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Opportunistic Infections in Renal Transplantation <br/>—A Case Series

Open Journal of Pathology 2017年第1期7卷 13-19页

作者： Rita Sampaio José Palla Garcia leonídio dias La Salete Martins José Ramón Vizcaíno Department of Pathology Hospital de Santo António Centro Hospitalar do Porto Porto Portugal Department of Nephrology Hospital de Santo António Centro Hospitalar do Porto Porto Portugal

Background: Porto’s Hospital Centre is one of the most active Portuguese hospitals in renal transplantation (performed since 1983). Although increasingly rare, opportunistic infections in transplanted patients are associated with high mortality rate in kidney transplantation and remain a major diagnostic challenge. Methods: We investigated 2041 cases of hospital admissions (from 2004 to 2012), any time after kidney transplantation. We described the infection location, the diagnostic techniques used and the mortality after the infection. Results: We found 82 cases of opportunistic infection caused by Herpes virus (Zoster and simplex), Cytomegalovirus, Polyomavirus, Aspergilus, Alternaria, Mucorales, Candida, Mycobacterium tuberculosis, Cryptococcus and Pneumocystis. Conclusions: In this article we highlight the important role of histology/cytology in the diagnostic process of these infections. In many cases prompt diagnosis and treatment are necessary to avoid life-threatening complications and may greatly improve prognosis.

关键词： Transplant Pathology Kidney Opportunistic Infections

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Impact of preformed donor-specific antibodies against HLA class Ⅰ on kidney graft outcomes:Comparative analysis of exclusively anti-Cw vs anti-A and/or-B antibodies

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World Journal of Transplantation 2016年第4期6卷 689-696页

作者： Sofia Santos Jorge Malheiro Sandra Tafulo leonídio dias Rute Carmo Susana Sampaio Marta Costa Andreia Campos Sofia Pedroso Manuela Almeida La Salete Martins Castro Henriques António Cabrita Department of Nephrology and Kidney Transplantation Centro Hospitalar do Porto Centro do Sangue e Transplanta??o do Porto Department of Nephrology Hospital Sao? Joao?

AIM To analyze the clinical impact of preformed antiH LA-Cw vs antiH LA-A and/or-B donor-specific antibodies(DSA) in kidney *** Retrospective study, comparing 12 patients transplanted with DSA exclusively antiH LA-Cw with 23 patients with preformed DSA antiH LA-A and/or *** One year after transplantation there were no differencesin terms of acute rejection between the two groups(3 and 6 cases, respectively in the DSA-Cw and the DSA-A-B groups; P = 1). At one year, eG FR was not significantly different between groups(median 59 mL /min in DSA-Cw group, compared to median 51 mL /min in DSA-A-B group, P = 0.192). Moreover, kidney graft survival was similar between groups at 5-years(100% in DSA-Cw group vs 91% in DSA-A-B group, P = 0.528). The sole independent predictor of antibody mediated rejection(AMR) incidence was DSA strength(HR = 1.07 per 1000 increase in MFI, P = 0.034). AMR was associated with shortened graft survival at 5-years, with 75% and 100% grafts surviving in patients with or without AMR, respectively(Log-rank P = 0.005).CONCLUSION Our data indicate that DSA-Cw are associated with an identical risk of AMR and impact on graft function in comparison with "classical" class I DSA.

关键词： Donor-specific antibodies Antibody-mediated rejection Anti human leukocyte antigen classⅠ AntiHLACw antibodies Graft survival Solid-phase immunoassays

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Evaluating the role of fire over a decade in a tropical mountainous forestgrassland mosaic

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Journal of Mountain Science 2024年第12期21卷 4191-4207页

作者： Juliana KUCHENBECKER Yumi OKI Flávio CAMAROTA Frederico S.NEVES Diego R.MACEDO Bárbara SILVA FERREIRA Ramiro AGUILAR Lorena ASHWORTH Ezequiel FABIANO Bárbara dias ARAÚJO Amanda PONCE DE leon Bruna RIBEIRO SILVA Thamyris BRAGIONI Fernando FIGUEIREDO GOULART JoséEugênio CÔRTES FIGUEIRA Geraldo WILSON FERNANDES Departamento de Genética Ecologia e EvoluçãoInstituto de Ciências BiológicasUniversidade Federal de Minas Gerais-UFMGBelo HorizonteMG 31270-901Brazil Programa de Pós-graduação Biodiversidade e Uso de Recursos Naturais Universidade Estadual de Montes Claros-UNIMONTESMontes ClarosMG 39401-089Brazil Departamento de Geografia Instituto de GeociênciasUniversidade Federal de Minas Gerais-UFMGBelo HorizonteMG 31270-901Brazil Instituto Multidisciplinario de Biologia Vegetal CONICET-Universidad Nacional de CórdobaX5000JJCCórdobaArgentina Department of Wildlife Management and Ecotourism University of NamibiaKatima MuliloKatima Mulilo 20001Namíbia Departamento de Botânica Instituto de Ciências BiológicasUniversidade Federal de Minas Gerais-UFMGBelo HorizonteMG 31270-901Brazil Knowledge Center for Biodiversity Belo HorizonteMG 31270-901Brazil

Forest-grassland mosaics comprise a major component of tropical landscapes,hosting invaluable biodiversity and providing essential ecosystem services to hundreds of millions of people *** open biomes often benefit from disturbance,forests can particularly be susceptible to structural changes resulting from such *** we evaluate the influence of fire on the structure and landscape properties within natural forest islands immersed in a matrix of megadiverse montane *** conducted this study in 15 forest islands located in southeastern Brazil,assessing its fire frequency,intensity,and post-fire time over an eleven-year period from January 2012 to December *** results show that fire frequency is linked to soil characteristics and the percentage of herbaceous cover within the forest *** also found that the post-fire time is related to the percentage cover of the forest islands’associated herbs and ***,neither fire frequency,intensity,nor post-fire time was connected to significant changes in plant species richness,abundance,or in the upper vegetation strata(tree species richness and abundance,and canopy cover)in the interior of the forest ***,these fire-related variables did not result in temporal changes in the forest island’s canopy variation or landscape *** results underscore a low fire frequency and intensity within our study area,potentially explaining the limited fire-associated impact,and primarily on the lower vegetation *** acknowledging the relative stability of these forest islands under current fire regimes,we suggest further studies that can experimentally manipulate not only fire but also other anthropic disturbances for understanding the temporal dynamics of the forest islands and,consequently,their *** perspective is indispensable for comprehensively understanding the ecological consequences of anthropogenic disturbances in natural forest islands.

关键词： Campo Rupestre Fire Ecology Forest islands Mountain ecosystems Remote Sensing Serra do Cipó

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Performance and calibration of quark/gluon-jet taggers using 140 fb^(-1) of pp collisions at √s=13 TeV with the ATLAS detector

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Chinese Physics C 2024年第2期48卷 1-25页

作者： G. Aad B. Abbott K. Abeling N.J. Abicht S.H. Abidi A. Aboulhorma H. Abramowicz H. Abreu Y. Abulaiti B.S. Acharya C. Adam Bourdarios L. Adamczyk S.V. Addepalli M.J. Addison J. Adelman A. Adiguzel T. Adye A.A. Affolder Y. Afik M.N. Agaras J. Agarwala A. Aggarwal C. Agheorghiesei A. Ahmad F. Ahmadov W.S. Ahmed S. Ahuja X. Ai G. Aielli A. Aikot M. Ait Tamlihat B. Aitbenchikh I. Aizenberg M. Akbiyik T.P.A. Åkesson A.V. Akimov D. Akiyama N.N. Akolkar K. Al Khoury G.L. Alberghi J. Albert P. Albicocco G.L. Albouy S. Alderweireldt M. Aleksa I.N. Aleksandrov C. Alexa T. Alexopoulos F. Alfonsi M. Algren M. Alhroob B. Ali H.M.J. Ali S. Ali S.W. Alibocus M. Aliev G. Alimonti W. Alkakhi C. Allaire B.M.M. Allbrooke J.F. Allen C.A. Allendes Flores P.P. Allport A. Aloisio F. Alonso C. Alpigiani M. Alvarez Estevez A. Alvarez Fernandez M. Alves Cardoso M.G. Alviggi M. Aly Y. Amaral Coutinho A. Ambler C. Amelung M. Amerl C.G. Ames D. Amidei S.P. Amor Dos Santos K.R. Amos V. Ananiev C. Anastopoulos T. Andeen J.K. Anders S.Y. Andrean A. Andreazza S. Angelidakis A. Angerami A.V. Anisenkov A. Annovi C. Antel M.T. Anthony E. Antipov M. Antonelli F. Anulli M. Aoki T. Aoki J.A. Aparisi Pozo M.A. Aparo L. Aperio Bella C. Appelt A. Apyan N. Aranzabal S.J. Arbiol Val C. Arcangeletti A.T.H. Arce E. Arena J-F. Arguin S. Argyropoulos J.-H. Arling O. Arnaez H. Arnold G. Artoni H. Asada K. Asai S. Asai N.A. Asbah J. Assahsah K. Assamagan R. Astalos S. Atashi R.J. Atkin M. Atkinson H. Atmani P.A. Atmasiddha K. Augsten S. Auricchio A.D. Auriol V.A. Austrup G. Avolio K. Axiotis G. Azuelos D. Babal H. Bachacou K. Bachas A. Bachiu F. Backman A. Badea P. Bagnaia M. Bahmani A.J. Bailey V.R. Bailey J.T. Baines L. Baines O.K. Baker E. Bakos D. Bakshi Gupta V. Balakrishnan R. Balasubramanian E.M. Baldin P. Balek E. Ballabene F. Balli L.M. Baltes W.K. Balunas J. Balz E. Banas M. Bandieramonte A. Bandyopadhyay S. Bansal L. Barak M. Barakat E.L. Barberio D. Barberis M. Barbero M.Z. Barel K.N. Barends T. Barillari M-S. Barisits T. Barklow P. Baron D.A. Baron Mo The ATLAS Collaboration

The identification of jets originating from quarks and gluons,often referred to as quark/gluon tagging,plays an important role in various analyses performed at the Large Hadron Collider,as Standard Model measurements and searches for new particles decaying to quarks often rely on suppressing a large gluon-induced *** paper describes the measurement of the efficiencies of quark/gluon taggers developed within the ATLAS Collaboration,using √s=13 TeV proton–proton collision data with an integrated luminosity of 140 fb^(-1) collected by the ATLAS *** taggers with high performances in rejecting jets from gluon over jets from quarks are studied:one tagger is based on requirements on the number of inner-detector tracks associated with the jet,and the other combines several jet substructure observables using a boosted decision tree.A method is established to determine the quark/gluon fraction in data,by using quark/gluon-enriched subsamples defined by the jet *** in tagging efficiency between data and simulation are provided for jets with transverse momentum between 500 GeV and 2 TeV and for multiple tagger working points.

关键词： ATLAS JET QUARK GLUON TAGGING

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