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| 1 | Evaluation of the anti-diabetic properties of Mucuna pruriens seed extract显示文摘Objective:To explore the antidiabetic properties of Mucuna pruriens(M.pruriens).Methods: Diabetes was induced in Wistar rats by single intravenous injection of 120 mg/kg of alloxan monohydrate and different doses of the extract were administered to diabetic rats.The blood glucose level was determined using a glucometer and results were compared with normal and untreated diabetic rats.The acute toxicity was also determined in albino mice.Results:Results showed that the administration of 5,10,20,30,40,50,and 100 mg/kg of the crude ethanolic extract of M.pruriens seeds to alloxan-induced diabetic rats(plasma glucose > 450 mg/dL) resulted in 18.6%,24.9%,30.8%,41.4%,49.7%,53.1%and 55.4%reduction,respectively in blood glucose level of the diabetic rats after 8h of treatment while the administration of glibenclamide (5 mg/kg/day) resulted in 59.7%reduction.Chronic administration of the extract resulted in a significant dose dependent reduction in the blood glucose level(P<0.001).It also showed that the antidiabetic activity of M.pruriens seeds resides in the methanolic and ethanolic fractions of the extract.Acute toxicity studies indicated that the extract was relatively safe at low doses,although some adverse reactions were observed at higher doses(8-32 mg/kg body weight),no death was recorded.Furthermore,oral administration of M.pruriens seed extract also significandy reduced the weight loss associated with diabetes.Conclusions:The study clearly supports the traditional use of M.pruriens for the treatment of diabetes and indicates that the plant could be a good source of potent antidiabetic drug. | Stephen O Majekodunmi Ademola A Oyagbemi Solomon Umukoro Oluwatoyin A Odeku | 2011 | Asian Pacific Journal of Tropical Medicine2011,4,8: | 8 |
| 2 | Computed tomography and patient risk:Facts,perceptions and uncertainties显示文摘Since its introduction in the 1970s, computed tomography(CT) has revolutionized diagnostic decision-making. One of the major concerns associated with the widespread use of CT is the associated increased radiation exposure incurred by patients. The link between ionizing radiation and the subsequent development of neoplasia has been largely based on extrapolating data from studies of survivors of the atomic bombs dropped in Japan in 1945 and on assessments of the increased relative risk of neoplasia in those occupationally exposed to radiation within the nuclear industry. However, the association between exposure to low-dose radiation from diagnostic imaging examinations and oncogenesis remains unclear. With improved technology, significant advances have already been achieved with regards to radiation dose reduction. There are several dose optimization strategies available that may be readily employed including omitting unnecessary images at the ends of acquired series, minimizing the number of phases acquired, and the use of automated exposure control as opposed to fixed tube current techniques. In addition, new image reconstruction techniques that reduce radiation dose have been developed in recent years with promising results. These techniques use iterative reconstruction algorithms to attain diagnostic quality images with reduced image noise at lower radiation doses. | Stephen P Power Fiachra Moloney Maria Twomey Karl James Owen J O'Connor Michael M Maher | 2016 | World Journal of Radiology2016,8,12: | 7 |
| 3 | Panitumumab and irinotecan versus irinotecan alone for patients with KRAS wild-type, fluorouracil-resistant advanced colorectal cancer (PICCOLO): a prospectively stratified randomised trial显示文摘 | Matthew T Seymour Sarah R Brown Gary Middleton Timothy Maughan Susan Richman Stephen Gwyther Catherine Lowe Jennifer F Seligmann Jonathan Wadsley Nick Maisey Ian Chau Mark Hill Lesley Dawson Stephen Falk Ann O’Callaghan Kim Benstead Philip Chambers Alfred | 2013 | Lancet Oncology2013,,8: | 6 |
| 4 | Evolution of indications and results of liver transplantation in Europe. A report from the European Liver Transplant Registry (ELTR)显示文摘 | René Adam Vincent Karam Valérie Delvart John O’Grady Darius Mirza Jurgen Klempnauer Denis Castaing Peter Neuhaus Neville Jamieson Mauro Salizzoni Stephen Pollard Jan Lerut Andreas Paul Juan Carlos Garcia-Valdecasas Fernando San Juan Rodríguez Andrew Burro | 2012 | Journal of Hepatology2012,,3: | 6 |
| 5 | Targeting chronic lymphocytic leukemia cells in the tumor microenviroment: A review of the in vitro and clinical trials to date显示文摘Chronic lymphocytic leukemia(CLL) is the most common leukemia in the western world. Despite significantadvances in therapy over the last decade CLL remains incurable. Current front-line therapy often consists of chemoimmunotherapy-based regimens, most commonly the fludarabine, cyclophosphamide plus rituximab combination, but rates of relapse and refractory disease are high among these patients. Several key signaling pathways are now known to mediate the survival and proliferation of CLL cells in vivo, the most notable of which are the pathways mediated by the B-cell receptor(BCR) and cytokine receptors. A better understanding of the pathogenesis of the disease, the underlying biology of the CLL-cell and the roles of the tumour microenvironment has provided the rationale for trials of a range of novel, more targeted therapeutic agents. In particular, clinical trials of ibrutinib and idelalisib, which target the Brutons tyrosine kinase and the delta isoform of phosphoinositol-3 kinase components of the BCR signaling pathway respectively, have shown extremely promising results. Here we review the current literature on the key signaling pathways and interactions of CLL cells that mediate the survival and proliferation of the leukemic cells. For each we describe the results of the recent clinical trials and in vitro studies of novel therapeutic agents. | Kyle Crassini Stephen P Mulligan O Giles Best | 2015 | World Journal of Clinical Cases2015,3,8: | 5 |
| 6 | Tube feeding,the microbiota,and Clostridium diff icile infection显示文摘Clostridium difficile (C. difficile) is now the leading cause of nosocomial diarrhea in the USA, accounting for 30% of patients with antibiotic-associated diarrhea, 70% of those with antibiotic-associated colitis, and most cases of pseudomembranous colitis. The organism has evolved over the last 8 years to become more virulent and resistant to antimicrobials (NAP1/027 strain) causing a more severe form of the disease that has increased mortality and healthcare costs. While it is generally accepted that the problem results from the overuse of antibiotics, and in particular second and third generation cephalosporins, fluoroquinolones and macrolides, recent studies suggest that acid suppres-sion with proton pump inhibitors (PPIs) may be equally culpable. A further common, but less recognized, etiological factor is the prolonged use of elemental diets. Such diets are totally absorbed within the small intestine and therefore deprive the colonic microbiota of their source of nutrition, namely dietary fiber, fructose oligosaccharides, and resistant starch. The resultant suppression of colonic fermentation leads to suppression of the 'good' bacteria, such as butyrate-producers (butyrate being essential for colonic mucosal health), and bifidobacteria and the creation of a 'permissive' environment for C. difficile colonization and subsequent infection. Based on this analysis, the best chance of suppressing the emerging C. difficile epidemic is to adopt a 3-pronged attack consisting of (1) avoidance of the use of prophylactic antibiotics, (2) the avoidance of prophylactic PPIs, and (3) the conversion of elemental diet feeding to a diet containing adequate indigestible carbohydrate after the first week of critical illness. In this review, we highlight the rising worldwide incidence of C. difficile associated diarrhea and the role played by non-residue diets in destabilizing the colonic microbiota. | Stephen JD O'Keefe | 2010 | World Journal of Gastroenterology2010,16,2: | 4 |
| 7 | The value of the world’s ecosystem services and natural capital显示文摘 | Robert Costanza Ralph d’Arge Rudolf de Groot Stephen Farber Monica Grasso Bruce Hannon Karin Limburg Shahid Naeem Robert V. O’Neill Jose Paruelo Robert G. Raskin Paul Sutton Marjan van den Belt | 1998 | Ecological Economics1998,,1: | 4 |
| 8 | 老年人处方遗漏筛查工具第2版(中文版)显示文摘近年来我国老年人口数量迅速增加,2013年老年人口突破2亿大关。老年人常伴有多种疾病且同时服用多种药物,容易出现药物相互作用和药物不良反应,所以老年人用药问题是医务人员关注的重点。老年人不适当用药问题主要包括两个方面:老年人需要避免使用的药物和老年人需要使用而未使用的药物。 | Denis O'Mahony David O'Sullivan Stephen Byrne Marie Noelle O'Connor Cristin Ryan Paul Gallagher 侯凯旋 邢晓璇 闫素英 | 2017 | 药物不良反应杂志2017,19,5: | 4 |
| 9 | 应用鼻咽癌家系资料评估HLA三座位单倍型软件推算方法的研究显示文摘目的通过家系资料,对比分析不同统计学单倍型推算方法在HLA-A—B—C三基因座位单倍型推算运用中的准确性及有效性。方法选择558例有完整家系资料的个体,通过SAS/Genetics、Arlequin遗传学分析软件的EM算法、ELB算法分别进行单倍体确认,计算个体单倍型频率,并与家系分析结果相比较。结果558例研究个体中,SAS/Genetics、Adequin遗传学分析软件的EM算法、ELB算法分别估算得到248、247和238种单倍型,推算准确率分别为88.5%、89.1%,90.3%。3种软件推算方法得到的单倍型推算准确性、最常见单倍型分布差异无统计学意义。结论运用统计学推算软件进行群体数据的单倍型推算可获得较高的准确性,3种算法得到的常见单倍型频率差异无统计学意义。但总体来说,ELB算法更加准确。 | 汤敏中 李军 蔡永林 郑裕明 廖建 曾洪 O'BRIEN Stephen 曾毅 | 2012 | 中华实验和临床病毒学杂志2012,26,4: | 3 |
| 10 | Effect of fiber supplementation on the microbiota in critically ill patients显示文摘AIM:To determine tolerance to fiber supplementation of semi-elemental tube feeds in critically ill patients and measure its effect on colonic microbiota and fermentation.METHODS:Thirteen intensive care unit patients receiving jejunal feeding with a semi-elemental diet for predominantly necrotizing pancreatitis were studied.The study was divided into 2 parts:first,short-term (3-9 d)clinical tolerance and colonic fermentation as assessed by fecal short chain fatty acid(SCFA)concentrations and breath hydrogen and methane was measured in response to progressive fiber supplementation increasing from 4 g tid up to normal requirement levels of 8 g tid;second,4 patients with diarrhea were studied for 2-5 wk with maximal supplementation to additionally assess its influence on fecal microbiota quantitated by quantitative polymerase chain reaction (qPCR)of microbial 16S rRNA genes and Human Intestinal Tract Chip(HITChip)microarray analysis.Nearly all patients were receiving antibiotics(10/13)and acid suppressants(11/13)at some stage during the studies.RESULTS:In group 1,tolerance to progressive fiber supplementation was good with breath hydrogen and methane evidence(P=0.008 and P<0.0001,respectively)of increased fermentation with no exacerbation of abdominal symptoms and resolution of diarrhea in 2 of 4 patients.In group 2 before supplementation,fecal microbiota mass and their metabolites,SCFA,were dramatically lower in patients compared to healthy volunteers.From qPCR and HITChip analyses we calculated that there was a 97%reduction in the predominant potential butyrate producers and starch degraders.Following 2-5 wk of fiber supplementation there was a significant increase in fecal SCFA(acetate 28.4±4.1μmol/g to 42.5±3.1μmol/g dry weight,P=0.01;propionate 1.6±0.5 vs 6.22±1.1,P=0.006 and butyrate 2.5±0.6 vs 5.9±1.1,P=0.04)and microbial counts of specific butyrate producers,with resolution of diarrhea in 3 of 4 patients.CONCLUSION:Conventional management of critically ill patients,which includes the use of elemental diets and broad-spectrum antibiotics,was associated with gross suppression of the colonic microbiota and their production of essential colonic fuels,i.e.,SCFA.Our investigations show that fiber supplementation of the feeds has the potential to improve microbiota mass and function,thereby reducing the risks of diarrhea due to dysbiosis. | Stephen JD O'Keefe Junhai Ou James P DeLany Scott Curry Erwin Zoetendal H Rex Gaskins Scott Gunn | 2011 | World Journal of Gastrointestinal Pathophysiology2011,2,6: | 3 |
| 11 | Impact of enclosure management on soil properties and microbial biomass in a restored semi-arid rangeland, Kenya显示文摘Rangeland degradation is a serious problem throughout sub-Saharan Africa and its restoration is a challenge for the management of arid and semi-arid areas. In Lake Baringo Basin of Kenya, communities and individual farmers are restoring indigenous vegetation inside enclosures in an effort to combat severe land degradation and address their livelihood problems. This study evaluated the impact of enclosure management on soil properties and microbial biomass, being key indicators of soil ecosystem health. Six reseeded communal enclosures using soil embankments as water-harvesting structures and strictly regulated access were selected, varying in age from 13 to 23 years. In six private enclosures, ranging from 3 to 17 years in age, individual farmers emulated the communal enclosure strategy and restored areas for their exclusive use. Significant decreases in bulk density, and increases in the soil organic carbon, total nitrogen and microbial biomass contents and stocks were found in the enclosures as compared with the degraded open rangeland. In the private enclosures, the impact of rehabilitation on the soil quality was variable, and soil quality was in general lower than that obtained under communal management. The significant increase of absolute stocks of carbon, nitrogen and microbial biomass compared to the degraded open rangeland indicates the potential for the restoration of soil quality through range rehabilitation. Over-sowing with indigenous legume fodder species could improve total nitrogen content in the soil and nutritional value of the pastures as well. | Stephen M MUREITHI Ann VERDOODT Charles KK GACHENE Jesse T NJOKA Vivian O WASONGA Stefaan De NEVE Elizabeth MEYERHOFF Eric Van RANST | 2014 | Journal of Arid Land2014,6,5: | 3 |
| 12 | Hepatitis B infection among adults in the philippines:A national seroprevalence study显示文摘AIM:To determine the prevalence of hepatitis B surface antigen(HBsAg)seropositivity among adult Filipinos.METHODS:Testing for HBsAg was performed on serum samples from persons aged ≥ 20 years old who participated in the National Nutrition and Health Survey(NNHeS)conducted in 2003.Information on age,sex,marital status,educational attainment,employment status,and income were collected.For this study,marital status was classified as never married or otherwise(i.e.,married,divorced,separated,widowed);educational attainment was classified as high school graduate or below or at least some tertiary education;and employment status was classified as currently employed or currently unemployed.Annual income was divided into 4 quartiles in Philippine pesos(PhP):Q1,≤ PhP 53064;Q2,PhP 53065-92192;Q3,PhP 92193-173387;and Q4,≥ PhP 173388.Prevalence estimates were weighted so that they represented the general population.Social and demographic factors were correlated with HBsAg seropositivity.Multivariate analysis was used to determine independent predictors of HBsAg seropositivity.RESULTS:A total of 2150 randomly selected adults,20 years and over,out of the 4753 adult participants of NNHeS were tested for HBsAg.The HBsAg seroprevalence was 16.7%(95%CI:14.3%-19.1%),which corresponded to an estimated 7278968 persons infected with hepatitis B.There was no significant difference between males and females(17.5% vs 16.0%;P = 0.555).This corresponded to an estimated 3721775 men and 3557193 women infected with hepatitis B.The HBsAg seroprevalence peaked at age 20-39 years old,with declining prevalence in the older age groups.The only independent predictor of HBsAg seropositivity was the annual income,with persons in the highest income quartile being less likely to be HBsAg positive(age-adjusted OR = 0.51;95%CI:0.30-0.86)compared to subjects in the lowest income quartile.Sex,marital status,educational attainment,and employment status were not found to be independent predictors of HBsAg seropositivity.CONCLUSION:The high HBsAg seroprevalence among adults in the Philippines classifies the country as hyperendemic for HBV infection and appears unchanged over the last few decades. | Stephen N Wong Janus P Ong Madalinee Eternity D Labio Oscar T Cabahug Maria Lourdes O Daez Erlinda V Valdellon Jose D Sollano Jr Marilyn O Arguillas | 2013 | World Journal of Hepatology2013,5,4: | 3 |
| 13 | Evolution of liver transplantation in Europe: Report of the European Liver Transplant Registry显示文摘 | René Adam Paul McMaster John G. O’Grady Denis Castaing Jurgen L. Klempnauer Neville Jamieson Peter Neuhaus Jan Lerut Mauro Salizzoni Stephen Pollard Ferdinand Muhlbacher Xavier Rogiers Juan Carlos Garcia Valdecasas Joaquin Berenguer Daniel Jaeck Enrique M | 2003 | Liver Transplantation2003,,12: | 2 |
| 14 | Competing through service: Insights from service-dominant logic显示文摘 | Robert F. Lusch Stephen L. Vargo Matthew O’Brien | 2006 | Journal of Retailing2006,,1: | 2 |
| 15 | 4号染色体短臂微卫星多态性与鼻咽癌相关性的研究显示文摘鼻咽癌(NPC)是一种多因素复杂疾病。其发病过程涉及EB病毒慢性感染、环境致癌因素及宿主基因之间的相互作用。在这一过程中,那些宿主基因在EB病毒感染及鼻咽癌的发生发展中起了关键作用仍不清楚。本研究的目的是发现与鼻咽癌发生发展中两个关键步骤相关的遗传变异,即EB病毒持续性感染鼻咽部上皮细胞和鼻咽癌的形成。我们在广西梧州市及苍梧县鼻咽癌高发区收集汉族鼻咽癌患者350例、EB病毒壳抗原IgA抗体阳性者(IgA/VCA+)288例和EB病毒壳抗原IgA抗体阴性者(IgA/VCA—)346例。对先前鼻咽癌家系研究显示的鼻咽癌易感区4号染色体短臂(4p15.1~q12)进行了微卫星精细扫描,在18Mb的范围内选择34个微卫星标记,包括319个等位基因,对其进行基因分型。比较分析NPC组和IgA/VCA+组等位基因频率结果显示,9个等位基因与鼻咽癌呈相关,其中5个为易感等位基因(OR=1.51~5.36,P=0.01~0.03),4个为限制性等位基因(OR值为0.3~0.71,P值为0.02~0.045)。比较分析IgA/VCA+组和IgA/VCA-组及比较所有IgA/VCA+者(包括NPC患者)和IgA/VCA-者等位基因频率的结果显示,12个等位基因与EB病毒壳抗原IgA抗体持续存在相关,其中3个在两组比较中均呈显著相关。等位基因D4S3241~136(P=0.004,OR=1.9,95%CI=1.2~3.0)和D4S3347-213(P=0.001,OR=1.6,95%CI=1.2~2.1)可增加EB病毒IgA/VCA抗体形成的危险,为易感基因;而等位基因D4S174.202(P=0.001,OR=0.5,95%CI=0.3~0.7)可限制IgA/VCA抗体的形成。但上述结果经多因素比较校正后,均失去相关性。结果不能确定该区域与非家族性鼻咽癌的形成相关,但本研究却提供了进一步发现鼻咽癌相关基因的研究模式。有关4号染色体短臂与EB病毒慢性持续感染及鼻咽癌的形成仍值得进一步深入研究。 | 郭秀婵 O’BRIEN Stephen J WINKLER Cheryl SCOTT Kevin HUTCHESON Holli DAVID Victor KESSING Bailey 郑裕明 廖建 刘彦 GUY de The 曾毅 | 2006 | 遗传2006,28,7: | 2 |
| 16 | Risk factor management and depression post-stroke: The value of an integrated model of care显示文摘 | Jacques Joubert Chris Reid Lynette Joubert David Barton Denise Ruth David Jackson John O’. Sullivan Stephen M. Davis | 2005 | Journal of Clinical Neuroscience2005,,1: | 2 |
| 17 | Evolution of liver transplantation in Europe: Report of the European Liver Transplant Registry显示文摘 | René Adam Paul McMaster John G. O’Grady Denis Castaing Jurgen L. Klempnauer Neville Jamieson Peter Neuhaus Jan Lerut Mauro Salizzoni Stephen Pollard Ferdinand Muhlbacher Xavier Rogiers Juan Carlos Garcia Valdecasas Joaquin Berenguer Daniel Jaeck Enrique M | 2003 | Liver Transplantation2003,,12: | 2 |
| 18 | Systemic chemotherapy with or without cetuximab in patients with resectable colorectal liver metastasis: the New EPOC randomised controlled trial显示文摘 | John Primrose Stephen Falk Meg Finch-Jones Juan Valle Derek O’Reilly Ajith Siriwardena Joanne Hornbuckle Mark Peterson Myrddin Rees Tim Iveson Tamas Hickish Rachel Butler Louise Stanton Elizabeth Dixon Louisa Little Megan Bowers Sian Pugh O James Garden D | 2014 | Lancet Oncology2014,,6: | 2 |
| 19 | Studies on the anti-asthmatic and antitussive properties of aqueous leaf extract of Bryophyllum pinnatum in rodent species显示文摘Objective:To evaluate the antiasthmatic and antitussive properties of the aqueous leaf extract of Bryophyilum pinnatum {B.pinnatum)(BP) Lam.Methods:Ovalbiunin-sensilized guinea pigs which were treated with BP for 21 consecutive days were exposed to 0.2%histamine aerosol in a glass chamber.Mucus viscosity,white blood cell and lymphocyte counts and tracheal wall morphometry were measured.Bouts of cough were counted pre and post acute exposure of extract-treated(X7 d) guinea pigs to 7.5%citric acid aerosol in a chamber.Phenol red expectoration was estimated in mice after 7 d of daily administration of BP.Results:Doses of 200 and 400 mg/kg/day(×21 d) BP significantly increased the time for guinea pigs to experience preconvulsive dyspnoea.BP and salbutamol(0.5 mg/kg/day×21 d) reduced mucus viscosity in the sensitized group to values comparable with controls.White blood cell,lymphocyte counts and tracheal morphometry were not significantly altered.Both doses of BP also significantly reduced the bouts of cough but only 400 mg/kg/day significantly inhibited the amount of phenol red secreted.Conclusions:BP has demonstrated antiasthmatic and antitussive properties in these rodent models.These properties may underscore its use in Nigerian ethnomedicine. | Edward O Salami Raymond I Ozolua Stephen O Okpo Gerald I Eze Dickson O Uwaya | 2013 | Asian Pacific Journal of Tropical Medicine2013,6,6: | 2 |
| 20 | Incidence, predictors at admission, and impact of worsening renal function among patients hospitalized with heart failure显示文摘 | Daniel E. Forman Javed Butler Yongfei Wang William T. Abraham Christopher M. O’Connor Stephen S. Gottlieb Evan Loh Barry M. Massie Michael W. Rich Lynne Warner Stevenson James B. Young Harlan M. Krumholz | 2004 | Journal of the American College of Cardiology2004,,1: | 2 |