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https://www.readbyqxmd.com/read/29150104/high-frequency-of-primary-refractory-disease-and-low-progression-free-survival-rate-of-hodgkin-s-lymphoma-a-decade-of-experience-in-a-latin-american-center
#1
José Carlos Jaime-Pérez, Carmen Magdalena Gamboa-Alonso, José Ramón Padilla-Medina, Raúl Alberto Jiménez-Castillo, Leticia Alejandra Olguín-Ramírez, César Homero Gutiérrez-Aguirre, Olga Graciela Cantú-Rodríguez, David Gómez-Almaguer
BACKGROUND: Reports dealing with clinical outcomes of classical Hodgkin's lymphoma in low- to middle-income countries are scarce and response to therapy is poorly documented. This report describes the characteristics and clinical outcomes of patients with classical Hodgkin's lymphoma from a single institution in Latin America. METHOD: A retrospective study was conducted over ten years of patients with classical Hodgkin's lymphoma treated at a referral center. Progression-free and overall survival rates were estimated by Kaplan-Meier analysis...
October 2017: Revista Brasileira de Hematologia e Hemoterapia
https://www.readbyqxmd.com/read/29148746/keto-enol-tautomerization-triggers-an-electrophilic-aldehyde-deformylation-reaction-by-a-nonheme-manganese-iii-peroxo-complex
#2
Fabián G Cantú Reinhard, Prasenjit Barman, Gourab Mukherjee, Jitendra Kumar, Deep Kumar, Devesh Kumar, Chivukula V Sastri, Sam P de Visser
Oxygen atom transfer by high-valent enzymatic intermediates remains an enigma in chemical catalysis. In particular, manganese is an important first-row metal involved in key biochemical processes including the biosynthesis of mo-lecular oxygen (through the photosystem II complex) and biodegradation of toxic superoxide to hydrogen peroxide by superoxide dismutase. Biomimetic models of these biological systems have been developed to gain understanding on the structure and properties of short-lived intermediates but also with the aim to create environmentally benign oxidants...
November 17, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29144307/reduction-of-chromium-vi-from-aqueous-solution-by-biomass-of-cladosporium-cladosporioides
#3
María Teresa Garza-González, Jonathan Eduardo Ramírez-Vázquez, María de Los Ángeles García-Hernández, María Elena Cantú-Cárdenas, Adriana Liñan-Montes, Juan Francisco Villarreal-Chiu
The capacity of Cladosporium cladosporioides biomass for removal of Cr(VI) in aqueous solutions was evaluated. A 2 × 2 factorial experiment design was used to study the effects of pH and biomass doses. Lower pH values and larger biomass doses increased the capacity of C. cladosporioides biomass for removal of Cr(VI), reaching a reduction capacity of 492.85 mg g(-1), a significantly higher value compared to other biomass reported. Cr(VI) removal kinetic rates followed a pseudo-second order model, like other fungal biomass reported previously...
November 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/29128023/evaluation-and-management-of-the-potential-lung-donor
#4
REVIEW
Andrew Courtwright, Edward Cantu
The expansion of the donor lung pool has involved an evidence-driven redefinition of acceptable donors. Proceeding with transplantation with an acceptable rather than ideal donor depends on specific patient-related and organ-related risk factors as well as the severity of recipient illness. Although the physiologic optimization of brain-dead donors has not changed significantly in recent years, the use of donor management protocols has improved procurement rates. Ex vivo lung perfusion is an increasingly viable strategy to recondition lungs that would otherwise fall below the acceptable threshold for transplant...
December 2017: Clinics in Chest Medicine
https://www.readbyqxmd.com/read/29127264/protein-moonlighting-revealed-by-non-catalytic-phenotypes-of-yeast-enzymes
#5
Adriana Espinosa-Cantú, Diana Ascencio, Selene Herrera-Basurto, Jiewei Xu, Assen Roguev, Nevan J Krogan, Alexander DeLuna
A single gene can partake in several biological processes, and therefore gene deletions can lead to different-sometimes unexpected-phenotypes. However, it is not always clear whether such pleiotropy reflects the loss of a unique molecular activity involved in different processes or the loss of a multifunctional protein. Here, using Saccharomyces cerevisiae metabolism as a model, we systematically test the null hypothesis that enzyme phenotypes depend on a single annotated molecular function, namely their catalysis...
November 10, 2017: Genetics
https://www.readbyqxmd.com/read/29106653/the-berlin-international-consensus-meeting-on-concussion-in-sport
#6
Gavin A Davis, Richard G Ellenbogen, Julian Bailes, Robert C Cantu, Karen M Johnston, Geoffrey T Manley, Shinji Nagahiro, Allen Sills, Charles H Tator, Paul McCrory
The Fifth International Conference on Concussion in Sport was held in Berlin in October 2016. A series of 12 questions and subquestions was developed and the expert panel members were required to perform a systematic review to answer each question. Following presentation at the Berlin meeting of the systematic review, poster abstracts and audience discussion, the summary Consensus Statement was produced. Further, a series of tools for the management of sport-related concussion was developed, including the Sport Concussion Assessment Tool Fifth edition (SCAT5), the Child SCAT5, and the Concussion Recognition Tool Fifth edition...
June 30, 2017: Neurosurgery
https://www.readbyqxmd.com/read/29103861/public-and-private-hospital-care-disparities-of-ischemic-stroke-in-mexico-results-from-the-primer-registro-mexicano-de-isquemia-cerebral-premier-study
#7
José Luis Ruiz-Sandoval, María Eugenia Briseño-Godínez, Erwin Chiquete-Anaya, Antonio Arauz-Góngora, Rogelio Troyo-Sanromán, Juan Didier Parada-Garza, Alma Ramos-Moreno, Fernando Barinagarrementería, Luis Manuel Murillo-Bonilla, Carlos Cantú-Brito
BACKGROUND AND AIMS: Mortality and bad outcome by stroke are higher in developing countries than in industrialized countries. Health-care system efficiency could explain these disparities. Our objective was to identify the impact on short- and middle-term outcomes of patients with acute ischemic stroke (AIS) among public and private Mexican medical care. METHODS: We analyzed data from patients with AIS included in the Primer Registro Mexicano de Isquemia Cerebral (PREMIER) study...
November 2, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29102390/comorbidities-clinical-features-and-prognostic-implications-of-cancer-patients-with-cerebrovascular-disease
#8
Bernardo Cacho-Díaz, Nydia A Lorenzana-Mendoza, Héctor Spínola-Maroño, Gervith Reyes-Soto, Carlos Cantú-Brito
PURPOSE: The objective of this study was to identify and describe the comorbidities, clinical features, and prognostic implications of cancer patients with cerebrovascular disease. MATERIALS AND METHODS: All patients with cerebrovascular disease (CVD) seen in the neuro-oncology unit at a cancer referral center from April 2010 to November 2016 were included; demographic, oncologic diagnosis, risk factors, and prognostic considerations were presented as well. RESULTS: We report on 256 patients with CVD and cancer, of whom 66% were women...
October 25, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29093707/add-on-pyridostigmine-enhances-cd4-t-cell-recovery-in-hiv-1-infected-immunological-non-responders-a-proof-of-concept-study
#9
Sergio I Valdés-Ferrer, José C Crispín, Pablo F Belaunzarán-Zamudio, Carlos A Rodríguez-Osorio, Bernardo Cacho-Díaz, Jorge Alcocer-Varela, Carlos Cantú-Brito, Juan Sierra-Madero
Background: In human immunodeficiency virus (HIV)-infection, persistent T-cell activation leads to rapid turnover and increased cell death, leading to immune exhaustion and increased susceptibility to opportunistic infections. Stimulation of the vagus nerve increases acetylcholine (ACh) release and modulates inflammation in chronic inflammatory conditions, a neural mechanism known as the cholinergic anti-inflammatory pathway (CAP). Pyridostigmine (PDG), an ACh-esterase inhibitor, increases the half-life of endogenous ACh, therefore mimicking the CAP...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29083134/clinical-endocrinology-and-hormones-quantitation-the-increasing-role-of-mass-spectrometry
#10
Federica D'Aurizio, Marco Cantù
Clinical endocrinology has always had a close relationship with laboratory medicine. In fact, the quantification of hormones is of great importance for diagnosis, treatment, recurrence and patient's prognosis of endocrine disorders. This review dealt with the role of the laboratory in diagnosing endocrine pathologies related to adrenal gland, pituitary, gonads and thyroid. The measurements of the main hormones (17- hydroxyprogesterone, androstenedione, dehydroepiandrosterone sulphate, testosterone, estradiol, cortisol, aldosterone, metanephrines, thyroglobulin and insulin-like-growth factor-1) were described considering analytical characteristics but also some aspects of pre-analytical and post- analytical steps...
October 27, 2017: Minerva Endocrinologica
https://www.readbyqxmd.com/read/29081543/sorption-of-cr-iii-and-cr-vi-to-k2mn4o9-nanomaterial-a-study-of-the-effect-of-ph-time-temperature-and-interferences
#11
J P Valle, B Gonzalez, J Schultz, D Salinas, D F Gonzalez, C Valdes, J M Cantu, T M Eubanks, J G Parsons
A Rancieite type material (K2Mn4O9) nanomaterial was synthesized and tested for the removal of chromium (III) and chromium (VI) from aqueous solutions. The synthesized nanomaterial was characterized using powder XRD and SEM. XRD showed weak diffraction peaks at only at the angles associated with K2Mn4O9. The SEM corroborated that the nanoparticles were present; however, the nanoparticles were clustered into larger aggregates. Batch studies were performed to determine the optimum pH, capacity, time dependency, interferences, and the thermodynamics of the binding...
July 2017: Microchemical Journal, Devoted to the Application of Microtechniques in All Branches of Science
https://www.readbyqxmd.com/read/29077701/histology-as-prognostic-factor-in-early-stage-cervical-carcinoma-experience-in-a-third-level-institution
#12
Salim Abraham Barquet-Muñoz, Efraín Cruz-Rodríguez, David Francisco Cantú De León, David Isla-Ortiz, Gonzalo Montalvo-Esquivel, Luis Alonso Herrera-Montalvo, Carlos Pérez-Plasencia, Delia Pérez-Montiel, Ángel Herrera-Gómez
BACKGROUND: Cervical carcinoma (CC) is one of the most frequent neoplasms, especially in developing countries. The most common histopathological type is squamous cell carcinoma (SCC), followed by adenocarcinoma (AC) and adenosquamous carcinoma (ASC). Prognosis according to histological type is controversial. OBJECTIVE: The objective of this study is to describe and compare the prognoses of the most common histologies of CC in the early stages. MATERIALS AND METHODS: We reviewed records of patients attended at the Instituto Nacional de Cancerología of Mexico with CC surgically treated Stages IA2-IB1 and IIA1, including the histological types SCC, AC, and ASC...
September 2017: Revista de Investigación Clínica; Organo del Hospital de Enfermedades de la Nutrición
https://www.readbyqxmd.com/read/29066007/point-shear-wave-elastography-in-chronic-pancreatitis-a-promising-tool-for-staging-disease-severity
#13
Roberta Pozzi, Ilaria Parzanese, Alessandra Baccarin, Mariangela Giunta, Clara Benedetta Conti, Paolo Cantù, Giovanni Casazza, Andrea Tenca, Roberto Rosa, Daniele Gridavilla, Giovanni Casella, Dario Conte, Mirella Fraquelli
BACKGROUND: Objectives: ElastPQ(®)-pSWE is an ultrasound technique developed to stage disease severity in patients with chronic liver diseases. Little data is available about its application to the pancreas. We aimed to assess the feasibility and reproducibility of pancreatic stiffness (PS) measurements in patients with chronic pancreatitis and their relationship with clinical and laboratory data. MATERIAL AND METHODS: 52 consecutive patients with chronic pancreatitis (CP) (40 males; median age 60 years) underwent hepatic and pancreatic pSWE...
October 13, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29059194/role-of-neuropilin-1-semaphorin-3a-signaling-in-the-functional-and-morphological-integrity-of-the-cochlea
#14
Pezhman Salehi, Marshall X Ge, Usha Gundimeda, Leah Michelle Baum, Homero Lael Cantu, Joel Lavinsky, Litao Tao, Anthony Myint, Charlene Cruz, Juemei Wang, Angeliki Maria Nikolakopoulou, Carolina Abdala, Matthew William Kelley, Takahiro Ohyama, Thomas Matthew Coate, Rick A Friedman
Neuropilin-1 (Nrp1) encodes the transmembrane cellular receptor neuropilin-1, which is associated with cardiovascular and neuronal development and was within the peak SNP interval on chromosome 8 in our prior GWAS study on age-related hearing loss (ARHL) in mice. In this study, we generated and characterized an inner ear-specific Nrp1 conditional knockout (CKO) mouse line because Nrp1 constitutive knockouts are embryonic lethal. In situ hybridization demonstrated weak Nrp1 mRNA expression late in embryonic cochlear development, but increased expression in early postnatal stages when cochlear hair cell innervation patterns have been shown to mature...
October 2017: PLoS Genetics
https://www.readbyqxmd.com/read/29051239/whole-genome-sequencing-of-a-human-clinical-isolate-of-the-novel-species-klebsiella-quasivariicola-sp-nov
#15
S Wesley Long, Sarah E Linson, Matthew Ojeda Saavedra, Concepcion Cantu, James J Davis, Thomas Brettin, Randall J Olsen
In a study of 1,777 Klebsiella strains, we discovered KPN1705, which was distinct from all recognized Klebsiella spp. We closed the genome of strain KPN1705 using a hybrid of Illumina short-read and Oxford Nanopore long-read technologies. For this novel species, we propose the name Klebsiella quasivariicola sp. nov.
October 19, 2017: Genome Announcements
https://www.readbyqxmd.com/read/29042518/evolutionary-genomics-of-grape-vitis-vinifera-ssp-vinifera-domestication
#16
Yongfeng Zhou, Mélanie Massonnet, Jaleal S Sanjak, Dario Cantu, Brandon S Gaut
We gathered genomic data from grapes (Vitis vinifera ssp. vinifera), a clonally propagated perennial crop, to address three ongoing mysteries about plant domestication. The first is the duration of domestication; archaeological evidence suggests that domestication occurs over millennia, but genetic evidence indicates that it can occur rapidly. We estimated that our wild and cultivated grape samples diverged ∼22,000 years ago and that the cultivated lineage experienced a steady decline in population size (Ne ) thereafter...
October 31, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29027574/the-prognostic-significance-of-serum-xcl1-concentration-in-patients-with-acute-lymphoblastic-leukemia-a-pilot-study
#17
Cesar Homero Gutiérrez-Aguirre, Juan Antonio Flores-Jiménez, Julio Alatorre-Ricardo, Olga Graciela Cantú-Rodríguez, Adrián Rosas-Taraco, Rosario Salazar-Riojas, José Carlos Jaime-Pérez, Mónica Sánchez-Cárdenas, Leslie López-Silva, Azalia M Martínez-Castilla, Mario Cesar Salinas-Carmona, David Gómez-Almaguer
There is no information about XCL1 in patients with acute lymphoblastic leukemia (ALL). The objective of this study was to correlate the serum levels of XCL1 and survival in ALL patients. Only ALL patients older than 12 months were considered to participate. Serum XCL1 was measured at diagnosis, end of remission induction, and end of consolidation. Thirty-three ALL patients with median age of 21 years (1-78) were included. Higher XCL1 level (above 50 pg/mL) at ALL diagnosis correlated with higher survival (p = 0...
October 13, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28992764/use-of-guidelines-for-reducing-stroke-risk-in-patients-with-nonvalvular-atrial-fibrillation-a-review-from-a-latin-american-perspective
#18
Carlos Cantú-Brito, Gisele Sampaio Silva, Sebastián F Ameriso
Atrial fibrillation (AF) is a prominent risk factor for stroke and a leading cause of death and disability throughout Latin America. Contemporary evidence-based guidelines for the management of AF and stroke incorporate the use of practical and relatively simple scoring methods to estimate both stroke and bleeding risk, in order to assist in matching patients with appropriate interventions. This review examines consistencies and differences among guidelines for reducing stroke risk in patients with AF, assessing the role of user-friendly scoring methods to determine appropriate patients for anticoagulation and other treatment options...
January 1, 2017: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/28991286/la-necesidad-de-publicar-y-el-nacimiento-de-las-revistas-m%C3%A3-dicas-depredadoras
#19
Alejandra Castañón-González, Jaime Javier Cantú-Pompa, Alejandro Miranda-Hernández, Julio César López-Valdés
No abstract text is available yet for this article.
2017: Revista de Investigación Clínica; Organo del Hospital de Enfermedades de la Nutrición
https://www.readbyqxmd.com/read/28973989/a-meta-analysis-to-determine-the-impact-of-restaurant-menu-labeling-on-calories-and-nutrients-ordered-or-consumed-in-u-s-adults
#20
REVIEW
Thaisa M Cantu-Jungles, Lacey A McCormack, James E Slaven, Maribeth Slebodnik, Heather A Eicher-Miller
A systematic review and meta-analysis determined the effect of restaurant menu labeling on calories and nutrients chosen in laboratory and away-from-home settings in U.S. adults. Cochrane-based criteria adherent, peer-reviewed study designs conducted and published in the English language from 1950 to 2014 were collected in 2015, analyzed in 2016, and used to evaluate the effect of nutrition labeling on calories and nutrients ordered or consumed. Before and after menu labeling outcomes were used to determine weighted mean differences in calories, saturated fat, total fat, carbohydrate, and sodium ordered/consumed which were pooled across studies using random effects modeling...
September 30, 2017: Nutrients
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