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140篇 您的检索式:作者名="Emma M"
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1Three-dimensional perfused human in vitro model of nonalcoholic fatty liver disease显示文摘AIM To develop a human in vitro model of non-alcoholic fatty liver disease(NAFLD), utilising primary hepatocytes cultured in a three-dimensional(3D) perfused platform. METHODS Fat and lean culture media were developed to directly investigate the effects of fat loading on primary hepatocytes cultured in a 3D perfused culture system. Oil Red O staining was used to measure fat loading in the hepatocytes and the consumption of free fatty acids(FFA) from culture medium was monitored. Hepatic functions, gene expression profiles and adipokine release were compared for cells cultured in fat and lean conditions. To determine if fat loading in the system could be modulated hepatocytes were treated with known anti-steatotic compounds. RESULTS Hepatocytes cultured in fat medium were found to accumulate three times more fat than lean cells and fat uptake was continuous over a 14-d culture. Fat loading of hepatocytes did not cause any hepatotoxicity and significantly increased albumin production. Numerous adipokines were expressed by fatty cells and genes associated with NAFLD and liver disease were upregulated including: Insulin-like growth factorbinding protein 1, fatty acid-binding protein 3 and CYP7A1. The metabolic activity of hepatocytes cultured in fatty conditions was found to be impaired and the activities of CYP3A4 and CYP2C9 were significantlyreduced, similar to observations made in NAFLD patients. The utility of the model for drug screening was demonstrated by measuring the effects of known antisteatotic compounds. Hepatocytes, cultured under fatty conditions and treated with metformin, had a reduced cellular fat content compared to untreated controls and consumed less FFA from cell culture medium.CONCLUSION The 3D in vitro NAFLD model recapitulates many features of clinical NAFLD and is an ideal tool for analysing the efficacy of anti-steatotic compounds.Tomasz Kostrzewski Terri Cornforth Sophie A Snow Larissa Ouro-Gnao Cliff Rowe Emma M Large David J Hughes 2017World Journal of Gastroenterology2017,23,2:6
2Emerging concepts in liver graft preservation显示文摘The urgent need to expand the donor pool in order to attend to the growing demand for liver transplantation has obliged physicians to consider the use of suboptimal liver grafts and also to redefine the preservation strategies. This review examines the different methods of liver graft preservation, focusing on the latest advances in both static cold storage and machine perfusion(MP). The new strategies for static cold storage are mainly designed to increase the fatty liver graft preservation via the supplementation of commercial organ preservation solutions with additives. In this paper we stress the importance of carrying out effective graft washout after static cold preservation, and present a detailed discussion of the future perspectives for dynamic graft preservation using MP at different temperatures(hypothermia at 4 ℃, normothermia a t 3 7 ℃ and subnormothermia at 20 ℃- 2 5 ℃). Finally, we highlight some emerging applications of regenerative medicine in liver graft preservation. In conclusion, this review discusses the 'state of the art' and future perspectives in static and dynamic liver graft preservation in order to improve graft viability.Mohamed Bejaoui Eirini Pantazi Emma Folch-Puy Pedro M Baptista Agustín García-Gil René Adam Joan Roselló-Catafau 2015World Journal of Gastroenterology2015,21,2:5
3Radial artery access site complications during cardiac procedures,clinical implications and potential solutions: The role of nitric oxide显示文摘Percutaneous coronary intervention for the treatment of coronary artery disease is most commonly performed in the UK through the radial artery,as this is considered to be safer than the femoral approach.However,despite improvements in technology and techniques,complications can occur.The most common complication,arterial spasm,can cause intense pain and,in some cases,procedural failure.The incidence of spasm is dependent on several variables,including operator experience,artery size,and equipment used.An antispasmolytic cocktail can be applied to reduce spasm,which usually includes an exogenous nitric oxide(NO)donor(glyceryl trinitrate).NO is an endogenous local vasodilator and therefore is a potential target for anti-spasm intervention.However,systemic administration can result in unwanted side-effects,such as hypotension.A method that adopts local delivery of NO might be advantageous.This review article describes the mechanisms involved in radial artery spasm,discusses the advantages and disadvantages of current strategies to reduce spasm,and highlight the potential of NO-loaded nanoporous materials for use in this setting.Emma M Coghill Timothy Johnson Russell E Morris Ian L Megson Stephen J Leslie 2020World Journal of Cardiology2020,12,1:4
4Mapping aboveground biomass and its prediction uncertainty using LiDAR and field data, accounting for tree-level allometric and LiDAR model errors显示文摘Background: The increasing availability of remotely sensed data has recently challenged the traditional way of performing forest inventories, and induced an interest in model-based inference. Like traditional design-based inference, model-based inference allows for regional estimates of totals and means, but in addition for wall-to-wall mapping of forest characteristics. Recently Light Detection and Ranging(LiDAR)-based maps of forest attributes have been developed in many countries and been well received by users due to their accurate spatial representation of forest resources. However, the correspondence between such mapping and model-based inference is seldom appreciated. In this study we applied hierarchical model-based inference to produce aboveground biomass maps as well as maps of the corresponding prediction uncertainties with the same spatial resolution. Further, an estimator of mean biomass at regional level, and its uncertainty, was developed to demonstrate how mapping and regional level assessment can be combined within the framework of model-based inference.Results: Through a new version of hierarchical model-based estimation, allowing models to be nonlinear, we accounted for uncertainties in both the individual tree-level biomass models and the models linking plot level biomass predictions with LiDAR metrics. In a 5005 km2 large study area in south-central Sweden the predicted aboveground biomass at the level of 18 m×18 m map units was found to range between 9 and 447 Mg·ha^-1. The corresponding root mean square errors ranged between 10 and 162 Mg·ha^-1. For the entire study region, the mean aboveground biomass was 55 Mg·ha^-1 and the corresponding relative root mean square error 8%. At this level 75%of the mean square error was due to the uncertainty associated with tree-level models.Conclusions: Through the proposed method it is possible to link mapping and estimation within the framework of model-based inference. Uncertainties in both tree-level biomass models and models linking plot level biomass with LiDAR data are accounted for, both for the uncertainty maps and the overall estimates. The development of hierarchical model-based inference to handle nonlinear models was an important prerequisite for the study.Svetlana Saarela AndréWästlund Emma Holmström Alex Appiah Mensah Sören Holm Mats Nilsson Jonas Fridman Göran Ståhl 2020Forest Ecosystems2020,7,3:3
5Long-term outcomes of autoimmune pancreatitis: a multicentre, international analysis显示文摘Phil A Hart Terumi Kamisawa William R Brugge Jae Bock Chung Emma L Culver László Czakó Luca Frulloni Vay Liang W Go Thomas M Gress Myung-Hwan Kim Shigeyuki Kawa Kyu Taek Lee Markus M Lerch Wei-Chih Liao Matthias L?hr Kazuichi Okazaki Ji Kon Ryu Nicolas Sc 2013Gut2013,,12:2
6Age at diagnosis of type 2 diabetes and cardiovascular risk factor profile:A pooled analysis显示文摘BACKGROUND The diagnosis of type 2 diabetes(T2D)in younger adults,an increasingly common public health issue,is associated with a higher risk of cardiovascular complications and mortality,which may be due to a more adverse cardiovascular risk profile in individuals diagnosed at a younger age.AIM To investigate the association between age at diagnosis and the cardiovascular risk profile in adults with T2D.METHODS A pooled dataset was used,comprised of data from five previous studies of adults with T2D,including 1409 participants of whom 196 were diagnosed with T2D under the age of 40 years.Anthropometric and blood biomarker measurements included body weight,body mass index(BMI),waist circumference,body fat percentage,glycaemic control(HbA1c),lipid profile and blood pressure.Univariable and multivariable linear regression models,adjusted for diabetes duration,sex,ethnicity and smoking status,were used to investigate the association between age at diagnosis and each cardiovascular risk factor.RESULTS A higher proportion of participants diagnosed with T2D under the age of 40 were female,current smokers and treated with glucose-lowering medications,compared to participants diagnosed later in life.Participants diagnosed with T2D under the age of 40 also had higher body weight,BMI,waist circumference and body fat percentage,in addition to a more adverse lipid profile,compared to participants diagnosed at an older age.Modelling results showed that each one year reduction in age at diagnosis was significantly associated with 0.67 kg higher body weight[95%confidence interval(CI):0.52-0.82 kg],0.18 kg/m^(2) higher BMI(95%CI:0.10-0.25)and 0.32 cm higher waist circumference(95%CI:0.14-0.49),after adjustment for duration of diabetes and other confounders.Younger age at diagnosis was also significantly associated with higher HbA1c,total cholesterol,low-density lipoprotein cholesterol and triglycerides.CONCLUSION The diagnosis of T2D earlier in life is associated with a worse cardiovascular risk factor profile,compared to those diagnosed later in life.Mary M Barker Francesco Zaccardi Emer M Brady Gaurav S Gulsin Andrew P Hall Joseph Henson Zin ZinHtike Kamlesh Khunti Gerald P McCann Emma L Redman David R Webb Emma G Wilmot Tom Yates Jian Yeo Melanie J Davies Jack A Sargeant 2022World Journal of Diabetes2022,13,3:2
7Current trends of liver cirrhosis in Mexico: Similitudes and differences with other world regions显示文摘AIM To investigate the main current etiologies of cirrhosis in Mexico.METHODS We performed a cross-sectional retrospective multicenter study that included eight hospitals in different areas of Mexico. These hospitals provide health care to people of diverse social classes. The inclusion criteria were a histological, clinical, biochemical, endoscopic, or imaging diagnosis of liver cirrhosis. Data were obtained during a 5-year period(January 2012-December 2017). RESULTS A total of 1210 patients were included. The mean age was 62.5 years(SD = 12.1), and the percentages of men and women were similar(52.0% vs 48.0%). The most frequent causes of liver cirrhosis were hepatitis C virus(HCV)(36.2%), alcoholic liver disease(ALD)(31.2%), and nonalcoholic steatohepatitis(23.2%), and the least frequent were hepatitis B virus(1.1%), autoimmune disorders(7.3%), and other conditions(1.0%).CONCLUSION HCV and ALD are the most frequent causes of cirrhosis in Mexico. However, we note that non-alcoholic fatty liver disease(NAFLD) as an etiology of cirrhosis increased by 100% compared with the rate noted previously. We conclude that NAFLD will soon become one of the most frequent etiologies of liver cirrhosis in Mexico.Nahum Méndez-Sánchez Felipe Zamarripa-Dorsey Arturo Panduro Emma Purón-González Edgar Ulises Coronado-Alejandro Carlos Alejandro Cortez-Hernández Fátima Higuera de la Tijera José Luis Pérez-Hernández Eira Cerda-Reyes Heriberto Rodríguez-Hernández Vania César Cruz-Ramón Oscar Lenin Ramírez-Pérez Nancy Edith Aguilar-Olivos Olga Fabiola Rodríguez-Martínez Samantha Cabrera-Palma Guillermo Cabrera-álvarez 2018World Journal of Clinical Cases2018,6,15:2
8Vedolizumab for ulcerative colitis: Real world outcomes from a multicenter observational cohort of Australia and Oxford显示文摘BACKGROUND Vedolizumab(VDZ),a humanised monoclonal antibody that selectively inhibits alpha4-beta7 integrins is approved for use in adult moderate to severe ulcerative colitis(UC)patients.AIM To assess the efficacy and safety of VDZ in the real-world management of UC in a large multicenter cohort involving two countries and to identify predictors of achieving remission.METHODS A retrospective review of Australian and Oxford,United Kingdom data for UC patients.Clinical response at 3 mo,endoscopic remission at 6 mo and clinical remission at 3,6 and 12 mo were assessed.Cox regression models and Kaplan Meier curves were performed to assess the time to remission,time to failure and the covariates influencing them.Safety outcomes were recorded.RESULTS Three hundred and three UC patients from 14 centres in Australia and United Kingdom,[60%n=182,anti-TNF naïve]were included.The clinical response was 79%at 3 mo with more Australian patients achieving clinical response compared to Oxford(83%vs 70%P=0.01).Clinical remission for all patients was 56%,62%and 60%at 3,6 and 12 mo respectively.Anti-TNF naive patients were more likely to achieve remission than exposed patients at all the time points(3 mo 66%vs 40%P<0.001,6 mo 73%vs 46%P<0.001,12 mo 66%vs 51%P=0.03).More Australian patients achieved endoscopic remission at 6 mo compared to Oxford(69%vs 43%P=0.01).On multi-variate analysis,anti-TNF naïve patients were 1.8(95%CI:1.3-2.3)times more likely to achieve remission than anti-TNF exposed(P<0.001).32 patients(11%)had colectomy by 12 mo.CONCLUSION VDZ was safe and effective with 60%of UC patients achieving clinical remission at 12 mo and prior anti-TNF exposure influenced this outcome.Samba Siva Reddy Pulusu Ashish Srinivasan Krupa Krishnaprasad Daniel Cheng Jakob Begun CharlotteKeung Daniel Van Langenberg Lena Thin Tamara Mogilevski Peter De Cruz Graham Radford-Smith Emma Flanagan Sally Bell Soleiman Kashkooli Miles Sparrow Simon Ghaly Peter Bampton Elise Sawyer Susan Connor Quart-ul-ain Rizvi Jane M Andrews Gillian Mahy Paola Chivers Simon Travis Ian Craig Lawrance 2020World Journal of Gastroenterology2020,26,30:2
9Black is the new green显示文摘Emma M 2006Nature2006,442,:1
10Localized Bicaudal-C RNA encodes a protein containing a KH domain, the RNA binding motif of FMR1 显示文摘Miehele M Emma ES Paul FL 1995EMBO1995,14,9:1
11Collapsing glomerulopathy associ ated with inherited mitochondriai injury显示文摘Barisoni L Diomedi-Camassei F Santorelli F M Caridi G Thomas D B Emma F 2008Kidney Int2008,74,:1
12Advanced glycation end-products induce vascular dysfunction via resistance to nitric oxide and suppression of endothelial nitric oxide synthase显示文摘Aino Soro-Paavonen Wei-Zeng Zhang Kylie Venardos Melinda T Coughlan Emma Harris David CK Tong Daniella Brasacchio Karri Paavonen Jaye Chin-Dusting Mark E Cooper David Kaye Merlin C Thomas Josephine M Forbes 2010Journal of Hypertension2010,,4:1
13Sunitinib 显示文摘DEEKS E D EMMA D KEATING G M 2006Drugs2006,66,17:1
14Black is the new green显示文摘Emma M 2006Nature2006,442,:1
15Clinicians' Attitudes to Clinical Practice Guidelines: a systematic review显示文摘 Emma W K Jean R S 2002MJA2002,177,9:1
16The negativeeffects of bile acids and tumor necrosis factor-αon the tran-scription of cholesterol 7α-hydroxylase gene(CYP7A1)con-verge to hepatic nuclear factor-4显示文摘Emma De F Nico M Ana Cecilia A 2001J Biol Chem2001,276,30:1
17The influence of fuel structure on combustion as demonstrated by the isomers of heptane: A rapid compression machine study显示文摘Silke Emma J Curran Henry J Simmie John M 2005Proceedings of the Combustion Institute2005,30,:1
18Challenges and opportunities in mapping land use intensity globally显示文摘Tobias Kuemmerle Karlheinz Erb Patrick Meyfroidt Daniel Müller Peter H Verburg Stephan Estel Helmut Haberl Patrick Hostert Martin R. Jepsen Thomas Kastner Christian Levers Marcus Lindner Christoph Plutzar Pieter Johannes Verkerk Emma H van der Zanden Anet 2013Current Opinion in Environmental Sustainability2013,,:1
19Immunotherapy of insulin-dependent diabetes mellitus显示文摘EMMA L M JEFFREY A B 2002Curr Opin Immunol2002,14,:1
20Beyond the 'climate versus grazing' impasse: using remote sensing to investigate the effects of grazing system choice on vegetation cover in the eastern Karoo显示文摘Emma R M Archer 2004Journal of Arid Environments2004,57,3:1
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