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https://www.readbyqxmd.com/read/28727227/long-term-outcomes-of-simultaneous-heart-and-kidney-transplantation-in-pediatric-recipients
#1
Patricia L Weng, Juan Carlos Alejos, Nancy Halnon, Qiuheng Zhang, Elaine F Reed, Eileen Tsai Chambers
Pediatric sHKTx has become an effective therapy for patients with combined cardiac and renal failure. Often, these patients develop human leukocyte antigen antibodies from their previous allografts and are therefore more difficult to re-transplant. We describe the largest case series of a predominantly sensitized pediatric sHKTx with emphasis on medical management and patient outcomes. Demographics, clinical characteristics, antibody, and biopsy data were retrospectively collected from University of California, Los Angeles database and correlated with short- and long-term patient and allograft outcomes of all sHKTx performed between 2002 and 2015...
July 20, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28722595/multidrug-resistant-microorganisms-colonizing-lower-extremity-wounds-in-patients-in-a-tertiary-care-hospital-lima-peru
#2
Rafael Mendo-Lopez, Luis Jasso, Ximena Guevara, Aurora Lizeth Astocondor, Saul Alejos, Ana C Bardossy, Tyler Prentiss, Marcus J Zervos, Jan Jacobs, Coralith García
Multidrug-resistant organism (MDRO) infections cause high morbidity and mortality, and high costs to patients and hospitals. The study aims were to determine the frequency of MDRO colonization and associated factors in patients with lower-extremity wounds with colonization. A cross-sectional study was designed during November 2015 to July 2016 in a tertiary care hospital in Lima, Peru. A wound swab was obtained for culture and susceptibility testing. MDRO colonization was defined if the culture grew with methicillin-resistant Staphylococcus aureus, vancomycin-resistant enterococci, and/or extended spectrum beta-lactamase (ESBL) microorganisms...
June 19, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28704727/nrf2-deficiency-replicates-transcriptomic-changes-in-alzheimer-s-patients-and-worsens-app-and-tau-pathology
#3
Ana I Rojo, Marta Pajares, Patricia Rada, Angel Nuñez, Alejo J Nevado-Holgado, Richard Killik, Fred Van Leuven, Elena Ribe, Simon Lovestone, Masayuki Yamamoto, Antonio Cuadrado
Failure to translate successful neuroprotective preclinical data to a clinical setting in Alzheimer's disease (AD) indicates that amyloidopathy and tauopathy alone provide an incomplete view of disease. We have tested here the relevance of additional homeostatic deviations that result from loss of activity of transcription factor NRF2, a crucial regulator of multiple stress responses whose activity declines with ageing. A transcriptomic analysis demonstrated that NRF2-KO mouse brains reproduce 7 and 10 of the most dysregulated pathways of human ageing and AD brains, respectively...
July 5, 2017: Redox Biology
https://www.readbyqxmd.com/read/28702718/single-center-experience-using-selexipag-in-a-pediatric-population
#4
Roberto Gallotti, Diana E Drogalis-Kim, Gary Satou, Juan Alejos
Pulmonary arterial hypertension (PAH) is a rare and progressive disorder. Current treatment in the pediatric population includes phosphodiesterase 5 inhibitors (PDE-5i), endothelin receptor antagonists (ERA), and both inhaled and intravenous prostacyclin pathway agonists. As of December 22, 2015 the first oral prostacyclin pathway agonist, selexipag (Uptravi(®)), was FDA approved in the US. In this case series, we discuss our single-center experience using selexipag in a pediatric population, composed of both patients with idiopathic PAH, and patients with congenital heart disease and PAH...
July 13, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28699560/dengue-occurrence-relations-and-serology-cross-sectional-analysis-of-results-from-the-guerrero-state-mexico-baseline-for-a-cluster-randomised-controlled-trial-of-community-mobilisation-for-dengue-prevention
#5
Elizabeth Nava-Aguilera, Arcadio Morales-Pérez, Alejandro Balanzar-Martínez, Ofelia Rodríguez-Ramírez, Abel Jiménez-Alejo, Miguel Flores-Moreno, David Gasga-Salinas, José Legorreta-Soberanis, Sergio Paredes-Solís, Pedro Antonio Morales-Nava, María de Lourdes Soto-Ríos, Robert J Ledogar, Joséfina Coloma, Eva Harris, Neil Andersson
BACKGROUND: The Mexican arm of the Camino Verde trial of community mobilisation for dengue prevention covered three coastal regions of Guerrero state: Acapulco, Costa Grande and Costa Chica. A baseline cross-sectional survey provided data for community mobilisation and for adapting the intervention design to concrete conditions in the intervention areas. METHODS: Trained field teams constructed community profiles in randomly selected clusters, based on observation and key informant interviews...
May 30, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28699555/pupal-productivity-in-rainy-and-dry-seasons-findings-from-the-impact-survey-of-a-randomised-controlled-trial-of-dengue-prevention-in-guerrero-mexico
#6
Abel Jiménez-Alejo, Arcadio Morales-Pérez, Elizabeth Nava-Aguilera, Miguel Flores-Moreno, Sinahí Apreza-Aguilar, Wilhelm Carranza-Alcaraz, Antonio Juan Cortés-Guzmán, Ildefonso Fernández-Salas, Robert J Ledogar, Anne Cockcroft, Neil Andersson
BACKGROUND: The follow-up survey of a cluster-randomised controlled trial of evidence-based community mobilisation for dengue control in Nicaragua and Mexico included entomological information from the 2012 rainy and dry seasons. We used data from the Mexican arm of the trial to assess the impact of the community action on pupal production of the dengue vector Aedes aegypti in both rainy and dry seasons. METHODS: Trained field workers inspected household water containers in 90 clusters and collected any pupae or larvae present for entomological examination...
May 30, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28690168/pegylation-of-cytochrome-p450-enhances-its-biocatalytic-performance-for-pesticide-transformation
#7
Karla Alejo-González, Katrin Quester, Erik Hanson, Ismael Secundino, Yvonne Rosenstein, Alejandro Huerta-Saquero, Rafael Vazquez-Duhalt
Pesticide intoxication is a major public health concern, and unfortunately there is not an effective treatment for severe organophosphorus pesticide intoxication. In this work, a non-immunogenic enzymatic bioconjugate based on cytochrome P450 was assayed for organophosphorus pesticide transformation. Enzyme therapy is an alternative approach to inactivate pesticides in the bloodstream, transforming them into less toxic metabolites. A variant of cytochrome P450 (CYPBM3 F87A) from Bacillus megaterium was chemically modified with polyethylene glycol...
July 6, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28689515/rapidly-progressive-heart-failure-requiring-transplantation-in-muscular-dystrophy-a-need-for-frequent-screening
#8
Justin M Pick, Zachary D Ellis, Juan C Alejos, Anthony C Chang
Fukuyama congenital muscular dystrophy weakens both skeletal and cardiac muscles, but the rate of cardiomyopathic progression can accelerate faster than that of skeletal muscles. A 14-year-old boy with Fukuyama congenital muscular dystrophy presented with mild skeletal myopathy but severe cardiomyopathy requiring heart transplantation within 1 year of declining heart function. These patients need frequent screening regardless of musculoskeletal symptoms.
July 10, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28658205/mtorc1-dependent-amd1-regulation-sustains-polyamine-metabolism-in-prostate-cancer
#9
Amaia Zabala-Letona, Amaia Arruabarrena-Aristorena, Natalia Martín-Martín, Sonia Fernandez-Ruiz, James D Sutherland, Michelle Clasquin, Julen Tomas-Cortazar, Jose Jimenez, Ines Torres, Phong Quang, Pilar Ximenez-Embun, Ruzica Bago, Aitziber Ugalde-Olano, Ana Loizaga-Iriarte, Isabel Lacasa-Viscasillas, Miguel Unda, Verónica Torrano, Diana Cabrera, Sebastiaan M van Liempd, Ylenia Cendon, Elena Castro, Stuart Murray, Ajinkya Revandkar, Andrea Alimonti, Yinan Zhang, Amelia Barnett, Gina Lein, David Pirman, Ana R Cortazar, Leire Arreal, Ludmila Prudkin, Ianire Astobiza, Lorea Valcarcel-Jimenez, Patricia Zuñiga-García, Itziar Fernandez-Dominguez, Marco Piva, Alfredo Caro-Maldonado, Pilar Sánchez-Mosquera, Mireia Castillo-Martín, Violeta Serra, Naiara Beraza, Antonio Gentilella, George Thomas, Mikel Azkargorta, Felix Elortza, Rosa Farràs, David Olmos, Alejo Efeyan, Juan Anguita, Javier Muñoz, Juan M Falcón-Pérez, Rosa Barrio, Teresa Macarulla, Jose M Mato, Maria L Martinez-Chantar, Carlos Cordon-Cardo, Ana M Aransay, Kevin Marks, José Baselga, Josep Tabernero, Paolo Nuciforo, Brendan D Manning, Katya Marjon, Arkaitz Carracedo
Activation of the PTEN-PI3K-mTORC1 pathway consolidates metabolic programs that sustain cancer cell growth and proliferation. Here we show that mechanistic target of rapamycin complex 1 (mTORC1) regulates polyamine dynamics, a metabolic route that is essential for oncogenicity. By using integrative metabolomics in a mouse model and human biopsies of prostate cancer, we identify alterations in tumours affecting the production of decarboxylated S-adenosylmethionine (dcSAM) and polyamine synthesis. Mechanistically, this metabolic rewiring stems from mTORC1-dependent regulation of S-adenosylmethionine decarboxylase 1 (AMD1) stability...
July 6, 2017: Nature
https://www.readbyqxmd.com/read/28651785/septic-arthritis-following-arthroscopic-reconstruction-of-cruciate-ligaments-of-the-knee-retrospective-case-review
#10
Alejo Erice, M Inmaculada Neira, Sergio Vargas-Prada, Ana Chiaraviglio, Javier Gutiérrez-Guisado, Ricardo Rodríguez de Oya
INTRODUCTION: Rupture of cruciate ligaments of the knee is a common injury that is repaired by arthroscopic reconstruction, which can give rise to septic arthritis. The objective of this article is to describe the clinical and microbiological aspects of this entity. METHODS: Retrospective review of cases of septic arthritis following arthroscopic reconstruction of cruciate ligaments of the knee that occurred at a single institution from 2000-2015. According to time elapsed from surgery, infections were classified as acute (< 14 days), subacute (> 14 days and<30 days), and late (> 30 days)...
June 23, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/28646445/update-on-neurocritical-care-of-stroke
#11
Jason Siegel, Michael A Pizzi, J Brent Peel, David Alejos, Nnenne Mbabuike, Benjamin L Brown, David Hodge, W David Freeman
PURPOSE OF REVIEW: This review will highlight the recent advancements in acute ischemic stroke diagnosis and treatment, with special attention to new features and recommendations of stroke care in the neurocritical care unit. RECENT FINDINGS: New studies suggest that pre-hospital treatment of stroke with mobile stroke units and telestroke technology may lead to earlier stroke therapy with intravenous tissue plasminogen activator (tPA), and recent studies show tPA can be given in previously contraindicated situations...
August 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28636954/germinal-center-selection-and-affinity-maturation-require-dynamic-regulation-of-mtorc1-kinase
#12
Jonatan Ersching, Alejo Efeyan, Luka Mesin, Johanne T Jacobsen, Giulia Pasqual, Brian C Grabiner, David Dominguez-Sola, David M Sabatini, Gabriel D Victora
During antibody affinity maturation, germinal center (GC) B cells cycle between affinity-driven selection in the light zone (LZ) and proliferation and somatic hypermutation in the dark zone (DZ). Although selection of GC B cells is triggered by antigen-dependent signals delivered in the LZ, DZ proliferation occurs in the absence of such signals. We show that positive selection triggered by T cell help activates the mechanistic target of rapamycin complex 1 (mTORC1), which promotes the anabolic program that supports DZ proliferation...
June 20, 2017: Immunity
https://www.readbyqxmd.com/read/28620608/a-path-to-implement-precision-child-health-cardiovascular-medicine
#13
REVIEW
Marlin Touma, Brian Reemtsen, Nancy Halnon, Juan Alejos, J Paul Finn, Stanley F Nelson, Yibin Wang
Congenital heart defects (CHDs) affect approximately 1% of live births and are a major source of childhood morbidity and mortality even in countries with advanced healthcare systems. Along with phenotypic heterogeneity, the underlying etiology of CHDs is multifactorial, involving genetic, epigenetic, and/or environmental contributors. Clear dissection of the underlying mechanism is a powerful step to establish individualized therapies. However, the majority of CHDs are yet to be clearly diagnosed for the underlying genetic and environmental factors, and even less with effective therapies...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28571768/copper-activation-of-organophosporus-compounds-detoxication-by-chicken-serum
#14
Antonio Monroy-Noyola, Miguel Angel Sogorb, Nuria Díaz-Alejo, Eugenio Vilanova
Avian species contain low levels of enzymes that hydrolyze organophosphorus compounds (OPs), and chickens are used as a model of OPs delayed neurotoxicity. For both reasons, we studied the ability of chicken tissue for OP detoxication. A significant activating effect of Cu(2+) on the hydrolysis of O-hexyl O-2,5-dichlorophenyl phosphoramidate (HDCP) was observed in hen plasma and the microsomal fractions of the liver, brain, and mainly in hen serum, by spectrophotometric and chiral chromatography methods. The concentration of 1 mM of Cu(2+) or Zn(2+) showed 200% and 168% activation, respectively, in hen plasma compared with the Ca(2+)-dependent hydrolysis, whereas these cations had an inhibitory effect on soluble liver and brain fractions...
May 29, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28555548/recombination-events-and-variability-among-full-length-genomes-of-co-circulating-molluscum-contagiosum-virus-subtypes-1-and-2
#15
Alberto López-Bueno, Marcos Parras-Moltó, Olivia López-Barrantes, Sylvia Belda, Alí Alejo
Molluscum contagiosum virus (MCV) is the sole member of the Molluscipoxvirus genus and causes a highly prevalent human disease of the skin characterized by the formation of a variable number of lesions that can persist for prolonged periods of time. Two major genotypes, subtype 1 and subtype 2, are recognized, although currently only a single complete genomic sequence corresponding to MCV subtype 1 is available. Using next-generation sequencing techniques, we report the complete genomic sequence of four new MCV isolates, including the first one derived from a subtype 2...
May 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28495125/comparative-study-of-presurgical-hand-hygiene-with-hydroalcoholic-solution-versus-traditional-presurgical-hand-hygiene
#16
M Beatriz López Martín, Alejo Erice Calvo-Sotelo
OBJECTIVE: To compare presurgical hand hygiene with hydroalcoholic solution following the WHO protocol with traditional presurgical hand hygiene. METHODS: Cultures of the hands of surgeons and surgical nurses were performed before and after presurgical hand hygiene and after removing gloves at the end of surgery. Cultures were done in 2different days: the first day after traditional presurgical hand hygiene, and the second day after presurgical hand hygiene with hydroalcoholic solution following the WHO protocol...
May 8, 2017: Enfermería Clínica
https://www.readbyqxmd.com/read/28483879/an-r2r3-myb-transcription-factor-regulates-capsaicinoid-biosynthesis
#17
Magda L Arce-Rodríguez, Neftalí Ochoa-Alejo
Capsaicinoids are responsible for the hot taste of chili peppers. They are restricted to the genus Capsicum and are synthesized by the acylation of the aromatic compound vanillylamine (derived from the phenylpropanoid pathway) with a branched-chain fatty acid by the catalysis of the putative enzyme capsaicinoid synthase. R2R3-MYB transcription factors have been reported in different species of plants as regulators of structural genes of the phenylpropanoid pathway; therefore, we hypothesized that MYB genes might be involved in the regulation of the biosynthesis of pungent compounds...
July 2017: Plant Physiology
https://www.readbyqxmd.com/read/28457016/patterns-of-primary-care-utilization-before-and-after-living-kidney-donation
#18
Jennifer L Alejo, Xun Luo, Allan B Massie, Macey L Henderson, Sandra R DiBrito, Jayme E Locke, Tanjala S Purnell, Brian J Boyarsky, Saad Anjum, Samantha E Halpern, Dorry L Segev
BACKGROUND: Annual visits with a primary care provider (PCP) are recommended for living kidney donors to monitor long-term health postdonation, yet adherence to this recommendation is unknown. METHODS: We surveyed 1170 living donors from our center from 1970 to 2012 to ascertain frequency of PCP visits pre- and postdonation. Interviews occurred median (IQR) 6.6 (3.8-11.0) years post-transplant. We used multivariate logistic regression to examine associations between donor characteristics and PCP visit frequency...
July 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28441961/the-influence-of-insulin-resistance-on-cerebrospinal-fluid-and-plasma-biomarkers-of-alzheimer-s-pathology
#19
REVIEW
Sarah Westwood, Benjamine Liu, Alison L Baird, Sneha Anand, Alejo J Nevado-Holgado, Danielle Newby, Maria Pikkarainen, Merja Hallikainen, Johanna Kuusisto, Johannes R Streffer, Gerald Novak, Kaj Blennow, Ulf Andreasson, Henrik Zetterberg, Ulf Smith, Markku Laakso, Hilkka Soininen, Simon Lovestone
BACKGROUND: Insulin resistance (IR) has previously been associated with an increased risk of developing Alzheimer's disease (AD), although the relationship between IR and AD is not yet clear. Here, we examined the influence of IR on AD using plasma and cerebrospinal fluid (CSF) biomarkers related to IR and AD in cognitively healthy men. We also aimed to characterise the shared protein signatures between IR and AD. METHODS: Fifty-eight cognitively healthy men, 28 IR and 30 non-IR (age and APOE ε4 matched), were drawn from the Metabolic Syndrome in Men study in Kuopio, Finland...
April 26, 2017: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/28440881/overexpression-of-a-type-i-isopentenyl-pyrophosphate-isomerase-of-artemisia-annua-in-the-cytosol-leads-to-high-arteannuin%C3%A2-b-production-and-artemisinin-increase
#20
Dongming Ma, Gui Li, Fatima Alejos-Gonzalez, Yue Zhu, Zhen Xue, Aimin Wang, Hui Zhang, Xing Li, Hechun Ye, Hong Wang, Benye Liu, De-Yu Xie
We recently characterized a gene-terpene network that is associated with artemisinin biosynthesis in self-pollinated (SP) Artemisia annua, an effective antimalarial plant. We hypothesize that an alteration of gene expression in the network may improve the production of artemisinin and its precursors. In this study, we cloned an isopentenyl pyrophosphate isomerase (IPPI) cDNA, AaIPPI1, from Artemisia annua (Aa). The full-length cDNA encodes a type-I IPPI containing a plastid transit peptide (PTP) at its amino terminus...
August 2017: Plant Journal: for Cell and Molecular Biology
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