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Diagnostic strategy for occult hepatitis B virus infection

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World Journal of Gastroenterology 2011年第12期17卷 1553-1557页

作者： Sara Ocana maria luisa casas Ingrid Buhigas Jose Luis Lledo Service of Clinical Laboratory Hospital Universitario Fundación AlcorcónAv Budapest-128922 AlcorcónMadrid 28036Spain Service of Biochemistry Hospital Universitario Fundación Alcorcón.Av Budapest-1.28922 AlcorcónMadrid 28036Spain Service of Gastroenterology Hospital Universitario Fundación Alcorcón.Av Budapest-1.28922 AlcorcónMadrid 28036Spain Navarro Service of Gastroenterology Hospital Universitario Fundación AlcorcónAv Budapest-1.28922 AlcorcónMadrid 28036Spain

In 2008,the European Association for the study of the liver(EASL) defined occult hepatitis B virus infection (OBI) as the"presence of hepatitis B virus(HBV) DNA in the liver(with detectable or undetectable HBV DNA in the serum) of individuals testing hepatitis B surface antigen(HBsAg) negative by currently available assays".Several aspects of occult HBV infection are still poorly understood,including the definition itself and a standardized approach for laboratory-based detection,which is the purpose of this *** clinical significance of OBI has not yet been established;however,in terms of public health,the clinical importance arises from the risk of HBV ***,it is important to detect high-risk groups for occult HBV infection to prevent *** main issue is,perhaps,to identify the target population for screening *** is very low or undetectable in occult HBV infection,even when the most sensitive methods are used,and the detection of the viral DNA reservoir in hepatocytes would provide the best evaluation of occult HBV prevalence in a defined set of ***,this diagnostic approach is obviously unsuitable:blood detection of occult hepatitis B requires assays of the highest sensitivity and specificity with a lower limit of detection<10 IU/mL for HBV DNA and<0.1 ng/mL for HBsAg.

关键词： Occult hepatitis B virus infection Hepatitis B surface antigen Hepatitis B virus DNA Anti-HBc

Differences in seed dormancy and germination in amphicarpic legumes:manifold bet-hedging in space and time

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Journal of Plant Ecology 2021年第4期14卷 662-672页

作者： Ricardo Sanchez-Martin Jose maria Gomez Pierre-Olivier Cheptou Rafael Rubio de casas Departamento Ecologia Vegetal Centro de Investigaciones sobre Desertificacion(CIDE-CSIC-UV-GV)Carretera de Moncada-Naquera Km 4546113 MoncadaValenciaSpain Departamento de Ecologia Funcional y Evolutiva Estacion Experimental de Zonas AridasEEZA-CSICCtra.de Sacramento s/nLa Cañada de San Urbano04120 AlmeriaSpain Centre d’Ecologie Fonctionnelle et Evolutive(CEFE) CEFE UMR 5175CNRSUniversite de MontpellierUniversite Paul-Valery7 MontpellierEPHE1919 route de Mende34293 Montpellier Cedex 05France Departamento de Ecologia Universidad de GranadaAvda.de Fuentenueva s/n18071 GranadaSpain

Aims Dispersal through space or time via dormancy is one of the primary processes whereby organisms can influence the environment they *** plants,strong evolutionary correlations are expected between the two kinds of dispersal because both are performed by the seeds and play comparable adaptive *** this paper,we investigated these evolutionary correlations using amphicarpic plants,which simultaneously produce aerial seeds with high spatial dispersal propensity and subterranean seeds that do not *** We investigated the variation in dormancy and germination in aerial and subterranean seeds of two amphicarpic legumes(Vicia amphicarpa *** Lathyrus amphicarpos L.)and two closely related homocarpic taxa(Vicia sativa *** Lathyrus cicera L.)by estimating germination percentages following different combinations of dormancy breaking treatments(*** after-ripening,cold stratification and physical scarification).Important Findings Our results showed complex interactions between spatial and temporal *** after dispersal,aerial seeds were more dormant than their subterranean counterparts,but this trend reversed with after-ripening,as seeds developed physical *** of homocarpic plants germinated at higher percentages than those of their amphicarpic congeners and lost dormancy homogeneously with ***,amphicarpic seeds exhibited varied dormancy strategies modulated by both physiological and physical *** are expected to increase variation in emergence timing,providing multiple levels of diversifying *** strategy might be adaptive under highly unpredictable conditions by enabling plants to rely on historically favorable sites in good seasons without preventing spatial and temporal migration.

关键词： amphicarpy dormancy/colonization trade-off amphicarpic legumes environmental heterogeneity seed dormancy and germination Mediterranean environments

Evaluation of ^(177)Lu-Dotatate treatment in patients with metastatic neuroendocrine tumors and prognostic factors

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World Journal of Gastroenterology 2020年第13期26卷 1513-1524页

作者： Estephany Abou Jokh casas Virginia Pubul Núnez Urbano Anido-Herranz María del Carmen Mallón Araujo maria del Carmen Pombo Pasín Miguel Garrido Pumar José Manuel Cabezas Agrícola José Manuel Cameselle-Teijeiro Ashraf Hilal álvaro Ruibal Morell Department of Nuclear Medicine Santiago de Compostela′s University HospitalSantiago de Compostela 15706A CorunaSpain Department of Oncology Santiago de Compostela′s University HospitalSantiago de Compostela 15706A CorunaSpain Department of Endocrinology Santiago de Compostela′s University HospitalSantiago de Compostela15706A CorunaSpain Department of Pathology Santiago de Compostela′s University HospitalSantiago de Compostela 15706A CorunaSpain Department of Statistics University of Santiago de CompostelaSantiago de Compostela 15706A CorunaSpain

BACKGROUND^177Lu peptide receptor radionuclide therapy(PRRT)is a recently approved therapy in Spain that has been demonstrated to be a well-tolerated therapy for positive somatostatin receptor advanced gastroenteropancreatic neuroendocrine *** To determine the impact of PRRT on quality of life,radiologic and metabolic response,overall survival,prognostic factors and *** Thirty-six patients treated with^177Lu-PRRT from 2016 to 2019 were *** most frequent location of the primary tumor was the gastrointestinal tract(52.8%),pancreas(27.8%),and nongastropancreatic neuroendocrine tumor(11.1%).The liver was the most common site of metastasis(91.7%),followed by distant nodes(50.0%),bone(27.8%),peritoneum(25.0%)and lung(11.1%).Toxicity was evaluated after the administration of each *** efficacywas evaluated by two parameters:stable disease and disease progression in response evaluation criteria in solid tumors 1.1 criterion and prognostic factors were *** From 36 patients,55.6%were men,with a median age of 61.1±11.8 *** previous treatments,55.6%of patients underwent surgery of the primary tumor,100%of patients were treated with long-acting somatostatin analogues,66.7%of patients were treated with everolimus,27.8%of patients were treated with tyrosine kinase inhibitor,and 27.8%of patients were treated with *** patient received radioembolization,three patients received chemoembolization,six patients received *** toxicity was registered in 14 patients(G1-G2:55.5%and G3:3.1%).Other events presented were intestinal suboclusion in 4 cases,cholestasis in 2 cases and carcinoid crisis in 1 *** median follow-up time was 3 ***,24 patients completed *** are alive with stable disease,two have disease progression,eight have died,and nine are still receiving *** median overall survival was 12.5 mo(95%confidence interval range:9.8–15.2),being inversely p

关键词： Peptide receptor radionuclide therapy Gastropancreatic neuroendocrine tumors Radiological response Metabolic response

Myocardial infarction with non-obstructive coronary arteries: A comprehensive review and future research directions

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World Journal of Cardiology 2019年第12期11卷 305-315页

作者： Rafael Vidal-Perez Charigan Abou Jokh casas Rosa maria Agra-Bermejo Belén Alvarez-Alvarez Julia Grapsa Ricardo Fontes-Carvalho Pedro Rigueiro Veloso Jose maria Garcia Acuña Jose Ramon Gonzalez-Juanatey Cardiology Department Hospital Clinico Universitario de SantiagoSantiago de Compostela 15706Spain Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares(CIBERCV) Santiago de Compostela 15706Spain Cardiology Department St Bartholomew HospitalBarts Health TrustLondon EC1A 7BEUnited Kingdom Cardiology Department Centro Hospitalar GaiaVila Nova Gaia 4434-502Portugal Faculty of Medicine University of Porto Porto 4200-319Portugal

Acute coronary syndromes constitute a variety of myocardial injury presentations that include a subset of patients presenting with myocardial infarction with non-obstructive coronary arteries(MINOCA).This acute coronary syndrome differs from type 1 myocardial infarction(MI)regarding patient characteristics,presentation,physiopathology,management,treatment,and ***-thirds of MINOCA subjects present ST-segment elevation;MINOCA patients are younger,are more often female and tend to have fewer cardiovascular risk ***,MINOCA is a working diagnosis,and defining the aetiologic mechanism is relevant because it affects patient care and *** the absence of relevant coronary artery disease,myocardial ischaemia might be triggered by an acute event in epicardial coronary arteries,coronary microcirculation,or *** causes of MINOCA include coronary plaque disruption,coronary dissection,and coronary *** MINOCA mechanisms involve microvascular coronary spasm,takotsubo syndrome(TTS),myocarditis,and coronary *** angiography with non-significant coronary stenosis and left ventriculography are first-line tests in the differential study of MINOCA *** diagnostic arsenal includes invasive and non-invasive *** history and echocardiography can help indicate vasospasm or thrombosis,if one finite coronary territory is affected,or specify TTS if apical ballooning is *** ultrasound,optical coherence tomography,and provocative testing are *** magnetic resonance is a cornerstone in myocarditis *** is not a benign diagnosis,and its polymorphic forms differ in *** care varies across centres,and future multi-centre clinical trials with standardized criteria may have a positive impact on defining optimal cardiovascular care for MINOCA patients.

关键词： Myocardial infarction Non-obstructive coronary Myocardial infarction with non-obstructive coronary arteries Management Prognosis

Selective butyric acid production from CO_(2)and its upgrade to butanol in microbial electrosynthesis cells

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Environmental Science and Ecotechnology 2024年第1期17卷 119-127页

作者： Meritxell Romans-casas Laura Feliu-Paradeda Michele Tedesco Hubertus V.M.Hamelers Lluis Bañeras M.Dolors Balaguer SebastiàPuig Paolo Dessì Institute of the Environment University of Girona.Campus MontiliviCarrer Maria Aurélia Capmany 69E-17003GironaSpain Molecular Microbial Ecology Group Institute of Aquatic EcologyUniversity of GironaMaria Aurelia Capmany 4017003GironaSpain Wetsus European Centre of Excellence for Sustainable Water TechnologyOostergoweg 98911MALeeuwardenthe Netherlands

Microbial electrosynthesis(MES)is a promising carbon utilization technology,but the low-value products(i.e.,acetate or methane)and the high electric power demand hinder its industrial *** this study,electrically efficient MES cells with a low ohmic resistance of 15.7 mU m^(2)were operated galvanostatically in fed-batch mode,alternating periods of high CO_(2)and H2 *** promoted acetic acid and ethanol production,ultimately triggering selective(78%on a carbon basis)butyric acid production via chain *** average production rate of 14.5 g m^(-2)d^(-1)was obtained at an applied current of 1.0 or 1.5 mA cm^(-2),being Megasphaera *** key chain elongating *** a second cell with the catholyte containing the enriched community resulted in butyric acid production at the same rate as the previous cell,but the lag phase was reduced by 82%.Furthermore,interrupting the CO_(2)feeding and setting a constant pH2 of 1.7e1.8 atm in the cathode compartment triggered solventogenic butanol production at a pH below *** efficient cell design resulted in average cell voltages of 2.6e2.8 V and a remarkably low electric energy requirement of 34.6 kWhel kg1 of butyric acid produced,despite coulombic efficiencies being restricted to 45%due to the cross-over of O_(2)and H2 through the *** conclusion,this study revealed the optimal operating conditions to achieve energy-efficient butyric acid production from CO_(2)and suggested a strategy to further upgrade it to valuable butanol.

关键词： Biocathode Bioelectrochemical system Chain elongation Hydrogen partial pressure Megasphaera

Candidate genes underlying QTL for flowering time and their interactions in a wide spring barley(Hordeum vulgare L.) cross

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The Crop Journal 2021年第4期9卷 862-872页

作者： Ana M.casas Carlota R.Gazulla Arantxa Monteagudo Carlos P.Cantalapiedra marian Moralejo MPilar Gracia Francisco J.Ciudad William T.B.Thomas Jose L.Molina-Cano Scott Boden Bruno Contreras-Moreira Ernesto Igartua Department of Genetics and Plant Production Aula Dei Experimental Station(EEAD-CSIC)Avda Montanana 1005E-50059 ZaragozaSpain University of Lleida-AGROTECNIO Center Avda.Rovira Roure 19125198 LleidaSpain Instituto de Tecnologia Agraria Junta de Castilla y LeonITACyLP.O.Box 17247071 ValladolidSpain The James Hutton Institute InvergowrieDundee DD25DAUK Institut de Recerca i Tecnologia Agroalimentaries(UdL-IRTA) Avda Rovira Roure 19125198 LleidaSpain John Innes Centre Norwich Research ParkNorwich NR47UHUK Fundacion ARAID calle Maria de Luna 1150018 ZaragozaSpain Present address:Centro de Biotecnologia y Genomica de Plantas Universidad Politecnica de Madrid(UPM)and Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria(INIA)Madrid 28223Spain Present address:School of Agriculture Food and WineWaite Research InstituteUniversity of AdelaideGlen OsmondSA 5064Australia Present address:The European Bioinformatics Institute(EMBL-EBI) Wellcome Trust Genome CampusHinxtonUK

Response to vernalization and photoperiod are the main determinants controlling the time to flowering in temperate cereals. While the individual genes that determine a plant's response to these environmental signals are well characterized, the combinatorial effect on flowering time of allelic variants for multiple genes remains unresolved. This study investigated the genetic control of flowering-time in a biparental population of spring barley, derived from a wide cross between a late-flowering European and an early-flowering North-American cultivar. While the major flowering time genes are not segregating in the Beka ×Logan cross, large variation in flowering was observed. We identified five QTL, with both parents found to contribute early alleles. The catalog of QTL discovered aligns with several candidate genes affecting flowering time in barley. The combination of particular alleles at HvCEN, HvELF3 and HvFT1 in Logan are responsible for the earliness of this cultivar. Interestingly, earliness for flowering could be further enhanced, with Beka found to contribute three early alleles, including a QTL colocating with a HvFD-like gene, suggesting that there are diverse aspects of the flowering-time pathway that have been manipulated in these two cultivars. Epistatic interactions between flowering-time QTL or candidate genes were observed in field data and confirmed under controlled conditions. The results of this study link photoperiod-dependent flowering-time genes with earliness per se genes into a single model, thus providing a unique framework that can be used by geneticists and breeders to optimize flowering time in barley.

关键词： Barley Flowering HvELF3 HvCEN HvFT1

Pathological response to neoadjuvant therapy with chemotherapy vs chemoradiotherapy in stage III NSCLC-contribution of IASLC recommendations

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World Journal of Clinical Oncology 2021年第11期12卷 1047-1063页

作者： Diego Muñoz-Guglielmetti David Sanchez-Lorente Roxana Reyes Daniel Martinez Carmen Lucena Marc Boada Pilar Paredes Marta Parera-Roig Ivan Vollmer Joel Mases Roberto Martin-Deleon Sergi Castillo mariana Benegas Silvia Muñoz maria Mayoral Carla Cases Meritxell Mollà Francesc casas Radiation Oncology Department Hospital Clínic de BarcelonaBarcelona 08036CataluñaSpain Thoracic Surgery Department Thoracic UnitHospital Clínic de BarcelonaBarcelona 08036CataluñaSpain Medical Oncology Department Thoracic UnitHospital Clínic de BarcelonaBarcelona 08036CataluñaSpain Pathology Department Thoracic UnitHospital Clínic de BarcelonaBarcelona 08036CataluñaSpain Pneumology Department Thoracic UnitHospital Clínic de BarcelonaBarcelona 08036CataluñaSpain Nuclear Medicine Department Faculty of Medicine of University of BarcelonaInstitut d'Investigacions Biomèdiques August Pi i Sunyer(IDIBAPS)Barcelona 08036CataluñaSpain Medical Oncology Department Hospital Comarcal de VicVic 08500CataluñaSpain Radiology Department Thoracic UnitHospital Clínic de BarcelonaBarcelona 08036CataluñaSpain Pneumology Department Hospital Universitario Reina SofiaCórdoba 14004AndalucíaSpain Medical Oncology Department Hospital de MolletMollet 08100CataluñaSpain Medical Oncology Department Hospital General de GranollersGranollers 08402CataluñaSpain Nuclear Medicine Department Thoracic UnitHospital Clínic de BarcelonaBarcelona 08036CataluñaSpain Radiation Oncology Department Thoracic UnitHospital Clínic de BarcelonaBarcelona 08036CataluñaSpain

BACKGROUND Neoadjuvant treatment(NT)with chemotherapy(Ch)is a standard option for resectable stage III(N2)*** studies have suggested benefits with the addition of radiotherapy(RT)to NT *** International Association for the Study of Lung Cancer(IASLC)published recommendations for the pathological response(PHR)of NSCLC resection specimens after *** To contribute to the IASLC recommendations showing our results of PHR to NT Ch vs NT chemoradiotherapy(ChRT).METHODS We analyzed 67 consecutive patients with resectable stage III NSCLC with positive mediastinal nodes treated with surgery after NT Ch or NT ChRT between 2013 and *** NT,all patients were evaluated for radiological response(RR)according to Response Evaluation Criteria in Solid Tumours criteria and evaluated for surgery by a specialized group of thoracic *** histological samples were examined by the same two *** was evaluated by the percentage of viable cells in the tumor and the resected lymph *** Forty patients underwent NT ChRT and 27 NT ***-six(83.6%)patients underwent surgery(35 ChRT and 21 Ch).The median time from ChRT to surgery was 6 wk(3-19)and 8 wk(3-21)for Ch *** observed significant differences in RR,with disease progression in 2.5%and 14.8%of patients with ChRT and Ch,respectively,and partial response in 62.5%ChRT vs 29.6%Ch(P=0.025).In PHR we observed≤10%viable cells in the tumor in 19(54.4%)and 2 cases(9.5%),and in the resected lymph nodes(RLN)30(85.7%)and 7(33.3%)in ChRT and Ch,respectively(P=0.001).Downstaging was greater in the ChRT compared to the Ch group(80%vs 33.3%;P=0.002).In the univariate analysis,NT ChRT had a significant impact on partial RR[odds ratio(OR)12.5;95%confidence interval(CI):1.21-128.61;P=0.034],a decreased risk of persistence of cancer cells in the tumor and RLN and an 87.5%increased probability for achieving downstaging(OR 8;95%CI:2.34-27.32;P=0.001).CONCLUSION We found significant benefits in RR and PHR

关键词： Non-small cell lung cancer Chemotherapy Chemoradiotherapy Neoadjuvant treatment Resectable stage III Pathological response