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https://www.readbyqxmd.com/read/29074979/in-situ-tem-observation-of-alpha-particle-induced-annealing-of-radiation-damage-in-durango-apatite
#1
Weixing Li, Yahui Shen, Yueqing Zhou, Shuai Nan, Chien-Hung Chen, Rodney C Ewing
A major issue in thermochronology and U-Th-Pb dating is the effect of radiation damage, created by α-recoils from α-decay events, on the diffusion of radiogenic elements (e.g., He and Pb) in host mineral. Up until now, thermal events have been considered as the only source of energy for the recovery of radiation-damage. However, irradiation, such as from the α-particle of the α-decay event, can itself induce damage recovery. Quantification of radiation-induced recovery caused by α-particles during α-decay events has not been possible, as the recovery process at the atomic-scale has been difficult to observe...
October 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29053351/cadmium-accumulation-and-main-rhizosphere-characteristics-of-seven-french-marigold-tagetes-patula-l-cultivars
#2
Ruilian Sun, Qianqian Sun, Renqing Wang, Lidong Cao
The study was conducted to determine Cd accumulation and Cd fraction in the rhizosphere soil of seven Tagetes patula cultivars (Little Hero Orange, Durango Yellow, Janie Yellow Bright, Lucifer Yellow, Hero Flame, Hongyun Red, Konghuang Yellow). T. patula cultivars showed strong tolerance and accumulation to Cd. The highest Cd concentration (273.77 mg kg(-1)) in shoots was observed in Little Hero Orange when treated with Cd100. For most cultivars, Cd treatments significantly affected rhizosphere pH values, but had a slight effect on dissolved organic carbon (DOC)...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29034112/lack-of-association-between-cytomegalovirus-infection-and-hypertensive-disorders-in-pregnancy-a-case-control-study-in-durango-mexico
#3
Cosme Alvarado-Esquivel, Ada A Sandoval-Carrillo, Fernando Vazquez-Alaniz, José M Salas-Pacheco, Jesús Hernández-Tinoco, Luis Francisco Sánchez-Anguiano, Elizabeth Irasema Antuna-Salcido
It is not clear whether infection with cytomegalovirus (CMV) is associated with hypertensive disorders in pregnant women. Through a case-control study design, 146 women suffering from hypertensive disorders in pregnancy (cases) and 146 age-matched normotensive pregnant women (controls) were examined for the presence of anti-CMV IgG and IgM antibodies with enzyme-linked immunoassays. IgM seropositive samples were further assayed by enzyme-linked fluorescent assay (ELFA). Anti-CMV IgG antibodies were found in 138 (94...
September 2017: European Journal of Microbiology & Immunology
https://www.readbyqxmd.com/read/28922899/the-current-status-of-the-distribution-range-of-the-western-pine-beetle-dendroctonus-brevicomis-curculionidae-solytinae-in-northern-mexico
#4
O Valerio-Mendoza, F Armendáriz-Toledano, G Cuéllar-Rodríguez, José F Negrón, G Zúñiga
The distribution range of the western pine beetle Dendroctonus brevicomis LeConte (Coleoptera: Curculionidae) is supported only by scattered records in the northern parts of Mexico, suggesting that its populations may be marginal and rare in this region. In this study, we review the geographical distribution of D. brevicomis in northern Mexico and perform a geometric morphometric analysis of seminal rod shape to evaluate its reliability for identifying this species with respect to other members of the Dendroctonus frontalis Zimmermann (Coleoptera: Curculionidae) complex...
September 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28914975/seroepidemiology-of-hepatitis-e-virus-infection-in-pigs-in-durango-state-mexico
#5
Cosme Alvarado-Esquivel, Luis Francisco Sánchez-Anguiano, Jesús Hernández-Tinoco, Ángel Osvaldo Alvarado-Félix
No information about hepatitis E virus (HEV) infection in pigs in the northern Mexican state of Durango exists. We determined the seroprevalence and correlates of anti-HEV IgG antibodies in pigs in Durango, Mexico. Through a cross-sectional study, we studied 427 pigs raised in backyards (n = 328), or slaughtered (n = 99) in Durango. Sera of pigs were analyzed for anti-HEV IgG antibodies using a commercially available enzyme-linked immunoassay. Antibodies to HEV were found in 193 (45.2%) of the 427 pigs studied...
September 15, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28873029/cyp450-genotype-phenotype-concordance-in-mexican-amerindian-indigenous-populations-where-to-from-here-for-global-precision-medicine
#6
Fernando de Andrés, Martha Sosa-Macías, Blanca Patricia Lazalde Ramos, María-Eugenia G Naranjo, Adrián LLerena
Global precision medicine demands characterization of drug metabolism and phenotype variation in diverse populations, including the indigenous societies. A related question is the extent to which CYP450 drug metabolizing enzyme genotype and phenotype data are concordant and whether they can be used interchangeably. These issues are increasingly debated as precision medicine continues to expand as a popular research topic worldwide. We report here the first study in clinically relevant CYP450 drug metabolism phenotypes and genotypes in Mexican Amerindian indigenous subjects...
September 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28820342/expected-years-of-life-lost-through-road-traffic-injuries-in-mexico
#7
Efrén Murillo-Zamora, Oliver Mendoza-Cano, Benjamín Trujillo-Hernández, José Guzmán-Esquivel, Alfredo Medina-González, Miguel Huerta, Ramón Alberto Sánchez-Piña, Agustin Lugo-Radillo
BACKGROUND: Road traffic injuries (RTIs) are a leading cause of premature mortality, mainly in low- and middle-income countries Objective: To estimate the 2014 burden of RTIs in Mexico calculating years of life lost (YLL) and age-standardized YLL rates (ASYLL), and to evaluate sex, age, and region-related differences in premature mortality. METHODS: Mortality data were obtained from the National Institute of Statistics and Geography and 14,637 deaths of individuals 15 years of age and older were analyzed...
2017: Global Health Action
https://www.readbyqxmd.com/read/28811857/concordance-of-toxoplasma-gondii-infection-markers-among-heterosexual-couples
#8
Cosme Alvarado-Esquivel, Sandy Janet Pacheco-Vega, Jesus Hernandez-Tinoco, Luis Omar Berumen-Segovia, Luis Francisco Sanchez-Anguiano, Sergio Estrada-Martinez, Ada Agustina Sandoval-Carrillo, Jose Manuel Salas-Pacheco, Elizabeth Irasema Antuna-Salcido
BACKGROUND: Very little is known about concordance of Toxoplasma gondii (T. gondii) infection markers among couples. Through a cross-sectional study, we sought to determine the correlation of T. gondii infection in a sample of 119 heterosexual couples in Durango State, Mexico. METHODS: Participants were examined for the presence of anti-T. gondii IgG and IgM antibodies using enzyme-linked immunoassays. IgG and IgM seropositive couples were further analyzed for the presence of T...
September 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28730993/seroepidemiology-of-sarcocystis-neurona-and-neospora-hughesi-infections-in-domestic-donkeys-equus-asinus-in-durango-mexico
#9
Cosme Alvarado-Esquivel, Daniel K Howe, Michelle R Yeargan, Domingo Alvarado-Esquivel, José Alfredo Zamarripa-Barboza, Jitender P Dubey
There is currently no information regarding Sarcocystis neurona and Neospora hughesi infections in donkeys in Mexico. Here, we determined the presence of antibodies against S. neurona and N. hughesi in donkeys in the northern Mexican state of Durango. Serum samples of 239 domestic donkeys (Equus asinus) were assayed for S. neurona and N. hughesi antibodies using home-made enzyme-linked immunoassays; six (2.5%) of the 239 donkeys tested seropositive for S. neurona. The seroprevalence of S. neurona infection was comparable among donkeys regardless of their origin, health status, or sex...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28729876/genetic-architecture-of-flooding-tolerance-in-the-dry-bean-middle-american-diversity-panel
#10
Ali Soltani, Samira MafiMoghaddam, Katelynn Walter, Daniel Restrepo-Montoya, Sujan Mamidi, Stephan Schroder, Rian Lee, Phillip E McClean, Juan M Osorno
Flooding is a devastating abiotic stress that endangers crop production in the twenty-first century. Because of the severe susceptibility of common bean (Phaseolus vulgaris L.) to flooding, an understanding of the genetic architecture and physiological responses of this crop will set the stage for further improvement. However, challenging phenotyping methods hinder a large-scale genetic study of flooding tolerance in common bean and other economically important crops. A greenhouse phenotyping protocol was developed to evaluate the flooding conditions at early stages...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28611864/entamoeba-histolytica-infection-in-female-sex-workers-a-matched-case-control-study-in-durango-mexico
#11
Cosme Alvarado-Esquivel, Luis Francisco Sanchez-Anguiano, Jesus Hernandez-Tinoco, Sergio Estrada-Martinez, Alma Rosa Perez-Alamos, Agar Ramos-Nevarez, Sandra Margarita Cerrillo-Soto, Carlos Alberto Guido-Arreola
BACKGROUND: Infection with Entamoeba histolytica (E. histolytica) can be potentially transmitted by sexual contact. The seroepidemiology of E. histolytica in female sex workers has not been studied. The aim of the study was to determine whether E. histolytica is associated with the occupation of female sex work. In addition, the correlates of E. histolytica seroprevalence in female sex workers were also investigated. METHODS: We performed an age- and gender-matched case-control study of 187 female sex workers and 374 women without sex work...
July 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28609890/revision-of-the-funnel-web-spider-genus-i-novalena-i-araneae-agelenidae
#12
Julieta Maya-Morales, María Luisa Jiménez
The Western Hemisphere genus Novalena Chamberlin & Ivie 1942 (Araneae: Agelenidae) is revised. The genus now includes a total of 53 species, of which 40 are new species from USA, Mexico, Guatemala, and Costa Rica: N. ajusco sp. nov. (♀), N. alamo sp. nov. (♂), N. alvarezi sp. nov. (♀), N. atzimbo sp. nov. (♀), N. bosencheve sp. nov. (♂), N. chamberlini sp. nov. (♂ ♀), N. cieneguilla sp. nov. (♀), N. cintalapa sp. nov. (♂ ♀), N. clara sp. nov. (♂ ♀), N. comaltepec sp. nov. (♀), N. creel sp...
May 5, 2017: Zootaxa
https://www.readbyqxmd.com/read/28609884/new-species-of-narberdia-burke-from-m%C3%A3-xico-and-central-america-coleoptera-curculionidae
#13
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/28496551/lack-of-association-between-toxoplasma-gondii-infection-and-diabetes-mellitus-a-matched-case-control-study-in-a-mexican-population
#14
Cosme Alvarado-Esquivel, Nayely Loera-Moncivais, Jesus Hernandez-Tinoco, Luis Francisco Sanchez-Anguiano, Guillermina Hernandez-Madrid, Elizabeth Rabago-Sanchez, Maria Magdalena Centeno-Tinoco, Ada A Sandoval-Carrillo, Jose M Salas-Pacheco, Oscar Vladimir Campos-Moreno, Elizabeth Irasema Antuna-Salcido
BACKGROUND: Very little is known about the association between infection with Toxoplasma gondii (T. gondii) and diabetes mellitus. We perform an age- and gender-matched case-control study to determine the association of T. gondii infection and diabetes mellitus. METHODS: Cases included 156 patients with diabetes mellitus and 156 controls without diabetes mellitus who attended in two public clinics in Durango City, Mexico. Sera of cases and controls were tested for the presence of anti-Toxoplasma IgG and IgM antibodies using commercially available enzyme-linked fluorescence assays (ELFA)...
June 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28464065/genome-wide-association-analysis-for-drought-tolerance-and-associated-traits-in-common-bean
#15
Valerio Hoyos-Villegas, Qijian Song, James D Kelly
A genome-wide association study explored the genetic basis of variation for drought tolerance and related traits in a Middle American diversity panel comprising 96 common bean ( L.) genotypes. The panel was grown under irrigated and rainfed conditions and single nucleotide polymorphism (SNP) data were used to explore the genetic diversity and ancestry of the panel. Varying levels of admixtures and distinctly divergent individuals were observed. Estimations of genome-wide heterozygosity revealed that, on average, greater diversity is present in individuals with Mesoamerica (3...
March 2017: Plant Genome
https://www.readbyqxmd.com/read/28460908/gc-ms-method-to-quantify-bioavailable-phenolic-compounds-and-antioxidant-capacity-determination-of-plasma-after-acute-coffee-consumption-in-human-volunteers
#16
Oscar Javier Lara-Guzmán, Rafael Álvarez-Quintero, Edison Osorio, Mauricio Naranjo-Cano, Katalina Muñoz-Durango
Coffee, a source of chlorogenic acids (CGAs), is recognized for preventing chronic diseases associated with oxidative stress. Therefore, sensitive, selective and easy access methods for the determination of the bioavailability and antioxidant function in vivo are required in clinical studies. The aim of this work was to validate a GC/MS method to quantify caffeic acid (CA) and ferulic acid (FA) and to apply different methodologies to determine the antioxidant capacity of plasma after the acute consumption of 420mg of CGAs provided by 400mL of coffee...
November 2016: Food Research International
https://www.readbyqxmd.com/read/28435388/amphibians-and-reptiles-of-the-state-of-chihuahua-mexico-with-comparisons-with-adjoining-states
#17
Julio A Lemos-Espinal, Geoffrey R Smith, Guillermo A Woolrich-Piña, Alexander Cruz
Chihuahua is Mexico's largest state, and its physiographic complexity affects the distribution of its herpetofauna. We list amphibians and reptiles for the state of Chihuahua, with their conservation status. We also compare this list to those of six adjoining states in the United States and Mexico (New Mexico, Texas, Coahuila, Durango, Sinaloa, and Sonora). A total of 175 species of amphibians and reptiles is found in Chihuahua. Thirty-eight are amphibians, and 137 reptiles. Chihuahuan amphibians and reptiles represent just over 37% of such species from Chihuahua and neighboring states...
2017: ZooKeys
https://www.readbyqxmd.com/read/28420209/association-between-blood-lead-levels-and-delta-aminolevulinic-acid-dehydratase-in-pregnant-women
#18
Osmel La-Llave-León, Edna M Méndez-Hernández, Francisco X Castellanos-Juárez, Eloísa Esquivel-Rodríguez, Fernando Vázquez-Alaniz, Ada Sandoval-Carrillo, Gonzalo García-Vargas, Jaime Duarte-Sustaita, Jorge L Candelas-Rangel, José M Salas-Pacheco
Blood lead levels (BLLs) and delta-aminolevulinic acid dehydratase (ALAD) activity are considered biomarkers of lead exposure and lead toxicity, respectively. The present study was designed to investigate the association between BLLs and ALAD activity in pregnant women from Durango, Mexico. A total of 633 pregnant women aged 13-43 years participated in this study. Blood lead was measured by a graphite furnace atomic absorption spectrometer. ALAD activity was measured spectrophotometrically. Mean blood lead was 2...
April 18, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28365226/rocky-mountain-spotted-fever-in-mexico-past-present-and-future
#19
REVIEW
Gerardo Álvarez-Hernández, Jesús Felipe González Roldán, Néstor Saúl Hernández Milan, R Ryan Lash, Casey Barton Behravesh, Christopher D Paddock
Rocky Mountain spotted fever, a tick-borne zoonosis caused by Rickettsia rickettsii, is among the most lethal of all infectious diseases in the Americas. In Mexico, the disease was first described during the early 1940s by scientists who carefully documented specific environmental determinants responsible for devastating outbreaks in several communities in the states of Sinaloa, Sonora, Durango, and Coahuila. These investigators also described the pivotal roles of domesticated dogs and Rhipicephalus sanguineus sensu lato (brown dog ticks) as drivers of epidemic levels of Rocky Mountain spotted fever...
June 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28264662/lack-of-association-between-toxoplasma-gondii-exposure-and-depression-in-pregnant-women-a-case-control-study
#20
Cosme Alvarado-Esquivel, Ana Liliana Martínez-Martínez, Luis Francisco Sánchez-Anguiano, Jesús Hernández-Tinoco, Juan Manuel Castillo-Orona, Carlos Salas-Martínez, Antonio Sifuentes-Álvarez, Ada Agustina Sandoval-Carrillo, José M Salas-Pacheco, Oliver Liesenfeld, Elizabeth Irasema Antuna-Salcido
BACKGROUND: Very little is known about the link of T. gondii infection and depression. Through an age-, gender-, and month of pregnancy-matched case-control study, we determined the association of T. gondii infection and depression in pregnant women. METHODS: We studied 200 pregnant women with depression and 200 pregnant women without depression attended in a public hospital in Durango City, Mexico. Pregnant women were tested for the presence of anti-Toxoplasma IgG antibodies using an enzyme-linked immunoassay (EIA), and IgG seropositive women were further tested for the presence of IgM using an EIA...
March 6, 2017: BMC Infectious Diseases
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