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Effects of Hedera helix *** on the understory early regeneration in an oak temperate forest in Mexico City

Ecological Processes 2023年第1期12卷 438-449页

作者： Héctor Adrián jim.nez-Hernández Leticia Bonilla-Valencia Yuriana Martínez-Orea Mara Jessica Zamora-Almazan Francisco Javier Espinosa-García silvia Castillo-Argüero Facultad de Ciencias Universidad Nacional Autónoma de MéxicoMexico CityMexico Instituto de Investigaciones en Ecosistemas y Sustentabilidad Universidad Nacional Autónoma de MéxicoMichoacánMexico

Background Hedera helix *** an invasive weed species introduced in several regions of the world,so it is relevant to study its effects on the plant community and the changes occurring after its *** established invaded(with/without removal of ***)and non-invaded(with/without removal of the understory)plots to compare some community attributes in an oak forest in Mexico City and monitored them every 2 months for 1 year,taking soil samples to compare some edaphic variables between the *** invasive species negatively affect natural regenera-tion,seedlings of native species would be less abundant in plots invaded by *** than in the non-invaded *** invasive species modify the soil microbiota through exudates and often allelochemicals,soil chemical variables would differ between invaded and non-invaded *** The abundance of native species was lower in the invaded plots,but the richness and diversity of species were not statistically *** composition of the two invaded plots was similar to each other and more alike to that of the non-invaded *** species composition of the invaded plots was associated with soil potassium and phosphorus concentrations,whereas that of the non-invaded plots was more associated with soil nitrogen *** Following the removal of ***,several native species were registered,leading to a similar species composition as in the non-invaded plots,suggesting that some vegetation recovery can be expected following *** removal in 1 year.

关键词： Ivy Invasive plant Mechanical control Diversity Species composition

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Activation of Wnt/β-catenin signaling in abdominal aortic aneurysm:A potential therapeutic opportunity?

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Genes & Diseases 2023年第3期10卷 639-642页

作者： Lídia Puertas-Umbert Saray Varona Carme Ballester-Servera Judith Alonso silvia Aguiló Mar Orriols Ernesto Martínez-Martínez Antonio Rodríguez-Sinovas JoséMartínez-González Cristina Rodríguez Institut de Recerca Hospital de la Santa Creu i Sant Pau(IRHSCSP) Barcelona 08025Spain Instituto de Investigación Biomédica Sant Pau Barcelona 08036Spain CIBER de Enfermedades Cardiovasculares ISCIIIMadrid 28029Spain Instituto de Investigaciones Biomédicas de Barcelona-Consejo Superior de Investigaciones Científicas(IIBB-CSIC) Barcelona 08036Spain Facultad de Medicina Universidad Complutense de MadridInstituto de Investigación Sanitaria Gregorio MarañónMadrid 28040Spain Cardiovascular Diseases Research Group Vall d’Hebron Institut de RecercaVall d’Hebron Hospital UniversitariVall d’Hebron Barcelona Hospital CampusBarcelona 08035Spain

Abdominal aortic aneurysm (AAA) is a common degenerative vascular disease with a prevalence up to 8% in males over 60 years of age.1 This is a complex disorder characterized by permanent and focal dilation of abdominal aorta that exceeds at least 50% of the normal diameter. In these patients, the aortic diameter progressively expands boosted by smoking and aging as major risk factors. Unfortunately, aneurysm growth increases the risk of aortic rupture, a life-threatening emergency that carries a mortality rate of 80%. Despite the increasing effort of the scientific community to identify therapeutic strategies for AAA, there are currently no pharmacological tools that ameliorate aneurysm expansion, while the underlying mechanisms involved in this disease are not completely understood.

关键词： aneurysm aortic therapeutic

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Synthesis and Characterization of Chitosan Nanoparticles Loaded Botanical Extracts with Antifungal Activity on Colletotrichum gloeosporioides and Alternaria species

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Advances in Microbiology 2018年第4期8卷 286-296页

作者： Laura Leticia Barrera-Necha Zormy Nacary Correa-Pacheco silvia Bautista-Banos Mónica Hernández-López jorge Eduardo Martínez jim.nez Aime Frida Morán Mejía Instituto Politécnico Nacional Centro de Desarrollo de Productos Bióticos MorelosMéxico

In this study, chitosan nanoparticles (CSNPs) and chitosan nanoparticles- botanical extracts: EEA-CSNPs (ethanolic blueberry extract added chitosan nano-particles) and EMN-CSNPs (extract methanol of nanche added chitosan nano-particles) were characterized and evaluated in vitro ongrowth of Alternaria alternata isolated from Fig and Rosemary and Colletotrichum gloeosporioides isolated from Papaya and Soursop. From particle size distribution characteriza-tion, the size of nanoparticles increased after EEA incorporation. On the other hand, the smallest value of Z-average particle size was for the EMN-CSNPs. Zeta potential value decreased for CSNPs and EEA-CSNPs. However, when EMN is incorporated to CSNPs, the value is increased. From the results, it can be seen that the most stable suspension was EMN-CSNPs. After incorporation of Byrsonima crassifolia to CSNPs, no changes were observed in characteristic absorption bands for the FTIR spectra. However, after Vaccinium corymbosum incorporation to the CSNPs, changes were seen. For in vitro evaluation, CSNPs without EEA caused the total germination and sporulation inhibition of A. alternata from Rosemary. Incorporation of EMN to CSNPs improved the control of C. gloeosporioides with amycelial growth inhibition of 79% isolated from papaya and 82% isolated from soursop. In both isolated there were total germination inhibition. Overall, a synergistic effect between the chitosan and EMN was observed.

关键词： Zeta Potential In Vitro Fungi Blueberry Nanche

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Food and Nutritional Insecurity before and during the COVID-19 Pandemic in Households of Women Belonging to a Social Program

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Food and Nutrition Sciences 2021年第7期12卷 742-758页

作者： Monserrat Méndez-Pérez Rebeca Monroy-Torres silvia Delgado-Sandoval Karen Medina-jim.nez Laboratorio de Nutrición Ambiental y Seguridad Alimentaria. Departamento de Medicina y Nutrición Universidad de Guanajuato Campus León Leon Mexico Observatorio Universitario de Seguridad Alimentaria y Nutricional del Estado de Guanajuato Leon Mexico División de Ciencias de la Salud e Ingenierías Universidad de Guanajuato Campus Celaya-Salvatierra Celaya México

Introduction: According to the National Health and Nutrition Survey, the Mexican households in 2018 had food insecurity at 55.5% while in 2012 it was 70%. Food insecurity is a global health problem and now with the COVID-19 pandemic, it has increased. Objective: To compare the levels of food and nutritional insecurity in women’s households from two Social Impulse Centers of the Secretary for Human Social Development (SEDESHU) before and during the COVID-19 pandemic. Methods: A comparative and cross-sectional study was carried out in 41 women participating in a nutritional intervention program in two social promotion centers. Food security was measured with the Latin American and Caribbean Food Security Scale (ELCSA), comparing it in a period from January to April 2020: before and during the health contingency. Socio-economic and demographic variables were also measured, as well as access to water during the COVID-19 pandemic. Results: Food insecurity levels during the COVID-19 contingency were found to have increased by more than 60% (from 31.7% to 93%);the main risk factors associated with unemployment and access to healthy food. The COVID-19 contingency reflects impacts on households, but because women participated in the nutritional intervention program, it could influence by observing that, at least, the use of food was adequate since apparently food waste was minimal.

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Adherence of a Clinical Strain of Mycoplasma fermentans to Human Cultured Epithelial Cells

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Advances in Microbiology 2014年第11期4卷 726-735页

作者： Mónica Rosales-Pérez silvia Giono-Cerezo jorge Girón Antonio Yánez Lilia Cedillo Facultad de Agrobiología Universidad Autónoma de TlaxcalaMéxico Escuela Nacional de Ciencias Biológicas I.P.NMéxicoD.F.México Centro de Detección Biomolecular VI.E.P.B.U.A.P.PueblaPueMéxico Facultad de Estomatología B.U.A.P.PueblaMéxico Centro de Investigaciones en Ciencias Microbiológicas Instituto de CienciasB.U.A.P.PueblaPueMéxico

This study compares the kinetics of adherence of both the prototype strain PG-18 and the recently clinically isolated strain P-140 of Mycoplasma fermentans to HEp-2 cells. M. fermentans may induce respiratory and genitourinary tract infections. We investigated the presence of putative adhesins from strain P-140. A surface protein of 47 kDa, labeled SP47, isolated from M. fermentans P-140, seems to be involved in acterial adherence on HEp-2 cells;this study could allow helping understand the interaction between mycoplasmas and their hosts. Anti-SP47 antibodies inhibited the formation of bacterial clusters and adherence to cultured cells, quantified by ELISA. M. fermentans P-140 was more efficient at adhering to cultured HEp-2 cells than PG-18.

关键词： Mycoplasma fermentans Mycoplasmas Adherence Pathogenesis

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Landscape Analysis for PaV1 Infection in Lobsters Panulirus argus from the Artisanal Fishery of the Eastern Coast of Yucatan, Mexico

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Open Journal of Marine Science 2016年第3期6卷 386-394页

作者： Ruth A. Pérez-Campos Oswaldo Huchim-Lara silvia Salas María Liceaga-Correa Héctor Hernández-Nuñez Cristina Pascual-jim.nez Pascual-jim.nez Rossanna Rodríguez-Canul Laboratorio de Inmunología y Biología Molecular Mérida Yucatán México Laboratorio de Pesquerías Mérida Yucatán México Laboratorio de Percepción Remota y Sistemas de Información Geográfica Centro de Investigación y de Estudios Avanzados del IPN-Mérida (CINVESTAV-IPN) Merida Mexico Universidad Nacional Autónoma de México Facultad de Ciencias Unidad Académica Sisal Sisal Mexico

Panulirus argus virus 1 (PaV1) is considered a major threat to spiny lobsters Panulirus argus. In this study Geospatial analysis was used to analyze PaV1 distribution in an artisanal fishery of spiny lobster Panulirus argus population from the north coast of the Yucatan Peninsula. Adult and sub-adult P. argus and seabed coverage data were collected from thirty artisanal fishing sites. Five seabed coverage types were identified: seagrass;sand/seagrass mixture;sand only;coral/sand mixture;and seaweed. No juveniles were examined. Of the 358 collected lobsters, PaV1 was identified in four organisms (three sub-adults and one adult) from two fishing sites (termed A & B), both found in a seagrass coverage area. Overall prevalence was of 1.12%. Prevalence was of 20% (2/10) at one site and of 12.6% (2/16) at the other.

关键词： Panulirus argus PaV1 Geospatial Analysis Artisanal Fishery Seagrass

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Nutritional value of a partially defatted and a highly defatted black soldier fly larvae (Hermetia illucens L.) meal for broiler chickens: apparent nutrient digestibility,apparent metabolizable energy and apparent ileal amino acid digestibility

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Journal of Animal Science and Biotechnology 2017年第4期8卷 897-905页

作者： Achille Schiavone Michele De Marco silvia Martínez Sihem Dabbou Manuela Renna Josefa Madrid Fuensanta Hernandez Luca Rotolo Pierluca Costa Francesco Gai Laura Gasco Department of Veterinary Sciences University of Turin Largo Paolo Braccini 2 10095 Grugliasco TO Italy Department of Animal Production University of Murcia Campus de Espinardo 30071 Murcia Spain Department of Agricultural Forest and Food Sciences University of Turin Largo Paolo Braccini 2 10095 Grugliasco TO Italy Institute of Science of Food Production National Research Council Largo Paolo Braccini 2 10095 Grugliasco TO Italy

Background: The study aimed to determine the apparent total tract digestibility coefficients(ATTDC) of nutrients, the apparent metabolizable energy(AME and AMEn) and the amino acid(AA) apparent ileal digestibility coefficients(AIDC)of a partially defatted(BSFp) and a highly defatted(BSFh) black soldier fly larvae meal. The experimental diets were: a basal diet and two diets prepared by substituting 250 g/kg(w/w) of the basal diet with BSFp or BSFh, ***: Significant differences were found between BSFp and BSFh meals for ATTDC of the nutrients: BSFp resulted more digestible than BSFh, except for ATTDC of CP which did not differed between meals, while a statistical trend was observed for ATTDC of DM and EE. The AME and AMEn values were significantly(P < 0.05) different between the two BSF meals, with higher levels for BSFp(16.25 and 14.87 MJ/kg DM, respectively). The AIDC of the AA in BSFp ranged from 0.44 to 0.92, while in BSFh they ranged from 0.45 to 0.99. No significant differences were observed for the AA digestibility(0.77 and 0.80 for BSFp and BSFh, respectively), except for glutamic acid, proline and serine that were more digestible in the BSFh meal(P < 0.05).Conclusions: Defatted BSF meals can be considered as an excellent source of AME and digestible AA for broilers with a better efficient nutrient digestion. These considerations suggested the effective utilization of defatted BSF larvae meal in poultry feed formulation.

关键词： Amino acid Apparent digestibility Black soldier fly meal Broiler chicken Metabolizable energy

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Interaction of Acaena elongata *** Arbuscular Mycorrhizal Fungi under Phosphorus Limitation Conditions in a Temperate Forest

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Phyton-International Journal of Experimental Botany 2021年第2期90卷 605-619页

作者： Yasmin Vázquez-Santos Yuriana Martínez-Orea JavierÁlvarez-Sánchez NoéManuel Montaño Sara Lucía Camargo-Ricalde silvia Castillo-Argüero Departamento de Ecología y Recursos Naturales Facultad de CienciasUniversidad Nacional Autónoma de MéxicoFacultad de CienciasCiudad de México04510México Departamento de Biología División de Ciencias Biológicas y de la SaludUniversidad Autónoma Metropolitana-IztapalapaCiudad de México09340México

The aim of this study was to analyze the performance of Acaena elongata colonized by arbuscular mycorrhizal fungi(AMF)to different phosphorus(P)concentrations,as a measure of AMF ***,is a species from soils where P availability is limited,such as temperate *** research questions were:1)How do different P concentrations affect the AMF association in Acaena elongata,and 2)How does the AMF association influence ***’s growth under different P concentrations?***’s growth,P content in plant tissue,AMF colonization and dependency were measured under four P concentrations:control(0 g P kg^(-1)),low(0.05 g P kg^(-1)),intermediate(0.2 g P kg^(-1))and high(2 g P kg^(-1))in different harvests.A complete randomized block design was ***’s growth was higher under-AMF in intermediate and high P concentrations,and the lowest growth corresponded to+AMF in the low and intermediate P *** observed a negative effect on the root biomass under+AMF in intermediate P concentration,while the P concentration had a positive effect on the leaf area *** AMF colonization in *** decreased in the highest P concentration and it was favored under intermediate P concentration;while the low and the high concentrations generated a cost-benefit *** results suggest that the performance of some plant species in soils with low P availability may not be favored by their association with AMF,but a synergy between AMF and intermediate P concentrations might drive ***’s growth.

关键词： Abies religiosa forest arbuscular mycorrhizae plant growth soil fertilization

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The Drying of Pyridine Hydrobromide

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Chinese Journal of Chemical Engineering 1998年第2期6卷 76-80页

作者： RenéD.Peralta Rodríguez Raúl G.López Campos Jaime Wisniak Jacinto G.Rodríguez Gómez silvia Torres Rincón M.Esther Treviño Martínez Centro de Investigacion en Quimica Aplicada Blvd.Ing.Enrique Reyna Hermosillo No.140C.P.25100SaltilloCoahuilaMexico Department of Chemical Engineering Ben-Gurion University of the NegevBeer-ShevaIsrael

1 INTRODUCTIONThe drying of fine chemicals and pharmaceuticals is dominated by a number of special factorscompared to the drying of bulk *** include:very high value of product;lowthroughputs(typically,100 kg·h-1);materials that frequently possess toxic properties andare often sticky,pasty and difficult to handle when wet;the moisture to be evaporated ofteninvolves solvents;and multipurpose processing plants.

关键词： drying pyridine hydrobromide

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SIRT3-mediated inhibition of FOS through histone H3 deacetylation prevents cardiac fibrosis and inflammation

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Signal Transduction and Targeted Therapy 2020年第1期5卷 2322-2331页

作者： Xavier Palomer Msilvia Román-Azcona Javier Pizarro-Delgado Ana Planavila Francesc Villarroya Brenda Valenzuela-Alcaraz Fátima Crispi Álvaro Sepúlveda-Martínez Irene Miguel-Escalada jorge Ferrer JFrancisco Nistal Raquel García Mercy MDavidson Emma Barroso Manuel Vázquez-Carrera Department of Pharmacology Toxicology and Therapeutic ChemistryIBUB(Institut de Biomedicina de la Universitat de Barcelona)Research Institute-Pediatric Research InstituteHospital Sant Joan de Déuand CIBER de Diabetes y Enfermedades Metabólicas Asociadas(CIBERDEM)Faculty of Pharmacy and Food SciencesUniversity of BarcelonaBarcelonaSpain Department of Biochemistry and Molecular Biomedicine IBUB and CIBER Fisiopatología de la Obesidad y Nutrición(CIBEROBN)Faculty of BiologyUniversity of BarcelonaBarcelonaSpain aBCNatal-Barcelona Center for Maternal–Fetal and Neonatal Medicine(Hospital Clínic and Hospital Sant Joan de Deu) Institut d’Investigacions Biomèdiques August Pi i SunyerUniversitat de Barcelonaand Center for Biomedical Research on Rare Diseases(CIBER-ER)BarcelonaSpain Genomic Programming of Betacells Laboratory Institut d’Investigacions August Pi i Sunyer(IDIBAPS)and CIBERDEMBarcelonaSpain Section of Epigenomics and Disease Department of Medicineand National Institute for Health Research(NIHR)Imperial Biomedical Research CentreImperial College LondonLondonUK Servicio de Cirugía Cardiovascular Hospital Universitario Marqués de ValdecillaDepartamento de Ciencias Médicas y QuirúrgicasFacultad de MedicinaUniversidad de CantabriaInstituto de Investigación Marqués de Valdecilla(IDIVAL)Centro de Investigación Biomédica en Red Cardiovascular(CIBERCV)Instituto de Salud Carlos IIISantanderSpain Departamento de Fisiología y Farmacología Facultad de MedicinaUniversidad de CantabriaInstituto de Investigación Marqués de Valdecilla(IDIVAL)SantanderSpain Department of Radiation Oncology Columbia UniversityNew YorkNYUSA

Sirtuin 3(SIRT3)is a deacetylase that modulates proteins that control metabolism and protects against oxidative *** of SIRT3 activity has been proposed as a promising therapeutic target for ameliorating metabolic diseases and associated cardiac *** this study,we investigated the role of SIRT3 in inflammation and fibrosis in the heart using male mice with constitutive and systemic deletion of SIRT3 and human cardiac AC16 ***3 knockout mice showed cardiac fibrosis and inflammation that was characterized by augmented transcriptional activity of *** with this,SIRT3 overexpression in human and neonatal rat cardiomyocytes partially prevented the inflammatory and profibrotic response induced by TNF-α.Notably,these effects were associated with a decrease in the mRNA and protein levels of FOS and the DNA-binding activity of ***,we demonstrated that SIRT3 inhibits FOS transcription through specific histone H3 lysine K27 deacetylation at its *** findings highlight an important function of SIRT3 in mediating the often intricate profibrotic and proinflammatory responses of cardiac cells through the modulation of the FOS/AP-1 *** fibrosis and inflammation are crucial in the progression of cardiac hypertrophy,heart failure,and diabetic cardiomyopathy,our results point to SIRT3 as a potential target for treating these diseases.

关键词： SIRT3 inflammation cardiac

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