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Synergism Effect between Phenolic Metabolites and Endogenous Antioxidants in Terms of Antioxidant Activity

Advances in Chemical Engineering and Science 2014年第2期4卷 258-265页

作者： María Noguer ana B. cerezo M. Luisa Moyá ana M. Troncoso M. Carmen García-Parrilla Nutrición y Bromatología Facultad de Farmacia Universidad de Sevilla Sevilla Spain

Polyphenolic compounds, widely distributed in plant kingdom, have been exhaustively studied for their bioactive properties specially antioxidant activity. However, they are extensively metabolized by human organism and the resulting metabolites are largely responsible for their effects. Furthermore, they may interact with the endogenous antioxidant network being this possibility scarcely studied. Plasma antioxidant network encompasses antioxidant enzymes and other substances such as uric acid. In addition, ascorbic acid is the major compound representing water soluble compartment both in foods and human body. The interaction of this vitamin with phenolic compound is largely unexplored. This work aims to study if there is a synergic effect between phenolic metabolites and main antioxidants (uric and ascorbic acid). For this purpose, the antioxidant activity was evaluated in terms of ORAC (oxygen radical absorbance capacity) and FRAP (ferricreducing antioxidant power) as these tests involved either HAT (Hydrogen Atom Transfer) or SET (Single Electron Transfer) mechanisms. Additionally, a kinetic studied was developed to test if the rate constant presented a synergic effect. Protocatechuic acid, 3,4-dihydroxyphenylacetic acid, 3,4-dihydroxyphenylpropionic acid and 3-hydroxyphenylacetic acid were selected as they were metabolites of polyphenol compounds such as anthocyanins, quercetin, neohesperidin, chlorogenic acid and hesperetin present in wines, orange and strawberries. A synergic effect was proved for the combination of ascorbic acid with 3,4-dihydroxyphenylacetic acid, both in terms of antioxidant activity and potent increase of velocity of the antioxidant reaction that took place.

关键词： Kinetics Ascorbic Acid Uric Acid ORAC FRAP

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Treatment of spinal cord injury with biomaterials and stem cell therapy in non-human primates and humans

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Neural Regeneration Research 2025年第2期20卷 343-353页

作者： ana Milena Silva Olaya Fernanda Martins Almeida ana Maria Blanco Martinez Suelen Adriani Marques PhD Program in Pathological anatomy Federal University of Rio de JaneiroRio de JaneiroBrazil Biomedical Science Institute Federal University of Rio de JaneiroRio de JaneiroBrazil Graduate Program in Pathological anatomy Federal University of Rio de JaneiroRio de JaneiroBrazil Graduate Program in Pathological anatomy(PPGAP/UFRJ) Department of Neurobiology/Institute of BiologyCampus do GragoatáNiteróiRio de JaneiroBrazil

Spinal cord injury results in the loss of sensory,motor,and autonomic functions,which almost always produces permanent physical ***,in the search for more effective treatments than those already applied for years,which are not entirely efficient,researches have been able to demonstrate the potential of biological strategies using biomaterials to tissue manufacturing through bioengineering and stem cell therapy as a neuroregenerative approach,seeking to promote neuronal recovery after spinal cord *** of these strategies has been developed and meticulously evaluated in several animal models with the aim of analyzing the potential of interventions for neuronal repair and,consequently,boosting functional *** the majority of experimental research has been conducted in rodents,there is increasing recognition of the importance,and need,of evaluating the safety and efficacy of these interventions in non-human primates before moving to clinical trials involving therapies potentially promising in *** article is a literature review from databases(PubMed,Science Direct,Elsevier,Scielo,Redalyc,Cochrane,and NCBI)from 10 years ago to date,using keywords(spinal cord injury,cell therapy,non-human primates,humans,and bioengineering in spinal cord injury).From 110 retrieved articles,after two selection rounds based on inclusion and exclusion criteria,21 articles were ***,this review arises from the need to recognize the experimental therapeutic advances applied in non-human primates and even humans,aimed at deepening these strategies and identifying the advantages and influence of the results on extrapolation for clinical applicability in humans.

关键词： bioengineering biomaterials cell therapy humans non-human primates spinal cord injury stem cell therapy

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Neurodegeneration and choroidal vascular features on OCT in the progression to advanced age-related macular degeneration

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International Journal of Ophthalmology(English edition) 2025年第1期18卷 103-110页

作者： Ines Costa ana Carvalho Helton Andrade Bruno Pereira Pedro Camacho H&TRC-Health&Technology Research Center ESTeSL Escola Superior de Tecnologia da SaúdeInstituto Politécnico de LisboaLisbon 1990-096Portugal Escola Superior de Tecnologia da Saúde de Lisboa Instituto Politécnico de LisboaLisboa 1990-096Portugal Instituto de Retina de Lisboa IRLLisbon 1050-085Portugal iNOVA4Health NOVA Medical SchoolFaculdade de Ciencias MédicasNMSFCMUniversidade NOVA de LisboaLisbon 1150-82Portugal

AIM:To quantify and compare longitudinal thickness changes of the ganglion cell complex(GCC)and the choroid in patients with different patterns of age-related macular degeneration(AMD)***:Retrospective cohort analysis of anonymized data from participants aged 50y or more and diagnosed with early/intermediate AMD in at least one eye(with no evidence of advanced AMD).A total of 64 participants were included from the Instituto de Retina de Lisboa(IRL)study(IPL/2022/MetAllAMD_ESTeSL)and divided into 4 groups according to the Rotterdam classification for *** domain optical coherence tomography(SD-OCT)was used to assess and quantify GCC and choroid thickness at two time points(first visit vs last visit)with a minimum interval of ***:In the GCC inner ring,a thinner thickness(P=0.001)was observed in the atrophic AMD group(51.3±21.4μm)compared to the early AMD(84.3±11.5μm),intermediate AMD(77.6±16.1μm)and neovascular AMD(88.9±16.3μm)*** thickness quantification showed a generalized reduction in the central circle(P=0.002)and inner ring(P=0.001).Slight reductions in retinal thickness were more accentuated in the inner ring in the atrophic AMD(-13%;Panalyzed structures could be an indicator of risk of progression with neurodegenerative(GCC)or vascular(choroid)pattern in the intermediate and atrophic *** quantification of both structures can provide important information about the risk of disease progression in the early and intermediate stages but also for the evolution pattern into late stages(atrophic or neovascular).

关键词： age-related macular degeneration ganglion cell complex choroid,geographic atrophy choroidal neovascularization spectral domain optical coherence tomography

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Impacts of PI3K/protein kinase B pathway activation in reactive astrocytes: from detrimental effects to protective functions

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Neural Regeneration Research 2025年第4期20卷 1031-1041页

作者： Ramón Pérez-Núñez María Fernanda González ana María Avalos Lisette Leyton Cellular Communication Laboratory Programa de Biología Celular y MolecularCenter for Studies on ExerciseMetabolism and Cancer(CEMC)Instituto de Ciencias Biomédicas(ICBM)Facultad de MedicinaUniversidad de ChileSantiagoChile Advanced Center for Chronic Diseases(ACCDiS) Faculty of Chemical and Pharmaceutical Sciences&Faculty of MedicineUniversidad de ChileSantiagoChile Instituto de Ciencias Biomédicas Facultad de Ciencias de la SaludUniversidad Autónoma de ChileSantiagoChile

Astrocytes are the most abundant type of glial cell in the central nervous *** injury and inflammation,astrocytes become reactive and undergo morphological and functional *** on their phenotypic classification as A1 or A2,reactive astrocytes contribute to both neurotoxic and neuroprotective responses,***,this binary classification does not fully capture the diversity of astrocyte responses observed across different diseases and *** analysis has revealed that reactive astrocytes have a complex landscape of gene expression profiles,which emphasizes the heterogeneous nature of their *** actively participate in regulating central nervous system inflammation by interacting with microglia and other cell types,releasing cytokines,and influencing the immune *** phosphoinositide 3-kinase(PI3K)/protein kinase B(AKT)signaling pathway is a central player in astrocyte reactivity and impacts various aspects of astrocyte behavior,as evidenced by in silico,in vitro,and in vivo *** astrocytes,inflammatory cues trigger a cascade of molecular events,where nuclear factor-κB serves as a central mediator of the pro-inflammatory ***,we review the heterogeneity of reactive astrocytes and the molecular mechanisms underlying their *** highlight the involvement of various signaling pathways that regulate astrocyte reactivity,including the PI3K/AKT/mammalian target of rapamycin(mTOR),αvβ3 integrin/PI3K/AKT/connexin 43,and Notch/PI3K/AKT *** targeting the inactivation of the PI3K/AKT cellular signaling pathway to control reactive astrocytes and prevent central nervous system damage,evidence suggests that activating this pathway could also yield beneficial *** dual function of the PI3K/AKT pathway underscores its complexity in astrocyte reactivity and brain function *** review emphasizes the importance of employing astrocyte-exclusive models to underst

关键词： inflammation integrins neuroprotective neurotoxic phosphatidylinositol 3-kinase reactive astrocytes signal transduction Thy-1(CD90)

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Patient and physician factors contributing to delays in inflammatory bowel diseases:Enhancing timely diagnosis

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World Journal of Gastroenterology 2025年第6期31卷 115-120页

作者： Horia Minea ana-Maria Singeap Laura Huiban Cristina Maria Muzica Carol Stanciu Anca Trifan Department of Gastroenterology Faculty of Medicine“Grigore T.Popa”University of Medicine and PharmacyIasi 700115Romania Institute of Gastroenterology and Hepatology “St.Spiridon”University HospitalIasi 700111Romania

In this article,we comment on the article by Blüthner et *** article provides a comprehensive analysis of the factors contributing to the late detection of Crohn’s disease and ulcerative colitis within a German *** highlights the conse-quences on patient outcomes,particularly disease progression and the increased risk of developing *** study identifies specific predictors asso-ciated with both patient-related and physician-related delays,offering a detailed exploration of the initial ***,the article delves into the distinct patterns observed in the German population,stressing the unique aspects of diagnostic delays that may differ from those reported in other *** detailed examination offers valuable insights into the specific challenges faced within the German healthcare system and underscores the necessity of targeted interventions to facilitate early *** importance of improved screening tools,patient education,and better healthcare infrastructure is emphasized as crucial steps toward improving patient care in inflammatory bowel disease.

关键词： Inflammatory bowel disease Diagnostic delay Disease awareness Healthcare system Screening tools

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Agronomic treatments combined with embryo rescue for rapid generation advancement in tomato speed breeding

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Horticultural Plant Journal 2025年第1期11卷 239-250页

作者： Esther Gimeno-Paez Jaime Prohens Maria Moreno-Cervero ana de Luis-Margarit Maria Jose Diez Pietro Gramazio Escuela de Doctorado Universidad Catolica de Valencia San Vicente MartirGuillem de Castro 9446001 ValenciaSpain Instituto de Conservaciony Mejora dela Agrodiversidad Valenciana Universitat Politecnica de ValenciaCamino de Vera 1446022 ValenciaSpain Departamento de Ciencias Experimentales y Matematicas Facultad de Veterinaria y Ciencias ExperimentalesUniversidad Catolica de Valencia San Vicente MartirGuillem de Castro 9446001 ValenciaSpain

Unlike other major crops,little research has been performed on tomato to reduce the generation time for speed *** evaluated several agronomic treatments to reduce the generation time of tomato in the‘M82'(determinate)and‘Moneymaker'(indeterminate)varieties and evaluated the best combination in conjunction with embryo *** container sizes with volumes of 0.2 L(XS),0.45 L(S),0.8 L(M),1.3 L(L),and6 L(XL),were evaluated in the first experiment under the autumn *** found that plants grown in XL containers exhibited better development and required less time from sowing to anthesis(DSA)and from anthesis to fruit ripening(DAR).In the second experiment,using XL containers in the autumn-winter cycle,we evaluated the effects of cold priming at the cotyledonary stage,water stress,P supplementation,and K supplementation on generation *** to the control,we found that cold priming significantly reduced the number of leaves,plant height to first the inflorescence,and DSA(2.7 d),whereas K supplementation reduced the DAR(8.8 d).In contrast,water stress and P supplementation did not significantly affect any of the measured traits like DAR,DSA or fruit *** validate these data,in a third experiment with XL containers in the spring-summer cycle,the combination of cold priming and K supplementation was tested,confirming the significant effect of this combination on the reduction of generation time(2.9 d for DSA and 3.9 d for DAR)compared to the *** rescue during the cell expansion cycle(average of 22.0 d and 23.3 d after anthesis for‘M82'and‘Moneymaker',respectively)allowed the shortening of the generation time by 8.7 d in‘M82'and 11.6 d in‘Moneymaker'compared to the in planta fruit *** combination of agronomic treatments with embryo rescue can effectively increase the number of generations per year from three to four for speed breeding of tomato.

关键词： Solanum lycopersicum Generation time Speed breeding Container size Cold priming K supplementation Embryo rescue

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DLST mutations in pheochromocytoma and paraganglioma cause proteome hyposuccinylation andmetabolic remodeling

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Cancer Communications 2023年第7期43卷 838-843页

作者： Sara Mellid Fernando García Luis Javier Leandro-García Alberto Díaz-Talavera Ángel Mario Martínez-Montes Eduardo Gil Bruna Calsina María Monteagudo Rocío Letón Juan María Roldán-Romero María Santos Javier Lanillos Carlos Valdivia Natalia Martínez-Puente Javier de Nicolás-Hernández Scherezade Jiménez Manuel Pérez-Martínez Emiliano Honrado Javier Coloma ana cerezo Clara María Santiveri Manel Esteller Ramón Campos-Olivas Eduardo Caleiras Cristina Montero-Conde Cristina Rodríguez-Antona Javier Muñoz Mercedes Robledo Alberto Cascón Hereditary Endocrine Cancer Group Spanish National Cancer Research Centre(CNIO)MadridSpain Proteomics Unit Spanish National Cancer Research Centre(CNIO)MadridSpain Centro de Investigación Biomédica en Red de Enfermedades Raras(CIBERER) MadridSpain Monoclonal Antibodies Core Unit Spanish National Cancer Research Centre(CNIO)MadridSpain Confocal Microscopy Core Unit Spanish National Cancer Research Centre(CNIO)MadridSpain anatomical Pathology Service Hospital of LeónLeónCastilla y LeónSpain Structural Biology Programme Spanish National Cancer Research Centre(CNIO)MadridSpain CNIO-Lilly Cell Signalling and Immunometabolism Section Spanish National Cancer Research Centre(CNIO)MadridSpain Spectroscopy and Nuclear Magnetic Resonance Unit Spanish National Cancer Research Centre(CNIO)MadridSpain Josep Carreras Leukaemia Research Institute(IJC) BadalonaBarcelonaSpain Centro de Investigacion Biomedica en Red Cancer(CIBERONC) MadridSpain Institucio Catalana de Recerca i Estudis Avançats(ICREA) BarcelonaSpain Physiological Sciences Department School of Medicine and Health SciencesUniversity of Barcelona(UB)L’HospitaletBarcelonaSpain Histopathology Core Unit Spanish National Cancer Research Centre(CNIO)MadridSpain Cell Signaling and Clinical Proteomics Group Biocruces Bizkaia Health Research InstituteBarakaldoSpain Ikerbasque Basque Foundation for ScienceBilbaoSpain

Dear Editor,Of all human tumors,pheochromocytomas and paragangliomas(PPGLs)have the highest heritability *** 15%of PPGLs harbor mutations in genes encoding tricarboxylic acid(TCA)cycle-related enzymes that cause oncometabolite accumulation and drive tumorigenesis via metabolic adaptation to hypoxia and global hypermethylation[1].The dihydrolipoamide S-succinyltransferase(DLST)gene was recently described as a new PPGL susceptibility gene[2].

关键词： glioma remodeling cytoma

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Patients admitted in the intensive care unit after solid organ or bone marrow transplantation:Retrospective cohort study

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World Journal of Transplantation 2025年第1期15卷 95-104页

作者： ana Vujaklija Brajkovic Iva Kosuta Lucija Batur Sara Sundalic Marijana Medic Andro Vujevic Luka Bielen Jaksa Babel Department of Internal Medicine University Hospital Centre ZagrebZagreb 10000Croatia School of Medicine University of ZagrebZagreb 10000Croatia

BACKGROUND Solid organ transplantation(SOT)and hematopoietic stem cell transplantation(HSCT)revolutionized the survival and quality of life of patients with malignant diseases,various immunologic,and metabolic disorders or those associated with a significant impairment in a patient's quality of *** To investigate admission causes and treatment outcomes of patients after SOT or HSCT treated in a medical intensive care unit(ICU).METHODS We conducted a single-center,retrospective epidemiological study in the medical ICU at the University Hospital Centre Zagreb,Croatia covering the period from January 1,2018 to December 31,*** The study included 91 patients with either SOT[28 patients(30.8%)]or HSCT[63 patients(69.2%)].The median age was 56(43.2-64.7)years,and 60.4%of the patients were *** with SOT had more comorbidities than patients after HSCT[χ^(2)(5,n=141)=18.513,P<0.001].Sepsis and septic shock were the most frequent reasons for admission,followed by acute respiratory insufficiency in patients following *** rate significantly differed between SOT and HSCT[χ^(2)(1,n=91)=21.767,P<0.001].ICU survival was 57%in the SOT and 12.7%in the HSCT *** need for mechanical ventilation[χ^(2)(1,n=91)=17.081,P<0.001]and vasopressor therapy[χ^(2)(1,n=91)=36.803,P<0.001]was associated with *** necessity for acute renal replacement therapy did not influence patients'survival[χ^(2)(1,n=91)=0.376,P=0.54].In the subgroup of patients with infection,90%had septic shock,and the majority had positive microbiological samples,mostly Gram-negative *** ICU survival of patients with sepsis/septic shock cumulatively was 15%.The survival of SOT patients with sepsis/shock was 45%.CONCLUSION Patients with SOT or HSCT are frequently admitted to the ICU due to sepsis and septic *** advancements in critical care,the mortality rate of patients with refractory septic shock and multiorgan failure in this patient population is extremely hig

关键词： Liver transplantation Kidney transplantation Hematopoietic stem cell transplantation Critical care Sepsis Septic shock Mortality

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Creeping fat and gut microbiota in Crohn’s disease

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World Journal of Gastroenterology 2025年第1期31卷 16-23页

作者： ana EV Quaglio Daniéla O Magro Marcello Imbrizi Ellen CS De Oliveira Luiz C Di Stasi Ligia Y Sassaki Verum Ingredients Botucatu Technology ParkBotucatu 18605-525São PauloBrazil Department of Surgery Faculty of Medical SciencesState University of CampinasCampinas 13083-970São PauloBrazil Department of Gastroenterology Faculty of Medical SciencesUniversity of CampinasCampinas 13083-970São PauloBrazil Department of Internal Medicine Medical SchoolSão Paulo State UniversityBotucatu 18618-686São PauloBrazil Department of Biophysics and Pharmacology Institute of BiosciencesSão Paulo State UniversityBotucatu 18618-689São PauloBrazil

In this article,we explored the role of adipose tissue,especially mesenteric adipose tissue and creeping fat,and its association with the gut microbiota in the pathophysiology and progression of Crohn’s disease(CD).CD is a form of inflammatory bowel disease characterized by chronic inflammation of the gastrointestinal tract,influenced by genetic predisposition,gut microbiota dysbiosis,and environmental *** microbiota plays a crucial role in modulating immune response and intestinal inflammation and is associated with the onset and progression of ***,visceral adipose tissue,particularly creeping fat,a mesenteric adipose tissue characterized by hypertrophy and fibrosis,has been implicated in CD pathogenesis,inflammation,and *** bacteria from the gut microbiota may translocate into mesenteric adipose tissue,contributing to the formation of creeping fat and influencing CD *** creeping fat may be a protective barrier against bacterial invasion,its expansion can damage adjacent tissues,leading to *** gut microbiota through interventions such as fecal microbiota transplantation,probiotics,and prebiotics has shown potential in managing ***,more research is needed to clarify the mechanisms linking gut dysbiosis,creeping fat,and CD progression and develop targeted therapies for microbiota modulation and fat-related complications in patients with CD.

关键词： Creeping fat Mesenteric adipose tissue Gut microbiota Crohn’s disease Inflammatory bowel disease

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Beta thalassemia syndromes:New insights

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World Journal of Clinical Cases 2025年第10期13卷 1-8页

作者： ana Dordevic Ines Mrakovcic-Sutic Sonja Pavlovic Milena Ugrin Jelena Roganovic Department of Business Development Jadran Galenski LaboratorijRijeka 51000Croatia Faculty of Medicine University of RijekaRijeka 51000Croatia Institute of Molecular Genetics and Genetic Engineering University of BelgradeBelgrade 11000Serbia Department of Pediatric Hematology and Oncology Children’s Hospital ZagrebZagreb 10000Croatia Faculty of Biotechnology and Drug Development University of RijekaRijeka 51000Croatia

Beta thalassemia(β-thalassemia)syndromes are a heterogeneous group of inherited hemoglobinopathies caused by molecular defects in the beta-globin gene that lead to the impaired synthesis of beta-globin chains of the *** hallmarks of the disease include ineffective erythropoiesis,chronic hemolytic anemia,and iron *** presentation ranges from asymptomatic carriers to severe anemia requiring lifelong blood transfusions with subsequent devastating *** management of patients with severeβ-thalassemia represents a global health problem,particularly in low-income *** recently,management strategies were limited to regular transfusions and iron chelation therapy,with allogeneic hematopoietic stem cell transplantation available only for a subset of *** understanding of the underlying pathophysiological mechanisms ofβ-thalassemia syndromes and associated clinical phenotypes has paved the way for novel therapeutic options,including pharmacologic enhancers of effective erythropoiesis and gene therapy.

关键词： Beta thalassemia Hemoglobin Molecular defects Ineffective erythropoiesis Hemolysis Transfusion Iron chelation Novel therapies

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