appeared to be associated with short stature in children.H.pylori infection did not influence blood pressure,body weight and body mass index either in adults or children and adolescents.Marcela Kopacova Ilona Koupil Bohumil Seifert Miluska Skodova Fendrichova Jana Spirkova Viktor Vorisek Stanislav Rejchrt Tomas Douda Ilja Tacheci Jan Bures 2014World Journal of Gastroenterology2014,20,19:9
7Colorectal cancer screening in Europe显示文摘Colorectal cancer(CRC)is the second most frequent malignant disease in Europe.Every year,412 000people are diagnosed with this condition,and 207 000patients die of it.In 2003,recommendations forscreening programs were issued by the Council of the European Union(EU),and these currently serve as thebasis for the preparation of European guidelines forCRC screening.The manner in which CRC screening iscarried out varies significantly from country to countrywithin the EU,both in terms of organization and thescreening test chosen.A screening program of onesort or another has been implemented in 19 of 27 EUcountries.The most frequently applied method is testing stool for occult bleeding(fecal occult blood test,FOBT).In recent years,a screening colonoscopy hasbeen introduced,either as the only method(Poland)orthe method of choice(Germany,Czech Republic).Miroslav Zavoral Stepan Suchanek Filip Zavada Ladislav Dusek Jan Muzik Bohumil Seifert Premysl Fric 2009World Journal of Gastroenterology2009,15,47:8
8Significant decrease in prevalence ofHelicobacter pylori in the Czech Republic显示文摘AIM:To study possible decrease in prevalence of Helicobacter pylori(H.pylori) infection in the Czech Republic within a 10-year period.METHODS:A total of 22 centres entered the study.The catchment areas of these centres covered cities and towns with more than 20 000 inhabitants,smaller towns(≤ 20 000 inhabitants) with surrounding villages and rural areas,and were spread over the whole country,corresponding well to the geographical distribution of the Czech population.A total of 1 837 subjects(aged 5-98 years) took part in the study,randomly selected out of 38 147 people from the general population.H.pylori infection was investigated by means of a 13 C-urea breath test.Breath samples in duplicates were analysed using isotope ratio mass spectrometry.The cut-off point was 3.5.Social and demographic characteristics were based on data from self-completed questionnaires.RESULTS:The overall prevalence of H.pylori infection was 23.5%(430/1826),and 4.8%(20/420) in children aged 15 or less.There was no statistically significant difference in prevalence between males(24.3%;208/857) and females(22.9%,222/969,P = 0.494).H.pylori infection was strongly associated with higher age,among subjects aged 55+ years,prevalence of H.pylori infection was 39.8%(252/633,P < 0.001).The highest prevalence of H.pylori infection was found among persons aged 55-64 years(43.9%,97/221) and 75+ years(37.9%,58/153).Among study subjects aged 15+ years,prevalence of H.pylori infection was significantly increased in those with lowest education(odds risk 3.19,95% CI 1.87-5.47).Compared to never married(14.1%),the prevalence of H.pylori infection was statistically significantly higher among married(35.4%,246/694,P < 0.001),divorced(36.8%,49/133,P < 0.001) and widowed study subjects(40.2%,45/112,P < 0.001),both in minimally and fully adjusted analysis.There was no significant difference in the prevalence of H.pylori infection between married and widowed subjects(35.4%,246/694 vs 40.2%,45/112,P = 0.389).There was little variation in smoking prevalence across categories of smoking and there was no evidence of an increased risk ofH.pylori infection among current or past smokers in our data(odds risk 1.04 with 95% CI 0.78-1.40 for current smokers;odds ratio 0.83 with 95% CI 0.60-1.16 for former smokers).The current prevalence of H.pylori in 2011 was significantly lower compared to the prevalence reported from identical geographical areas in 2001(23.5%vs 41.7%,P < 0.001).CONCLUSION:The overall prevalence of H.pylori infection in the general population has fallen substantially in the Czech Republic over the past 10 years.Jan Bure Marcela Kopáová Ilona Koupil Bohumil Seifert Miluka kodová Fendrichová Jana pirková Viktor Voíek Stanislav Rejchrt TomáDouda Norbert Král Ilja Tachecí 2012World Journal of Gastroenterology2012,18,32:8
9Reduction of ischemia reperfusion injury after liver resection and hepatic inflow occlusion by α-lipoic acid in humans显示文摘AIM: To evaluate the protective effects of precondition- ing by α-lipoic acid (LA) in patients undergoing hepatic resection under inflow occlusion of the liver. METHODS: Twenty-four patients undergoing liver re- section for various reasons either received 600 mg LA or NaCl 15 min before transection performed under inflow occlusion of the liver. Blood samples and liver wedge bi- opsy samples were obtained after opening of the abdo- men immediately after inflow occlusion of the liver, and 30 min after the end of inflow occlusion of the liver. RESULTS: Serum levels of aspartate transferase and alanine transferase were reduced at all time points in patients who received LA in comparison to those who received NaCL. This was accompanied by reduced histo- morphological features of oncosis. We observed TUNEL- positive hepatocytes in the livers of the untreated patients, especially after 30 min of ischemia. LA attenu- ated this increase of TUNEL-positive hepatocytes. Under preconditioning with LA, ATP content was significantly enhanced after 30 min of ischemia and after 30 min of reperfusion. CONCLUSION: This is the first report on the poten- tial for LA reducing ischemia/reperfusion injury (IRI) of the liver in humans who were undergoing liver surgery. Beside its simple and rapid application, side effects did not occur. LA might therefore represent a new strategy against hepatic IRI in humans.Fritz Dünschede Kirsten Erbes Achim Kircher Stefanie Westermann Joachim Seifert Arno Schad Kempski Oliver Alexandra K Kiemer Junginger Theodor 2006World Journal of Gastroenterology2006,12,42:6
10Effect of Bacillus subtilis and Bacillus licheniformis supplementation in diets with low-and high-protein content on ileal crude protein and amino acid digestibility and intestinal microbiota composition of growing pigs显示文摘Background: Bacillus spp. seem to be an alternative to antimicrobial growth promoters for improving animals' health and performance. However, there is little information on the effect of Bacillus spp. in combination with different dietary crude protein(CP) levels on the ileal digestibility and microbiota composition. Therefore, the objective of this study was to determine the effect of Bacillus spp. supplementation to low-(LP) and high-protein diets(HP) on ileal CP and amino acid(AA) digestibility and intestinal microbiota composition.Methods: Eight ileally cannulated pigs with an initial body weight of 28.5 kg were randomly allocated to a rowcolumn design with 8 pigs and 3 periods of 16 d each. The assay diets were based on wheat-barley-soybean meal with two protein levels: LP(14% CP, as-fed) and HP diet(18% CP, as-fed). The LP and HP diets were supplemented with or without Bacil us spp. at a level of 0.04%(as-fed). The apparent ileal digestibility(AID) and standardized ileal digestibility(SID) of CP and AA was determined. Bacterial community composition from ileal digesta was analyzed by Illumina amplicon sequencing and quantitative real-time PCR. Data were analyzed as a 2 × 2 factorial design using the GLIMMIX procedures of SAS.Results: The supplementation with Bacillus spp. did not affect both AID and SID of CP and AA in growing pigs.Moreover, there was no difference in AID of CP and AA between HP and LP diets, but SID of cystine, glutamic acid,glycine, and proline was lower(P < 0.05) in pigs fed the HP diets. The HP diets increased abundance of Bifidobacterium spp. and Lactobacillus spp.,(P < 0.05) and by amplicon sequencing the latter was identified as predominant genus in microbiota from HP with Bacillus spp., whereas dietary supplementation of Bacillus spp. increased(P < 0.05) abundance of Roseburia spp.Conclusions: The HP diet increased abundance of Lactobacillus spp. and Bifidobacterium spp.. The supplementation of Bacil us spp. resulted in a higher abundance of healthy gut associated bacteria without affecting ileal CP and AA digestibility, whereas LP diet may reduce the flow of undigested protein to the large intestine of pigs.Chanwit Kaewtapee Katharina Burbach Georgina Tomforde Thomas Hartinger Amelia Camarinha-Silva Sonja Heinritz Jana Seifert Markus Wiltafsky Rainer Mosenthin Pia Rosenfelder-Kuon 2017Journal of Animal Science and Biotechnology2017,8,3:5
11Acinetobacter baumannii Emergence of a Successful Pathogen显示文摘Peleg AY Seifert H Paterson DL 2008Clin Microbiol Rev2008,21,3:4
12Serum and urinary markers of skeletal muscle tissue damage after weight lifting exercise显示文摘G. L. Paul J. P. DeLany J. T. Snook J. G. Seifert T. E. Kirby 1989European Journal of Applied Physiology and Occupational Physiology1989,,:3
13中国的经济增长模型和总量生产函数适用性研究--本土与跨国途径两个维度的视角显示文摘要研究中国的宏观经济,首先需要确定适用于中国的经济增长模型和总量生产函数,但这方面研究迄今还很欠缺。该文运用基于数据生成过程的检验方法,研究经济增长的模型选择问题。结果表明:中国宏观经济具有两大特征:资本边际生产率非递减、投资率具有增长效应;所以,AK类型的经济增长模型适用于中国经济。对生产函数的检验结果显示,劳动力、教育年限和显性人力资本不能解释经济增长,只有物资资本和隐性人力资本可以解释经济增长;引进人力资本后进一步证明了这一结论。邹卫星 Roger Seifert 房林 2015上海经济研究2015,27,4:3
14胶原水解物及其生物学价值显示文摘肖文君 Jrgen seifert 2010明胶科学与技术2010,30,3:3
15Investigation of impact of DC component on breakdown characteristics for different electric fields under composite AC&DC voltage显示文摘The valve side of the converter in the high‐voltage direct current is subjected to mixed voltages such as composite AC&DC voltage.In this study,the effects of the homo-geneity of electric field on breakdown voltage were investigated for different�DC component amplitudes of the composite voltage.The field efficiency factor was calcu-lated using mean and maximum field strengths for all of them.Variation of breakdown voltage of air was examined under the composite AC&DC voltage for different ratios�DC.As one result of the study,the breakdown occurs at the positive half‐wave of the AC voltage despite−DC voltage being applied due to positive corona discharge pulses.This breakdown point is named as the polarity change point.The breakdown voltage increases with the decrease of DC voltage component up to polarity change point in non‐uniform electric field.In less uniform electric field,the AC breakdown voltage was measured slightly higher than the DC breakdown voltage.In less uniform electric field,as the ratio of the applied AC voltage to DC voltage increases,the breakdown voltage gradually approaches the AC breakdown voltage.This result is similar to the result ob-tained for the+DC component in non‐uniform electric field experiments.Mehmet Murat Ispirli Özcan Kalenderli Florian Seifert Michael Rock Bülent Oral 2022High Voltage2022,7,2:2
16Twist-driven separation of p-type and n-type dopants in single-crystalline nanowires显示文摘The distribution of dopants significantly influences the properties of semiconductors,yet effective modulation and separation of p-type and n-type dopants in homogeneous materials remain challenging,especially for nanostructures.Employing a bond orbital model with supportive atomistic simulations,we show that axial twisting can substantially modulate the radial distribution of dopants in Si nanowires(NWs)such that dopants of smaller sizes than the host atom prefer atomic sites near the NW core,while dopants of larger sizes are prone to staying adjacent to the NW surface.We attribute such distinct behaviors to the twist-induced inhomogeneous shear strain in NW.With this,our investigation on codoping pairs further reveals that with proper choices of codoping pairs,e.g.B and Sb,n-type and p-type dopants can be well separated along the NW radial dimension.Our findings suggest that twisting may lead to realizations of p–n junction configuration and modulation doping in single-crystalline NWs.Dong-Bo Zhang Xing-Ju Zhao Gotthard Seifert Kinfai Tse Junyi Zhu 2019National Science Review2019,6,3:2
17Identification and expression of the genes and purification and characterization of the gene products involved in reactivation of coenzyme B12-dependent glycerol dehydratase of Citrobacter freundii显示文摘Seifert C Bowien S Gottschalk G Eur J Biochem0,20,:2
18Fibroblast Growth Factors and Their Receptors in Urological Cancers: Basic Research and Clinical Implications显示文摘M.V Cronauer W.A Schulz H.-H Seifert R Ackermann M Burchardt 2003European Urology2003,,3:2
19Difference method for analysing infrared images in pigs with elevated body temperatures显示文摘Carsten Siewert Sven D?nicke Susanne Kersten Bianca Brosig Dirk Rohweder Martin Beyerbach Hermann Seifert 2013Zeitschrift für Medizinische Physik2013,,:2
20Early Serum Procalcitonin, Interleukin-6, and 24-Hour Lactate Clearance: Useful Indicators of Septic Infections in Severely Traumatized Patients显示文摘Adrian Billeter Matthias Turina Burkhardt Seifert Ladislav Mica Reto Stocker Marius Keel 2009World Journal of Surgery2009,,3:2
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