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https://www.readbyqxmd.com/read/29768679/aza-macrocyclic-triphenylamine-ligands-for-g-quadruplex-recognition
#1
Enrique Victor García-España, Isabel Pont, Jorge González-García, Mario Inclán, Matthew Reynolds, Estefanía Delgado-Pinar, M Teresa Albelda, Ramon Vilar
A new series of triphenylamine-based ligands with one (TPA1PY), two (TPA2PY) or three pending aza-macrocycle(s) (TPA3PY) have been synthesised and studied by means of pH-metric titrations, UV/Vis spectroscopy and fluorescence experiments. The affinity of these ligands for G-quadruplex (G4) DNA and its selectivity over duplex DNA were investigated by FRET melting assays, fluorimetric titrations and circular dichroism (CD) spectroscopy. Interestingly, the interaction of the bi- and specially the tri-branched ligand with G4 leads to a very intense red-shifted fluorescence emission band which may be associated with intermolecular aggregation between the molecule and the DNA...
May 16, 2018: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29766664/tissue-engineered-nigrostriatal-pathway-for-treatment-of-parkinson-s-disease
#2
Laura A Struzyna, Kevin D Browne, Zachary D Brodnik, Justin C Burrell, James P Harris, H Isaac Chen, John A Wolf, Kate V Panzer, James Lim, John E Duda, Rodrigo A España, D Kacy Cullen
The classic motor deficits of Parkinson's disease are caused by degeneration of dopaminergic neurons in the substantia nigra pars compacta, resulting in the loss of their long-distance axonal projections that modulate the striatum. Current treatments only minimize the symptoms of this disconnection as there is no approach capable of replacing the nigrostriatal pathway. We are applying micro-tissue engineering techniques to create living, implantable constructs that mimic the architecture and function of the nigrostriatal pathway...
May 15, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29761357/classifying-brain-metastases-by-their-primary-site-of-origin-using-a-radiomics-approach-based-on-texture-analysis-a-feasibility-study
#3
Rafael Ortiz-Ramón, Andrés Larroza, Silvia Ruiz-España, Estanislao Arana, David Moratal
OBJECTIVE: To examine the capability of MRI texture analysis to differentiate the primary site of origin of brain metastases following a radiomics approach. METHODS: Sixty-seven untreated brain metastases (BM) were found in 3D T1-weighted MRI of 38 patients with cancer: 27 from lung cancer, 23 from melanoma and 17 from breast cancer. These lesions were segmented in 2D and 3D to compare the discriminative power of 2D and 3D texture features. The images were quantized using different number of gray-levels to test the influence of quantization...
May 14, 2018: European Radiology
https://www.readbyqxmd.com/read/29742656/satisfaction-with-the-intrauterine-device-insertion-procedure-among-adolescent-and-young-adult-women
#4
Aletha Y Akers, Jennifer Harding, Lisa K Perriera, Courtney Schreiber, J Felipe Garcia-Espana, Sarita Sonalkar
OBJECTIVE: To evaluate satisfaction with intrauterine device (IUD) insertion procedures among adolescent and young adult women. METHODS: This secondary analysis of data from a multisite, single-blind, sham-controlled randomized trial of women having a levonorgestrel 13.5-mg IUD inserted enrolled participants from March 2015 through July 2016 at three family planning clinics in Philadelphia, Pennsylvania. Eligible participants were 14-22 years of age, nulliparous, not pregnant, and English-speaking...
May 7, 2018: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29730979/economic-impact-of-olaparib-on-maintenance-treatment-of-patients-with-brca-mutation-positive-platinum-sensitive-relapsing-high-grade-serous-epithelial-ovarian-cancer-in-spain
#5
Laura Delgado-Ortega, Jordi Ginés Rubió, Maria Del Carmen Garcías de España, David Carcedo, Luis Cordero Puentes, Carlota Moya de Alarcón
OBJECTIVE: To estimate the economic impact of the introduction of olaparib in  the Spanish National Health System as maintenance monotherapy in patients  with BRCA-mutation positive high-grade serous ovarian cancer. METHOD: A budget impact model was developed from the Spanish NHS perspective and a time horizon of 5 years for four treatment lines. The model included prevalent and incident patients estimated according to Spanish epidemiological data. Patients moved between treatment lines according to the progression-free survival and overall survival curves  obtained from the respective clinical trials...
May 1, 2018: Farmacia Hospitalaria
https://www.readbyqxmd.com/read/29710651/considerations-of-nano-qsar-qspr-models-for-nanopesticide-risk-assessment-within-the-european-legislative-framework
#6
REVIEW
Juan José Villaverde, Beatriz Sevilla-Morán, Carmen López-Goti, José Luis Alonso-Prados, Pilar Sandín-España
The European market for pesticides is currently legislated through the well-developed Regulation (EC) No. 1107/2009. This regulation promotes the competitiveness of European agriculture, recognizing the necessity of safe pesticides for human and animal health and the environment to protect crops against pests, diseases and weeds. In this sense, nanotechnology can provide a tremendous opportunity to achieve a more rational use of pesticides. However, the lack of information regarding nanopesticides and their fate and behavior in the environment and their effects on human and animal health is inhibiting rapid nanopesticide incorporation into European Union agriculture...
April 16, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29695081/assessing-the-effects-of-alloxydim-phototransformation-products-by-qsar-models-and-a-phytotoxicity-study
#7
Juan J Villaverde, Inés Santín-Montanyá, Beatriz Sevilla-Morán, José L Alonso-Prados, Pilar Sandín-España
Once applied, an herbicide first makes contact with leaves and soil. It is known that photolysis can be one of the most important processes of dissipation of herbicides in the field. However, degradation does not guarantee detoxification and can give rise to byproducts that could be more toxic and/or persistent than the active substance. In this work, the photodegradation of alloxydim herbicide in soil and leaf cuticle surrogates was studied and a detailed study on the phytotoxicity of the main byproduct on sugar beet, tomato, and rotational crops was performed...
April 24, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29688216/spatiotemporal-incidence-of-zika-and-associated-environmental-drivers-for-the-2015-2016-epidemic-in-colombia
#8
Amir S Siraj, Isabel Rodriguez-Barraquer, Christopher M Barker, Natalia Tejedor-Garavito, Dennis Harding, Christopher Lorton, Dejan Lukacevic, Gene Oates, Guido Espana, Moritz U G Kraemer, Carrie Manore, Michael A Johansson, Andrew J Tatem, Robert C Reiner, T Alex Perkins
Despite a long history of mosquito-borne virus epidemics in the Americas, the impact of the Zika virus (ZIKV) epidemic of 2015-2016 was unexpected. The need for scientifically informed decision-making is driving research to understand the emergence and spread of ZIKV. To support that research, we assembled a data set of key covariates for modeling ZIKV transmission dynamics in Colombia, where ZIKV transmission was widespread and the government made incidence data publically available. On a weekly basis between January 1, 2014 and October 1, 2016 at three administrative levels, we collated spatiotemporal Zika incidence data, nine environmental variables, and demographic data into a single downloadable database...
April 24, 2018: Scientific Data
https://www.readbyqxmd.com/read/29684225/primary-intraocular-malignant-rhabdoid-tumor-without-extrascleral-compromise
#9
Eva Ayala Barroso, Alejandra Tapia Bahamondes, Juan Carlos Sánchez España, Llúcia Alós, Ramón Medel Jiménez
Primary intraocular malignant rhabdoid tumor is classified as a malignant extrarenal rhabdoid tumor. It is extremely rare, highly aggressive, and, so far, only one case (in a newborn) has been described in the medical literature. The authors report a second case of primary intraocular malignant rhabdoid tumor, this time without extrascleral involvement and in a teenager, and describe its histological, immunohistochemical, and radiological characteristics along with clinical correlations. [J Pediatr Ophthalmol...
April 23, 2018: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/29682739/bullous-pemphigoid-induced-by-dipeptidyl-peptidase-4-inhibitors-eight-cases-with-clinical-and-immunological-characterization
#10
Irene García-Díez, Marta Ivars-Lleó, Daniel López-Aventín, Norito Ishii, Takashi Hashimoto, Pilar Iranzo, Ramon M Pujol, Agustín España, Josep E Herrero-Gonzalez
BACKGROUND: Dipeptidyl peptidase-4 (DPP-4) inhibitors have increasingly been identified as causative agents of bullous pemphigoid. The clinical and immunological characteristics of this pemphigoid variant are still unclear. The objective of our study was to analyze the clinical and immunological features of patients with pemphigoid induced by DPP-4 inhibitors. METHODS: All patients diagnosed with DPP-4 inhibitor-associated bullous pemphigoid at dermatology departments in three Spanish centers during the period 2013 to 2015 were included...
April 23, 2018: International Journal of Dermatology
https://www.readbyqxmd.com/read/29628387/gentamicin-may-have-no-effect-on-mortality-of-staphylococcal-prosthetic-valve-endocarditis
#11
Antonio Ramos-Martínez, Alejandro Muñoz Serrano, Arístides de Alarcón González, Patricia Muñoz, Ana Fernández-Cruz, Maricela Valerio, María Carmen Fariñas, Manuel Gutiérrez-Cuadra, José Ma Miró, Josefa Ruiz-Morales, Dolores Sousa-Regueiro, José Miguel Montejo, Juan Gálvez-Acebal, Carmen HidalgoTenorio, Fernando Domínguez
PURPOSE: To analyze the influence of adding gentamicin to a regimen consisting of β-lactam or vancomycin plus rifampicin on survival in patients suffering from Staphylococcal prosthetic valve endocarditis (SPVE). METHODS: From January 2008 to September 2016, 334 patients with definite SPVE were attended in the participating hospitals. Ninety-four patients (28.1%) received treatment based on β-lactam or vancomycin plus rifampicin and were included in the study...
April 5, 2018: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/29600186/symptomatic-accommodative-and-binocular-dysfunctions-from-the-use-of-flat-panel-displays
#12
Esteban Porcar, Juan Carlos Montalt, Álvaro M Pons, Enrique España-Gregori
AIM: To determine the presence of symptomatic accommodative and non-strabismic binocular dysfunctions (ANS BD) in a non-presbyopic population of video display unit (VDU) users with flat-panel displays. METHODS: One hundred and one VDU users, aged between 20 to 34y, initially participated in the study. This study excluded contact-lens wearers and subjects who had undergone refractive surgery or had any systemic or ocular disease. First, subjects were asked about the type and nature of eye symptoms they experienced during VDU use...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29594279/enhancement-of-sod-activity-in-boehmite-supported-nanoreceptors
#13
Álvaro Martínez-Camarena, Estefanía Delgado-Pinar, Concepción Soriano, Javier Alarcón, José M Llinares, Roberto Tejero, Enrique García-España
The binuclear Cu2+ complex of a pyridinophane polyamine ligand ranking amongst the fastest SOD mimetics so far reported displays a remarkable SOD activity enhancement when grafted to the surface of boehmite (γ-AlO(OH)) nanoparticles (BNPs).
March 29, 2018: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29570870/on-the-antibacterial-activity-of-azacarboxylate-ligands-lowered-metal-ion-affinities-for-bis-amide-derivatives-of-edta-do-not-mean-reduced-activity
#14
Raminder S Mulla, Marikka S Beecroft, Robert Pal, Juan A Aguilar, Javier Pitarch-Jarque, Enrique García-España, Elena Lurie-Luke, Gary J Sharples, J A Gareth Williams
EDTA is widely used as an inhibitor of bacterial growth, affecting the uptake and control of metal ions by microorganisms. We describe the synthesis and characterisation of two symmetrical bis-amide derivatives of EDTA, featuring glycyl or pyridyl substituents: AmGly2 and AmPy2 . Metal ion affinities (logK) have been evaluated for a range of metals (Mg2+ , Ca2+ , Fe3+ , Mn2+ , Zn2+ ), revealing less avid binding compared to EDTA. The solid-state structures of AmGly2 and of its Mg2+ complex have been determined crystallographically...
March 23, 2018: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29569921/computational-study-of-the-structure-and-degradation-products-of-alloxydim-herbicide
#15
Juan José Villaverde, Pilar Sandin-España, Jose Luis Alonso-Prados, Al Mokhtar Lamsabhi, Manuel Alcami
Density Functional Theory calculations allowed to study alloxydim herbicide and to identify the most stable conformers, the factors that governs their stability as well as the interconversion mechanisms among the most relevant conformers. The degradation chain involves, as a first step, the cleavage of the N-O bond and the formation of a stable intermediate difficult to characterize experimentally. The study performed also allowed to identify the properties of this elusive intermediate and to determine that the dominant fragmentation process in the gas phase is the homolytic fragmentation...
March 23, 2018: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29565698/orbital-and-peri-orbital-amyloidosis-a-report-of-four-cases
#16
Ramón Medel Jiménez, Juan C Sánchez España, Luz M Vasquez, Alejandra Tapia Bahamondes, Max Rondón, Treserra Francesc, Eva Ayala Barroso
Our objective was to describe our experience with orbital amyloidosis, and illustrate the different forms of presentation. This was a retrospective case series of four patients with biopsy-proven orbital amyloi- dosis, over the period from 2014 to 2016. We describe its diagnostic and clinical characteristics, management and systemic study. The series comprised three women and one man of mean age 52 ± 9.4 years. Affected sites were the lacrimal gland, tarsal conjunctiva, lacrimal sac and orbit. In three of the four patients, calcifications were observed...
March 22, 2018: Orbit
https://www.readbyqxmd.com/read/29543543/transcaruncular-rectus-tendon-fixation-to-the-orbit-and-frontalis-flap-for-complete-third-nerve-palsy
#17
Ramón Medel Jiménez, Juan C Sánchez España, José Visa Nassarre, Eva Ayala Barroso, Alfredo Pueyo Ferrer, Alejandra Tapia Bahamondes, Luz M Vasquez
PURPOSE: To describe our experience and outcomes managing complete third cranial nerve palsy. METHODS: This was a retrospective analysis of the clinical records of 7 consecutive patients treated at our centre for unilateral third nerve palsy over the period 2010-2016. We describe our surgical approach using a frontalis muscle flap to correct the eyelid ptosis associated with medial fixation of the rectus muscle tendon to the orbit to correct the horizontal deviation...
March 15, 2018: Orbit
https://www.readbyqxmd.com/read/29512202/mucocutaneous-manifestations-of-cocaine-abuse-a-review
#18
REVIEW
E Moreno-Artero, E Querol-Cisneros, N Rodríguez-Garijo, A Tomás-Velázquez, J Antoñanzas, F Secundino, M Pilar Gil-Sánchez, A España
Cocaine is an alkaloid extracted from the leaves of the Erythroxylum coca plant that emerged in the 1970s as a fashionable drug among members of certain social backgrounds. Cocaine abuse is a problem of current interest, which is mostly hidden and underdiagnosed, but dramatically widespread among all socio-economic strata, and with an incidence which is increasing at an alarming rate. There are 1.5 million cocaine consumers in the USA. In Spain, the prevalence of consumption among the population between 15 and 65 years old is higher, reaching 3...
March 6, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29509439/initial-inflammatory-profile-in-community-acquired-pneumonia-depends-on-time-since-onset-of-symptoms
#19
Raúl Méndez, Rosario Menéndez, Catia Cillóniz, Isabel Amara-Elori, Rosanel Amaro, Paula González, Tomás Posadas, Alexandra Gimeno, Pedro P España, Jordi Almirall, Antoni Torres
RATIONALE: Assessment of the inflammatory response can help decision-making process when diagnosing community-acquired pneumonia (CAP), but there is a lack of information about the influence of time since onset of symptoms. We studied the impact of the number of days since onset of symptoms on inflammatory cytokines and biomarkers concentrations at CAP diagnosis in hospitalized patients. METHODS: We performed a secondary analysis in two prospective cohorts including 541 patients in the derivation cohort and 422 in the validation cohort...
March 6, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29491649/methyl-jasmonate-and-salicylic-acid-enhanced-the-production-of-ursolic-and-oleanolic-acid-in-callus-cultures-of-lepechinia-caulescens
#20
Víctor M Vergara Martínez, Samuel E Estrada-Soto, José de Jesús Arellano-García, Julio C Rivera-Leyva, Patricia Castillo-España, Angélica Flores Flores, Alexandre T Cardoso-Taketa, Irene Perea-Arango
Background: The production of triterpenes from plants for pharmacological purposes varies in concentration, due to genetic and environmental factors. In vitro culture enables the control and increase of these bioactive molecules. Objective: To evaluate the effect of plant growth regulators and elicitors in the induction of calli and the production of ursolic acid (UA) and oleanolic acid (OA) in Lepechinia caulescens . Materials and Methods: Leaf explants were exposed for the induction of calli at different concentrations and combinations of 2,4-dichlorophenoxyacetic acid (2,4-D) and 6-benzylaminopurine (BAP)...
January 2018: Pharmacognosy Magazine
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