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Autoimmune hepatitis in human immunodeficiency virus infection: Case report and literature review

World Journal of Clinical Infectious Diseases 2017年第4期7卷 50-57页

作者： Ivan Nore?a Jairo A Morantes-Caballero Andrés Garcés Brian José Gómez Gabriel Rodríguez Carlos Saavedra william otero Infectious Diseases Section Department of Internal Medicine Universidad Nacional de Colombia and Hospital Universitario Nacional de Colombia Department of Internal Medicine Universidad Nacional de Colombia and Hospital Universitario Nacional de Colombia Gastroenterology Section Department of Internal Medicine Universidad Nacional de Colombia and Hospital Universitario Nacional de Colombia

The infection due to human immunodeficiency virus(HIV) is characterized by the progressive reduction of CD4+ T lymphocytes and the compromise of other cell lines of the immune system, resulting in immunosuppression. In this context, autoimmune diseases could be considered contradictory, however, cases of autoimmune diseases during this infection have been described, including autoimmune hepatitis(AIH), which is uncommon and has few case reports within medical literature, none of them from Latin America. In this case report where a patient with an HIV infection on combined antiretroviral treatment developed acute elevation of transaminases, hyperbilirubinemia, and deterioration in hepatic synthetic function. Although initially an antiretroviral drug-induced liver injury was suspected, during the study a diagnosis of autoimmune hepatitis was proven, which required treatment with corticosteroid and azathioprine, obtaining a satisfactory response and managing to continue the antiretroviral therapy. Autoimmune diseases in HIV infection must be taken into account. In the case of hepatitis in patients with HIV on antiretroviral treatment, the differentiation between viral hepatitis caused by autoimmune diseases or medications is essential to establish an adequate treatment, and avoid the suspension of the antiretroviral therapy.

关键词： Autoimmunity Autoimmune hepatitis Human immunodeficiency virus Anti-human immunodeficiency virus agents Drug-induced liver injury

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Insights into adsorbent tortuosity across aqueous adsorption systems

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Particuology 2024年第5期88卷 71-88页

作者： Ackmez Mudhoo Marta otero Khim Hoong Chu Department of Chemical and Environmental Engineering Faculty of EngineeringUniversity of MauritiusRéduit 80837Mauritius Department of Applied Chemistry and Physics Universidad de LeónCampus de Vegazana 24071 LeónSpain Department of Chemical Engineering Faculty of EngineeringUniversity of MalayaKuala Lumpur 50603Malaysia

Pore network,pore connectivity,and the resulting effective adsorbate pore diffusivity within an adsorbent are critical physical considerations in mass transport modeling of aqueous adsorption.Tied to these three adsorbent features are the adsorbent tortuosity and tortuosity factor concepts.These concepts encompass the collective hindrance to intra-adsorbent adsorbate transport arising because of a disorderly adsorbent porous topology.It is crucial for materials scientists,chemists,chemical engineers,and water treatment specialists to understand the complex and variable connections among adsorbate chemistry,adsorbent chemistry,adsorbent porosity,pore shape,size,and tortuosity,pore wall effect,adsorbate-adsorbent interactions,and adsorbate-adsorbate interactions in competitively contaminated aqueous environments.Adsorbent tortuosity has been sporadically studied in aqueous adsorption models.Despite the small population of these studies,insightful observations and inferences have been reported.However,as it appears,no review has been published to compile,compare,and contrast these aspects.Hence,this review concisely brings up those observations and interpretations around adsorbent tortuosity for aqueous adsorption systems.The notion of an adsorbent's tortuosity being single-valued is argued to be imprecise.Finally,perspectives are aired on possible research and development directions for elucidating the dynamic attributes of adsorbent tortuosity and applying them in real-scale adsorption-oriented water purification.The data acquired by filling in these research gaps can enable the design of adsorbents more adapted for real-scale water purification.

关键词： Adsorbent Tortuosity Porosity Pore diffusion models Aqueous systems

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Molecular engineering binuclear copper catalysts for selective CO_(2) reduction to C_(2) products

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Journal of Energy Chemistry 2024年第6期93卷 166-173,I0005页

作者： Qi Zhao Kai Lei Bao Yu Xia Rachel Crespo-otero Devis Di Tommaso Department of Chemistry School of Physical and Chemical SciencesQueen Mary University of LondonLondonE14NSUK Key Laboratory of Material Chemistry for Energy Conversion and Storage(Ministry of Education) Hubei Key Laboratory of Material Chemistry and Service FailureState Key Laboratory of Materials Processing and Die&Mould TechnologySchool of Chemistry and Chemical EngineeringHuazhong University of Science and Technology(HUST)Wuhan 430074HubeiChina Department of Chemistry University College LondonLondonWC1H 0AJUK Digital Environment Research Institute Queen Mary University of LondonEmpire HouseLondon E11HHUK

Molecular copper catalysts serve as exemplary models for correlating the structure-reaction-mechanism relationship in the electrochemical CO_(2) reduction(eCO_(2)R),owing to their adaptable environments surrounding the copper metal centres.This investigation,employing density functional theory calculations,focuses on a novel family of binuclear Cu molecular catalysts.The modulation of their coordination configuration through the introduction of organic groups aims to assess their efficacy in converting CO_(2) to C_(2)products.Our findings highlight the crucial role of chemical valence state in shaping the characteristics of binuclear Cu catalysts,consequently influencing the eCO_(2)R behaviour,Notably,the Cu(Ⅱ)Cu(Ⅱ)macrocycle catalyst exhibits enhanced suppression of the hydrogen evolution reaction(HER),facilitating proton trans fer and the eCO_(2)R process.Fu rthermore,we explo re the impact of diverse electro n-withdrawing and electron-donating groups coordinated to the macrocycle(R=-F,-H,and-OCH_3)on the electron distribution in the molecular catalysts.Strategic placement of-OCH_3 groups in the macrocycles leads to a favourable oxidation state of the Cu centres and subsequent C-C coupling to form C_(2) products.This research provides fundamental insights into the design and optimization of binuclear Cu molecular catalysts for the electrochemical conversion of CO_(2) to value-added C_(2) products.

关键词： Molecular catalyst design Selective CO_(2)reduction C_(2)products Density functional theory calculations

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Outcomes and variables that impact pneumatic retinopexies

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International Journal of Ophthalmology(English edition) 2024年第3期17卷 564-569页

作者： Maria V.Castanos Daniel Vail Oscar otero-Marquez Yash Shah Avnish Deobhakta New York Eye and Ear Infirmary of Mount Sinai New York 10003New YorkUSA

●AIM:To evaluate the efficacy of pneumatic retinopexy(PR)in patients undergoing PR as primary treatment for rhegmatogenous retinal detachment(RRD)and analyze the factors associated with success and failure in the studied population.●METHODS:A retrospective chart review was done of patients with RRD treated with PR as primary management method treated at New York Eye and Ear Infirmary of Mount Sinai between January 2017 and December 2021.Primary outcome measured success or failure of PR.Secondary outcome measured best corrected visual acuity(BCVA)after PR.A separate risk analysis was done to identify and stratify risks associated with success and failure of PR.●RESULTS:A total of 179 eyes from 179 patients were included for final analysis.The 83 patients(46.37%)achieved anatomical reattachment of the retina after primary PR with no need for additional surgery.The 96 patients(53.63%)had a failed primary PR and required a PPV and 6 of them required pars plana vitrectomy(PPV)with scleral buckle(SB).In total,19 cases(10.61%)were done as temporizing pneumatics,18(94.74%)underwent PPV,and 1(5.26%)did not require further intervention.The visual acuities at postoperative month 1(POM1)for patients who underwent primary PR successfully and for those that underwent PPV after,were 0.58(20/80)and 1.03(20/200)respectively.Patients who met Pneumatic Retinopexy Versus Vitrectomy for the Management of Primary Rhegmatogenous Retinal Detachment Outcomes Randomized Trial(PIVOT)criteria had a statistically significant decreased risk of primary PR failing(hazard ratio 0.29,P=0.00).Majority of missed or new breaks were found superotemporally.●CONCLUSION:PR is a good treatment option for treating RRDs in patients that meet PIVOT criteria and can be conducted as a temporizing measure.PIVOT criteria and fovea on status decrease the risk of PR failure.

关键词： retina pneumatic retinopexy rhegmatogenous retinal detachment

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From single to combinatorial therapies in spinal cord injuries for structural and functional restoration

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Neural Regeneration Research 2025年第3期20卷 660-670页

作者： Ernesto Doncel-Pérez Gabriel Guízar-Sahagún Israel Grijalva-otero Hospital Nacional de Parapléjicos de Toledo Servicio de Salud de Castilla La Mancha(SESCAM)ToledoSpain Medical Research Unit for Neurological Diseases UMAE Hospital de EspecialidadesCentro Médico Nacional Siglo XXIIMSSCiudad de MéxicoMéxico

Spinal cord injury results in paralysis, sensory disturbances, sphincter dysfunction, and multiple systemic secondary conditions, most arising from autonomic dysregulation. All this produces profound negative psychosocial implications for affected people, their families, and their communities;the financial costs can be challenging for their families and health institutions. Treatments aimed at restoring the spinal cord after spinal cord injury, which have been tested in animal models or clinical trials, generally seek to counteract one or more of the secondary mechanisms of injury to limit the extent of the initial damage. Most published works on structural/functional restoration in acute and chronic spinal cord injury stages use a single type of treatment: a drug or trophic factor, transplant of a cell type, and implantation of a biomaterial. Despite the significant benefits reported in animal models, when translating these successful therapeutic strategies to humans, the result in clinical trials has been considered of little relevance because the improvement, when present, is usually insufficient. Until now, most studies designed to promote neuroprotection or regeneration at different stages after spinal cord injury have used single treatments. Considering the occurrence of various secondary mechanisms of injury in the acute and sub-acute phases of spinal cord injury, it is reasonable to speculate that more than one therapeutic agent could be required to promote structural and functional restoration of the damaged spinal cord. Treatments that combine several therapeutic agents, targeting different mechanisms of injury, which, when used as a single therapy, have shown some benefits, allow us to assume that they will have synergistic beneficial effects. Thus, this narrative review article aims to summarize current trends in the use of strategies that combine therapeutic agents administered simultaneously or sequentially, seeking structural and functional restoration of the injured spinal cord.

关键词： neural regeneration neuroprotection spinal cord injury repair spinal cord injury treatments structural restoration of spinal cord injury

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The role of copper in enhancing the performance of heteronuclear diatomic catalysts for the electrochemical CO_(2)conversion to C_(1) chemicals

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Journal of Energy Chemistry 2023年第10期85卷 490-500,I0013页

作者： Qi Zhao Rachel Crespo-otero Devis Di Tommaso Department of Chemistry School of Physical and Chemical SciencesQueen Mary University of LondonLondon E14NSUK Department of Chemistry University College LondonLondon WC1H 0AJUK

Diatomic catalysts(DACs)with two adjacent metal atoms supported on graphene can offer diverse functionalities,overcoming the inherent limitations of single atom catalysts(SACs).In this study,density functional theory calculations were conducted to investigate the reactivity of the carbon dioxide(CO_(2))reduction reaction(CO_(2)RR)on metal sites of both DACs and SACs,as well as their synergistic effects on activity and selectivity.Calculation of the Gibbs free energies of CO_(2)RR and associated values of the limiting potentials to generate C_(1) products showed that Cu acts as a promoter rather than an active catalytic centre in the catalytic CO_(2)conversion on heteronuclear DACs(CuN_(4)-MN_(4)),improving the catalytic activity on the other metal compared to the related SAC MN_(4).Cu enhances the initial reduction of CO_(2)by promoting orbital hybridization between the key intermediate*COOH 2p-orbitals and the metals 3d-orbitals around the Fermi level.This degree of hybridization in the DACs CuN_(4)-MN_(4) decreases from Fe to Co,Ni,and Zn.Our work demonstrates how Cu regulates the CO_(2)RR performance of heteronuclear DACs,offering an effective approach to designing practical,stable,and high-performing diatomic catalysts for CO_(2)electroreduction.

关键词： Electrocatalytic CO_(2)reduction Single atom catalysts Diatomic catalysts Graphene Density functional theory calculations

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Forecasting Zonda Wind Occurrence with Vertical Sounding Data

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Advances in Atmospheric Sciences 2022年第1期39卷 161-177页

作者： Federico otero Diego C.ARANEO Instituto Argentino de Nivología Glaciología y Ciencias Ambientales(IANIGLA)CCT Mendoza-CONICET Av.Ruiz Leal s/n.Parque Gral.San MartínMendoza 5500Argentina

Zonda wind is a typical downslope windstorm over the eastern slopes of the Central Andes in Argentina,which produces extremely warm and dry conditions and creates substantial socioeconomic impacts.The aim of this work is to obtain an index for predicting the probability of Zonda wind occurrence.The Principal Component Analysis(PCA)is applied to the vertical sounding data on both sides of the Andes.Through the use of a binary logistic regression,the PCA is applied to discriminate those soundings associated with Zonda wind events from those that are not,and a probabilistic forecasting tool for Zonda occurrence is obtained.This index is able to discriminate between Zonda and non-Zonda events with an effectiveness close to 91%.The best model consists of four variables from each side of the Andes.From an eventbased statistical perspective,the probability of detection of the mixed model is above 97%with a probability of false detection lower than 7%and a missing ratio below 1%.From an alarm-based perspective,models exhibit false alarm rate below 7%,a missing alarm ratio lower than 1.5%and higher than 93%for the correct alarm ratio.The zonal component of the wind on both sides of the Andes and the windward temperature are the key variables in class discrimination.The vertical structure of Zonda wind includes two wind maximums and an unstable lapse rate at midlevels on the lee side and a wind maximum at 700 h Pa accompanied by a relatively stable layer near the mountain top.

关键词： Zonda wind foehn downslope windstorm forecasting

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Expression of miR‑138 in cryopreserved bovine sperm is related to their fertility potential

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Journal of Animal Science and Biotechnology 2023年第6期14卷 2383-2394页

作者： Albert Salas‑Huetos Jordi Ribas‑Maynou Yentel Mateo‑otero Carolina Tamargo Marc Llavanera Marc Yeste Unit of Cell Biology Department of BiologyFaculty of SciencesUniversity of GironaGirona 17003Spain. Biotechnology of Animal and Human Reproduction(TechnoSperm) Institute of Food and Agricultural TechnologyUniversity of GironaGirona 17003Spain. Department of Nutrition Harvard T.H.Chan School of Public HealthHarvard UniversityBostonMA 02115USA. Consorcio CIBER M.P.Fisiopatologia de la Obesidad y Nutricion(CIBERobn)Instituto de Salud Carlos III(ISCIII)Madrid 28029Spain. Present Address:Unit of Preventive Medicine and Public Health Faculty of Medicine and Health SciencesUniversitat Rovira i VirgiliReus 43201Spain. Department of Animal Selection and Reproduction The Regional Agri-Food Research and Development Service of Asturias(SERIDA)Gijon 33394Spain. Catalan Institution for Research and Advanced Studies(ICREA) Barcelona 08010Spain.

Background MicroRNAs(miRNAs)are small,single-stranded,non-coding RNA molecules of 22–24 nucleotides that regulate gene expression.In the last decade,miRNAs have been described in sperm of several mammals,including cattle.It is known that miRNAs can act as key gene regulators of early embryogenesis in mice and humans;however,little is known about the content,expression,and function of sperm-borne miRNAs in early bovine embryo.In this study,total sperm RNA was isolated from 29 cryopreserved sperm samples(each coming from a separate bull)using a RNeasy kit and treatment with DNase I.RNA concentration and purity were determined through an Epoch spectrophotometer and an Agilent Bioanalyzer.The expression of 10 candidate miRNAs in bovine sperm(bta-miR-10a,bta-miR-10b,bta-miR-138,bta-miR-146b,bta-miR-19b,bta-miR-26a,bta-miR-34a,bta-miR-449a,bta-miR-495 and btamiR-7),previously identified in testis and/or epididymis,was evaluated with RT-qPCR.The cel-miR-39-3p was used as a spike-in exogenous control.Nonparametric Mann–Whitney tests were run to evaluate which miRNAs were differentially expressed between bulls with high fertility[HF;non-return rates(NRR)ranging from 39.5 to 43.5]and those with subfertility(SF;NRR ranging from 33.3 to 39.3).Several sperm functionality parameters(e.g.,viability,membrane stability or oxygen consumption,among others)were measured by multiplexing flow cytometry and oxygen sensing technologies.Results RNA concentration and purity(260/280 nm ratio)(mean±SD)from the 29 samples were 99.3±84.6 ng/μL and 1.97±0.72,respectively.Bioanalyzer results confirmed the lack of RNA from somatic cells.In terms of the presence or absence of miRNAs,and after applying the Livak method,8 out of 10 miRNAs(bta-miR-10b,-138,-146b,-19b,-26a,-449a,-495,-7)were consistently detected in bovine sperm,whereas the other two(bta-miR-10a,and-34a)were absent.Interestingly,the relative expression of one miRNA(bta-miR-138)in sperm was significantly lower in the SF than in the HF group(P=0.038).In addition to being associated to

关键词： Bovine Fertility miRNAs Sperm

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Crohn's disease-related'gastrocnemius myalgia syndrome'successfully treated with infliximab:A case report

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World Journal of Gastroenterology 2022年第7期28卷 755-762页

作者： Julien Catherine Hazim Kadhim Frédéric Lambot Claire Liefferinckx Virginie Meurant Lukas otero Sanchez Institute for Medical Immunology UniversitéLibre de BruxellesGosselies 6041Belgium Department of Internal Medicine C.U.B.Hôpital ErasmeBrussels 1070Belgium NeuroMyopathology Unit(Anatomic Pathology Service)and Reference Center for Neuromuscular Pathology CHU BrugmannUniversitéLibre de BruxellesBrussels 1020Belgium Department of Internal Medicine Centre Hospitalier Universitaire TivoliLa Louvière 7100Belgium Department of Gastroenterology Hepatopancreatology and Digestive OncologyC.U.B.Hôpital ErasmeBrussels 1070Belgium Laboratory of Experimental Gastroenterology UniversitéLibre de BruxellesBrussels 1070Belgium Department of Emergency Medicine Centre Hospitalier Universitaire TivoliLa Louvière 7100Belgium

BACKGROUND Extra-intestinal manifestations in inflammatory bowel diseases(IBD)are frequent and involve virtually all organs.Conversely,the clinical characteristics and course of inflammatory myopathies in IBD remain poorly described and mostly related to orbital myositis.Moreover,alternative therapeutic strategies in non-responder patients to corticosteroid therapy must still be clarified.CASE SUMMARY A 33-year-old woman with a history of unclassified colitis presented with acute bilateral calf pain.On admission,her clinical and biological examinations were non-specific.However,magnetic resonance imaging showed bilateral inflammatory changes in gastrocnemius muscles suggestive of myositis.Muscle biopsy confirmed the diagnosis of myositis and demonstrated an inflammatory infiltrate mainly located in the perimysial compartment including lympho-plasmocytic cells with the formation of several granulomatous structures while the endomysium was relatively spared.The combined clinical,biological and histomyopathological findings were concordant with the diagnosis of‘gastrocnemius myalgia syndrome’(GMS),a rare disorder associated with Crohn’s disease(CD).Ileocolonoscopy confirmed CD diagnosis and systemic corticosteroids(CS)therapy was started,resulting in a rapid clinical improvement.During CS tapering,however,she experienced a relapse of GMS together with a severe active ileocolitis.Infliximab was started and allowed a sustained remission of both conditions at the latest follow-up(20 mo).CONCLUSION The GMS represent a rare CD-associated inflammatory myopathy for which anti-tumour necrosis factor-αtherapy might be considered as an effective therapeutic option.

关键词： Crohn’s disease Extra-intestinal manifestation Gastrocnemius myalgia syndrome Granulomatous myositis Anti-tumour necrosis factor-αtherapy Case report

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Determination of double-and single-stranded DNA breaks in bovine sperm is predictive of their fertilizing capacity

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Journal of Animal Science and Biotechnology 2023年第1期14卷 134-151页

作者： Jordi Ribas‑Maynou Ariadna Delgado‑Bermúdez Yentel Mateo‑otero Estel Vinolas Carlos O.Hidalgo WSteven Ward Marc Yeste Biotechnology of Animal and Human Reproduction(TechnoSperm) Faculty of SciencesInstitute of Food and Agricultural TechnologyUniversity of GironaC/Maria Aurèlia Campany69ES‑17003 GironaSpain. Unit of Cell Biology Department of BiologyFaculty of SciencesUniversity of GironaES‑17003 GironaSpain. Institute for Biogenesis Research Department of AnatomyBiochemistry&PhysiologyJohn A.Burns School of MedicineUniversity of Hawaii at ManoaHonoluluHI 96822USA. Department of Animal Selection and Reproduction The Regional Agri-Food Research and Development Service of Asturias(SERIDA)ES‑33394 GijónSpain. Catalan Institution for Research and Advanced Studies(ICREA) ES‑08010 BarcelonaSpain.

Background:The analysis of chromatin integrity has become an important determinant of sperm quality.In frozenthawed bovine sperm,neither the sequence of post-thaw injury events nor the dynamics of different types of sperm DNA breaks are well understood.The aim of the present work was to describe such sperm degradation aftermath focusing on DNA damage dynamics,and to assess if this parameter can predict pregnancy rates in cattle.Results:A total of 75 cryopreserved ejaculates from 25 Holstein bulls were evaluated at two post-thawing periods(0-2 h and 2-4 h),analyzing global and double-stranded DNA damage through alkaline and neutral Comet assays,chromatin deprotamination and decondensation,sperm motility,viability,acrosomal status,and intracellular levels of total ROS,superoxides and calcium.Insemination of 59,605 females was conducted using sperm from the same bulls,thus obtaining the non-return to estrus rates after 90 d(NRR).Results showed an increased rate of double-stranded breaks in the first period(0-2 h:1.29±1.01%/h vs.2-4 h:0.13±1.37%/h;P0.05).Finally,whereas no correlations between bull fertility and any dynamic parameter were found,there were correlations between the NRR and the basal percentage of highly-damaged sperm assessed with the alkaline Comet(Rs=-0.563,P=0.003),between NRR and basal progressive motility(Rs=0.511,P=0.009),and between NRR and sperm with high ROS at 4 h post-thaw(Rs=0.564,P=0.003).Conclusion:The statistically significant correlations found between intracellular ROS,sperm viability,sperm motility,DNA damage and chromatin deprotamination suggested a sequen

关键词： Cattle Chromatin Comet test DNA damage Fertility Sperm Sperm quality

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