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Point-of-care ultrasonography in geriatric medicine: usefulness for approaching infectious endocarditis diagnosis

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Journal of Geriatric Cardiology 2022年第12期19卷 1001-1002页

作者： Pablo Solla Patricia Cancelo Eva López Jesús de la Hera César Morís josé gutiérrez Geriatrics Department Geriatrics Clinical Management AreaHospital Monte NarancoOviedoSpain Health Research Institute of Asturias OviedoSpain Cardiology Department Cardiac AreaHospital Universitario Central de AsturiasOviedoSpain

Infective endocarditis has a high morbimortality rate,and delay in diagnosis and treatment is associated with a higher prevalence of *** clinical presentation is often atypical in older adults,and even when the classic symptoms are present,they may overlap with those of other conditions,making management more *** present the case of a nonagenarian in whom cardiac-centered point-of-care ultrasound facilitated real-time decision making and the diagnosis of mitral endocarditis.

关键词： diagnosis endocarditis mortality

Effect of a bacterial inoculum and additive on dry matter in situ degradability of sugarcane silage

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Journal of Integrative Agriculture 2015年第3期14卷 497-502页

作者： josé A Reyes-gutiérrez Oziel D Montaez-Valdez Ramón Rodríguez-Macias Mario Ruíz-López Eduardo Salcedo-Pérez Cándido E Guerra-Medina South University Center University of Guadalajara University Center for Biological and Agricultural Science University of Guadalajara South Coast University Center University of Guadalajara

The objective of this study was to evaluate the effect of adding a bacterial inoculum and a handmade additive to sugarcane silage（SCS） on the in situ digestibility of dry matter（DM）. The treatments were： T1） sugarcane silage（SCS） and T2） sugarcane silage with 1% inoculum and 1% additive（SCS＋）. The bacterial inoculum consisted of 10.0% molasses, 1.0% yogurt, 5.0% chicken manure, 0.5% urea, and 83.0% water, and the additive was formulated with 1.0% urea, 0.1% ammonium sulfate, and 0.25% phosphorus. In situ dry matter digestibility（DMD） was determined using the nylon bag technique with four cows equipped with ruminal fistulas. Cows were fed with ensiled sugarcane supplemented with 1 kg of commercial concentrate. 5 g of ground sample for each sugarcane treatment were weighted in nylon bags and incubated for 4, 8, 12, 24, 48, and 72 h in a completely randomized design with six replicates. The DMD（%） was higher（P〈0.05） for SCS＋ for all incubation times when compared with SCS. There were no differences in ruminal p H between the treatments for all the incubation times. The data suggested that the sugarcane silage with bacterial inoculum and additive could be an alternative for providing forage for ruminants during the season of low growth and quality grass.

关键词： sugarcane silage degradability bacterial cows

Protective effect of some vitamins against the toxic action of ethanol on liver regeneration induced by partial hepatectomy in rats

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World Journal of Gastroenterology 2008年第6期14卷 899-907页

作者： Carlett Ramírez-Farías Eduardo Madrigal-Santillán josé gutiérrez-Salinas Nidia Rodríguez-Sánchez Maricela Martínez-Cruz Ilse Valle-Jones Ingrid Gramlich-Martínez Alejandra Hernández-Ceruelos josé A Morales-González Unidad de Genética de la Nutrición Instituto Nacional de Pediatría México Instituto de Ciencias de la Salud Universidad Autónoma del Estado de Hidalgo México Laboratorio de Bioquímica y Medicina Experimental Unidad de Investigación Biomédica División de Investigación Centro Médico Nacional "20 de Noviembre" ISSSTE México Gatorade Sports Science Institute Mexico City México Escuela de Dietética y Nutrición ISSSTE México University of Ryerson Toronto

AIM: To investigate the effects of vitamins (A, C and E) on liver injury induced by ethanol administration during liver regeneration in rats. METHODS: Male Wistar rats subjected to 70% partial hepatectomy were divided into five groups (groups 1-5). During the experiment, animals of Group 1 drank only water. The other four groups (2-5) drank 30 mL of ethanol/L of water. Group 3 additionally received vitamin A, those of group 4 vitamin C and those of group 5 received vitamin E. Subsequently serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), albumin and bilirubin were measured colorimetrically. Lipid peroxidation (thiobarbituric-acid reactive substances, TBARS) both in plasma and liver was measured, as well as liver mass gain assessment and total DNA. RESULTS: Compared with sham group, serum AST and ALT increased significantly under ethanol treatment (43% and 93%, respectively, with P < 0.05). Vitamin C and vitamin E treatment attenuated the ethanol-induced increases in ALT and AST activity. Ethanol treatment also decreased serum albumin concentration compared to sham group (3.1 ± 0.4 g/dL vs 4.5 ± 0.2 g/dL; P < 0.05). During liver regeneration vitamins C and E significantly ameliorated liver injury for ethanol administration in hepatic lipid peroxidation (4.92 nmol/mg and 4.25 nmol/mg vs 14.78 nmol/mg, respectively, with P < 0.05). In association with hepatic injury, ethanol administration caused a significant increase in both hepatic and plasma lipid peroxidation. Vitamins (C and E) treatment attenuated hepatic and plasma lipid peroxidation. CONCLUSION: Vitamins C and E protect against liver injury and dysfunction, attenuate lipid peroxidation, and thus appear to be significantly more effective than vitamin A against ethanol-mediated toxic effects during liver regeneration.

关键词： Lipid peroxidation Antioxidant vitamins Alcohol-induced liver injury Liver regeneration

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

The Influence of Climate Variability on Holoplanktonic Polychaetes Populations of Ocean Sector of the Colombian Pacific Basin

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Open Journal of Ecology 2021年第4期11卷 317-343页

作者： josé Manuel gutiérrez-Salcedo Adibe Cárdenas-Oliva Néstor H. Campos Marine Fauna of Colombia Biodiversity and Uses Research Group Universidad Nacional de Colombia Caribbean Headquarters Santa Marta Colombia Museo de Historia Natural Marina de Colombia—MHNMC (Makuriwa) Instituto de Investigaciones Marinas y Costeras—INVEMAR Santa Marta Colombia Instituto de Estudios en Ciencias del Mar—CECIMAR. Universidad Nacional de Colombia Caribbean Headquarters Santa Marta Colombia

Studies of holoplanktonic polychaetes in the Tropical Eastern Pacific have focused on their systematics and distribution however, population responses related to climate variability are non-existent. Therefore, the present work described for the first time the influence of the climatic variability 2004-2012 on the holoplanktonic polychaetes populations, as well as their relationship to environmental variables. Species of the Alciopidae, Lopadorrhynchidae and Iospilidae families were identified from 85 samples collected in the Pacific Basin of Colombia, contrasting them with the presence of ENSO, and correlating them with the environmental variables of temperature, salinity and chlorophyll-α concentration. Of the 14 species identified, only Lopadorrhynchus cf. henseni and L. cf. brevis increased their densities under El Niño and correlated positively with temperature. Rhynchonereella cf. petersii correlated negatively with temperature;while R. cf. gracilis and Pelagobia cf. longicirrata were positively correlated with chlorophyll-α concentration and salinity, respectively. Additionally, with the first description of the environmental ranges of the 14 species identified for the Colombian Pacific basin, it was found that the most commons species presented broader environmental ranges. The results from the current research are consistent with previous studies in other regions of the Pacific and latitudes. The responses of the organisms suggest trophic and mobility trends that were not known for tropical holoplanktonic polychaete species.

关键词： Temperature Chlorophyll Oceanic Province Tropical Region El Niño Southern Oscillation—ENOS

Novel TINF2 gene mutation in dyskeratosis congenita with extremely short telomeres:A case report

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World Journal of Clinical Cases 2022年第33期10卷 12440-12446页

作者： Verónica Judith Picos-Cárdenas Saúl Armando Beltrán-Ontiveros joséAlfonso Cruz-Ramos joséAlfredo Contreras-gutiérrez Eliakym Arámbula-Meraz Carla Angulo-Rojo Alma Marlene Guadrón-Llanos Emir Adolfo Leal-León Dora María Cedano-Prieto Juan Pablo Meza-Espinoza Laboratorio de Genética Facultad de MedicinaUniversidad Autónoma de SinaloaCuliacán 80018SinaloaMexico Centro de Investigación y Docencia en Ciencias de la Salud Hospital Civil de CuliacánUniversidad Autónoma de SinaloaCuliacán 80030SinaloaMexico Departamento de Clínicas Médicas Centro Universitario de Ciencias de la SaludUniversidad de GuadalajaraGuadalajara 44340JaliscoMexico Facultad de Medicina Universidad Autónoma de SinaloaCuliacán 80018SinaloaMexico Laboratorio de Genética y Biología Molecular Facultad de Ciencias Químico-BiológicasUniversidad Autónoma de SinaloaCuliacán 80010SinaloaMexico Laboratorio de Neurociencias Facultad de MedicinaUniversidad Autónoma de SinaloaCuliacán 80018SinaloaMexico Laboratorio de Diabetes y Comorbilidades Facultad de MedicinaUniversidad Autónoma de SinaloaCuliacán 80018SinaloaMexico Facultad de Medicina Universidad Autónoma de TamaulipasMatamoros 87349TamaulipasMexico

BACKGROUND Dyskeratosis congenita is a rare disease characterized by bone marrow failure and a clinical triad of oral leukoplakia,nail dystrophy,and abnormal skin *** genetics of dyskeratosis congenita include mutations in genes involved in telomere maintenance,including *** SUMMARY Here,we report a female patient who presented thrombocytopenia,anemia,reticulate hyperpigmentation,dystrophy in fingernails and toenails,and leukoplakia on the tongue.A histopathological study of the skin showed dyskeratocytes;however,a bone marrow biopsy revealed normal cell *** patient was diagnosed with dyskeratosis congenita,but her family history did not reveal significant ***-exome sequencing showed a novel heterozygous punctual mutation in exon 6 from the TINF2 gene,namely,NM_001099274.1:-c.854delp.(Val285-Alafs*32).An analysis of telomere length showed short telomeres relative to the patient’s *** The disease in this patient was caused by a germline novel mutation of TINF2 in one of her parents.

关键词： Dyskeratosis congenita TINF2 Germline mutation Novel mutation Short telomeres Case report

A Transactive Energy Model for Smart Metering Systems Using Blockchain

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CSEE Journal of Power and Energy Systems 2021年第5期7卷 943-953页

作者： Juan C.Olivares-Rojas Enrique Reyes-Archundia jose A.gutierrez-Gnecchi Ismael Molina-Moreno Jaime Cerda-Jacobo Arturo Mendez-Patino National Technological Institute of Mexico/Technological Institute of Morelia-Division of Graduate Studies and Research MoreliaMichoacan 58120Mexico. School of Electrical Engineering Michoacan University of San Nicolas de HidalgoMorelia 58030.Mexico

The lowering cost of electricity generation technologies by renewable means has caused the role of end-users to change from being a simple consumer to a producer of their *** new role has been called a prosumer and has contributed to modifying electricity markets,by allowing prosumers to merchandize the energy surplus to electricity companies and other *** fundamental key to any economic transaction is trust between the ***,new technologies,such as blockchain,are transforming transaction security,and allowing decentralization of the smart power *** study presents the development of a transactional model of electrical energy using the infrastructure of smart metering and blockchain systems to allow the commercialization of electrical energy by *** results show that for the Mexican electricity market,they can he good alternatives hy reducing subsidies and being more profitable than current rates.

关键词： Data visualization fault diagnosis IoT network photovoltaic system wireless remote monitoring

Hydrogeochemical and isotopic assessment of the origin of NO_(3)^(−)and N-NH_(3)contents in the aquifer located in a closed lacustrine volcano-sedimentary basin in the metropolitan area of Mexico City

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Acta Geochimica 2024年第4期43卷 719-736页

作者： jose Ivan Morales-Arredondo Maria Aurora Armienta Hernandez Joel Edmundo Ortega-gutierrez Elisa Cuellar Ramirez Natural Resources Department Institute of GeophysicsNational Autonomous University of MexicoCiudad Universitaria No.3000Col.Copilco UniversidadCoyoacán Delegation04360 MexicoCDMXMexico Instituto Politecnico Nacional ***án 55La Laguna Ticoman07340 MexicoCDMXMexico Benemérita Universidad Autónoma de Puebla Ciudad Universitaria Col.San ManuelPueblaPueMexico

To explain the presence and spatial distribution of NO_(3)^(−)and N-NH_(3)in the Aquifer of the Metropolitan Area of Mexico City(AMAMC),a hydrogeochemical and isotopic analysis using^(13)C DIC(as well as the stable isotopes^(18)O and^(2)H)in groundwater was *** aquifer is located in an old closed lacustrine volcano-sedimentary basin;some wells hosted in the semi-confined zone contain high N-NH_(3)concentrations,while others present NO_(3)^(−)contents in the recharge zones(hosted in an oxidizing environment).In this study,a change in the isotopic signature(primarily in^(18)O and^(2)H)was observed from the recharge zones to the basin center in some of the wells with high NO_(3)^(−)concentrations,this behavior can be attributed to evaporation during the incorporation of recently infiltrated *** addition,the results for^(13)C(along with ^(2) H)in wells with the highest N-NH_(3)concentrations exhibited an atypically broad range of *** indicated the occurrence of hydrogeochemical and/or biochemical processes in the aquifer(in an oxidizing or reducing environment),such as organic degradation,bacterial decomposition(primarily in the ancient Lake Texcoco and which acts as a natural sink for carbon,nitrogen,sulfur,and phosphorus),besides rock weathering and dissolution,which may be responsible for a very marked isotopic modification of the^(13)C(and,to a lesser extent,2 H).Methanotrophic bacterial activity and methanogenic activity may be related to N-NH_(3)removal processes by oxidation and residual water incorporation respectively,whereas the increase in the NO_(3)^(−)content in some wells is due to the recent contribution of poor-quality water due to contamination.

关键词： 18 O and^(13)C isotopes Iron Hydrogeochemical processes Nitrate Nitrogen species

Presynaptic endoplasmic reticulum architecture and hereditary spastic paraplegia

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Neural Regeneration Research 2024年第3期19卷 485-486页

作者： Juan joséPérez-Moreno Instituto de Biomedicina de Sevilla(IBiS) Hospital Universitario Virgen Del Rocío/CSIC/Universidad de Sevillaand Departamento de Biología CelularFacultad de BiologíaUniversidad de SevillaSevilleSpain

Hereditary spastic paraplegia(HSP)is a clinically and genetically heterogeneous neurodegenerative disorder,characterized primarily by progressive spasticity and weakness in the lower *** ients can also experience peripheral neuropathy,cognitive impairment,and other neurological *** date,more than 80 genes have been implicated in HSP,encompassing various cellular components,although mutations in genes encoding endoplasmic reticulum(ER)-shaping proteins are the most prevalent(Parodi et al.,2017).ER-shaping proteins are generally known for regulating the tubulation and curvation of the ER,but most of them show additional functions,including fusion of ER tubules,microtubule-severing,ER autophagy,lipid droplet synthesis,contact sites with other organelles(Öztürk et al.,2020).This highlights the complexity of studying the role of these proteins and the link between ER function and HSP.

关键词： reticulum endoplasmic