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| 1 | Dynamic chromatin states in human ES cells reveal potential regulatory sequences and genes involved in pluripotency显示文摘Pluripotency,一个细胞的能力区分并且产生所有胚胎的系,定义象胚胎的茎(ES ) 那样的哺乳动物的细胞类型的一个小数字细胞。当它通常被保持了时,那 pluripotency 是 transcriptional 的产品激活并且维持关键干细胞基因的表达式的规章的网络,积累的证据在建立并且保卫 ES 房间的 pluripotency 为 epigenetic 进程正在指向一个关键角色,象维持区分的房间类型的身份一样。以便更好在 pluripotency 理解 epigenetic 机制的角色,我们检验了在经历区别进一个 mesendodermal 系的人的 ES 房间(hESCs ) 染色体宽的染色质修正的动力学。我们发现在倡导者的染色质修正在区别期间仍然保持大部分不变,除了在在在 H3K27 的 acetylation 和 methylation 之间的一个动态开关标记在基因表示的激活和 silencing 之间的转变的倡导者的一个小数字,建议在在大多数差别上的房间命运承诺的一个层次表示了基因。我们也在 50 000 潜在的 enhancers 上印射,并且在染色质修正,特别 H3K4me1 和 H3K27ac 观察了大得多的动力学,它与他们的潜在的目标基因的表示相关。这些 enhancers 的进一步的分析揭示了 pluripotency 和可以在 hESCs 授与发展胜任的一个平衡状态的一口染色质签名陈述语气的潜在地关键的 transcriptional 管理者。我们的结果提供在定义 enhancers 和 pluripotency 支持染色质修正的角色的新证据。 | R David Hawkins Gary C Hon Chuhu Yang Jessica E Antosiewicz-Bourget Leonard K Lee Que-Minh Ngo Sarit Klugman Keith A Ching Lee E Edsall Zhen Ye Samantha Kuan Pengzhi Yu Hui Liu Xinmin Zhang Roland D Green Victor V Lobanenkov Ron Stewart James A Thomson Bing Ren | 2011 | Cell Research2011，21，10： | 6 |
| 2 | Intestinal alkaline phosphatase in the colonic mucosa of children with inflammatory bowel disease显示文摘AIM:To investigate intestinal alkaline phosphatase(iAP) in the intestinal mucosa of children with inflammatory bowel disease(IBD).METHODS:Colonic biopsy samples were taken from 15 newly diagnosed IBD patients and from 10 healthy controls.In IBD patients,specimens were obtainedboth from inflamed and non-inflamed areas.The iAP mRNA and protein expression was determined by reverse transcription-polymerase chain reaction and Western blotting analysis,respectively.Tissue localization of iAP and Toll-like receptor(TLR) 4 was investigated by immunofluorescent staining.RESULTS:The iAP protein level in the inflamed mucosa of children with Crohn's disease(CD) and ulcerative colitis(UC) was significantly decreased when compared with controls(both P < 0.05).Similarly,we found a significantly decreased level of iAP protein in the inflamed mucosa in CD compared with non-inflamed mucosa in CD(P < 0.05).In addition,the iAP protein level in inflamed colonic mucosa in patients with UC was decreased compared with non-inflamed mucosa in patients with CD(P < 0.05).iAP protein levels in the non-inflamed mucosa of patients with CD were similar to controls.iAP mRNA expression in inflamed colonic mucosa of children with CD and UC was not significantly different from that in non-inflamed colonic mucosa with CD.Expression of iAP mRNA in patients with noninflamed mucosa and in controls were similar.Co-localization of iAP with TLR4 showed intense staining with a dotted-like pattern.iAP was present in the inflamed and non-inflamed mucosa of patients with CD,UC,and in control biopsy specimens,irrespective of whether it was present in the terminal ileum or in the colon.However,the fluorescent signal of TLR4 was more pronounced in the colon compared with the terminal ileum in all groups studied.CONCLUSION:Lower than normal iAP protein levels in inflamed mucosa of IBD patients may indicate a role for iAP in inflammatory lesions in IBD.Based on our results,administration of exogenous iAP enzyme to patients with the active form of IBD may be a therapeutic option. | Kriszta Molnár dám Vannay Beáta Szebeni Nóra Fanni Bánki Erna Sziksz ron Cseh Hajnalka Gyrffy Péter László Lakatos Mária Papp András Arató Gábor Veres | 2012 | World Journal of Gastroenterology2012，18，25： | 5 |
| 3 | Effects of pretreatment with clopidogrel and aspirin followed by long-term therapy in patients undergoing percutaneous coronary intervention: the PCI-CURE study显示文摘 | Shamir R Mehta Salim Yusuf Ron JG Peters Michel E Bertrand Basil S Lewis Madhu K Natarajan Klas Malmberg Hans-Jürgen Rupprecht Feng Zhao Susan Chrolavicius Ingrid Copland Keith AA Fox | 2001 | The Lancet . 2001 (9281)2001，，9281： | 4 |
| 4 | Characteristics of allergic colitis in breast-fed infants in the absence of cow's milk allergy显示文摘AIM: To investigate the characteristics of mucosal le-sions and their relation to laboratory data and long-term follow up in breast-fed infants with allergic colitis. METHODS: In this study 31 breast-fed infants were prospectively evaluated (mean age, 17.4 wk) whose rectal bleeding had not ceased after a maternal elimi-nation diet for cow's milk. Thirty-four age-matched and breast-fed infants (mean age, 16.9 wk) with no rectal bleeding were enrolled for laboratory testing as con-trols. Laboratory findings, colonoscopic and histological characteristics were prospectively evaluated in infants with rectal bleeding. Long-term follow-up with differ-ent nutritional regimes (L-amino-acid based formula or breastfeeding) was also included. RESULTS: Iron deficiency, peripheral eosinophilia andthrombocytosis were significantly higher in patients with allergic colitis in comparison to controls (8.4±3.2 μmol/L vs 13.7±4.7 μmol/L, P<0.001; 0.67±0.49 G/L vs 0.33±0.17 G/L, P<0.001; 474±123 G/L vs 376±89 G/L, P<0.001, respectively). At colonosco-py, lymphonodular hyperplasia or aphthous ulceration were present in 83% of patients. Twenty-two patients were given L-amino acid-based formula and 8 contin-ued the previous feeding. Time to cessation of rectal bleeding was shorter in the special formula feeding group (mean, 1.4 wk; range, 0.5-3 wk) when com-pared with the breast-feeding group (mean, 5.3 wk; range, 2-9 wk). Nevertheless, none of the patients ex-hibited rectal bleeding at the 3-mo visit irrespective of the type of feeding. Peripheral eosinophilia and cessa-tion of rectal bleeding after administration of elemental formula correlated with a higher density of mucosal eosinophils. CONCLUSION: Infant hematochezia, after cow's milk allergy exclusion, is generally a benign and probably self-limiting disorder despite marked mucosal abnor-mality. Formula feeding results in shorter time to cessa-tion of rectal bleeding; however, breast-feeding should not be discouraged in long-lasting hematochezia. | Kriszta Molnár Petra Pintér Hajnalka Gyrffy ron Cseh Katalin Eszter Müller András Arató Gábor Veres | 2013 | World Journal of Gastroenterology2013，19，24： | 3 |
| 5 | 人参减少 γ射线照射的淋巴细胞微核量(英文)显示文摘目的 评价中国人参对减少辐射诱导的人周围血 G0 期淋巴细胞 (PBL)微核量的作用。方法 采用细胞因子阻滞的微核法检测健康志愿者的血标本。体外 1 37Cs照射之前 ,每份血标本的单个核细胞培养以不同浓度 (0~ 2 0 0 0μg· m l- 1 )的人参根水提取物孵育 2 4 h。结果 (1)在 0 Gy时 ,每 10 0 0个双核 (BN )细胞的微核量是 11.3± 2 .7,人参水提取物≥ 5 0 0μg· ml- 1 时微核量下降 ,但微核量和人参水提取物的浓度之间的差异是显著的。 (2 )单独射线照射显著增加微核量 ,当暴露于 1Gy的照射时 ,随着培养介质中人参水提取物浓度的增加 ,微核量呈显著的线性降低 (R2 =0 .0 5 ,P =0 .0 0 2 ) ;对暴露于 1Gy辐射诱导的微核量 ,人参水提取物浓度在 15 0 0μg· m l- 1 时减少 4 6 .6 % ,浓度在 2 0 0 0μg·m l- 1时减少 5 7.6 % ;对暴露于 2 Gy辐射诱导的微核量的减少呈更强的线性相关 (R2 =0 .7,P=0 .0 0 0 1) ;(3)微核数据分析的结果呈现出与 Poisson模型相关的过度离散趋势。结果表明 :(1)人参水提取物浓度达 2 0 0 0 μg· ml- 1时 ,对 PBL 细胞毒作用无明显影响 ;(2 )人参水提取物浓度在 5 0 0 μg· ml- 1和 2 0 0 0 μg· ml- 1之间时 ,对抗 1 37Cs照射诱导的 MN发挥保护作用。 | 李同光 Ron R Allison Kevin F O'Brien Prabhaker G Khazanie Larry J Dobbs Jr. Peter J Kragel | 2004 | 新乡医学院学报2004，21，3： | 3 |
| 6 | Inflammatory bowel disease patient profiles are related to specific information needs: A nationwide survey显示文摘BACKGROUND Inflammatory bowel diseases(IBD) is a heterogenous, lifelong disease, with an unpredictable and potentially progressive course, that may impose negative psychosocial impact on patients.While informed patients with chronic illness have improved adherence and outcomes, previous research showed that the majority of IBD patients receive insufficient information regarding their disease.The large heterogeneity of IBD and the wide range of information topics makes a one-size fits all knowledge resource overwhelming and cumbersome.We hypothesized that different patient profiles may have different and specific information needs, the identification of which will allow building personalized computer-based information resources in the future.AIM To evaluate the scope of disease-related knowledge among IBD patients and determine whether different patient profiles drive unique information needs.METHODS We conducted a nationwide survey addressing hospital-based IBD clinics.A Total of 571 patients completed a 28-item questionnaire, rating the amount of information received at time of diagnosis and the importance of information, as perceived by participants, for a newly diagnosed patient, and for the participants themselves, at current time.We performed an exploratory factor analysis of the crude responses aiming to create a number of representative knowledge domains(factors), and analyzed the responses of a set of 15 real-life patient profiles generated by the study team.RESULTS Participants gave low ratings for the amount of information received at disease onset(averaging 0.9/5) and high ratings for importance, both for the newly diagnosed patients(mean 4.2/5) and for the participants themselves at current time(mean 3.5/5).Factor analysis grouped responses into six informationdomains.The responses of selected profiles, compared with the rest of the participants, yielded significant associations(defined as a difference in rating of >0.5 points with a P < 0.05).Patients with active disease showed a higher interest in work-disability, stress-coping, and therapy-complications.Patients newly diagnosed at age > 50, and patients with long-standing disease(> 10 years)showed less interest in work-disability.Patients in remission with mesalamine or no therapy showed less interest in all domains except for nutrition and long-term complications.CONCLUSION We demonstrate unmet patient information needs.Analysis of various patient profiles revealed associations with specific information topics, paving the way for building patient-tailored information resources. | Saleh Daher Tawfik Khoury Ariel Benson John R Walker Oded Hammerman Ron Kedem Timna Naftali Rami Eliakim Ofer Ben-Bassat Charles N Bernstein Eran Israeli | 2019 | World Journal of Gastroenterology2019，25，30： | 3 |
| 7 | Is there evidence of selection in the dopamine receptor D4 gene in Australian invasive starling populations?显示文摘 | Lee Ann ROLLINS Michael R. WHITEHEAD Andrew R WOOLNOUGH Ron SINCLAIR William B. SHERWIN | 2015 | Current Zoology2015，61，3： | 2 |
| 8 | The structure of finitely generated shift-invariant spaces in L2 (Rd) 显示文摘 | De BOOR C De VORE R RON A | 1994 | Journal of Functional Analysis1994，119，1： | 1 |
| 9 | Multiple primary breast andthyroid cancer 显示文摘 | Ron E Curtis R Hoffman DA | 1984 | Br J Cancer1984，49，1： | 1 |
| 10 | Excessive alcohol consumption is blocked by glial cell line-derived neurotrophic factor显示文摘 | Carnicella S Amamoto R Ron D | 2009 | Alcohol2009，43，1： | 1 |
| 11 | Membrane lipid satu- ration activates endoplasmic reticulum unfolded protein response transducers through their transmembrane do- mains显示文摘 | Volmer R van der Ploeg K Ron D | 2013 | Proc Natl Acad Sci USA2013，，12： | 1 |
| 12 | Technology foresight for wiring up the national innovation system experiences in Britain, Australia, and New Zealand 显示文摘 | BEN R M RON J | 1999 | Technological Forecasting and Social Change1999，，60： | 1 |
| 13 | Host specificity of septicemic Escherichia coli : Human and avian pathogens 显示文摘 | Ron R Z | 2006 | Current Opinions in Microbiology2006，9，： | 1 |
| 14 | Z-tenotomy of the superior oblique tendon and horizontal rectus muscle surgery for A-pattern horizontal strabismus显示文摘 | Ron Y Snir M Axer-Seigel R | 2009 | J AAPOS2009，13，1： | 1 |
| 15 | Experimental studies on the role of backfill and pipeline characteristics in the application of acoustic leak location to under around pipelines显示文摘 | Clark M Amanda Rewerts Lance E Robbers Ron R | 1997 | Review of Progress in Quantitative Non-destructive Evaluation1997，16，4： | 1 |
| 16 | Safety and efficacy of the vi- brating capsule, an innovative non-pharmacological treatment mo- dality for chronic constipation 显示文摘 | Ron Y Halpem Z Safadi R | 2015 | Neurogastroenterol Motil2015，27，1： | 1 |
| 17 | Enhancement of consoli- dated long-term memory by overexpression of protein kinase M~ in the neocortex显示文摘 | Shema R Haramati S Ron S | 2011 | Science2011，331，6021： | 1 |
| 18 | Block Rotation by Strike-Slip Faulting z Structural and Paleomagnetic Evidence 显示文摘 | Ron H Freund R Garfunkel Z | 1984 | Journal of Geophysical Research1984，89，： | 1 |
| 19 | Impact of ultrafiltration and nanofiltration of an industrial fish protein hydrolysate on its bioactive properties显示文摘 | Picot L Ravallec R Fouchereau-Péron M | 2010 | Journal of the Science of Food and Agriculture2010，90，11： | 1 |
| 20 | 成人2型糖尿病不同筛查及预防策略成本效益分析显示文摘目的 比较针对2型糖尿病预防及治疗的4种筛查策略及随后予以的干预措施:(a)筛查2型糖尿病患者使其能接受早期检查及治疗,(b)筛查2型糖尿病和糖耐量受损患者,对糖耐量受损的人群予以生活方式干预以延缓或预防糖尿病的发生,(c)同(b)但予以药物干预措施,(d)不筛查。
设计 成本效益决策分析建立在对概率的发展和评估基础上,是从筛查到死亡的综合性经济决策分析模型。
研究对象 一组假设人群,筛查时年龄45岁,高于平均糖尿病风险水平。
数据来源 电子书目数据库收录的已发表的临床试验和流行病学研究;补充数据分别来自英国和威尔士健康统计署、风险筛查(STAR)研究和ADDITION研究的Leicester部分。
方法 建立一种决策树/Markov混合模型,以模拟每一种筛查策略的长期效用,包括临床和成本效益终点。该模型假设水平跨度为50年时间,其成本效益折损率为3.5%。采用敏感度分析以验证模型假设及确定哪种模型数据输入对结果的影响最大。
结果 与不筛查策略比较,筛查2型糖尿病、筛查糖尿病和糖耐量受损并予以生活方式干预、筛查糖尿病和糖耐量受损并予以药物干预治疗3种策略,每获得一个质量调整生命年(QALY)估计所需成本分别为(每年成本效益贴现率为3.5%)14150英镑(17560欧元;27860美元)、6242英镑和7023英镑。在支付意愿阈值为20000英镑时,各主动筛查策略通过干预产生的成本效益概率分别为49%,93%和85%。
结论 对年龄45岁、高于平均风险水平的人群进行2型糖尿病和糖耐量受损的筛查,并对糖耐量受损人群予以适当的干预似乎具有很好的成本效益。单独筛查糖尿病而不对糖耐量受损人群予以干预的策略具有的成本效益仍不确定,需要进一步研究确定早期检测糖尿病的作用。 | Clare L Gillies Paul C Lambert Keith R Abrams Alex J Sutton Nicola J Cooper Ron T Hsu Melanie J Davies Kamlesh Khunti 张晓梅(译) 纪立农(校) | 2008 | 英国医学杂志中文版2008，11，5： | 1 |
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