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| 1 | 限制热量摄入6个月对超重者寿命指标、代谢调节及氧化应激的影响——随机对照试验AuthorAffiliations:PenningtonBiomedicalResearchCenter.LouisianaStateUniversity.BatonRouge;andGarvan.InstituteforMedicalResearch.Dadinghurst,AustraIia(DrHeilbronn).显示文摘背景:长期限制热量摄入可延长啮齿类动物的寿命。但是,尚未有研究观测长期限制人体热量是否会影响其寿命及氧化应激指标,降低代谢率。
目的:在超重但不肥胖(体重指数为25—30)的人群中研究限制热量6个月伴/不伴运动对其产生的影响。
设计、地点及参试者:于2002年3月至2004年8月在位于路易斯安娜州首府巴顿鲁治的研究中心对48名不好动的健康人进行随机对照研究。
干预:参试者在6个月内随机分为4个组:对照组(饮食可维持体重);限制热量组(限制基线所需能量的25%);限制热量+运动组(限制12.5%的热量+运动增加12.5%的能耗);极低热量饮食组(每日摄入890keal,直至体重减少15%,随后采用维持体重的饮食)。
主要观测指标:机体组成;硫酸脱氢表雄酮(dehydroepiandrostemne sulfate,DHEAS)、葡萄糖及胰岛素水平;蛋白羰基化合物;DNA损伤;24小时能耗;核心体温。
结果:6个月时各组体重变化的均值(标准误)为:对照组-1.0%(1.1%);限制热量组-10.4%(0.9%);限制热量+运动组-10.0%(0.8%);极低热量饮食组-13.9%(0.7%)。6个月时,各干预组空腹血糖水平较基线明显降低(P均〈0.01),而DHEAS和葡萄糖水平没有改变。限制热量组及限制热量+运动组核心体温有所下降(P均〈0.05)。对机体组成进行校正后发现,对照组24小时静息能耗无变化,但限制热量组(-135kcal/d[42kcal/d])、限制热量+运动组(-117kcal/d[52kcal/d])和极低热量饮食组(-125kcal/d[35kcal/d])24小时静息能耗有所下降(P均〈0.008)。上述“代谢调节”(超出预计值的-6%)与对照组相比存在显著差异(P〈0.05)。6个月时,各组蛋白羰基化合物的浓度较基线时无变化,而各干预组DNA损伤有所减少(P〈0.005)。
结论:我们的研究结果显示,长期限制热量可降低人类寿命的2种指标(即空腹胰岛素水平和体温)。此外,我们的研究结果还支持下述理论,即限制热量能降低代谢率,且超过缩小代谢面积产生的相应效应。我们尚需开展远期研究来评价限制热量能否延缓人类衰老过程。 | Leonie K. Heibronn Lilian de Jonge Madlyn I. Frisard James P. DeLany D. Enette Larson-Meyer Jennifer Rood Tuong Nguyen Corby K. Martin Julia Volaufova Marlene M. Most Frank L. Greenway Steven R. Smith Walter A. Deutsch Donald A. Williamson Eric Ravussin 顾佳(译) | 2006 | 美国医学会杂志(中文版)2006,25,5: | 18 |
| 2 | Encapsulating peritoneal sclerosis显示文摘Encapsulating peritoneal sclerosis(EPS) is a debilitating condition characterized by a fibrocollagenous membrane encasing the small intestine, resulting in recurrent small bowel obstructions. EPS is most commonly associated with long-term peritoneal dialysis, though medications, peritoneal infection, and systemic inflammatory disorders have been implicated. Many cases remain idiopathic. Diagnosis is often delayed given the rarity of the disorder combined with non-specific symptoms and laboratory findings. Although cross-sectional imaging with computed tomography of the abdomen can be suggestive of the disorder, many patients undergo exploratory laparotomy for diagnosis. Mortality approaches 50% one year after diagnosis. Treatment for EPS involves treating the underlying condition or eliminating possible inciting agents(i.e. peritoneal dialysis, medications, infections) and nutritional support, frequently with total parenteral nutrition. EPSspecific treatment depends on the disease stage. In the inflammatory stage, corticosteroids are the treatment of choice, while in the fibrotic stage, tamoxifen may be beneficial. In practice, distinguishing between stages may be difficult and both may be used. Surgical intervention, consisting of peritonectomy and enterolysis, is timeconsuming and high-risk and is reserved for situations in which conservative medical therapy fails in institutions with surgical expertise in this area. Herein we review the available literature of the etiology, pathogenesis, diagnosis, and treatment of this rare, but potentially devastating disease. | Christopher J Danford Steven C Lin Martin P Smith Jacqueline L Wolf | 2018 | World Journal of Gastroenterology2018,24,28: | 13 |
| 3 | Evolution of stereoscopic imaging in surgery and recent advances显示文摘In the late 1980s the first laparoscopic cholecystectomies were performed prompting a sudden rise in technological innovations as the benefits and feasibility of minimal access surgery became recognised.Monocular laparoscopes provided only two-dimensional(2D) viewing with reduced depth perception and contributed to an extended learning curve.Attention turned to producing a usable three-dimensional(3D) endoscopic view for surgeons;utilising different technologies for image capture and image projection.These evolving visual systems have been assessed in various research environments with conflicting outcomes of success and usability,and no overall consensus to their benefit.This review article aims to provide an explanation of the different types of technologies,summarise the published literature evaluating 3D vs 2D laparoscopy,to explain the conflicting outcomes,and discuss the current consensus view. | Katie Schwab Ralph Smith Vanessa Brown Martin Whyte Iain Jourdan | 2017 | World Journal of Gastrointestinal Endoscopy2017,9,8: | 4 |
| 4 | 神经重症监护患者的液体治疗:ESICM专家共识及临床实践推荐显示文摘目的发布欧洲重症医学学会(European Society of Intensive Care Medicine, ESICM)关于神经重症监护患者液体治疗的专家共识和临床实践推荐意见。设计在2016年10月召开的ESICM LIVE 2016会议上召集了一个由22名国际专家组成的共识委员会,随后委员会成员通过电话会议和在线讨论制定本专家共识。方法回顾人群、干预、对比和结局(population, intervention,comparison, and outcomes, PICO)问题,根据需要进行更新并得到证据概要。本共识关注3个主要议题:(1)神经重症监护患者的液体复苏和维持;(2)高渗液体在颅内压控制中的应用;(3)蛛网膜下腔出血后迟发性脑缺血的液体管理。经过广泛的文献检索,应用推荐分级的评估、制订与评价(Gradingof Recommendations Assessment, Development and Evaluation, GRADE)系统原则评估证据质量(从高到极低),制定治疗推荐(强或弱),并在适用时发布最佳实践声明。基于文献和专家意见提供的综合证据,应用改良德尔菲方法(使用序贯方法以避免偏倚和误解)产生最终共识声明。结果最终共识包含总共32条声明,其中13条为强推荐,17条为弱推荐,另外2条声明未提供推荐意见。结论我们发布了一份关于神经重症监护患者液体治疗的共识声明和临床实践推荐。 | Mauro Oddo Daniele Poole Raimund Helbok Geert Meyfroidt Nino Stocchetti Pierre Bouzat Maurizio Cecconi Thomas Geeraerts Ignacio-Martin Loeches Herve Quintard Fabio Silvio Taccone Romergryko G. Geocadin Claude Hemphill Carole Ichai David Menon Jean-Francois Payen Anders Perner Martin Smith Jose Suarez Walter Videtta Elisa R. Zanier Giuseppe Citerio 何毅华(译) 常远(译) 王晓蔷(译) 潘速跃(译) | 2019 | 国际脑血管病杂志2019,27,2: | 4 |
| 5 | The Chemistry of Niobium Mineralisation at Bayan Obo,Inner Mongolia,China:Constraints on the Hydrothermal Precipitation and Alteration of Nb-Minerals显示文摘As well as world class Fe and REE resources the Bayan Obo mineral deposits also hosts significant niobium resources(estimated as 2.2 Mt Nb with an average grade of 0.13 wt% Nb).Niobium in this study is primarily hosted in aeschynite-(Ce) and(Nd),but with subsidiary amounts of pyrochlore,fergusonite-(Ce),fersmite and columbite.Here we report on the paragenetic and textural setting of aeschynite,pyrochlore and fergusonite in the main ore bodies and in a carbonatite dyke.Niobium in a carbonatite sample is hosted in a phase tentatively(due to significant Ca,Mn and Ti contents) identified as fergusonite-(Ce).Aeschynite occurs overgrowing foliation in banded ores,in fractures and vugs in aegirine-rich rocks and in calcite veins.The composition in all settings is similar,but some examples in banded ores develop significant zonation in Y,Th and the REE,inferred to relate to buffering of halogen acid species to low levels by dissolution and fluoritisation of calcite,and the preferential precipitation of LREE from solution due to lower mineral solubility products compared to the HREE.Although lower in total concentration the ratios of REE in pyrochlore are similar to those of aeschynite and suggest the same metal source.The crystallisation of pyrochlore probably relates to growth in paragenetic settings where carbonates had already been eliminated and hence the buffering of F-species activities in the hydrothermal fluid was reduced.Both aeschynite and pyrochlore show evidence of alteration.Primary alteration of aeschynite resulted in leaching of A-site cations(Ca,REE,Th) and Nb,addition of Fe,and ultimately replacement by Ba-Ti phases(baotite and bafertisite).Secondary,metamictisation enhanced,possibly supergene alteration of pyrochlore resulted in hydration,leaching of A-site cations leading to the development of lattice vacancies and increases in Si.The presence of hydrothermal Nb resources at Bayan Obo suggests there may be potential for further Nb discoveries in the area,whilst the trends in element mobility during alteration have significant implications for the utility of A-B oxides as components of materials for immobilisation of radionuclides. | Martin SMITH John SPRATT | 2012 | 地质学报2012,86,5: | 3 |
| 6 | The Acute Management of Intracerebral Hemorrhage: A Clinical Review显示文摘 | Justine Elliott Martin Smith | 2010 | Anesthesia & Analgesia2010,,5: | 3 |
| 7 | Monitoring Intracranial Pressure in Traumatic Brain Injury显示文摘 | Martin Smith | 2008 | Anesthesia & Analgesia2008,,1: | 3 |
| 8 | 香港米埔 滨海湿地的保护样板显示文摘香港米埔湿地位于香港特别行政区西北部,毗邻后海湾。面积1500公顷的米埔及内后海湾湿地,具有极其重要的生态价值,于1995年9月被列入'国际重要湿地名录(拉姆萨尔湿地)'。米埔和后海湾湿地因丰富的物种多样性,成为香港滨海生态系统中不可或缺的重要组成部分。后海湾沿岸分布有超过330公顷红树林,面积位列全国第六。 | 谢屹 Rubin Chua(图) Martin Harvey(图) John(图) Jemi Holmes(图) Bena Smith(图) | 2018 | 中国周刊2018,40,1: | 2 |
| 9 | Does the spatial arrangement of urban landscape matter?Examples of urban warming and cooling in Phoenix and Las Vegas显示文摘This study examines the impact of spatial landscape configuration(e.g.,clustered,dispersed)on land-surface temperatures(LST)over Phoenix,Arizona,and Las Vegas,Nevada,USA.We classified detailed land-cover types via object-based image analysis(OBIA)using Geoeye-1 at 3-m resolution(Las Vegas)and QuickBird at 2.4-m resolution(Phoenix).Spatial autocorrelation(local Moran’s I)was then used to test for spatial dependence and to determine how clustered or dispersed points were arranged.Next,we used Advanced Spaceborne Thermal Emission and Reflection Radiometer(ASTER)data acquired over Phoenix(daytime on 10 June and nighttime on 17 October 2011)and Las Vegas(daytime on 6 July and nighttime on 27 August 2005)to examine day-and nighttime LST with regard to the spatial arrangement of anthropogenic and vegetation features.Local Moran’s I values of each land-cover type were spatially correlated to surface temperature.The spatial configuration of grass and trees shows strong negative correlations with LST,implying that clustered vegetation lowers surface temperatures more effectively.In contrast,clustered spatial arrangements of anthropogenic land-cover types,especially impervious surfaces and open soil,elevate LST.These findings suggest that city planners and managers should,where possible,incorporate clustered grass and trees to disperse unmanaged soil and paved surfaces,and fill open unmanaged soil with vegetation.Our findings are in line with national efforts to augment and strengthen green infrastructure,complete streets,parking management,and transit-oriented development practices,and reduce sprawling,unwalkable housing development. | Soe Win Myint Baojuan Zheng Emily Talen Chao Fan Shai Kaplan Ariane Middel Martin Smith Huei-Ping Huang Anthony Brazel | 2015 | Ecosystem Health and Sustainability2015,1,4: | 2 |
| 10 | Subnormothermic Machine Perfusion for Ex Vivo Preservation and Recovery of the Human Liver for Transplantation显示文摘 | B. G. Bruinsma H. Yeh S. ?zer P. N. Martins A. Farmer W. Wu N. Saeidi S. Op den Dries T. A. Berendsen R. N. Smith J. F. Markmann R. J. Porte M. L. Yarmush K. Uygun M.‐L. Izamis | 2014 | American Journal of Transplantation2014,,6: | 2 |
| 11 | microRNA-155 Regulates the Generation of Immunoglobulin Class-Switched Plasma Cells显示文摘 | Elena Vigorito Kerry L. Perks Cei Abreu-Goodger Sam Bunting Zou Xiang Susan Kohlhaas Partha P. Das Eric A. Miska Antony Rodriguez Allan Bradley Kenneth G.C. Smith Cristina Rada Anton J. Enright Kai-Michael Toellner Ian C.M. MacLennan Martin Turner | 2007 | Immunity2007,,6: | 2 |
| 12 | Nonoperative Management of Rectal Cancer With Complete Clinical Response After Neoadjuvant Therapy显示文摘 | James D. Smith Jeannine A. Ruby Karyn A. Goodman Leonard B. Saltz José G. Guillem Martin R. Weiser Larissa K. Temple Garrett M. Nash Philip B. Paty | 2012 | Annals of Surgery2012,,6: | 2 |
| 13 | Soluble TNF-α receptor 1 and IL-6 plasma levels in humans subjected to the sleep deprivation model of spaceflight显示文摘 | William T. Shearer James M. Reuben Janet M. Mullington Nicholas J. Price Bang-Ning Lee E.O’Brian Smith Martin P. Szuba Hans P.A. Van Dongen David F. Dinges | 2001 | The Journal of Allergy and Clinical Immunology2001,,1: | 2 |
| 14 | Abstract functional-differential equations and reaction-diffusion systems 显示文摘 | Martin R H Smith H L | 1990 | Trans Amer Math Soc1990,321,: | 1 |
| 15 | The synthesis of the starch granule 显示文摘 | Smith A M Denyer K Martin C | 1997 | Ann Rev Plant Physiol Plant Mol Biol1997,48,: | 1 |
| 16 | Ahernate-day fasting in nonobese subjects: effects on body weight, body composition, and energy metabolism显示文摘 | Heilbronn LK Smith SR Martin CK | 2005 | Am J Clin Nutr2005,81,: | 1 |
| 17 | What controls the amount and structure of starch in storage organs? 显示文摘 | SMITH A M DENYER K MARTIN C R | 1995 | Plant Physiol1995,107,3: | 1 |
| 18 | Platelet glycoprotein Ⅱb/Ⅲa and size are incresed in acute myocardial infarction显示文摘 | GILES H SMITH R E MARTIN J F | | 0,,: | 1 |
| 19 | The application of climatic data for planning and management of sustainable rainfed and irrigated crop production显示文摘 | Martin Smith | 2000 | Agricultural and Forest Meteorology2000,,1: | 1 |
| 20 | Ultrasonic velocities of the dilatational and shear waves in frozen soils显示文摘 | NAKANO Y MARTIN A J SMITH M | 1972 | W~/ter Resources Research1972,8,4: | 1 |