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Victor Perez

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https://www.readbyqxmd.com/read/28528012/impact-of-total-pars-plana-vitrectomy-on-postoperative-complications-in-aphakic-snap-on-type-1-boston-keratoprosthesis
#1
Victor L Perez, Ella H Leung, Audina M Berrocal, Thomas A Albini, Jean Marie Parel, Guillermo Amescua, Eduardo C Alfonso, Tayyeba K Ali, Allister Gibbons
PURPOSE: To determine the impact of total pars plana vitrectomies (PPVs) with peripheral shaving of the vitreous base on the rates of postoperative complications in patients with aphakic, snap-on type I Boston keratoprostheses (KPros). DESIGN: Retrospective, consecutive case series. PARTICIPANTS: A total of 48 eyes in 46 patients with implantation of aphakic, snap-on type 1 Boston KPros performed at a tertiary care facility between January 1, 2007, and December 31, 2013, were included...
May 17, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28513606/corrigendum-risk-model-for-colorectal-cancer-in-spanish-population-using-environmental-and-genetic-factors-results-from-the-mcc-spain-study
#2
Gemma Ibáñez-Sanz, Anna Díez-Villanueva, M Henar Alonso, Francisco Rodríguez-Moranta, Beatriz Pérez-Gómez, Mariona Bustamante, Vicente Martin, Javier Llorca, Pilar Amiano, Eva Ardanaz, Adonina Tardón, Jose J Jiménez-Moleón, Rosana Peiró, Juan Alguacil, Carmen Navarro, Elisabet Guinó, Gemma Binefa, Pablo Fernández-Navarro, Anna Espinosa, Verónica Dávila-Batista, Antonio José Molina, Camilo Palazuelos, Gemma Castaño-Vinyals, Nuria Aragonés, Manolis Kogevinas, Marina Pollán, Victor Moreno
No abstract text is available yet for this article.
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28508592/confining-functional-nanoparticles-into-colloidal-imine-based-cof-spheres-by-a-sequential-encapsulation-crystallization-method
#3
David Rodríguez-San-Miguel, Amirali Yazdi, Vincent Guillerm, Javier Pérez-Carvajal, Víctor Puntes, Daniel Maspoch, Felix Zamora
Here we report a two-step method that enables imparting new functionalities to covalent-organic frameworks by nanoparticle confinement. The direct reaction between 1,3,5-tris(4-aminophenyl)benzene and 1,3,5-benzenetricarbaldehyde in presence of a variety of metallic/metal oxide nanoparticles results in the nanoparticles being embedded in amorphous and non-porous imine-linked polymer organic spheres, NP@a-1. Post-treatment reactions of NP@a-1 with acetic acid under reflux lead to crystalline and porous imine-based COF hybrid spheres, NP@c-1...
May 16, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28507139/long-read-sequencing-uncovers-the-adaptive-topography-of-a-carnivorous-plant-genome
#4
Tianying Lan, Tanya Renner, Enrique Ibarra-Laclette, Kimberly M Farr, Tien-Hao Chang, Sergio Alan Cervantes-Pérez, Chunfang Zheng, David Sankoff, Haibao Tang, Rikky W Purbojati, Alexander Putra, Daniela I Drautz-Moses, Stephan C Schuster, Luis Herrera-Estrella, Victor A Albert
Utricularia gibba, the humped bladderwort, is a carnivorous plant that retains a tiny nuclear genome despite at least two rounds of whole genome duplication (WGD) since common ancestry with grapevine and other species. We used a third-generation genome assembly with several complete chromosomes to reconstruct the two most recent lineage-specific ancestral genomes that led to the modern U. gibba genome structure. Patterns of subgenome dominance in the most recent WGD, both architectural and transcriptional, are suggestive of allopolyploidization, which may have generated genomic novelty and led to instantaneous speciation...
May 15, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28502355/how-to-diagnose-and-treat-infection-in-total-ankle-arthroplasty
#5
REVIEW
Yousef Alrashidi, Ahmed E Galhoum, Martin Wiewiorski, Mario Herrera-Pérez, Raymond Y Hsu, Alexej Barg, Victor Valderrabano
Periprosthetic infection after total ankle arthroplasty (TAA) is a serious complication, often requiring revision surgery, including revision arthroplasty, conversion to ankle arthrodesis, or even amputation. Risk factors for periprosthetic ankle infection include prior surgery at the site of infection, low functional preoperative score, diabetes, and wound healing problems. The clinical presentation of patients with periprosthetic ankle joint infection can be variable and dependent on infection manifestation: acute versus chronic...
June 2017: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/28501971/electrolyte-and-acid-base-disturbances-in-end-stage-liver-disease-a-physiopathological-approach
#6
REVIEW
José Víctor Jiménez, Diego Luis Carrillo-Pérez, Rodrigo Rosado-Canto, Ignacio García-Juárez, Aldo Torre, David Kershenobich, Eduardo Carrillo-Maravilla
Electrolyte and acid-base disturbances are frequent in patients with end-stage liver disease; the underlying physiopathological mechanisms are often complex and represent a diagnostic and therapeutic challenge to the physician. Usually, these disorders do not develop in compensated cirrhotic patients, but with the onset of the classic complications of cirrhosis such as ascites, renal failure, spontaneous bacterial peritonitis and variceal bleeding, multiple electrolyte, and acid-base disturbances emerge. Hyponatremia parallels ascites formation and is a well-known trigger of hepatic encephalopathy; its management in this particular population poses a risky challenge due to the high susceptibility of cirrhotic patients to osmotic demyelination...
May 13, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28482530/stretchable-conductive-polypyrrole-films-modified-with-dopaminated-hyaluronic-acid
#7
Robert Texidó, Antonio Orgaz, Victor Ramos-Pérez, Salvador Borrós
In this paper, we report the modification of polypirrole (PPy) with dopaminated hyaluronic acid (HADA). This design improves PPy adhesion onto stretchable materials such as poly(dimethylsiloxane) (PDMS) allowing the formation of conducting films on this kind of very flexible, hydrophobic materials. The results revealed that described PPy modification allows to obtain stable PPy:HADA nano-suspension able to cast films directly on PDMS. The comparison of PPy:HADA films with conventional PPy and other modified PPy shows that the modification improved the strength of the films under tension stress and their water resistance...
July 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28474731/a-new-gene-expression-signature-for-triple-negative-breast-cancer-using-frozen-fresh-tissue-before-neoadjuvant-chemotherapy
#8
Sandra Karina Santuario-Facio, Servando Cardona-Huerta, Yadira Xitlalli Perez-Paramo, Victor Trevino, Francisco Hernandez-Cabrera, Augusto Rojas-Martinez, Grecia Uscanga-Perales, Jorge Luis Martinez-Rodriguez, Lizeth Martinez-Jacobo, Gerardo Padilla-Rivas, Gerardo Muñoz-Maldonado, Juan Francisco Gonzalez-Guerrero, Javier Valero-Gomez, Ana Lorena Vazquez-Guerrero, Herminia Guadalupe Martinez-Rodriguez, Alvaro Barboza-Quintana, Oralia Barboza-Quintana, Raquel Garza-Guajardo, Rocio Ortiz-Lopez
Triple-negative breast cancer (TNBC) is an aggressive subtype of breast cancer tumors. Comparisons between TNBC and non-triple negative breast cancer (nTNBC) may help to differentiate key components involved in TNBC neoplasms. The purpose of the study was to analyze the expression profile of TNBC versus nTNBC tumors in a homogeneous population from northeastern Mexico. A prospective study of 50 patients was conducted (25 TNBC and 25 nTNBC). Clinic parameters were equally distributed for TNBC and nTNBC: age at diagnosis (51 vs 47 years, p=0...
May 4, 2017: Molecular Medicine
https://www.readbyqxmd.com/read/28451176/on-the-molecular-mechanisms-for-the-h2-co2-separation-performance-of-zeolite-imidazolate-framework-two-layered-membranes
#9
Fernando Cacho-Bailo, Ismael Matito-Martos, Julio Perez-Carbajo, Miren Etxeberría-Benavides, Oğuz Karvan, Víctor Sebastián, Sofía Calero, Carlos Téllez, Joaquín Coronas
Double-layered zeolitic imidazolate framework (ZIF) membranes were fabricated inside polyimide P84 hollow fibers by a step-synthesis conducted by microfluidic technology and applied to pre-combustion gas separation. Our hypothesis, based on the information provided by a combination of molecular simulation and experiments, is that a CO2 adsorption reduction on the surface of the ZIF-9 would enhance the molecular sieving effect of this ZIF-9 layer and therefore the selectivity in the H2/CO2 mixture separation of the entire membrane...
January 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28442796/resonant-raman-scattering-based-approaches-for-the-quantitative-assessment-of-nanometric-znmgo-layers-in-high-efficiency-chalcogenide-solar-cells
#10
Maxim Guc, Dimitrios Hariskos, Lorenzo Calvo-Barrio, Philip Jackson, Florian Oliva, Paul Pistor, Alejandro Perez-Rodriguez, Victor Izquierdo-Roca
This work reports a detailed resonant Raman scattering analysis of ZnMgO solid solution nanometric layers that are being developed for high efficiency chalcogenide solar cells. This includes layers with thicknesses below 100 nm and compositions corresponding to Zn/(Zn + Mg) content rations in the range between 0% and 30%. The vibrational characterization of the layers grown with different compositions and thicknesses has allowed deepening in the knowledge of the sensitivity of the different Raman spectral features on the characteristics of the layers, corroborating the viability of resonant Raman scattering based techniques for their non-destructive quantitative assessment...
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28440768/clinical-and-metabolic-profile-of-patients-with-latent-autoimmune-diabetes-in-adults-in-specialized-care-in-madrid
#11
Alfonso Arranz Martín, Edurne Lecumberri Pascual, Miguel Ángel Brito Sanfiel, Víctor Andía Melero, Lia Nattero Chavez, Iván Sánchez López, Gloria Cánovas Molina, Francisco Arrieta Blanco, Noemí González Perez Del Villar
OBJECTIVE: To report the clinical characteristics of patients with latent autoimmune diabetes in adults (LADA), and to ascertain their metabolic control and associated chronic complications. METHODS: Patients with DM attending specialized medical care in Madrid who met the following criteria: age at diagnosis of DM >30years, initial insulin independence for at least 6months and positive GAD antibodies were enrolled. Clinical profiles, data on LADA diagnosis, associated autoimmunity, C-peptide levels, therapeutic regimen, metabolic control, and presence of chronic complications were analyzed...
January 2017: Endocrinol Diabetes Nutr
https://www.readbyqxmd.com/read/28438995/csilsfm-combines-light-sheet-fluorescence-microscopy-and-coherent-structured-illumination-for-a-lateral-resolution-below-100-nm
#12
Bo-Jui Chang, Victor Didier Perez Meza, Ernst H K Stelzer
Light-sheet-based fluorescence microscopy (LSFM) features optical sectioning in the excitation process. It minimizes fluorophore bleaching as well as phototoxic effects and provides a true axial resolution. The detection path resembles properties of conventional fluorescence microscopy. Structured illumination microscopy (SIM) is attractive for superresolution because of its moderate excitation intensity, high acquisition speed, and compatibility with all fluorophores. We introduce SIM to LSFM because the combination pushes the lateral resolution to the physical limit of linear SIM...
April 24, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28427292/chemical-analyses-and-in-vitro-and-in-vivo-toxicity-of-fruit-methanol-extract-of-sechium-edule-var-nigrum-spinosum
#13
Itzen Aguiñiga-Sánchez, Jorge Cadena-Íñiguez, Edelmiro Santiago-Osorio, Guadalupe Gómez-García, Víctor Manuel Mendoza-Núñez, Juana Rosado-Pérez, Mirna Ruíz-Ramos, Víctor Manuel Cisneros-Solano, Edgar Ledesma-Martínez, Angel de Jesus Delgado-Bordonave, Ramón Marcos Soto-Hernández
CONTEXT: Sechium edule (Jacq.) Sw. (Cucurbitaceae) is used in ethnomedicine, but the diversity of the varietal groups of this species has not often been considered. This is important because we previously reported that different variety of species exhibit different activities across different tumor cell lines. OBJECTIVE: This study investigates the chemical composition and biological activities of extracts obtained from S. edule var. nigrum spinosum. MATERIALS AND METHODS: The leukemia P388 cell line and mononuclear bone marrow cells (MNCBMs) were treated with the extract at a concentration ranging from 40 to 2370 μg/mL for cytotoxicity and viability assays...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28426442/amniotic-membrane-use-for-management-of-corneal-limbal-stem-cell-deficiency
#14
Alfonso L Sabater, Victor L Perez
PURPOSE OF REVIEW: The current article reviews the most recent surgical techniques for management of corneal limbal stem cell deficiency (LSCD) using amniotic membrane tissue. RECENT FINDINGS: Early successes with amniotic membrane transplantation (AMT) for the treatment of ocular surface disorders have encouraged clinicians to investigate new applications. The use of AMT as a temporary patch in emergency cases in which LSCD may develop has considerably improved the prognosis of these patients...
April 19, 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28420367/rationale-and-methods-of-the-ifightdepression-study-a-double-blind-randomized-controlled-trial-evaluating-the-efficacy-of-an-internet-based-self-management-tool-for-moderate-to-mild-depression
#15
Azucena Justicia, Matilde Elices, Ana Isabel Cebria, Diego J Palao, Jesús Gorosabel, Dolors Puigdemont, Javier de Diego-Adeliño, Andrea Gabilondo, Alvaro Iruin, Ulrich Hegerl, Víctor Pérez
BACKGROUND: During the last decade online interventions have emerged as a promising approach for patients with mild/moderate depressive symptoms, reaching at large populations and representing cost-effective alternatives. The main objective of this double-blind, randomized controlled trial is to examine the efficacy of an internet-based self-management tool (iFightDepression) for mild to moderate depression as an add-on to treatment as usual (TAU) versus internet-based psychoeducation plus TAU...
April 19, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28416565/cingulo-insular-structural-alterations-associated-with-psychogenic-symptoms-childhood-abuse-and-ptsd-in-functional-neurological-disorders
#16
David L Perez, Nassim Matin, Arthur Barsky, Victor Costumero-Ramos, Sara J Makaretz, Sigrid S Young, Jorge Sepulcre, W Curt LaFrance, Matcheri S Keshavan, Bradford C Dickerson
OBJECTIVE: Adverse early-life events are predisposing factors for functional neurological disorder (FND) and post-traumatic stress disorder (PTSD). Cingulo-insular regions are implicated in the biology of both conditions and are sites of stress-mediated neuroplasticity. We hypothesised that functional neurological symptoms and the magnitude of childhood abuse would be associated with overlapping anterior cingulate cortex (ACC) and insular volumetric reductions, and that FND and PTSD symptoms would map onto distinct cingulo-insular areas...
April 17, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28412088/tobacco-smoking-and-its-association-with-cognition-in-first-episode-psychosis-patients
#17
Lauren M Hickling, Rocio Perez-Iglesias, Victor Ortiz-García de la Foz, Vincent Balanzá-Martínez, Philip McGuire, Benedicto Crespo-Facorro, Rosa Ayesa-Arriola
Available evidence suggests that nicotine may enhance cognitive functioning. Moreover, it has been suggested that the high prevalence of smoking in people with schizophrenia is in part due to self-medication behaviour to alleviate cognitive deficits. We assessed the association between tobacco smoking and cognitive functioning in a large population of first episode psychosis (FEP) patients (n=304) and healthy controls (n=156). Smokers were not tobacco deprived, or were minimally deprived (≤2h). Verbal memory, visual memory, working memory, processing speed, executive function, motor dexterity and attention were assessed...
April 12, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28408672/the-genome-sequence-of-avibacterium-paragallinarum-strain-cl-has-a-large-repertoire-of-insertion-sequence-elements
#18
Guillermo Horta-Valerdi, Maria Patricia Sanchez-Alonso, Victor M Perez-Marquez, Erasmo Negrete-Abascal, Sergio Vaca-Pacheco, Ismael Hernandez-Gonzalez, Zulema Gomez-Lunar, Gabriela Olmedo-Álvarez, Candelario Vázquez-Cruz
The draft genome sequence of Avibacterium paragallinarum strain CL serovar C is reported here. The genome comprises 154 contigs corresponding to 2.4 Mb with 41% G+C content and many insertion sequence (IS) elements, a characteristic not previously reported in A. paragallinarum.
April 13, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28403219/incidental-hepatocellular-carcinoma-after-liver-transplantation-prevalence-histopathological-features-and-prognostic-impact
#19
Pablo Pérez, Manuel Rodríguez-Perálvarez, Lourdes Guerrero, Víctor González, Rafael Sánchez, Macarena Centeno, Antonio Poyato, Javier Briceño, Marina Sánchez-Frías, Jose Luis Montero, Manuel De la Mata
BACKGROUND: Incidental hepatocellular carcinoma (iHCC) is a histological finding after liver transplantation (LT) which relevance has been scarcely studied. AIMS: to describe the histopathological features of iHCC and to determine its prognostic impact in terms of tumor recurrence and overall survival. METHODS: Observational study including 451 consecutive adult LT patients (2000-2013). Patients aged<18, retransplanted or with early postoperative death were excluded...
2017: PloS One
https://www.readbyqxmd.com/read/28398330/remote-detection-of-buried-landmines-using-a-bacterial-sensor
#20
Shimshon Belkin, Sharon Yagur-Kroll, Yossef Kabessa, Victor Korouma, Tali Septon, Yonatan Anati, Cheinat Zohar-Perez, Zahi Rabinovitz, Amos Nussinovitch, Aharon J Agranat
No abstract text is available yet for this article.
April 11, 2017: Nature Biotechnology
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