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https://www.readbyqxmd.com/read/29777752/chemical-profile-and-pharmacological-effects-of-the-resin-and-essential-oil-from-bursera-slechtendalii-a-medicinal-copal-tree-of-southern-mexico
#1
Nemesio Villa-Ruano, Yesenia Pacheco-Hernández, Elvia Becerra-Martínez, José Alejo Zarate-Reyes, Ramiro Cruz-Duran
This study reports on the volatile profile and pharmacological activities of the essential oil and resin from Bursera slechtendalii, an aromatic medicinal tree commercialized in southern Mexico. The essential oil contained 25 volatiles including p-cymen-8-ol (25.4-35.7%), n-hexyl hexanoate (6.8-17.6%) and n-octyl hexanoate (7.6-14.8%), whereas the crystallized resin contained 14 volatiles, including n-octyl acetate (29.6-34.2%), limonene (15.8-18.7%) and n-octyl butyrate (12.6-17-6%). The inhalation of vapors from the resin and essential oil caused a significant anxiolytic-like effect (p < ...
May 16, 2018: Fitoterapia
https://www.readbyqxmd.com/read/29765483/mitochondrial-t16189c-polymorphism-is-associated-with-metabolic-syndrome-in-the-mexican-population
#2
Elsa Saldaña-Rivera, Marissa Jaqueline Careaga-Castilla, Giovani Daniel Olvera-Cárdenas, Elvia Pérez-Soto, Virginia Sánchez-Monroy
Genetic factors, such as the mitochondrial DNA (mtDNA) T16189C polymorphism, have been associated with metabolic syndrome (MetS), but this association has not been studied in Mexico to date. The aim of the present study was to determine whether this polymorphism contributes to MetS in the Mexican population. We recruited 100 unrelated volunteer subjects who were divided into 2 groups: with MetS (MetS group) and without MetS (control group). All subjects were genotyped for the mtDNA T16189C polymorphism by polymerase chain reaction and sequencing...
2018: Disease Markers
https://www.readbyqxmd.com/read/29665969/copeptin-plasma-levels-are-associated-with-decline-of-renal-function-in-patients-with-type-2-diabetes-mellitus
#3
Maria De La Luz Villela-Torres, Ana Edith Higareda-Mendoza, Anel Gómez-García, Alfonso Rafael Alvarez-Paredes, Elvia García-López, Peter Stenvikel, Harvest F Gu, Abbul Rashid-Qureshi, Bengt Lindholm, Cleto Alvarez-Aguilar
BACKGROUND: Chronic kidney disease (CKD) is a leading complication of type 2 diabetes mellitus (T2DM) and is considered as a public health problem. Copeptin is a surrogate marker of arginine vasopressin (AVP) system and is proposed as a biomarker of decline renal function. OBJECTIVE: Evaluate whether plasma copeptin levels may be used as a biomarker of decline renal function in patients with T2DM. RESEARCH DESIGN AND METHODS: A total of 480 patients with T2DM and different stages of CKD were included...
April 14, 2018: Archives of Medical Research
https://www.readbyqxmd.com/read/29597254/synthesis-of-controlled-size-silica-nanoparticles-from-sodium-metasilicate-and-the-effect-of-the-addition-of-peg-in-the-size-distribution
#4
Christian Chapa-González, Ana Laura Piñón-Urbina, Perla Elvia García-Casillas
Silica nanoparticles are widely studied in emerging areas of nanomedicine because they are biocompatible, and their surface can be modified to provide functionalization. The size is intrinsically related to the performance of the silica nanoparticles; therefore, it is important to have control over the size. However, the silica nanoparticles obtained from sodium metasilicate are less studied than those obtained from tetraethyl orthosilicate. Moreover, the methods of surface modification involve several steps after the synthesis...
March 28, 2018: Materials
https://www.readbyqxmd.com/read/29579998/-1-h-nmr-based-metabolomic-profiling-for-identification-of-metabolites-in-capsicum-annuum-cv-mirasol-infected-by-beet-mild-curly-top-virus-bmctv
#5
Nemesio Villa-Ruano, Rodolfo Velásquez-Valle, L Gerardo Zepeda-Vallejo, Nury Pérez-Hernández, Manuel Velázquez-Ponce, Victor M Arcos-Adame, Elvia Becerra-Martínez
Beet mild curly top virus (BMCTV) is associated with an outbreak of curly top in chili pepper, tomato and other Solanaceae species, which can cause severe crop losses. The aim of this work was to obtain the1 H NMR metabolomic profiling of both healthy chili peppers (cv. mirasol) and infected chili peppers with BMCTV in order to find chemical markers associated to the infection process. Significant differences were found between the two groups, according to principal component analysis and orthogonal projections to latent structure discriminant analysis...
April 2018: Food Research International
https://www.readbyqxmd.com/read/29467028/diurnal-variation-of-nmda-receptor-expression-in-the-rat-cerebral-cortex-is-associated-with-traumatic-brain-injury-damage
#6
Francisco Estrada-Rojo, Julio Morales-Gomez, Elvia Coballase-Urrutia, Marina Martinez-Vargas, Luz Navarro
OBJECTIVE: Data from our laboratory suggest that recovery from a traumatic brain injury depends on the time of day at which it occurred. In this study, we examined whether traumatic brain injury -induced damage is related to circadian variation in N-methyl-D-aspartate receptor expression in rat cortex. RESULTS: We confirmed that traumatic brain injury recovery depended on the time of day at which the damage occurred. We also found that motor cortex N-methyl-D-aspartate receptor subunit NR1 expression exhibited diurnal variation in both control and traumatic brain injury-subjected rats...
February 21, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29459759/genomics-of-a-pediatric-ovarian-fibrosarcoma-association-with-the-dicer1-syndrome
#7
Jorge Melendez-Zajgla, Gabriela E Mercado-Celis, Javier Gaytan-Cervantes, Amada Torres, Nayeli Belem Gabiño, Martha Zapata-Tarres, Luis Enrique Juarez-Villegas, Pablo Lezama, Vilma Maldonado, Karen Ruiz-Monroy, Elvia Mendoza-Caamal
Ovarian fibrosarcomas are extremely rare tumors with little genomic information available to date. In the present report we present the tumoral exome and transcriptome and the germinal exome of an ovarian fibrosarcoma from a 9-years old child. We found a paucity of mutations (0.77/Mb) and CNV alterations. Of these, the most relevant were a point mutation in the metal-binding site of the microRNA-processing DICER1 enzyme and a frame-shift alteration in the tumor suppressor gene NF1. We validated a germinal truncating mutation in DICER1, which was consistent with a DICER1 Syndrome diagnosis, providing the first example of an ovarian fibrosarcoma as the presenting neoplasia in this syndrome...
February 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29414147/clobenpropit-a-histamine-h-3-receptor-antagonist-inverse-agonist-inhibits-3-h-dopamine-uptake-by-human-neuroblastoma-sh-sy5y-cells-and-rat-brain-synaptosomes
#8
Elvia Mena-Avila, Ricardo Márquez-Gómez, Guillermo Aquino-Miranda, Gustavo Nieto-Alamilla, José-Antonio Arias-Montaño
BACKGROUND: Clobenpropit, a potent antagonist/inverse agonist at the histamine H3 receptor (H3 R), reduced the cytotoxic action of 6-hydroxydopamine (6-OHDA) in neuroblastoma SH-SY5Y cells transfected with the human H3 R. We therefore set out to study whether this effect involved a receptor-independent action on dopamine transport. METHODS: The uptake of [3 H]-dopamine was assayed in SH-SY5Y cells and rat striatal or cerebro-cortical isolated nerve terminals (synaptosomes)...
February 2018: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29382492/proteomics-a-tool-to-develop-novel-diagnostic-methods-and-unravel-molecular-mechanisms-of-pediatric-diseases
#9
REVIEW
Angélica Torres-Arroyo, Arturo Ruiz-Lara, Adriana Castillo-Villanueva, Sara Teresa Méndez-Cruz, Sara Elvia Espinosa-Padilla, Francisco Javier Espinosa-Rosales, Flora Zarate-Mondragón, Roberto Cervantes-Bustamante, Vanessa Bosch-Canto, Iris Vizzuett-López, Juan Carlos Ordaz-Fávila, Jesús Oria-Hernández, Horacio Reyes-Vivas
Proteomics is the study of the expression of changes and post-translational modifications (PTM) of proteins along a metabolic condition either normal or pathological. In the field of health, proteomics allows obtaining valuable data for treatment, diagnosis or pathophysiological mechanisms of different illnesses. To illustrate the aforementioned, we describe two projects currently being performed at the Instituto Nacional de Pediatría: The immuno-proteomic study of cow milk allergy and the Proteomic study of childhood cataract...
May 2017: Boletín Médico del Hospital Infantil de México
https://www.readbyqxmd.com/read/29195936/-1-h-nmr-based-metabolomic-fingerprinting-to-determine-metabolite-levels-in-serrano-peppers-capsicum-annum-l-grown-in-two-different-regions
#10
Elvia Becerra-Martínez, Elideth Florentino-Ramos, Nury Pérez-Hernández, L Gerardo Zepeda-Vallejo, Nemesio Villa-Ruano, Manuel Velázquez-Ponce, Felipe García-Mendoza, Angel E Bañuelos-Hernández
Chili pepper (Capsicum annuum) is the most important and emblematic condiment in Mexican food. Serrano pepper is a variety of C. annuum that is traditionally cultivated in Mexico and commercialized in local markets. The aim of this study was to describe the1 H NMR metabolomic profiling of the aqueous phase of serrano peppers harvested from two distinct regions, in the states of Veracruz and Oaxaca, Mexico. According to the current results, aspartate citrate, lactate, leucine and sucrose were found at higher amount in the serrano peppers from Veracruz...
December 2017: Food Research International
https://www.readbyqxmd.com/read/29187835/coastal-bacterioplankton-metabolism-is-stimulated-stronger-by-anthropogenic-aerosols-than-saharan-dust
#11
Isabel Marín, Sdena Nunes, Elvia D Sánchez-Pérez, Estibalitz Txurruka, Carolina Antequera, Maria M Sala, Cèlia Marrasé, Francesc Peters
In oligotrophic regions, such as the Mediterranean Sea, atmospheric deposition has the potential to stimulate heterotrophic prokaryote growth and production in surface waters, especially during the summer stratification period. Previous studies focused on the role of leaching nutrients from mineral particles of Saharan (S) origin, and were restricted to single locations at given times of the year. In this study, we evaluate the effect of atmospheric particles from diverse sources and with a markedly different chemical composition [S dust and anthropogenic (A) aerosols] on marine planktonic communities from three locations of the northwestern Mediterranean with contrasted anthropogenic footprint...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29177393/-informed-and-empowered-citizens-keys-to-the-full-exercise-of-health-rights
#12
Walter Gil-Quevedo, Elvia Agurto-Távara, Elizabeth Espinoza-Portilla
Currently, there is a Peruvian legal framework that promotes the dissemination of information on the health rights of the population. Institutions have been created, such as the National Superintendence of Health, which are in charge of promoting health rights and supervising health-care providers. Despite many achievements, such as extending comprehensive health insurance coverage, it is necessary to implement strategies for the population to access information and advice in a timely, quick and complete manner...
April 2017: Revista Peruana de Medicina Experimental y Salud Pública
https://www.readbyqxmd.com/read/29095027/the-two-sides-of-superior-mesenteric-artery-syndrome-treatment-conservative-or-surgical-management
#13
Elvia Johanna Osegueda de Rodríguez, Antonio Carlos Hernández-Villegas, Aurora Elizabeth Serralde-Zúñiga, Ana Luz Del Carmen Reyes-Ramírez
INTRODUCTION: Superior mesenteric artery syndrome (SMAS) is a rare condition characterized by vascular compression of the duodenum. There is controversy regarding the optimal treatment. CASE REPORT: In case 1, we describe the case of a 21-year-old woman (body mass index -BMI- 16.9 kg/m2) with high-level obstructive symptoms three months prior, with computed tomography scan (TC) showing a superior mesenteric artery aorta angle (SMAA) of 13º and compression of the third portion of the duodenum (D3), for this reason a nasojejunal tube was placed for enteral feeding...
July 28, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28953124/laser-excisional-treatment-for-vaginal-intraepithelial-neoplasia-to-exclude-invasion-what-is-the-risk-of-complications
#14
Francesco Sopracordevole, Lorenzo Moriconi, Jacopo Di Giuseppe, Lara Alessandrini, Elvia Del Piero, Giorgio Giorda, Monica Buttignol, Giovanni De Piero, Vincenzo Canzonieri, Andrea Ciavattini
OBJECTIVE: We undertook a retrospective analysis of the incidence of complications of carbon dioxide (CO2) laser excision for high-grade vaginal intraepithelial neoplasia (HG-VaIN). MATERIALS AND METHODS: Retrospective large case series on 128 CO2 laser excisions for HG-VaIN in 106 women treated at the Department of Gynecologic Oncology, Oncologic Referral Center, Aviano, Italy. These procedures were performed under local anesthesia with a 20-W continuous laser beam focused to a 0...
October 2017: Journal of Lower Genital Tract Disease
https://www.readbyqxmd.com/read/28872919/a-safety-analysis-of-edaravone-mci-186-during-the-first-six-cycles-24-weeks-of-amyotrophic-lateral-sclerosis-als-therapy-from-the-double-blind-period-in-three-randomized-placebo-controlled-studies
#15
Alexander Kalin, Elvia Medina-Paraiso, Kaoru Ishizaki, Alex Kim, Yannong Zhang, Takanori Saita, Masahiko Wasaki
BACKGROUND: There continues to be a need for new therapies to treat ALS. OBJECTIVE: Provide an overview of safety for edaravone in ALS patients during the first six cycles of treatment. METHODS: Analysis was based on three randomised, placebo-controlled clinical trials. Endpoints included treatment-emergent adverse events (TEAEs), including AEs leading to discontinuation, serious adverse events (SAEs), and deaths. RESULTS: The analysis included a total of 368 patients (184 in the edaravone group and placebo group, respectively)...
October 2017: Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration
https://www.readbyqxmd.com/read/28838971/a-loss-of-function-splice-acceptor-variant-in-igf2-is-protective-for-type-2-diabetes
#16
Josep M Mercader, Rachel G Liao, Avery D Bell, Zachary Dymek, Karol Estrada, Taru Tukiainen, Alicia Huerta-Chagoya, Hortensia Moreno-Macías, Kathleen A Jablonski, Robert L Hanson, Geoffrey A Walford, Ignasi Moran, Ling Chen, Vineeta Agarwala, María Luisa Ordoñez-Sánchez, Rosario Rodríguez-Guillen, Maribel Rodríguez-Torres, Yayoi Segura-Kato, Humberto García-Ortiz, Federico Centeno-Cruz, Francisco Barajas-Olmos, Lizz Caulkins, Sobha Puppala, Pierre Fontanillas, Amy L Williams, Sílvia Bonàs-Guarch, Chris Hartl, Stephan Ripke, Katherine Tooley, Jacqueline Lane, Carlos Zerrweck, Angélica Martínez-Hernández, Emilio J Córdova, Elvia Mendoza-Caamal, Cecilia Contreras-Cubas, María E González-Villalpando, Ivette Cruz-Bautista, Liliana Muñoz-Hernández, Donaji Gómez-Velasco, Ulises Alvirde, Brian E Henderson, Lynne R Wilkens, Loic Le Marchand, Olimpia Arellano-Campos, Laura Riba, Maegan Harden, Stacey Gabriel, Hanna E Abboud, Maria L Cortes, Cristina Revilla-Monsalve, Sergio Islas-Andrade, Xavier Soberon, Joanne E Curran, Christopher P Jenkinson, Ralph A DeFronzo, Donna M Lehman, Craig L Hanis, Graeme I Bell, Michael Boehnke, John Blangero, Ravindranath Duggirala, Richa Saxena, Daniel MacArthur, Jorge Ferrer, Steven A McCarroll, David Torrents, William C Knowler, Leslie J Baier, Noel Burtt, Clicerio González-Villalpando, Christopher A Haiman, Carlos A Aguilar-Salinas, Teresa Tusié-Luna, Jason Flannick, Suzanne B R Jacobs, Lorena Orozco, David Altshuler, Jose C Florez
Type 2 diabetes (T2D) affects more than 415 million people worldwide, and its costs to the health care system continue to rise. To identify common or rare genetic variation with potential therapeutic implications for T2D, we analyzed and replicated genome-wide protein coding variation in a total of 8,227 individuals with T2D and 12,966 individuals without T2D of Latino descent. We identified a novel genetic variant in the IGF2 gene associated with ∼20% reduced risk for T2D. This variant, which has an allele frequency of 17% in the Mexican population but is rare in Europe, prevents splicing between IGF2 exons 1 and 2...
November 2017: Diabetes
https://www.readbyqxmd.com/read/28833480/aromatic-regions-govern-the-recognition-of-nadph-oxidase-inhibitors-as-diapocynin-and-its-analogues
#17
Martha E Macías Pérez, Maricarmen Hernández Rodríguez, Laura C Cabrera Pérez, M Jonathan Fragoso-Vázquez, José Correa-Basurto, Itzia I Padilla-Martínez, David Méndez Luna, Elvia Mera Jiménez, César Flores Sandoval, Feliciano Tamay Cach, Martha C Rosales-Hernández
Oxidative stress is related to the pathogenesis and progress of several human diseases. NADPH oxidase (NOX), and mainly the NOX2 isoform, produces superoxide anions (O2(•)(-) ). To date, it is known that NOX2 can be inhibited by preventing the assembly of its subunits, p47phox and p22phox. In this work, we analyzed the binding to NOX2 of the apocynin dimer, diapocynin (C1), a known NOX2 inhibitor, and of 18 designed compounds (C2-C19) which have chemical relationships to C1, by in silico methods employing a p47phox structure from the Protein Data Bank (PDB code: 1WLP)...
October 2017: Archiv der Pharmazie
https://www.readbyqxmd.com/read/28783911/wind-induced-changes-in-the-dynamics-of-fluorescent-organic-matter-in-the-coastal-nw-mediterranean
#18
Fran L Aparicio, Mar Nieto-Cid, Eva Calvo, Carles Pelejero, Àngel López-Sanz, Josep Pascual, Jordi Salat, Elvia D Sánchez-Pérez, Patricia De La Fuente, Josep M Gasol, Cèlia Marrasé
Marine biogeochemistry dynamics in coastal marine areas is strongly influenced by episodic events such as rain, intense winds, river discharges and anthropogenic activities. We evaluated in this study the importance of these forcing events on modulating seasonal changes in the marine biogeochemistry of the northwestern coast of the Mediterranean Sea, based on data gathered from a fixed coastal sampling station in the area. A 4-year (2011-2014) monthly sampling at four depths (0.5m, 20m, 50m and 80m) was performed to examine the time variability of several oceanographic variables: seawater temperature, salinity, inorganic nutrient concentrations (NO3 - , PO4 3- and SiO2 ), chlorophyll a (Chl a), dissolved organic carbon (DOC) and fluorescent dissolved organic matter (FDOM)...
December 31, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28755902/low-triiodothyronine-is-associated-with-elevation-of-n-terminal-pro-brain-natriuretic-peptide-nt-probnp-and-mortality-in-dialysis-patients
#19
María Del Carmen Prado-Uribe, María-de-Jesús Ventura, Marcela Ávila-Díaz, Carmen J Mora, Antonio Méndez-Durán, Diana Villanueva-Noches, Alejandra Cisneros, Begoña Ilabaca, Alfonso Cueto-Manzano, Fernando García-Contreras, Bengt Lindholm, Elvia García-López, Ramón Paniagua
BACKGROUND: Low thyroid hormone (TH) levels and myocardial damage are common in dialysis patients and are associated with mortality. However, little is known about the role of THs on myocardial damage as has been described in primary thyroid diseases. The aim of this study was to explore the potential relationship between low total triiodothyronine (total T3) and biomarkers of myocardial damage and the effect of their interaction on mortality, to ascertain if cardiovascular damage is the link between low THs and the risk of death in dialysis patients with CKD...
July 26, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28706454/participation-of-cox-1-and-cox-2-in-the-contractile-effect-of-phenylephrine-in-prepubescent-and-old-rats
#20
Gustavo Guevara-Balcazar, Israel Ramirez-Sanchez, Elvia Mera-Jimenez, Ivan Rubio-Gayosso, Maria Eugenia Aguilar-Najera, Maria C Castillo-Hernandez
Vascular reactivity can be influenced by the vascular region, animal age, and pathologies present. Prostaglandins (produced by COX-1 and COX-2) play an important role in the contractile response to phenylephrine in the abdominal aorta of young rats. Although these COXs are found in many tissues, their distribution and role in vascular reactivity are not clear. At a vascular level, they take part in the homeostasis functions involved in many physiological and pathologic processes (e.g., arterial pressure and inflammatory processes)...
July 2017: Korean Journal of Physiology & Pharmacology
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