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Highly divergent sympatric lineages of Leptotila verreauxi(Aves:Columbidae)suggest a secondary contact area in the Isthmus of Tehuantepec,Mexico

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Avian Research 2024年第1期15卷 12-21页

作者： Orlando J.Espinosa-Chávez Adolfo G.Navarro-Sigüenza Hernando Rodríguez-Correa Luis A.Sánchez-González Museo de Zoología“Alfonso L.Herrera” Depto.de Biología EvolutivaFacultad de CienciasUniversidad Nacional Autonoma de MexicoApdo.Postal 70-399CP 04510Ciudad de MexicoMexico posgrado en ciencias Biologicas Unidad de PosgradoEdificio D1◦PisoCircuito de PosgradosCiudad UniversitariaUniversidad Nacional Autonoma de MexicoCoyoacanCP 04510CDMXMexico Escuela Nacional de Estudios Superiores Unidad Morelia Universidad Nacional Autonoma de Mexico.Antigua Carretera a Patzcuaro No.8701 Col.Ex Hacienda de San Jose de la HuertaC.P.58190MoreliaMichoacanMexico

Due to a complex geological and biotic history,the Isthmus of Tehuantepec(IT),has been long recognized as a driver for the evolutionary divergence of numerous lowland and highland *** distributed in the lowlands of the American continent,the White-Tipped Dove(Leptotila verreauxi)is a polytypic species with 13 recognized *** of these have been recorded in Mexico,and the distribution of three abuts at the IT,suggesting a contact *** estimate phylogenetic patterns,divergence times and genetic differentiation,we examined two mt DNA(ND2 and COI)and one n DNA(β-fibint 7)*** also used correlative ecological niche models(ENM)to assess whether ecological differences across the IT may have acted as a biogeographical *** estimated paleodistributions during the Middle Holocene,last Glacial Maximum and last Interglacial,to evaluate the influence of climate changes on the distribution and demographic *** results showed genetically distinct lineages that diverged approximately 2.5 million years *** and ecological factors may have played a dual role in promoting differentiation,but also in the formation of a secondary contact zone in the southern *** ecological niche comparisons indicated that the ecological niche of sympatric lineages at the IT are not identical,suggesting niches divergence;in addition,environmental niche models across the region indicated no abrupt biogeographic barriers,but the presence of regions with low *** results suggest that genetic differentiation originated by a vicariant event probably related to environmental factors,favored the evolution of different ecological ***,the absence of a biogeographic barrier but the presence of less suitable areas in the contact regions,suggest that secondary contact zones may be also maintained by climatic factors for the eastern group,but also by biotic interactions for the western group.

关键词： Biogeographical boundary Humid and dry forests Isthmus of Tehuantepec Phylogeography Secondary contact

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Breaking paradigms: Long non-coding RNAs forming gene fusions with potential implications in cancer

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Genes & Diseases 2024年第3期11卷 311-323页

作者： David Sanchez-Marin Macrina Beatriz Silva-Cazares Fany Iris Porras-Reyes Rebeca Garcia-Roman Alma D.Campos-Parra posgrado en ciencias Biologicas Facultad de MedicinaUniversidad Nacional Autonoma de MexicoCiudad de MexicoC.P.04360Mexico Unidad Academica Multidisciplinaria Region Altiplano Universidad Autonoma de San Luis Potost(UASLP)Carretera a Cedral Km 5+600Ejido San Jose de la TrojesMatehualaSan Luis PotosiC.P.78760Mexico Servicio de Anatomia Patologica Instituto Nacional de Cancerologia(INCan)Nino JesuisTlalpanCiudaddeMexicoC.P.14080Mexico Instituto de Salud Publica Universidad Veracruzana(UV)Av.Dr LuisDr.Castelazo Ayala s/nCol.Industrial AnimasXalapaVeracruzC.P.91190Mexico

Long non-coding RNAs(lncRNAs)are non-coding RNAs longer than 200 nucleotides with dynamic regulatory *** interact with a wide range of molecules such as DNA,RNA,and proteins to modulate diverse cellular functions through several mechanisms and,if deregulated,they can lead to cancer development and ***,it has been described that IncRNAs are susceptible to form gene fusions with mRNAs or other IncRNAs,breaking the paradigm of gene fusions consisting mainly of protein-coding ***,their biological significance in the tumor phenotype is still ***,their recent identification opens a new line of research to study their biological role in tumor-igenesis,and their potential as biomarkers with clinical relevance or as therapeutic *** present study aimed to review the IncRNA fusions identified so far and to know which of them have been associated with a potential *** address the current challenges to deepen their study as well as the reasons why they represent a future therapeutic window incancer.

关键词： Cancer Genefusions IncRNAs ncRNAs Therapy

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deregulation of interferon-gamma receptor 1 expression and its implications for lung adenocarcinoma progression

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World Journal of Clinical Oncology 2024年第2期15卷 195-207页

作者： Angeles C Tecalco-Cruz Karen H Medina-Abreu Enrique Oropeza-Martínez Jesus Zepeda-Cervantes AleidaVázquez-Macías Marina Macías-Silva posgrado en ciencias Genómicas Universidad Autónoma de la Ciudad de MéxicoCDMX 03100Mexico facultad de Medicina Veterinaria y Zootecnia Universidad Nacional Autónoma de MéxicoCDMX 04510Mexico Colegio de ciencias y Humanidades Universidad Autónoma de la Ciudad de MéxicoCDMX 03100Mexico Instituo de Fisiología Celular Universidad Nacional Autónoma de MéxicoCDMX 04510Mexico

Interferon-gamma(IFN-γ)plays a dual role in cancer;it is both a pro-and an antitumorigenic cytokine,depending on the type of *** deregulation of the IFN-γcanonic pathway is associated with several disorders,including vulner-ability to viral infections,inflammation,and cancer *** particular,the interplay between lung adenocarcinoma(LUAD)and viral infections appears to exist in association with the deregulation of IFN-γ*** this mini-review,we investigated the status of the IFN-γsignaling pathway and the expression level of its components in ***,a reduction in IFNGR1 expression seems to be associated with LUAD progression,affecting defenses against viruses such as severe acute respiratory syndrome coronavirus *** addition,alterations in the expression of IFNGR1 may inhibit the antiproliferative action of IFN-γsignaling in LUAD.

关键词： Interferon-gamma IFNGR1 JAK1 Antiviral Anti-tumor Lung adenocarcinoma

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Biocompatibility and electrochemical evaluation of ZrO_(2) thin films deposited by reactive magnetron sputtering on MgZnCa alloy

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Journal of Magnesium and Alloys 2021年第6期9卷 2019-2038页

作者： Benjamín Millán-Ramos Daniela Morquecho-Marín Phaedra Silva-Bermudez David Ramírez-Ortega Osmary depablos-Rivera Julieta García-López Mariana Fernández-Lizárraga JoséVictoria-Hernández Dietmar Letzig Argelia Almaguer-Flores Sandra E.Rodil Instituto de Investigaciones en Materiales Universidad Nacional Autónoma de MéxicoCDMX 04510Mexico posgrado en Ciencia e Ingeniería de Materiales Universidad Nacional Autónoma de MéxicoCDMX 04510Mexico Unidad de Ingeniería de Tejidos Terapia Celular y Medicina RegenerativaInstituto Nacional de Rehabilitación Luis Guillermo IbarraCDMX 14389Mexico posgrado en ciencias Médicas Odontológicas y de la SaludUniversidad Nacional Autónoma de MéxicoCDMX 04510Mexico Instituto de ciencias Aplicadas y Tecnologia Universidad Nacional Autónoma de MéxicoCDMX 04510Mexico posgrado de Doctorado en ciencias en Biomedicina y Biotecnología Molecular Escuela Nacional de Ciencias BiológicasInstituto Politécnico NacionalCDMX 11340Mexico Institute of Material and Process design Helmholtz-Zentrum GeesthachtMax-Planck-Strasse 1Geesthacht 21502Germany Magnesium Innovation Centre MagIC Helmholtz-Zentrum GeesthachtMax-Planck-Strasse 1Geesthacht 21502Germany laboratorio de Biointerfases Facultad de OdontologíaDivisión de Estudios de Posgrado e InvestigaciónUniversidad Nacional Autónoma de MéxicoCDMX 04510Mexico

Biodegradable magnesium alloys are promising candidates for temporary fracture fixation devices in orthopedics;nevertheless,its fast degradation rate at the initial stage after implantation remains as one of the main challenges to be ***_(2)-based coatings to reduce the degradation rate of the Mg-implants are an attractive solution since they show high biocompatibility and *** this work,the degradation,cytotoxicity,and antibacterial performance of ZrO_(2)thin films deposited by magnetron sputtering on a Mg-Zn-Ca alloy was ***-term degradation of ZrO_(2)-coated and uncoated samples was assessed considering electrochemical techniques and H_(2)evolution(gas chromatography).Additionally,long term degradation was assessed by mass-loss *** results showed that a 380 nm ZrO_(2)coating reduces the degradation rate and H_(2)evolution of the alloy during the initial 3 days after immersion but allows the degradation of the bare alloy for the *** ZrO_(2)coating does not compromise the biocompatibility of the alloy and permits better cell adhesion and proliferation of mesenchymal stem cells directly on its surface,in comparison to the bare ***,the ZrO_(2)coating prevents the adhesion and biofilm formation of ***.

关键词： Zirconium dioxide Magnetron sputtering Short-term degradation H_(2)evolution

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Insecticidal Effect of Green Bimetallic Nanoparticles from Crotalaria longirostrata on Cotton Mealybug,Phenacoccus solenopsis

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Journal of Renewable Materials 2022年第10期10卷 2543-2552页

作者： Vianey Mendez-Trujillo Benjamín Valdez-Salas Mario Curiel-Alvarez Ernesto Beltran-Partida Arnoldo Alfaro-Corres EsaúRuiz-Sanchez Gerardo Bautista-Trujillo Olivia Tzintzun Camacho Onecimo Grimaldo-Juarez Carlos Ceceña-Duran Carlos Ail-Catzin Daniel González-Mendoza facultad de Medicina de la Universidad Autónoma de Baja California Dr.Humberto Torres Sanginés S/NCentro CívicoMexicaliBaja CaliforniaMéxico Instituto de Ingeniería de la Universidad Autónoma de Baja California Calle de la Normal S/N y Boulevard Benito JuárezMexicaliBaja CaliforniaMéxico Instituto Tecnológico de Conkal División de Estudios de Posgrado e InvestigaciónAntigua Carretera Mérida-MotulConkalYucatánMéxico facultad de Medicina Veterinaria y Zootecnia de la Universidad Autónoma de Chiapas ChiapasMéxico Universidad Autónoma de Baja California Instituto de Ciencias AgrícolasBaja CaliforniaMéxico

The present study was conducted to evaluate the impact of bimetallic nanoparticles(NPs)of copper(Cu)and zinc(Zn)from Crotalaria longirostrata on the insect mortality and cell viability of Phenacoccus *** biosynthesis of bimetallic nanoparticles(Cu/Zn-NPs)from *** was confirmed by the presence of a single peak around 378 *** hydrodynamic diameter of the Cu/Zn nanoparticles varied from 59 to 119 nm and their zeta potential was found to be−30.90 *** EDX analysis showed a strong signal for Cu and Zn(8 and 8.6 keV,respectively).The Cu/Zn-NPs showed an effective insecticide activity against *** with 63%of insect mortality after 96 h ***,further studies about nanotoxicity of Cu/Zn-NPs from *** are needed to reveal the exact mechanism of nanoparticles toxicity in insects.

关键词： Phytonanoparticles chipilin biocontrol agronanotechnology

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Ar/N2/CH4 Glow Discharge at Low Pressures

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Journal of Physical Science and Application 2012年第8期2卷 283-288页

作者： Leomar Salazar-Flores Horacio Martinez-Valencia Alfonso Guerrero-Tapia Pedro Guillermo Reyes-Romero posgrado en ciencias Fisicas Universidad Nacional Autonoma de Mexico Avenida Universidad 1000 05000 Mdxico D.F. Mexico Instituto de ciencias Fisieas Universidad Nacional Autonoma de Mexico Apartado postal 48-3 62251 Cuernavaca Morelos Mexico estudiante del posgrado de la facultad de ciencias Universidad Autonoma del Estado de Mexico Instituto Literario 100 Centro 50000 Toluca Estado de Mexico Mexico facultad de ciencias Universidad Autonoma del Estado de Mexico Instituto Literario 100 Centro 50000 Toluca Estado de Mexieo Mexico

Ar/N2/CH4 glow discharge at low-pressure are studied in a closed system. The plasma was produced in 79.6% N2-15.4% Ar- 5.0% CH4 ternary mixture at pressures between 0.5 and 10.0 Torr. The diagnostic has been made by optical emission spectroscopy （OES）. The principal species observed were： N2, N2＋, CH＋, CN, C2, C3, HI3, Ha, C＋ and At. It presents the behaviour of the bands and lines intensities as a function of the pressure. Also, it displays the ratios of intensities of N＋2 （391.44 nm）, CN （392.08 nm）, and H （486.13 nm） to that of the N2 （337.13 rim） as function of pressure. The ratios show a slow decreasing behavior as a function of the pressure. Being the CH/N2 ratio more highest and H/N2 ratio the lowest one. The variations of excited species at different pressures may change the subsequent chemical reactions in the gas phase significantly. The present results suggest that the ion-molecule and molecule-molecule reactions in the gas phase are likely to play a dominant role in the present pressures.

关键词： Glow discharge optical emission spectroscopy low pressure discharge titan's atmosphere.

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An overview of resistance to chemotherapy in osteosarcoma and future perspectives

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Cancer Drug Resistance 2022年第3期5卷 762-793页

作者： Dorian Yarih Garcia-Ortega Sara Aileen Cabrera-Nieto Haydee Sarai Caro-Sanchez Marlid Cruz-Ramos Cirugia Oncologica Instituto Nacional de Cancerologia(INCAN)Ciudad de Mexico 14080Mexico posgrado en ciencias Medicas Facultad de Ciencias de la SaludUniversidad AnahuacCiudad de Mexico 52786Mexico departamento de Patologi Instituto Nacional de Cancerologia(INCAN)Ciudad de México 14080Mexico Catedras de Consejo Nacional de Ciencia y Tecnologia(CONACYT) Instituto Nacional de CancerologiaCiudad de Mexico 14080Mexico

Osteosarcoma(OS)is the most common type of bone *** the availability of multimodal treatment with surgery and chemotherapy,the clinical results remain *** main reason for the poor outcomes in patients with OS is the development of resistance to methotrexate,cisplatin,doxorubicin,and *** and cellular mechanisms associated with resistance to chemotherapy include DNA repair and cell-cycle alterations,enhanced drug efflux,increased detoxification,resistance to apoptosis,autophagy,tumor extracellular matrix,and *** versatility of cells to generate chemoresistance has motivated the use of anti-angiogenic therapy based on tyrosine kinase *** approach has shown that other therapies,along with standard chemotherapy,can improve responses to therapy in patients with ***,microRNAs may act as predictors of drug resistance in *** review provides insight into the molecular and cellular mechanisms involved in the development of resistance during the treatment of OS and discusses promising novel therapies(e.g.,afatinib and palbociclib)for overcoming resistance to chemotherapy in OS.

关键词： Osteosarcoma therapy resistance tyrosine kinase inhibitor tumoral extracellular microenvironment cell cycle

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Mitochondrial phylogeography and molecular evolution of the rhodopsin visual pigment in troglobitic populations of Astyanax mexicanus(de Filippi,1853)

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Zoological Research 2023年第4期44卷 761-775页

作者： Marco A.A.Garduño-Sánchez Vladimir de Jesus-Bonilla Silvia Perea Ramses Miranda-Gamboa Andrea Herrera-García Mauricio de la Maza Benignos Claudia Patricia Ornelas-García Colección Nacional de Peces Departamento de ZoologíaInstituto de BiologíaUniversidad Nacional Autónoma de MéxicoCiudad de MéxicoC.P.04510México posgrado en ciencias Biológicas Colección Nacional de PecesDepartamento de ZoologíaInstituto de BiologíaUniversidad Nacional Autónoma de MéxicoCiudad de MéxicoC.P.04510México Licenciatura en ciencias Forenses Facultad de MedicinaUniversidad Nacional Autónoma de MéxicoCiudad UniversitariaCoyoacánMéxico CityC.P.04510México Instituto de Energías Renovables Universidad Nacional Autónoma de MéxicoTemixcoMorelos C.P.62580Mexico facultad de ciencias Biológicas Universidad Autónoma de Nuevo LeónCiudad UniversitariaSan Nicolás de los GarzaNuevo LeónC.P.66450México

Cave-adapted animals provide a unique opportunity to study the evolutionary mechanisms underlying phenotypic,metabolic,behavioral,and genetic evolution in response to cave *** Mexican tetra(Astyanax mexicanus)is considered a unique model system as it shows both surface and cave-dwelling *** date,at least 33 different cave populations have been identified,with phylogenetic studies suggesting an origin from at least two independent surface lineages,thereby providing a unique opportunity to study parallel *** the present study,we carried out the most exhaustive phylogeographic study of *** to date,including cave and surface localities,using two mitochondrial markers(cytochrome b(cyt b)and cytochrome c oxidase subunit I(COI))and nuclear rhodopsin visual pigment(rho).Additionally,we inferred the molecular evolution of rho within the two contrasting environments(cave and surface)and across three geographic regions(Sierra de El Abra,Sierra de Guatemala,and Micos).In total,267 individuals were sequenced for the two mitochondrial fragments and 268 individuals were sequenced for the rho visual pigment from 22 cave and 46 surface *** results based on the mitochondrial data supported the two-lineage hypothesis,except for the Pachón and Chica caves,whose introgression has been largely *** Sierra de El Abra region depicted the largest genetic diversity,followed by the Sierra de Guatemala *** the phylogeographic patterns of rho,we recovered exclusive haplogroups for the Sierra de El Abra(Haplogroup I)and Sierra de Guatemala regions(Haplogroup IV).Moreover,a 544 bp deletion in the rho gene was observed in the Escondido cave population from Sierra de Guatemala,reducing the protein from seven to three intramembrane *** change may produce a loss-of-function(LOF)but requires further *** nonsynonymous(dN)and synonymous(dS)substitution rates(omega valuesω),our results revealed

关键词： Visual pigments Selection Cavefish Vision loss Loss of function

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Optimal diet strategy of a large-bodied psittacine: food resource abundance and nutritional content enable facultative dietary specialization by the Military Macaw

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Avian Research 2019年第4期10卷 469-477页

作者： Sylvia Margarita de la Parra‑Martinez Luis Guillermo Munoz‑lacy Alejandro Salinas‑Melgoza Katherine Renton departamento de ciencias Biologicas Centro Universitario de la CostaUniversidad de GuadalajaraAv.Universidad No.203Delegacion IxtapaC.P.48280 Puerto VallartaJaliscoMexico Comision Nacional Para el Conocimiento y Uso para la Biodiversidad Liga Periferico‑Insurgentes Sur 4903Delegacion Tlalpan14010 Mexico CityMexico facultad de Biologia Universidad Michoacana de San Nicolas de HidalgoCiudad UniversitariaMoreliaMichoacanMexico Estacion de Biologia Chamela Instituto de BiologiaUniversidad Nacional Autonoma de MexicoApartado Postal 21San Patricio‑MelaqueJaliscoMexico

Background:Dietary specialization should arise when there is a relatively high abundance of a particular resource,where animals may select food items to obtain an optimal diet that maximizes energy ***‑bodied psittacines frequently exhibit a narrow dietary niche with specific habitat use,but few studies have determined whether psittacines select food resources,and how this influences habitat ***:We established fruiting phenology transects to evaluate food resource availability for the large‑bodied Military Macaw(Ara militaris)in semi‑deciduous,deciduous,and pine‑oak forest at two sites along the coast of Jalisco,during the dry season when macaws are *** also determined Military Macaw diet by observations of foraging macaws along transect routes,and conducted bromatological analysis of the nutritional content of the most consumed ***:Military Macaws used six plant species as food items during the dry season,and had a narrow dietary niche(Levins’B=0.28),with 56%of foraging macaws consuming the seeds of Hura *** food resources were recorded in pine‑oak forest during the dry season,with food resources and foraging by macaws concentrated in tropical deciduous and semi‑deciduous forest,where *** was the most abundant fruiting tree *** considering the proportional availability of food resources,we determined a broad Hurlbert dietary niche breadth of H=0.67,indicating that Military Macaws consumed food resources according to their ***,the seeds of *** were an important source of protein,carbohydrates,minerals and moisture,and the hard fruitcasing means that these seeds are exclusively available for ***:By concentrating their diet on the most abundant resources,Military Macaws may increase foraging efficiency in the dry *** high nutrient content also means that concentrating the diet on seeds of *** may be an optimal foraging strategy for Military Macaws

关键词： Ara militaris Bromatological analysis Diet composition Food resource selection Fruiting phenology Hura polyandra Psittacidae Tropical dry forest

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Review of natural products with hepatoprotective effects

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World Journal of Gastroenterology 2014年第40期20卷 14787-14804页

作者： Eduardo Madrigal-Santillán Eduardo Madrigal-Bujaidar Isela álvarez-González María Teresa Sumaya-Martínez José Gutiérrez-Salinas Mirandeli Bautista ángel Morales-González Manuel García-Luna y González-Rubio J Leopoldo Aguilar-Faisal José A Morales-González laboratorio Medicina de Conservación Escuela Superior de Medicina Instituto Politécnico Nacional Plan de San Luis y Díaz Mirón Col. Casco de Santo Tomás Del. Miguel Hidalgo México DF 11340 México laboratorio de Genética Escuela Nacional de Ciencias Biológicas Instituto Politécnico Nacional Unidad profesional Adolfo López Mateos Col. Lindavista Delegación Gustavo A. Madero México DF 07738 México Secretaria de Investigación y Estudios de posgrado Universidad Autónoma de Nayarit "Ciu-dad de la Cultura Amado Nervo" Nayarit 28000 México laboratorio de Bioquímica y Medicina Experimental División de Investigación Biomédica Centro Médico Nacional "20 de Noviembre" ISSSTE México DF 03100 México área Académica de Farmacia Instituto de Ciencias de la Salud UAEH Pachuca Hidalgo 42000 México Escuela Superior de Cómputo Instituto Politécnico Nacional Av. Juan de Dios Bátiz s/n esquina Miguel Othón de Mendizabal Unidad Profesional Adolfo López Mateos México DF 07738 Mexico facultad de Odontología UNAM México DF 04510 Mexico

The liver is one of the most important organs in the body,performing a fundamental role in the regulationof diverse processes,among which the metabolism,secretion,storage,and detoxification of endogenous and exogenous substances are *** to these functions,hepatic diseases continue to be among the main threats to public health,and they remain problems throughout the *** enormous advances in modern medicine,there are no completely effective drugs that stimulate hepatic function,that offer complete protection of the organ,or that help to regenerate hepatic ***,it is necessary to identify pharmaceutical alternatives for the treatment of liver diseases,with the aim of these alternatives being more effective and less *** use of some plants and the consumption of different fruits have played basic roles in human health care,and diverse scientific investigations have indicated that,in those plants and fruits so identified,their beneficial effects can be attributed to the presence of chemical compounds that are called *** present review had as its objective the collecting of data based on research conducted into some fruits(grapefruit,cranberries,and grapes)and plants[cactus pear(nopal)and cactus pear fruit,chamomile,silymarin,and spirulina],which are consumed frequently by humans and which have demonstrated hepatoprotective capacity,as well as an analysis of a resin(propolis)and some phytochemicals extracted from fruits,plants,yeasts,and algae,which have been evaluated in different models of hepatotoxicity.

关键词： Hepatoprotection Grapefruit Vaccinium spp Vitis vinifera L Opuntia ficus-indica Spirulina Propolis Glucans Alcoholic liver disease

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