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https://www.readbyqxmd.com/read/28643952/asn194lys-mutation-in-rvg29-peptide-increases-gfp-transgene-delivery-by-endocytosis-to-neuroblastoma-and-astrocyte-cells
#1
Sheila Adela Villa-Cedillo, Humberto Rodríguez-Rocha, Laura Mireya Zavala-Flores, Roberto Montes-de-Oca-Luna, Aracely García-García, Maria de Jesus Loera-Arias, Odila Saucedo-Cárdenas
OBJECTIVES: A cell-penetrating peptide-based delivery system could target specific types of cells for therapeutic genes delivery. To increase the gene delivery efficiency into neuronal phenotype cells, we introduced an Asn194Lys mutation to RVG29 peptide derived from rabies virus glycoprotein and added a nuclear localization signal to enhance its nuclear import. METHODS: Mutant RVG or wild-type RVG peptide, a karyophilic peptide (KP) and a plasmid encoding green fluorescent protein (pGL) were bound by electrostatic charges to form four different kinds of RVG complexes...
June 23, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28643166/structural-disorder-in-plant-proteins-where-plasticity-meets-sessility
#2
REVIEW
Alejandra A Covarrubias, Cesar L Cuevas-Velazquez, Paulette S Romero-Pérez, David F Rendón-Luna, Caspar C C Chater
Plants are sessile organisms. This intriguing nature provokes the question of how they survive despite the continual perturbations caused by their constantly changing environment. The large amount of knowledge accumulated to date demonstrates the fascinating dynamic and plastic mechanisms, which underpin the diverse strategies selected in plants in response to the fluctuating environment. This phenotypic plasticity requires an efficient integration of external cues to their growth and developmental programs that can only be achieved through the dynamic and interactive coordination of various signaling networks...
June 22, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28638962/sensitivity-of-the-endogeic-tropical-earthworm-pontoscolex-corethrurus-to-the-presence-of-heavy-crude-oil
#3
María Del Carmen Cuevas-Díaz, Dinora Vázquez-Luna, Sergio Martínez-Hernández, Oswaldo Guzmán-López, Angel I Ortíz-Ceballos
Contamination of soil with petroleum is common in oil-producing areas across the tropical regions of the world. There is limited knowledge on the sensitivity of endogeic tropical earthworms to the contamination of soil with total petroleum hydrocarbons (TPH) present in crude oil. Pontoscolex corethrurus is a dominant species in tropical agroecosystems around oil-processing facilities. The sensitivity of P. corethrurus to soil artificially contaminated with "Maya" Mexican heavy crude oil was investigated through avoidance and acute ecotoxicity tests, using the following measured concentrations: 0 (reference soil), 551, 969, 4845, 9991 and 14,869 mg/kg...
June 21, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28638729/cellular-immunotherapies-for-cancer
#4
REVIEW
Pedro Berraondo, Sara Labiano, Luna Minute, Iñaki Etxeberria, Marcos Vasquez, Alvaro Sanchez-Arraez, Alvaro Teijeira, Ignacio Melero
Lessons learned over decades on the use of gene and cell therapies have found clinical applicability in the field of cancer immunotherapy. On December 16(th), 2016 a symposium was held in Pamplona (Spain) to analyze and discuss the critical points for the clinical success of adoptive cell transfer strategies in cancer immunotherapy. Cellular immunotherapy is being currently exploited for the development of new cancer vaccines using ex vivo manipulated dendritic cells or to enhance the number of effector cells, transferring reinvigorated NK cells or T cells...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28636382/development-of-efficient-chemistry-to-generate-site-specific-disulfide-linked-protein-and-peptide-payload-conjugates-application-to-thiomab%C3%A2-antibody-drug-conjugates
#5
Jack David Sadowsky, Thomas H Pillow, Jinhua Chen, Fang Fan, Changrong He, Yanli Wang, Gang Yan, Hui Yao, Zijin Xu, Shanique Martin, Donglu Zhang, Phillip Chu, Josefa Dela Cruz-Chuh, Aimee O'Donohue, Guangmin Li, Geoffrey Del Rosario, Jintang He, Luna Liu, Carl K Ng, Dian Su, Gail D Lewis Phillips, Katherine Ruth Kozak, Shang-Fan Yu, Keyang Xu, Douglas Leipold, John S Wai
Conjugation of small molecule payloads to specific cysteine residues on proteins via a disulfide bond represents an attractive strategy to generate redox-sensitive bioconjugates, which have value as potential diagnostic reagents or therapeutics. Advancement of such "direct-disulfide" bioconjugates to the clinic necessitates chemical methods to form disulfide connections efficiently, without byproducts. The disulfide connection must also be resistant to premature cleavage by thiols prior to arrival at the targeted tissue...
June 21, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28635587/ictv-virus-taxonomy-profile-ophioviridae
#6
María Laura García, Elena Dal Bó, John V da Graça, Selma Gago-Zachert, John Hammond, Pedro Moreno, Tomohide Natsuaki, Vicente Pallás, Jose A Navarro, Carina A Reyes, Gabriel Robles Luna, Takahide Sasaya, Ioannis E Tzanetakis, Anna María Vaira, Martin Verbeek, Ictv Report Consortium
The Ophioviridae is a family of filamentous plant viruses, with single-stranded negative, and possibly ambisense, RNA genomes of 11.3-12.5 kb divided into 3-4 segments, each encapsidated separately. Virions are naked filamentous nucleocapsids, forming kinked circles of at least two different contour lengths. The sole genus, Ophiovirus, includes seven species. Four ophioviruses are soil-transmitted and their natural hosts include trees, shrubs, vegetables and bulbous or corm-forming ornamentals, both monocots and dicots...
June 21, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28634475/cesarean-or-vaginal-birth-does-not-impact-the-longitudinal-development-of-the-gut-microbiome-in-a-cohort-of-exclusively-preterm-infants
#7
Christopher J Stewart, Nicholas D Embleton, Elizabeth Clements, Pamela N Luna, Daniel P Smith, Tatiana Y Fofanova, Andrew Nelson, Gillian Taylor, Caroline H Orr, Joseph F Petrosino, Janet E Berrington, Stephen P Cummings
The short and long-term impact of birth mode on the developing gut microbiome in neonates has potential implications for the health of infants. In term infants, the microbiome immediately following birth across multiple body sites corresponds to birth mode, with increased Bacteroides in vaginally delivered infants. We aimed to determine the impact of birth mode of the preterm gut microbiome over the first 100 days of life and following neonatal intensive care unit (NICU) discharge. In total, 867 stool samples from 46 preterm infants (21 cesarean and 25 vaginal), median gestational age 27 weeks, were sequenced (V4 region 16S rRNA gene, Illumina MiSeq)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28633498/thymol-as-natural-antioxidant-additive-for-poultry-feed-oxidative-stability-improvement
#8
A Luna, R C Lema-Alba, J S Dambolena, J A Zygadlo, M C Labaque, R H Marin
Antioxidant are regularly included in poultry feed as protection from deterioration during storage. Recently the interest for the use of natural phytochemicals in animal diets has been increased. Thymol (THY) has been proven to be an effective antioxidant for extending broiler meat quality during storage with similar action to the widely used butylated hydroxytoluene (BHT). This study evaluates whether THY can also have a protective effect on the feed mash by assessing its antioxidant potential and related changes in fatty acid (FA) balance...
June 17, 2017: Poultry Science
https://www.readbyqxmd.com/read/28633364/restricted-health-care-entitlements-for-child-migrants-in-europe-and-australia
#9
Liv Stubbe Østergaard, Marie Norredam, Claire Mock-Munoz de Luna, Mitch Blair, Sharon Goldfeld, Anders Hjern
More than 300 000 asylum seeking children were registered in Europe alone during 2015. In this study, we examined entitlements for health care for these and other migrant children in Europe and Australia in a framework based on United Nations Convention of the Rights of the Child (UNCRC). Survey to child health professionals, NGO's and European Ombudspersons for Children in 30 EU/EEA countries and Australia, supplemented by desktop research of official documents. Migrant children were categorised as asylum seekers and irregular/undocumented migrants...
June 14, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/28630186/loss-of-c-5-sterol-desaturase-activity-results-in-increased-resistance-to-azole-and-echinocandin-antifungals-in-a-clinical-isolate-of-candida-parapsilosis
#10
Jeffrey M Rybak, C Michael Dickens, Josie E Parker, Kelly Caudle, Kayihura Manigaba, Sarah G Whaley, Andrew Nishimoto, Arturo Luna-Tapia, Sujoy Roy, Qing Zhang, Katherine S Barker, Glen E Palmer, Thomas R Sutter, Ramin Homayouni, Nathan P Wiederhold, Steven L Kelly, P David Rogers
Among emerging non-albicans Candida species, C. parapsilosis is of particular concern as a cause of nosocomial bloodstream infections in neonatal and intensive care unit patients. While fluconazole and echinocandins are considered effective treatment of such infections, recent reports of fluconazole and echinocandin resistance in C. parapsilosis indicate a growing problem. The present study describes a novel mechanism of antifungal resistance in this organism affecting the susceptibility of azole and echinocandin antifungals in a clinical isolate obtained from a patient with prosthetic valve endocarditis...
June 19, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28626456/bactericidal-effect-of-photodynamic-therapy-alone-or-in-combination-with-mupirocin-or-linezolid-on-staphylococcus-aureus
#11
Vanesa Pérez-Laguna, Luna Pérez-Artiaga, Verónica Lampaya-Pérez, Isabel García-Luque, Sofía Ballesta, Santi Nonell, Manuel P Paz-Cristobal, Yolanda Gilaberte, Antonio Rezusta
Antibiotic treatments frequently fail due to the development of antibiotic resistance, underscoring the need for new treatment strategies. Antimicrobial photodynamic therapy (aPDT) could constitute an alternative therapy. In bacterial suspensions of Staphylococcus aureus, which is commonly implicated in cutaneous and mucosal infections, we evaluated the in vitro efficacy of aPDT, using the photosensitizing agents rose bengal (RB) or methylene blue (MB), alone or combined with the antibiotics mupirocin (MU) or linezolid (LN)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28625840/survival-of-litopenaeus-vannemei-shrimp-fed-on-diets-supplemented-with-dunaliella-sp-is-improved-after-challenges-by-vibrio-parahaemolyticus
#12
Diana Medina Félix, José Antonio López Elías, Ángel Isidro Campa Córdova, Luis Rafael Martínez Córdova, Antonio Luna González, Edilmar Cortez Jacinto, Nolberta Huerta Aldaz, Fernando Cano Mendoza, María Guadalupe Burboa Zazueta
Survival of Litopenaeus vannamei was evaluated during a Vibrio parahaemolyticus infection. This bacteria has been causing significant economic losses in the shrimp industry due to the appearance of early mortality syndrome (EMS), also known as acute hepatopancreatic necrosis disease (AHPND). Control of bacteria in ponds is difficult to achieve with antibiotics due to environmental infections and antibiotic resistance. New methods have been proposed to control and prevent the impact of bacterial infections. The physiological response indicated by plasma biochemical parameters in shrimp can determine their health and stress status...
June 15, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28624355/3-np-induced-huntington-s-like-disease-impairs-nrf2-activation-without-loss-of-cardiac-function-in-aged-rats
#13
A Silva-Palacios, M Ostolga-Chavarría, M Buelna-Chontal, C Garibay, S Hernández-Reséndiz, F J Roldán, P L Flores, A Luna-López, M Königsberg, C Zazueta
Cardiovascular diseases (CVDs) are one of the leading causes of death in patients over 60years with Huntington's disease (HD). Here, we investigated if age-related oxidative stress (OS) is a relevant factor to develop cardiac damage in an in vivo model of striatal neurodegeneration induced by 3-nitropropionic acid (3-NP). We also evaluated the potential effect of tert-butylhydroquinone (tBHQ) to increase the Nrf2-regulated antioxidant response in hearts from adult and aged rats intoxicated with 3-NP. Our results showed that 3-NP-treatment did not induce cardiac dysfunction, neither in adult nor in aged rats...
June 14, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28623027/ade-and-dengue-vaccination
#14
Ruth Aralí Martínez-Vega, Gabriel Carrasquila, Expedito Luna, José Ramos-Castañeda
The vaccine against Dengue virus (DENV), Dengvaxia® (CYD), produced by Sanofi-Pasteur, has been registered by several national regulatory agencies; nevertheless, the performance and security of this vaccine have been challenged in a series of recent papers. In this work, we intend to contribute to the debate by analyzing the concept of an enhancing vaccine, presenting objections to the epidemiological model base of the concept and, likewise, presenting data that contradict that concept.
June 13, 2017: Vaccine
https://www.readbyqxmd.com/read/28619816/correction-for-vazquez-hernandez-et-al-draft-genome-sequence-of-streptomyces-scabrisporus-nf3-an-endophyte-isolated-from-amphipterygium-adstringens
#15
Melissa Vazquez-Hernandez, Corina Diana Ceapa, Stefany Daniela Rodríguez-Luna, Romina Rodríguez-Sanoja, Sergio Sánchez
No abstract text is available yet for this article.
June 15, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28618282/global-shape-integration-and-illusory-form-perception-in-the-absence-of-awareness
#16
Mikel Jimenez, Pedro R Montoro, Dolores Luna
Previous research on perceptual organization operations still provides contradictory evidence on whether the integration of sparse local elements into coherently unified shapes and the construction of the illusory form are accomplished without the need of awareness. In the present study, three experiments were conducted in which participants were presented with masked (Experiment 1, SOA=27ms; Experiment 2; SOA=53ms) and unmasked (Experiment 3) primes consisting of geometric shapes (a square or a diamond) that could be congruent or incongruent with a subsequent probe stimuli (square vs...
June 12, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28618254/platelet-derived-growth-factor-bb-influences-muscle-regeneration-in-duchenne-muscle-dystrophy
#17
Patricia Piñol-Jurado, Eduard Gallardo, Noemi de Luna, Xavier Suárez-Calvet, Carles Sánchez-Riera, Esther Fernández-Simón, Clara Gomis, Isabel Illa, Jordi Díaz-Manera
Duchenne muscular dystrophy (DMD) is characterized by a progressive loss of muscle fibers, and their substitution by fibrotic and adipose tissue. Many factors contribute to this process, but the molecular pathways related to regeneration and degeneration of muscle are not completely known. Platelet-derived growth factor (PDGF)-BB belongs to a family of growth factors that regulate proliferation, migration, and differentiation of mesenchymal cells. The role of PDGF-BB in muscle regeneration in humans has not been studied...
June 12, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28617052/neotomodon-alstoni-mice-present-sex-differences-between-lean-and-obese-in-daily-hypothalamic-leptin-signaling
#18
Moisés Pérez-Mendoza, Dalia Luna-Moreno, Agustín Carmona-Castro, Hugo A Rodríguez-Guadarrama, Luis M Montoya-Gómez, Mauricio Díaz-Muñoz, Manuel Miranda-Anaya
This article compared the effects of spontaneous obesity on the daily profile in the relative amount of the leptin receptor (LepRb), and its output. That is the precursor Pro-opiomelanocortin (POMC) over a 24-hour period and compared with differences in locomotion and food intake in periods of artificial light. Differences between lean and obese mice were examined, as were sex differences. Body weight, food intake and locomotor activity were monitored in freely moving lean and obese mice. Hypothalamic tissue was collected at 5 h, 10 h, 15 h, 19 h and 24 h...
June 15, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28614475/-positioning-ecuador-in-the-global-health-agenda-as-a-result-of-sector-reform
#19
Cristina Luna, Carlos Andrés Emanuele, Daniel De La Torre
Objective: Analyze strategies implemented by Ecuador's Ministry of Public Health (MPH) to position the country in the global health agenda during the period 2011-2015 as a result of health sector reform. Method: Documentary review and interviews with stakeholders in national and international agencies with respect to positioning in the global health sphere during the study period. Results: It was observed that the reform process produced a new framework to manage international health relations...
June 8, 2017: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
https://www.readbyqxmd.com/read/28614452/-profile-of-clinical-trials-enrolling-brazilian-children
#20
Jean Mendes de Lucena Vieira, Elisangela da Costa Lima, Marcelo Gerardin Poirot Land, Miriam Ventura, Helena Lutescia Luna Coelho
This study aimed to characterize the clinical trials with medicines enrolling Brazilian children and adolescents, registered in the databases of Clinical Trials and the Brazilian Clinical Trials Network (ReBEC) from 1994 to 2014. Only 462 clinical trials enrolled Brazilian children and adolescents. There was an increase in registrations beginning in 2003, with an important drop in 2011. Among these trials, 35.5% were hosted in Brazil. The international clinical trials were mostly conducted by North American companies...
June 12, 2017: Cadernos de Saúde Pública
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