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Contribution of extracellular vesicles to steatosis-related liver disease and their therapeutic potential

World journal of Hepatology 2024年第9期16卷 1211-1228页

作者： Margarita Montoya-Buelna Inocencia G Ramirez-Lopez Cesar A San juan-garcia jose j garcia-regalado Mariana S Millan-Sanchez Ulises de la Cruz-Mosso jesse Haramati Ana L Pereira-Suarez jose Macias-Barragan Laboratorio de Inmunología Departamento de FisiologíaUniversidad de GuadalajaraGuadalajara 44340JaliscoMexico Departamento de Ciencias de la Salud Centro Universitario de los VallesUniversidad de GuadalajaraAmeca 46600JaliscoMexico Doctorado en Ciencias Biomédicas Centro Universitario de Ciencias de la SaludUniversidad de GuadalajaraGuadalajara 44340JaliscoMexico Laboratorio de Inmunología Departamento de FisiologíaCentro Universitario de Ciencias de la SaludUniversidad de GuadalajaraGuadalajara 44340JaliscoMexico Red de Inmunonutrición y Genómica Nutricional en las Enfermedades Autoinmunes Departamento de NeurocienciasCentro Universitario de Ciencias de la SaludUniversidad de GuadalajaraGuadalajara 44340JaliscoMexico Laboratorio de Inmunobiología Departamento de Biología Celular y MolecularCentro Universitario de Ciencias Biológicas y AgropecuariasUniversidad de GuadalajaraZapopan 45200JaliscoMexico Instituto de Investigación en Ciencias Biomédicas Departamento de Microbiología y PatologíaCentro Universitario de Ciencias de la SaludUniversidad de GuadalajaraGuadalajara 44340JaliscoMexico

Extracellular vesicles(EVs)are small particles released by many cell types in different tissues,including the liver,and transfer specific cargo molecules from originating cells to receptor *** process generally culminates in activation of distant cells and inflammation and progression of certain *** global chronic liver disease(CLD)epidemic is estimated at 1.5 billion patients *** and liver cancer are the most common risk factors for ***,hepatitis C and B virus infection and obesity are also highly associated with ***,the etiology of many CLD pathophysiological,cellular,and molecular events are *** in hepatic lipid metabolism can lead to lipotoxicity events that induce EV ***,we aimed to present an overview of EV features,from definition to types and biogenesis,with particular focus on the molecules related to steatosis-related liver disease,diagnosis,and therapy.

关键词： Extracellular vesicles Exosomes Chronic liver disease Hepatocellular carcinoma Nonalcoholic fatty liver disease Nonalcoholic steatohepatitis

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Rapid on-site evaluation of endoscopic-ultrasound-guided fine-needle aspiration diagnosis of pancreatic masses

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World journal of Gastroenterology 2014年第28期20卷 9451-9457页

作者： julio Iglesias-garcia jose Lario-Noia Ihab Abdulkader j Enrique Domínguez-Muoz Department of Gastroenterology and Hepatology Foundation for Research in Digestive DiseasesUniversity Hospital of Santiago de Compostela Department of Pathology University Hospital of Santiago de Compostela

Endoscopic ultrasound (EUS) has become an essential tool for the study of pancreatic diseases. Specifically, EUS plays a pivotal role evaluating patients with a known or suspected pancreatic mass. In this setting, differential diagnosis remains a clinical challenge. EUS-guided fine-needle aspiration (FNA) and fine-needle biopsy (FNB) have been proven to be safe and useful tools in this setting. EUS-guided FNA and FNB, by obtaining cytological and/or histological samples, are able to diagnose pancreatic lesions with high sensitivity and specificity. In this context, several methodological features, trying to increase the diagnostic yield of EUS-guided FNA and FNB, have been evaluated. In this review, we focus on the role of rapid on-site evaluation (ROSE). From data reported in the literature, ROSE may increase diagnostic yield of EUS-FNA specimens by 10%-30%, and thus, diagnostic accuracy. However, we should point out that many recent studies have reported adequacy rates of > 90% without ROSE, indicating that, perhaps, at high-volume centers, ROSE may not be indispensable to achieve excellent results. The use of ROSE can be considered important during the learning curve of EUS-FNA, and also in hospital with diagnostic accuracy rates < 90%.

关键词： Endoscopic-ultrasound-guided fine-needle aspiration Rapid on-site evaluation Solid pancreatic tumors Diagnostic accuracy

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Repeatability of in-vitro optical quality measurements of intraocular lenses with a deflectometry technique effect of the toricity

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International journal of Ophthalmology(English edition) 2018年第7期11卷 1139-1144页

作者： Teresa Ferrer-Blasco Alberto Dominguez-Vicent Santiago garcia-Lazaro Maria Amparo Diez-Ajenjo jose F.Alfonso jose j.Esteve-Taboada Department of Optics and Optometry and Visual Science University of Valencia Valencia 46100 Spain Clinica Optometrica Fundacio Lluis Alcanyis Universitat de Valencia Valencia 46020 Spain Surgery Department Fernandez-Vega Ophthalmological Institute Oviedo 33012 Spain School of Medicine University of Oviedo Oviedo 33006 Spain

AIM： To evaluate the repeatability of an optical device for measuring the Zernike coefficients of toric intraocular lenses（IOLs） and assess whether its toricity has any impact in its repeatability. METHODS： An experienced technician used the NIMO TR1504 to measure the Zernike coefficients 30 times for an aperture of 4.50 mm for all lenses included. The IOLs included were divided into two group： toric and nontoric ones. The cylindrical powers of the toric lenses included in the present study were 1.00, 1.50, 2.25, 3.00 and 3.75 D. Finally, the repeatability of the NIMO TR1504 was described in terms of within subject standard deviation（Sw） and repeatability limit. RESULTS： The Sw was smaller than 0.011 μm for both lens groups and all Zernike coefficients, and the difference between both groups was smaller than 0.004 μm for all Zernike coefficients. Regarding the repeatability limit, this value was smaller than 0.025 μm for the toric lens group, and smaller than 0.031 μm for the non-toric lens one for all Zernike coefficients. Furthermore, the maximum difference between both lens groups was 0.010 μm. CONCLUSION： The repeatability of the NIMO TR1504 to measure the optical quality is high and independent of the lens toricity. These results reflect that this system is robust and could be used to measure the in-vitro optical quality of either toric or non-toric IOLs.

关键词： in-vitro measurements optical quality intraocular lens repeatability

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AMP-activated kinase in human spermatozoa： identification, intracellular localization, and key function in the reRulation of sperm motility

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Asian journal of Andrology 2017年第6期19卷 707-714页

作者： Violeta Calle-Guisado Ana Hurtado de Llera David Martin-Hidalgo jose Mijares Maria C Gil Ignacio S Alvarez Maria j Bragado Luis j garcia-Marin Research Group of Intracellular Signalling and Technology of Reproduction (SINTREP) School of Veterinary Medicine University of Extremadura Caceres Spain Assisted Reproduction Unit at the-Minimally Invasive surgery Center jesos Uson (CCMIjU) Caceres Spain Norba Clinic Caceres Spain Research Group of Reproduction and Embryo Development (REDES) University of Extremadura Badajoz Spain Extremadura Institute of Assisted Reproduction (IERA) Badajoz Spain.

AMP-activated kinase （AMPK）, a protein that regulates energy balance and metabolism, has recently been identified in boar spermatozoa where regulates key functional sperm processes essential for fertilization. This work＇s aims are AMPK identification, intracellular localization, and their role in human spermatozoa function. Semen was obtained from healthy human donors. Sperm AMPK and phospho-Thr172-AMPK were analyzed by Western blotting and indirect immunofluorescence. High- and low-quality sperm populations were separated by a 40%-80% density gradient. Human spermatozoa motility was evaluated by an Integrated Semen Analysis System （ISAS） in the presence or absence of the AMPK inhibitor compound C （CC）. AMPK is localized along the human spermatozoa, at the entire acrosome, midpiece and tail with variable intensity, whereas its active form, phospho-Thr172-AMPK, shows a prominent staining at the acrosome and sperm tail with a weaker staining in the midpiece and the postacrosomal region. Interestingly, spermatozoa bearing an excess residual cytoplasm show strong AMPK staining in this subcellular compartment. Both AMPK and phospho-Thr172-AMPK human spermatozoa contents exhibit important individual variations. Moreover, active AMPK is predominant in the high motility sperm population, where shows a stronger intensity compared with the low motility sperm population. Inhibition of AMPK activity in human spermatozoa by CC treatment leads to a significant reduction in any sperm motility parameter analyzed： percent of motile sperm, sperm velocities, progressivity, and other motility coefficients. This work identifies and points out AMPK as a new molecular mechanism involved in human spermatozoa motility. Further AMPK implications in the clinical efficiency of assisted reproduction and in other reproductive areas need to be studied.

关键词： AMP-activated kinase human spermatozoa immunolocalization sperm motility sperm quality

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Secondary male hypogonadism： a prevalent but overlooked comorbidity of obesity

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Asian journal of Andrology 2018年第6期20卷 531-538页

作者： Maria Molina-Vega Araceli Mufioz-Garach Miguel Damas-Fuentes josO Carlos Fernfindez-garcia Francisco j inahones Department of Endocrinology and Nutrition Virgen de la Victoria Universitary HospitalMalaga 29010Spain Institute of Biomedical Research in Malaga（IBIMA） Virgen de la Victoria Universitary HospitalMalaga 29010Spain CIBER Pathophysiology of Obesity and Nutrition（CB06/003） Institute of Health Carlos III（ISClII）Madrid 28029Spain.

Male hypogonadism associated with obesity is a very prevalent condition and is increasing in parallel with the epidemic prevalence of obesity. Low testosterone levels promote higher fat mass with reduced lean mass. Male hypogonadism is related to an increase in associated cardiometabolic complications, such as hypertension, type 2 diabetes mellitus, the metabolic syndrome, and cardiovascular disease. Its influence as a comorbidity of obesity is becoming more evident and should be evaluated and treated in at-risk patients. Mechanisms involved in this relationship include body composition changes, the presence of adipokines, insulin resistance, and other factors, some of which are still unknown. Weight loss and treatment to replace testosterone levels improve the metabolic profile and quality of life in patients with obesity and hypogonadism; these beneficial effects depend on treatment modality and duration of therapy. The use of testosterone replacement therapy may be indicated, as it has not been shown to increase cardiovascular risk, and retrospective studies suggest a reduction in events in men with metabolic syndrome and type 2 diabetes.

关键词： adipose tissue male hypogonadism obesity testosterone

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Pyrenetetraone-based covalent organic framework as an effective electrocatalyst for oxygen reduction reaction

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Nano Research 2022年第5期15卷 3907-3912页

作者： Paloma garcia-Arroyo Emiliano Martinez-Perinan jorge j.Cabrera-Trujillo Elena Salagre Enrique G.Michel jose I.Martinez Encarnacion Lorenzo jose L.Segura Departamento de Quimica Organica I Facultad de CC.QuimicasUniversidad Complutense de Madrid28040 MadridSpain Departamento de Quimica Analitica y Analisis Instrumental Facultad de CienciasUniversidad Autónoma de Madrid28049 MadridSpain Departamento de Fisica de la Materia Condensada Universidad Autónoma de Madrid28049 MadridSpain Condensed Matter Physics Center(IFIMAC) Universidad Autónoma de Madrid28049 MadridSpain Departamento de Nanoestructuras SuperficiesRecubrimientos y Astrofisica MolecularInstituto de Ciencia de Materiales de Madrid(ICMMCSIC)28049 MadridSpain Instituto Madrileno de Estudios Avanzados en Nanociencia(IMDEA-Nanociencia) 28049 MadridSpain Institute for Advanced Research in Chemical Sciences(IAdChem) Universidad Autonoma de Madrid28049 MadridSpain

A novel porous and crystalline two-dimensional(2D)electrochemically active covalent organic framework(COF)based on ortho-quinone units has been prepared as an innovative approach towards the development of organic cathode materials with multiple redox sites as an efficient electrocatalyst for the oxygen reduction reaction(ORR).In contrast with most of the previously reported COFs as electrocatalysts for the ORR,the electrocatalytic application of this material towards ORR has been investigated without adding any metal or conductive supporting material and avoiding any additional carbonization ***,the electrochemical properties of the COF material have been compared with two analogue amorphous frameworks with similar chemical composition,which points out the important role of the enhanced crystallinity and porosity of the COF network in its superior performance as an electrocatalyst towards ORR.

关键词： electrocatalysis oxygen reduction reaction metal free pyrenetetraone covalent organic framework

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Filling the Gaps to Solve the Extensin Puzzle

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Molecular Plant 2018年第5期11卷 645-658页

作者： Eliana Marzol Cecilia Borassi Mauro Bringas Ana Sede Diana Rosa Rodriguez garcia Luciana Capece jose M. Estevez Fundacion Instituto Leloir and Instituto de Investigaciones Bioquimicas de Buenos Aires (IIBBA-CO.NICEr) Avenida Patricias Argentinas 435 Buenos AiresCP C1405BWE Argentina Departamento de Quimica Inorganica Analitica y Quimica Fisica Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires (INQUIMAE-CONICET)Buenos Aires CP C1428EGA Argentina Instituto de Investigaciones en Ingenierfa Genetica y Biologia Molecular Dr. Hector Torres (INGEBI-CONICET) Vuelta de Obligado 2490 Buenos Aires C1428ADNArgentina

Extensins （EXTs） are highly repetitive plant O-glycoproteins that require several post-translational modifi- cations （PTMs） to become functional in plant cell walls. First, they are hydroxylated on contiguous proline residues; then they are O-glycosylated on hydroxyproline and serine. After secretion into the apoplast, O-glycosylated EXTs form a tridimensional network organized by inter- and intra-Tyr linkages. Recent studies have made significant progress in the identification of the enzymatic machinery required to process EXTs, which includes prolyl 4-hydroxylases, glycosyltransferases, papain-type cysteine endopeptidases, and peroxidases. EXTs are abundant in plant tissues and are particularly important in rapidly expanding root hairs and pollen tubes, which grow in a polar manner. Small changes in EXT PTMs affect fastgrowing cells, although the molecular mechanisms underlying this regulation are unknown. In this review, we highlight recent advances in our understanding of EXT modifications throughout the secretory pathway, EXT assembly in cell walls, and possible sensing mechanisms involving the Catharanthus roseus cell surface sensor receptor-like kinases located at the interface between the apoplast and the cytoplasmic side of the plasma membrane.

关键词： Arabidopsis thaliana cysteine endopeptidases extensins glycosyltransferases peroxidases prolyl 4-hydroxylases

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Beneficial effects of saffron(Crocus sativus L.) in ocular pathologies, particularly neurodegenerative retinal diseases

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Neural Regeneration Research 2020年第8期15卷 1408-1416页

作者： jose A.Fernandez-Albarral Rosa de Hoz Ana I.Ramirez Ines Lopez-Cuenca Elena Salobrar-garcia Maria D.Pinazo-Duran jose M.Ramirez juan j.Salazar Instituto de Investigaciones Oftalmologicas Ramon Castroviejo MadridSpain Departamento de Inmunologia Oftalmologia y ORLFacultad de Optica y OptometriaMadridSpain Departamento de Inmunologia Oftalmologia y ORLFacultad de MedicinaMadridSpain Unidad de Investigacion Oftalmologica Santiago Grisolia Universidad de ValenciaValenciaSpain

Saffron(Crocus sativus L.)has been traditionally used in food preparation and as a medicinal *** currently has numerous therapeutic properties attributed to it,such as protection against ischemia,as well as anticonvulsant,antidepressant,anxiolytic,hypolipidemic,anti-atherogenic,anti-hypertensive,antidiabetic,and anti-cancer *** addition,saffron has remarkable beneficial properties,such as anti-apoptotic,anti-inflammatory and antioxidant activities,due to its main metabolites,among which crocin and crocetin stand ***,increasing evidence underwrites the possible neuroprotective role of the main bioactive saffron constituents in neurodegenerative diseases,such as Parkinson’s and Alzheimer’s diseases,both in experimental models and in clinical studies in ***,saffron supplementation is being tested for ocular neurodegenerative pathologies,such as diabetic retinopathy,retinitis pigmentosa,age-related macular degeneration and glaucoma,among others,and shows beneficial *** present article provides a comprehensive and up to date report of the investigations on the beneficial effects of saffron extracts on the main neurodegenerative ocular pathologies and other ocular *** review showed that saffron extracts could be considered promising therapeutic agents to help in the treatment of ocular neurodegenerative diseases.

关键词： AMD crocetin crocin Crocus sativus L. diabetic retinopathy glaucoma neuroprotection ocular diseases retinitis pigmentosa saffron safranal

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Acute hepatitis with autoimmune features after COVID-19 vaccine:coincidence or vaccine-induced phenomenon?

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Gastroenterology Report 2022年第1期10卷 628-631页

作者： jose M.Pinazo-Bandera Alicia Hernandez-Albujar Ana Isabel garcia-Salguero Isabel Arranz-Salas Raul j.Andrade Mercedes Robles-Diaz Division of Gastroenterology and Hepatology Instituto de Investigacion Biomedica de Malaga-IBIMAHospital Universitario Virgen de la VictoriaUniversidad de MalagaMalagaSpain Division of Anatomical Pathology Hospital Universitario Virgen de la VictoriaMalagaSpain Centro de Investigacion Biomedica en Red de Enfermedades Hepaticas y Digestivas(CIBERehd) MadridSpain

Introduction Autoimmune diseases result from a breach of immunological self-tolerance and tissue damage by autoreactive T *** acute respiratory syndrome coronavirus-2(SARS-CoV-2)infection is characterized by an inflam... 详细信息

关键词： autoimmune vaccine acute

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Nanostructured biohybrid material with wide-ranging antiviral action

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Nano Research 2023年第8期16卷 11455-11463页

作者： Noelia Losada-garcia Angela Vazquez-Calvo David Ortega-Alarcon Olga Abian Adrian Velazquez-Campoy Pilar Domingo-Calap Antonio Alcami jose M.Palomo Instituto de Catálisis y Petroleoquímica(ICP) CSICC/Marie Curie 2.Madrid 28049Spain Centro de Biología Molecular Severo Ochoa Consejo Superior de Investigaciones Científicas(CSIC)-Universidad Autónoma de Madrid(UAM)Madrid 28049Spain Institute of Biocomputation and Physics of Complex Systems(BIFI) Joint Unit GBsC-CSIC-BIFIUniversity of ZaragozaZaragoza 50018Spain Fundación Instituto de Investigación Sanitaria de Aragón(IIS Aragón) Zaragoza 50009Spain CIBERehd Madrid 28029Spain Instituto de Biología Integrativa de Sistemas I2SyBioUniversitat de València-CSICValència E-46071Spain

Respiratory pathogens kill more people than any other infectious agent each year *** of novel,economically friendly,sustainable,and highly efficient materials against viruses is a major ***,we describe a nanostructured material composed of very small crystalline phosphate copper nanoparticles synthesized using a new biohybrid technology that employs a biological agent for its formation at room temperature in aqueous *** evaluation of different enzymes in the final preparation of the nanomaterial or even in synthetic methods was *** characterization revealed the formation of Cu species in the protein *** best biomaterial synthesized using a lipase called BioCuNPs showed excellent inhibition capacity against functional proteins of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2);for example,assent 3-chymotrypsin like protease(3CLpro)complete inhibition was achieved by using 5µg/mL,or acetone(ACE)–spike protein interaction was inhibited by more than 80%in the presence of 400µg/mL of *** these in vitro results into account,an efficacy analysis against human coronavirus 229E(HCoV-E229)coronavirus was performed.A virus reduction of 99%was obtained in 5 ***,SARS-CoV-2 virus was tested to demonstrate high efficiency,with>99%inhibition in 15 min using 500 microgram of *** determine the wide applicability of this nanohybrid against viruses,an evaluation was carried out against a non-enveloped virus such as Human Rhinovirus(HRV-14),obtaining a virus reduction of 99.9%in 5 ***,the virucidal capacity against different bacteriophages was also evaluated,obtaining an excellent inhibition effect against PhageΦX174(99.999%reduction in 5 min).

关键词： antiviral compound coronaviruses copper nanoparticles nanobiotechnology viruses

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