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https://www.readbyqxmd.com/read/28714671/a-facile-method-for-the-preparation-of-covalent-triazine-framework-coated-monoliths-as-catalyst-support-applications-in-c1-catalysis
#1
Anastasiya V Bavykina, Alma Itzel Olivos Suarez, Dmitrii Osadchii, Rahul Valecha, Robert Franz, Michiel Makkee, Freek Kapteijn, Jorge Gascon
A quasi Chemical Vapour Deposition method for the manufacturing of well-defined Covalent Triazine Framework (CTF) coatings on cordierite monoliths is reported. The resulting supported porous organic polymer is an excellent support for the immobilisation of two different homogeneous catalysts: 1) an IrIIICp*-based catalyst for the hydrogen production from formic acid, and 2) a PtII-based for the direct activation of methane via Periana chemistry. The immobilised catalysts display a much higher activity in comparison with the unsupported CTF operated in slurry because of improved mass transport...
July 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28671057/polyamine-transport-and-synthesis-in-trichomonas-vaginalis-potential-therapeutic-targets
#2
María Elizbeth Alvarez-Sánchez, José Luis Villalpando, Laura Itzel Quintas-Granados, Rossana Arroyo
Polyamines are essential for many biological processes in all organisms. Here we show a current landscape of studies and strategies implemented for the study of polyamine metabolism, as well as molecular aspects that implicate the role of key enzymes, transport proteins, inhibitors, and the study of novel molecules as potential therapeutic targets. This review focused on the synthesis, interconversion and function of these molecules in Trichomonas vaginalis, a common sexually transmitted parasite of humans.
July 3, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28666999/pvhl-suppresses-akt-%C3%AE-catenin-mediated-cell-proliferation-by-inhibiting-14-3-3%C3%AE-%C3%A2-expression
#3
Azucena Castañeda, Carolina Serrano, José Antonio Hernández-Trejo, Itzel Zenidel Gutiérrez-Martínez, Wilber Montejo-López, Mauricio Gómez-Suárez, Marcela Hernández-Ruiz, Abigail Betanzos, Aurora Candelario-Martínez, Hector Romo-Parra, José Antonio Arias-Montaño, Michael Schnoor, Marco Antonio Meraz Ríos, Maria Eugenia Gutierrez-Castillo, Irma Alicia Martínez-Dávila, Nicolás Villegas-Sepúlveda, Daniel Martinez-Fong, Porfirio Nava
The mechanisms controlling degradation of cytosolic β-catenin are important for regulating β-catenin co-transcriptional activity. Loss of pVHL has been shown to stabilize β-catenin, increasing β-catenin transactivation and β-catenin mediated cell proliferation. However, the role of PI3K/Akt in the regulation of β-catenin signaling downstream of pVHL has been never addressed. Here we report that hyperactivation of PI3K/Akt in cells lacking pVHL contributes to the stabilization and nuclear accumulation of active β-catenin...
June 30, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28644715/biological-responses-of-the-american-coot-fulica-americana-in-wetlands-with-contrasting-environmental-conditions-basin-of-m%C3%A3-xico
#4
María Eugenia López-Islas, Itzel Ibarra-Meza, Esperanza Ortiz-Ordóñez, Liliana Favari, J Elías Sedeño-Díaz, Eugenia López-López
Wetland ecosystems are subject to severe impacts (physical and chemical) and to the input of various xenobiotics that provoke toxicological consequences. Waterbirds are potential sentinel species of these environments. To analyze how habitat conditions affect the health of Fulica americana, early-warning biomarkers, histopathology, somatic indices, and water quality were examined in two wetlands of the Basin of Mexico: Xochimilco, an urban wetland highly eutrophic with a mixture of pollutants, and Tecocomulco (the reference site), a rural wetland with hunting migratory birds in winter, and with some agricultural contaminants...
2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28622146/relationship-between-various-maternal-conditions-and-lactic-acid-dehydrogenase-activity-in-umbilical-cord-blood-at-birth
#5
Evangelos Patavoukas, Josefina Åberg-Liesaho, Cecilia Pegelow Halvorsen, Birger Winbladh, Eva Wiberg-Itzel
BACKGROUND: Lactic acid dehydrogenase (LDH) is a valuable marker for some of the most important diseases in newborns and the plasma LDH activity in newborns correlates well with conditions such as asphyxia. If LDH should be considered as a useful tool also in obstetric care, key factors associated with maternal health before and during pregnancy which could affect umbilical cord LDH activity need to be known. The aims of this study were to explore relationships between selected maternal conditions and arterial lactic acid dehydrogenase activity (aLDH) in umbilical cord blood at delivery...
June 15, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28605770/improving-biocuration-of-micrornas-in-diseases-a-case-study-in-idiopathic-pulmonary-fibrosis
#6
Yalbi Itzel Balderas-Martínez, Fabio Rinaldi, Gabriela Contreras, Hilda Solano-Lira, Mishael Sánchez-Pérez, Julio Collado-Vides, Moisés Selman, Annie Pardo
http://odin.ccg.unam.mx/ODIN/bc2015-miRNA/.
January 1, 2017: Database: the Journal of Biological Databases and Curation
https://www.readbyqxmd.com/read/28591501/-implementation-of-a-clinical-prediction-tool-in-renal-transplant-recipients
#7
Gustavo Martínez-Mier, Sandro Fabricio Ávila-Pardo, Marco Tulio Méndez-López, Luis Filadelfo Budar-Fernández, Ernesto Soto-Miranda, Paloma Itzel Romero-de Lara, Felipe González-Velázquez, Francisco Antonio Lajud-Barquín, Stefan Zilli-Hernández
BACKGROUND: Kasiske developed a tool for predicting the risk of 5-year graft loss. We analyzed our results using this model. METHODS: 109 deceased donor kidney transplants were included. 5-year probability of graft survival was calculated during transplantation, seven days after transplantation and 1-year after transplantation. Z-test and ROC curves were used for proportion differences and discrimination ability. RESULTS: Mean age of donor and recipient was 33...
July 2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28587493/a-randomized-controlled-trail-of-a-new-treatment-for-labor-dystocia
#8
Eva Wiberg-Itzel, Susan Wray, Helena Åkerud
OBJECTIVE: Labor dystocia is an intransigent, high-profile issue in obstetric care. Amniotic fluid lactate (AFL) reflects the uterine metabolic status. High levels associate with subsequent need for operative intervention due to dystocia. In sports medicine it is known that lactic acid can affect muscular performance and can be decreased by bicarbonate given orally before physical activity. MATERIAL AND METHODS: Two hundred dystocic deliveries were included. At the confirmation of dystocia, the AFL- level was analyzed...
June 7, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28584368/pathophysiology-of-autoimmune-bullous-diseases-nature-versus-nurture
#9
Forum Patel, Reason Wilken, Falin B Patel, Hawa Sultani, Itzel Bustos, Christopher Duong, John J Zone, Siba P Raychaudhuri, Emanual Maverakis
Pemphigus and pemphigoid are the prototypical immunobullous diseases. Although it has been well established that they are caused by deposition of autoreactive antibodies directed against adherence proteins within the skin, the specific genetic and environmental factors leading to development of these diseases continue to be an area of investigation. Herein, we discuss several of the potential environmental triggers that may induce patients to develop immunobullous diseases including medications, viral infections, UV exposure or other radiation injury and dietary factors...
May 2017: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/28513556/microscale-quantitative-analysis-of-polyhydroxybutyrate-in-prokaryotes-using-idms
#10
Mariana Itzel Velasco Alvarez, Angela Ten Pierick, Patricia T N van Dam, Reza Maleki Seifar, Mark C M van Loosdrecht, S Aljoscha Wahl
Poly(3-hydroxybutyrate) (PHB) is an interesting biopolymer for replacing petroleum-based plastics, its biological production is performed in natural and engineered microorganisms. Current metabolic engineering approaches rely on high-throughput strain construction and screening. Analytical procedures have to be compatible with the small scale and speed of these approaches. Here, we present a method based on isotope dilution mass spectrometry (IDMS) and propanolysis extraction of poly(3-hydroxybutyrate) from an Escherichia coli strain engineered for PHB production...
May 17, 2017: Metabolites
https://www.readbyqxmd.com/read/28474705/-quality-of-life-in-patients-with-psoriasis
#11
Liliana García-Sánchez, Álvaro José Montiel-Jarquín, Eduardo Vázquez-Cruz, Adriana May-Salazar, Itzel Gutiérrez-Gabriel, Jorge Loría-Castellanoso
INTRODUCTION: Psoriasis is a chronic inflammatory skin disease, in which an autoimmune mechanism participates, triggering an accelerated keratopoiesis. Its etiology is unknown; environmental factors, trauma, and infections are involved. The aim of this paper is to present the correlation between the index of severity of psoriasis and quality of life in patients with psoriasis. METHODS: This was a cross-sectional study in 72 patients with psoriasis, older than 15 years old, who agreed to participate in the study...
March 2017: Gaceta Médica de México
https://www.readbyqxmd.com/read/28421790/abdominal-obesity-is-strongly-associated-to-blood-pressure-in-young-mexicans
#12
Rene Urquidez Romero, Miguel Murguía Romero, Julián Esparza Romero, Beatriz Araceli Díaz Torres, Alejandra Rodríguez Tadeo, Gabriel Medrano Donlucas, Arnulfo Ramos Jiménez, Abraham Wall Medrano, Itzell A Gallardo Ortíz, Diana C Tapia-Pancardo C Tapia Pancardo, A René Méndez Cruz, J Rafael Jiménez Flores, Rafael Villalobos Molina
OBJECTIVE: The objective of this study was to determine associations between abdominal obesity (AOb) and the other components of metabolic syndrome (MetS) in young Mexicans in a cross-sectional survey completed during a 4 year period. METHODS: This cross-sectional study reports on components and prevalence of MetS by using Alberti et al. (16) criteria, as well as association between AOb and elevated blood pressure (BP) of 2,993 Mexican university students, ages 17 to 25 years (66% women) from central and northern Mexico, over a 4-year survey (2010-2013)...
March 30, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28336214/indoleamine-2-3-dioxygenase-1-ido1-inhibitors-activate-the-aryl-hydrocarbon-receptor
#13
COMPARATIVE STUDY
Benjamin J Moyer, Itzel Y Rojas, Iain A Murray, Seokwon Lee, Haley F Hazlett, Gary H Perdew, Craig R Tomlinson
Indoleamine 2,3-dioxygenase 1 (IDO1) plays a key role in the immune system by regulating tryptophan levels and T cell differentiation. Several tumor types overexpress IDO1 to avoid immune surveillance making IDO1 of interest as a target for therapeutic intervention. As a result, several IDO1 inhibitors are currently being tested in clinical trials for cancer treatment as well as several other diseases. Many of the IDO1 inhibitors in clinical trials naturally bear structural similarities to the IDO1 substrate tryptophan, as such, they fulfill many of the structural and functional criteria as potential AHR ligands...
May 15, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28331843/curative-effect-of-hf10-on-liver-and-peritoneal-metastasis-mediated-by-host-antitumor-immunity
#14
Yoshihiro Hotta, Hideki Kasuya, Itzel Bustos, Yoshinori Naoe, Toru Ichinose, Maki Tanaka, Yasuhiro Kodera
BACKGROUND: HF10 is a highly attenuated type 1 herpes simplex virus (HSV) with proven effective oncolytic effect. Previous investigations have demonstrated that colon cancer mice model treated with HF10 not only had better survival but were also resistant to the reimplantation of the antitumor effect mediated by host antitumor immunity. Importantly, it has also been noted that in mice with antitumors implanted on both sides of the back, an injection of HF10 on only one side strongly restrains not only the injected antitumor but also the non-injected ones...
2017: Oncolytic Virotherapy
https://www.readbyqxmd.com/read/28285133/modification-of-atgrdp1-gene-expression-affects-silique-and-seed-development-in-arabidopsis-thaliana
#15
Aída Araceli Rodríguez-Hernández, Carlos Vladimir Muro-Medina, Jocelin Itzel Ramírez-Alonso, Juan Francisco Jiménez-Bremont
Glycine Rich Proteins (GRPs) are induced at different developmental stages and in specific plant tissues. Recently, we described a novel Arabidopsis gene encoding a short glycine-rich domain protein (AtGRDP1). This gene is involved in abiotic stress responsiveness; the Atgrdp1-null mutant seeds were more sensitive to stress, while the opposite phenotype was achieved by AtGRDP1 overexpression. In this study, we analyzed the phenotype of the fruits produced by Arabidopsis Atgrdp1 mutants and 35S::AtGRDP1 overexpression lines...
April 29, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28261992/quality-of-life-in-patients-with-antiphospholipid-syndrome-is-related-to-disease-burden-and-anticoagulant-therapy
#16
Gabriela Hernández-Molina, Itzel González-Pérez, Carlos Pacheco-Molina, Antonio R Cabral
AIM: To evaluate health-related quality of life (HRQoL) in primary antiphospholipid syndrome (PAPS) and correlate it with a crude estimate of accrual organ damage, comorbidity (diabetes mellitus, hypertension and dyslipidemia) and treatment (oral anticoagulation, immunosuppressors and prednisone). METHODS: We assessed HRQoL with the Short-Form 36 (SF-36) and the Lupus Quality of Life instrument (LupusQoL) and the disease burden with a modified Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index (SLICC/ACR SDI)...
March 6, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28204171/the-influence-of-prior-multiport-experience-on-the-learning-curve-for-single-port-thoracoscopic-lobectomy-a-multicentre-comparative-study%C3%A2
#17
Antonio E Martin-Ucar, Javier Aragon, Sergio Bolufer Nadal, Carlos Galvez Munoz, Qigang Luo, Itzel Perez Mendez, Alan D L Sihoe, Laura Socci
OBJECTIVES: Competency in video-assisted thoracoscopic (VATS) lobectomy is estimated to be reached after the surgeon completes 50 cases. We wanted to explore the impact of competency in performing multiport VATS lobectomies on completing the needed number of single-port VATS. METHODS: In a retrospective multicentre study, 6 individual surgeons (3 with previous competency in multiport VATS lobectomy and 3 without) submitted their first 50 cases of single-port VATS lobectomies...
June 1, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28110881/effect-of-the-continuous-addition-of-ozone-on-biomass-clogging-control-in-a-biofilter-treating-ethyl-acetate-vapors
#18
Itzel Covarrubias-García, Aitor Aizpuru, Sonia Arriaga
Biofiltration systems have been recognized as a cost-effective and environmentally friendly control technique for volatile organic compounds (VOC) removal. However, the long-term operation of biofilters causes biomass accumulation, and thus the occurrence of bed clogging, leading to a major decrease in biofilter performance. Control methods have been carried out in order to solve clogging problems, including backwashing, bed stirring, modification of flow patterns, predation, starvation and others. Ozone (O3) has been used in biofiltration systems at low concentrations to control the excess of biomass...
April 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28099703/prevalence-and-3-year-persistence-of-human-papillomavirus-serotypes-in-asymptomatic-patients-in-northern-mexico
#19
Oscar R Fajardo-Ramírez, María C Barboza-Cerda, Rocío Ortiz-López, Augusto Rojas-Martínez, María L Garza-Rodríguez, Abel Sepúlveda-Flores, Juan F González-Guerrero, Sofía Bernal-Silva, Ricardo M Cerda-Flores, Itzel E Calleja-Macías, Socorro Rodríguez-Flores, Esthela Sandoval-Guzmán, Teresa Plascencia-Solis, Patricia Pérez-Reyes, Jesús Z Villarreal, Hugo A Barrera-Saldaña
OBJECTIVE: To investigate clinical outcomes and 3-year persistence of human papillomavirus (HPV) infections among women in Mexico. METHODS: A prospective study enrolled sexually active women attending primary healthcare clinics in metropolitan Monterrey, Mexico, between June 3 and August 30, 2002. Baseline data were collected and participants underwent HPV screening. Patients with HPV infections were asked to attend a repeat screening appointment after 3 years, when the same screening data were gathered...
January 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/27916816/blueberry-consumption-affects-serum-uric-acid-concentrations-in-older-adults-in-a-sex-specific-manner
#20
Carol L Cheatham, Itzel Vazquez-Vidal, Amanda Medlin, V Saroja Voruganti
Blueberries are rich in antioxidants and may protect against disease. Uric acid accounts for about 50% of the antioxidant properties in humans. Elevated levels of serum uric acid (SUA) or hyperuricemia is a risk factor for cardiovascular disease (CVD). The aim was to determine the effect of blueberries on SUA in older adults. Participants (n = 133, 65-80 years) experiencing mild cognitive impairment (MCI) were randomized in a double-blind 6-month clinical trial to either blueberry or placebo. A reference group with no MCI received no treatment...
November 29, 2016: Antioxidants (Basel, Switzerland)
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