keyword
MENU ▼
Read by QxMD icon Read
search

Veracruz

keyword
https://www.readbyqxmd.com/read/28893428/correlation-between-preoperative-serum-alpha-fetoprotein-levels-and-survival-with-respect-to-the-surgical-treatment-of-hepatocellular-carcinoma-at-a-tertiary-care-hospital-in-veracruz-mexico
#1
G Martínez-Mier, S Esquivel-Torres, A Nava-Lacorte, F A Lajud-Barquín, S Zilli-Hernández, L M Vázquez-Ramírez
INTRODUCTION: Preoperative serum alpha-fetoprotein levels can have predictive value for hepatocellular carcinoma survival. AIM: Our aim was to analyze the correlation between preoperative serum alpha-fetoprotein levels and survival, following the surgical treatment of hepatocellular carcinoma. METHODS: Nineteen patients were prospectively followed (07/2005-01/2016). An ROC curve was created to determine the sensitivity and specificity of alpha-fetoprotein in relation to survival (Kaplan-Meier)...
September 8, 2017: Revista de Gastroenterología de México
https://www.readbyqxmd.com/read/28887580/removal-of-two-high-molecular-weight-pahs-from-soils-with-different-water-content
#2
Lilia Corona, Luc Dendooven, Anaí Chicken, Omar Hernández, Rosario Iturbe
Polycyclic aromatic hydrocarbons (PAHs) such as benz[a]anthracene (BA) and dibenz[a,h]anthracene (DBA), which are considered toxic, are frequently found in contaminated soils in Mexico. A laboratory-scale study monitored the degradation of the mixture of these two PAHs in three soils from different Mexican states (Tabasco, Morelos and Veracruz), each with different organic matter content, particle size distribution and incubated under different water content conditions. The hydrocarbons were extracted using microwave digestion and quantified by GC/MS...
September 8, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28881955/calling-behavior-copulation-time-and-reproductive-compatibility-of-corn-strain-fall-armyworm-lepidoptera-noctuidae-from-populations-in-mexico
#3
Samuel Cruz-Esteban, Julio C Rojas, Edi A Malo
The calling behavior, mating time, and the reproductive compatibility of virgin adults of fall armyworms, Spodoptera frugiperda (J. E. Smith), were studied in this work. Larvae were collected on maize (Zea mays L.) from six states located on the Pacific coast (Chiapas, Michoacán, and Sinaloa), on the Gulf of Mexico (Veracruz and Yucatan), and in central Mexico (Morelos). Before the experiments, insects were reared under laboratory conditions for one generation. We recorded the age at which females called for the first time, the onset time of calling, the duration of calling, the onset time of copulation, and the duration of copulation...
August 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28881485/indices-of-anti-dengue-immunoglobulin-g-subclasses-in-adult-mexican-patients-with-febrile-and-hemorrhagic-dengue-in-the-acute-phase
#4
Araceli Posadas-Mondragón, José Leopoldo Aguilar-Faisal, Adolfo Chávez-Negrete, Edith Guillén-Salomón, Verónica Alcántara-Farfán, Lucero Luna-Rojas, Amanda Marineth Ávila-Trejo, Judith Del Carmen Pacheco-Yépez
Heterologous secondary infections are at increased risk of developing dengue hemorrhagic fever (DHF) due to antibody-dependent enhancement (ADE). The immunoglobulin G (IgG) subclasses can fix and activate complement and bind to Fcɣ receptors. These factors may also play an important role in the development of ADE and thus in the pathogenesis of DHF. The aim of this study was to analyze the indices of anti-dengue IgG subclasses in adult patients with febrile and hemorrhagic dengue in the acute phase. In 2013, we recruited129 patients with dengue fever (DF) and 57 with DHF in Veracruz, Mexico...
September 7, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28792536/diversity-and-composition-of-herbaceous-angiosperms-along-gradients-of-elevation-and-forest-use-intensity
#5
Jorge Antonio Gómez-Díaz, Thorsten Krömer, Holger Kreft, Gerhard Gerold, César Isidro Carvajal-Hernández, Felix Heitkamp
Terrestrial herbs are important elements of tropical forests; however, there is a lack of research on their diversity patterns and how they respond to different intensities of forest-use. The aim of this study was to analyze the diversity of herbaceous angiosperms along gradients of elevation (50 m to 3500 m) and forest-use intensity on the eastern slopes of the Cofre de Perote, Veracruz, Mexico. We recorded the occurrence of all herbaceous angiosperm species within 120 plots of 20 m x 20 m each. The plots were located at eight study locations separated by ~500 m in elevation and within three different habitats that differ in forest-use intensity: old-growth, degraded, and secondary forest...
2017: PloS One
https://www.readbyqxmd.com/read/28768523/genetic-signature-analysis-of-perkinsus-marinus-in-mexico-suggests-possible-translocation-from-the-atlantic-ocean-to-the-pacific-coast-of-mexico
#6
Juan Pablo Ek-Huchim, Ma Leopoldina Aguirre-Macedo, Monica Améndola-Pimenta, Victor Manuel Vidal-Martínez, Juan Antonio Pérez-Vega, Raúl Simá-Alvarez, Isabel Jiménez-García, Roberto Zamora-Bustillos, Rossanna Rodríguez-Canul
BACKGROUND: The protozoan Perkinsus marinus (Mackin, Owen & Collier) Levine, 1978 causes perkinsosis in the American oyster Crassostrea virginica Gmelin, 1791. This pathogen is present in cultured C. virginica from the Gulf of Mexico and has been reported recently in Saccostrea palmula (Carpenter, 1857), Crassostrea corteziensis (Hertlein, 1951) and Crassostrea gigas (Thunberg, 1793) from the Mexican Pacific coast. Transportation of fresh oysters for human consumption and repopulation could be implicated in the transmission and dissemination of this parasite across the Mexican Pacific coast...
August 2, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28763085/-dr-ra%C3%A3%C2%BAl-gonz%C3%A3-lez-enr%C3%A3-quez-and-the-establishment-of-the-latin-american-psychiatric-association
#7
César Campos-Farfán
At the first World Psychiatry Congress (Paris, 1950), the Mexican doctor Raúl González Enríquez (1906-1952), at his own proposal and motion, created the Latin American Psychiatric Association (APAL), and the next year, between December 8th and 11th, 1951, with two branch offices already established in Mexico City and Jalapa, Veracruz, held the first APAL Congress, attended by delegates from 14 countries. That first Congress and the efforts of the founder have been maliciously dismissed in the annals of Hispanic American psychiatric history; thus, it is necessary to account for the events that passed, with the purpose of reclaiming the commendable work of such a distinguished, internationally renown psychiatrist...
May 2017: Gaceta Médica de México
https://www.readbyqxmd.com/read/28750333/mexican-consumers-at-the-point-of-meat-purchase-beef-choice
#8
T M Ngapo, D Braña Varela, M S Rubio Lozano
Within-consumer preference replication achieved through systematic image manipulation was used in consumer surveys in four cities across Mexico (Mexico City, n=195; Guadalajara, n=100; Hermosillo, n=132; Veracruz, n=61) to study beef preferences. Images of beef steaks controlled for lean and fat colour, fat cover and marbling were presented to consumers to determine the characteristics used in beef choice and the levels of preference of these characteristics. The most important choice criteria were fat cover (62% preferring little fat cover) and marbling (59% preferring non-marbled)...
July 18, 2017: Meat Science
https://www.readbyqxmd.com/read/28738511/litter-thickness-but-not-root-biomass-explains-the-average-and-spatial-structure-of-soil-hydraulic-conductivity-in-secondary-forests-and-coffee-agroecosystems-in-veracruz-mexico
#9
B E Marín-Castro, S Negrete-Yankelevich, D Geissert
Secondary forests and coffee agroecosystems are considered good alternatives for conservation of a high capacity for water filtration in the soil where tropical montane cloud forests (TMCF) once grew; however, it is not clear which characteristics of the vegetation modulate the field saturated hydraulic conductivity of the soil (Kfs) and whether these characteristics persist in such derived systems. Here, we explore how changes in vegetation between secondary forests and coffee agroecosystems have consequences for the average value and spatial variation of litter thickness and root biomass, and whether these differences can explain the Kfs and its spatial distribution...
December 31, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28630868/serum-dried-samples-to-detect-dengue-antibodies-a-field-study
#10
Angelica Maldonado-Rodríguez, Othon Rojas-Montes, Guillermo Vazquez-Rosales, Adolfo Chavez-Negrete, Magdalena Rojas-Uribe, Araceli Posadas-Mondragon, Leopoldo Aguilar-Faisal, Ana Maria Cevallos, Beatriz Xoconostle-Cazares, Rosalia Lira
BACKGROUND: Dried blood and serum samples are useful resources for detecting antiviral antibodies. The conditions for elution of the sample need to be optimized for each disease. Dengue is a widespread disease in Mexico which requires continuous surveillance. In this study, we standardized and validated a protocol for the specific detection of dengue antibodies from dried serum spots (DSSs). METHODS: Paired serum and DSS samples from 66 suspected cases of dengue were collected in a clinic in Veracruz, Mexico...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28610195/three-new-species-of-i-pergalumna-i-acari-oribatida-galumnidae-from-the-tropical-rainforest-of-veracruz-mexico
#11
José G Palacios-Vargas, Fernando Villagomez
Three new species of oribatid mites of the genus Pergalumna from a tropical rain forest in Veracruz, Mexico are described. Pergalumna hypergranulosa sp. nov. differs from Pergalumna granulatus Balogh & Mahunka, 1967 by unilaterally barbulated bothridial setae, elongated notogastric porose areas, and also a more profuse granulation of the cerotegument. Pergalumna obsidiana sp. nov. differs from P. granulatus by the unilateral barbulation of bothridial setae and the presence of protuberances on the genital plates; from Pergalumna paralongisetosa Ermilov & Kalúz, 2012 by a diverging cerotegumental granulation on the notogaster...
March 9, 2017: Zootaxa
https://www.readbyqxmd.com/read/28610098/new-state-records-and-updated-checklist-of-aphodiini-and-eupariini%C3%A2-coleoptera-scarabaeidae-aphodiinae-from-mexico
#12
Pablo Minor
Thirty one new state records of species of Aphodiinae (Coleoptera: Scarabaeidae) from Mexico are presented, 24 species belong to Aphodiini and seven species to Eupariini into the genera Agrilinellus, Alloblackburneus, Aphotaenius, Ataenius, Blackburneus, Cephalocyclus, Coelotrachelus, Euparia, Euparixia, Geomyphilus, Gonaphodiellus, Gonaphodiopsis, Haroldiellus, Liothorax, Nialaphodius, Odontolytes, Oscarinus, Pharaphodius, and Planolinellus. New records are from the states of Aguascalientes, Baja California, Baja California Sur, Campeche, Colima, Chiapas, Estado de México, Guerrero, Hidalgo, Jalisco, Michoacán, Morelos, Nayarit, Puebla, Sonora, Tabasco, Tamaulipas, Tlaxcala, Veracruz, Zacatecas, and Distrito Federal...
March 22, 2017: Zootaxa
https://www.readbyqxmd.com/read/28609907/morphology-variation-of-lutzomyia-cruciata-eggs-diptera-psychodidae-phlebotominae-in-southern-mexico
#13
Ana Celia Montes DE Oca-Aguilar, Oscar Mikery-Pacheco, Alfredo Castillo, Eduardo A Rebollar-Téllez, Peter M Piermarini, Sergio Ibáñez-Bernal
The sand fly Lutzomyia cruciata has been associated with the transmission of Leishmania mexicana to humans in Mexico. This species has a wide distribution in Mexico occupying different microhabitats and environments. In this work comparisons of the egg exochorion of Lu. cruciata from different physiographic areas are presented. Study sites are from different states of southern Mexico. Exochorion analysis was carried out using scanning electron microscopy (SEM). Results show differences in the exochorionic pattern among samples from Veracruz (AVER), Yucatán (HOYU) and Chiapas (TACH)...
May 2, 2017: Zootaxa
https://www.readbyqxmd.com/read/28609884/new-species-of-narberdia-burke-from-m%C3%A3-xico-and-central-america-coleoptera-curculionidae
#14
Macotulio Soto-Hernández
Four new species of the previously monotypic genus Narberdia Burke are described. All of them are intimately associated with plants of the genus Bernardia (Euphorbiaceae). Narberdia cervantae Soto-Hernández, new species (México, Jalisco on Bernardia spongiosa McVaugh), N. sarukhani Soto-Hernández, new species (México, Veracruz and Costa Rica on B. mexicana (Hook. & Arn.) Müll. Arg. and B. nicaraguensis Standl. & L.O. Williams), N. dugesi Soto-Hernández (México, Querétaro and Michoacán on B. mexicana and B...
May 8, 2017: Zootaxa
https://www.readbyqxmd.com/read/28468861/detection-of-emerging-vaccine-related-polioviruses-by-deep-sequencing
#15
Malaya K Sahoo, Marisa Holubar, ChunHong Huang, Alisha Mohamed-Hadley, Yuanyuan Liu, Jesse J Waggoner, Stephanie B Troy, Lourdes Garcia-Garcia, Leticia Ferreyra-Reyes, Yvonne Maldonado, Benjamin A Pinsky
Oral poliovirus vaccine can mutate to regain neurovirulence. To date, evaluation of these mutations has been performed primarily on culture-enriched isolates by using conventional Sanger sequencing. We therefore developed a culture-independent, deep-sequencing method targeting the 5' untranslated region (UTR) and P1 genomic region to characterize vaccine-related poliovirus variants. Error analysis of the deep-sequencing method demonstrated reliable detection of poliovirus mutations at levels of <1%, depending on read depth...
July 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28463567/phylogeny-and-polycyclic-aromatic-hydrocarbons-degradation-potential-of-bacteria-isolated-from-crude-oil-contaminated-site
#16
David Tirado-Torres, Otilio Acevedo-Sandoval, Blanca R Rodríguez-Pastrana, Martha Gayosso-Canales
This study employed the use of 16S rRNA gene sequence analysis to identify three of four native bacterial strains isolated from crude oil-contaminated site in Poza Rica, Veracruz, Mexico. The identified bacteria were Ochrobactrum intermedium, Pandoraea pnomenusa and Ochrobactrum sp., but SA2-09 strain was not identified. The ability of the isolates to degrade polycyclic aromatic hydrocarbons (PAHs) was evaluated at 31.61 and 54.52 mg/kg PAHs in soil, when used as crude oil in soil microcosm during 80 days of incubation at 30°C...
July 29, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/28434667/sedimentary-heavy-metal-loid-contamination-in-the-veracruz-shelf-gulf-of-mexico-a-baseline-survey-from-a-rapidly-developing-tropical-coast
#17
Omar Celis-Hernandez, Leticia Rosales-Hoz, Andrew B Cundy, Arturo Carranza-Edwards
This study examines sediment texture, geochemistry and sediment accumulation in cores from four sites in the Veracruz shelf area of the Gulf of Mexico, to assess the inputs of heavy metal(loid)s (and their potential biological impacts) in this carbonate-dominated shelf system, and to examine the rate of sedimentation near to the mouths of the La Antigua and Jamapa Rivers. The use of different pollution indices showed enrichment with Pb in all cores studied, although based on sediment quality guidelines As was the only element that has potential to occasionally cause damage to the benthic organisms present in the area...
April 20, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28423109/effects-of-climatic-and-social-factors-on-dengue-incidence-in-mexican-municipalities-in-the-state-of-veracruz
#18
Grea Litai Moreno-Banda, Horacio Riojas-Rodríguez, Magali Hurtado-Díaz, Rogelio Danis-Lozano, Stephen Joel Rothenberg
Objective: To assess links between the social variables and longer-term El Niño-Southern Oscillation (ENSO) related weather conditions as they relate to the week-to-week changes in dengue incidence at a regional level. Materials and methods: We collected data from 10 municipalities of the Olmeca region in México, over a 10 year period (January 1995 to December 2005). Negative binomial models with distributed lags were adjusted to look for associations between changes in the weekly incidence rate of dengue fever and climate variability...
January 2017: Salud Pública de México
https://www.readbyqxmd.com/read/28420310/helminth-fauna-associated-with-three-neotropical-bat-species-chiroptera-mormoopidae-in-veracruz-m%C3%A3-xico
#19
Emilio Clarke-Crespo, Gerardo Pérez-Ponce de León, Salvador Montiel-Ortega, Miguel Rubio-Godoy
Bats are recognized as potential hosts of pathogens exploiting the food chain to reach them as definitive hosts. However, very little is known about their endoparasites, especially for Neotropical bats. In this study, we assessed the helminth fauna associated with 3 insectivorous bat species roosting in the same single hot cave in central Veracruz, México: Mormoops megalophylla, Pteronotus davyi, and Pteronotus personatus. During a period of 1 yr (April 2007-2008), 135 mormoopid bats in total were collected and examined for helminths...
August 2017: Journal of Parasitology
https://www.readbyqxmd.com/read/28355391/nesting-of-morelet-s-crocodile-crocodylus-moreletii-dumeril-and-bibron-in-los-tuxtlas-mexico
#20
A Villegas, G D Mendoza, J L Arcos-García, V H Reynoso
We evaluated the nesting by Crocodylus moreletii in Lago de Catemaco, Veracruz, southeastern, Mexico. During the nesting and hatching seasons, we searched for nests along the northern margins of the lake and small associated streams. We investigated egg mortality by weekly monitoring each of the nests found, recording sign of predation (tracks and holes dug into the nest) and the effect of water level fluctuations. We not found differences to nest between inland or flooded zones. However, we found that egg size varied among nests...
March 16, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
keyword
keyword
44690
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"